From e66cf821cf1e4bd8c1ef28445c0559269f69bab9 Mon Sep 17 00:00:00 2001
From: Denys Vlasenko <vda.linux@googlemail.com>
Date: Tue, 18 May 2010 09:12:53 +0200
Subject: [PATCH] ash,hush: make bare "." set exitcode to 2

function                                             old     new   delta
dotcmd                                               300     305      +5
builtin_source                                       176     171      -5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
---
 shell/ash.c  | 45 +++++++++++++++++++++++++--------------------
 shell/hush.c | 23 ++++++++++++++---------
 2 files changed, 39 insertions(+), 29 deletions(-)

diff --git a/shell/ash.c b/shell/ash.c
index ea813e02f..641a14035 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -12031,37 +12031,42 @@ find_dot_file(char *name)
 static int FAST_FUNC
 dotcmd(int argc, char **argv)
 {
+	char *fullname;
 	struct strlist *sp;
 	volatile struct shparam saveparam;
 
 	for (sp = cmdenviron; sp; sp = sp->next)
 		setvareq(ckstrdup(sp->text), VSTRFIXED | VTEXTFIXED);
 
+	if (!argv[1]) {
+		/* bash says: "bash: .: filename argument required" */
+		return 2; /* bash compat */
+	}
+
 	/* "false; . empty_file; echo $?" should print 0, not 1: */
 	exitstatus = 0;
 
-	if (argv[1]) {        /* That's what SVR2 does */
-		char *fullname = find_dot_file(argv[1]);
+	fullname = find_dot_file(argv[1]);
 
-		argv += 2;
-		argc -= 2;
-		if (argc) { /* argc > 0, argv[0] != NULL */
-			saveparam = shellparam;
-			shellparam.malloced = 0;
-			shellparam.nparam = argc;
-			shellparam.p = argv;
-		};
-
-		setinputfile(fullname, INPUT_PUSH_FILE);
-		commandname = fullname;
-		cmdloop(0);
-		popfile();
+	argv += 2;
+	argc -= 2;
+	if (argc) { /* argc > 0, argv[0] != NULL */
+		saveparam = shellparam;
+		shellparam.malloced = 0;
+		shellparam.nparam = argc;
+		shellparam.p = argv;
+	};
+
+	setinputfile(fullname, INPUT_PUSH_FILE);
+	commandname = fullname;
+	cmdloop(0);
+	popfile();
+
+	if (argc) {
+		freeparam(&shellparam);
+		shellparam = saveparam;
+	};
 
-		if (argc) {
-			freeparam(&shellparam);
-			shellparam = saveparam;
-		};
-	}
 	return exitstatus;
 }
 
diff --git a/shell/hush.c b/shell/hush.c
index e6c083f55..8baccf246 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -7870,21 +7870,26 @@ static int FAST_FUNC builtin_shift(char **argv)
 
 static int FAST_FUNC builtin_source(char **argv)
 {
-	char *arg_path;
+	char *arg_path, *filename;
 	FILE *input;
 	save_arg_t sv;
 #if ENABLE_HUSH_FUNCTIONS
 	smallint sv_flg;
 #endif
 
-	if (*++argv == NULL)
-		return EXIT_FAILURE;
-
-	if (strchr(*argv, '/') == NULL && (arg_path = find_in_path(*argv)) != NULL) {
-		input = fopen_for_read(arg_path);
-		free(arg_path);
-	} else
-		input = fopen_or_warn(*argv, "r");
+	arg_path = NULL;
+	filename = *++argv;
+	if (!filename) {
+		/* bash says: "bash: .: filename argument required" */
+		return 2; /* bash compat */
+	}
+	if (!strchr(filename, '/')) {
+		arg_path = find_in_path(filename);
+		if (arg_path)
+			filename = arg_path;
+	}
+	input = fopen_or_warn(filename, "r");
+	free(arg_path);
 	if (!input) {
 		/* bb_perror_msg("%s", *argv); - done by fopen_or_warn */
 		return EXIT_FAILURE;
-- 
2.25.1