ubase/umount.c

70 lines
1.1 KiB
C

/* See LICENSE file for copyright and license details. */
#include <mntent.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mount.h>
#include "util.h"
static void
usage(void)
{
weprintf("usage: %s [-lfn] target\n", argv0);
weprintf("usage: %s -a [-lfn]\n", argv0);
exit(EXIT_FAILURE);
}
int
main(int argc, char *argv[])
{
int i;
int aflag = 0;
int flags = 0;
int ret = EXIT_SUCCESS;
FILE *fp;
struct mntent *me;
ARGBEGIN {
case 'a':
aflag = 1;
break;
case 'f':
flags |= MNT_FORCE;
break;
case 'l':
flags |= MNT_DETACH;
break;
case 'n':
break;
default:
usage();
} ARGEND;
if (argc < 1 && aflag == 0)
usage();
if (aflag == 1) {
fp = setmntent("/etc/mtab", "r");
if (!fp)
eprintf("setmntent %s:", "/etc/mtab");
while ((me = getmntent(fp))) {
if (strcmp(me->mnt_type, "proc") == 0)
continue;
if (umount2(me->mnt_dir, flags) < 0) {
weprintf("umount2 %s:", me->mnt_dir);
ret = EXIT_FAILURE;
}
}
endmntent(fp);
return ret;
}
for (i = 0; i < argc; i++) {
if (umount2(argv[i], flags) < 0) {
weprintf("umount2 %s:", argv[i]);
ret = EXIT_FAILURE;
}
}
return ret;
}