/* 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 erase_mtab(const char *name) { struct mntent *entries = NULL; int i, count = 0; 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; } while ((m = getmntent(mountTable)) != 0) { i = count++; entries = xrealloc(entries, count * sizeof(entries[0])); entries[i].mnt_fsname = xstrdup(m->mnt_fsname); entries[i].mnt_dir = xstrdup(m->mnt_dir); entries[i].mnt_type = xstrdup(m->mnt_type); entries[i].mnt_opts = xstrdup(m->mnt_opts); entries[i].mnt_freq = m->mnt_freq; entries[i].mnt_passno = m->mnt_passno; } endmntent(mountTable); 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