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sbase
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Make mount(8) work based on device id and inode number

This commit is contained in:
sin 2013-08-31 17:39:17 +01:00
parent 1927d28990
commit 7afa5b8791
1 changed files with 13 additions and 2 deletions
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15
mount.c
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@ -1,5 +1,7 @@
/* See LICENSE file for copyright and license details. */ /* See LICENSE file for copyright and license details. */
#include <sys/mount.h> #include <sys/mount.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h> #include <unistd.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
@ -41,6 +43,7 @@ main(int argc, char *argv[])
char *types = NULL, *opt = NULL, *p; char *types = NULL, *opt = NULL, *p;
const char *source; const char *source;
const char *target; const char *target;
struct stat st1, st2;
int validopt; int validopt;
void *data = NULL; void *data = NULL;
struct mntinfo *minfo = NULL; struct mntinfo *minfo = NULL;
@ -103,12 +106,20 @@ main(int argc, char *argv[])
if (!target) { if (!target) {
target = source; target = source;
source = NULL; source = NULL;
if (stat(target, &st1) < 0)
eprintf("stat %s:", target);
siz = grabmntinfo(&minfo); siz = grabmntinfo(&minfo);
if (!siz) if (!siz)
eprintf("grabmntinfo:"); eprintf("grabmntinfo:");
for (i = 0; i < siz; i++) for (i = 0; i < siz; i++) {
if (!strcmp(minfo[i].mntdir, target)) if (stat(minfo[i].mntdir, &st2) < 0)
eprintf("stat %s:", minfo[i].mntdir);
if (st1.st_dev == st2.st_dev &&
st1.st_ino == st2.st_ino) {
source = minfo[i].fsname; source = minfo[i].fsname;
break;
}
}
if (!source) if (!source)
enprintf(1, "can't find %s mountpoint\n", enprintf(1, "can't find %s mountpoint\n",
target); target);