Use the correct file pointer when reading the group id map file. The old

code tried to read the group id map from the user id file, and thus would
never actually allow a umapfs to be mounted.  (!)

1 files changed, 8 insertions, 5 deletions

diff --git a/sbin/mount_umap/mount_umap.c b/sbin/mount_umap/mount_umap.c
index c7e31c6..f8e229b 100644
--- a/sbin/mount_umap/mount_umap.c
+++ b/sbin/mount_umap/mount_umap.c
@@ -190,7 +190,7 @@ main(argc, argv)
 		errx(1, "%s does not belong to root%s", gmapfile, not);
 #endif /* MAPSECURITY */
 
-	if ((fscanf(fp, "%d\n", &gnentries)) != 1)
+	if ((fscanf(gfp, "%d\n", &gnentries)) != 1)
 		errx(1, "nentries not found%s", gmapfile, not);
 	if (gnentries > MAPFILEENTRIES)
 		errx(1,
@@ -200,11 +200,11 @@ main(argc, argv)
 #endif
 
 	for (count = 0; count < gnentries; ++count)
-		if ((fscanf(fp, "%lu %lu\n",
+		if ((fscanf(gfp, "%lu %lu\n",
 		    &(gmapdata[count][0]), &(gmapdata[count][1]))) != 2) {
-			if (ferror(fp))
+			if (ferror(gfp))
 				err(1, "%s%s", gmapfile, not);
-			if (feof(fp))
+			if (feof(gfp))
 				errx(1, "%s: unexpected end-of-file%s",
 				    gmapfile, not);
 			errx(1, "%s: illegal format (line %d)%s",
@@ -226,8 +226,11 @@ main(argc, argv)
 		endvfsent();	/* flush cache */
 		vfc = getvfsbyname("umap");
 	}
+	if (!vfc) {
+		errx(1, "umap filesystem not available");
+	}
 
-	if (mount(vfc ? vfc->vfc_index : MOUNT_UMAP, argv[1], mntflags, &args))
+	if (mount(vfc->vfc_index, argv[1], mntflags, &args))
 		err(1, NULL);
 	exit(0);
 }