static int
swapon_all(void) {
FILE *fp;
struct mntent *fstab;
int status = 0;
read_proc_swaps();
fp = setmntent(_PATH_MNTTAB, "r");
if (fp == NULL)
err(2, _("%s: open failed"), _PATH_MNTTAB);
while ((fstab = getmntent(fp)) != NULL) {
const char *special;
int skip = 0, nofail = ifexists;
int pri = priority, dsc = discard;
char *opt, *opts;
if (!streq(fstab->mnt_type, MNTTYPE_SWAP))
continue;
opts = strdup(fstab->mnt_opts);
for (opt = strtok(opts, ","); opt != NULL;
opt = strtok(NULL, ",")) {
if (strncmp(opt, "pri=", 4) == 0)
pri = atoi(opt+4);
if (strcmp(opt, "discard") == 0)
dsc = 1;
if (strcmp(opt, "noauto") == 0)
skip = 1;
if (strcmp(opt, "nofail") == 0)
nofail = 1;
}
free(opts);
if (skip)
continue;
special = fsprobe_get_devname_by_spec(fstab->mnt_fsname);
if (!special) {
if (!nofail)
status |= cannot_find(fstab->mnt_fsname);
continue;
}
if (!is_in_proc_swaps(special) &&
(!nofail || !access(special, R_OK)))
status |= do_swapon(special, pri, dsc, CANONIC);
free((void *) special);
}
fclose(fp);
return status;
}
static int
swapon_all(void) {
FILE *fp;
struct mntent *fstab;
int status = 0;
read_proc_swaps();
fp = setmntent(_PATH_FSTAB, "r");
if (fp == NULL) {
int errsv = errno;
fprintf(stderr, _("%s: cannot open %s: %s\n"),
progname, _PATH_FSTAB, strerror(errsv));
exit(2);
}
while ((fstab = getmntent(fp)) != NULL) {
const char *orig_special = fstab->mnt_fsname;
const char *special;
int skip = 0;
int pri = priority;
if (!streq(fstab->mnt_type, MNTTYPE_SWAP))
continue;
special = mount_get_devname(orig_special);
if (!special)
continue;
if (!is_in_proc_swaps(special) &&
(!ifexists || !access(special, R_OK))) {
/* parse mount options; */
char *opt, *opts = strdup(fstab->mnt_opts);
for (opt = strtok(opts, ","); opt != NULL;
opt = strtok(NULL, ",")) {
if (strncmp(opt, "pri=", 4) == 0)
pri = atoi(opt+4);
if (strcmp(opt, "noauto") == 0)
skip = 1;
}
if (!skip)
status |= do_swapon(special, pri);
}
}
fclose(fp);
return status;
}
static int
main_swapoff(int argc, char *argv[]) {
FILE *fp;
struct mntent *fstab;
int status = 0;
int c, i;
while ((c = getopt_long(argc, argv, "ahvVL:U:",
longswapoffopts, NULL)) != -1) {
switch (c) {
case 'a': /* all */
++all;
break;
case 'h': /* help */
swapoff_usage(stdout, 0);
break;
case 'v': /* be chatty */
++verbose;
break;
case 'V': /* version */
printf(_("%s (%s)\n"), progname, PACKAGE_STRING);
exit(EXIT_SUCCESS);
case 'L':
addl(optarg);
break;
case 'U':
addu(optarg);
break;
case 0:
break;
case '?':
default:
swapoff_usage(stderr, 1);
}
}
argv += optind;
if (!all && !llct && !ulct && *argv == NULL)
swapoff_usage(stderr, 2);
/*
* swapoff any explicitly given arguments.
* Complain in case the swapoff call fails.
*/
for (i = 0; i < llct; i++)
status |= swapoff_by_label(llist[i], !QUIET);
for (i = 0; i < ulct; i++)
status |= swapoff_by_uuid(ulist[i], !QUIET);
while (*argv != NULL)
status |= do_swapoff(*argv++, !QUIET, !CANONIC);
if (all) {
/*
* In case /proc/swaps exists, unswap stuff listed there.
* We are quiet but report errors in status.
* Errors might mean that /proc/swaps
* exists as ordinary file, not in procfs.
* do_swapoff() exits immediately on EPERM.
*/
read_proc_swaps();
for(i=0; i<numSwaps; i++)
status |= do_swapoff(swapFiles[i], QUIET, CANONIC);
/*
* Unswap stuff mentioned in /etc/fstab.
* Probably it was unmounted already, so errors are not bad.
* Doing swapoff -a twice should not give error messages.
*/
fp = setmntent(_PATH_MNTTAB, "r");
if (fp == NULL)
err(2, _("%s: open failed"), _PATH_MNTTAB);
while ((fstab = getmntent(fp)) != NULL) {
const char *special;
if (!streq(fstab->mnt_type, MNTTYPE_SWAP))
continue;
special = fsprobe_get_devname_by_spec(fstab->mnt_fsname);
if (!special)
continue;
if (!is_in_proc_swaps(special))
do_swapoff(special, QUIET, CANONIC);
}
fclose(fp);
}
return status;
}
