X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=bfd%2Fbfdio.c;h=d8aa1de99926761fa015bab24c49798563cec37b;hb=6bba1048d63e0476b94b9934527defd81c590a13;hp=0aa82a9d2e2aedef7684b88d937334ae60a8fe7f;hpb=74633dd0749d738b2b6de5c44e4aea514a97019a;p=deliverable%2Fbinutils-gdb.git

diff --git a/bfd/bfdio.c b/bfd/bfdio.c
index 0aa82a9d2e..d8aa1de999 100644
--- a/bfd/bfdio.c
+++ b/bfd/bfdio.c
@@ -1,34 +1,33 @@
 /* Low-level I/O routines for BFDs.
 
    Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-   1999, 2000, 2001, 2002, 2003, 2004, 2005
+   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
    Free Software Foundation, Inc.
 
    Written by Cygnus Support.
 
-This file is part of BFD, the Binary File Descriptor library.
+   This file is part of BFD, the Binary File Descriptor library.
 
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
 
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
 
 #include "sysdep.h"
-
+#include <limits.h>
 #include "bfd.h"
 #include "libbfd.h"
 
-#include <limits.h>
-
 #ifndef S_IXUSR
 #define S_IXUSR 0100    /* Execute by owner.  */
 #endif
@@ -116,6 +115,15 @@ bfd_bread (void *ptr, bfd_size_type size, bfd *abfd)
 {
   size_t nread;
 
+  /* If this is an archive element, don't read past the end of
+     this element.  */
+  if (abfd->arelt_data != NULL)
+    {
+      size_t maxbytes = ((struct areltdata *) abfd->arelt_data)->parsed_size;
+      if (size > maxbytes)
+	size = maxbytes;
+    }
+
   if ((abfd->flags & BFD_IN_MEMORY) != 0)
     {
       struct bfd_in_memory *bim;
@@ -166,8 +174,8 @@ bfd_bwrite (const void *ptr, bfd_size_type size, bfd *abfd)
 	  newsize = (bim->size + 127) & ~(bfd_size_type) 127;
 	  if (newsize > oldsize)
 	    {
-	      bim->buffer = bfd_realloc (bim->buffer, newsize);
-	      if (bim->buffer == 0)
+	      bim->buffer = bfd_realloc_or_free (bim->buffer, newsize);
+	      if (bim->buffer == NULL)
 		{
 		  bim->size = 0;
 		  return 0;
@@ -290,8 +298,8 @@ bfd_seek (bfd *abfd, file_ptr position, int direction)
 	      newsize = (bim->size + 127) & ~(bfd_size_type) 127;
 	      if (newsize > oldsize)
 	        {
-		  bim->buffer = bfd_realloc (bim->buffer, newsize);
-		  if (bim->buffer == 0)
+		  bim->buffer = bfd_realloc_or_free (bim->buffer, newsize);
+		  if (bim->buffer == NULL)
 		    {
 		      bim->size = 0;
 		      return -1;