From d5e082f0d52f652ba50fe33c97f62442d6619045 Mon Sep 17 00:00:00 2001
From: Darren Tucker <dtucker@zip.com.au>
Date: Mon, 22 Sep 2003 12:08:23 +1000
Subject: [PATCH]  - (dtucker) [configure.ac openbsd-compat/fake-rfc2553.c   
 openbsd-compat/fake-rfc2553.h] Bug #659: Test for and handle systems with   
 where gai_strerror is defined as "const char *".  Part of patch supplied   
 by bugzilla-openssh at thewrittenword.com

---
 ChangeLog                     |  6 +++++-
 configure.ac                  | 19 +++++++++++++++++--
 openbsd-compat/fake-rfc2553.c |  6 +++++-
 openbsd-compat/fake-rfc2553.h |  4 ++--
 4 files changed, 29 insertions(+), 6 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index dace988b1..78a258ffe 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -9,6 +9,10 @@
    Patch from david.haughton at ncr.com
  - (dtucker) [configure.ac] Bug #659: uid swapping issues on IRIX 6.
    Part of patch supplied by bugzilla-openssh at thewrittenword.com
+ - (dtucker) [configure.ac openbsd-compat/fake-rfc2553.c
+   openbsd-compat/fake-rfc2553.h] Bug #659: Test for and handle systems with
+   where gai_strerror is defined as "const char *".  Part of patch supplied
+   by bugzilla-openssh at thewrittenword.com
 
 20030919
  - (djm) Bug #683: Remove reference to --with-ipv4-default from INSTALL;
@@ -1145,4 +1149,4 @@
  - Fix sshd BindAddress and -b options for systems using fake-getaddrinfo.
    Report from murple@murple.net, diagnosis from dtucker@zip.com.au
 
-$Id: ChangeLog,v 1.3015 2003/09/22 01:58:21 dtucker Exp $
+$Id: ChangeLog,v 1.3016 2003/09/22 02:08:23 dtucker Exp $
diff --git a/configure.ac b/configure.ac
index b602e915b..7a4bd6ffc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-# $Id: configure.ac,v 1.161 2003/09/22 01:58:21 dtucker Exp $
+# $Id: configure.ac,v 1.162 2003/09/22 02:08:23 dtucker Exp $
 
 AC_INIT
 AC_CONFIG_SRCDIR([ssh.c])
@@ -731,7 +731,7 @@ dnl    Checks for library functions. Please keep in alphabetical order
 AC_CHECK_FUNCS(\
 	arc4random __b64_ntop b64_ntop __b64_pton b64_pton \
 	bcopy bindresvport_sa clock fchmod fchown freeaddrinfo futimes \
-	gai_strerror getaddrinfo getcwd getgrouplist getnameinfo getopt \
+	getaddrinfo getcwd getgrouplist getnameinfo getopt \
 	getpeereid _getpty getrlimit getttyent glob inet_aton \
 	inet_ntoa inet_ntop innetgr login_getcapbool md5_crypt memmove \
 	mkdtemp mmap ngetaddrinfo nsleep ogetaddrinfo openlog_r openpty \
@@ -743,6 +743,21 @@ AC_CHECK_FUNCS(\
 	truncate utimes vhangup vsnprintf waitpid \
 )
 
+# IRIX has a const char return value for gai_strerror()
+AC_CHECK_FUNCS(gai_strerror,[
+	AC_DEFINE(HAVE_GAI_STRERROR)
+	AC_TRY_COMPILE([
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+
+const char *gai_strerror(int);],[
+char *str;
+
+str = gai_strerror(0);],[
+		AC_DEFINE(HAVE_CONST_GAI_STRERROR_PROTO, 1,
+		[Define if gai_strerror() returns const char *])])])
+
 AC_SEARCH_LIBS(nanosleep, rt posix4, AC_DEFINE(HAVE_NANOSLEEP))
 
 dnl Make sure prototypes are defined for these before using them.
diff --git a/openbsd-compat/fake-rfc2553.c b/openbsd-compat/fake-rfc2553.c
index f44924836..0186b5300 100644
--- a/openbsd-compat/fake-rfc2553.c
+++ b/openbsd-compat/fake-rfc2553.c
@@ -37,7 +37,7 @@
 
 #include "includes.h"
 
-RCSID("$Id: fake-rfc2553.c,v 1.4 2003/06/13 22:43:23 djm Exp $");
+RCSID("$Id: fake-rfc2553.c,v 1.5 2003/09/22 02:08:23 dtucker Exp $");
 
 #ifndef HAVE_GETNAMEINFO
 int getnameinfo(const struct sockaddr *sa, size_t salen, char *host, 
@@ -77,7 +77,11 @@ int getnameinfo(const struct sockaddr *sa, size_t salen, char *host,
 #endif /* !HAVE_GETNAMEINFO */
 
 #ifndef HAVE_GAI_STRERROR
+#ifdef HAVE_CONST_GAI_STRERROR_PROTO
+const char *
+#else
 char *
+#endif
 gai_strerror(int err)
 {
 	switch (err) {
diff --git a/openbsd-compat/fake-rfc2553.h b/openbsd-compat/fake-rfc2553.h
index b70b928f8..bf727ceac 100644
--- a/openbsd-compat/fake-rfc2553.h
+++ b/openbsd-compat/fake-rfc2553.h
@@ -1,4 +1,4 @@
-/* $Id: fake-rfc2553.h,v 1.6 2003/08/29 16:59:52 mouring Exp $ */
+/* $Id: fake-rfc2553.h,v 1.7 2003/09/22 02:08:23 dtucker Exp $ */
 
 /*
  * Copyright (C) 2000-2003 Damien Miller.  All rights reserved.
@@ -137,7 +137,7 @@ int getaddrinfo(const char *, const char *,
     const struct addrinfo *, struct addrinfo **);
 #endif /* !HAVE_GETADDRINFO */
 
-#ifndef HAVE_GAI_STRERROR
+#if !defined(HAVE_GAI_STRERROR) && !defined(HAVE_CONST_GAI_STRERROR_PROTO)
 char *gai_strerror(int);
 #endif /* !HAVE_GAI_STRERROR */