X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;f=cmd%2Fzdb%2Fzdb.c;h=4a36732ff4f2d0716bb8b4b10362f3901f686247;hb=d13524579162b35189804c357a63993be758b84c;hp=d0354809d33196927842c8385c94c0981253f34e;hpb=d603ed6c278f9c25b17ba8e75e9bce6e5d715ac0;p=zfs.git

diff --git a/cmd/zdb/zdb.c b/cmd/zdb/zdb.c
index d035480..4a36732 100644
--- a/cmd/zdb/zdb.c
+++ b/cmd/zdb/zdb.c
@@ -101,13 +101,16 @@ static void
 usage(void)
 {
 	(void) fprintf(stderr,
-	    "Usage: %s [-CumdibcsDvhL] poolname [object...]\n"
-	    "       %s [-div] dataset [object...]\n"
-	    "       %s -m [-L] poolname [vdev [metaslab...]]\n"
-	    "       %s -R poolname vdev:offset:size[:flags]\n"
-	    "       %s -S poolname\n"
-	    "       %s -l [-u] device\n"
-	    "       %s -C\n\n",
+	    "Usage: %s [-CumdibcsDvhLXFPA] [-t txg] [-e [-p path...]] "
+	    "poolname [object...]\n"
+	    "       %s [-divPA] [-e -p path...] dataset [object...]\n"
+	    "       %s -m [-LXFPA] [-t txg] [-e [-p path...]] "
+	    "poolname [vdev [metaslab...]]\n"
+	    "       %s -R [-A] [-e [-p path...]] poolname "
+	    "vdev:offset:size[:flags]\n"
+	    "       %s -S [-PA] [-e [-p path...]] poolname\n"
+	    "       %s -l [-uA] device\n"
+	    "       %s -C [-A] [-U config]\n\n",
 	    cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname);
 
 	(void) fprintf(stderr, "    Dataset name must include at least one "
@@ -149,7 +152,7 @@ usage(void)
 	    "has altroot/not in a cachefile\n");
 	(void) fprintf(stderr, "        -p <path> -- use one or more with "
 	    "-e to specify path to vdev dir\n");
-	(void) fprintf(stderr, "	-P print numbers parsable\n");
+	(void) fprintf(stderr, "        -P print numbers in parseable form\n");
 	(void) fprintf(stderr, "        -t <txg> -- highest txg to use when "
 	    "searching for uberblocks\n");
 	(void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
@@ -1803,7 +1806,7 @@ dump_label(const char *dev)
 		exit(1);
 	}
 
-	if (fstat64(fd, &statbuf) != 0) {
+	if (fstat64_blk(fd, &statbuf) != 0) {
 		(void) printf("failed to stat '%s': %s\n", path,
 		    strerror(errno));
 		free(path);
@@ -1811,14 +1814,6 @@ dump_label(const char *dev)
 		exit(1);
 	}
 
-	if (S_ISBLK(statbuf.st_mode)) {
-		(void) printf("cannot use '%s': character device required\n",
-		    path);
-		free(path);
-		(void) close(fd);
-		exit(1);
-	}
-
 	psize = statbuf.st_size;
 	psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
 
@@ -3036,8 +3031,8 @@ main(int argc, char **argv)
 	}
 
 	kernel_init(FREAD);
-	g_zfs = libzfs_init();
-	ASSERT(g_zfs != NULL);
+	if ((g_zfs = libzfs_init()) == NULL)
+		return (1);
 
 	if (dump_all)
 		verbose = MAX(verbose, 1);