mirror of
https://github.com/sheumann/hush.git
synced 2024-12-21 23:29:34 +00:00
56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Utility routines.
|
|
*
|
|
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
|
|
*
|
|
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
|
|
*/
|
|
|
|
#include <mntent.h>
|
|
#include "libbb.h"
|
|
|
|
#if ENABLE_FEATURE_MTAB_SUPPORT
|
|
void FAST_FUNC erase_mtab(const char *name)
|
|
{
|
|
struct mntent *entries;
|
|
int i, count;
|
|
FILE *mountTable;
|
|
struct mntent *m;
|
|
|
|
mountTable = setmntent(bb_path_mtab_file, "r");
|
|
/* Bummer. Fall back on trying the /proc filesystem */
|
|
if (!mountTable) mountTable = setmntent("/proc/mounts", "r");
|
|
if (!mountTable) {
|
|
bb_perror_msg(bb_path_mtab_file);
|
|
return;
|
|
}
|
|
|
|
entries = NULL;
|
|
count = 0;
|
|
while ((m = getmntent(mountTable)) != 0) {
|
|
entries = xrealloc_vector(entries, 3, count);
|
|
entries[count].mnt_fsname = xstrdup(m->mnt_fsname);
|
|
entries[count].mnt_dir = xstrdup(m->mnt_dir);
|
|
entries[count].mnt_type = xstrdup(m->mnt_type);
|
|
entries[count].mnt_opts = xstrdup(m->mnt_opts);
|
|
entries[count].mnt_freq = m->mnt_freq;
|
|
entries[count].mnt_passno = m->mnt_passno;
|
|
count++;
|
|
}
|
|
endmntent(mountTable);
|
|
|
|
//TODO: make update atomic
|
|
mountTable = setmntent(bb_path_mtab_file, "w");
|
|
if (mountTable) {
|
|
for (i = 0; i < count; i++) {
|
|
if (strcmp(entries[i].mnt_fsname, name) != 0
|
|
&& strcmp(entries[i].mnt_dir, name) != 0)
|
|
addmntent(mountTable, &entries[i]);
|
|
}
|
|
endmntent(mountTable);
|
|
} else if (errno != EROFS)
|
|
bb_perror_msg(bb_path_mtab_file);
|
|
}
|
|
#endif
|