1 files changed, 0 insertions, 387 deletions

diff --git a/libblkid/ismounted.c b/libblkid/ismounted.c
deleted file mode 100644
index d9f1f57d0..000000000
--- a/libblkid/ismounted.c
+++ /dev/null
@@ -1,387 +0,0 @@
-/*
- * ismounted.c --- Check to see if the filesystem was mounted
- *
- * Copyright (C) 1995,1996,1997,1998,1999,2000,2008 Theodore Ts'o.
- *
- * This file may be redistributed under the terms of the GNU Public
- * License.
- */
-#include <stdio.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <fcntl.h>
-#ifdef HAVE_MNTENT_H
-#include <mntent.h>
-#endif
-#include <string.h>
-#include <sys/stat.h>
-#include <ctype.h>
-#include <sys/param.h>
-#ifdef __APPLE__
-#include <sys/ucred.h>
-#include <sys/mount.h>
-#endif
-
-#include "pathnames.h"
-#include "ismounted.h"
-#include "c.h"
-#ifdef __linux__
-# include "loopdev.h"
-#endif
-
-
-
-#ifdef HAVE_MNTENT_H
-/*
- * Helper function which checks a file in /etc/mtab format to see if a
- * filesystem is mounted.  Returns an error if the file doesn't exist
- * or can't be opened.
- */
-static int check_mntent_file(const char *mtab_file, const char *file,
-				   int *mount_flags, char *mtpt, int mtlen)
-{
-	struct mntent	*mnt;
-	struct stat	st_buf;
-	int		retval = 0;
-	dev_t		file_dev=0, file_rdev=0;
-	ino_t		file_ino=0;
-	FILE		*f;
-	int		fd;
-
-	*mount_flags = 0;
-	if ((f = setmntent (mtab_file, "r")) == NULL)
-		return errno;
-
-	if (stat(file, &st_buf) == 0) {
-		if (S_ISBLK(st_buf.st_mode)) {
-#ifndef __GNU__ /* The GNU hurd is broken with respect to stat devices */
-			file_rdev = st_buf.st_rdev;
-#endif	/* __GNU__ */
-		} else {
-			file_dev = st_buf.st_dev;
-			file_ino = st_buf.st_ino;
-		}
-	}
-
-	while ((mnt = getmntent (f)) != NULL) {
-		if (mnt->mnt_fsname[0] != '/')
-			continue;
-		if (strcmp(file, mnt->mnt_fsname) == 0)
-			break;
-		if (stat(mnt->mnt_fsname, &st_buf) != 0)
-			continue;
-
-		if (S_ISBLK(st_buf.st_mode)) {
-#ifndef __GNU__
-			if (file_rdev && file_rdev == st_buf.st_rdev)
-				break;
-#ifdef __linux__
-			/* maybe the file is loopdev backing file */
-			if (file_dev
-			    && major(st_buf.st_rdev) == LOOPDEV_MAJOR
-			    && loopdev_is_used(mnt->mnt_fsname, file, 0, 0))
-				break;
-#endif /* __linux__ */
-#endif	/* __GNU__ */
-		} else {
-			if (file_dev && ((file_dev == st_buf.st_dev) &&
-					 (file_ino == st_buf.st_ino)))
-				break;
-		}
-	}
-
-	if (mnt == NULL) {
-#ifndef __GNU__ /* The GNU hurd is broken with respect to stat devices */
-		/*
-		 * Do an extra check to see if this is the root device.  We
-		 * can't trust /etc/mtab, and /proc/mounts will only list
-		 * /dev/root for the root filesystem.  Argh.  Instead we
-		 * check if the given device has the same major/minor number
-		 * as the device that the root directory is on.
-		 */
-		if (file_rdev && stat("/", &st_buf) == 0 &&
-		    st_buf.st_dev == file_rdev) {
-			*mount_flags = MF_MOUNTED;
-			if (mtpt)
-				strncpy(mtpt, "/", mtlen);
-			goto is_root;
-		}
-#endif	/* __GNU__ */
-		goto errout;
-	}
-#ifndef __GNU__ /* The GNU hurd is deficient; what else is new? */
-	/* Validate the entry in case /etc/mtab is out of date */
-	/*
-	 * We need to be paranoid, because some broken distributions
-	 * (read: Slackware) don't initialize /etc/mtab before checking
-	 * all of the non-root filesystems on the disk.
-	 */
-	if (stat(mnt->mnt_dir, &st_buf) < 0) {
-		retval = errno;
-		if (retval == ENOENT) {
-#ifdef DEBUG
-			printf("Bogus entry in %s!  (%s does not exist)\n",
-			       mtab_file, mnt->mnt_dir);
-#endif /* DEBUG */
-			retval = 0;
-		}
-		goto errout;
-	}
-	if (file_rdev && (st_buf.st_dev != file_rdev)) {
-#ifdef DEBUG
-		printf("Bogus entry in %s!  (%s not mounted on %s)\n",
-		       mtab_file, file, mnt->mnt_dir);
-#endif /* DEBUG */
-		goto errout;
-	}
-#endif /* __GNU__ */
-	*mount_flags = MF_MOUNTED;
-
-#ifdef MNTOPT_RO
-	/* Check to see if the ro option is set */
-	if (hasmntopt(mnt, MNTOPT_RO))
-		*mount_flags |= MF_READONLY;
-#endif
-
-	if (mtpt)
-		strncpy(mtpt, mnt->mnt_dir, mtlen);
-	/*
-	 * Check to see if we're referring to the root filesystem.
-	 * If so, do a manual check to see if we can open /etc/mtab
-	 * read/write, since if the root is mounted read/only, the
-	 * contents of /etc/mtab may not be accurate.
-	 */
-	if (!strcmp(mnt->mnt_dir, "/")) {
-is_root:
-#define TEST_FILE "/.ismount-test-file"
-		*mount_flags |= MF_ISROOT;
-		fd = open(TEST_FILE, O_RDWR|O_CREAT, 0600);
-		if (fd < 0) {
-			if (errno == EROFS)
-				*mount_flags |= MF_READONLY;
-		} else
-			close(fd);
-		(void) unlink(TEST_FILE);
-	}
-	retval = 0;
-errout:
-	endmntent (f);
-	return retval;
-}
-
-static int check_mntent(const char *file, int *mount_flags,
-			      char *mtpt, int mtlen)
-{
-	int	retval;
-
-#ifdef DEBUG
-	retval = check_mntent_file("/tmp/mtab", file, mount_flags,
-				   mtpt, mtlen);
-	if (retval == 0)
-		return 0;
-#endif /* DEBUG */
-#ifdef __linux__
-	retval = check_mntent_file("/proc/mounts", file, mount_flags,
-				   mtpt, mtlen);
-	if (retval == 0 && (*mount_flags != 0))
-		return 0;
-	if (access("/proc/mounts", R_OK) == 0) {
-		*mount_flags = 0;
-		return retval;
-	}
-#endif /* __linux__ */
-#if defined(MOUNTED) || defined(_PATH_MOUNTED)
-#ifndef MOUNTED
-#define MOUNTED _PATH_MOUNTED
-#endif /* MOUNTED */
-	retval = check_mntent_file(MOUNTED, file, mount_flags, mtpt, mtlen);
-	return retval;
-#else
-	*mount_flags = 0;
-	return 0;
-#endif /* defined(MOUNTED) || defined(_PATH_MOUNTED) */
-}
-
-#else
-#if defined(HAVE_GETMNTINFO)
-
-static int check_getmntinfo(const char *file, int *mount_flags,
-				  char *mtpt, int mtlen)
-{
-	struct statfs *mp;
-        int    len, n;
-        const  char   *s1;
-	char	*s2;
-
-        n = getmntinfo(&mp, MNT_NOWAIT);
-        if (n == 0)
-		return errno;
-
-        len = sizeof(_PATH_DEV) - 1;
-        s1 = file;
-        if (strncmp(_PATH_DEV, s1, len) == 0)
-                s1 += len;
-
-	*mount_flags = 0;
-        while (--n >= 0) {
-                s2 = mp->f_mntfromname;
-                if (strncmp(_PATH_DEV, s2, len) == 0) {
-                        s2 += len - 1;
-                        *s2 = 'r';
-                }
-                if (strcmp(s1, s2) == 0 || strcmp(s1, &s2[1]) == 0) {
-			*mount_flags = MF_MOUNTED;
-			break;
-		}
-                ++mp;
-	}
-	if (mtpt)
-		strncpy(mtpt, mp->f_mntonname, mtlen);
-	return 0;
-}
-#endif /* HAVE_GETMNTINFO */
-#endif /* HAVE_MNTENT_H */
-
-/*
- * Check to see if we're dealing with the swap device.
- */
-static int is_swap_device(const char *file)
-{
-	FILE		*f;
-	char		buf[1024], *cp;
-	dev_t		file_dev;
-	struct stat	st_buf;
-	int		ret = 0;
-
-	file_dev = 0;
-#ifndef __GNU__ /* The GNU hurd is broken with respect to stat devices */
-	if ((stat(file, &st_buf) == 0) &&
-	    S_ISBLK(st_buf.st_mode))
-		file_dev = st_buf.st_rdev;
-#endif	/* __GNU__ */
-
-	if (!(f = fopen("/proc/swaps", "r")))
-		return 0;
-	/* Skip the first line */
-	if (!fgets(buf, sizeof(buf), f))
-		goto leave;
-	if (*buf && strncmp(buf, "Filename\t", 9))
-		/* Linux <=2.6.19 contained a bug in the /proc/swaps
-		 * code where the header would not be displayed
-		 */
-		goto valid_first_line;
-
-	while (fgets(buf, sizeof(buf), f)) {
-valid_first_line:
-		if ((cp = strchr(buf, ' ')) != NULL)
-			*cp = 0;
-		if ((cp = strchr(buf, '\t')) != NULL)
-			*cp = 0;
-		if (strcmp(buf, file) == 0) {
-			ret++;
-			break;
-		}
-#ifndef __GNU__
-		if (file_dev && (stat(buf, &st_buf) == 0) &&
-		    S_ISBLK(st_buf.st_mode) &&
-		    file_dev == st_buf.st_rdev) {
-			ret++;
-			break;
-		}
-#endif	/* __GNU__ */
-	}
-
-leave:
-	fclose(f);
-	return ret;
-}
-
-
-/*
- * check_mount_point() fills determines if the device is mounted or otherwise
- * busy, and fills in mount_flags with one or more of the following flags:
- * MF_MOUNTED, MF_ISROOT, MF_READONLY, MF_SWAP, and MF_BUSY.  If mtpt is
- * non-NULL, the directory where the device is mounted is copied to where mtpt
- * is pointing, up to mtlen characters.
- */
-#ifdef __TURBOC__
- #pragma argsused
-#endif
-int check_mount_point(const char *device, int *mount_flags,
-				  char *mtpt, int mtlen)
-{
-	struct stat	st_buf;
-	int	retval = 0;
-	int		fd;
-
-	if (is_swap_device(device)) {
-		*mount_flags = MF_MOUNTED | MF_SWAP;
-		strncpy(mtpt, "<swap>", mtlen);
-	} else {
-#ifdef HAVE_MNTENT_H
-		retval = check_mntent(device, mount_flags, mtpt, mtlen);
-#else
-#ifdef HAVE_GETMNTINFO
-		retval = check_getmntinfo(device, mount_flags, mtpt, mtlen);
-#else
-#ifdef __GNUC__
- #warning "Can't use getmntent or getmntinfo to check for mounted filesystems!"
-#endif
-		*mount_flags = 0;
-#endif /* HAVE_GETMNTINFO */
-#endif /* HAVE_MNTENT_H */
-	}
-	if (retval)
-		return retval;
-
-#ifdef __linux__ /* This only works on Linux 2.6+ systems */
-	if ((stat(device, &st_buf) != 0) ||
-	    !S_ISBLK(st_buf.st_mode))
-		return 0;
-	fd = open(device, O_RDONLY | O_EXCL);
-	if (fd < 0) {
-		if (errno == EBUSY)
-			*mount_flags |= MF_BUSY;
-	} else
-		close(fd);
-#endif
-
-	return 0;
-}
-
-int is_mounted(const char *file)
-{
-	int	retval;
-	int	mount_flags = 0;
-
-	retval = check_mount_point(file, &mount_flags, NULL, 0);
-	if (retval)
-		return 0;
-	return mount_flags & MF_MOUNTED;
-}
-
-#ifdef TEST_PROGRAM
-int main(int argc, char **argv)
-{
-	int flags = 0;
-	char devname[PATH_MAX];
-
-	if (argc < 2) {
-		fprintf(stderr, "Usage: %s device\n", argv[0]);
-		return EXIT_FAILURE;
-	}
-
-	if (check_mount_point(argv[1], &flags, devname, sizeof(devname)) == 0 &&
-	    (flags & MF_MOUNTED)) {
-		if (flags & MF_SWAP)
-			printf("used swap device\n");
-		else
-			printf("mounted on %s\n", devname);
-		return EXIT_SUCCESS;
-	}
-
-	printf("not mounted\n");
-	return EXIT_FAILURE;
-}
-#endif /* DEBUG */