static int get_filesystems(const char *filename, char ***filesystems, const char *pattern) { int rc = 0; FILE *f; char line[128]; f = fopen(filename, "r"); if (!f) return 1; DBG(UTILS, mnt_debug("reading filesystems list from: %s", filename)); while (fgets(line, sizeof(line), f)) { char name[sizeof(line)]; if (*line == '#' || strncmp(line, "nodev", 5) == 0) continue; if (sscanf(line, " %128[^\n ]\n", name) != 1) continue; if (strcmp(name, "*") == 0) { rc = 1; break; /* end of the /etc/filesystems */ } if (pattern && !mnt_match_fstype(name, pattern)) continue; rc = add_filesystem(filesystems, name); if (rc) break; } fclose(f); return rc; }
int test_match_fstype(struct libmnt_test *ts, int argc, char *argv[]) { char *type = argv[1]; char *pattern = argv[2]; printf("%s\n", mnt_match_fstype(type, pattern) ? "MATCH" : "NOT-MATCH"); return 0; }
/** * mnt_fs_match_fstype: * @fs: filesystem * @types: filesystem name or comma delimited list of filesystems * * For more details see mnt_match_fstype(). * * Returns: 1 if @fs type is matching to @types else 0. The function returns * 0 when types is NULL. */ int mnt_fs_match_fstype(mnt_fs *fs, const char *types) { return mnt_match_fstype(fs->fstype, types); }
static int umount_main(struct libmnt_context *cxt, int argc, char **argv) { int rc, c; char *spec = NULL, *opts = NULL; int ret = EX_FAIL; static const struct option longopts[] = { { "force", 0, 0, 'f' }, { "help", 0, 0, 'h' }, { "no-mtab", 0, 0, 'n' }, { "verbose", 0, 0, 'v' }, { "read-only", 0, 0, 'r' }, { "lazy", 0, 0, 'l' }, { "types", 1, 0, 't' }, { NULL, 0, 0, 0 } }; mnt_context_init_helper(cxt, MNT_ACT_UMOUNT, 0); while ((c = getopt_long (argc, argv, "fvnrlh", longopts, NULL)) != -1) { rc = mnt_context_helper_setopt(cxt, c, optarg); if (rc == 0) /* valid option */ continue; if (rc < 0) /* error (probably ENOMEM) */ goto err; /* rc==1 means unknow option */ umount_usage(); return EX_USAGE; } if (optind < argc) spec = argv[optind++]; if (!spec || (*spec != '/' && strchr(spec,':') == NULL)) { nfs_error(_("%s: no mount point provided"), progname); return EX_USAGE; } if (mnt_context_set_target(cxt, spec)) goto err; /* read mtab/fstab, evaluate permissions, etc. */ rc = mnt_context_prepare_umount(cxt); if (rc) { nfs_error(_("%s: failed to prepare umount: %s\n"), progname, strerror(-rc)); goto err; } if (mnt_context_get_fstype(cxt) && !mnt_match_fstype(mnt_context_get_fstype(cxt), "nfs,nfs4")) { nfs_error(_("%s: %s: is not an NFS filesystem"), progname, spec); ret = EX_USAGE; goto err; } opts = retrieve_mount_options(mnt_context_get_fs(cxt)); if (!mnt_context_is_lazy(cxt)) { if (opts) { /* we have full FS description (e.g. from mtab or /proc) */ switch (is_vers4(cxt)) { case 0: /* We ignore the error from nfs_umount23. * If the actual umount succeeds (in del_mtab), * we don't want to signal an error, as that * could cause /sbin/mount to retry! */ nfs_umount23(mnt_context_get_source(cxt), opts); break; case 1: /* unknown */ break; default: /* error */ goto err; } } else /* strange, no entry in mtab or /proc not mounted */ nfs_umount23(spec, "tcp,v3"); } ret = EX_FILEIO; rc = mnt_context_do_umount(cxt); /* call umount(2) syscall */ mnt_context_finalize_mount(cxt); /* mtab update */ if (rc && !mnt_context_get_status(cxt)) { /* mnt_context_do_umount() returns errno if umount(2) failed */ umount_error(rc, spec); goto err; } ret = EX_SUCCESS; err: free(opts); return ret; }