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Use kernel mount info rather than fstab. From greywolf@starwolf.com, slightly 

modified.
This commit is contained in:
mycroft 1996-05-11 14:13:55 +00:00
parent 50c94f92ce
commit daa86d7011
1 changed files with 17 additions and 30 deletions
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55
sbin/umount/umount.c
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@ -1,4 +1,4 @@
/* $NetBSD: umount.c,v 1.15 1995/09/22 02:03:48 mycroft Exp $ */
/* $NetBSD: umount.c,v 1.16 1996/05/11 14:13:55 mycroft Exp $ */
/*-
* Copyright (c) 1980, 1989, 1993
@ -43,7 +43,7 @@ static char copyright[] =
#if 0
static char sccsid[] = "@(#)umount.c 8.3 (Berkeley) 2/20/94";
#else
static char rcsid[] = "$NetBSD: umount.c,v 1.15 1995/09/22 02:03:48 mycroft Exp $";
static char rcsid[] = "$NetBSD: umount.c,v 1.16 1996/05/11 14:13:55 mycroft Exp $";
#endif
#endif /* not lint */
@ -130,11 +130,9 @@ main(argc, argv)
if ((nfshost != NULL) && (typelist == NULL))
maketypelist("nfs");
if (all) {
if (setfsent() == 0)
err(1, "%s", _PATH_FSTAB);
if (all)
errs = umountall();
} else
else
for (errs = 0; *argv != NULL; ++argv)
if (umountfs(*argv) != 0)
errs = 1;
@ -144,38 +142,27 @@ main(argc, argv)
int
umountall()
{
struct fstab *fs;
struct statfs *fs;
int n;
int rval;
char *cp;
while ((fs = getfsent()) != NULL) {
/* Ignore the root. */
if (strcmp(fs->fs_file, "/") == 0)
continue;
/*
* !!!
* Historic practice: ignore unknown FSTAB_* fields.
*/
if (strcmp(fs->fs_type, FSTAB_RW) &&
strcmp(fs->fs_type, FSTAB_RO) &&
strcmp(fs->fs_type, FSTAB_RQ))
continue;
if (!selected(fs->fs_vfstype))
continue;
/*
* We want to unmount the file systems in the reverse order
* that they were mounted. So, we save off the file name
* in some allocated memory, and then call recursively.
*/
if ((cp = malloc((size_t)strlen(fs->fs_file) + 1)) == NULL)
n = getmntinfo(&fs, MNT_NOWAIT);
if (n == 0)
err(1, NULL);
(void)strcpy(cp, fs->fs_file);
rval = umountall();
return (umountfs(cp) || rval);
rval = 0;
while (--n >= 0) {
/* Ignore the root. */
if (strncmp(fs[n].f_mntonname, "/", MNAMELEN) == 0)
continue;
if (!selected(fs[n].f_fstypename))
continue;
if (umountfs(fs[n].f_mntonname))
rval = 1;
}
return (0);
return (rval);
}
int