Module Name: src
Committed By: ginsbach
Date: Sat Aug 12 01:10:04 UTC 2017
Modified Files:
src/lib/libc/stdlib: merge.c
Log Message:
PR lib/50316: Gracefully handle a zero number of members argument.
Taken from FreeBSD (which fixed this same issue long ago).
XXX: pullup-8
XXX: pullup-7
XXX: pullup-6
To generate a diff of this commit:
cvs rdiff -u -r1.14 -r1.15 src/lib/libc/stdlib/merge.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/stdlib/merge.c
diff -u src/lib/libc/stdlib/merge.c:1.14 src/lib/libc/stdlib/merge.c:1.15
--- src/lib/libc/stdlib/merge.c:1.14 Tue Mar 13 21:13:48 2012
+++ src/lib/libc/stdlib/merge.c Sat Aug 12 01:10:04 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: merge.c,v 1.14 2012/03/13 21:13:48 christos Exp $ */
+/* $NetBSD: merge.c,v 1.15 2017/08/12 01:10:04 ginsbach Exp $ */
/*-
* Copyright (c) 1992, 1993
@@ -37,7 +37,7 @@
#if 0
static char sccsid[] = "from: @(#)merge.c 8.2 (Berkeley) 2/14/94";
#else
-__RCSID("$NetBSD: merge.c,v 1.14 2012/03/13 21:13:48 christos Exp $");
+__RCSID("$NetBSD: merge.c,v 1.15 2017/08/12 01:10:04 ginsbach Exp $");
#endif
#endif /* LIBC_SCCS and not lint */
@@ -125,6 +125,9 @@ mergesort(void *base, size_t nmemb, size
return (-1);
}
+ if (nmemb == 0)
+ return (0);
+
/*
* XXX
* Stupid subtraction for the Cray.
