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	swapoff.c - ubase - suckless linux base utils
	git clone git://git.suckless.org/ubase
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	swapoff.c (965B)
	---
	1 /* See LICENSE file for copyright and license details. */
	2 #include <sys/swap.h>
	3
	4 #include <mntent.h>
	5 #include <stdio.h>
	6 #include <stdlib.h>
	7 #include <string.h>
	8
	9 #include "util.h"
	10
	11 static void
	12 usage(void)
	13 {
	14 eprintf("usage: %s -a \| device\n", argv0);
	15 }
	16
	17 int
	18 main(int argc, char *argv[])
	19 {
	20 int i;
	21 int ret = 0;
	22 int all = 0;
	23 struct mntent *me;
	24 FILE *fp;
	25
	26 ARGBEGIN {
	27 case 'a':
	28 all = 1;
	29 break;
	30 default:
	31 usage();
	32 } ARGEND;
	33
	34 if ((!all && argc < 1) \|\| (all && argc > 0))
	35 usage();
	36
	37 if (all) {
	38 fp = setmntent("/etc/fstab", "r");
	39 if (!fp)
	40 eprintf("setmntent %s:", "/etc/fstab");
	41 while ((me = getmntent(fp)) != NULL) {
	42 if (strcmp(me->mnt_type, MNTTYPE_SWAP) == 0) {
	43 if (swapoff(me->mnt_fsname) < 0) {
	44 weprintf("swapoff %s:", me->mnt_…
	45 ret = 1;
	46 }
	47 }
	48 }
	49 endmntent(fp);
	50 } else {
	51 for (i = 0; i < argc; i++) {
	52 if (swapoff(argv[i]) < 0) {
	53 weprintf("swapoff %s:", argv[i]);
	54 ret = 1;
	55 }
	56 }
	57 }
	58 return ret;
	59 }