From: Julian Seward <jseward@acm.org>
Date: Wed, 21 Aug 2002 22:29:14 +0000 (+0000)
Subject: Fix for the following:
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0cb50c90f7c017221bed9a0f1a33b2f6f73292f5;p=thirdparty%2Fvalgrind.git

Fix for the following:
vg_mylibc:VG_(strncpy)() behaves dubiously -- it can write a
'\0' past the end of the given array.

Possibly accounting for some strange behaviour in the g++3 demangler?


git-svn-id: svn://svn.valgrind.org/valgrind/branches/VALGRIND_1_0_BRANCH@613
---

diff --git a/vg_mylibc.c b/vg_mylibc.c
index da63d4c2e8..38f5a3dd42 100644
--- a/vg_mylibc.c
+++ b/vg_mylibc.c
@@ -765,7 +765,13 @@ void VG_(strncpy_safely) ( Char* dest, const Char* src, Int ndest )
 
 void VG_(strncpy) ( Char* dest, const Char* src, Int ndest )
 {
-   VG_(strncpy_safely)( dest, src, ndest+1 ); 
+   Int i = 0;
+   while (True) {
+      if (src[i] == 0) return;
+      if (i >= ndest) return;
+      dest[i] = src[i];
+      i++;
+   }
 }