Module Name:    src
Committed By:   martin
Date:           Mon Nov 11 06:49:31 UTC 2024

Modified Files:
        src/lib/libc/gen: posix_spawnp.c

Log Message:
Error out early if posix_spawnp(3) is called with an empty file name


To generate a diff of this commit:
cvs rdiff -u -r1.4 -r1.5 src/lib/libc/gen/posix_spawnp.c

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

Modified files:

Index: src/lib/libc/gen/posix_spawnp.c
diff -u src/lib/libc/gen/posix_spawnp.c:1.4 src/lib/libc/gen/posix_spawnp.c:1.5
--- src/lib/libc/gen/posix_spawnp.c:1.4	Mon May 11 14:54:34 2020
+++ src/lib/libc/gen/posix_spawnp.c	Mon Nov 11 06:49:31 2024
@@ -1,4 +1,4 @@
-/*	$NetBSD: posix_spawnp.c,v 1.4 2020/05/11 14:54:34 kre Exp $	*/
+/*	$NetBSD: posix_spawnp.c,v 1.5 2024/11/11 06:49:31 martin Exp $	*/
 
 /*-
  * Copyright (c) 2011 The NetBSD Foundation, Inc.
@@ -31,7 +31,7 @@
 
 #include <sys/cdefs.h>
 #if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: posix_spawnp.c,v 1.4 2020/05/11 14:54:34 kre Exp $");
+__RCSID("$NetBSD: posix_spawnp.c,v 1.5 2024/11/11 06:49:31 martin Exp $");
 #endif /* LIBC_SCCS and not lint */
 
 #include "namespace.h"
@@ -58,6 +58,10 @@ int posix_spawnp(pid_t * __restrict pid,
 
 	_DIAGASSERT(file != NULL);
 
+	/* "" is not a valid filename; check this before traversing PATH. */
+	if (file[0] == '\0')
+		return ENOENT;
+
 	/*
 	 * If there is a / in the name, fall straight through to posix_spawn().
 	 */

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