68 lines
1.2 KiB
C
68 lines
1.2 KiB
C
/* See LICENSE file for copyright and license details. */
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#include <sys/swap.h>
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#include <mntent.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "util.h"
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static void
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usage(void)
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{
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eprintf("usage: %s [-dp] [-a] device\n", argv0);
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}
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int
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main(int argc, char *argv[])
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{
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int i;
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int ret = EXIT_SUCCESS;
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int flags = 0;
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int all = 0;
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ARGBEGIN {
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case 'a':
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all = 1;
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break;
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case 'd':
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flags |= SWAP_FLAG_DISCARD;
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break;
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case 'p':
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flags |= SWAP_FLAG_PREFER;
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break;
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default:
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usage();
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} ARGEND;
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if (!all && argc < 1)
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usage();
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if (all) {
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struct mntent *me = NULL;
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FILE *fp;
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fp = setmntent("/etc/fstab", "r");
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while ((me = getmntent(fp)) != NULL) {
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if (strcmp(me->mnt_type, MNTTYPE_SWAP) == 0
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&& (hasmntopt(me, MNTOPT_NOAUTO) == NULL)) {
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if (swapon(me->mnt_fsname, flags) < 0) {
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fprintf(stderr, "swapon %s: %s\n",
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me->mnt_fsname, strerror(errno));
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ret = EXIT_FAILURE;
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}
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}
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}
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endmntent(fp);
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} else {
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for (i = 0; i < argc; i++) {
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if (swapon(argv[i], flags) < 0) {
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fprintf(stderr, "swapon %s: %s\n",
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argv[i], strerror(errno));
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ret = EXIT_FAILURE;
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}
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}
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}
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return ret;
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}
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