1 files changed, 0 insertions, 138 deletions
diff --git a/libblkid/dm.c b/libblkid/dm.c
deleted file mode 100644
index 72ec9bd8e..000000000
--- a/libblkid/dm.c
+++ /dev/null
@@ -1,138 +0,0 @@
-/*
- * device-mapper (dm) topology
- * -- this is fallback for old systems where the topology information is not
- *    exported by sysfs
- *
- * Copyright (C) 2009 Karel Zak <kzak@redhat.com>
- *
- * This file may be redistributed under the terms of the
- * GNU Lesser General Public License.
- *
- */
-#include <errno.h>
-#include <fcntl.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include "topology.h"
-
-static int is_dm_device(dev_t devno)
-{
-	return blkid_driver_has_major("device-mapper", major(devno));
-}
-
-static int probe_dm_tp(blkid_probe pr,
-		const struct blkid_idmag *mag __attribute__((__unused__)))
-{
-	const char *paths[] = {
-		"/usr/local/sbin/dmsetup",
-		"/usr/sbin/dmsetup",
-		"/sbin/dmsetup"
-	};
-	int dmpipe[] = { -1, -1 }, stripes, stripesize;
-	char *cmd = NULL;
-	FILE *stream = NULL;
-	long long  offset, size;
-	size_t i;
-	dev_t devno = blkid_probe_get_devno(pr);
-
-	if (!devno)
-		goto nothing;		/* probably not a block device */
-	if (!is_dm_device(devno))
-		goto nothing;
-
-	for (i = 0; i < ARRAY_SIZE(paths); i++) {
-		struct stat sb;
-		if (stat(paths[i], &sb) == 0) {
-			cmd = (char *) paths[i];
-			break;
-		}
-	}
-
-	if (!cmd)
-		goto nothing;
-	if (pipe(dmpipe) < 0) {
-		DBG(DEBUG_LOWPROBE,
-			printf("Failed to open pipe: errno=%d", errno));
-		goto nothing;
-	}
-
-	switch (fork()) {
-	case 0:
-	{
-		char *dmargv[7], maj[16], min[16];
-
-		/* Plumbing */
-		close(dmpipe[0]);
-
-		if (dmpipe[1] != STDOUT_FILENO)
-			dup2(dmpipe[1], STDOUT_FILENO);
-
-		/* The libblkid library could linked with setuid programs */
-		if (setgid(getgid()) < 0)
-			 exit(1);
-		if (setuid(getuid()) < 0)
-			 exit(1);
-
-		snprintf(maj, sizeof(maj), "%d", major(devno));
-		snprintf(min, sizeof(min), "%d", minor(devno));
-
-		dmargv[0] = cmd;
-		dmargv[1] = "table";
-		dmargv[2] = "-j";
-		dmargv[3] = maj;
-		dmargv[4] = "-m";
-		dmargv[5] = min;
-		dmargv[6] = NULL;
-
-		execv(dmargv[0], dmargv);
-
-		DBG(DEBUG_LOWPROBE,
-			printf("Failed to execute %s: errno=%d", cmd, errno));
-		exit(1);
-	}
-	case -1:
-		DBG(DEBUG_LOWPROBE,
-			printf("Failed to forking: errno=%d", errno));
-		goto nothing;
-	default:
-		break;
-	}
-
-	stream = fdopen(dmpipe[0], "r");
-	if (!stream)
-		goto nothing;
-
-	if (fscanf(stream, "%lld %lld striped %d %d ",
-			&offset, &size, &stripes, &stripesize) != 0)
-		goto nothing;
-
-	blkid_topology_set_minimum_io_size(pr, stripesize << 9);
-	blkid_topology_set_optimal_io_size(pr, (stripes * stripesize) << 9);
-
-	fclose(stream);
-	close(dmpipe[1]);
-	return 0;
-
-nothing:
-	if (stream)
-		fclose(stream);
-	else if (dmpipe[0] != -1)
-		close(dmpipe[0]);
-	if (dmpipe[1] != -1)
-		close(dmpipe[1]);
-	return 1;
-}
-
-const struct blkid_idinfo dm_tp_idinfo =
-{
-	.name		= "dm",
-	.probefunc	= probe_dm_tp,
-	.magics		= BLKID_NONE_MAGIC
-};
-