Sender:	nate AT cartsys DOT com
Message-ID:	<37BDD1B6.625F6DE9@cartsys.com>
Date:	Fri, 20 Aug 1999 15:07:50 -0700
From:	Nate Eldredge <nate AT cartsys DOT com>
X-Mailer:	Mozilla 4.08 [en] (X11; I; Linux 2.2.12pre4 i586)
MIME-Version:	1.0
To:	djgpp-workers AT delorie DOT com
Subject:	[RESEND] Re: Possible Bug in realloc()
References:	<7pa8ti$73k AT newsstand DOT cit DOT cornell DOT edu>
Reply-To:	djgpp-workers AT delorie DOT com

Sorry to resend, but I think this is a fairly important bug and I wanted
to make sure the patch got in.

This fixes a reported bug where a realloc() when memory was exhausted
would dereference NULL and otherwise misbehave.

--- src/libc/ansi/stdlib/malloc.c       Thu Jun  3 14:13:20 1999
+++ src/libc/ansi/stdlib/malloc.c.new   Mon Aug 16 23:58:04 1999
@@ -348,6 +348,8 @@
   }
 
   newptr = (char *)malloc(size);
+  if (!newptr)
+    return NULL;
 #if DEBUG
   printf("realloc %u %u/%08x %08x->%08, %u\n",
         size, b->size & ~1, b, ptr, newptr, copysize);

-- 

Nate Eldredge
nate AT cartsys DOT com

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