ubase/umount.c

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