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Fixed problem with _TIFFrealloc() when the NULL pointer passed. Patch

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supplied by Larry Grill.
This commit is contained in:
Andrey Kiselev 2003-12-31 09:49:47 +00:00
parent 835b0870c7
commit 85521acc1a
1 changed files with 5 additions and 1 deletions
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6
libtiff/tif_win32.c
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@ -1,4 +1,4 @@
/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_win32.c,v 1.6 2000-04-04 14:54:34 mwelles Exp $ */ /* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_win32.c,v 1.7 2003-12-31 09:49:47 dron Exp $ */
/* /*
* Copyright (c) 1988-1997 Sam Leffler * Copyright (c) 1988-1997 Sam Leffler
@ -226,6 +226,10 @@ _TIFFrealloc(tdata_t p, tsize_t s)
{ {
void* pvTmp; void* pvTmp;
tsize_t old=GlobalSize(p); tsize_t old=GlobalSize(p);
if(p==NULL)
return ((tdata_t)GlobalAlloc(GMEM_FIXED, s));
if (old>=s) if (old>=s)
{ {
if ((pvTmp = GlobalAlloc(GMEM_FIXED, s)) != NULL) { if ((pvTmp = GlobalAlloc(GMEM_FIXED, s)) != NULL) {