Module Name:    src
Committed By:   kre
Date:           Mon Oct 21 15:56:44 UTC 2024

Modified Files:
        src/bin/sh: var.c

Log Message:
If searching for a variable with no name, bail out faster,
that can never succeed.    NFCI.


To generate a diff of this commit:
cvs rdiff -u -r1.86 -r1.87 src/bin/sh/var.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/bin/sh/var.c
diff -u src/bin/sh/var.c:1.86 src/bin/sh/var.c:1.87
--- src/bin/sh/var.c:1.86	Mon Oct 14 08:15:43 2024
+++ src/bin/sh/var.c	Mon Oct 21 15:56:44 2024
@@ -1,4 +1,4 @@
-/*	$NetBSD: var.c,v 1.86 2024/10/14 08:15:43 kre Exp $	*/
+/*	$NetBSD: var.c,v 1.87 2024/10/21 15:56:44 kre Exp $	*/
 
 /*-
  * Copyright (c) 1991, 1993
@@ -37,7 +37,7 @@
 #if 0
 static char sccsid[] = "@(#)var.c	8.3 (Berkeley) 5/4/95";
 #else
-__RCSID("$NetBSD: var.c,v 1.86 2024/10/14 08:15:43 kre Exp $");
+__RCSID("$NetBSD: var.c,v 1.87 2024/10/21 15:56:44 kre Exp $");
 #endif
 #endif /* not lint */
 
@@ -1356,6 +1356,9 @@ find_var(const char *name, struct var **
 	if (lenp)
 		*lenp = len;
 
+	if (len == 0)
+		return NULL;
+
 	vpp = &vartab[hashval % VTABSIZE];
 	if (vppp)
 		*vppp = vpp;

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