71 lines
1.2 KiB
C
71 lines
1.2 KiB
C
#define _MOUNT_C
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#include <stdio.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <mntent.h>
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#include <sys/mount.h>
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#include "config.h"
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static int parse_fstab(unsigned long flag) {
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FILE *fp = setmntent(MOUNT_CFG, "r");
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if (fp == NULL) {
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fprintf(stderr, "umount: %s\n", strerror(errno));
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return 1;
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}
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struct mntent *me;
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int ret = 0;
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while ((me = getmntent(fp))) {
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puts(me->mnt_dir);
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if (umount2(me->mnt_dir, flag) < 0) {
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fprintf(stderr, "umount: %s: %s\n", me->mnt_dir, strerror(errno));
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ret = 1;
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}
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}
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endmntent(fp);
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return ret;
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}
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int main(int argc, char **argv) {
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unsigned long flag = 0;
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int opt;
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while ((opt = getopt(argc, argv, "afl")) != -1) {
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switch (opt) {
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case 'a':
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return parse_fstab(flag);
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case 'f':
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flag |= MNT_FORCE;
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break;
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case 'l':
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flag |= MNT_DETACH;
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break;
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default:
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puts("umount [afl] [dst1 dst2...]\n\t-a Umount all\n\t-f Force umount\n\t-l Lazy umount");
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return 0;
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}
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}
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argv += optind;
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argc -= optind;
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int ret = 0;
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for (int i = 0; i < argc; i++) {
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if (umount2(argv[i], flag) < 0) {
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fprintf(stderr, "umount: %s: %s\n", argv[i], strerror(errno));
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ret = 1;
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}
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}
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return ret;
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}
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