Don't override arguments set via options with positional arguments.

A number of utility programs were rather careless about paremeters
that can be set via both an option argument and a positional
argument. This leads to results which can violate the Principal
Of Least Astonishment. These changes refuse to use positional
arguments to override settings that have been made via positional
arguments. The changes are backpatched to all live branches.

1 files changed, 15 insertions, 11 deletions

diff --git a/src/bin/scripts/clusterdb.c b/src/bin/scripts/clusterdb.c
index b01f91c1d6e..0f711e870b3 100644
--- a/src/bin/scripts/clusterdb.c
+++ b/src/bin/scripts/clusterdb.c
@@ -112,18 +112,22 @@ main(int argc, char *argv[])
 		}
 	}
 
-	switch (argc - optind)
+	/* 
+	 * Non-option argument specifies database name
+	 * as long as it wasn't already specified with -d / --dbname
+	 */
+	if (optind < argc && dbname == NULL)
 	{
-		case 0:
-			break;
-		case 1:
-			dbname = argv[optind];
-			break;
-		default:
-			fprintf(stderr, _("%s: too many command-line arguments (first is \"%s\")\n"),
-					progname, argv[optind + 1]);
-			fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
-			exit(1);
+		dbname = argv[optind];
+		optind++;
+	}
+
+	if (optind < argc)
+	{
+		fprintf(stderr, _("%s: too many command-line arguments (first is \"%s\")\n"),
+				progname, argv[optind + 1]);
+		fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
+		exit(1);
 	}
 
 	setup_cancel_handler();