From: benno <benno@openbsd.org>
Date: Thu, 25 Dec 2014 22:20:52 +0000 (+0000)
Subject: return ERANGE instead of ENOMEM, so callers can differentiate real oom
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=ec2a4e0ffccc34360c4f69d28ae1a71cb6ee178a;p=openbsd

return ERANGE instead of ENOMEM, so callers can differentiate real oom
from this case where we have a static buffer and cant realloc.

ok phessler, claudio, reyk
---

diff --git a/lib/libutil/imsg-buffer.c b/lib/libutil/imsg-buffer.c
index 65413c08e1d..318f9184998 100644
--- a/lib/libutil/imsg-buffer.c
+++ b/lib/libutil/imsg-buffer.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg-buffer.c,v 1.4 2014/06/30 00:25:17 deraadt Exp $	*/
+/*	$OpenBSD: imsg-buffer.c,v 1.5 2014/12/25 22:20:52 benno Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -74,7 +74,7 @@ ibuf_realloc(struct ibuf *buf, size_t len)
 
 	/* on static buffers max is eq size and so the following fails */
 	if (buf->wpos + len > buf->max) {
-		errno = ENOMEM;
+		errno = ERANGE;
 		return (-1);
 	}