5877 lines
140 KiB
C
5877 lines
140 KiB
C
/* pp_sys.c
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*
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* Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
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* 2004, 2005, 2006, 2007, 2008 by Larry Wall and others
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*
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* You may distribute under the terms of either the GNU General Public
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* License or the Artistic License, as specified in the README file.
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*
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*/
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/*
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* But only a short way ahead its floor and the walls on either side were
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* cloven by a great fissure, out of which the red glare came, now leaping
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* up, now dying down into darkness; and all the while far below there was
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* a rumour and a trouble as of great engines throbbing and labouring.
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*
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* [p.945 of _The Lord of the Rings_, VI/iii: "Mount Doom"]
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*/
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/* This file contains system pp ("push/pop") functions that
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* execute the opcodes that make up a perl program. A typical pp function
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* expects to find its arguments on the stack, and usually pushes its
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* results onto the stack, hence the 'pp' terminology. Each OP structure
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* contains a pointer to the relevant pp_foo() function.
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*
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* By 'system', we mean ops which interact with the OS, such as pp_open().
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*/
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#include "EXTERN.h"
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#define PERL_IN_PP_SYS_C
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#include "perl.h"
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#include "time64.h"
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#ifdef I_SHADOW
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/* Shadow password support for solaris - pdo@cs.umd.edu
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* Not just Solaris: at least HP-UX, IRIX, Linux.
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* The API is from SysV.
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*
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* There are at least two more shadow interfaces,
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* see the comments in pp_gpwent().
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*
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* --jhi */
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# ifdef __hpux__
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/* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
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* and another MAXINT from "perl.h" <- <sys/param.h>. */
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# undef MAXINT
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# endif
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# include <shadow.h>
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#endif
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#ifdef I_SYS_RESOURCE
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# include <sys/resource.h>
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#endif
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#ifdef NETWARE
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NETDB_DEFINE_CONTEXT
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#endif
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#ifdef HAS_SELECT
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# ifdef I_SYS_SELECT
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# include <sys/select.h>
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# endif
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#endif
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/* XXX Configure test needed.
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h_errno might not be a simple 'int', especially for multi-threaded
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applications, see "extern int errno in perl.h". Creating such
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a test requires taking into account the differences between
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compiling multithreaded and singlethreaded ($ccflags et al).
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HOST_NOT_FOUND is typically defined in <netdb.h>.
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*/
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#if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
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extern int h_errno;
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#endif
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#ifdef HAS_PASSWD
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# ifdef I_PWD
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# include <pwd.h>
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# elif !defined(VMS)
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struct passwd *getpwnam (char *);
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struct passwd *getpwuid (Uid_t);
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# endif
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# ifdef HAS_GETPWENT
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# ifndef getpwent
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struct passwd *getpwent (void);
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# elif defined (VMS) && defined (my_getpwent)
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struct passwd *Perl_my_getpwent (pTHX);
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# endif
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# endif
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#endif
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#ifdef HAS_GROUP
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# ifdef I_GRP
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# include <grp.h>
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# else
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struct group *getgrnam (char *);
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struct group *getgrgid (Gid_t);
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# endif
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# ifdef HAS_GETGRENT
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# ifndef getgrent
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struct group *getgrent (void);
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# endif
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# endif
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#endif
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#ifdef I_UTIME
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# if defined(_MSC_VER) || defined(__MINGW32__)
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# include <sys/utime.h>
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# else
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# include <utime.h>
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# endif
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#endif
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#ifdef HAS_CHSIZE
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# ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
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# undef my_chsize
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# endif
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# define my_chsize PerlLIO_chsize
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#elif defined(HAS_TRUNCATE)
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# define my_chsize PerlLIO_chsize
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#else
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I32 my_chsize(int fd, Off_t length);
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#endif
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#ifdef HAS_FLOCK
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# define FLOCK flock
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#else /* no flock() */
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/* fcntl.h might not have been included, even if it exists, because
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the current Configure only sets I_FCNTL if it's needed to pick up
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the *_OK constants. Make sure it has been included before testing
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the fcntl() locking constants. */
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# if defined(HAS_FCNTL) && !defined(I_FCNTL)
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# include <fcntl.h>
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# endif
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# if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
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# define FLOCK fcntl_emulate_flock
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# define FCNTL_EMULATE_FLOCK
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# elif defined(HAS_LOCKF)
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# define FLOCK lockf_emulate_flock
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# define LOCKF_EMULATE_FLOCK
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# endif
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# ifdef FLOCK
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static int FLOCK (int, int);
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/*
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* These are the flock() constants. Since this sytems doesn't have
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* flock(), the values of the constants are probably not available.
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*/
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# ifndef LOCK_SH
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# define LOCK_SH 1
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# endif
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# ifndef LOCK_EX
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# define LOCK_EX 2
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# endif
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# ifndef LOCK_NB
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# define LOCK_NB 4
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# endif
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# ifndef LOCK_UN
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# define LOCK_UN 8
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# endif
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# endif /* emulating flock() */
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#endif /* no flock() */
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#define ZBTLEN 10
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static const char zero_but_true[ZBTLEN + 1] = "0 but true";
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#if defined(I_SYS_ACCESS) && !defined(R_OK)
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# include <sys/access.h>
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#endif
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#include "reentr.h"
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#ifdef __Lynx__
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/* Missing protos on LynxOS */
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void sethostent(int);
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void endhostent(void);
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void setnetent(int);
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void endnetent(void);
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void setprotoent(int);
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void endprotoent(void);
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void setservent(int);
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void endservent(void);
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#endif
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#ifdef __amigaos4__
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# include "amigaos4/amigaio.h"
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#endif
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#undef PERL_EFF_ACCESS /* EFFective uid/gid ACCESS */
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/* F_OK unused: if stat() cannot find it... */
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#if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
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/* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
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# define PERL_EFF_ACCESS(p,f) (access((p), (f) | EFF_ONLY_OK))
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#endif
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#if !defined(PERL_EFF_ACCESS) && defined(HAS_EACCESS)
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# ifdef I_SYS_SECURITY
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# include <sys/security.h>
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# endif
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# ifdef ACC_SELF
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/* HP SecureWare */
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# define PERL_EFF_ACCESS(p,f) (eaccess((p), (f), ACC_SELF))
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# else
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/* SCO */
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# define PERL_EFF_ACCESS(p,f) (eaccess((p), (f)))
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# endif
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#endif
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#if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESSX) && defined(ACC_SELF)
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/* AIX's accessx() doesn't declare its argument const, unlike every other platform */
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# define PERL_EFF_ACCESS(p,f) (accessx((char*)(p), (f), ACC_SELF))
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#endif
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#if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESS) \
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&& (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
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|| defined(HAS_SETREGID) || defined(HAS_SETRESGID))
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/* The Hard Way. */
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STATIC int
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S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
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{
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const Uid_t ruid = getuid();
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const Uid_t euid = geteuid();
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const Gid_t rgid = getgid();
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const Gid_t egid = getegid();
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int res;
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#if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
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Perl_croak(aTHX_ "switching effective uid is not implemented");
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#else
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# ifdef HAS_SETREUID
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if (setreuid(euid, ruid))
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# elif defined(HAS_SETRESUID)
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if (setresuid(euid, ruid, (Uid_t)-1))
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# endif
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/* diag_listed_as: entering effective %s failed */
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Perl_croak(aTHX_ "entering effective uid failed");
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#endif
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#if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
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Perl_croak(aTHX_ "switching effective gid is not implemented");
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#else
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# ifdef HAS_SETREGID
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if (setregid(egid, rgid))
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# elif defined(HAS_SETRESGID)
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if (setresgid(egid, rgid, (Gid_t)-1))
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# endif
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/* diag_listed_as: entering effective %s failed */
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Perl_croak(aTHX_ "entering effective gid failed");
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#endif
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res = access(path, mode);
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#ifdef HAS_SETREUID
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if (setreuid(ruid, euid))
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#elif defined(HAS_SETRESUID)
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if (setresuid(ruid, euid, (Uid_t)-1))
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#endif
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/* diag_listed_as: leaving effective %s failed */
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Perl_croak(aTHX_ "leaving effective uid failed");
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#ifdef HAS_SETREGID
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if (setregid(rgid, egid))
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#elif defined(HAS_SETRESGID)
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if (setresgid(rgid, egid, (Gid_t)-1))
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#endif
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/* diag_listed_as: leaving effective %s failed */
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Perl_croak(aTHX_ "leaving effective gid failed");
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return res;
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}
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# define PERL_EFF_ACCESS(p,f) (S_emulate_eaccess(aTHX_ (p), (f)))
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#endif
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PP(pp_backtick)
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{
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dSP; dTARGET;
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PerlIO *fp;
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const char * const tmps = POPpconstx;
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const U8 gimme = GIMME_V;
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const char *mode = "r";
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TAINT_PROPER("``");
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if (PL_op->op_private & OPpOPEN_IN_RAW)
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mode = "rb";
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else if (PL_op->op_private & OPpOPEN_IN_CRLF)
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mode = "rt";
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fp = PerlProc_popen(tmps, mode);
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if (fp) {
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const char * const type = Perl_PerlIO_context_layers(aTHX_ NULL);
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if (type && *type)
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PerlIO_apply_layers(aTHX_ fp,mode,type);
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if (gimme == G_VOID) {
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char tmpbuf[256];
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while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
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NOOP;
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}
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else if (gimme == G_SCALAR) {
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ENTER_with_name("backtick");
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SAVESPTR(PL_rs);
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PL_rs = &PL_sv_undef;
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SvPVCLEAR(TARG); /* note that this preserves previous buffer */
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while (sv_gets(TARG, fp, SvCUR(TARG)) != NULL)
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NOOP;
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LEAVE_with_name("backtick");
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XPUSHs(TARG);
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SvTAINTED_on(TARG);
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}
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else {
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for (;;) {
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SV * const sv = newSV(79);
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if (sv_gets(sv, fp, 0) == NULL) {
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SvREFCNT_dec(sv);
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break;
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}
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mXPUSHs(sv);
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if (SvLEN(sv) - SvCUR(sv) > 20) {
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SvPV_shrink_to_cur(sv);
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}
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SvTAINTED_on(sv);
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}
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}
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STATUS_NATIVE_CHILD_SET(PerlProc_pclose(fp));
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TAINT; /* "I believe that this is not gratuitous!" */
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}
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else {
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STATUS_NATIVE_CHILD_SET(-1);
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if (gimme == G_SCALAR)
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RETPUSHUNDEF;
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}
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RETURN;
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}
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PP(pp_glob)
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{
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OP *result;
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dSP;
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GV * const gv = (PL_op->op_flags & OPf_SPECIAL) ? NULL : (GV *)POPs;
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PUTBACK;
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/* make a copy of the pattern if it is gmagical, to ensure that magic
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* is called once and only once */
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if (SvGMAGICAL(TOPs)) TOPs = sv_2mortal(newSVsv(TOPs));
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tryAMAGICunTARGETlist(iter_amg, (PL_op->op_flags & OPf_SPECIAL));
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if (PL_op->op_flags & OPf_SPECIAL) {
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/* call Perl-level glob function instead. Stack args are:
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* MARK, wildcard
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* and following OPs should be: gv(CORE::GLOBAL::glob), entersub
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* */
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return NORMAL;
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}
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if (PL_globhook) {
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PL_globhook(aTHX);
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return NORMAL;
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}
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/* Note that we only ever get here if File::Glob fails to load
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* without at the same time croaking, for some reason, or if
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* perl was built with PERL_EXTERNAL_GLOB */
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ENTER_with_name("glob");
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#ifndef VMS
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if (TAINTING_get) {
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/*
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* The external globbing program may use things we can't control,
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* so for security reasons we must assume the worst.
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*/
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TAINT;
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taint_proper(PL_no_security, "glob");
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}
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#endif /* !VMS */
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SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
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PL_last_in_gv = gv;
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SAVESPTR(PL_rs); /* This is not permanent, either. */
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PL_rs = newSVpvs_flags("\000", SVs_TEMP);
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#ifndef DOSISH
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#ifndef CSH
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*SvPVX(PL_rs) = '\n';
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#endif /* !CSH */
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#endif /* !DOSISH */
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result = do_readline();
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LEAVE_with_name("glob");
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return result;
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}
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PP(pp_rcatline)
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{
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PL_last_in_gv = cGVOP_gv;
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return do_readline();
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}
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PP(pp_warn)
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{
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dSP; dMARK;
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SV *exsv;
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STRLEN len;
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if (SP - MARK > 1) {
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dTARGET;
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do_join(TARG, &PL_sv_no, MARK, SP);
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exsv = TARG;
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SP = MARK + 1;
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}
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else if (SP == MARK) {
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exsv = &PL_sv_no;
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MEXTEND(SP, 1);
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SP = MARK + 1;
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}
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else {
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exsv = TOPs;
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if (SvGMAGICAL(exsv)) exsv = sv_mortalcopy(exsv);
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}
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if (SvROK(exsv) || (SvPV_const(exsv, len), len)) {
|
|
/* well-formed exception supplied */
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}
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else {
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SV * const errsv = ERRSV;
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SvGETMAGIC(errsv);
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if (SvROK(errsv)) {
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if (SvGMAGICAL(errsv)) {
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exsv = sv_newmortal();
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sv_setsv_nomg(exsv, errsv);
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}
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else exsv = errsv;
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}
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else if (SvPOKp(errsv) ? SvCUR(errsv) : SvNIOKp(errsv)) {
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exsv = sv_newmortal();
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sv_setsv_nomg(exsv, errsv);
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sv_catpvs(exsv, "\t...caught");
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}
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else {
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exsv = newSVpvs_flags("Warning: something's wrong", SVs_TEMP);
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}
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}
|
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if (SvROK(exsv) && !PL_warnhook)
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Perl_warn(aTHX_ "%" SVf, SVfARG(exsv));
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else warn_sv(exsv);
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RETSETYES;
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}
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|
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PP(pp_die)
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{
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dSP; dMARK;
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|
SV *exsv;
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STRLEN len;
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#ifdef VMS
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VMSISH_HUSHED =
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VMSISH_HUSHED || (PL_curcop->op_private & OPpHUSH_VMSISH);
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#endif
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if (SP - MARK != 1) {
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dTARGET;
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do_join(TARG, &PL_sv_no, MARK, SP);
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exsv = TARG;
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SP = MARK + 1;
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}
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else {
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exsv = TOPs;
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}
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|
|
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if (SvROK(exsv) || (SvPV_const(exsv, len), len)) {
|
|
/* well-formed exception supplied */
|
|
}
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|
else {
|
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SV * const errsv = ERRSV;
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SvGETMAGIC(errsv);
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if (SvROK(errsv)) {
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exsv = errsv;
|
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if (sv_isobject(exsv)) {
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HV * const stash = SvSTASH(SvRV(exsv));
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GV * const gv = gv_fetchmethod(stash, "PROPAGATE");
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if (gv) {
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SV * const file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
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SV * const line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
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EXTEND(SP, 3);
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PUSHMARK(SP);
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PUSHs(exsv);
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PUSHs(file);
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PUSHs(line);
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PUTBACK;
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call_sv(MUTABLE_SV(GvCV(gv)),
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G_SCALAR|G_EVAL|G_KEEPERR);
|
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exsv = sv_mortalcopy(*PL_stack_sp--);
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}
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}
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}
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else if (SvPOK(errsv) && SvCUR(errsv)) {
|
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exsv = sv_mortalcopy(errsv);
|
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sv_catpvs(exsv, "\t...propagated");
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|
}
|
|
else {
|
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exsv = newSVpvs_flags("Died", SVs_TEMP);
|
|
}
|
|
}
|
|
die_sv(exsv);
|
|
NOT_REACHED; /* NOTREACHED */
|
|
return NULL; /* avoid missing return from non-void function warning */
|
|
}
|
|
|
|
/* I/O. */
|
|
|
|
OP *
|
|
Perl_tied_method(pTHX_ SV *methname, SV **sp, SV *const sv,
|
|
const MAGIC *const mg, const U32 flags, U32 argc, ...)
|
|
{
|
|
SV **orig_sp = sp;
|
|
I32 ret_args;
|
|
SSize_t extend_size;
|
|
|
|
PERL_ARGS_ASSERT_TIED_METHOD;
|
|
|
|
/* Ensure that our flag bits do not overlap. */
|
|
STATIC_ASSERT_STMT((TIED_METHOD_MORTALIZE_NOT_NEEDED & G_WANT) == 0);
|
|
STATIC_ASSERT_STMT((TIED_METHOD_ARGUMENTS_ON_STACK & G_WANT) == 0);
|
|
STATIC_ASSERT_STMT((TIED_METHOD_SAY & G_WANT) == 0);
|
|
|
|
PUTBACK; /* sp is at *foot* of args, so this pops args from old stack */
|
|
PUSHSTACKi(PERLSI_MAGIC);
|
|
/* extend for object + args. If argc might wrap/truncate when cast
|
|
* to SSize_t and incremented, set to -1, which will trigger a panic in
|
|
* EXTEND().
|
|
* The weird way this is written is because g++ is dumb enough to
|
|
* warn "comparison is always false" on something like:
|
|
*
|
|
* sizeof(a) >= sizeof(b) && a >= B_t_MAX -1
|
|
*
|
|
* (where the LH condition is false)
|
|
*/
|
|
extend_size =
|
|
(argc > (sizeof(argc) >= sizeof(SSize_t) ? SSize_t_MAX - 1 : argc))
|
|
? -1 : (SSize_t)argc + 1;
|
|
EXTEND(SP, extend_size);
|
|
PUSHMARK(sp);
|
|
PUSHs(SvTIED_obj(sv, mg));
|
|
if (flags & TIED_METHOD_ARGUMENTS_ON_STACK) {
|
|
Copy(orig_sp + 2, sp + 1, argc, SV*); /* copy args to new stack */
|
|
sp += argc;
|
|
}
|
|
else if (argc) {
|
|
const U32 mortalize_not_needed
|
|
= flags & TIED_METHOD_MORTALIZE_NOT_NEEDED;
|
|
va_list args;
|
|
va_start(args, argc);
|
|
do {
|
|
SV *const arg = va_arg(args, SV *);
|
|
if(mortalize_not_needed)
|
|
PUSHs(arg);
|
|
else
|
|
mPUSHs(arg);
|
|
} while (--argc);
|
|
va_end(args);
|
|
}
|
|
|
|
PUTBACK;
|
|
ENTER_with_name("call_tied_method");
|
|
if (flags & TIED_METHOD_SAY) {
|
|
/* local $\ = "\n" */
|
|
SAVEGENERICSV(PL_ors_sv);
|
|
PL_ors_sv = newSVpvs("\n");
|
|
}
|
|
ret_args = call_sv(methname, (flags & G_WANT)|G_METHOD_NAMED);
|
|
SPAGAIN;
|
|
orig_sp = sp;
|
|
POPSTACK;
|
|
SPAGAIN;
|
|
if (ret_args) { /* copy results back to original stack */
|
|
EXTEND(sp, ret_args);
|
|
Copy(orig_sp - ret_args + 1, sp + 1, ret_args, SV*);
|
|
sp += ret_args;
|
|
PUTBACK;
|
|
}
|
|
LEAVE_with_name("call_tied_method");
|
|
return NORMAL;
|
|
}
|
|
|
|
#define tied_method0(a,b,c,d) \
|
|
Perl_tied_method(aTHX_ a,b,c,d,G_SCALAR,0)
|
|
#define tied_method1(a,b,c,d,e) \
|
|
Perl_tied_method(aTHX_ a,b,c,d,G_SCALAR,1,e)
|
|
#define tied_method2(a,b,c,d,e,f) \
|
|
Perl_tied_method(aTHX_ a,b,c,d,G_SCALAR,2,e,f)
|
|
|
|
PP(pp_open)
|
|
{
|
|
dSP;
|
|
dMARK; dORIGMARK;
|
|
dTARGET;
|
|
SV *sv;
|
|
IO *io;
|
|
const char *tmps;
|
|
STRLEN len;
|
|
bool ok;
|
|
|
|
GV * const gv = MUTABLE_GV(*++MARK);
|
|
|
|
if (!isGV(gv) && !(SvTYPE(gv) == SVt_PVLV && isGV_with_GP(gv)))
|
|
DIE(aTHX_ PL_no_usym, "filehandle");
|
|
|
|
if ((io = GvIOp(gv))) {
|
|
const MAGIC *mg;
|
|
IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
|
|
|
|
if (IoDIRP(io))
|
|
Perl_croak(aTHX_ "Cannot open %" HEKf " as a filehandle: it is already open as a dirhandle",
|
|
HEKfARG(GvENAME_HEK(gv)));
|
|
|
|
mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
|
|
if (mg) {
|
|
/* Method's args are same as ours ... */
|
|
/* ... except handle is replaced by the object */
|
|
return Perl_tied_method(aTHX_ SV_CONST(OPEN), mark - 1, MUTABLE_SV(io), mg,
|
|
G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
|
|
sp - mark);
|
|
}
|
|
}
|
|
|
|
if (MARK < SP) {
|
|
sv = *++MARK;
|
|
}
|
|
else {
|
|
sv = GvSVn(gv);
|
|
}
|
|
|
|
tmps = SvPV_const(sv, len);
|
|
ok = do_open6(gv, tmps, len, NULL, MARK+1, (SP-MARK));
|
|
SP = ORIGMARK;
|
|
if (ok)
|
|
PUSHi( (I32)PL_forkprocess );
|
|
else if (PL_forkprocess == 0) /* we are a new child */
|
|
PUSHs(&PL_sv_zero);
|
|
else
|
|
RETPUSHUNDEF;
|
|
RETURN;
|
|
}
|
|
|
|
PP(pp_close)
|
|
{
|
|
dSP;
|
|
/* pp_coreargs pushes a NULL to indicate no args passed to
|
|
* CORE::close() */
|
|
GV * const gv =
|
|
MAXARG == 0 || (!TOPs && !POPs) ? PL_defoutgv : MUTABLE_GV(POPs);
|
|
|
|
if (MAXARG == 0)
|
|
EXTEND(SP, 1);
|
|
|
|
if (gv) {
|
|
IO * const io = GvIO(gv);
|
|
if (io) {
|
|
const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
|
|
if (mg) {
|
|
return tied_method0(SV_CONST(CLOSE), SP, MUTABLE_SV(io), mg);
|
|
}
|
|
}
|
|
}
|
|
PUSHs(boolSV(do_close(gv, TRUE)));
|
|
RETURN;
|
|
}
|
|
|
|
PP(pp_pipe_op)
|
|
{
|
|
#ifdef HAS_PIPE
|
|
dSP;
|
|
IO *rstio;
|
|
IO *wstio;
|
|
int fd[2];
|
|
|
|
GV * const wgv = MUTABLE_GV(POPs);
|
|
GV * const rgv = MUTABLE_GV(POPs);
|
|
|
|
rstio = GvIOn(rgv);
|
|
if (IoIFP(rstio))
|
|
do_close(rgv, FALSE);
|
|
|
|
wstio = GvIOn(wgv);
|
|
if (IoIFP(wstio))
|
|
do_close(wgv, FALSE);
|
|
|
|
if (PerlProc_pipe_cloexec(fd) < 0)
|
|
goto badexit;
|
|
|
|
IoIFP(rstio) = PerlIO_fdopen(fd[0], "r" PIPE_OPEN_MODE);
|
|
IoOFP(wstio) = PerlIO_fdopen(fd[1], "w" PIPE_OPEN_MODE);
|
|
IoOFP(rstio) = IoIFP(rstio);
|
|
IoIFP(wstio) = IoOFP(wstio);
|
|
IoTYPE(rstio) = IoTYPE_RDONLY;
|
|
IoTYPE(wstio) = IoTYPE_WRONLY;
|
|
|
|
if (!IoIFP(rstio) || !IoOFP(wstio)) {
|
|
if (IoIFP(rstio))
|
|
PerlIO_close(IoIFP(rstio));
|
|
else
|
|
PerlLIO_close(fd[0]);
|
|
if (IoOFP(wstio))
|
|
PerlIO_close(IoOFP(wstio));
|
|
else
|
|
PerlLIO_close(fd[1]);
|
|
goto badexit;
|
|
}
|
|
RETPUSHYES;
|
|
|
|
badexit:
|
|
RETPUSHUNDEF;
|
|
#else
|
|
DIE(aTHX_ PL_no_func, "pipe");
|
|
#endif
|
|
}
|
|
|
|
PP(pp_fileno)
|
|
{
|
|
dSP; dTARGET;
|
|
GV *gv;
|
|
IO *io;
|
|
PerlIO *fp;
|
|
const MAGIC *mg;
|
|
|
|
if (MAXARG < 1)
|
|
RETPUSHUNDEF;
|
|
gv = MUTABLE_GV(POPs);
|
|
io = GvIO(gv);
|
|
|
|
if (io
|
|
&& (mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar)))
|
|
{
|
|
return tied_method0(SV_CONST(FILENO), SP, MUTABLE_SV(io), mg);
|
|
}
|
|
|
|
if (io && IoDIRP(io)) {
|
|
#if defined(HAS_DIRFD) || defined(HAS_DIR_DD_FD)
|
|
PUSHi(my_dirfd(IoDIRP(io)));
|
|
RETURN;
|
|
#elif defined(ENOTSUP)
|
|
errno = ENOTSUP; /* Operation not supported */
|
|
RETPUSHUNDEF;
|
|
#elif defined(EOPNOTSUPP)
|
|
errno = EOPNOTSUPP; /* Operation not supported on socket */
|
|
RETPUSHUNDEF;
|
|
#else
|
|
errno = EINVAL; /* Invalid argument */
|
|
RETPUSHUNDEF;
|
|
#endif
|
|
}
|
|
|
|
if (!io || !(fp = IoIFP(io))) {
|
|
/* Can't do this because people seem to do things like
|
|
defined(fileno($foo)) to check whether $foo is a valid fh.
|
|
|
|
report_evil_fh(gv);
|
|
*/
|
|
RETPUSHUNDEF;
|
|
}
|
|
|
|
PUSHi(PerlIO_fileno(fp));
|
|
RETURN;
|
|
}
|
|
|
|
PP(pp_umask)
|
|
{
|
|
dSP;
|
|
#ifdef HAS_UMASK
|
|
dTARGET;
|
|
Mode_t anum;
|
|
|
|
if (MAXARG < 1 || (!TOPs && !POPs)) {
|
|
anum = PerlLIO_umask(022);
|
|
/* setting it to 022 between the two calls to umask avoids
|
|
* to have a window where the umask is set to 0 -- meaning
|
|
* that another thread could create world-writeable files. */
|
|
if (anum != 022)
|
|
(void)PerlLIO_umask(anum);
|
|
}
|
|
else
|
|
anum = PerlLIO_umask(POPi);
|
|
TAINT_PROPER("umask");
|
|
XPUSHi(anum);
|
|
#else
|
|
/* Only DIE if trying to restrict permissions on "user" (self).
|
|
* Otherwise it's harmless and more useful to just return undef
|
|
* since 'group' and 'other' concepts probably don't exist here. */
|
|
if (MAXARG >= 1 && (TOPs||POPs) && (POPi & 0700))
|
|
DIE(aTHX_ "umask not implemented");
|
|
XPUSHs(&PL_sv_undef);
|
|
#endif
|
|
RETURN;
|
|
}
|
|
|
|
PP(pp_binmode)
|
|
{
|
|
dSP;
|
|
GV *gv;
|
|
IO *io;
|
|
PerlIO *fp;
|
|
SV *discp = NULL;
|
|
|
|
if (MAXARG < 1)
|
|
RETPUSHUNDEF;
|
|
if (MAXARG > 1) {
|
|
discp = POPs;
|
|
}
|
|
|
|
gv = MUTABLE_GV(POPs);
|
|
io = GvIO(gv);
|
|
|
|
if (io) {
|
|
const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
|
|
if (mg) {
|
|
/* This takes advantage of the implementation of the varargs
|
|
function, which I don't think that the optimiser will be able to
|
|
figure out. Although, as it's a static function, in theory it
|
|
could. */
|
|
return Perl_tied_method(aTHX_ SV_CONST(BINMODE), SP, MUTABLE_SV(io), mg,
|
|
G_SCALAR|TIED_METHOD_MORTALIZE_NOT_NEEDED,
|
|
discp ? 1 : 0, discp);
|
|
}
|
|
}
|
|
|
|
if (!io || !(fp = IoIFP(io))) {
|
|
report_evil_fh(gv);
|
|
SETERRNO(EBADF,RMS_IFI);
|
|
RETPUSHUNDEF;
|
|
}
|
|
|
|
PUTBACK;
|
|
{
|
|
STRLEN len = 0;
|
|
const char *d = NULL;
|
|
int mode;
|
|
if (discp)
|
|
d = SvPV_const(discp, len);
|
|
mode = mode_from_discipline(d, len);
|
|
if (PerlIO_binmode(aTHX_ fp, IoTYPE(io), mode, d)) {
|
|
if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
|
|
if (!PerlIO_binmode(aTHX_ IoOFP(io), IoTYPE(io), mode, d)) {
|
|
SPAGAIN;
|
|
RETPUSHUNDEF;
|
|
}
|
|
}
|
|
SPAGAIN;
|
|
RETPUSHYES;
|
|
}
|
|
else {
|
|
SPAGAIN;
|
|
RETPUSHUNDEF;
|
|
}
|
|
}
|
|
}
|
|
|
|
PP(pp_tie)
|
|
{
|
|
dSP; dMARK;
|
|
HV* stash;
|
|
GV *gv = NULL;
|
|
SV *sv;
|
|
const I32 markoff = MARK - PL_stack_base;
|
|
const char *methname;
|
|
int how = PERL_MAGIC_tied;
|
|
U32 items;
|
|
SV *varsv = *++MARK;
|
|
|
|
switch(SvTYPE(varsv)) {
|
|
case SVt_PVHV:
|
|
{
|
|
HE *entry;
|
|
methname = "TIEHASH";
|
|
if (HvLAZYDEL(varsv) && (entry = HvEITER((HV *)varsv))) {
|
|
HvLAZYDEL_off(varsv);
|
|
hv_free_ent((HV *)varsv, entry);
|
|
}
|
|
HvEITER_set(MUTABLE_HV(varsv), 0);
|
|
break;
|
|
}
|
|
case SVt_PVAV:
|
|
methname = "TIEARRAY";
|
|
if (!AvREAL(varsv)) {
|
|
if (!AvREIFY(varsv))
|
|
Perl_croak(aTHX_ "Cannot tie unreifiable array");
|
|
av_clear((AV *)varsv);
|
|
AvREIFY_off(varsv);
|
|
AvREAL_on(varsv);
|
|
}
|
|
break;
|
|
case SVt_PVGV:
|
|
case SVt_PVLV:
|
|
if (isGV_with_GP(varsv) && !SvFAKE(varsv)) {
|
|
methname = "TIEHANDLE";
|
|
how = PERL_MAGIC_tiedscalar;
|
|
/* For tied filehandles, we apply tiedscalar magic to the IO
|
|
slot of the GP rather than the GV itself. AMS 20010812 */
|
|
if (!GvIOp(varsv))
|
|
GvIOp(varsv) = newIO();
|
|
varsv = MUTABLE_SV(GvIOp(varsv));
|
|
break;
|
|
}
|
|
if (SvTYPE(varsv) == SVt_PVLV && LvTYPE(varsv) == 'y') {
|
|
vivify_defelem(varsv);
|
|
varsv = LvTARG(varsv);
|
|
}
|
|
/* FALLTHROUGH */
|
|
default:
|
|
methname = "TIESCALAR";
|
|
how = PERL_MAGIC_tiedscalar;
|
|
break;
|
|
}
|
|
items = SP - MARK++;
|
|
if (sv_isobject(*MARK)) { /* Calls GET magic. */
|
|
ENTER_with_name("call_TIE");
|
|
PUSHSTACKi(PERLSI_MAGIC);
|
|
PUSHMARK(SP);
|
|
EXTEND(SP,(I32)items);
|
|
while (items--)
|
|
PUSHs(*MARK++);
|
|
PUTBACK;
|
|
call_method(methname, G_SCALAR);
|
|
}
|
|
else {
|
|
/* Can't use call_method here, else this: fileno FOO; tie @a, "FOO"
|
|
* will attempt to invoke IO::File::TIEARRAY, with (best case) the
|
|
* wrong error message, and worse case, supreme action at a distance.
|
|
* (Sorry obfuscation writers. You're not going to be given this one.)
|
|
*/
|
|
stash = gv_stashsv(*MARK, 0);
|
|
if (!stash) {
|
|
if (SvROK(*MARK))
|
|
DIE(aTHX_ "Can't locate object method \"%s\" via package \"%" SVf "\"",
|
|
methname, SVfARG(*MARK));
|
|
else if (isGV(*MARK)) {
|
|
/* If the glob doesn't name an existing package, using
|
|
* SVfARG(*MARK) would yield "*Foo::Bar" or *main::Foo. So
|
|
* generate the name for the error message explicitly. */
|
|
SV *stashname = sv_2mortal(newSV(0));
|
|
gv_fullname4(stashname, (GV *) *MARK, NULL, FALSE);
|
|
DIE(aTHX_ "Can't locate object method \"%s\" via package \"%" SVf "\"",
|
|
methname, SVfARG(stashname));
|
|
}
|
|
else {
|
|
SV *stashname = !SvPOK(*MARK) ? &PL_sv_no
|
|
: SvCUR(*MARK) ? *MARK
|
|
: sv_2mortal(newSVpvs("main"));
|
|
DIE(aTHX_ "Can't locate object method \"%s\" via package \"%" SVf "\""
|
|
" (perhaps you forgot to load \"%" SVf "\"?)",
|
|
methname, SVfARG(stashname), SVfARG(stashname));
|
|
}
|
|
}
|
|
else if (!(gv = gv_fetchmethod(stash, methname))) {
|
|
/* The effective name can only be NULL for stashes that have
|
|
* been deleted from the symbol table, which this one can't
|
|
* be, since we just looked it up by name.
|
|
*/
|
|
DIE(aTHX_ "Can't locate object method \"%s\" via package \"%" HEKf "\"",
|
|
methname, HvENAME_HEK_NN(stash));
|
|
}
|
|
ENTER_with_name("call_TIE");
|
|
PUSHSTACKi(PERLSI_MAGIC);
|
|
PUSHMARK(SP);
|
|
EXTEND(SP,(I32)items);
|
|
while (items--)
|
|
PUSHs(*MARK++);
|
|
PUTBACK;
|
|
call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR);
|
|
}
|
|
SPAGAIN;
|
|
|
|
sv = TOPs;
|
|
POPSTACK;
|
|
if (sv_isobject(sv)) {
|
|
sv_unmagic(varsv, how);
|
|
/* Croak if a self-tie on an aggregate is attempted. */
|
|
if (varsv == SvRV(sv) &&
|
|
(SvTYPE(varsv) == SVt_PVAV ||
|
|
SvTYPE(varsv) == SVt_PVHV))
|
|
Perl_croak(aTHX_
|
|
"Self-ties of arrays and hashes are not supported");
|
|
sv_magic(varsv, (SvRV(sv) == varsv ? NULL : sv), how, NULL, 0);
|
|
}
|
|
LEAVE_with_name("call_TIE");
|
|
SP = PL_stack_base + markoff;
|
|
PUSHs(sv);
|
|
RETURN;
|
|
}
|
|
|
|
|
|
/* also used for: pp_dbmclose() */
|
|
|
|
PP(pp_untie)
|
|
{
|
|
dSP;
|
|
MAGIC *mg;
|
|
SV *sv = POPs;
|
|
const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
|
|
? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
|
|
|
|
if (isGV_with_GP(sv) && !SvFAKE(sv) && !(sv = MUTABLE_SV(GvIOp(sv))))
|
|
RETPUSHYES;
|
|
|
|
if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y' &&
|
|
!(sv = defelem_target(sv, NULL))) RETPUSHUNDEF;
|
|
|
|
if ((mg = SvTIED_mg(sv, how))) {
|
|
SV * const obj = SvRV(SvTIED_obj(sv, mg));
|
|
if (obj && SvSTASH(obj)) {
|
|
GV * const gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE);
|
|
CV *cv;
|
|
if (gv && isGV(gv) && (cv = GvCV(gv))) {
|
|
PUSHMARK(SP);
|
|
PUSHs(SvTIED_obj(MUTABLE_SV(gv), mg));
|
|
mXPUSHi(SvREFCNT(obj) - 1);
|
|
PUTBACK;
|
|
ENTER_with_name("call_UNTIE");
|
|
call_sv(MUTABLE_SV(cv), G_VOID);
|
|
LEAVE_with_name("call_UNTIE");
|
|
SPAGAIN;
|
|
}
|
|
else if (mg && SvREFCNT(obj) > 1) {
|
|
Perl_ck_warner(aTHX_ packWARN(WARN_UNTIE),
|
|
"untie attempted while %" UVuf " inner references still exist",
|
|
(UV)SvREFCNT(obj) - 1 ) ;
|
|
}
|
|
}
|
|
}
|
|
sv_unmagic(sv, how) ;
|
|
RETPUSHYES;
|
|
}
|
|
|
|
PP(pp_tied)
|
|
{
|
|
dSP;
|
|
const MAGIC *mg;
|
|
dTOPss;
|
|
const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
|
|
? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
|
|
|
|
if (isGV_with_GP(sv) && !SvFAKE(sv) && !(sv = MUTABLE_SV(GvIOp(sv))))
|
|
goto ret_undef;
|
|
|
|
if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y' &&
|
|
!(sv = defelem_target(sv, NULL))) goto ret_undef;
|
|
|
|
if ((mg = SvTIED_mg(sv, how))) {
|
|
SETs(SvTIED_obj(sv, mg));
|
|
return NORMAL; /* PUTBACK not needed, pp_tied never moves SP */
|
|
}
|
|
ret_undef:
|
|
SETs(&PL_sv_undef);
|
|
return NORMAL;
|
|
}
|
|
|
|
PP(pp_dbmopen)
|
|
{
|
|
dSP;
|
|
dPOPPOPssrl;
|
|
HV* stash;
|
|
GV *gv = NULL;
|
|
|
|
HV * const hv = MUTABLE_HV(POPs);
|
|
SV * const sv = newSVpvs_flags("AnyDBM_File", SVs_TEMP);
|
|
stash = gv_stashsv(sv, 0);
|
|
if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
|
|
PUTBACK;
|
|
require_pv("AnyDBM_File.pm");
|
|
SPAGAIN;
|
|
if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH")))
|
|
DIE(aTHX_ "No dbm on this machine");
|
|
}
|
|
|
|
ENTER;
|
|
PUSHMARK(SP);
|
|
|
|
EXTEND(SP, 5);
|
|
PUSHs(sv);
|
|
PUSHs(left);
|
|
if (SvIV(right))
|
|
mPUSHu(O_RDWR|O_CREAT);
|
|
else
|
|
{
|
|
mPUSHu(O_RDWR);
|
|
if (!SvOK(right)) right = &PL_sv_no;
|
|
}
|
|
PUSHs(right);
|
|
PUTBACK;
|
|
call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR);
|
|
SPAGAIN;
|
|
|
|
if (!sv_isobject(TOPs)) {
|
|
SP--;
|
|
PUSHMARK(SP);
|
|
PUSHs(sv);
|
|
PUSHs(left);
|
|
mPUSHu(O_RDONLY);
|
|
PUSHs(right);
|
|
PUTBACK;
|
|
call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR);
|
|
SPAGAIN;
|
|
if (sv_isobject(TOPs))
|
|
goto retie;
|
|
}
|
|
else {
|
|
retie:
|
|
sv_unmagic(MUTABLE_SV(hv), PERL_MAGIC_tied);
|
|
sv_magic(MUTABLE_SV(hv), TOPs, PERL_MAGIC_tied, NULL, 0);
|
|
}
|
|
LEAVE;
|
|
RETURN;
|
|
}
|
|
|
|
PP(pp_sselect)
|
|
{
|
|
#ifdef HAS_SELECT
|
|
dSP; dTARGET;
|
|
I32 i;
|
|
I32 j;
|
|
char *s;
|
|
SV *sv;
|
|
NV value;
|
|
I32 maxlen = 0;
|
|
I32 nfound;
|
|
struct timeval timebuf;
|
|
struct timeval *tbuf = &timebuf;
|
|
I32 growsize;
|
|
char *fd_sets[4];
|
|
SV *svs[4];
|
|
#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
|
|
I32 masksize;
|
|
I32 offset;
|
|
I32 k;
|
|
|
|
# if BYTEORDER & 0xf0000
|
|
# define ORDERBYTE (0x88888888 - BYTEORDER)
|
|
# else
|
|
# define ORDERBYTE (0x4444 - BYTEORDER)
|
|
# endif
|
|
|
|
#endif
|
|
|
|
SP -= 4;
|
|
for (i = 1; i <= 3; i++) {
|
|
SV * const sv = svs[i] = SP[i];
|
|
SvGETMAGIC(sv);
|
|
if (!SvOK(sv))
|
|
continue;
|
|
if (SvREADONLY(sv)) {
|
|
if (!(SvPOK(sv) && SvCUR(sv) == 0))
|
|
Perl_croak_no_modify();
|
|
}
|
|
else if (SvIsCOW(sv)) sv_force_normal_flags(sv, 0);
|
|
if (!SvPOK(sv)) {
|
|
if (!SvPOKp(sv))
|
|
Perl_ck_warner(aTHX_ packWARN(WARN_MISC),
|
|
"Non-string passed as bitmask");
|
|
if (SvGAMAGIC(sv)) {
|
|
svs[i] = sv_newmortal();
|
|
sv_copypv_nomg(svs[i], sv);
|
|
}
|
|
else
|
|
SvPV_force_nomg_nolen(sv); /* force string conversion */
|
|
}
|
|
j = SvCUR(svs[i]);
|
|
if (maxlen < j)
|
|
maxlen = j;
|
|
}
|
|
|
|
/* little endians can use vecs directly */
|
|
#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
|
|
# ifdef NFDBITS
|
|
|
|
# ifndef NBBY
|
|
# define NBBY 8
|
|
# endif
|
|
|
|
masksize = NFDBITS / NBBY;
|
|
# else
|
|
masksize = sizeof(long); /* documented int, everyone seems to use long */
|
|
# endif
|
|
Zero(&fd_sets[0], 4, char*);
|
|
#endif
|
|
|
|
# if SELECT_MIN_BITS == 1
|
|
growsize = sizeof(fd_set);
|
|
# else
|
|
# if defined(__GLIBC__) && defined(__FD_SETSIZE)
|
|
# undef SELECT_MIN_BITS
|
|
# define SELECT_MIN_BITS __FD_SETSIZE
|
|
# endif
|
|
/* If SELECT_MIN_BITS is greater than one we most probably will want
|
|
* to align the sizes with SELECT_MIN_BITS/8 because for example
|
|
* in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
|
|
* UNIX, Solaris, Darwin) the smallest quantum select() operates
|
|
* on (sets/tests/clears bits) is 32 bits. */
|
|
growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
|
|
# endif
|
|
|
|
sv = SP[4];
|
|
SvGETMAGIC(sv);
|
|
if (SvOK(sv)) {
|
|
value = SvNV_nomg(sv);
|
|
if (value < 0.0)
|
|
value = 0.0;
|
|
timebuf.tv_sec = (long)value;
|
|
value -= (NV)timebuf.tv_sec;
|
|
timebuf.tv_usec = (long)(value * 1000000.0);
|
|
}
|
|
else
|
|
tbuf = NULL;
|
|
|
|
for (i = 1; i <= 3; i++) {
|
|
sv = svs[i];
|
|
if (!SvOK(sv) || SvCUR(sv) == 0) {
|
|
fd_sets[i] = 0;
|
|
continue;
|
|
}
|
|
assert(SvPOK(sv));
|
|
j = SvLEN(sv);
|
|
if (j < growsize) {
|
|
Sv_Grow(sv, growsize);
|
|
}
|
|
j = SvCUR(sv);
|
|
s = SvPVX(sv) + j;
|
|
while (++j <= growsize) {
|
|
*s++ = '\0';
|
|
}
|
|
|
|
#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
|
|
s = SvPVX(sv);
|
|
Newx(fd_sets[i], growsize, char);
|
|
for (offset = 0; offset < growsize; offset += masksize) {
|
|
for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
|
|
fd_sets[i][j+offset] = s[(k % masksize) + offset];
|
|
}
|
|
#else
|
|
fd_sets[i] = SvPVX(sv);
|
|
#endif
|
|
}
|
|
|
|
#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
|
|
/* Can't make just the (void*) conditional because that would be
|
|
* cpp #if within cpp macro, and not all compilers like that. */
|
|
nfound = PerlSock_select(
|
|
maxlen * 8,
|
|
(Select_fd_set_t) fd_sets[1],
|
|
(Select_fd_set_t) fd_sets[2],
|
|
(Select_fd_set_t) fd_sets[3],
|
|
(void*) tbuf); /* Workaround for compiler bug. */
|
|
#else
|
|
nfound = PerlSock_select(
|
|
maxlen * 8,
|
|
(Select_fd_set_t) fd_sets[1],
|
|
(Select_fd_set_t) fd_sets[2],
|
|
(Select_fd_set_t) fd_sets[3],
|
|
tbuf);
|
|
#endif
|
|
for (i = 1; i <= 3; i++) {
|
|
if (fd_sets[i]) {
|
|
sv = svs[i];
|
|
#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
|
|
s = SvPVX(sv);
|
|
for (offset = 0; offset < growsize; offset += masksize) {
|
|
for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
|
|
s[(k % masksize) + offset] = fd_sets[i][j+offset];
|
|
}
|
|
Safefree(fd_sets[i]);
|
|
#endif
|
|
if (sv != SP[i])
|
|
SvSetMagicSV(SP[i], sv);
|
|
else
|
|
SvSETMAGIC(sv);
|
|
}
|
|
}
|
|
|
|
PUSHi(nfound);
|
|
if (GIMME_V == G_ARRAY && tbuf) {
|
|
value = (NV)(timebuf.tv_sec) +
|
|
(NV)(timebuf.tv_usec) / 1000000.0;
|
|
mPUSHn(value);
|
|
}
|
|
RETURN;
|
|
#else
|
|
DIE(aTHX_ "select not implemented");
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
|
|
=head1 GV Functions
|
|
|
|
=for apidoc setdefout
|
|
|
|
Sets C<PL_defoutgv>, the default file handle for output, to the passed in
|
|
typeglob. As C<PL_defoutgv> "owns" a reference on its typeglob, the reference
|
|
count of the passed in typeglob is increased by one, and the reference count
|
|
of the typeglob that C<PL_defoutgv> points to is decreased by one.
|
|
|
|
=cut
|
|
*/
|
|
|
|
void
|
|
Perl_setdefout(pTHX_ GV *gv)
|
|
{
|
|
GV *oldgv = PL_defoutgv;
|
|
|
|
PERL_ARGS_ASSERT_SETDEFOUT;
|
|
|
|
SvREFCNT_inc_simple_void_NN(gv);
|
|
PL_defoutgv = gv;
|
|
SvREFCNT_dec(oldgv);
|
|
}
|
|
|
|
PP(pp_select)
|
|
{
|
|
dSP; dTARGET;
|
|
HV *hv;
|
|
GV * const newdefout = (PL_op->op_private > 0) ? (MUTABLE_GV(POPs)) : NULL;
|
|
GV * egv = GvEGVx(PL_defoutgv);
|
|
GV * const *gvp;
|
|
|
|
if (!egv)
|
|
egv = PL_defoutgv;
|
|
hv = isGV_with_GP(egv) ? GvSTASH(egv) : NULL;
|
|
gvp = hv && HvENAME(hv)
|
|
? (GV**)hv_fetch(hv, GvNAME(egv), HEK_UTF8(GvNAME_HEK(egv)) ? -GvNAMELEN(egv) : GvNAMELEN(egv), FALSE)
|
|
: NULL;
|
|
if (gvp && *gvp == egv) {
|
|
gv_efullname4(TARG, PL_defoutgv, NULL, TRUE);
|
|
XPUSHTARG;
|
|
}
|
|
else {
|
|
mXPUSHs(newRV(MUTABLE_SV(egv)));
|
|
}
|
|
|
|
if (newdefout) {
|
|
if (!GvIO(newdefout))
|
|
gv_IOadd(newdefout);
|
|
setdefout(newdefout);
|
|
}
|
|
|
|
RETURN;
|
|
}
|
|
|
|
PP(pp_getc)
|
|
{
|
|
dSP; dTARGET;
|
|
/* pp_coreargs pushes a NULL to indicate no args passed to
|
|
* CORE::getc() */
|
|
GV * const gv =
|
|
MAXARG==0 || (!TOPs && !POPs) ? PL_stdingv : MUTABLE_GV(POPs);
|
|
IO *const io = GvIO(gv);
|
|
|
|
if (MAXARG == 0)
|
|
EXTEND(SP, 1);
|
|
|
|
if (io) {
|
|
const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
|
|
if (mg) {
|
|
const U8 gimme = GIMME_V;
|
|
Perl_tied_method(aTHX_ SV_CONST(GETC), SP, MUTABLE_SV(io), mg, gimme, 0);
|
|
if (gimme == G_SCALAR) {
|
|
SPAGAIN;
|
|
SvSetMagicSV_nosteal(TARG, TOPs);
|
|
}
|
|
return NORMAL;
|
|
}
|
|
}
|
|
if (!gv || do_eof(gv)) { /* make sure we have fp with something */
|
|
if (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY))
|
|
report_evil_fh(gv);
|
|
SETERRNO(EBADF,RMS_IFI);
|
|
RETPUSHUNDEF;
|
|
}
|
|
TAINT;
|
|
sv_setpvs(TARG, " ");
|
|
*SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
|
|
if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
|
|
/* Find out how many bytes the char needs */
|
|
Size_t len = UTF8SKIP(SvPVX_const(TARG));
|
|
if (len > 1) {
|
|
SvGROW(TARG,len+1);
|
|
len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
|
|
SvCUR_set(TARG,1+len);
|
|
}
|
|
SvUTF8_on(TARG);
|
|
}
|
|
else SvUTF8_off(TARG);
|
|
PUSHTARG;
|
|
RETURN;
|
|
}
|
|
|
|
STATIC OP *
|
|
S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
|
|
{
|
|
PERL_CONTEXT *cx;
|
|
const U8 gimme = GIMME_V;
|
|
|
|
PERL_ARGS_ASSERT_DOFORM;
|
|
|
|
if (CvCLONE(cv))
|
|
cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv))));
|
|
|
|
cx = cx_pushblock(CXt_FORMAT, gimme, PL_stack_sp, PL_savestack_ix);
|
|
cx_pushformat(cx, cv, retop, gv);
|
|
if (CvDEPTH(cv) >= 2)
|
|
pad_push(CvPADLIST(cv), CvDEPTH(cv));
|
|
PAD_SET_CUR_NOSAVE(CvPADLIST(cv), CvDEPTH(cv));
|
|
|
|
setdefout(gv); /* locally select filehandle so $% et al work */
|
|
return CvSTART(cv);
|
|
}
|
|
|
|
PP(pp_enterwrite)
|
|
{
|
|
dSP;
|
|
GV *gv;
|
|
IO *io;
|
|
GV *fgv;
|
|
CV *cv = NULL;
|
|
|
|
if (MAXARG == 0) {
|
|
EXTEND(SP, 1);
|
|
gv = PL_defoutgv;
|
|
}
|
|
else {
|
|
gv = MUTABLE_GV(POPs);
|
|
if (!gv)
|
|
gv = PL_defoutgv;
|
|
}
|
|
io = GvIO(gv);
|
|
if (!io) {
|
|
RETPUSHNO;
|
|
}
|
|
if (IoFMT_GV(io))
|
|
fgv = IoFMT_GV(io);
|
|
else
|
|
fgv = gv;
|
|
|
|
assert(fgv);
|
|
|
|
cv = GvFORM(fgv);
|
|
if (!cv) {
|
|
SV * const tmpsv = sv_newmortal();
|
|
gv_efullname4(tmpsv, fgv, NULL, FALSE);
|
|
DIE(aTHX_ "Undefined format \"%" SVf "\" called", SVfARG(tmpsv));
|
|
}
|
|
IoFLAGS(io) &= ~IOf_DIDTOP;
|
|
RETURNOP(doform(cv,gv,PL_op->op_next));
|
|
}
|
|
|
|
PP(pp_leavewrite)
|
|
{
|
|
dSP;
|
|
GV * const gv = CX_CUR()->blk_format.gv;
|
|
IO * const io = GvIOp(gv);
|
|
PerlIO *ofp;
|
|
PerlIO *fp;
|
|
PERL_CONTEXT *cx;
|
|
OP *retop;
|
|
bool is_return = cBOOL(PL_op->op_type == OP_RETURN);
|
|
|
|
if (is_return || !io || !(ofp = IoOFP(io)))
|
|
goto forget_top;
|
|
|
|
DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
|
|
(long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
|
|
|
|
if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
|
|
PL_formtarget != PL_toptarget)
|
|
{
|
|
GV *fgv;
|
|
CV *cv;
|
|
if (!IoTOP_GV(io)) {
|
|
GV *topgv;
|
|
|
|
if (!IoTOP_NAME(io)) {
|
|
SV *topname;
|
|
if (!IoFMT_NAME(io))
|
|
IoFMT_NAME(io) = savepv(GvNAME(gv));
|
|
topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%" HEKf "_TOP",
|
|
HEKfARG(GvNAME_HEK(gv))));
|
|
topgv = gv_fetchsv(topname, 0, SVt_PVFM);
|
|
if ((topgv && GvFORM(topgv)) ||
|
|
!gv_fetchpvs("top", GV_NOTQUAL, SVt_PVFM))
|
|
IoTOP_NAME(io) = savesvpv(topname);
|
|
else
|
|
IoTOP_NAME(io) = savepvs("top");
|
|
}
|
|
topgv = gv_fetchpv(IoTOP_NAME(io), 0, SVt_PVFM);
|
|
if (!topgv || !GvFORM(topgv)) {
|
|
IoLINES_LEFT(io) = IoPAGE_LEN(io);
|
|
goto forget_top;
|
|
}
|
|
IoTOP_GV(io) = topgv;
|
|
}
|
|
if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
|
|
I32 lines = IoLINES_LEFT(io);
|
|
const char *s = SvPVX_const(PL_formtarget);
|
|
const char *e = SvEND(PL_formtarget);
|
|
if (lines <= 0) /* Yow, header didn't even fit!!! */
|
|
goto forget_top;
|
|
while (lines-- > 0) {
|
|
s = (char *) memchr(s, '\n', e - s);
|
|
if (!s)
|
|
break;
|
|
s++;
|
|
}
|
|
if (s) {
|
|
const STRLEN save = SvCUR(PL_formtarget);
|
|
SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
|
|
do_print(PL_formtarget, ofp);
|
|
SvCUR_set(PL_formtarget, save);
|
|
sv_chop(PL_formtarget, s);
|
|
FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
|
|
}
|
|
}
|
|
if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
|
|
do_print(GvSV(gv_fetchpvs("\f", GV_ADD, SVt_PV)), ofp);
|
|
IoLINES_LEFT(io) = IoPAGE_LEN(io);
|
|
IoPAGE(io)++;
|
|
PL_formtarget = PL_toptarget;
|
|
IoFLAGS(io) |= IOf_DIDTOP;
|
|
fgv = IoTOP_GV(io);
|
|
assert(fgv); /* IoTOP_GV(io) should have been set above */
|
|
cv = GvFORM(fgv);
|
|
if (!cv) {
|
|
SV * const sv = sv_newmortal();
|
|
gv_efullname4(sv, fgv, NULL, FALSE);
|
|
DIE(aTHX_ "Undefined top format \"%" SVf "\" called", SVfARG(sv));
|
|
}
|
|
return doform(cv, gv, PL_op);
|
|
}
|
|
|
|
forget_top:
|
|
cx = CX_CUR();
|
|
assert(CxTYPE(cx) == CXt_FORMAT);
|
|
SP = PL_stack_base + cx->blk_oldsp; /* ignore retval of formline */
|
|
CX_LEAVE_SCOPE(cx);
|
|
cx_popformat(cx);
|
|
cx_popblock(cx);
|
|
retop = cx->blk_sub.retop;
|
|
CX_POP(cx);
|
|
|
|
EXTEND(SP, 1);
|
|
|
|
if (is_return)
|
|
/* XXX the semantics of doing 'return' in a format aren't documented.
|
|
* Currently we ignore any args to 'return' and just return
|
|
* a single undef in both scalar and list contexts
|
|
*/
|
|
PUSHs(&PL_sv_undef);
|
|
else if (!io || !(fp = IoOFP(io))) {
|
|
if (io && IoIFP(io))
|
|
report_wrongway_fh(gv, '<');
|
|
else
|
|
report_evil_fh(gv);
|
|
PUSHs(&PL_sv_no);
|
|
}
|
|
else {
|
|
if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
|
|
Perl_ck_warner(aTHX_ packWARN(WARN_IO), "page overflow");
|
|
}
|
|
if (!do_print(PL_formtarget, fp))
|
|
PUSHs(&PL_sv_no);
|
|
else {
|
|
FmLINES(PL_formtarget) = 0;
|
|
SvCUR_set(PL_formtarget, 0);
|
|
*SvEND(PL_formtarget) = '\0';
|
|
if (IoFLAGS(io) & IOf_FLUSH)
|
|
(void)PerlIO_flush(fp);
|
|
PUSHs(&PL_sv_yes);
|
|
}
|
|
}
|
|
PL_formtarget = PL_bodytarget;
|
|
RETURNOP(retop);
|
|
}
|
|
|
|
PP(pp_prtf)
|
|
{
|
|
dSP; dMARK; dORIGMARK;
|
|
PerlIO *fp;
|
|
|
|
GV * const gv
|
|
= (PL_op->op_flags & OPf_STACKED) ? MUTABLE_GV(*++MARK) : PL_defoutgv;
|
|
IO *const io = GvIO(gv);
|
|
|
|
/* Treat empty list as "" */
|
|
if (MARK == SP) XPUSHs(&PL_sv_no);
|
|
|
|
if (io) {
|
|
const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
|
|
if (mg) {
|
|
if (MARK == ORIGMARK) {
|
|
MEXTEND(SP, 1);
|
|
++MARK;
|
|
Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
|
|
++SP;
|
|
}
|
|
return Perl_tied_method(aTHX_ SV_CONST(PRINTF), mark - 1, MUTABLE_SV(io),
|
|
mg,
|
|
G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
|
|
sp - mark);
|
|
}
|
|
}
|
|
|
|
if (!io) {
|
|
report_evil_fh(gv);
|
|
SETERRNO(EBADF,RMS_IFI);
|
|
goto just_say_no;
|
|
}
|
|
else if (!(fp = IoOFP(io))) {
|
|
if (IoIFP(io))
|
|
report_wrongway_fh(gv, '<');
|
|
else if (ckWARN(WARN_CLOSED))
|
|
report_evil_fh(gv);
|
|
SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
|
|
goto just_say_no;
|
|
}
|
|
else {
|
|
SV *sv = sv_newmortal();
|
|
do_sprintf(sv, SP - MARK, MARK + 1);
|
|
if (!do_print(sv, fp))
|
|
goto just_say_no;
|
|
|
|
if (IoFLAGS(io) & IOf_FLUSH)
|
|
if (PerlIO_flush(fp) == EOF)
|
|
goto just_say_no;
|
|
}
|
|
SP = ORIGMARK;
|
|
PUSHs(&PL_sv_yes);
|
|
RETURN;
|
|
|
|
just_say_no:
|
|
SP = ORIGMARK;
|
|
PUSHs(&PL_sv_undef);
|
|
RETURN;
|
|
}
|
|
|
|
PP(pp_sysopen)
|
|
{
|
|
dSP;
|
|
const int perm = (MAXARG > 3 && (TOPs || POPs)) ? POPi : 0666;
|
|
const int mode = POPi;
|
|
SV * const sv = POPs;
|
|
GV * const gv = MUTABLE_GV(POPs);
|
|
STRLEN len;
|
|
|
|
/* Need TIEHANDLE method ? */
|
|
const char * const tmps = SvPV_const(sv, len);
|
|
if (do_open_raw(gv, tmps, len, mode, perm, NULL)) {
|
|
IoLINES(GvIOp(gv)) = 0;
|
|
PUSHs(&PL_sv_yes);
|
|
}
|
|
else {
|
|
PUSHs(&PL_sv_undef);
|
|
}
|
|
RETURN;
|
|
}
|
|
|
|
|
|
/* also used for: pp_read() and pp_recv() (where supported) */
|
|
|
|
PP(pp_sysread)
|
|
{
|
|
dSP; dMARK; dORIGMARK; dTARGET;
|
|
SSize_t offset;
|
|
IO *io;
|
|
char *buffer;
|
|
STRLEN orig_size;
|
|
SSize_t length;
|
|
SSize_t count;
|
|
SV *bufsv;
|
|
STRLEN blen;
|
|
int fp_utf8;
|
|
int buffer_utf8;
|
|
SV *read_target;
|
|
Size_t got = 0;
|
|
Size_t wanted;
|
|
bool charstart = FALSE;
|
|
STRLEN charskip = 0;
|
|
STRLEN skip = 0;
|
|
GV * const gv = MUTABLE_GV(*++MARK);
|
|
int fd;
|
|
|
|
if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
|
|
&& gv && (io = GvIO(gv)) )
|
|
{
|
|
const MAGIC *const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
|
|
if (mg) {
|
|
return Perl_tied_method(aTHX_ SV_CONST(READ), mark - 1, MUTABLE_SV(io), mg,
|
|
G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
|
|
sp - mark);
|
|
}
|
|
}
|
|
|
|
if (!gv)
|
|
goto say_undef;
|
|
bufsv = *++MARK;
|
|
if (! SvOK(bufsv))
|
|
SvPVCLEAR(bufsv);
|
|
length = SvIVx(*++MARK);
|
|
if (length < 0)
|
|
DIE(aTHX_ "Negative length");
|
|
SETERRNO(0,0);
|
|
if (MARK < SP)
|
|
offset = SvIVx(*++MARK);
|
|
else
|
|
offset = 0;
|
|
io = GvIO(gv);
|
|
if (!io || !IoIFP(io)) {
|
|
report_evil_fh(gv);
|
|
SETERRNO(EBADF,RMS_IFI);
|
|
goto say_undef;
|
|
}
|
|
|
|
/* Note that fd can here validly be -1, don't check it yet. */
|
|
fd = PerlIO_fileno(IoIFP(io));
|
|
|
|
if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
|
|
if (PL_op->op_type == OP_SYSREAD || PL_op->op_type == OP_RECV) {
|
|
Perl_croak(aTHX_
|
|
"%s() isn't allowed on :utf8 handles",
|
|
OP_DESC(PL_op));
|
|
}
|
|
buffer = SvPVutf8_force(bufsv, blen);
|
|
/* UTF-8 may not have been set if they are all low bytes */
|
|
SvUTF8_on(bufsv);
|
|
buffer_utf8 = 0;
|
|
}
|
|
else {
|
|
buffer = SvPV_force(bufsv, blen);
|
|
buffer_utf8 = DO_UTF8(bufsv);
|
|
}
|
|
if (DO_UTF8(bufsv)) {
|
|
blen = sv_len_utf8_nomg(bufsv);
|
|
}
|
|
|
|
charstart = TRUE;
|
|
charskip = 0;
|
|
skip = 0;
|
|
wanted = length;
|
|
|
|
#ifdef HAS_SOCKET
|
|
if (PL_op->op_type == OP_RECV) {
|
|
Sock_size_t bufsize;
|
|
char namebuf[MAXPATHLEN];
|
|
if (fd < 0) {
|
|
SETERRNO(EBADF,SS_IVCHAN);
|
|
goto say_undef;
|
|
}
|
|
#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(__QNXNTO__)
|
|
bufsize = sizeof (struct sockaddr_in);
|
|
#else
|
|
bufsize = sizeof namebuf;
|
|
#endif
|
|
#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
|
|
if (bufsize >= 256)
|
|
bufsize = 255;
|
|
#endif
|
|
buffer = SvGROW(bufsv, (STRLEN)(length+1));
|
|
/* 'offset' means 'flags' here */
|
|
count = PerlSock_recvfrom(fd, buffer, length, offset,
|
|
(struct sockaddr *)namebuf, &bufsize);
|
|
if (count < 0)
|
|
goto say_undef;
|
|
/* MSG_TRUNC can give oversized count; quietly lose it */
|
|
if (count > length)
|
|
count = length;
|
|
SvCUR_set(bufsv, count);
|
|
*SvEND(bufsv) = '\0';
|
|
(void)SvPOK_only(bufsv);
|
|
if (fp_utf8)
|
|
SvUTF8_on(bufsv);
|
|
SvSETMAGIC(bufsv);
|
|
/* This should not be marked tainted if the fp is marked clean */
|
|
if (!(IoFLAGS(io) & IOf_UNTAINT))
|
|
SvTAINTED_on(bufsv);
|
|
SP = ORIGMARK;
|
|
#if defined(__CYGWIN__)
|
|
/* recvfrom() on cygwin doesn't set bufsize at all for
|
|
connected sockets, leaving us with trash in the returned
|
|
name, so use the same test as the Win32 code to check if it
|
|
wasn't set, and set it [perl #118843] */
|
|
if (bufsize == sizeof namebuf)
|
|
bufsize = 0;
|
|
#endif
|
|
sv_setpvn(TARG, namebuf, bufsize);
|
|
PUSHs(TARG);
|
|
RETURN;
|
|
}
|
|
#endif
|
|
if (offset < 0) {
|
|
if (-offset > (SSize_t)blen)
|
|
DIE(aTHX_ "Offset outside string");
|
|
offset += blen;
|
|
}
|
|
if (DO_UTF8(bufsv)) {
|
|
/* convert offset-as-chars to offset-as-bytes */
|
|
if (offset >= (SSize_t)blen)
|
|
offset += SvCUR(bufsv) - blen;
|
|
else
|
|
offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
|
|
}
|
|
|
|
more_bytes:
|
|
/* Reestablish the fd in case it shifted from underneath us. */
|
|
fd = PerlIO_fileno(IoIFP(io));
|
|
|
|
orig_size = SvCUR(bufsv);
|
|
/* Allocating length + offset + 1 isn't perfect in the case of reading
|
|
bytes from a byte file handle into a UTF8 buffer, but it won't harm us
|
|
unduly.
|
|
(should be 2 * length + offset + 1, or possibly something longer if
|
|
IN_ENCODING Is true) */
|
|
buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
|
|
if (offset > 0 && offset > (SSize_t)orig_size) { /* Zero any newly allocated space */
|
|
Zero(buffer+orig_size, offset-orig_size, char);
|
|
}
|
|
buffer = buffer + offset;
|
|
if (!buffer_utf8) {
|
|
read_target = bufsv;
|
|
} else {
|
|
/* Best to read the bytes into a new SV, upgrade that to UTF8, then
|
|
concatenate it to the current buffer. */
|
|
|
|
/* Truncate the existing buffer to the start of where we will be
|
|
reading to: */
|
|
SvCUR_set(bufsv, offset);
|
|
|
|
read_target = sv_newmortal();
|
|
SvUPGRADE(read_target, SVt_PV);
|
|
buffer = SvGROW(read_target, (STRLEN)(length + 1));
|
|
}
|
|
|
|
if (PL_op->op_type == OP_SYSREAD) {
|
|
#ifdef PERL_SOCK_SYSREAD_IS_RECV
|
|
if (IoTYPE(io) == IoTYPE_SOCKET) {
|
|
if (fd < 0) {
|
|
SETERRNO(EBADF,SS_IVCHAN);
|
|
count = -1;
|
|
}
|
|
else
|
|
count = PerlSock_recv(fd, buffer, length, 0);
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
if (fd < 0) {
|
|
SETERRNO(EBADF,RMS_IFI);
|
|
count = -1;
|
|
}
|
|
else
|
|
count = PerlLIO_read(fd, buffer, length);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
count = PerlIO_read(IoIFP(io), buffer, length);
|
|
/* PerlIO_read() - like fread() returns 0 on both error and EOF */
|
|
if (count == 0 && PerlIO_error(IoIFP(io)))
|
|
count = -1;
|
|
}
|
|
if (count < 0) {
|
|
if (IoTYPE(io) == IoTYPE_WRONLY)
|
|
report_wrongway_fh(gv, '>');
|
|
goto say_undef;
|
|
}
|
|
SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
|
|
*SvEND(read_target) = '\0';
|
|
(void)SvPOK_only(read_target);
|
|
if (fp_utf8 && !IN_BYTES) {
|
|
/* Look at utf8 we got back and count the characters */
|
|
const char *bend = buffer + count;
|
|
while (buffer < bend) {
|
|
if (charstart) {
|
|
skip = UTF8SKIP(buffer);
|
|
charskip = 0;
|
|
}
|
|
if (buffer - charskip + skip > bend) {
|
|
/* partial character - try for rest of it */
|
|
length = skip - (bend-buffer);
|
|
offset = bend - SvPVX_const(bufsv);
|
|
charstart = FALSE;
|
|
charskip += count;
|
|
goto more_bytes;
|
|
}
|
|
else {
|
|
got++;
|
|
buffer += skip;
|
|
charstart = TRUE;
|
|
charskip = 0;
|
|
}
|
|
}
|
|
/* If we have not 'got' the number of _characters_ we 'wanted' get some more
|
|
provided amount read (count) was what was requested (length)
|
|
*/
|
|
if (got < wanted && count == length) {
|
|
length = wanted - got;
|
|
offset = bend - SvPVX_const(bufsv);
|
|
goto more_bytes;
|
|
}
|
|
/* return value is character count */
|
|
count = got;
|
|
SvUTF8_on(bufsv);
|
|
}
|
|
else if (buffer_utf8) {
|
|
/* Let svcatsv upgrade the bytes we read in to utf8.
|
|
The buffer is a mortal so will be freed soon. */
|
|
sv_catsv_nomg(bufsv, read_target);
|
|
}
|
|
SvSETMAGIC(bufsv);
|
|
/* This should not be marked tainted if the fp is marked clean */
|
|
if (!(IoFLAGS(io) & IOf_UNTAINT))
|
|
SvTAINTED_on(bufsv);
|
|
SP = ORIGMARK;
|
|
PUSHi(count);
|
|
RETURN;
|
|
|
|
say_undef:
|
|
SP = ORIGMARK;
|
|
RETPUSHUNDEF;
|
|
}
|
|
|
|
|
|
/* also used for: pp_send() where defined */
|
|
|
|
PP(pp_syswrite)
|
|
{
|
|
dSP; dMARK; dORIGMARK; dTARGET;
|
|
SV *bufsv;
|
|
const char *buffer;
|
|
SSize_t retval;
|
|
STRLEN blen;
|
|
const int op_type = PL_op->op_type;
|
|
bool doing_utf8;
|
|
U8 *tmpbuf = NULL;
|
|
GV *const gv = MUTABLE_GV(*++MARK);
|
|
IO *const io = GvIO(gv);
|
|
int fd;
|
|
|
|
if (op_type == OP_SYSWRITE && io) {
|
|
const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
|
|
if (mg) {
|
|
if (MARK == SP - 1) {
|
|
SV *sv = *SP;
|
|
mXPUSHi(sv_len(sv));
|
|
PUTBACK;
|
|
}
|
|
|
|
return Perl_tied_method(aTHX_ SV_CONST(WRITE), mark - 1, MUTABLE_SV(io), mg,
|
|
G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
|
|
sp - mark);
|
|
}
|
|
}
|
|
if (!gv)
|
|
goto say_undef;
|
|
|
|
bufsv = *++MARK;
|
|
|
|
SETERRNO(0,0);
|
|
if (!io || !IoIFP(io) || IoTYPE(io) == IoTYPE_RDONLY) {
|
|
retval = -1;
|
|
if (io && IoIFP(io))
|
|
report_wrongway_fh(gv, '<');
|
|
else
|
|
report_evil_fh(gv);
|
|
SETERRNO(EBADF,RMS_IFI);
|
|
goto say_undef;
|
|
}
|
|
fd = PerlIO_fileno(IoIFP(io));
|
|
if (fd < 0) {
|
|
SETERRNO(EBADF,SS_IVCHAN);
|
|
retval = -1;
|
|
goto say_undef;
|
|
}
|
|
|
|
/* Do this first to trigger any overloading. */
|
|
buffer = SvPV_const(bufsv, blen);
|
|
doing_utf8 = DO_UTF8(bufsv);
|
|
|
|
if (PerlIO_isutf8(IoIFP(io))) {
|
|
Perl_croak(aTHX_
|
|
"%s() isn't allowed on :utf8 handles",
|
|
OP_DESC(PL_op));
|
|
}
|
|
else if (doing_utf8) {
|
|
STRLEN tmplen = blen;
|
|
U8 * const result = bytes_from_utf8((const U8*) buffer, &tmplen, &doing_utf8);
|
|
if (!doing_utf8) {
|
|
tmpbuf = result;
|
|
buffer = (char *) tmpbuf;
|
|
blen = tmplen;
|
|
}
|
|
else {
|
|
assert((char *)result == buffer);
|
|
Perl_croak(aTHX_ "Wide character in %s", OP_DESC(PL_op));
|
|
}
|
|
}
|
|
|
|
#ifdef HAS_SOCKET
|
|
if (op_type == OP_SEND) {
|
|
const int flags = SvIVx(*++MARK);
|
|
if (SP > MARK) {
|
|
STRLEN mlen;
|
|
char * const sockbuf = SvPVx(*++MARK, mlen);
|
|
retval = PerlSock_sendto(fd, buffer, blen,
|
|
flags, (struct sockaddr *)sockbuf, mlen);
|
|
}
|
|
else {
|
|
retval = PerlSock_send(fd, buffer, blen, flags);
|
|
}
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
Size_t length = 0; /* This length is in characters. */
|
|
IV offset;
|
|
|
|
if (MARK >= SP) {
|
|
length = blen;
|
|
} else {
|
|
#if Size_t_size > IVSIZE
|
|
length = (Size_t)SvNVx(*++MARK);
|
|
#else
|
|
length = (Size_t)SvIVx(*++MARK);
|
|
#endif
|
|
if ((SSize_t)length < 0) {
|
|
Safefree(tmpbuf);
|
|
DIE(aTHX_ "Negative length");
|
|
}
|
|
}
|
|
|
|
if (MARK < SP) {
|
|
offset = SvIVx(*++MARK);
|
|
if (offset < 0) {
|
|
if (-offset > (IV)blen) {
|
|
Safefree(tmpbuf);
|
|
DIE(aTHX_ "Offset outside string");
|
|
}
|
|
offset += blen;
|
|
} else if (offset > (IV)blen) {
|
|
Safefree(tmpbuf);
|
|
DIE(aTHX_ "Offset outside string");
|
|
}
|
|
} else
|
|
offset = 0;
|
|
if (length > blen - offset)
|
|
length = blen - offset;
|
|
buffer = buffer+offset;
|
|
|
|
#ifdef PERL_SOCK_SYSWRITE_IS_SEND
|
|
if (IoTYPE(io) == IoTYPE_SOCKET) {
|
|
retval = PerlSock_send(fd, buffer, length, 0);
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
/* See the note at doio.c:do_print about filesize limits. --jhi */
|
|
retval = PerlLIO_write(fd, buffer, length);
|
|
}
|
|
}
|
|
|
|
if (retval < 0)
|
|
goto say_undef;
|
|
SP = ORIGMARK;
|
|
|
|
Safefree(tmpbuf);
|
|
#if Size_t_size > IVSIZE
|
|
PUSHn(retval);
|
|
#else
|
|
PUSHi(retval);
|
|
#endif
|
|
RETURN;
|
|
|
|
say_undef:
|
|
Safefree(tmpbuf);
|
|
SP = ORIGMARK;
|
|
RETPUSHUNDEF;
|
|
}
|
|
|
|
PP(pp_eof)
|
|
{
|
|
dSP;
|
|
GV *gv;
|
|
IO *io;
|
|
const MAGIC *mg;
|
|
/*
|
|
* in Perl 5.12 and later, the additional parameter is a bitmask:
|
|
* 0 = eof
|
|
* 1 = eof(FH)
|
|
* 2 = eof() <- ARGV magic
|
|
*
|
|
* I'll rely on the compiler's trace flow analysis to decide whether to
|
|
* actually assign this out here, or punt it into the only block where it is
|
|
* used. Doing it out here is DRY on the condition logic.
|
|
*/
|
|
unsigned int which;
|
|
|
|
if (MAXARG) {
|
|
gv = PL_last_in_gv = MUTABLE_GV(POPs); /* eof(FH) */
|
|
which = 1;
|
|
}
|
|
else {
|
|
EXTEND(SP, 1);
|
|
|
|
if (PL_op->op_flags & OPf_SPECIAL) {
|
|
gv = PL_last_in_gv = GvEGVx(PL_argvgv); /* eof() - ARGV magic */
|
|
which = 2;
|
|
}
|
|
else {
|
|
gv = PL_last_in_gv; /* eof */
|
|
which = 0;
|
|
}
|
|
}
|
|
|
|
if (!gv)
|
|
RETPUSHYES;
|
|
|
|
if ((io = GvIO(gv)) && (mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar))) {
|
|
return tied_method1(SV_CONST(EOF), SP, MUTABLE_SV(io), mg, newSVuv(which));
|
|
}
|
|
|
|
if (!MAXARG && (PL_op->op_flags & OPf_SPECIAL)) { /* eof() */
|
|
if (io && !IoIFP(io)) {
|
|
if ((IoFLAGS(io) & IOf_START) && av_tindex(GvAVn(gv)) < 0) {
|
|
SV ** svp;
|
|
IoLINES(io) = 0;
|
|
IoFLAGS(io) &= ~IOf_START;
|
|
do_open6(gv, "-", 1, NULL, NULL, 0);
|
|
svp = &GvSV(gv);
|
|
if (*svp) {
|
|
SV * sv = *svp;
|
|
sv_setpvs(sv, "-");
|
|
SvSETMAGIC(sv);
|
|
}
|
|
else
|
|
*svp = newSVpvs("-");
|
|
}
|
|
else if (!nextargv(gv, FALSE))
|
|
RETPUSHYES;
|
|
}
|
|
}
|
|
|
|
PUSHs(boolSV(do_eof(gv)));
|
|
RETURN;
|
|
}
|
|
|
|
PP(pp_tell)
|
|
{
|
|
dSP; dTARGET;
|
|
GV *gv;
|
|
IO *io;
|
|
|
|
if (MAXARG != 0 && (TOPs || POPs))
|
|
PL_last_in_gv = MUTABLE_GV(POPs);
|
|
else
|
|
EXTEND(SP, 1);
|
|
gv = PL_last_in_gv;
|
|
|
|
io = GvIO(gv);
|
|
if (io) {
|
|
const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
|
|
if (mg) {
|
|
return tied_method0(SV_CONST(TELL), SP, MUTABLE_SV(io), mg);
|
|
}
|
|
}
|
|
else if (!gv) {
|
|
if (!errno)
|
|
SETERRNO(EBADF,RMS_IFI);
|
|
PUSHi(-1);
|
|
RETURN;
|
|
}
|
|
|
|
#if LSEEKSIZE > IVSIZE
|
|
PUSHn( do_tell(gv) );
|
|
#else
|
|
PUSHi( do_tell(gv) );
|
|
#endif
|
|
RETURN;
|
|
}
|
|
|
|
|
|
/* also used for: pp_seek() */
|
|
|
|
PP(pp_sysseek)
|
|
{
|
|
dSP;
|
|
const int whence = POPi;
|
|
#if LSEEKSIZE > IVSIZE
|
|
const Off_t offset = (Off_t)SvNVx(POPs);
|
|
#else
|
|
const Off_t offset = (Off_t)SvIVx(POPs);
|
|
#endif
|
|
|
|
GV * const gv = PL_last_in_gv = MUTABLE_GV(POPs);
|
|
IO *const io = GvIO(gv);
|
|
|
|
if (io) {
|
|
const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
|
|
if (mg) {
|
|
#if LSEEKSIZE > IVSIZE
|
|
SV *const offset_sv = newSVnv((NV) offset);
|
|
#else
|
|
SV *const offset_sv = newSViv(offset);
|
|
#endif
|
|
|
|
return tied_method2(SV_CONST(SEEK), SP, MUTABLE_SV(io), mg, offset_sv,
|
|
newSViv(whence));
|
|
}
|
|
}
|
|
|
|
if (PL_op->op_type == OP_SEEK)
|
|
PUSHs(boolSV(do_seek(gv, offset, whence)));
|
|
else {
|
|
const Off_t sought = do_sysseek(gv, offset, whence);
|
|
if (sought < 0)
|
|
PUSHs(&PL_sv_undef);
|
|
else {
|
|
SV* const sv = sought ?
|
|
#if LSEEKSIZE > IVSIZE
|
|
newSVnv((NV)sought)
|
|
#else
|
|
newSViv(sought)
|
|
#endif
|
|
: newSVpvn(zero_but_true, ZBTLEN);
|
|
mPUSHs(sv);
|
|
}
|
|
}
|
|
RETURN;
|
|
}
|
|
|
|
PP(pp_truncate)
|
|
{
|
|
dSP;
|
|
/* There seems to be no consensus on the length type of truncate()
|
|
* and ftruncate(), both off_t and size_t have supporters. In
|
|
* general one would think that when using large files, off_t is
|
|
* at least as wide as size_t, so using an off_t should be okay. */
|
|
/* XXX Configure probe for the length type of *truncate() needed XXX */
|
|
Off_t len;
|
|
|
|
#if Off_t_size > IVSIZE
|
|
len = (Off_t)POPn;
|
|
#else
|
|
len = (Off_t)POPi;
|
|
#endif
|
|
/* Checking for length < 0 is problematic as the type might or
|
|
* might not be signed: if it is not, clever compilers will moan. */
|
|
/* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
|
|
SETERRNO(0,0);
|
|
{
|
|
SV * const sv = POPs;
|
|
int result = 1;
|
|
GV *tmpgv;
|
|
IO *io;
|
|
|
|
if (PL_op->op_flags & OPf_SPECIAL
|
|
? (tmpgv = gv_fetchsv(sv, 0, SVt_PVIO), 1)
|
|
: !!(tmpgv = MAYBE_DEREF_GV(sv)) ) {
|
|
io = GvIO(tmpgv);
|
|
if (!io)
|
|
result = 0;
|
|
else {
|
|
PerlIO *fp;
|
|
do_ftruncate_io:
|
|
TAINT_PROPER("truncate");
|
|
if (!(fp = IoIFP(io))) {
|
|
result = 0;
|
|
}
|
|
else {
|
|
int fd = PerlIO_fileno(fp);
|
|
if (fd < 0) {
|
|
SETERRNO(EBADF,RMS_IFI);
|
|
result = 0;
|
|
} else {
|
|
if (len < 0) {
|
|
SETERRNO(EINVAL, LIB_INVARG);
|
|
result = 0;
|
|
} else {
|
|
PerlIO_flush(fp);
|
|
#ifdef HAS_TRUNCATE
|
|
if (ftruncate(fd, len) < 0)
|
|
#else
|
|
if (my_chsize(fd, len) < 0)
|
|
#endif
|
|
result = 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
|
|
io = MUTABLE_IO(SvRV(sv)); /* *main::FRED{IO} for example */
|
|
goto do_ftruncate_io;
|
|
}
|
|
else {
|
|
const char * const name = SvPV_nomg_const_nolen(sv);
|
|
TAINT_PROPER("truncate");
|
|
#ifdef HAS_TRUNCATE
|
|
if (truncate(name, len) < 0)
|
|
result = 0;
|
|
#else
|
|
{
|
|
int mode = O_RDWR;
|
|
int tmpfd;
|
|
|
|
#if defined(USE_64_BIT_RAWIO) && defined(O_LARGEFILE)
|
|
mode |= O_LARGEFILE; /* Transparently largefiley. */
|
|
#endif
|
|
#ifdef O_BINARY
|
|
/* On open(), the Win32 CRT tries to seek around text
|
|
* files using 32-bit offsets, which causes the open()
|
|
* to fail on large files, so open in binary mode.
|
|
*/
|
|
mode |= O_BINARY;
|
|
#endif
|
|
tmpfd = PerlLIO_open_cloexec(name, mode);
|
|
|
|
if (tmpfd < 0) {
|
|
result = 0;
|
|
} else {
|
|
if (my_chsize(tmpfd, len) < 0)
|
|
result = 0;
|
|
PerlLIO_close(tmpfd);
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
if (result)
|
|
RETPUSHYES;
|
|
if (!errno)
|
|
SETERRNO(EBADF,RMS_IFI);
|
|
RETPUSHUNDEF;
|
|
}
|
|
}
|
|
|
|
|
|
/* also used for: pp_fcntl() */
|
|
|
|
PP(pp_ioctl)
|
|
{
|
|
dSP; dTARGET;
|
|
SV * const argsv = POPs;
|
|
const unsigned int func = POPu;
|
|
int optype;
|
|
GV * const gv = MUTABLE_GV(POPs);
|
|
IO * const io = GvIOn(gv);
|
|
char *s;
|
|
IV retval;
|
|
|
|
if (!IoIFP(io)) {
|
|
report_evil_fh(gv);
|
|
SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
|
|
RETPUSHUNDEF;
|
|
}
|
|
|
|
if (SvPOK(argsv) || !SvNIOK(argsv)) {
|
|
STRLEN len;
|
|
STRLEN need;
|
|
s = SvPV_force(argsv, len);
|
|
need = IOCPARM_LEN(func);
|
|
if (len < need) {
|
|
s = Sv_Grow(argsv, need + 1);
|
|
SvCUR_set(argsv, need);
|
|
}
|
|
|
|
s[SvCUR(argsv)] = 17; /* a little sanity check here */
|
|
}
|
|
else {
|
|
retval = SvIV(argsv);
|
|
s = INT2PTR(char*,retval); /* ouch */
|
|
}
|
|
|
|
optype = PL_op->op_type;
|
|
TAINT_PROPER(PL_op_desc[optype]);
|
|
|
|
if (optype == OP_IOCTL)
|
|
#ifdef HAS_IOCTL
|
|
retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
|
|
#else
|
|
DIE(aTHX_ "ioctl is not implemented");
|
|
#endif
|
|
else
|
|
#ifndef HAS_FCNTL
|
|
DIE(aTHX_ "fcntl is not implemented");
|
|
#elif defined(OS2) && defined(__EMX__)
|
|
retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
|
|
#else
|
|
retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
|
|
#endif
|
|
|
|
#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
|
|
if (SvPOK(argsv)) {
|
|
if (s[SvCUR(argsv)] != 17)
|
|
DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
|
|
OP_NAME(PL_op));
|
|
s[SvCUR(argsv)] = 0; /* put our null back */
|
|
SvSETMAGIC(argsv); /* Assume it has changed */
|
|
}
|
|
|
|
if (retval == -1)
|
|
RETPUSHUNDEF;
|
|
if (retval != 0) {
|
|
PUSHi(retval);
|
|
}
|
|
else {
|
|
PUSHp(zero_but_true, ZBTLEN);
|
|
}
|
|
#endif
|
|
RETURN;
|
|
}
|
|
|
|
PP(pp_flock)
|
|
{
|
|
#ifdef FLOCK
|
|
dSP; dTARGET;
|
|
I32 value;
|
|
const int argtype = POPi;
|
|
GV * const gv = MUTABLE_GV(POPs);
|
|
IO *const io = GvIO(gv);
|
|
PerlIO *const fp = io ? IoIFP(io) : NULL;
|
|
|
|
/* XXX Looks to me like io is always NULL at this point */
|
|
if (fp) {
|
|
(void)PerlIO_flush(fp);
|
|
value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
|
|
}
|
|
else {
|
|
report_evil_fh(gv);
|
|
value = 0;
|
|
SETERRNO(EBADF,RMS_IFI);
|
|
}
|
|
PUSHi(value);
|
|
RETURN;
|
|
#else
|
|
DIE(aTHX_ PL_no_func, "flock");
|
|
#endif
|
|
}
|
|
|
|
/* Sockets. */
|
|
|
|
#ifdef HAS_SOCKET
|
|
|
|
PP(pp_socket)
|
|
{
|
|
dSP;
|
|
const int protocol = POPi;
|
|
const int type = POPi;
|
|
const int domain = POPi;
|
|
GV * const gv = MUTABLE_GV(POPs);
|
|
IO * const io = GvIOn(gv);
|
|
int fd;
|
|
|
|
if (IoIFP(io))
|
|
do_close(gv, FALSE);
|
|
|
|
TAINT_PROPER("socket");
|
|
fd = PerlSock_socket_cloexec(domain, type, protocol);
|
|
if (fd < 0) {
|
|
RETPUSHUNDEF;
|
|
}
|
|
IoIFP(io) = PerlIO_fdopen(fd, "r" SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
|
|
IoOFP(io) = PerlIO_fdopen(fd, "w" SOCKET_OPEN_MODE);
|
|
IoTYPE(io) = IoTYPE_SOCKET;
|
|
if (!IoIFP(io) || !IoOFP(io)) {
|
|
if (IoIFP(io)) PerlIO_close(IoIFP(io));
|
|
if (IoOFP(io)) PerlIO_close(IoOFP(io));
|
|
if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
|
|
RETPUSHUNDEF;
|
|
}
|
|
|
|
RETPUSHYES;
|
|
}
|
|
#endif
|
|
|
|
PP(pp_sockpair)
|
|
{
|
|
#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
|
|
dSP;
|
|
int fd[2];
|
|
const int protocol = POPi;
|
|
const int type = POPi;
|
|
const int domain = POPi;
|
|
|
|
GV * const gv2 = MUTABLE_GV(POPs);
|
|
IO * const io2 = GvIOn(gv2);
|
|
GV * const gv1 = MUTABLE_GV(POPs);
|
|
IO * const io1 = GvIOn(gv1);
|
|
|
|
if (IoIFP(io1))
|
|
do_close(gv1, FALSE);
|
|
if (IoIFP(io2))
|
|
do_close(gv2, FALSE);
|
|
|
|
TAINT_PROPER("socketpair");
|
|
if (PerlSock_socketpair_cloexec(domain, type, protocol, fd) < 0)
|
|
RETPUSHUNDEF;
|
|
IoIFP(io1) = PerlIO_fdopen(fd[0], "r" SOCKET_OPEN_MODE);
|
|
IoOFP(io1) = PerlIO_fdopen(fd[0], "w" SOCKET_OPEN_MODE);
|
|
IoTYPE(io1) = IoTYPE_SOCKET;
|
|
IoIFP(io2) = PerlIO_fdopen(fd[1], "r" SOCKET_OPEN_MODE);
|
|
IoOFP(io2) = PerlIO_fdopen(fd[1], "w" SOCKET_OPEN_MODE);
|
|
IoTYPE(io2) = IoTYPE_SOCKET;
|
|
if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
|
|
if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
|
|
if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
|
|
if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
|
|
if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
|
|
if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
|
|
if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
|
|
RETPUSHUNDEF;
|
|
}
|
|
|
|
RETPUSHYES;
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, "socketpair");
|
|
#endif
|
|
}
|
|
|
|
#ifdef HAS_SOCKET
|
|
|
|
/* also used for: pp_connect() */
|
|
|
|
PP(pp_bind)
|
|
{
|
|
dSP;
|
|
SV * const addrsv = POPs;
|
|
/* OK, so on what platform does bind modify addr? */
|
|
const char *addr;
|
|
GV * const gv = MUTABLE_GV(POPs);
|
|
IO * const io = GvIOn(gv);
|
|
STRLEN len;
|
|
int op_type;
|
|
int fd;
|
|
|
|
if (!IoIFP(io))
|
|
goto nuts;
|
|
fd = PerlIO_fileno(IoIFP(io));
|
|
if (fd < 0)
|
|
goto nuts;
|
|
|
|
addr = SvPV_const(addrsv, len);
|
|
op_type = PL_op->op_type;
|
|
TAINT_PROPER(PL_op_desc[op_type]);
|
|
if ((op_type == OP_BIND
|
|
? PerlSock_bind(fd, (struct sockaddr *)addr, len)
|
|
: PerlSock_connect(fd, (struct sockaddr *)addr, len))
|
|
>= 0)
|
|
RETPUSHYES;
|
|
else
|
|
RETPUSHUNDEF;
|
|
|
|
nuts:
|
|
report_evil_fh(gv);
|
|
SETERRNO(EBADF,SS_IVCHAN);
|
|
RETPUSHUNDEF;
|
|
}
|
|
|
|
PP(pp_listen)
|
|
{
|
|
dSP;
|
|
const int backlog = POPi;
|
|
GV * const gv = MUTABLE_GV(POPs);
|
|
IO * const io = GvIOn(gv);
|
|
|
|
if (!IoIFP(io))
|
|
goto nuts;
|
|
|
|
if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
|
|
RETPUSHYES;
|
|
else
|
|
RETPUSHUNDEF;
|
|
|
|
nuts:
|
|
report_evil_fh(gv);
|
|
SETERRNO(EBADF,SS_IVCHAN);
|
|
RETPUSHUNDEF;
|
|
}
|
|
|
|
PP(pp_accept)
|
|
{
|
|
dSP; dTARGET;
|
|
IO *nstio;
|
|
char namebuf[MAXPATHLEN];
|
|
#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(__QNXNTO__)
|
|
Sock_size_t len = sizeof (struct sockaddr_in);
|
|
#else
|
|
Sock_size_t len = sizeof namebuf;
|
|
#endif
|
|
GV * const ggv = MUTABLE_GV(POPs);
|
|
GV * const ngv = MUTABLE_GV(POPs);
|
|
int fd;
|
|
|
|
IO * const gstio = GvIO(ggv);
|
|
if (!gstio || !IoIFP(gstio))
|
|
goto nuts;
|
|
|
|
nstio = GvIOn(ngv);
|
|
fd = PerlSock_accept_cloexec(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
|
|
#if defined(OEMVS)
|
|
if (len == 0) {
|
|
/* Some platforms indicate zero length when an AF_UNIX client is
|
|
* not bound. Simulate a non-zero-length sockaddr structure in
|
|
* this case. */
|
|
namebuf[0] = 0; /* sun_len */
|
|
namebuf[1] = AF_UNIX; /* sun_family */
|
|
len = 2;
|
|
}
|
|
#endif
|
|
|
|
if (fd < 0)
|
|
goto badexit;
|
|
if (IoIFP(nstio))
|
|
do_close(ngv, FALSE);
|
|
IoIFP(nstio) = PerlIO_fdopen(fd, "r" SOCKET_OPEN_MODE);
|
|
IoOFP(nstio) = PerlIO_fdopen(fd, "w" SOCKET_OPEN_MODE);
|
|
IoTYPE(nstio) = IoTYPE_SOCKET;
|
|
if (!IoIFP(nstio) || !IoOFP(nstio)) {
|
|
if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
|
|
if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
|
|
if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
|
|
goto badexit;
|
|
}
|
|
|
|
#ifdef __SCO_VERSION__
|
|
len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
|
|
#endif
|
|
|
|
PUSHp(namebuf, len);
|
|
RETURN;
|
|
|
|
nuts:
|
|
report_evil_fh(ggv);
|
|
SETERRNO(EBADF,SS_IVCHAN);
|
|
|
|
badexit:
|
|
RETPUSHUNDEF;
|
|
|
|
}
|
|
|
|
PP(pp_shutdown)
|
|
{
|
|
dSP; dTARGET;
|
|
const int how = POPi;
|
|
GV * const gv = MUTABLE_GV(POPs);
|
|
IO * const io = GvIOn(gv);
|
|
|
|
if (!IoIFP(io))
|
|
goto nuts;
|
|
|
|
PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
|
|
RETURN;
|
|
|
|
nuts:
|
|
report_evil_fh(gv);
|
|
SETERRNO(EBADF,SS_IVCHAN);
|
|
RETPUSHUNDEF;
|
|
}
|
|
|
|
|
|
/* also used for: pp_gsockopt() */
|
|
|
|
PP(pp_ssockopt)
|
|
{
|
|
dSP;
|
|
const int optype = PL_op->op_type;
|
|
SV * const sv = (optype == OP_GSOCKOPT) ? sv_2mortal(newSV(257)) : POPs;
|
|
const unsigned int optname = (unsigned int) POPi;
|
|
const unsigned int lvl = (unsigned int) POPi;
|
|
GV * const gv = MUTABLE_GV(POPs);
|
|
IO * const io = GvIOn(gv);
|
|
int fd;
|
|
Sock_size_t len;
|
|
|
|
if (!IoIFP(io))
|
|
goto nuts;
|
|
|
|
fd = PerlIO_fileno(IoIFP(io));
|
|
if (fd < 0)
|
|
goto nuts;
|
|
switch (optype) {
|
|
case OP_GSOCKOPT:
|
|
SvGROW(sv, 257);
|
|
(void)SvPOK_only(sv);
|
|
SvCUR_set(sv,256);
|
|
*SvEND(sv) ='\0';
|
|
len = SvCUR(sv);
|
|
if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
|
|
goto nuts2;
|
|
#if defined(_AIX)
|
|
/* XXX Configure test: does getsockopt set the length properly? */
|
|
if (len == 256)
|
|
len = sizeof(int);
|
|
#endif
|
|
SvCUR_set(sv, len);
|
|
*SvEND(sv) ='\0';
|
|
PUSHs(sv);
|
|
break;
|
|
case OP_SSOCKOPT: {
|
|
#if defined(__SYMBIAN32__)
|
|
# define SETSOCKOPT_OPTION_VALUE_T void *
|
|
#else
|
|
# define SETSOCKOPT_OPTION_VALUE_T const char *
|
|
#endif
|
|
/* XXX TODO: We need to have a proper type (a Configure probe,
|
|
* etc.) for what the C headers think of the third argument of
|
|
* setsockopt(), the option_value read-only buffer: is it
|
|
* a "char *", or a "void *", const or not. Some compilers
|
|
* don't take kindly to e.g. assuming that "char *" implicitly
|
|
* promotes to a "void *", or to explicitly promoting/demoting
|
|
* consts to non/vice versa. The "const void *" is the SUS
|
|
* definition, but that does not fly everywhere for the above
|
|
* reasons. */
|
|
SETSOCKOPT_OPTION_VALUE_T buf;
|
|
int aint;
|
|
if (SvPOKp(sv)) {
|
|
STRLEN l;
|
|
buf = (SETSOCKOPT_OPTION_VALUE_T) SvPV_const(sv, l);
|
|
len = l;
|
|
}
|
|
else {
|
|
aint = (int)SvIV(sv);
|
|
buf = (SETSOCKOPT_OPTION_VALUE_T) &aint;
|
|
len = sizeof(int);
|
|
}
|
|
if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
|
|
goto nuts2;
|
|
PUSHs(&PL_sv_yes);
|
|
}
|
|
break;
|
|
}
|
|
RETURN;
|
|
|
|
nuts:
|
|
report_evil_fh(gv);
|
|
SETERRNO(EBADF,SS_IVCHAN);
|
|
nuts2:
|
|
RETPUSHUNDEF;
|
|
|
|
}
|
|
|
|
|
|
/* also used for: pp_getsockname() */
|
|
|
|
PP(pp_getpeername)
|
|
{
|
|
dSP;
|
|
const int optype = PL_op->op_type;
|
|
GV * const gv = MUTABLE_GV(POPs);
|
|
IO * const io = GvIOn(gv);
|
|
Sock_size_t len;
|
|
SV *sv;
|
|
int fd;
|
|
|
|
if (!IoIFP(io))
|
|
goto nuts;
|
|
|
|
sv = sv_2mortal(newSV(257));
|
|
(void)SvPOK_only(sv);
|
|
len = 256;
|
|
SvCUR_set(sv, len);
|
|
*SvEND(sv) ='\0';
|
|
fd = PerlIO_fileno(IoIFP(io));
|
|
if (fd < 0)
|
|
goto nuts;
|
|
switch (optype) {
|
|
case OP_GETSOCKNAME:
|
|
if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
|
|
goto nuts2;
|
|
break;
|
|
case OP_GETPEERNAME:
|
|
if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
|
|
goto nuts2;
|
|
#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
|
|
{
|
|
static const char nowhere[] = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
|
|
/* If the call succeeded, make sure we don't have a zeroed port/addr */
|
|
if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
|
|
!memcmp(SvPVX_const(sv) + sizeof(u_short), nowhere,
|
|
sizeof(u_short) + sizeof(struct in_addr))) {
|
|
goto nuts2;
|
|
}
|
|
}
|
|
#endif
|
|
break;
|
|
}
|
|
#ifdef BOGUS_GETNAME_RETURN
|
|
/* Interactive Unix, getpeername() and getsockname()
|
|
does not return valid namelen */
|
|
if (len == BOGUS_GETNAME_RETURN)
|
|
len = sizeof(struct sockaddr);
|
|
#endif
|
|
SvCUR_set(sv, len);
|
|
*SvEND(sv) ='\0';
|
|
PUSHs(sv);
|
|
RETURN;
|
|
|
|
nuts:
|
|
report_evil_fh(gv);
|
|
SETERRNO(EBADF,SS_IVCHAN);
|
|
nuts2:
|
|
RETPUSHUNDEF;
|
|
}
|
|
|
|
#endif
|
|
|
|
/* Stat calls. */
|
|
|
|
/* also used for: pp_lstat() */
|
|
|
|
PP(pp_stat)
|
|
{
|
|
dSP;
|
|
GV *gv = NULL;
|
|
IO *io = NULL;
|
|
U8 gimme;
|
|
I32 max = 13;
|
|
SV* sv;
|
|
|
|
if (PL_op->op_flags & OPf_REF ? (gv = cGVOP_gv, 1)
|
|
: !!(sv=POPs, gv = MAYBE_DEREF_GV(sv))) {
|
|
if (PL_op->op_type == OP_LSTAT) {
|
|
if (gv != PL_defgv) {
|
|
do_fstat_warning_check:
|
|
Perl_ck_warner(aTHX_ packWARN(WARN_IO),
|
|
"lstat() on filehandle%s%" SVf,
|
|
gv ? " " : "",
|
|
SVfARG(gv
|
|
? sv_2mortal(newSVhek(GvENAME_HEK(gv)))
|
|
: &PL_sv_no));
|
|
} else if (PL_laststype != OP_LSTAT)
|
|
/* diag_listed_as: The stat preceding %s wasn't an lstat */
|
|
Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
|
|
}
|
|
|
|
if (gv == PL_defgv) {
|
|
if (PL_laststatval < 0)
|
|
SETERRNO(EBADF,RMS_IFI);
|
|
} else {
|
|
do_fstat_have_io:
|
|
PL_laststype = OP_STAT;
|
|
PL_statgv = gv ? gv : (GV *)io;
|
|
SvPVCLEAR(PL_statname);
|
|
if(gv) {
|
|
io = GvIO(gv);
|
|
}
|
|
if (io) {
|
|
if (IoIFP(io)) {
|
|
int fd = PerlIO_fileno(IoIFP(io));
|
|
if (fd < 0) {
|
|
report_evil_fh(gv);
|
|
PL_laststatval = -1;
|
|
SETERRNO(EBADF,RMS_IFI);
|
|
} else {
|
|
PL_laststatval = PerlLIO_fstat(fd, &PL_statcache);
|
|
}
|
|
} else if (IoDIRP(io)) {
|
|
PL_laststatval =
|
|
PerlLIO_fstat(my_dirfd(IoDIRP(io)), &PL_statcache);
|
|
} else {
|
|
report_evil_fh(gv);
|
|
PL_laststatval = -1;
|
|
SETERRNO(EBADF,RMS_IFI);
|
|
}
|
|
} else {
|
|
report_evil_fh(gv);
|
|
PL_laststatval = -1;
|
|
SETERRNO(EBADF,RMS_IFI);
|
|
}
|
|
}
|
|
|
|
if (PL_laststatval < 0) {
|
|
max = 0;
|
|
}
|
|
}
|
|
else {
|
|
const char *file;
|
|
const char *temp;
|
|
STRLEN len;
|
|
if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
|
|
io = MUTABLE_IO(SvRV(sv));
|
|
if (PL_op->op_type == OP_LSTAT)
|
|
goto do_fstat_warning_check;
|
|
goto do_fstat_have_io;
|
|
}
|
|
SvTAINTED_off(PL_statname); /* previous tainting irrelevant */
|
|
temp = SvPV_nomg_const(sv, len);
|
|
sv_setpv(PL_statname, temp);
|
|
PL_statgv = NULL;
|
|
PL_laststype = PL_op->op_type;
|
|
file = SvPV_nolen_const(PL_statname);
|
|
if (!IS_SAFE_PATHNAME(temp, len, OP_NAME(PL_op))) {
|
|
PL_laststatval = -1;
|
|
}
|
|
else if (PL_op->op_type == OP_LSTAT)
|
|
PL_laststatval = PerlLIO_lstat(file, &PL_statcache);
|
|
else
|
|
PL_laststatval = PerlLIO_stat(file, &PL_statcache);
|
|
if (PL_laststatval < 0) {
|
|
if (ckWARN(WARN_NEWLINE) && should_warn_nl(file)) {
|
|
/* PL_warn_nl is constant */
|
|
GCC_DIAG_IGNORE_STMT(-Wformat-nonliteral);
|
|
Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
|
|
GCC_DIAG_RESTORE_STMT;
|
|
}
|
|
max = 0;
|
|
}
|
|
}
|
|
|
|
gimme = GIMME_V;
|
|
if (gimme != G_ARRAY) {
|
|
if (gimme != G_VOID)
|
|
XPUSHs(boolSV(max));
|
|
RETURN;
|
|
}
|
|
if (max) {
|
|
EXTEND(SP, max);
|
|
EXTEND_MORTAL(max);
|
|
mPUSHi(PL_statcache.st_dev);
|
|
{
|
|
/*
|
|
* We try to represent st_ino as a native IV or UV where
|
|
* possible, but fall back to a decimal string where
|
|
* necessary. The code to generate these decimal strings
|
|
* is quite obtuse, because (a) we're portable to non-POSIX
|
|
* platforms where st_ino might be signed; (b) we didn't
|
|
* necessarily detect at Configure time whether st_ino is
|
|
* signed; (c) we're portable to non-POSIX platforms where
|
|
* ino_t isn't defined, so have no name for the type of
|
|
* st_ino; and (d) sprintf() doesn't necessarily support
|
|
* integers as large as st_ino.
|
|
*/
|
|
bool neg;
|
|
Stat_t s;
|
|
CLANG_DIAG_IGNORE_STMT(-Wtautological-compare);
|
|
GCC_DIAG_IGNORE_STMT(-Wtype-limits);
|
|
neg = PL_statcache.st_ino < 0;
|
|
GCC_DIAG_RESTORE_STMT;
|
|
CLANG_DIAG_RESTORE_STMT;
|
|
if (neg) {
|
|
s.st_ino = (IV)PL_statcache.st_ino;
|
|
if (LIKELY(s.st_ino == PL_statcache.st_ino)) {
|
|
mPUSHi(s.st_ino);
|
|
} else {
|
|
char buf[sizeof(s.st_ino)*3+1], *p;
|
|
s.st_ino = PL_statcache.st_ino;
|
|
for (p = buf + sizeof(buf); p != buf+1; ) {
|
|
Stat_t t;
|
|
t.st_ino = s.st_ino / 10;
|
|
*--p = '0' + (int)(t.st_ino*10 - s.st_ino);
|
|
s.st_ino = t.st_ino;
|
|
}
|
|
while (*p == '0')
|
|
p++;
|
|
*--p = '-';
|
|
mPUSHp(p, buf+sizeof(buf) - p);
|
|
}
|
|
} else {
|
|
s.st_ino = (UV)PL_statcache.st_ino;
|
|
if (LIKELY(s.st_ino == PL_statcache.st_ino)) {
|
|
mPUSHu(s.st_ino);
|
|
} else {
|
|
char buf[sizeof(s.st_ino)*3], *p;
|
|
s.st_ino = PL_statcache.st_ino;
|
|
for (p = buf + sizeof(buf); p != buf; ) {
|
|
Stat_t t;
|
|
t.st_ino = s.st_ino / 10;
|
|
*--p = '0' + (int)(s.st_ino - t.st_ino*10);
|
|
s.st_ino = t.st_ino;
|
|
}
|
|
while (*p == '0')
|
|
p++;
|
|
mPUSHp(p, buf+sizeof(buf) - p);
|
|
}
|
|
}
|
|
}
|
|
mPUSHu(PL_statcache.st_mode);
|
|
mPUSHu(PL_statcache.st_nlink);
|
|
|
|
sv_setuid(PUSHmortal, PL_statcache.st_uid);
|
|
sv_setgid(PUSHmortal, PL_statcache.st_gid);
|
|
|
|
#ifdef USE_STAT_RDEV
|
|
mPUSHi(PL_statcache.st_rdev);
|
|
#else
|
|
PUSHs(newSVpvs_flags("", SVs_TEMP));
|
|
#endif
|
|
#if Off_t_size > IVSIZE
|
|
mPUSHn(PL_statcache.st_size);
|
|
#else
|
|
mPUSHi(PL_statcache.st_size);
|
|
#endif
|
|
#ifdef BIG_TIME
|
|
mPUSHn(PL_statcache.st_atime);
|
|
mPUSHn(PL_statcache.st_mtime);
|
|
mPUSHn(PL_statcache.st_ctime);
|
|
#else
|
|
mPUSHi(PL_statcache.st_atime);
|
|
mPUSHi(PL_statcache.st_mtime);
|
|
mPUSHi(PL_statcache.st_ctime);
|
|
#endif
|
|
#ifdef USE_STAT_BLOCKS
|
|
mPUSHu(PL_statcache.st_blksize);
|
|
mPUSHu(PL_statcache.st_blocks);
|
|
#else
|
|
PUSHs(newSVpvs_flags("", SVs_TEMP));
|
|
PUSHs(newSVpvs_flags("", SVs_TEMP));
|
|
#endif
|
|
}
|
|
RETURN;
|
|
}
|
|
|
|
/* All filetest ops avoid manipulating the perl stack pointer in their main
|
|
bodies (since commit d2c4d2d1e22d3125), and return using either
|
|
S_ft_return_false() or S_ft_return_true(). These two helper functions are
|
|
the only two which manipulate the perl stack. To ensure that no stack
|
|
manipulation macros are used, the filetest ops avoid defining a local copy
|
|
of the stack pointer with dSP. */
|
|
|
|
/* If the next filetest is stacked up with this one
|
|
(PL_op->op_private & OPpFT_STACKING), we leave
|
|
the original argument on the stack for success,
|
|
and skip the stacked operators on failure.
|
|
The next few macros/functions take care of this.
|
|
*/
|
|
|
|
static OP *
|
|
S_ft_return_false(pTHX_ SV *ret) {
|
|
OP *next = NORMAL;
|
|
dSP;
|
|
|
|
if (PL_op->op_flags & OPf_REF) XPUSHs(ret);
|
|
else SETs(ret);
|
|
PUTBACK;
|
|
|
|
if (PL_op->op_private & OPpFT_STACKING) {
|
|
while (next && OP_IS_FILETEST(next->op_type)
|
|
&& next->op_private & OPpFT_STACKED)
|
|
next = next->op_next;
|
|
}
|
|
return next;
|
|
}
|
|
|
|
PERL_STATIC_INLINE OP *
|
|
S_ft_return_true(pTHX_ SV *ret) {
|
|
dSP;
|
|
if (PL_op->op_flags & OPf_REF)
|
|
XPUSHs(PL_op->op_private & OPpFT_STACKING ? (SV *)cGVOP_gv : (ret));
|
|
else if (!(PL_op->op_private & OPpFT_STACKING))
|
|
SETs(ret);
|
|
PUTBACK;
|
|
return NORMAL;
|
|
}
|
|
|
|
#define FT_RETURNNO return S_ft_return_false(aTHX_ &PL_sv_no)
|
|
#define FT_RETURNUNDEF return S_ft_return_false(aTHX_ &PL_sv_undef)
|
|
#define FT_RETURNYES return S_ft_return_true(aTHX_ &PL_sv_yes)
|
|
|
|
#define tryAMAGICftest_MG(chr) STMT_START { \
|
|
if ( (SvFLAGS(*PL_stack_sp) & (SVf_ROK|SVs_GMG)) \
|
|
&& PL_op->op_flags & OPf_KIDS) { \
|
|
OP *next = S_try_amagic_ftest(aTHX_ chr); \
|
|
if (next) return next; \
|
|
} \
|
|
} STMT_END
|
|
|
|
STATIC OP *
|
|
S_try_amagic_ftest(pTHX_ char chr) {
|
|
SV *const arg = *PL_stack_sp;
|
|
|
|
assert(chr != '?');
|
|
if (!(PL_op->op_private & OPpFT_STACKING)) SvGETMAGIC(arg);
|
|
|
|
if (SvAMAGIC(arg))
|
|
{
|
|
const char tmpchr = chr;
|
|
SV * const tmpsv = amagic_call(arg,
|
|
newSVpvn_flags(&tmpchr, 1, SVs_TEMP),
|
|
ftest_amg, AMGf_unary);
|
|
|
|
if (!tmpsv)
|
|
return NULL;
|
|
|
|
return SvTRUE(tmpsv)
|
|
? S_ft_return_true(aTHX_ tmpsv) : S_ft_return_false(aTHX_ tmpsv);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/* also used for: pp_fteexec() pp_fteread() pp_ftewrite() pp_ftrexec()
|
|
* pp_ftrwrite() */
|
|
|
|
PP(pp_ftrread)
|
|
{
|
|
I32 result;
|
|
/* Not const, because things tweak this below. Not bool, because there's
|
|
no guarantee that OPpFT_ACCESS is <= CHAR_MAX */
|
|
#if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
|
|
I32 use_access = PL_op->op_private & OPpFT_ACCESS;
|
|
/* Giving some sort of initial value silences compilers. */
|
|
# ifdef R_OK
|
|
int access_mode = R_OK;
|
|
# else
|
|
int access_mode = 0;
|
|
# endif
|
|
#else
|
|
/* access_mode is never used, but leaving use_access in makes the
|
|
conditional compiling below much clearer. */
|
|
I32 use_access = 0;
|
|
#endif
|
|
Mode_t stat_mode = S_IRUSR;
|
|
|
|
bool effective = FALSE;
|
|
char opchar = '?';
|
|
|
|
switch (PL_op->op_type) {
|
|
case OP_FTRREAD: opchar = 'R'; break;
|
|
case OP_FTRWRITE: opchar = 'W'; break;
|
|
case OP_FTREXEC: opchar = 'X'; break;
|
|
case OP_FTEREAD: opchar = 'r'; break;
|
|
case OP_FTEWRITE: opchar = 'w'; break;
|
|
case OP_FTEEXEC: opchar = 'x'; break;
|
|
}
|
|
tryAMAGICftest_MG(opchar);
|
|
|
|
switch (PL_op->op_type) {
|
|
case OP_FTRREAD:
|
|
#if !(defined(HAS_ACCESS) && defined(R_OK))
|
|
use_access = 0;
|
|
#endif
|
|
break;
|
|
|
|
case OP_FTRWRITE:
|
|
#if defined(HAS_ACCESS) && defined(W_OK)
|
|
access_mode = W_OK;
|
|
#else
|
|
use_access = 0;
|
|
#endif
|
|
stat_mode = S_IWUSR;
|
|
break;
|
|
|
|
case OP_FTREXEC:
|
|
#if defined(HAS_ACCESS) && defined(X_OK)
|
|
access_mode = X_OK;
|
|
#else
|
|
use_access = 0;
|
|
#endif
|
|
stat_mode = S_IXUSR;
|
|
break;
|
|
|
|
case OP_FTEWRITE:
|
|
#ifdef PERL_EFF_ACCESS
|
|
access_mode = W_OK;
|
|
#endif
|
|
stat_mode = S_IWUSR;
|
|
/* FALLTHROUGH */
|
|
|
|
case OP_FTEREAD:
|
|
#ifndef PERL_EFF_ACCESS
|
|
use_access = 0;
|
|
#endif
|
|
effective = TRUE;
|
|
break;
|
|
|
|
case OP_FTEEXEC:
|
|
#ifdef PERL_EFF_ACCESS
|
|
access_mode = X_OK;
|
|
#else
|
|
use_access = 0;
|
|
#endif
|
|
stat_mode = S_IXUSR;
|
|
effective = TRUE;
|
|
break;
|
|
}
|
|
|
|
if (use_access) {
|
|
#if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
|
|
STRLEN len;
|
|
const char *name = SvPV(*PL_stack_sp, len);
|
|
if (!IS_SAFE_PATHNAME(name, len, OP_NAME(PL_op))) {
|
|
result = -1;
|
|
}
|
|
else if (effective) {
|
|
# ifdef PERL_EFF_ACCESS
|
|
result = PERL_EFF_ACCESS(name, access_mode);
|
|
# else
|
|
DIE(aTHX_ "panic: attempt to call PERL_EFF_ACCESS in %s",
|
|
OP_NAME(PL_op));
|
|
# endif
|
|
}
|
|
else {
|
|
# ifdef HAS_ACCESS
|
|
result = access(name, access_mode);
|
|
# else
|
|
DIE(aTHX_ "panic: attempt to call access() in %s", OP_NAME(PL_op));
|
|
# endif
|
|
}
|
|
if (result == 0)
|
|
FT_RETURNYES;
|
|
if (result < 0)
|
|
FT_RETURNUNDEF;
|
|
FT_RETURNNO;
|
|
#endif
|
|
}
|
|
|
|
result = my_stat_flags(0);
|
|
if (result < 0)
|
|
FT_RETURNUNDEF;
|
|
if (cando(stat_mode, effective, &PL_statcache))
|
|
FT_RETURNYES;
|
|
FT_RETURNNO;
|
|
}
|
|
|
|
|
|
/* also used for: pp_ftatime() pp_ftctime() pp_ftmtime() pp_ftsize() */
|
|
|
|
PP(pp_ftis)
|
|
{
|
|
I32 result;
|
|
const int op_type = PL_op->op_type;
|
|
char opchar = '?';
|
|
|
|
switch (op_type) {
|
|
case OP_FTIS: opchar = 'e'; break;
|
|
case OP_FTSIZE: opchar = 's'; break;
|
|
case OP_FTMTIME: opchar = 'M'; break;
|
|
case OP_FTCTIME: opchar = 'C'; break;
|
|
case OP_FTATIME: opchar = 'A'; break;
|
|
}
|
|
tryAMAGICftest_MG(opchar);
|
|
|
|
result = my_stat_flags(0);
|
|
if (result < 0)
|
|
FT_RETURNUNDEF;
|
|
if (op_type == OP_FTIS)
|
|
FT_RETURNYES;
|
|
{
|
|
/* You can't dTARGET inside OP_FTIS, because you'll get
|
|
"panic: pad_sv po" - the op is not flagged to have a target. */
|
|
dTARGET;
|
|
switch (op_type) {
|
|
case OP_FTSIZE:
|
|
#if Off_t_size > IVSIZE
|
|
sv_setnv(TARG, (NV)PL_statcache.st_size);
|
|
#else
|
|
sv_setiv(TARG, (IV)PL_statcache.st_size);
|
|
#endif
|
|
break;
|
|
case OP_FTMTIME:
|
|
sv_setnv(TARG,
|
|
((NV)PL_basetime - PL_statcache.st_mtime) / 86400.0 );
|
|
break;
|
|
case OP_FTATIME:
|
|
sv_setnv(TARG,
|
|
((NV)PL_basetime - PL_statcache.st_atime) / 86400.0 );
|
|
break;
|
|
case OP_FTCTIME:
|
|
sv_setnv(TARG,
|
|
((NV)PL_basetime - PL_statcache.st_ctime) / 86400.0 );
|
|
break;
|
|
}
|
|
SvSETMAGIC(TARG);
|
|
return SvTRUE_nomg_NN(TARG)
|
|
? S_ft_return_true(aTHX_ TARG) : S_ft_return_false(aTHX_ TARG);
|
|
}
|
|
}
|
|
|
|
|
|
/* also used for: pp_ftblk() pp_ftchr() pp_ftdir() pp_fteowned()
|
|
* pp_ftfile() pp_ftpipe() pp_ftsgid() pp_ftsock()
|
|
* pp_ftsuid() pp_ftsvtx() pp_ftzero() */
|
|
|
|
PP(pp_ftrowned)
|
|
{
|
|
I32 result;
|
|
char opchar = '?';
|
|
|
|
switch (PL_op->op_type) {
|
|
case OP_FTROWNED: opchar = 'O'; break;
|
|
case OP_FTEOWNED: opchar = 'o'; break;
|
|
case OP_FTZERO: opchar = 'z'; break;
|
|
case OP_FTSOCK: opchar = 'S'; break;
|
|
case OP_FTCHR: opchar = 'c'; break;
|
|
case OP_FTBLK: opchar = 'b'; break;
|
|
case OP_FTFILE: opchar = 'f'; break;
|
|
case OP_FTDIR: opchar = 'd'; break;
|
|
case OP_FTPIPE: opchar = 'p'; break;
|
|
case OP_FTSUID: opchar = 'u'; break;
|
|
case OP_FTSGID: opchar = 'g'; break;
|
|
case OP_FTSVTX: opchar = 'k'; break;
|
|
}
|
|
tryAMAGICftest_MG(opchar);
|
|
|
|
result = my_stat_flags(0);
|
|
if (result < 0)
|
|
FT_RETURNUNDEF;
|
|
switch (PL_op->op_type) {
|
|
case OP_FTROWNED:
|
|
if (PL_statcache.st_uid == PerlProc_getuid())
|
|
FT_RETURNYES;
|
|
break;
|
|
case OP_FTEOWNED:
|
|
if (PL_statcache.st_uid == PerlProc_geteuid())
|
|
FT_RETURNYES;
|
|
break;
|
|
case OP_FTZERO:
|
|
if (PL_statcache.st_size == 0)
|
|
FT_RETURNYES;
|
|
break;
|
|
case OP_FTSOCK:
|
|
if (S_ISSOCK(PL_statcache.st_mode))
|
|
FT_RETURNYES;
|
|
break;
|
|
case OP_FTCHR:
|
|
if (S_ISCHR(PL_statcache.st_mode))
|
|
FT_RETURNYES;
|
|
break;
|
|
case OP_FTBLK:
|
|
if (S_ISBLK(PL_statcache.st_mode))
|
|
FT_RETURNYES;
|
|
break;
|
|
case OP_FTFILE:
|
|
if (S_ISREG(PL_statcache.st_mode))
|
|
FT_RETURNYES;
|
|
break;
|
|
case OP_FTDIR:
|
|
if (S_ISDIR(PL_statcache.st_mode))
|
|
FT_RETURNYES;
|
|
break;
|
|
case OP_FTPIPE:
|
|
if (S_ISFIFO(PL_statcache.st_mode))
|
|
FT_RETURNYES;
|
|
break;
|
|
#ifdef S_ISUID
|
|
case OP_FTSUID:
|
|
if (PL_statcache.st_mode & S_ISUID)
|
|
FT_RETURNYES;
|
|
break;
|
|
#endif
|
|
#ifdef S_ISGID
|
|
case OP_FTSGID:
|
|
if (PL_statcache.st_mode & S_ISGID)
|
|
FT_RETURNYES;
|
|
break;
|
|
#endif
|
|
#ifdef S_ISVTX
|
|
case OP_FTSVTX:
|
|
if (PL_statcache.st_mode & S_ISVTX)
|
|
FT_RETURNYES;
|
|
break;
|
|
#endif
|
|
}
|
|
FT_RETURNNO;
|
|
}
|
|
|
|
PP(pp_ftlink)
|
|
{
|
|
I32 result;
|
|
|
|
tryAMAGICftest_MG('l');
|
|
result = my_lstat_flags(0);
|
|
|
|
if (result < 0)
|
|
FT_RETURNUNDEF;
|
|
if (S_ISLNK(PL_statcache.st_mode))
|
|
FT_RETURNYES;
|
|
FT_RETURNNO;
|
|
}
|
|
|
|
PP(pp_fttty)
|
|
{
|
|
int fd;
|
|
GV *gv;
|
|
char *name = NULL;
|
|
STRLEN namelen;
|
|
UV uv;
|
|
|
|
tryAMAGICftest_MG('t');
|
|
|
|
if (PL_op->op_flags & OPf_REF)
|
|
gv = cGVOP_gv;
|
|
else {
|
|
SV *tmpsv = *PL_stack_sp;
|
|
if (!(gv = MAYBE_DEREF_GV_nomg(tmpsv))) {
|
|
name = SvPV_nomg(tmpsv, namelen);
|
|
gv = gv_fetchpvn_flags(name, namelen, SvUTF8(tmpsv), SVt_PVIO);
|
|
}
|
|
}
|
|
|
|
if (GvIO(gv) && IoIFP(GvIOp(gv)))
|
|
fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
|
|
else if (name && isDIGIT(*name) && grok_atoUV(name, &uv, NULL) && uv <= PERL_INT_MAX)
|
|
fd = (int)uv;
|
|
else
|
|
fd = -1;
|
|
if (fd < 0) {
|
|
SETERRNO(EBADF,RMS_IFI);
|
|
FT_RETURNUNDEF;
|
|
}
|
|
if (PerlLIO_isatty(fd))
|
|
FT_RETURNYES;
|
|
FT_RETURNNO;
|
|
}
|
|
|
|
|
|
/* also used for: pp_ftbinary() */
|
|
|
|
PP(pp_fttext)
|
|
{
|
|
I32 i;
|
|
SSize_t len;
|
|
I32 odd = 0;
|
|
STDCHAR tbuf[512];
|
|
STDCHAR *s;
|
|
IO *io;
|
|
SV *sv = NULL;
|
|
GV *gv;
|
|
PerlIO *fp;
|
|
const U8 * first_variant;
|
|
|
|
tryAMAGICftest_MG(PL_op->op_type == OP_FTTEXT ? 'T' : 'B');
|
|
|
|
if (PL_op->op_flags & OPf_REF)
|
|
gv = cGVOP_gv;
|
|
else if ((PL_op->op_private & (OPpFT_STACKED|OPpFT_AFTER_t))
|
|
== OPpFT_STACKED)
|
|
gv = PL_defgv;
|
|
else {
|
|
sv = *PL_stack_sp;
|
|
gv = MAYBE_DEREF_GV_nomg(sv);
|
|
}
|
|
|
|
if (gv) {
|
|
if (gv == PL_defgv) {
|
|
if (PL_statgv)
|
|
io = SvTYPE(PL_statgv) == SVt_PVIO
|
|
? (IO *)PL_statgv
|
|
: GvIO(PL_statgv);
|
|
else {
|
|
goto really_filename;
|
|
}
|
|
}
|
|
else {
|
|
PL_statgv = gv;
|
|
SvPVCLEAR(PL_statname);
|
|
io = GvIO(PL_statgv);
|
|
}
|
|
PL_laststatval = -1;
|
|
PL_laststype = OP_STAT;
|
|
if (io && IoIFP(io)) {
|
|
int fd;
|
|
if (! PerlIO_has_base(IoIFP(io)))
|
|
DIE(aTHX_ "-T and -B not implemented on filehandles");
|
|
fd = PerlIO_fileno(IoIFP(io));
|
|
if (fd < 0) {
|
|
SETERRNO(EBADF,RMS_IFI);
|
|
FT_RETURNUNDEF;
|
|
}
|
|
PL_laststatval = PerlLIO_fstat(fd, &PL_statcache);
|
|
if (PL_laststatval < 0)
|
|
FT_RETURNUNDEF;
|
|
if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
|
|
if (PL_op->op_type == OP_FTTEXT)
|
|
FT_RETURNNO;
|
|
else
|
|
FT_RETURNYES;
|
|
}
|
|
if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
|
|
i = PerlIO_getc(IoIFP(io));
|
|
if (i != EOF)
|
|
(void)PerlIO_ungetc(IoIFP(io),i);
|
|
else
|
|
/* null file is anything */
|
|
FT_RETURNYES;
|
|
}
|
|
len = PerlIO_get_bufsiz(IoIFP(io));
|
|
s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
|
|
/* sfio can have large buffers - limit to 512 */
|
|
if (len > 512)
|
|
len = 512;
|
|
}
|
|
else {
|
|
SETERRNO(EBADF,RMS_IFI);
|
|
report_evil_fh(gv);
|
|
SETERRNO(EBADF,RMS_IFI);
|
|
FT_RETURNUNDEF;
|
|
}
|
|
}
|
|
else {
|
|
const char *file;
|
|
const char *temp;
|
|
STRLEN temp_len;
|
|
int fd;
|
|
|
|
assert(sv);
|
|
temp = SvPV_nomg_const(sv, temp_len);
|
|
sv_setpv(PL_statname, temp);
|
|
if (!IS_SAFE_PATHNAME(temp, temp_len, OP_NAME(PL_op))) {
|
|
PL_laststatval = -1;
|
|
PL_laststype = OP_STAT;
|
|
FT_RETURNUNDEF;
|
|
}
|
|
really_filename:
|
|
file = SvPVX_const(PL_statname);
|
|
PL_statgv = NULL;
|
|
if (!(fp = PerlIO_open(file, "r"))) {
|
|
if (!gv) {
|
|
PL_laststatval = -1;
|
|
PL_laststype = OP_STAT;
|
|
}
|
|
if (ckWARN(WARN_NEWLINE) && should_warn_nl(file)) {
|
|
/* PL_warn_nl is constant */
|
|
GCC_DIAG_IGNORE_STMT(-Wformat-nonliteral);
|
|
Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
|
|
GCC_DIAG_RESTORE_STMT;
|
|
}
|
|
FT_RETURNUNDEF;
|
|
}
|
|
PL_laststype = OP_STAT;
|
|
fd = PerlIO_fileno(fp);
|
|
if (fd < 0) {
|
|
(void)PerlIO_close(fp);
|
|
SETERRNO(EBADF,RMS_IFI);
|
|
FT_RETURNUNDEF;
|
|
}
|
|
PL_laststatval = PerlLIO_fstat(fd, &PL_statcache);
|
|
if (PL_laststatval < 0) {
|
|
dSAVE_ERRNO;
|
|
(void)PerlIO_close(fp);
|
|
RESTORE_ERRNO;
|
|
FT_RETURNUNDEF;
|
|
}
|
|
PerlIO_binmode(aTHX_ fp, '<', O_BINARY, NULL);
|
|
len = PerlIO_read(fp, tbuf, sizeof(tbuf));
|
|
(void)PerlIO_close(fp);
|
|
if (len <= 0) {
|
|
if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
|
|
FT_RETURNNO; /* special case NFS directories */
|
|
FT_RETURNYES; /* null file is anything */
|
|
}
|
|
s = tbuf;
|
|
}
|
|
|
|
/* now scan s to look for textiness */
|
|
|
|
#if defined(DOSISH) || defined(USEMYBINMODE)
|
|
/* ignore trailing ^Z on short files */
|
|
if (len && len < (I32)sizeof(tbuf) && tbuf[len-1] == 26)
|
|
--len;
|
|
#endif
|
|
|
|
assert(len);
|
|
if (! is_utf8_invariant_string_loc((U8 *) s, len, &first_variant)) {
|
|
|
|
/* Here contains a variant under UTF-8 . See if the entire string is
|
|
* UTF-8. */
|
|
if (is_utf8_fixed_width_buf_flags(first_variant,
|
|
len - ((char *) first_variant - (char *) s),
|
|
0))
|
|
{
|
|
if (PL_op->op_type == OP_FTTEXT) {
|
|
FT_RETURNYES;
|
|
}
|
|
else {
|
|
FT_RETURNNO;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Here, is not UTF-8 or is entirely ASCII. Look through the buffer for
|
|
* things that wouldn't be in ASCII text or rich ASCII text. Count these
|
|
* in 'odd' */
|
|
for (i = 0; i < len; i++, s++) {
|
|
if (!*s) { /* null never allowed in text */
|
|
odd += len;
|
|
break;
|
|
}
|
|
#ifdef USE_LOCALE_CTYPE
|
|
if (IN_LC_RUNTIME(LC_CTYPE)) {
|
|
if ( isPRINT_LC(*s) || isSPACE_LC(*s)) {
|
|
continue;
|
|
}
|
|
}
|
|
else
|
|
#endif
|
|
if ( isPRINT_A(*s)
|
|
/* VT occurs so rarely in text, that we consider it odd */
|
|
|| (isSPACE_A(*s) && *s != VT_NATIVE)
|
|
|
|
/* But there is a fair amount of backspaces and escapes in
|
|
* some text */
|
|
|| *s == '\b'
|
|
|| *s == ESC_NATIVE)
|
|
{
|
|
continue;
|
|
}
|
|
odd++;
|
|
}
|
|
|
|
if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
|
|
FT_RETURNNO;
|
|
else
|
|
FT_RETURNYES;
|
|
}
|
|
|
|
/* File calls. */
|
|
|
|
PP(pp_chdir)
|
|
{
|
|
dSP; dTARGET;
|
|
const char *tmps = NULL;
|
|
GV *gv = NULL;
|
|
|
|
if( MAXARG == 1 ) {
|
|
SV * const sv = POPs;
|
|
if (PL_op->op_flags & OPf_SPECIAL) {
|
|
gv = gv_fetchsv(sv, 0, SVt_PVIO);
|
|
if (!gv) {
|
|
if (ckWARN(WARN_UNOPENED)) {
|
|
Perl_warner(aTHX_ packWARN(WARN_UNOPENED),
|
|
"chdir() on unopened filehandle %" SVf, sv);
|
|
}
|
|
SETERRNO(EBADF,RMS_IFI);
|
|
PUSHs(&PL_sv_zero);
|
|
TAINT_PROPER("chdir");
|
|
RETURN;
|
|
}
|
|
}
|
|
else if (!(gv = MAYBE_DEREF_GV(sv)))
|
|
tmps = SvPV_nomg_const_nolen(sv);
|
|
}
|
|
else {
|
|
HV * const table = GvHVn(PL_envgv);
|
|
SV **svp;
|
|
|
|
EXTEND(SP, 1);
|
|
if ( (svp = hv_fetchs(table, "HOME", FALSE))
|
|
|| (svp = hv_fetchs(table, "LOGDIR", FALSE))
|
|
#ifdef VMS
|
|
|| (svp = hv_fetchs(table, "SYS$LOGIN", FALSE))
|
|
#endif
|
|
)
|
|
{
|
|
tmps = SvPV_nolen_const(*svp);
|
|
}
|
|
else {
|
|
PUSHs(&PL_sv_zero);
|
|
SETERRNO(EINVAL, LIB_INVARG);
|
|
TAINT_PROPER("chdir");
|
|
RETURN;
|
|
}
|
|
}
|
|
|
|
TAINT_PROPER("chdir");
|
|
if (gv) {
|
|
#ifdef HAS_FCHDIR
|
|
IO* const io = GvIO(gv);
|
|
if (io) {
|
|
if (IoDIRP(io)) {
|
|
PUSHi(fchdir(my_dirfd(IoDIRP(io))) >= 0);
|
|
} else if (IoIFP(io)) {
|
|
int fd = PerlIO_fileno(IoIFP(io));
|
|
if (fd < 0) {
|
|
goto nuts;
|
|
}
|
|
PUSHi(fchdir(fd) >= 0);
|
|
}
|
|
else {
|
|
goto nuts;
|
|
}
|
|
} else {
|
|
goto nuts;
|
|
}
|
|
|
|
#else
|
|
DIE(aTHX_ PL_no_func, "fchdir");
|
|
#endif
|
|
}
|
|
else
|
|
PUSHi( PerlDir_chdir(tmps) >= 0 );
|
|
#ifdef VMS
|
|
/* Clear the DEFAULT element of ENV so we'll get the new value
|
|
* in the future. */
|
|
hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
|
|
#endif
|
|
RETURN;
|
|
|
|
#ifdef HAS_FCHDIR
|
|
nuts:
|
|
report_evil_fh(gv);
|
|
SETERRNO(EBADF,RMS_IFI);
|
|
PUSHs(&PL_sv_zero);
|
|
RETURN;
|
|
#endif
|
|
}
|
|
|
|
|
|
/* also used for: pp_chmod() pp_kill() pp_unlink() pp_utime() */
|
|
|
|
PP(pp_chown)
|
|
{
|
|
dSP; dMARK; dTARGET;
|
|
const I32 value = (I32)apply(PL_op->op_type, MARK, SP);
|
|
|
|
SP = MARK;
|
|
XPUSHi(value);
|
|
RETURN;
|
|
}
|
|
|
|
PP(pp_chroot)
|
|
{
|
|
#ifdef HAS_CHROOT
|
|
dSP; dTARGET;
|
|
char * const tmps = POPpx;
|
|
TAINT_PROPER("chroot");
|
|
PUSHi( chroot(tmps) >= 0 );
|
|
RETURN;
|
|
#else
|
|
DIE(aTHX_ PL_no_func, "chroot");
|
|
#endif
|
|
}
|
|
|
|
PP(pp_rename)
|
|
{
|
|
dSP; dTARGET;
|
|
int anum;
|
|
#ifndef HAS_RENAME
|
|
Stat_t statbuf;
|
|
#endif
|
|
const char * const tmps2 = POPpconstx;
|
|
const char * const tmps = SvPV_nolen_const(TOPs);
|
|
TAINT_PROPER("rename");
|
|
#ifdef HAS_RENAME
|
|
anum = PerlLIO_rename(tmps, tmps2);
|
|
#else
|
|
if (!(anum = PerlLIO_stat(tmps, &statbuf))) {
|
|
if (same_dirent(tmps2, tmps)) /* can always rename to same name */
|
|
anum = 1;
|
|
else {
|
|
if (PerlProc_geteuid() || PerlLIO_stat(tmps2, &statbuf) < 0 || !S_ISDIR(statbuf.st_mode))
|
|
(void)UNLINK(tmps2);
|
|
if (!(anum = link(tmps, tmps2)))
|
|
anum = UNLINK(tmps);
|
|
}
|
|
}
|
|
#endif
|
|
SETi( anum >= 0 );
|
|
RETURN;
|
|
}
|
|
|
|
|
|
/* also used for: pp_symlink() */
|
|
|
|
#if defined(HAS_LINK) || defined(HAS_SYMLINK)
|
|
PP(pp_link)
|
|
{
|
|
dSP; dTARGET;
|
|
const int op_type = PL_op->op_type;
|
|
int result;
|
|
|
|
# ifndef HAS_LINK
|
|
if (op_type == OP_LINK)
|
|
DIE(aTHX_ PL_no_func, "link");
|
|
# endif
|
|
# ifndef HAS_SYMLINK
|
|
if (op_type == OP_SYMLINK)
|
|
DIE(aTHX_ PL_no_func, "symlink");
|
|
# endif
|
|
|
|
{
|
|
const char * const tmps2 = POPpconstx;
|
|
const char * const tmps = SvPV_nolen_const(TOPs);
|
|
TAINT_PROPER(PL_op_desc[op_type]);
|
|
result =
|
|
# if defined(HAS_LINK) && defined(HAS_SYMLINK)
|
|
/* Both present - need to choose which. */
|
|
(op_type == OP_LINK) ?
|
|
PerlLIO_link(tmps, tmps2) : symlink(tmps, tmps2);
|
|
# elif defined(HAS_LINK)
|
|
/* Only have link, so calls to pp_symlink will have DIE()d above. */
|
|
PerlLIO_link(tmps, tmps2);
|
|
# elif defined(HAS_SYMLINK)
|
|
/* Only have symlink, so calls to pp_link will have DIE()d above. */
|
|
symlink(tmps, tmps2);
|
|
# endif
|
|
}
|
|
|
|
SETi( result >= 0 );
|
|
RETURN;
|
|
}
|
|
#else
|
|
|
|
/* also used for: pp_symlink() */
|
|
|
|
PP(pp_link)
|
|
{
|
|
/* Have neither. */
|
|
DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
|
|
}
|
|
#endif
|
|
|
|
PP(pp_readlink)
|
|
{
|
|
dSP;
|
|
#ifdef HAS_SYMLINK
|
|
dTARGET;
|
|
const char *tmps;
|
|
char buf[MAXPATHLEN];
|
|
SSize_t len;
|
|
|
|
TAINT;
|
|
tmps = POPpconstx;
|
|
/* NOTE: if the length returned by readlink() is sizeof(buf) - 1,
|
|
* it is impossible to know whether the result was truncated. */
|
|
len = readlink(tmps, buf, sizeof(buf) - 1);
|
|
if (len < 0)
|
|
RETPUSHUNDEF;
|
|
buf[len] = '\0';
|
|
PUSHp(buf, len);
|
|
RETURN;
|
|
#else
|
|
EXTEND(SP, 1);
|
|
RETSETUNDEF; /* just pretend it's a normal file */
|
|
#endif
|
|
}
|
|
|
|
#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
|
|
STATIC int
|
|
S_dooneliner(pTHX_ const char *cmd, const char *filename)
|
|
{
|
|
char * const save_filename = filename;
|
|
char *cmdline;
|
|
char *s;
|
|
PerlIO *myfp;
|
|
int anum = 1;
|
|
Size_t size = strlen(cmd) + (strlen(filename) * 2) + 10;
|
|
|
|
PERL_ARGS_ASSERT_DOONELINER;
|
|
|
|
Newx(cmdline, size, char);
|
|
my_strlcpy(cmdline, cmd, size);
|
|
my_strlcat(cmdline, " ", size);
|
|
for (s = cmdline + strlen(cmdline); *filename; ) {
|
|
*s++ = '\\';
|
|
*s++ = *filename++;
|
|
}
|
|
if (s - cmdline < size)
|
|
my_strlcpy(s, " 2>&1", size - (s - cmdline));
|
|
myfp = PerlProc_popen(cmdline, "r");
|
|
Safefree(cmdline);
|
|
|
|
if (myfp) {
|
|
SV * const tmpsv = sv_newmortal();
|
|
/* Need to save/restore 'PL_rs' ?? */
|
|
s = sv_gets(tmpsv, myfp, 0);
|
|
(void)PerlProc_pclose(myfp);
|
|
if (s != NULL) {
|
|
int e;
|
|
for (e = 1;
|
|
#ifdef HAS_SYS_ERRLIST
|
|
e <= sys_nerr
|
|
#endif
|
|
; e++)
|
|
{
|
|
/* you don't see this */
|
|
const char * const errmsg = Strerror(e) ;
|
|
if (!errmsg)
|
|
break;
|
|
if (instr(s, errmsg)) {
|
|
SETERRNO(e,0);
|
|
return 0;
|
|
}
|
|
}
|
|
SETERRNO(0,0);
|
|
#ifndef EACCES
|
|
#define EACCES EPERM
|
|
#endif
|
|
if (instr(s, "cannot make"))
|
|
SETERRNO(EEXIST,RMS_FEX);
|
|
else if (instr(s, "existing file"))
|
|
SETERRNO(EEXIST,RMS_FEX);
|
|
else if (instr(s, "ile exists"))
|
|
SETERRNO(EEXIST,RMS_FEX);
|
|
else if (instr(s, "non-exist"))
|
|
SETERRNO(ENOENT,RMS_FNF);
|
|
else if (instr(s, "does not exist"))
|
|
SETERRNO(ENOENT,RMS_FNF);
|
|
else if (instr(s, "not empty"))
|
|
SETERRNO(EBUSY,SS_DEVOFFLINE);
|
|
else if (instr(s, "cannot access"))
|
|
SETERRNO(EACCES,RMS_PRV);
|
|
else
|
|
SETERRNO(EPERM,RMS_PRV);
|
|
return 0;
|
|
}
|
|
else { /* some mkdirs return no failure indication */
|
|
Stat_t statbuf;
|
|
anum = (PerlLIO_stat(save_filename, &statbuf) >= 0);
|
|
if (PL_op->op_type == OP_RMDIR)
|
|
anum = !anum;
|
|
if (anum)
|
|
SETERRNO(0,0);
|
|
else
|
|
SETERRNO(EACCES,RMS_PRV); /* a guess */
|
|
}
|
|
return anum;
|
|
}
|
|
else
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/* This macro removes trailing slashes from a directory name.
|
|
* Different operating and file systems take differently to
|
|
* trailing slashes. According to POSIX 1003.1 1996 Edition
|
|
* any number of trailing slashes should be allowed.
|
|
* Thusly we snip them away so that even non-conforming
|
|
* systems are happy.
|
|
* We should probably do this "filtering" for all
|
|
* the functions that expect (potentially) directory names:
|
|
* -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
|
|
* (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
|
|
|
|
#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
|
|
if ((len) > 1 && (tmps)[(len)-1] == '/') { \
|
|
do { \
|
|
(len)--; \
|
|
} while ((len) > 1 && (tmps)[(len)-1] == '/'); \
|
|
(tmps) = savepvn((tmps), (len)); \
|
|
(copy) = TRUE; \
|
|
}
|
|
|
|
PP(pp_mkdir)
|
|
{
|
|
dSP; dTARGET;
|
|
STRLEN len;
|
|
const char *tmps;
|
|
bool copy = FALSE;
|
|
const unsigned int mode = (MAXARG > 1 && (TOPs||((void)POPs,0))) ? POPu : 0777;
|
|
|
|
TRIMSLASHES(tmps,len,copy);
|
|
|
|
TAINT_PROPER("mkdir");
|
|
#ifdef HAS_MKDIR
|
|
SETi( PerlDir_mkdir(tmps, mode) >= 0 );
|
|
#else
|
|
{
|
|
int oldumask;
|
|
SETi( dooneliner("mkdir", tmps) );
|
|
oldumask = PerlLIO_umask(0);
|
|
PerlLIO_umask(oldumask);
|
|
PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
|
|
}
|
|
#endif
|
|
if (copy)
|
|
Safefree(tmps);
|
|
RETURN;
|
|
}
|
|
|
|
PP(pp_rmdir)
|
|
{
|
|
dSP; dTARGET;
|
|
STRLEN len;
|
|
const char *tmps;
|
|
bool copy = FALSE;
|
|
|
|
TRIMSLASHES(tmps,len,copy);
|
|
TAINT_PROPER("rmdir");
|
|
#ifdef HAS_RMDIR
|
|
SETi( PerlDir_rmdir(tmps) >= 0 );
|
|
#else
|
|
SETi( dooneliner("rmdir", tmps) );
|
|
#endif
|
|
if (copy)
|
|
Safefree(tmps);
|
|
RETURN;
|
|
}
|
|
|
|
/* Directory calls. */
|
|
|
|
PP(pp_open_dir)
|
|
{
|
|
#if defined(Direntry_t) && defined(HAS_READDIR)
|
|
dSP;
|
|
const char * const dirname = POPpconstx;
|
|
GV * const gv = MUTABLE_GV(POPs);
|
|
IO * const io = GvIOn(gv);
|
|
|
|
if ((IoIFP(io) || IoOFP(io)))
|
|
Perl_croak(aTHX_ "Cannot open %" HEKf " as a dirhandle: it is already open as a filehandle",
|
|
HEKfARG(GvENAME_HEK(gv)));
|
|
if (IoDIRP(io))
|
|
PerlDir_close(IoDIRP(io));
|
|
if (!(IoDIRP(io) = PerlDir_open(dirname)))
|
|
goto nope;
|
|
|
|
RETPUSHYES;
|
|
nope:
|
|
if (!errno)
|
|
SETERRNO(EBADF,RMS_DIR);
|
|
RETPUSHUNDEF;
|
|
#else
|
|
DIE(aTHX_ PL_no_dir_func, "opendir");
|
|
#endif
|
|
}
|
|
|
|
PP(pp_readdir)
|
|
{
|
|
#if !defined(Direntry_t) || !defined(HAS_READDIR)
|
|
DIE(aTHX_ PL_no_dir_func, "readdir");
|
|
#else
|
|
#if !defined(I_DIRENT) && !defined(VMS)
|
|
Direntry_t *readdir (DIR *);
|
|
#endif
|
|
dSP;
|
|
|
|
SV *sv;
|
|
const U8 gimme = GIMME_V;
|
|
GV * const gv = MUTABLE_GV(POPs);
|
|
const Direntry_t *dp;
|
|
IO * const io = GvIOn(gv);
|
|
|
|
if (!IoDIRP(io)) {
|
|
Perl_ck_warner(aTHX_ packWARN(WARN_IO),
|
|
"readdir() attempted on invalid dirhandle %" HEKf,
|
|
HEKfARG(GvENAME_HEK(gv)));
|
|
goto nope;
|
|
}
|
|
|
|
do {
|
|
dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
|
|
if (!dp)
|
|
break;
|
|
#ifdef DIRNAMLEN
|
|
sv = newSVpvn(dp->d_name, dp->d_namlen);
|
|
#else
|
|
sv = newSVpv(dp->d_name, 0);
|
|
#endif
|
|
if (!(IoFLAGS(io) & IOf_UNTAINT))
|
|
SvTAINTED_on(sv);
|
|
mXPUSHs(sv);
|
|
} while (gimme == G_ARRAY);
|
|
|
|
if (!dp && gimme != G_ARRAY)
|
|
RETPUSHUNDEF;
|
|
|
|
RETURN;
|
|
|
|
nope:
|
|
if (!errno)
|
|
SETERRNO(EBADF,RMS_ISI);
|
|
if (gimme == G_ARRAY)
|
|
RETURN;
|
|
else
|
|
RETPUSHUNDEF;
|
|
#endif
|
|
}
|
|
|
|
PP(pp_telldir)
|
|
{
|
|
#if defined(HAS_TELLDIR) || defined(telldir)
|
|
dSP; dTARGET;
|
|
/* XXX does _anyone_ need this? --AD 2/20/1998 */
|
|
/* XXX netbsd still seemed to.
|
|
XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
|
|
--JHI 1999-Feb-02 */
|
|
# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
|
|
long telldir (DIR *);
|
|
# endif
|
|
GV * const gv = MUTABLE_GV(POPs);
|
|
IO * const io = GvIOn(gv);
|
|
|
|
if (!IoDIRP(io)) {
|
|
Perl_ck_warner(aTHX_ packWARN(WARN_IO),
|
|
"telldir() attempted on invalid dirhandle %" HEKf,
|
|
HEKfARG(GvENAME_HEK(gv)));
|
|
goto nope;
|
|
}
|
|
|
|
PUSHi( PerlDir_tell(IoDIRP(io)) );
|
|
RETURN;
|
|
nope:
|
|
if (!errno)
|
|
SETERRNO(EBADF,RMS_ISI);
|
|
RETPUSHUNDEF;
|
|
#else
|
|
DIE(aTHX_ PL_no_dir_func, "telldir");
|
|
#endif
|
|
}
|
|
|
|
PP(pp_seekdir)
|
|
{
|
|
#if defined(HAS_SEEKDIR) || defined(seekdir)
|
|
dSP;
|
|
const long along = POPl;
|
|
GV * const gv = MUTABLE_GV(POPs);
|
|
IO * const io = GvIOn(gv);
|
|
|
|
if (!IoDIRP(io)) {
|
|
Perl_ck_warner(aTHX_ packWARN(WARN_IO),
|
|
"seekdir() attempted on invalid dirhandle %" HEKf,
|
|
HEKfARG(GvENAME_HEK(gv)));
|
|
goto nope;
|
|
}
|
|
(void)PerlDir_seek(IoDIRP(io), along);
|
|
|
|
RETPUSHYES;
|
|
nope:
|
|
if (!errno)
|
|
SETERRNO(EBADF,RMS_ISI);
|
|
RETPUSHUNDEF;
|
|
#else
|
|
DIE(aTHX_ PL_no_dir_func, "seekdir");
|
|
#endif
|
|
}
|
|
|
|
PP(pp_rewinddir)
|
|
{
|
|
#if defined(HAS_REWINDDIR) || defined(rewinddir)
|
|
dSP;
|
|
GV * const gv = MUTABLE_GV(POPs);
|
|
IO * const io = GvIOn(gv);
|
|
|
|
if (!IoDIRP(io)) {
|
|
Perl_ck_warner(aTHX_ packWARN(WARN_IO),
|
|
"rewinddir() attempted on invalid dirhandle %" HEKf,
|
|
HEKfARG(GvENAME_HEK(gv)));
|
|
goto nope;
|
|
}
|
|
(void)PerlDir_rewind(IoDIRP(io));
|
|
RETPUSHYES;
|
|
nope:
|
|
if (!errno)
|
|
SETERRNO(EBADF,RMS_ISI);
|
|
RETPUSHUNDEF;
|
|
#else
|
|
DIE(aTHX_ PL_no_dir_func, "rewinddir");
|
|
#endif
|
|
}
|
|
|
|
PP(pp_closedir)
|
|
{
|
|
#if defined(Direntry_t) && defined(HAS_READDIR)
|
|
dSP;
|
|
GV * const gv = MUTABLE_GV(POPs);
|
|
IO * const io = GvIOn(gv);
|
|
|
|
if (!IoDIRP(io)) {
|
|
Perl_ck_warner(aTHX_ packWARN(WARN_IO),
|
|
"closedir() attempted on invalid dirhandle %" HEKf,
|
|
HEKfARG(GvENAME_HEK(gv)));
|
|
goto nope;
|
|
}
|
|
#ifdef VOID_CLOSEDIR
|
|
PerlDir_close(IoDIRP(io));
|
|
#else
|
|
if (PerlDir_close(IoDIRP(io)) < 0) {
|
|
IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
|
|
goto nope;
|
|
}
|
|
#endif
|
|
IoDIRP(io) = 0;
|
|
|
|
RETPUSHYES;
|
|
nope:
|
|
if (!errno)
|
|
SETERRNO(EBADF,RMS_IFI);
|
|
RETPUSHUNDEF;
|
|
#else
|
|
DIE(aTHX_ PL_no_dir_func, "closedir");
|
|
#endif
|
|
}
|
|
|
|
/* Process control. */
|
|
|
|
PP(pp_fork)
|
|
{
|
|
#ifdef HAS_FORK
|
|
dSP; dTARGET;
|
|
Pid_t childpid;
|
|
#ifdef HAS_SIGPROCMASK
|
|
sigset_t oldmask, newmask;
|
|
#endif
|
|
|
|
EXTEND(SP, 1);
|
|
PERL_FLUSHALL_FOR_CHILD;
|
|
#ifdef HAS_SIGPROCMASK
|
|
sigfillset(&newmask);
|
|
sigprocmask(SIG_SETMASK, &newmask, &oldmask);
|
|
#endif
|
|
childpid = PerlProc_fork();
|
|
if (childpid == 0) {
|
|
int sig;
|
|
PL_sig_pending = 0;
|
|
if (PL_psig_pend)
|
|
for (sig = 1; sig < SIG_SIZE; sig++)
|
|
PL_psig_pend[sig] = 0;
|
|
}
|
|
#ifdef HAS_SIGPROCMASK
|
|
{
|
|
dSAVE_ERRNO;
|
|
sigprocmask(SIG_SETMASK, &oldmask, NULL);
|
|
RESTORE_ERRNO;
|
|
}
|
|
#endif
|
|
if (childpid < 0)
|
|
RETPUSHUNDEF;
|
|
if (!childpid) {
|
|
#ifdef PERL_USES_PL_PIDSTATUS
|
|
hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
|
|
#endif
|
|
}
|
|
PUSHi(childpid);
|
|
RETURN;
|
|
#elif (defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)) || defined(__amigaos4__)
|
|
dSP; dTARGET;
|
|
Pid_t childpid;
|
|
|
|
EXTEND(SP, 1);
|
|
PERL_FLUSHALL_FOR_CHILD;
|
|
childpid = PerlProc_fork();
|
|
if (childpid == -1)
|
|
RETPUSHUNDEF;
|
|
PUSHi(childpid);
|
|
RETURN;
|
|
#else
|
|
DIE(aTHX_ PL_no_func, "fork");
|
|
#endif
|
|
}
|
|
|
|
PP(pp_wait)
|
|
{
|
|
#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(__LIBCATAMOUNT__)
|
|
dSP; dTARGET;
|
|
Pid_t childpid;
|
|
int argflags;
|
|
|
|
if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
|
|
childpid = wait4pid(-1, &argflags, 0);
|
|
else {
|
|
while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
|
|
errno == EINTR) {
|
|
PERL_ASYNC_CHECK();
|
|
}
|
|
}
|
|
# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
|
|
/* 0 and -1 are both error returns (the former applies to WNOHANG case) */
|
|
STATUS_NATIVE_CHILD_SET((childpid && childpid != -1) ? argflags : -1);
|
|
# else
|
|
STATUS_NATIVE_CHILD_SET((childpid > 0) ? argflags : -1);
|
|
# endif
|
|
XPUSHi(childpid);
|
|
RETURN;
|
|
#else
|
|
DIE(aTHX_ PL_no_func, "wait");
|
|
#endif
|
|
}
|
|
|
|
PP(pp_waitpid)
|
|
{
|
|
#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(__LIBCATAMOUNT__)
|
|
dSP; dTARGET;
|
|
const int optype = POPi;
|
|
const Pid_t pid = TOPi;
|
|
Pid_t result;
|
|
#ifdef __amigaos4__
|
|
int argflags = 0;
|
|
result = amigaos_waitpid(aTHX_ optype, pid, &argflags);
|
|
STATUS_NATIVE_CHILD_SET((result >= 0) ? argflags : -1);
|
|
result = result == 0 ? pid : -1;
|
|
#else
|
|
int argflags;
|
|
|
|
if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
|
|
result = wait4pid(pid, &argflags, optype);
|
|
else {
|
|
while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
|
|
errno == EINTR) {
|
|
PERL_ASYNC_CHECK();
|
|
}
|
|
}
|
|
# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
|
|
/* 0 and -1 are both error returns (the former applies to WNOHANG case) */
|
|
STATUS_NATIVE_CHILD_SET((result && result != -1) ? argflags : -1);
|
|
# else
|
|
STATUS_NATIVE_CHILD_SET((result > 0) ? argflags : -1);
|
|
# endif
|
|
# endif /* __amigaos4__ */
|
|
SETi(result);
|
|
RETURN;
|
|
#else
|
|
DIE(aTHX_ PL_no_func, "waitpid");
|
|
#endif
|
|
}
|
|
|
|
PP(pp_system)
|
|
{
|
|
dSP; dMARK; dORIGMARK; dTARGET;
|
|
#if defined(__LIBCATAMOUNT__)
|
|
PL_statusvalue = -1;
|
|
SP = ORIGMARK;
|
|
XPUSHi(-1);
|
|
#else
|
|
I32 value;
|
|
# ifdef __amigaos4__
|
|
void * result;
|
|
# else
|
|
int result;
|
|
# endif
|
|
|
|
while (++MARK <= SP) {
|
|
SV *origsv = *MARK, *copysv;
|
|
STRLEN len;
|
|
char *pv;
|
|
SvGETMAGIC(origsv);
|
|
#if defined(WIN32) || defined(__VMS)
|
|
/*
|
|
* Because of a nasty platform-specific variation on the meaning
|
|
* of arguments to this op, we must preserve numeric arguments
|
|
* as numeric, not just retain the string value.
|
|
*/
|
|
if (SvNIOK(origsv) || SvNIOKp(origsv)) {
|
|
copysv = newSV_type(SVt_PVNV);
|
|
sv_2mortal(copysv);
|
|
if (SvPOK(origsv) || SvPOKp(origsv)) {
|
|
pv = SvPV_nomg(origsv, len);
|
|
sv_setpvn(copysv, pv, len);
|
|
SvPOK_off(copysv);
|
|
}
|
|
if (SvIOK(origsv) || SvIOKp(origsv))
|
|
SvIV_set(copysv, SvIVX(origsv));
|
|
if (SvNOK(origsv) || SvNOKp(origsv))
|
|
SvNV_set(copysv, SvNVX(origsv));
|
|
SvFLAGS(copysv) |= SvFLAGS(origsv) &
|
|
(SVf_IOK|SVf_NOK|SVf_POK|SVp_IOK|SVp_NOK|SVp_POK|
|
|
SVf_UTF8|SVf_IVisUV);
|
|
} else
|
|
#endif
|
|
{
|
|
pv = SvPV_nomg(origsv, len);
|
|
copysv = newSVpvn_flags(pv, len,
|
|
(SvFLAGS(origsv) & SVf_UTF8) | SVs_TEMP);
|
|
}
|
|
*MARK = copysv;
|
|
}
|
|
MARK = ORIGMARK;
|
|
|
|
if (TAINTING_get) {
|
|
TAINT_ENV();
|
|
TAINT_PROPER("system");
|
|
}
|
|
PERL_FLUSHALL_FOR_CHILD;
|
|
#if (defined(HAS_FORK) || defined(__amigaos4__)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
|
|
{
|
|
#ifdef __amigaos4__
|
|
struct UserData userdata;
|
|
pthread_t proc;
|
|
#else
|
|
Pid_t childpid;
|
|
#endif
|
|
int pp[2];
|
|
I32 did_pipes = 0;
|
|
bool child_success = FALSE;
|
|
#ifdef HAS_SIGPROCMASK
|
|
sigset_t newset, oldset;
|
|
#endif
|
|
|
|
if (PerlProc_pipe_cloexec(pp) >= 0)
|
|
did_pipes = 1;
|
|
#ifdef __amigaos4__
|
|
amigaos_fork_set_userdata(aTHX_
|
|
&userdata,
|
|
did_pipes,
|
|
pp[1],
|
|
SP,
|
|
mark);
|
|
pthread_create(&proc,NULL,amigaos_system_child,(void *)&userdata);
|
|
child_success = proc > 0;
|
|
#else
|
|
#ifdef HAS_SIGPROCMASK
|
|
sigemptyset(&newset);
|
|
sigaddset(&newset, SIGCHLD);
|
|
sigprocmask(SIG_BLOCK, &newset, &oldset);
|
|
#endif
|
|
while ((childpid = PerlProc_fork()) == -1) {
|
|
if (errno != EAGAIN) {
|
|
value = -1;
|
|
SP = ORIGMARK;
|
|
XPUSHi(value);
|
|
if (did_pipes) {
|
|
PerlLIO_close(pp[0]);
|
|
PerlLIO_close(pp[1]);
|
|
}
|
|
#ifdef HAS_SIGPROCMASK
|
|
sigprocmask(SIG_SETMASK, &oldset, NULL);
|
|
#endif
|
|
RETURN;
|
|
}
|
|
sleep(5);
|
|
}
|
|
child_success = childpid > 0;
|
|
#endif
|
|
if (child_success) {
|
|
Sigsave_t ihand,qhand; /* place to save signals during system() */
|
|
int status;
|
|
|
|
#ifndef __amigaos4__
|
|
if (did_pipes)
|
|
PerlLIO_close(pp[1]);
|
|
#endif
|
|
#ifndef PERL_MICRO
|
|
rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand);
|
|
rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand);
|
|
#endif
|
|
#ifdef __amigaos4__
|
|
result = pthread_join(proc, (void **)&status);
|
|
#else
|
|
do {
|
|
result = wait4pid(childpid, &status, 0);
|
|
} while (result == -1 && errno == EINTR);
|
|
#endif
|
|
#ifndef PERL_MICRO
|
|
#ifdef HAS_SIGPROCMASK
|
|
sigprocmask(SIG_SETMASK, &oldset, NULL);
|
|
#endif
|
|
(void)rsignal_restore(SIGINT, &ihand);
|
|
(void)rsignal_restore(SIGQUIT, &qhand);
|
|
#endif
|
|
STATUS_NATIVE_CHILD_SET(result == -1 ? -1 : status);
|
|
SP = ORIGMARK;
|
|
if (did_pipes) {
|
|
int errkid;
|
|
unsigned n = 0;
|
|
|
|
while (n < sizeof(int)) {
|
|
const SSize_t n1 = PerlLIO_read(pp[0],
|
|
(void*)(((char*)&errkid)+n),
|
|
(sizeof(int)) - n);
|
|
if (n1 <= 0)
|
|
break;
|
|
n += n1;
|
|
}
|
|
PerlLIO_close(pp[0]);
|
|
if (n) { /* Error */
|
|
if (n != sizeof(int))
|
|
DIE(aTHX_ "panic: kid popen errno read, n=%u", n);
|
|
errno = errkid; /* Propagate errno from kid */
|
|
#ifdef __amigaos4__
|
|
/* The pipe always has something in it
|
|
* so n alone is not enough. */
|
|
if (errno > 0)
|
|
#endif
|
|
{
|
|
STATUS_NATIVE_CHILD_SET(-1);
|
|
}
|
|
}
|
|
}
|
|
XPUSHi(STATUS_CURRENT);
|
|
RETURN;
|
|
}
|
|
#ifndef __amigaos4__
|
|
#ifdef HAS_SIGPROCMASK
|
|
sigprocmask(SIG_SETMASK, &oldset, NULL);
|
|
#endif
|
|
if (did_pipes)
|
|
PerlLIO_close(pp[0]);
|
|
if (PL_op->op_flags & OPf_STACKED) {
|
|
SV * const really = *++MARK;
|
|
value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
|
|
}
|
|
else if (SP - MARK != 1)
|
|
value = (I32)do_aexec5(NULL, MARK, SP, pp[1], did_pipes);
|
|
else {
|
|
value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
|
|
}
|
|
#endif /* __amigaos4__ */
|
|
PerlProc__exit(-1);
|
|
}
|
|
#else /* ! FORK or VMS or OS/2 */
|
|
PL_statusvalue = 0;
|
|
result = 0;
|
|
if (PL_op->op_flags & OPf_STACKED) {
|
|
SV * const really = *++MARK;
|
|
# if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__) || defined(__VMS)
|
|
value = (I32)do_aspawn(really, MARK, SP);
|
|
# else
|
|
value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
|
|
# endif
|
|
}
|
|
else if (SP - MARK != 1) {
|
|
# if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__) || defined(__VMS)
|
|
value = (I32)do_aspawn(NULL, MARK, SP);
|
|
# else
|
|
value = (I32)do_aspawn(NULL, (void **)MARK, (void **)SP);
|
|
# endif
|
|
}
|
|
else {
|
|
value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
|
|
}
|
|
if (PL_statusvalue == -1) /* hint that value must be returned as is */
|
|
result = 1;
|
|
STATUS_NATIVE_CHILD_SET(value);
|
|
SP = ORIGMARK;
|
|
XPUSHi(result ? value : STATUS_CURRENT);
|
|
#endif /* !FORK or VMS or OS/2 */
|
|
#endif
|
|
RETURN;
|
|
}
|
|
|
|
PP(pp_exec)
|
|
{
|
|
dSP; dMARK; dORIGMARK; dTARGET;
|
|
I32 value;
|
|
|
|
if (TAINTING_get) {
|
|
TAINT_ENV();
|
|
while (++MARK <= SP) {
|
|
(void)SvPV_nolen_const(*MARK); /* stringify for taint check */
|
|
if (TAINT_get)
|
|
break;
|
|
}
|
|
MARK = ORIGMARK;
|
|
TAINT_PROPER("exec");
|
|
}
|
|
|
|
PERL_FLUSHALL_FOR_CHILD;
|
|
if (PL_op->op_flags & OPf_STACKED) {
|
|
SV * const really = *++MARK;
|
|
value = (I32)do_aexec(really, MARK, SP);
|
|
}
|
|
else if (SP - MARK != 1)
|
|
#ifdef VMS
|
|
value = (I32)vms_do_aexec(NULL, MARK, SP);
|
|
#else
|
|
value = (I32)do_aexec(NULL, MARK, SP);
|
|
#endif
|
|
else {
|
|
#ifdef VMS
|
|
value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
|
|
#else
|
|
value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
|
|
#endif
|
|
}
|
|
SP = ORIGMARK;
|
|
XPUSHi(value);
|
|
RETURN;
|
|
}
|
|
|
|
PP(pp_getppid)
|
|
{
|
|
#ifdef HAS_GETPPID
|
|
dSP; dTARGET;
|
|
XPUSHi( getppid() );
|
|
RETURN;
|
|
#else
|
|
DIE(aTHX_ PL_no_func, "getppid");
|
|
#endif
|
|
}
|
|
|
|
PP(pp_getpgrp)
|
|
{
|
|
#ifdef HAS_GETPGRP
|
|
dSP; dTARGET;
|
|
Pid_t pgrp;
|
|
const Pid_t pid =
|
|
(MAXARG < 1) ? 0 : TOPs ? SvIVx(POPs) : ((void)POPs, 0);
|
|
|
|
#ifdef BSD_GETPGRP
|
|
pgrp = (I32)BSD_GETPGRP(pid);
|
|
#else
|
|
if (pid != 0 && pid != PerlProc_getpid())
|
|
DIE(aTHX_ "POSIX getpgrp can't take an argument");
|
|
pgrp = getpgrp();
|
|
#endif
|
|
XPUSHi(pgrp);
|
|
RETURN;
|
|
#else
|
|
DIE(aTHX_ PL_no_func, "getpgrp");
|
|
#endif
|
|
}
|
|
|
|
PP(pp_setpgrp)
|
|
{
|
|
#ifdef HAS_SETPGRP
|
|
dSP; dTARGET;
|
|
Pid_t pgrp;
|
|
Pid_t pid;
|
|
pgrp = MAXARG == 2 && (TOPs||POPs) ? POPi : 0;
|
|
if (MAXARG > 0) pid = TOPs ? TOPi : 0;
|
|
else {
|
|
pid = 0;
|
|
EXTEND(SP,1);
|
|
SP++;
|
|
}
|
|
|
|
TAINT_PROPER("setpgrp");
|
|
#ifdef BSD_SETPGRP
|
|
SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
|
|
#else
|
|
if ((pgrp != 0 && pgrp != PerlProc_getpid())
|
|
|| (pid != 0 && pid != PerlProc_getpid()))
|
|
{
|
|
DIE(aTHX_ "setpgrp can't take arguments");
|
|
}
|
|
SETi( setpgrp() >= 0 );
|
|
#endif /* USE_BSDPGRP */
|
|
RETURN;
|
|
#else
|
|
DIE(aTHX_ PL_no_func, "setpgrp");
|
|
#endif
|
|
}
|
|
|
|
#if defined(__GLIBC__) && ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3) || (__GLIBC__ > 2))
|
|
# define PRIORITY_WHICH_T(which) (__priority_which_t)which
|
|
#else
|
|
# define PRIORITY_WHICH_T(which) which
|
|
#endif
|
|
|
|
PP(pp_getpriority)
|
|
{
|
|
#ifdef HAS_GETPRIORITY
|
|
dSP; dTARGET;
|
|
const int who = POPi;
|
|
const int which = TOPi;
|
|
SETi( getpriority(PRIORITY_WHICH_T(which), who) );
|
|
RETURN;
|
|
#else
|
|
DIE(aTHX_ PL_no_func, "getpriority");
|
|
#endif
|
|
}
|
|
|
|
PP(pp_setpriority)
|
|
{
|
|
#ifdef HAS_SETPRIORITY
|
|
dSP; dTARGET;
|
|
const int niceval = POPi;
|
|
const int who = POPi;
|
|
const int which = TOPi;
|
|
TAINT_PROPER("setpriority");
|
|
SETi( setpriority(PRIORITY_WHICH_T(which), who, niceval) >= 0 );
|
|
RETURN;
|
|
#else
|
|
DIE(aTHX_ PL_no_func, "setpriority");
|
|
#endif
|
|
}
|
|
|
|
#undef PRIORITY_WHICH_T
|
|
|
|
/* Time calls. */
|
|
|
|
PP(pp_time)
|
|
{
|
|
dSP; dTARGET;
|
|
#ifdef BIG_TIME
|
|
XPUSHn( time(NULL) );
|
|
#else
|
|
XPUSHi( time(NULL) );
|
|
#endif
|
|
RETURN;
|
|
}
|
|
|
|
PP(pp_tms)
|
|
{
|
|
#ifdef HAS_TIMES
|
|
dSP;
|
|
struct tms timesbuf;
|
|
|
|
EXTEND(SP, 4);
|
|
(void)PerlProc_times(×buf);
|
|
|
|
mPUSHn(((NV)timesbuf.tms_utime)/(NV)PL_clocktick);
|
|
if (GIMME_V == G_ARRAY) {
|
|
mPUSHn(((NV)timesbuf.tms_stime)/(NV)PL_clocktick);
|
|
mPUSHn(((NV)timesbuf.tms_cutime)/(NV)PL_clocktick);
|
|
mPUSHn(((NV)timesbuf.tms_cstime)/(NV)PL_clocktick);
|
|
}
|
|
RETURN;
|
|
#elif defined(PERL_MICRO)
|
|
dSP;
|
|
mPUSHn(0.0);
|
|
EXTEND(SP, 4);
|
|
if (GIMME_V == G_ARRAY) {
|
|
mPUSHn(0.0);
|
|
mPUSHn(0.0);
|
|
mPUSHn(0.0);
|
|
}
|
|
RETURN;
|
|
#else
|
|
DIE(aTHX_ "times not implemented");
|
|
#endif /* HAS_TIMES */
|
|
}
|
|
|
|
/* The 32 bit int year limits the times we can represent to these
|
|
boundaries with a few days wiggle room to account for time zone
|
|
offsets
|
|
*/
|
|
/* Sat Jan 3 00:00:00 -2147481748 */
|
|
#define TIME_LOWER_BOUND -67768100567755200.0
|
|
/* Sun Dec 29 12:00:00 2147483647 */
|
|
#define TIME_UPPER_BOUND 67767976233316800.0
|
|
|
|
|
|
/* also used for: pp_localtime() */
|
|
|
|
PP(pp_gmtime)
|
|
{
|
|
dSP;
|
|
Time64_T when;
|
|
struct TM tmbuf;
|
|
struct TM *err;
|
|
const char *opname = PL_op->op_type == OP_LOCALTIME ? "localtime" : "gmtime";
|
|
static const char * const dayname[] =
|
|
{"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
|
|
static const char * const monname[] =
|
|
{"Jan", "Feb", "Mar", "Apr", "May", "Jun",
|
|
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
|
|
|
|
if (MAXARG < 1 || (!TOPs && ((void)POPs, 1))) {
|
|
time_t now;
|
|
(void)time(&now);
|
|
when = (Time64_T)now;
|
|
}
|
|
else {
|
|
NV input = Perl_floor(POPn);
|
|
const bool pl_isnan = Perl_isnan(input);
|
|
when = (Time64_T)input;
|
|
if (UNLIKELY(pl_isnan || when != input)) {
|
|
/* diag_listed_as: gmtime(%f) too large */
|
|
Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
|
|
"%s(%.0" NVff ") too large", opname, input);
|
|
if (pl_isnan) {
|
|
err = NULL;
|
|
goto failed;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( TIME_LOWER_BOUND > when ) {
|
|
/* diag_listed_as: gmtime(%f) too small */
|
|
Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
|
|
"%s(%.0" NVff ") too small", opname, when);
|
|
err = NULL;
|
|
}
|
|
else if( when > TIME_UPPER_BOUND ) {
|
|
/* diag_listed_as: gmtime(%f) too small */
|
|
Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
|
|
"%s(%.0" NVff ") too large", opname, when);
|
|
err = NULL;
|
|
}
|
|
else {
|
|
if (PL_op->op_type == OP_LOCALTIME)
|
|
err = Perl_localtime64_r(&when, &tmbuf);
|
|
else
|
|
err = Perl_gmtime64_r(&when, &tmbuf);
|
|
}
|
|
|
|
if (err == NULL) {
|
|
/* diag_listed_as: gmtime(%f) failed */
|
|
/* XXX %lld broken for quads */
|
|
failed:
|
|
Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
|
|
"%s(%.0" NVff ") failed", opname, when);
|
|
}
|
|
|
|
if (GIMME_V != G_ARRAY) { /* scalar context */
|
|
EXTEND(SP, 1);
|
|
if (err == NULL)
|
|
RETPUSHUNDEF;
|
|
else {
|
|
dTARGET;
|
|
PUSHs(TARG);
|
|
Perl_sv_setpvf_mg(aTHX_ TARG, "%s %s %2d %02d:%02d:%02d %" IVdf,
|
|
dayname[tmbuf.tm_wday],
|
|
monname[tmbuf.tm_mon],
|
|
tmbuf.tm_mday,
|
|
tmbuf.tm_hour,
|
|
tmbuf.tm_min,
|
|
tmbuf.tm_sec,
|
|
(IV)tmbuf.tm_year + 1900);
|
|
}
|
|
}
|
|
else { /* list context */
|
|
if ( err == NULL )
|
|
RETURN;
|
|
|
|
EXTEND(SP, 9);
|
|
EXTEND_MORTAL(9);
|
|
mPUSHi(tmbuf.tm_sec);
|
|
mPUSHi(tmbuf.tm_min);
|
|
mPUSHi(tmbuf.tm_hour);
|
|
mPUSHi(tmbuf.tm_mday);
|
|
mPUSHi(tmbuf.tm_mon);
|
|
mPUSHn(tmbuf.tm_year);
|
|
mPUSHi(tmbuf.tm_wday);
|
|
mPUSHi(tmbuf.tm_yday);
|
|
mPUSHi(tmbuf.tm_isdst);
|
|
}
|
|
RETURN;
|
|
}
|
|
|
|
PP(pp_alarm)
|
|
{
|
|
#ifdef HAS_ALARM
|
|
dSP; dTARGET;
|
|
/* alarm() takes an unsigned int number of seconds, and return the
|
|
* unsigned int number of seconds remaining in the previous alarm
|
|
* (alarms don't stack). Therefore negative return values are not
|
|
* possible. */
|
|
int anum = POPi;
|
|
if (anum < 0) {
|
|
/* Note that while the C library function alarm() as such has
|
|
* no errors defined (or in other words, properly behaving client
|
|
* code shouldn't expect any), alarm() being obsoleted by
|
|
* setitimer() and often being implemented in terms of
|
|
* setitimer(), can fail. */
|
|
/* diag_listed_as: %s() with negative argument */
|
|
Perl_ck_warner_d(aTHX_ packWARN(WARN_MISC),
|
|
"alarm() with negative argument");
|
|
SETERRNO(EINVAL, LIB_INVARG);
|
|
RETPUSHUNDEF;
|
|
}
|
|
else {
|
|
unsigned int retval = alarm(anum);
|
|
if ((int)retval < 0) /* Strictly speaking "cannot happen". */
|
|
RETPUSHUNDEF;
|
|
PUSHu(retval);
|
|
RETURN;
|
|
}
|
|
#else
|
|
DIE(aTHX_ PL_no_func, "alarm");
|
|
#endif
|
|
}
|
|
|
|
PP(pp_sleep)
|
|
{
|
|
dSP; dTARGET;
|
|
Time_t lasttime;
|
|
Time_t when;
|
|
|
|
(void)time(&lasttime);
|
|
if (MAXARG < 1 || (!TOPs && !POPs))
|
|
PerlProc_pause();
|
|
else {
|
|
const I32 duration = POPi;
|
|
if (duration < 0) {
|
|
/* diag_listed_as: %s() with negative argument */
|
|
Perl_ck_warner_d(aTHX_ packWARN(WARN_MISC),
|
|
"sleep() with negative argument");
|
|
SETERRNO(EINVAL, LIB_INVARG);
|
|
XPUSHs(&PL_sv_zero);
|
|
RETURN;
|
|
} else {
|
|
PerlProc_sleep((unsigned int)duration);
|
|
}
|
|
}
|
|
(void)time(&when);
|
|
XPUSHi(when - lasttime);
|
|
RETURN;
|
|
}
|
|
|
|
/* Shared memory. */
|
|
/* Merged with some message passing. */
|
|
|
|
/* also used for: pp_msgrcv() pp_msgsnd() pp_semop() pp_shmread() */
|
|
|
|
PP(pp_shmwrite)
|
|
{
|
|
#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
|
|
dSP; dMARK; dTARGET;
|
|
const int op_type = PL_op->op_type;
|
|
I32 value;
|
|
|
|
switch (op_type) {
|
|
case OP_MSGSND:
|
|
value = (I32)(do_msgsnd(MARK, SP) >= 0);
|
|
break;
|
|
case OP_MSGRCV:
|
|
value = (I32)(do_msgrcv(MARK, SP) >= 0);
|
|
break;
|
|
case OP_SEMOP:
|
|
value = (I32)(do_semop(MARK, SP) >= 0);
|
|
break;
|
|
default:
|
|
value = (I32)(do_shmio(op_type, MARK, SP) >= 0);
|
|
break;
|
|
}
|
|
|
|
SP = MARK;
|
|
PUSHi(value);
|
|
RETURN;
|
|
#else
|
|
return Perl_pp_semget(aTHX);
|
|
#endif
|
|
}
|
|
|
|
/* Semaphores. */
|
|
|
|
/* also used for: pp_msgget() pp_shmget() */
|
|
|
|
PP(pp_semget)
|
|
{
|
|
#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
|
|
dSP; dMARK; dTARGET;
|
|
const int anum = do_ipcget(PL_op->op_type, MARK, SP);
|
|
SP = MARK;
|
|
if (anum == -1)
|
|
RETPUSHUNDEF;
|
|
PUSHi(anum);
|
|
RETURN;
|
|
#else
|
|
DIE(aTHX_ "System V IPC is not implemented on this machine");
|
|
#endif
|
|
}
|
|
|
|
/* also used for: pp_msgctl() pp_shmctl() */
|
|
|
|
PP(pp_semctl)
|
|
{
|
|
#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
|
|
dSP; dMARK; dTARGET;
|
|
const int anum = do_ipcctl(PL_op->op_type, MARK, SP);
|
|
SP = MARK;
|
|
if (anum == -1)
|
|
RETPUSHUNDEF;
|
|
if (anum != 0) {
|
|
PUSHi(anum);
|
|
}
|
|
else {
|
|
PUSHp(zero_but_true, ZBTLEN);
|
|
}
|
|
RETURN;
|
|
#else
|
|
return Perl_pp_semget(aTHX);
|
|
#endif
|
|
}
|
|
|
|
/* I can't const this further without getting warnings about the types of
|
|
various arrays passed in from structures. */
|
|
static SV *
|
|
S_space_join_names_mortal(pTHX_ char *const *array)
|
|
{
|
|
SV *target;
|
|
|
|
if (array && *array) {
|
|
target = newSVpvs_flags("", SVs_TEMP);
|
|
while (1) {
|
|
sv_catpv(target, *array);
|
|
if (!*++array)
|
|
break;
|
|
sv_catpvs(target, " ");
|
|
}
|
|
} else {
|
|
target = sv_mortalcopy(&PL_sv_no);
|
|
}
|
|
return target;
|
|
}
|
|
|
|
/* Get system info. */
|
|
|
|
/* also used for: pp_ghbyaddr() pp_ghbyname() */
|
|
|
|
PP(pp_ghostent)
|
|
{
|
|
#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
|
|
dSP;
|
|
I32 which = PL_op->op_type;
|
|
char **elem;
|
|
SV *sv;
|
|
#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
|
|
struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
|
|
struct hostent *gethostbyname(Netdb_name_t);
|
|
struct hostent *gethostent(void);
|
|
#endif
|
|
struct hostent *hent = NULL;
|
|
unsigned long len;
|
|
|
|
EXTEND(SP, 10);
|
|
if (which == OP_GHBYNAME) {
|
|
#ifdef HAS_GETHOSTBYNAME
|
|
const char* const name = POPpbytex;
|
|
hent = PerlSock_gethostbyname(name);
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, "gethostbyname");
|
|
#endif
|
|
}
|
|
else if (which == OP_GHBYADDR) {
|
|
#ifdef HAS_GETHOSTBYADDR
|
|
const int addrtype = POPi;
|
|
SV * const addrsv = POPs;
|
|
STRLEN addrlen;
|
|
const char *addr = (char *)SvPVbyte(addrsv, addrlen);
|
|
|
|
hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
|
|
#endif
|
|
}
|
|
else
|
|
#ifdef HAS_GETHOSTENT
|
|
hent = PerlSock_gethostent();
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, "gethostent");
|
|
#endif
|
|
|
|
#ifdef HOST_NOT_FOUND
|
|
if (!hent) {
|
|
#ifdef USE_REENTRANT_API
|
|
# ifdef USE_GETHOSTENT_ERRNO
|
|
h_errno = PL_reentrant_buffer->_gethostent_errno;
|
|
# endif
|
|
#endif
|
|
STATUS_UNIX_SET(h_errno);
|
|
}
|
|
#endif
|
|
|
|
if (GIMME_V != G_ARRAY) {
|
|
PUSHs(sv = sv_newmortal());
|
|
if (hent) {
|
|
if (which == OP_GHBYNAME) {
|
|
if (hent->h_addr)
|
|
sv_setpvn(sv, hent->h_addr, hent->h_length);
|
|
}
|
|
else
|
|
sv_setpv(sv, (char*)hent->h_name);
|
|
}
|
|
RETURN;
|
|
}
|
|
|
|
if (hent) {
|
|
mPUSHs(newSVpv((char*)hent->h_name, 0));
|
|
PUSHs(space_join_names_mortal(hent->h_aliases));
|
|
mPUSHi(hent->h_addrtype);
|
|
len = hent->h_length;
|
|
mPUSHi(len);
|
|
#ifdef h_addr
|
|
for (elem = hent->h_addr_list; elem && *elem; elem++) {
|
|
mXPUSHp(*elem, len);
|
|
}
|
|
#else
|
|
if (hent->h_addr)
|
|
mPUSHp(hent->h_addr, len);
|
|
else
|
|
PUSHs(sv_mortalcopy(&PL_sv_no));
|
|
#endif /* h_addr */
|
|
}
|
|
RETURN;
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
|
|
#endif
|
|
}
|
|
|
|
/* also used for: pp_gnbyaddr() pp_gnbyname() */
|
|
|
|
PP(pp_gnetent)
|
|
{
|
|
#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
|
|
dSP;
|
|
I32 which = PL_op->op_type;
|
|
SV *sv;
|
|
#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
|
|
struct netent *getnetbyaddr(Netdb_net_t, int);
|
|
struct netent *getnetbyname(Netdb_name_t);
|
|
struct netent *getnetent(void);
|
|
#endif
|
|
struct netent *nent;
|
|
|
|
if (which == OP_GNBYNAME){
|
|
#ifdef HAS_GETNETBYNAME
|
|
const char * const name = POPpbytex;
|
|
nent = PerlSock_getnetbyname(name);
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, "getnetbyname");
|
|
#endif
|
|
}
|
|
else if (which == OP_GNBYADDR) {
|
|
#ifdef HAS_GETNETBYADDR
|
|
const int addrtype = POPi;
|
|
const Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
|
|
nent = PerlSock_getnetbyaddr(addr, addrtype);
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
|
|
#endif
|
|
}
|
|
else
|
|
#ifdef HAS_GETNETENT
|
|
nent = PerlSock_getnetent();
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, "getnetent");
|
|
#endif
|
|
|
|
#ifdef HOST_NOT_FOUND
|
|
if (!nent) {
|
|
#ifdef USE_REENTRANT_API
|
|
# ifdef USE_GETNETENT_ERRNO
|
|
h_errno = PL_reentrant_buffer->_getnetent_errno;
|
|
# endif
|
|
#endif
|
|
STATUS_UNIX_SET(h_errno);
|
|
}
|
|
#endif
|
|
|
|
EXTEND(SP, 4);
|
|
if (GIMME_V != G_ARRAY) {
|
|
PUSHs(sv = sv_newmortal());
|
|
if (nent) {
|
|
if (which == OP_GNBYNAME)
|
|
sv_setiv(sv, (IV)nent->n_net);
|
|
else
|
|
sv_setpv(sv, nent->n_name);
|
|
}
|
|
RETURN;
|
|
}
|
|
|
|
if (nent) {
|
|
mPUSHs(newSVpv(nent->n_name, 0));
|
|
PUSHs(space_join_names_mortal(nent->n_aliases));
|
|
mPUSHi(nent->n_addrtype);
|
|
mPUSHi(nent->n_net);
|
|
}
|
|
|
|
RETURN;
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
|
|
#endif
|
|
}
|
|
|
|
|
|
/* also used for: pp_gpbyname() pp_gpbynumber() */
|
|
|
|
PP(pp_gprotoent)
|
|
{
|
|
#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
|
|
dSP;
|
|
I32 which = PL_op->op_type;
|
|
SV *sv;
|
|
#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
|
|
struct protoent *getprotobyname(Netdb_name_t);
|
|
struct protoent *getprotobynumber(int);
|
|
struct protoent *getprotoent(void);
|
|
#endif
|
|
struct protoent *pent;
|
|
|
|
if (which == OP_GPBYNAME) {
|
|
#ifdef HAS_GETPROTOBYNAME
|
|
const char* const name = POPpbytex;
|
|
pent = PerlSock_getprotobyname(name);
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, "getprotobyname");
|
|
#endif
|
|
}
|
|
else if (which == OP_GPBYNUMBER) {
|
|
#ifdef HAS_GETPROTOBYNUMBER
|
|
const int number = POPi;
|
|
pent = PerlSock_getprotobynumber(number);
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
|
|
#endif
|
|
}
|
|
else
|
|
#ifdef HAS_GETPROTOENT
|
|
pent = PerlSock_getprotoent();
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, "getprotoent");
|
|
#endif
|
|
|
|
EXTEND(SP, 3);
|
|
if (GIMME_V != G_ARRAY) {
|
|
PUSHs(sv = sv_newmortal());
|
|
if (pent) {
|
|
if (which == OP_GPBYNAME)
|
|
sv_setiv(sv, (IV)pent->p_proto);
|
|
else
|
|
sv_setpv(sv, pent->p_name);
|
|
}
|
|
RETURN;
|
|
}
|
|
|
|
if (pent) {
|
|
mPUSHs(newSVpv(pent->p_name, 0));
|
|
PUSHs(space_join_names_mortal(pent->p_aliases));
|
|
mPUSHi(pent->p_proto);
|
|
}
|
|
|
|
RETURN;
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
|
|
#endif
|
|
}
|
|
|
|
|
|
/* also used for: pp_gsbyname() pp_gsbyport() */
|
|
|
|
PP(pp_gservent)
|
|
{
|
|
#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
|
|
dSP;
|
|
I32 which = PL_op->op_type;
|
|
SV *sv;
|
|
#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
|
|
struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
|
|
struct servent *getservbyport(int, Netdb_name_t);
|
|
struct servent *getservent(void);
|
|
#endif
|
|
struct servent *sent;
|
|
|
|
if (which == OP_GSBYNAME) {
|
|
#ifdef HAS_GETSERVBYNAME
|
|
const char * const proto = POPpbytex;
|
|
const char * const name = POPpbytex;
|
|
sent = PerlSock_getservbyname(name, (proto && !*proto) ? NULL : proto);
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, "getservbyname");
|
|
#endif
|
|
}
|
|
else if (which == OP_GSBYPORT) {
|
|
#ifdef HAS_GETSERVBYPORT
|
|
const char * const proto = POPpbytex;
|
|
unsigned short port = (unsigned short)POPu;
|
|
port = PerlSock_htons(port);
|
|
sent = PerlSock_getservbyport(port, (proto && !*proto) ? NULL : proto);
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, "getservbyport");
|
|
#endif
|
|
}
|
|
else
|
|
#ifdef HAS_GETSERVENT
|
|
sent = PerlSock_getservent();
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, "getservent");
|
|
#endif
|
|
|
|
EXTEND(SP, 4);
|
|
if (GIMME_V != G_ARRAY) {
|
|
PUSHs(sv = sv_newmortal());
|
|
if (sent) {
|
|
if (which == OP_GSBYNAME) {
|
|
sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
|
|
}
|
|
else
|
|
sv_setpv(sv, sent->s_name);
|
|
}
|
|
RETURN;
|
|
}
|
|
|
|
if (sent) {
|
|
mPUSHs(newSVpv(sent->s_name, 0));
|
|
PUSHs(space_join_names_mortal(sent->s_aliases));
|
|
mPUSHi(PerlSock_ntohs(sent->s_port));
|
|
mPUSHs(newSVpv(sent->s_proto, 0));
|
|
}
|
|
|
|
RETURN;
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
|
|
#endif
|
|
}
|
|
|
|
|
|
/* also used for: pp_snetent() pp_sprotoent() pp_sservent() */
|
|
|
|
PP(pp_shostent)
|
|
{
|
|
dSP;
|
|
const int stayopen = TOPi;
|
|
switch(PL_op->op_type) {
|
|
case OP_SHOSTENT:
|
|
#ifdef HAS_SETHOSTENT
|
|
PerlSock_sethostent(stayopen);
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
|
|
#endif
|
|
break;
|
|
#ifdef HAS_SETNETENT
|
|
case OP_SNETENT:
|
|
PerlSock_setnetent(stayopen);
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
|
|
#endif
|
|
break;
|
|
case OP_SPROTOENT:
|
|
#ifdef HAS_SETPROTOENT
|
|
PerlSock_setprotoent(stayopen);
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
|
|
#endif
|
|
break;
|
|
case OP_SSERVENT:
|
|
#ifdef HAS_SETSERVENT
|
|
PerlSock_setservent(stayopen);
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
|
|
#endif
|
|
break;
|
|
}
|
|
RETSETYES;
|
|
}
|
|
|
|
|
|
/* also used for: pp_egrent() pp_enetent() pp_eprotoent() pp_epwent()
|
|
* pp_eservent() pp_sgrent() pp_spwent() */
|
|
|
|
PP(pp_ehostent)
|
|
{
|
|
dSP;
|
|
switch(PL_op->op_type) {
|
|
case OP_EHOSTENT:
|
|
#ifdef HAS_ENDHOSTENT
|
|
PerlSock_endhostent();
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
|
|
#endif
|
|
break;
|
|
case OP_ENETENT:
|
|
#ifdef HAS_ENDNETENT
|
|
PerlSock_endnetent();
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
|
|
#endif
|
|
break;
|
|
case OP_EPROTOENT:
|
|
#ifdef HAS_ENDPROTOENT
|
|
PerlSock_endprotoent();
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
|
|
#endif
|
|
break;
|
|
case OP_ESERVENT:
|
|
#ifdef HAS_ENDSERVENT
|
|
PerlSock_endservent();
|
|
#else
|
|
DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
|
|
#endif
|
|
break;
|
|
case OP_SGRENT:
|
|
#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
|
|
setgrent();
|
|
#else
|
|
DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
|
|
#endif
|
|
break;
|
|
case OP_EGRENT:
|
|
#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
|
|
endgrent();
|
|
#else
|
|
DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
|
|
#endif
|
|
break;
|
|
case OP_SPWENT:
|
|
#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
|
|
setpwent();
|
|
#else
|
|
DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
|
|
#endif
|
|
break;
|
|
case OP_EPWENT:
|
|
#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
|
|
endpwent();
|
|
#else
|
|
DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
|
|
#endif
|
|
break;
|
|
}
|
|
EXTEND(SP,1);
|
|
RETPUSHYES;
|
|
}
|
|
|
|
|
|
/* also used for: pp_gpwnam() pp_gpwuid() */
|
|
|
|
PP(pp_gpwent)
|
|
{
|
|
#ifdef HAS_PASSWD
|
|
dSP;
|
|
I32 which = PL_op->op_type;
|
|
SV *sv;
|
|
struct passwd *pwent = NULL;
|
|
/*
|
|
* We currently support only the SysV getsp* shadow password interface.
|
|
* The interface is declared in <shadow.h> and often one needs to link
|
|
* with -lsecurity or some such.
|
|
* This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
|
|
* (and SCO?)
|
|
*
|
|
* AIX getpwnam() is clever enough to return the encrypted password
|
|
* only if the caller (euid?) is root.
|
|
*
|
|
* There are at least three other shadow password APIs. Many platforms
|
|
* seem to contain more than one interface for accessing the shadow
|
|
* password databases, possibly for compatibility reasons.
|
|
* The getsp*() is by far he simplest one, the other two interfaces
|
|
* are much more complicated, but also very similar to each other.
|
|
*
|
|
* <sys/types.h>
|
|
* <sys/security.h>
|
|
* <prot.h>
|
|
* struct pr_passwd *getprpw*();
|
|
* The password is in
|
|
* char getprpw*(...).ufld.fd_encrypt[]
|
|
* Mention HAS_GETPRPWNAM here so that Configure probes for it.
|
|
*
|
|
* <sys/types.h>
|
|
* <sys/security.h>
|
|
* <prot.h>
|
|
* struct es_passwd *getespw*();
|
|
* The password is in
|
|
* char *(getespw*(...).ufld.fd_encrypt)
|
|
* Mention HAS_GETESPWNAM here so that Configure probes for it.
|
|
*
|
|
* <userpw.h> (AIX)
|
|
* struct userpw *getuserpw();
|
|
* The password is in
|
|
* char *(getuserpw(...)).spw_upw_passwd
|
|
* (but the de facto standard getpwnam() should work okay)
|
|
*
|
|
* Mention I_PROT here so that Configure probes for it.
|
|
*
|
|
* In HP-UX for getprpw*() the manual page claims that one should include
|
|
* <hpsecurity.h> instead of <sys/security.h>, but that is not needed
|
|
* if one includes <shadow.h> as that includes <hpsecurity.h>,
|
|
* and pp_sys.c already includes <shadow.h> if there is such.
|
|
*
|
|
* Note that <sys/security.h> is already probed for, but currently
|
|
* it is only included in special cases.
|
|
*
|
|
* In Digital UNIX/Tru64 if using the getespw*() (which seems to be
|
|
* be preferred interface, even though also the getprpw*() interface
|
|
* is available) one needs to link with -lsecurity -ldb -laud -lm.
|
|
* One also needs to call set_auth_parameters() in main() before
|
|
* doing anything else, whether one is using getespw*() or getprpw*().
|
|
*
|
|
* Note that accessing the shadow databases can be magnitudes
|
|
* slower than accessing the standard databases.
|
|
*
|
|
* --jhi
|
|
*/
|
|
|
|
# if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
|
|
/* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
|
|
* the pw_comment is left uninitialized. */
|
|
PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
|
|
# endif
|
|
|
|
switch (which) {
|
|
case OP_GPWNAM:
|
|
{
|
|
const char* const name = POPpbytex;
|
|
pwent = getpwnam(name);
|
|
}
|
|
break;
|
|
case OP_GPWUID:
|
|
{
|
|
Uid_t uid = POPi;
|
|
pwent = getpwuid(uid);
|
|
}
|
|
break;
|
|
case OP_GPWENT:
|
|
# ifdef HAS_GETPWENT
|
|
pwent = getpwent();
|
|
#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
|
|
if (pwent) pwent = getpwnam(pwent->pw_name);
|
|
#endif
|
|
# else
|
|
DIE(aTHX_ PL_no_func, "getpwent");
|
|
# endif
|
|
break;
|
|
}
|
|
|
|
EXTEND(SP, 10);
|
|
if (GIMME_V != G_ARRAY) {
|
|
PUSHs(sv = sv_newmortal());
|
|
if (pwent) {
|
|
if (which == OP_GPWNAM)
|
|
sv_setuid(sv, pwent->pw_uid);
|
|
else
|
|
sv_setpv(sv, pwent->pw_name);
|
|
}
|
|
RETURN;
|
|
}
|
|
|
|
if (pwent) {
|
|
mPUSHs(newSVpv(pwent->pw_name, 0));
|
|
|
|
sv = newSViv(0);
|
|
mPUSHs(sv);
|
|
/* If we have getspnam(), we try to dig up the shadow
|
|
* password. If we are underprivileged, the shadow
|
|
* interface will set the errno to EACCES or similar,
|
|
* and return a null pointer. If this happens, we will
|
|
* use the dummy password (usually "*" or "x") from the
|
|
* standard password database.
|
|
*
|
|
* In theory we could skip the shadow call completely
|
|
* if euid != 0 but in practice we cannot know which
|
|
* security measures are guarding the shadow databases
|
|
* on a random platform.
|
|
*
|
|
* Resist the urge to use additional shadow interfaces.
|
|
* Divert the urge to writing an extension instead.
|
|
*
|
|
* --jhi */
|
|
/* Some AIX setups falsely(?) detect some getspnam(), which
|
|
* has a different API than the Solaris/IRIX one. */
|
|
# if defined(HAS_GETSPNAM) && !defined(_AIX)
|
|
{
|
|
dSAVE_ERRNO;
|
|
const struct spwd * const spwent = getspnam(pwent->pw_name);
|
|
/* Save and restore errno so that
|
|
* underprivileged attempts seem
|
|
* to have never made the unsuccessful
|
|
* attempt to retrieve the shadow password. */
|
|
RESTORE_ERRNO;
|
|
if (spwent && spwent->sp_pwdp)
|
|
sv_setpv(sv, spwent->sp_pwdp);
|
|
}
|
|
# endif
|
|
# ifdef PWPASSWD
|
|
if (!SvPOK(sv)) /* Use the standard password, then. */
|
|
sv_setpv(sv, pwent->pw_passwd);
|
|
# endif
|
|
|
|
/* passwd is tainted because user himself can diddle with it.
|
|
* admittedly not much and in a very limited way, but nevertheless. */
|
|
SvTAINTED_on(sv);
|
|
|
|
sv_setuid(PUSHmortal, pwent->pw_uid);
|
|
sv_setgid(PUSHmortal, pwent->pw_gid);
|
|
|
|
/* pw_change, pw_quota, and pw_age are mutually exclusive--
|
|
* because of the poor interface of the Perl getpw*(),
|
|
* not because there's some standard/convention saying so.
|
|
* A better interface would have been to return a hash,
|
|
* but we are accursed by our history, alas. --jhi. */
|
|
# ifdef PWCHANGE
|
|
mPUSHi(pwent->pw_change);
|
|
# elif defined(PWQUOTA)
|
|
mPUSHi(pwent->pw_quota);
|
|
# elif defined(PWAGE)
|
|
mPUSHs(newSVpv(pwent->pw_age, 0));
|
|
# else
|
|
/* I think that you can never get this compiled, but just in case. */
|
|
PUSHs(sv_mortalcopy(&PL_sv_no));
|
|
# endif
|
|
|
|
/* pw_class and pw_comment are mutually exclusive--.
|
|
* see the above note for pw_change, pw_quota, and pw_age. */
|
|
# ifdef PWCLASS
|
|
mPUSHs(newSVpv(pwent->pw_class, 0));
|
|
# elif defined(PWCOMMENT)
|
|
mPUSHs(newSVpv(pwent->pw_comment, 0));
|
|
# else
|
|
/* I think that you can never get this compiled, but just in case. */
|
|
PUSHs(sv_mortalcopy(&PL_sv_no));
|
|
# endif
|
|
|
|
# ifdef PWGECOS
|
|
PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_gecos, 0)));
|
|
# else
|
|
PUSHs(sv = sv_mortalcopy(&PL_sv_no));
|
|
# endif
|
|
/* pw_gecos is tainted because user himself can diddle with it. */
|
|
SvTAINTED_on(sv);
|
|
|
|
mPUSHs(newSVpv(pwent->pw_dir, 0));
|
|
|
|
PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_shell, 0)));
|
|
/* pw_shell is tainted because user himself can diddle with it. */
|
|
SvTAINTED_on(sv);
|
|
|
|
# ifdef PWEXPIRE
|
|
mPUSHi(pwent->pw_expire);
|
|
# endif
|
|
}
|
|
RETURN;
|
|
#else
|
|
DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
|
|
#endif
|
|
}
|
|
|
|
|
|
/* also used for: pp_ggrgid() pp_ggrnam() */
|
|
|
|
PP(pp_ggrent)
|
|
{
|
|
#ifdef HAS_GROUP
|
|
dSP;
|
|
const I32 which = PL_op->op_type;
|
|
const struct group *grent;
|
|
|
|
if (which == OP_GGRNAM) {
|
|
const char* const name = POPpbytex;
|
|
grent = (const struct group *)getgrnam(name);
|
|
}
|
|
else if (which == OP_GGRGID) {
|
|
#if Gid_t_sign == 1
|
|
const Gid_t gid = POPu;
|
|
#elif Gid_t_sign == -1
|
|
const Gid_t gid = POPi;
|
|
#else
|
|
# error "Unexpected Gid_t_sign"
|
|
#endif
|
|
grent = (const struct group *)getgrgid(gid);
|
|
}
|
|
else
|
|
#ifdef HAS_GETGRENT
|
|
grent = (struct group *)getgrent();
|
|
#else
|
|
DIE(aTHX_ PL_no_func, "getgrent");
|
|
#endif
|
|
|
|
EXTEND(SP, 4);
|
|
if (GIMME_V != G_ARRAY) {
|
|
SV * const sv = sv_newmortal();
|
|
|
|
PUSHs(sv);
|
|
if (grent) {
|
|
if (which == OP_GGRNAM)
|
|
sv_setgid(sv, grent->gr_gid);
|
|
else
|
|
sv_setpv(sv, grent->gr_name);
|
|
}
|
|
RETURN;
|
|
}
|
|
|
|
if (grent) {
|
|
mPUSHs(newSVpv(grent->gr_name, 0));
|
|
|
|
#ifdef GRPASSWD
|
|
mPUSHs(newSVpv(grent->gr_passwd, 0));
|
|
#else
|
|
PUSHs(sv_mortalcopy(&PL_sv_no));
|
|
#endif
|
|
|
|
sv_setgid(PUSHmortal, grent->gr_gid);
|
|
|
|
#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
|
|
/* In UNICOS/mk (_CRAYMPP) the multithreading
|
|
* versions (getgrnam_r, getgrgid_r)
|
|
* seem to return an illegal pointer
|
|
* as the group members list, gr_mem.
|
|
* getgrent() doesn't even have a _r version
|
|
* but the gr_mem is poisonous anyway.
|
|
* So yes, you cannot get the list of group
|
|
* members if building multithreaded in UNICOS/mk. */
|
|
PUSHs(space_join_names_mortal(grent->gr_mem));
|
|
#endif
|
|
}
|
|
|
|
RETURN;
|
|
#else
|
|
DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
|
|
#endif
|
|
}
|
|
|
|
PP(pp_getlogin)
|
|
{
|
|
#ifdef HAS_GETLOGIN
|
|
dSP; dTARGET;
|
|
char *tmps;
|
|
EXTEND(SP, 1);
|
|
if (!(tmps = PerlProc_getlogin()))
|
|
RETPUSHUNDEF;
|
|
sv_setpv_mg(TARG, tmps);
|
|
PUSHs(TARG);
|
|
RETURN;
|
|
#else
|
|
DIE(aTHX_ PL_no_func, "getlogin");
|
|
#endif
|
|
}
|
|
|
|
/* Miscellaneous. */
|
|
|
|
PP(pp_syscall)
|
|
{
|
|
#ifdef HAS_SYSCALL
|
|
dSP; dMARK; dORIGMARK; dTARGET;
|
|
I32 items = SP - MARK;
|
|
unsigned long a[20];
|
|
I32 i = 0;
|
|
IV retval = -1;
|
|
|
|
if (TAINTING_get) {
|
|
while (++MARK <= SP) {
|
|
if (SvTAINTED(*MARK)) {
|
|
TAINT;
|
|
break;
|
|
}
|
|
}
|
|
MARK = ORIGMARK;
|
|
TAINT_PROPER("syscall");
|
|
}
|
|
|
|
/* This probably won't work on machines where sizeof(long) != sizeof(int)
|
|
* or where sizeof(long) != sizeof(char*). But such machines will
|
|
* not likely have syscall implemented either, so who cares?
|
|
*/
|
|
while (++MARK <= SP) {
|
|
if (SvNIOK(*MARK) || !i)
|
|
a[i++] = SvIV(*MARK);
|
|
else if (*MARK == &PL_sv_undef)
|
|
a[i++] = 0;
|
|
else
|
|
a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
|
|
if (i > 15)
|
|
break;
|
|
}
|
|
switch (items) {
|
|
default:
|
|
DIE(aTHX_ "Too many args to syscall");
|
|
case 0:
|
|
DIE(aTHX_ "Too few args to syscall");
|
|
case 1:
|
|
retval = syscall(a[0]);
|
|
break;
|
|
case 2:
|
|
retval = syscall(a[0],a[1]);
|
|
break;
|
|
case 3:
|
|
retval = syscall(a[0],a[1],a[2]);
|
|
break;
|
|
case 4:
|
|
retval = syscall(a[0],a[1],a[2],a[3]);
|
|
break;
|
|
case 5:
|
|
retval = syscall(a[0],a[1],a[2],a[3],a[4]);
|
|
break;
|
|
case 6:
|
|
retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
|
|
break;
|
|
case 7:
|
|
retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
|
|
break;
|
|
case 8:
|
|
retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
|
|
break;
|
|
}
|
|
SP = ORIGMARK;
|
|
PUSHi(retval);
|
|
RETURN;
|
|
#else
|
|
DIE(aTHX_ PL_no_func, "syscall");
|
|
#endif
|
|
}
|
|
|
|
#ifdef FCNTL_EMULATE_FLOCK
|
|
|
|
/* XXX Emulate flock() with fcntl().
|
|
What's really needed is a good file locking module.
|
|
*/
|
|
|
|
static int
|
|
fcntl_emulate_flock(int fd, int operation)
|
|
{
|
|
int res;
|
|
struct flock flock;
|
|
|
|
switch (operation & ~LOCK_NB) {
|
|
case LOCK_SH:
|
|
flock.l_type = F_RDLCK;
|
|
break;
|
|
case LOCK_EX:
|
|
flock.l_type = F_WRLCK;
|
|
break;
|
|
case LOCK_UN:
|
|
flock.l_type = F_UNLCK;
|
|
break;
|
|
default:
|
|
errno = EINVAL;
|
|
return -1;
|
|
}
|
|
flock.l_whence = SEEK_SET;
|
|
flock.l_start = flock.l_len = (Off_t)0;
|
|
|
|
res = fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
|
|
if (res == -1 && ((errno == EAGAIN) || (errno == EACCES)))
|
|
errno = EWOULDBLOCK;
|
|
return res;
|
|
}
|
|
|
|
#endif /* FCNTL_EMULATE_FLOCK */
|
|
|
|
#ifdef LOCKF_EMULATE_FLOCK
|
|
|
|
/* XXX Emulate flock() with lockf(). This is just to increase
|
|
portability of scripts. The calls are not completely
|
|
interchangeable. What's really needed is a good file
|
|
locking module.
|
|
*/
|
|
|
|
/* The lockf() constants might have been defined in <unistd.h>.
|
|
Unfortunately, <unistd.h> causes troubles on some mixed
|
|
(BSD/POSIX) systems, such as SunOS 4.1.3.
|
|
|
|
Further, the lockf() constants aren't POSIX, so they might not be
|
|
visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
|
|
just stick in the SVID values and be done with it. Sigh.
|
|
*/
|
|
|
|
# ifndef F_ULOCK
|
|
# define F_ULOCK 0 /* Unlock a previously locked region */
|
|
# endif
|
|
# ifndef F_LOCK
|
|
# define F_LOCK 1 /* Lock a region for exclusive use */
|
|
# endif
|
|
# ifndef F_TLOCK
|
|
# define F_TLOCK 2 /* Test and lock a region for exclusive use */
|
|
# endif
|
|
# ifndef F_TEST
|
|
# define F_TEST 3 /* Test a region for other processes locks */
|
|
# endif
|
|
|
|
static int
|
|
lockf_emulate_flock(int fd, int operation)
|
|
{
|
|
int i;
|
|
Off_t pos;
|
|
dSAVE_ERRNO;
|
|
|
|
/* flock locks entire file so for lockf we need to do the same */
|
|
pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
|
|
if (pos > 0) /* is seekable and needs to be repositioned */
|
|
if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
|
|
pos = -1; /* seek failed, so don't seek back afterwards */
|
|
RESTORE_ERRNO;
|
|
|
|
switch (operation) {
|
|
|
|
/* LOCK_SH - get a shared lock */
|
|
case LOCK_SH:
|
|
/* LOCK_EX - get an exclusive lock */
|
|
case LOCK_EX:
|
|
i = lockf (fd, F_LOCK, 0);
|
|
break;
|
|
|
|
/* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
|
|
case LOCK_SH|LOCK_NB:
|
|
/* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
|
|
case LOCK_EX|LOCK_NB:
|
|
i = lockf (fd, F_TLOCK, 0);
|
|
if (i == -1)
|
|
if ((errno == EAGAIN) || (errno == EACCES))
|
|
errno = EWOULDBLOCK;
|
|
break;
|
|
|
|
/* LOCK_UN - unlock (non-blocking is a no-op) */
|
|
case LOCK_UN:
|
|
case LOCK_UN|LOCK_NB:
|
|
i = lockf (fd, F_ULOCK, 0);
|
|
break;
|
|
|
|
/* Default - can't decipher operation */
|
|
default:
|
|
i = -1;
|
|
errno = EINVAL;
|
|
break;
|
|
}
|
|
|
|
if (pos > 0) /* need to restore position of the handle */
|
|
PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
|
|
|
|
return (i);
|
|
}
|
|
|
|
#endif /* LOCKF_EMULATE_FLOCK */
|
|
|
|
/*
|
|
* ex: set ts=8 sts=4 sw=4 et:
|
|
*/
|