s3:mount.cifs: make "mount.cifs -V" print the version, not usage.

(cherry-picked from d7ca4997017e86b6f23ced64f1f1672bfb15716b)

Also make "mount.cifs -h" not exit with error exit code but with return code 0.

Michael

Part 2/2 of a fix for bug #6692 (mount.cifs segfault).
(cherry picked from commit d41131948346619be98514331d7059d9bffecac5)

1 files changed, 28 insertions, 5 deletions

diff --git a/source/client/mount.cifs.c b/source/client/mount.cifs.c
index bb40a8cfc3a..0add7a8d39e 100644
--- a/source/client/mount.cifs.c
+++ b/source/client/mount.cifs.c
@@ -1036,6 +1036,14 @@ uppercase_string(char *string)
 	return 1;
 }
 
+static void print_cifs_mount_version(void)
+{
+	printf("mount.cifs version: %s.%s%s\n",
+		MOUNT_CIFS_VERSION_MAJOR,
+		MOUNT_CIFS_VERSION_MINOR,
+		MOUNT_CIFS_VENDOR_SUFFIX);
+}
+
 int main(int argc, char ** argv)
 {
 	int c;
@@ -1097,6 +1105,24 @@ int main(int argc, char ** argv)
 			exit(EX_SYSERR);
 		}
 		mountpoint = argv[2];
+	} else if (argc == 2) {
+		if ((strcmp(argv[1], "-V") == 0) ||
+		    (strcmp(argv[1], "--version") == 0))
+		{
+			print_cifs_mount_version();
+			exit(0);
+		}
+
+		if ((strcmp(argv[1], "-h") == 0) ||
+		    (strcmp(argv[1], "-?") == 0) ||
+		    (strcmp(argv[1], "--help") == 0))
+		{
+			mount_cifs_usage();
+			exit(0);
+		}
+
+		mount_cifs_usage();
+		exit(EX_USAGE);
 	} else {
 		mount_cifs_usage();
 		exit(EX_USAGE);
@@ -1153,11 +1179,8 @@ int main(int argc, char ** argv)
 		case 'v':
 			++verboseflag;
 			break;
-		case 'V':	   
-			printf ("mount.cifs version: %s.%s%s\n",
-			MOUNT_CIFS_VERSION_MAJOR,
-			MOUNT_CIFS_VERSION_MINOR,
-			MOUNT_CIFS_VENDOR_SUFFIX);
+		case 'V':
+			print_cifs_mount_version();
 			exit (0);
 		case 'w':
 			flags &= ~MS_RDONLY;