1 files changed, 0 insertions, 298 deletions
diff --git a/umount.c b/umount.c
deleted file mode 100644
index 74638d21c..000000000
--- a/umount.c
+++ /dev/null
@@ -1,298 +0,0 @@
-/* vi: set sw=4 ts=4: */
-/*
- * Mini umount implementation for busybox
- *
- *
- * Copyright (C) 1999,2000,2001 by Lineo, inc.
- * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include <limits.h>
-#include <stdio.h>
-#include <mntent.h>
-#include <errno.h>
-#include <string.h>
-#include <stdlib.h>
-#include "busybox.h"
-
-/* Teach libc5 about realpath -- it includes it but the 
- * prototype is missing... */
-#if (__GLIBC__ <= 2) && (__GLIBC_MINOR__ < 1)
-extern char *realpath(const char *path, char *resolved_path);
-#endif
-
-static const int MNT_FORCE = 1;
-static const int MS_MGC_VAL = 0xc0ed0000; /* Magic number indicatng "new" flags */
-static const int MS_REMOUNT = 32;	/* Alter flags of a mounted FS.  */
-static const int MS_RDONLY = 1;	/* Mount read-only.  */
-
-extern int mount (__const char *__special_file, __const char *__dir,
-			__const char *__fstype, unsigned long int __rwflag,
-			__const void *__data);
-extern int umount (__const char *__special_file);
-extern int umount2 (__const char *__special_file, int __flags);
-
-struct _mtab_entry_t {
-	char *device;
-	char *mountpt;
-	struct _mtab_entry_t *next;
-};
-
-static struct _mtab_entry_t *mtab_cache = NULL;
-
-
-
-#if defined BB_FEATURE_MOUNT_FORCE
-static int doForce = FALSE;
-#endif
-#if defined BB_FEATURE_MOUNT_LOOP
-static int freeLoop = TRUE;
-#endif
-#if defined BB_FEATURE_MTAB_SUPPORT
-static int useMtab = TRUE;
-#endif
-static int umountAll = FALSE;
-static int doRemount = FALSE;
-extern const char mtab_file[];	/* Defined in utility.c */
-
-
-
-/* These functions are here because the getmntent functions do not appear
- * to be re-entrant, which leads to all sorts of problems when we try to
- * use them recursively - randolph
- *
- * TODO: Perhaps switch to using Glibc's getmntent_r
- *        -Erik
- */
-static void mtab_read(void)
-{
-	struct _mtab_entry_t *entry = NULL;
-	struct mntent *e;
-	FILE *fp;
-
-	if (mtab_cache != NULL)
-		return;
-
-	if ((fp = setmntent(mtab_file, "r")) == NULL) {
-		error_msg("Cannot open %s", mtab_file);
-		return;
-	}
-	while ((e = getmntent(fp))) {
-		entry = xmalloc(sizeof(struct _mtab_entry_t));
-		entry->device = strdup(e->mnt_fsname);
-		entry->mountpt = strdup(e->mnt_dir);
-		entry->next = mtab_cache;
-		mtab_cache = entry;
-	}
-	endmntent(fp);
-}
-
-static char *mtab_getinfo(const char *match, const char which)
-{
-	struct _mtab_entry_t *cur = mtab_cache;
-
-	while (cur) {
-		if (strcmp(cur->mountpt, match) == 0 ||
-			strcmp(cur->device, match) == 0) {
-			if (which == MTAB_GETMOUNTPT) {
-				return cur->mountpt;
-			} else {
-#if !defined BB_FEATURE_MTAB_SUPPORT
-				if (strcmp(cur->device, "/dev/root") == 0) {
-					/* Adjusts device to be the real root device,
-					 * or leaves device alone if it can't find it */
-					cur->device = find_real_root_device_name(cur->device);
-				}
-#endif
-				return cur->device;
-			}
-		}
-		cur = cur->next;
-	}
-	return NULL;
-}
-
-static char *mtab_next(void **iter)
-{
-	char *mp;
-
-	if (iter == NULL || *iter == NULL)
-		return NULL;
-	mp = ((struct _mtab_entry_t *) (*iter))->mountpt;
-	*iter = (void *) ((struct _mtab_entry_t *) (*iter))->next;
-	return mp;
-}
-
-static char *mtab_first(void **iter)
-{
-	struct _mtab_entry_t *mtab_iter;
-
-	if (!iter)
-		return NULL;
-	mtab_iter = mtab_cache;
-	*iter = (void *) mtab_iter;
-	return mtab_next(iter);
-}
-
-/* Don't bother to clean up, since exit() does that 
- * automagically, so we can save a few bytes */
-#ifdef BB_FEATURE_CLEAN_UP
-static void mtab_free(void)
-{
-	struct _mtab_entry_t *this, *next;
-
-	this = mtab_cache;
-	while (this) {
-		next = this->next;
-		if (this->device)
-			free(this->device);
-		if (this->mountpt)
-			free(this->mountpt);
-		free(this);
-		this = next;
-	}
-}
-#endif
-
-static int do_umount(const char *name)
-{
-	int status;
-	char *blockDevice = mtab_getinfo(name, MTAB_GETDEVICE);
-
-	if (blockDevice && strcmp(blockDevice, name) == 0)
-		name = mtab_getinfo(blockDevice, MTAB_GETMOUNTPT);
-
-	status = umount(name);
-
-#if defined BB_FEATURE_MOUNT_LOOP
-	if (freeLoop == TRUE && blockDevice != NULL && !strncmp("/dev/loop", blockDevice, 9))
-		/* this was a loop device, delete it */
-		del_loop(blockDevice);
-#endif
-#if defined BB_FEATURE_MOUNT_FORCE
-	if (status != 0 && doForce == TRUE) {
-		status = umount2(blockDevice, MNT_FORCE);
-		if (status != 0) {
-			error_msg_and_die("forced umount of %s failed!", blockDevice);
-		}
-	}
-#endif
-	if (status != 0 && doRemount == TRUE && errno == EBUSY) {
-		status = mount(blockDevice, name, NULL,
-					   MS_MGC_VAL | MS_REMOUNT | MS_RDONLY, NULL);
-		if (status == 0) {
-			error_msg("%s busy - remounted read-only", blockDevice);
-		} else {
-			error_msg("Cannot remount %s read-only", blockDevice);
-		}
-	}
-	if (status == 0) {
-#if defined BB_FEATURE_MTAB_SUPPORT
-		if (useMtab == TRUE)
-			erase_mtab(name);
-#endif
-		return (TRUE);
-	}
-	return (FALSE);
-}
-
-static int umount_all(void)
-{
-	int status = TRUE;
-	char *mountpt;
-	void *iter;
-
-	for (mountpt = mtab_first(&iter); mountpt; mountpt = mtab_next(&iter)) {
-		/* Never umount /proc on a umount -a */
-		if (strstr(mountpt, "proc")!= NULL)
-			continue;
-		if (!do_umount(mountpt)) {
-			/* Don't bother retrying the umount on busy devices */
-			if (errno == EBUSY) {
-				perror_msg("%s", mountpt);
-				status = FALSE;
-				continue;
-			}
-			if (!do_umount(mountpt)) {
-				printf("Couldn't umount %s on %s: %s\n",
-					   mountpt, mtab_getinfo(mountpt, MTAB_GETDEVICE),
-					   strerror(errno));
-				status = FALSE;
-			}
-		}
-	}
-	return (status);
-}
-
-extern int umount_main(int argc, char **argv)
-{
-	char path[PATH_MAX];
-
-	if (argc < 2) {
-		show_usage();
-	}
-#ifdef BB_FEATURE_CLEAN_UP
-	atexit(mtab_free);
-#endif
-
-	/* Parse any options */
-	while (--argc > 0 && **(++argv) == '-') {
-		while (*++(*argv))
-			switch (**argv) {
-			case 'a':
-				umountAll = TRUE;
-				break;
-#if defined BB_FEATURE_MOUNT_LOOP
-			case 'l':
-				freeLoop = FALSE;
-				break;
-#endif
-#ifdef BB_FEATURE_MTAB_SUPPORT
-			case 'n':
-				useMtab = FALSE;
-				break;
-#endif
-#ifdef BB_FEATURE_MOUNT_FORCE
-			case 'f':
-				doForce = TRUE;
-				break;
-#endif
-			case 'r':
-				doRemount = TRUE;
-				break;
-			case 'v':
-				break; /* ignore -v */
-			default:
-				show_usage();
-			}
-	}
-
-	mtab_read();
-	if (umountAll == TRUE) {
-		if (umount_all() == TRUE)
-			return EXIT_SUCCESS;
-		else
-			return EXIT_FAILURE;
-	}
-	if (realpath(*argv, path) == NULL)
-		perror_msg_and_die("%s", path);
-	if (do_umount(path) == TRUE)
-		return EXIT_SUCCESS;
-	perror_msg_and_die("%s", *argv);
-}
-