104 lines
3.2 KiB
C
104 lines
3.2 KiB
C
/*
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* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "proc_fs.h"
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#include <stdio.h>
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#include <sys/mount.h>
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#include <sys/statfs.h>
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#include "fs/file.h"
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#include "internal.h"
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static int ShowType(const char *mountPoint, struct statfs *statBuf, void *arg)
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{
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struct SeqBuf *seqBuf = (struct SeqBuf *)arg;
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char *type = NULL;
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char *name = NULL;
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switch (statBuf->f_type) {
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case PROCFS_MAGIC:
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type = "proc";
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name = "proc";
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break;
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case JFFS2_SUPER_MAGIC:
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type = "jffs2";
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name = "jffs2";
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break;
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case NFS_SUPER_MAGIC:
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type = "nfs";
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name = "nfs";
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break;
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case TMPFS_MAGIC:
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type = "tmpfs";
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name = "tmpfs";
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break;
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case MSDOS_SUPER_MAGIC:
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type = "vfat";
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name = "fat";
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break;
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case ZPFS_MAGIC:
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type = "zpfs";
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name = "zpfs";
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break;
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default:
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return 0;
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}
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(void)LosBufPrintf(seqBuf, "%s %s %s\n", name, mountPoint, type);
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return 0;
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}
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static int MountsProcFill(struct SeqBuf *m, void *v)
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{
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foreach_mountpoint_t handler = ShowType;
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(void)foreach_mountpoint(handler, (void *)m);
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return 0;
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}
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static const struct ProcFileOperations MOUNTS_PROC_FOPS = {
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.read = MountsProcFill,
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};
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void ProcMountsInit(void)
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{
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struct ProcDirEntry *pde = CreateProcEntry("mounts", 0, NULL);
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if (pde == NULL) {
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PRINT_ERR("creat mounts error!\n");
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return;
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}
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pde->procFileOps = &MOUNTS_PROC_FOPS;
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}
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