ubase/swapoff.c

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C
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/* See LICENSE file for copyright and license details. */
#include <sys/swap.h>
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#include <mntent.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"
static void
usage(void)
{
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eprintf("usage: %s [-a] device\n", argv0);
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}
int
main(int argc, char *argv[])
{
int i;
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int ret = EXIT_SUCCESS;
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int all = 0;
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ARGBEGIN {
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case 'a':
all = 1;
break;
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default:
usage();
} ARGEND;
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if (!all && argc < 1)
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usage();
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if (all) {
struct mntent *me = NULL;
FILE *fp;
fp = setmntent("/etc/fstab", "r");
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if (!fp)
eprintf("setmntent %s:", "/etc/fstab");
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while ((me = getmntent(fp)) != NULL) {
if (strcmp(me->mnt_type, MNTTYPE_SWAP) == 0) {
if (swapoff(me->mnt_fsname) < 0) {
weprintf("swapoff %s:", me->mnt_fsname);
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ret = EXIT_FAILURE;
}
}
}
endmntent(fp);
} else {
for (i = 0; i < argc; i++) {
if (swapoff(argv[i]) < 0) {
weprintf("swapoff %s:", argv[i]);
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ret = EXIT_FAILURE;
}
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}
}
return ret;
}