include/c: add print_version() macro

Let's consolidate the version printing code. It also seems better to
use exit() after --version, because it's handled in different way by
ASAN.

It's strange, but ASAN reports leaks after return in main(). Note that
we do not use free-before-exit.

Signed-off-by: Karel Zak <kzak@redhat.com>

5 files changed, 11 insertions, 28 deletions

diff --git a/disk-utils/mkfs.bfs.c b/disk-utils/mkfs.bfs.c
index 5bf8fdfd8..77f253f1e 100644
--- a/disk-utils/mkfs.bfs.c
+++ b/disk-utils/mkfs.bfs.c
@@ -91,12 +91,6 @@ static void __attribute__((__noreturn__)) usage(void)
 	exit(EXIT_SUCCESS);
 }
 
-static void __attribute__ ((__noreturn__)) print_version(void)
-{
-	printf(UTIL_LINUX_VERSION);
-	exit(EXIT_SUCCESS);
-}
-
 int main(int argc, char **argv)
 {
 	char *device, *volume, *fsname;
@@ -134,7 +128,7 @@ int main(int argc, char **argv)
 		errtryhelp(EXIT_FAILURE);
 	}
 	if (argc == 2 && !strcmp(argv[1], "-V"))
-		print_version();
+		print_version(EXIT_SUCCESS);
 
 	volume = fsname = "      ";	/* is there a default? */
 	inodes = 0;
@@ -169,7 +163,7 @@ int main(int argc, char **argv)
 			break;
 
 		case VERSION_OPTION:
-			print_version();
+			print_version(EXIT_SUCCESS);
 		case 'h':
 			usage();
 		default:
diff --git a/disk-utils/mkfs.c b/disk-utils/mkfs.c
index 5bcd9613c..fbd575e7e 100644
--- a/disk-utils/mkfs.c
+++ b/disk-utils/mkfs.c
@@ -61,12 +61,6 @@ static void __attribute__((__noreturn__)) usage(void)
 	exit(EXIT_SUCCESS);
 }
 
-static void __attribute__ ((__noreturn__)) print_version(void)
-{
-	printf(UTIL_LINUX_VERSION);
-	exit(EXIT_SUCCESS);
-}
-
 int main(int argc, char **argv)
 {
 	char *progname;		/* name of executable to be called */
@@ -89,7 +83,7 @@ int main(int argc, char **argv)
 	atexit(close_stdout);
 
 	if (argc == 2 && !strcmp(argv[1], "-V"))
-		print_version();
+		print_version(EXIT_SUCCESS);
 
 	/* Check commandline options. */
 	opterr = 0;
@@ -106,7 +100,7 @@ int main(int argc, char **argv)
 		case 'h':
 			usage();
 		case VERSION_OPTION:
-			print_version();
+			print_version(EXIT_SUCCESS);
 		default:
 			optind--;
 			more = 1;
diff --git a/misc-utils/blkid.c b/misc-utils/blkid.c
index e94edfcf2..c03e1bb8d 100644
--- a/misc-utils/blkid.c
+++ b/misc-utils/blkid.c
@@ -62,13 +62,6 @@ struct blkid_control {
 		raw_chars:1;
 };
 
-static void print_version(FILE *out)
-{
-	fprintf(out, _("%s from %s  (libblkid %s, %s)\n"),
-		program_invocation_short_name, PACKAGE_STRING,
-		LIBBLKID_VERSION, LIBBLKID_DATE);
-}
-
 static void __attribute__((__noreturn__)) usage(void)
 {
 	FILE *out = stdout;
@@ -793,7 +786,9 @@ int main(int argc, char **argv)
 			break;
 		case 'V':
 		case 'v':
-			print_version(stdout);
+			fprintf(stdout, _("%s from %s  (libblkid %s, %s)\n"),
+				program_invocation_short_name, PACKAGE_STRING,
+				LIBBLKID_VERSION, LIBBLKID_DATE);
 			err = 0;
 			goto exit;
 		case 'w':
diff --git a/sys-utils/mount.c b/sys-utils/mount.c
index b91d4779a..b1b43251e 100644
--- a/sys-utils/mount.c
+++ b/sys-utils/mount.c
@@ -73,7 +73,7 @@ static void __attribute__((__noreturn__)) exit_non_root(const char *option)
 	errx(MNT_EX_USAGE, _("only root can do that"));
 }
 
-static void __attribute__((__noreturn__)) print_version(void)
+static void __attribute__((__noreturn__)) mount_print_version(void)
 {
 	const char *ver = NULL;
 	const char **features = NULL, **p;
@@ -708,7 +708,7 @@ int main(int argc, char **argv)
 			mnt_context_enable_verbose(cxt, TRUE);
 			break;
 		case 'V':
-			print_version();
+			mount_print_version();
 			break;
 		case 'w':
 			append_option(cxt, "rw");
diff --git a/sys-utils/umount.c b/sys-utils/umount.c
index b021088d2..929da8d91 100644
--- a/sys-utils/umount.c
+++ b/sys-utils/umount.c
@@ -53,7 +53,7 @@ static int table_parser_errcb(struct libmnt_table *tb __attribute__((__unused__)
 }
 
 
-static void __attribute__((__noreturn__)) print_version(void)
+static void __attribute__((__noreturn__)) umount_print_version(void)
 {
 	const char *ver = NULL;
 	const char **features = NULL, **p;
@@ -549,7 +549,7 @@ int main(int argc, char **argv)
 			mnt_context_enable_verbose(cxt, TRUE);
 			break;
 		case 'V':
-			print_version();
+			umount_print_version();
 			break;
 		case 'N':
 		{