This patch, put together by Manuel Novoa III, is a merge of work

done by Evin Robertson (bug#1105) and work from Manuel to make
usage messages occupy less space and simplify how usage messages
are displayed.

12 files changed, 20 insertions, 35 deletions

diff --git a/util-linux/dmesg.c b/util-linux/dmesg.c
index c21f84c..47f9f44 100644
--- a/util-linux/dmesg.c
+++ b/util-linux/dmesg.c
@@ -53,21 +53,21 @@ int dmesg_main(int argc, char **argv)
 		case 'n':
 			cmd = 8;
 			if (optarg == NULL)
-				usage(dmesg_usage);
+				show_usage();
 			level = atoi(optarg);
 			break;
 		case 's':
 			if (optarg == NULL)
-				usage(dmesg_usage);
+				show_usage();
 			bufsize = atoi(optarg);
 			break;
 		default:
-			usage(dmesg_usage);
+			show_usage();
 		}
 	}			
 
 	if (optind < argc) {
-		goto end;
+		show_usage();
 	}
 
 	if (cmd == 8) {
@@ -97,7 +97,4 @@ int dmesg_main(int argc, char **argv)
 	if (lastc != '\n')
 		putchar('\n');
 	return EXIT_SUCCESS;
-  end:
-	usage(dmesg_usage);
-	return EXIT_FAILURE;
 }
diff --git a/util-linux/fdflush.c b/util-linux/fdflush.c
index fcf8ddd..f10ccea 100644
--- a/util-linux/fdflush.c
+++ b/util-linux/fdflush.c
@@ -35,7 +35,7 @@ extern int fdflush_main(int argc, char **argv)
 	int fd;
 
 	if (argc <= 1 || **(++argv) == '-')
-		usage(fdflush_usage);
+		show_usage();
 
 	if ((fd = open(*argv, 0)) < 0)
 		perror_msg_and_die("%s", *argv);
diff --git a/util-linux/freeramdisk.c b/util-linux/freeramdisk.c
index 8f90f40..cf25fae 100644
--- a/util-linux/freeramdisk.c
+++ b/util-linux/freeramdisk.c
@@ -40,7 +40,7 @@ freeramdisk_main(int argc, char **argv)
 	int   f;
 
 	if (argc != 2 || *argv[1] == '-') {
-		usage(freeramdisk_usage);
+		show_usage();
 	}
 
 	if ((f = open(argv[1], O_RDWR)) == -1) {
diff --git a/util-linux/fsck_minix.c b/util-linux/fsck_minix.c
index 9d76220..2b4c651 100644
--- a/util-linux/fsck_minix.c
+++ b/util-linux/fsck_minix.c
@@ -283,11 +283,6 @@ static void leave(int status)
 	exit(status);
 }
 
-static void show_usage(void)
-{
-	usage(fsck_minix_usage);
-}
-
 static void die(const char *str)
 {
 	error_msg("%s", str);
diff --git a/util-linux/getopt.c b/util-linux/getopt.c
index 6252631..eb28d5d 100644
--- a/util-linux/getopt.c
+++ b/util-linux/getopt.c
@@ -372,7 +372,7 @@ int getopt_main(int argc, char *argv[])
                         quote=0;
                         break;
                 default:
-                        usage(getopt_usage);
+                        show_usage();
                 }
 
         if (!optstr) {
diff --git a/util-linux/mkfs_minix.c b/util-linux/mkfs_minix.c
index 9b40faa..6b4a3e2 100644
--- a/util-linux/mkfs_minix.c
+++ b/util-linux/mkfs_minix.c
@@ -255,13 +255,6 @@ static inline int bit(char * a,unsigned int i)
 #define mark_zone(x) (setbit(zone_map,(x)-FIRSTZONE+1))
 #define unmark_zone(x) (clrbit(zone_map,(x)-FIRSTZONE+1))
 
-static void show_usage() __attribute__ ((noreturn)); 
-
-static void show_usage()
-{
-	usage(mkfs_minix_usage);
-}
-
 /*
  * Check to make certain that our new filesystem won't be created on
  * an already mounted partition.  Code adapted from mke2fs, Copyright
diff --git a/util-linux/mkswap.c b/util-linux/mkswap.c
index 7d690ad..48637e8 100644
--- a/util-linux/mkswap.c
+++ b/util-linux/mkswap.c
@@ -287,7 +287,7 @@ int mkswap_main(int argc, char **argv)
 
 				PAGES = strtol(argv[0], &tmp, 0) / blocks_per_page;
 				if (*tmp)
-					usage(mkswap_usage);
+					show_usage();
 			} else
 				device_name = argv[0];
 		} else {
@@ -302,13 +302,13 @@ int mkswap_main(int argc, char **argv)
 				version = atoi(argv[0] + 2);
 				break;
 			default:
-				usage(mkswap_usage);
+				show_usage();
 			}
 		}
 	}
 	if (!device_name) {
 		error_msg("error: Nowhere to set up swap on?");
-		usage(mkswap_usage);
+		show_usage();
 	}
 	sz = get_size(device_name);
 	if (!PAGES) {
@@ -331,12 +331,12 @@ int mkswap_main(int argc, char **argv)
 	}
 	if (version != 0 && version != 1) {
 		error_msg("error: unknown version %d", version);
-		usage(mkswap_usage);
+		show_usage();
 	}
 	if (PAGES < 10) {
 		error_msg("error: swap area needs to be at least %ldkB",
 				(long) (10 * pagesize / 1024));
-		usage(mkswap_usage);
+		show_usage();
 	}
 #if 0
 	maxpages = ((version == 0) ? V0_MAX_PAGES : V1_MAX_PAGES);
diff --git a/util-linux/mount.c b/util-linux/mount.c
index 79813ba..2f5bba5 100644
--- a/util-linux/mount.c
+++ b/util-linux/mount.c
@@ -505,5 +505,5 @@ singlemount:
 	goto singlemount;
 	
 goodbye:
-	usage(mount_usage);
+	show_usage();
 }
diff --git a/util-linux/pivot_root.c b/util-linux/pivot_root.c
index 92fe4ae..e007101 100644
--- a/util-linux/pivot_root.c
+++ b/util-linux/pivot_root.c
@@ -20,7 +20,7 @@ static _syscall2(int,pivot_root,const char *,new_root,const char *,put_old)
 int pivot_root_main(int argc, char **argv)
 {
     if (argc != 3)
-        usage(pivot_root_usage);
+        show_usage();
 
     if (pivot_root(argv[1],argv[2]) < 0)
         perror_msg_and_die("pivot_root");
diff --git a/util-linux/rdate.c b/util-linux/rdate.c
index d350be8..38a7689 100644
--- a/util-linux/rdate.c
+++ b/util-linux/rdate.c
@@ -95,14 +95,14 @@ int rdate_main(int argc, char **argv)
 	/* Interpret command line args */
 	/* do special-case option parsing */
 	if (argv[1] && (strcmp(argv[1], "--help") == 0))
-		usage(rdate_usage);
+		show_usage();
 
 	/* do normal option parsing */
 	while ((opt = getopt(argc, argv, "Hsp")) > 0) {
 		switch (opt) {
 			default:
 			case 'H':
-				usage(rdate_usage);
+				show_usage();
 				break;
 			case 's':
 				setdate++;
@@ -117,7 +117,7 @@ int rdate_main(int argc, char **argv)
 	if (printdate==0 && setdate==0) setdate++;
 
 	if (optind == argc) {
-		usage(rdate_usage);
+		show_usage();
 	}
 
 	if ((time= askremotedate(argv[optind])) == (time_t)-1) {
diff --git a/util-linux/swaponoff.c b/util-linux/swaponoff.c
index 74f6ec3..8dda097 100644
--- a/util-linux/swaponoff.c
+++ b/util-linux/swaponoff.c
@@ -107,5 +107,5 @@ extern int swap_on_off_main(int argc, char **argv)
 	return EXIT_SUCCESS;
 
   usage_and_exit:
-	usage((whichApp == SWAPON_APP) ? swapon_usage : swapoff_usage);
+	show_usage();
 }
diff --git a/util-linux/umount.c b/util-linux/umount.c
index 39842d2..c160ec2 100644
--- a/util-linux/umount.c
+++ b/util-linux/umount.c
@@ -235,7 +235,7 @@ static int umount_all(int useMtab)
 extern int umount_main(int argc, char **argv)
 {
 	if (argc < 2) {
-		usage(umount_usage);
+		show_usage();
 	}
 #ifdef BB_FEATURE_CLEAN_UP
 	atexit(mtab_free);
@@ -269,7 +269,7 @@ extern int umount_main(int argc, char **argv)
 			case 'v':
 				break; /* ignore -v */
 			default:
-				usage(umount_usage);
+				show_usage();
 			}
 	}