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Implement -l support for umount

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This operation is not supported on OpenBSD so just
set errno to ENOTSUP.
This commit is contained in:
sin 2013-08-07 10:33:19 +01:00
parent d4c1710911
commit 9fbe1e6e66
4 changed files with 16 additions and 5 deletions
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2
linux/umount.c
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@ -10,5 +10,7 @@ do_umount(const char *target, int opts)
if (opts & UBASE_MNT_FORCE)
flags |= MNT_FORCE;
if (opts & UBASE_MNT_DETACH)
flags |= MNT_DETACH;
return umount2(target, flags);
}

5
openbsd/umount.c
View File

@ -1,5 +1,6 @@
#include <sys/param.h>
#include <sys/mount.h>
#include <errno.h>
#include <stdio.h>
#include "../ubase.h"
#include "../util.h"
@ -11,5 +12,9 @@ do_umount(const char *target, int opts)
if (opts & UBASE_MNT_FORCE)
flags |= MNT_FORCE;
if (opts & UBASE_MNT_DETACH) {
errno = ENOTSUP;
return -1;
}
return unmount(target, flags);
}

3
ubase.h
View File

@ -14,7 +14,8 @@ int syslog_read(void *buf, size_t n);
/* umount.c */
enum {
UBASE_MNT_FORCE = 1 << 0
UBASE_MNT_FORCE = 1 << 0,
UBASE_MNT_DETACH = 1 << 1
};
int do_umount(const char *target, int opts);

11
umount.c
View File

@ -5,18 +5,21 @@
static void
usage(void)
{
eprintf("usage: %s [-f] target\n", argv0);
eprintf("usage: %s [-lf] target\n", argv0);
}
int
main(int argc, char *argv[]) {
int i;
int fflag = 0;
int flags = 0;
int ret = 0;
ARGBEGIN {
case 'f':
fflag = UBASE_MNT_FORCE;
flags |= UBASE_MNT_FORCE;
break;
case 'l':
flags |= UBASE_MNT_DETACH;
break;
default:
usage();
@ -24,7 +27,7 @@ main(int argc, char *argv[]) {
if (argc < 1)
usage();
for (i = 0; i < argc; i++) {
if (do_umount(argv[i], fflag) < 0)
if (do_umount(argv[i], flags) < 0)
eprintf("do_umount:");
ret = 1;
}