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_swapon(int argc, char *argv[]) {
int status = 0;
int c, i;
while ((c = getopt_long(argc, argv, "ahdefp:svVL:U:",
longswaponopts, NULL)) != -1) {
switch (c) {
case 'a': /* all */
++all;
break;
case 'h': /* help */
swapon_usage(stdout, 0);
break;
case 'p': /* priority */
priority = atoi(optarg);
break;
case 'L':
addl(optarg);
break;
case 'U':
addu(optarg);
break;
case 'd':
discard = 1;
break;
case 'e': /* ifexists */
ifexists = 1;
break;
case 'f':
fixpgsz = 1;
break;
case 's': /* status report */
status = display_summary();
exit(status);
case 'v': /* be chatty */
++verbose;
break;
case 'V': /* version */
printf(_("%s (%s)\n"), progname, PACKAGE_STRING);
exit(EXIT_SUCCESS);
case 0:
break;
case '?':
default:
swapon_usage(stderr, 1);
}
}
argv += optind;
if (!all && !llct && !ulct && *argv == NULL)
swapon_usage(stderr, 2);
if (ifexists && (!all || strcmp(progname, "swapon")))
swapon_usage(stderr, 1);
if (all)
status |= swapon_all();
for (i = 0; i < llct; i++)
status |= swapon_by_label(llist[i], priority, discard);
for (i = 0; i < ulct; i++)
status |= swapon_by_uuid(ulist[i], priority, discard);
while (*argv != NULL)
status |= do_swapon(*argv++, priority, discard, !CANONIC);
return status;
}
static int
swapon_by_uuid(const char *uuid, int prio, int dsc) {
const char *special = fsprobe_get_devname_by_uuid(uuid);
return special ? do_swapon(special, prio, dsc, CANONIC) :
cannot_find(uuid);
}
static int
swapon_by_label(const char *label, int prio, int dsc) {
const char *special = fsprobe_get_devname_by_label(label);
return special ? do_swapon(special, prio, dsc, CANONIC) :
cannot_find(label);
}
static int
swapon_by_uuid(const char *uuid, int prio) {
const char *special = mount_get_devname_by_uuid(uuid);
return special ? do_swapon(special, prio) : cannot_find(uuid);
}
static int
swapon_by_label(const char *label, int prio) {
const char *special = mount_get_devname_by_label(label);
return special ? do_swapon(special, prio) : cannot_find(label);
}