CVS commit: src/lib/libc/gdtoa

[Christos Zoulas]

Module Name:    src
Committed By:   christos
Date:           Tue Jun 15 10:56:52 UTC 2021

Modified Files:
        src/lib/libc/gdtoa: hdtoa.c

Log Message:
PR/56247: Greg A. Woods: printf("%La", LDBL_MIN) dumps core
Don't write to ((char *)malloc(size))[-1];


To generate a diff of this commit:
cvs rdiff -u -r1.11 -r1.12 src/lib/libc/gdtoa/hdtoa.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/gdtoa/hdtoa.c
diff -u src/lib/libc/gdtoa/hdtoa.c:1.11 src/lib/libc/gdtoa/hdtoa.c:1.12
--- src/lib/libc/gdtoa/hdtoa.c:1.11	Sat Apr 11 16:48:53 2020
+++ src/lib/libc/gdtoa/hdtoa.c	Tue Jun 15 06:56:52 2021
@@ -1,4 +1,4 @@
-/*	$NetBSD: hdtoa.c,v 1.11 2020/04/11 20:48:53 christos Exp $	*/
+/*	$NetBSD: hdtoa.c,v 1.12 2021/06/15 10:56:52 christos Exp $	*/
 
 /*-
  * Copyright (c) 2004, 2005 David Schultz <d...@freebsd.org>
@@ -30,7 +30,7 @@
 #if 0
 __FBSDID("$FreeBSD: src/lib/libc/gdtoa/_hdtoa.c,v 1.4 2007/01/03 04:57:58 das Exp $");
 #else
-__RCSID("$NetBSD: hdtoa.c,v 1.11 2020/04/11 20:48:53 christos Exp $");
+__RCSID("$NetBSD: hdtoa.c,v 1.12 2021/06/15 10:56:52 christos Exp $");
 #endif
 
 #include <float.h>
@@ -256,7 +256,7 @@ char *
 hldtoa(long double e, const char *xdigs, int ndigits, int *decpt, int *sign,
     char **rve)
 {
-	static const int sigfigs = (LDBL_MANT_DIG + 3) / 4;
+	static const int sigfigs = (LDBL_MANT_DIG + 3) / 4 + 1;
 	union ieee_ext_u u;
 	char *s, *s0;
 	size_t bufsize;