From 182e1909b2d8f1cd6ceb392910f0a355da8d249a Mon Sep 17 00:00:00 2001
From: christiaans <christiaans>
Date: Mon, 13 Feb 2006 08:14:11 +0000
Subject: [PATCH] Patch from Curt McDowell fixes err_to_errno macro.

---
 src/api/sockets.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/api/sockets.c b/src/api/sockets.c
index 0528ac44..290a7b73 100644
--- a/src/api/sockets.c
+++ b/src/api/sockets.c
@@ -87,9 +87,12 @@ static int err_to_errno_table[11] = {
     EADDRINUSE    /* ERR_USE  -10     Address in use.          */
 };
 
+#define ERR_TO_ERRNO_TABLE_SIZE \
+  (sizeof(err_to_errno_table)/sizeof(err_to_errno_table[0]))
+
 #define err_to_errno(err) \
-  ((err) < (sizeof(err_to_errno_table)/sizeof(int))) ? \
-    err_to_errno_table[-(err)] : EIO
+  (-(err) >= 0 && -(err) < ERR_TO_ERRNO_TABLE_SIZE ? \
+    err_to_errno_table[-(err)] : EIO)
 
 #ifdef ERRNO
 #define set_errno(err) errno = (err)