- dtucker@cvs.openbsd.org 2007/12/27 14:22:08

     [servconf.c canohost.c misc.c channels.c sshconnect.c misc.h ssh-keyscan.c
     sshd.c]
     Add a small helper function to consistently handle the EAI_SYSTEM error
     code of getaddrinfo.  Prompted by vgiffin at apple com via bz #1417.
     ok markus@ stevesk@

9 files changed, 41 insertions, 23 deletions

diff --git a/ChangeLog b/ChangeLog
index 247f0e10..5b8dec75 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -4,6 +4,12 @@
      [sftp.c]
      unbreak lls command and add a regress test that would have caught the
      breakage; spotted by mouring@
+   - dtucker@cvs.openbsd.org 2007/12/27 14:22:08
+     [servconf.c canohost.c misc.c channels.c sshconnect.c misc.h ssh-keyscan.c
+      sshd.c]
+     Add a small helper function to consistently handle the EAI_SYSTEM error
+     code of getaddrinfo.  Prompted by vgiffin at apple com via bz #1417.
+     ok markus@ stevesk@
 
 20071202
  - (dtucker) [configure.ac] Enable -fstack-protector-all on systems where
@@ -3465,4 +3471,4 @@
    OpenServer 6 and add osr5bigcrypt support so when someone migrates
    passwords between UnixWare and OpenServer they will still work. OK dtucker@
 
-$Id: ChangeLog,v 1.4807 2007/12/28 15:40:43 dtucker Exp $
+$Id: ChangeLog,v 1.4808 2007/12/28 15:43:51 dtucker Exp $
diff --git a/canohost.c b/canohost.c
index 2345cc35..8270500d 100644
--- a/canohost.c
+++ b/canohost.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: canohost.c,v 1.61 2006/08/03 03:34:41 deraadt Exp $ */
+/* $OpenBSD: canohost.c,v 1.62 2007/12/27 14:22:08 dtucker Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -32,6 +32,7 @@
 #include "packet.h"
 #include "log.h"
 #include "canohost.h"
+#include "misc.h"
 
 static void check_ip_options(int, char *);
 
@@ -271,7 +272,7 @@ get_socket_address(int sock, int remote, int flags)
 	if ((r = getnameinfo((struct sockaddr *)&addr, addrlen, ntop,
 	    sizeof(ntop), NULL, 0, flags)) != 0) {
 		error("get_socket_address: getnameinfo %d failed: %s", flags,
-		    r == EAI_SYSTEM ? strerror(errno) : gai_strerror(r));
+		    ssh_gai_strerror(r));
 		return NULL;
 	}
 	return xstrdup(ntop);
@@ -372,7 +373,7 @@ get_sock_port(int sock, int local)
 	if ((r = getnameinfo((struct sockaddr *)&from, fromlen, NULL, 0,
 	    strport, sizeof(strport), NI_NUMERICSERV)) != 0)
 		fatal("get_sock_port: getnameinfo NI_NUMERICSERV failed: %s",
-		    r == EAI_SYSTEM ? strerror(errno) : gai_strerror(r));
+		    ssh_gai_strerror(r));
 	return atoi(strport);
 }
 
diff --git a/channels.c b/channels.c
index 2006353d..25ebe129 100644
--- a/channels.c
+++ b/channels.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: channels.c,v 1.270 2007/06/25 08:20:03 dtucker Exp $ */
+/* $OpenBSD: channels.c,v 1.271 2007/12/27 14:22:08 dtucker Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -2409,10 +2409,11 @@ channel_setup_fwd_listener(int type, const char *listen_addr, u_short listen_por
 		if (addr == NULL) {
 			/* This really shouldn't happen */
 			packet_disconnect("getaddrinfo: fatal error: %s",
-			    gai_strerror(r));
+			    ssh_gai_strerror(r));
 		} else {
 			error("channel_setup_fwd_listener: "
-			    "getaddrinfo(%.64s): %s", addr, gai_strerror(r));
+			    "getaddrinfo(%.64s): %s", addr,
+			    ssh_gai_strerror(r));
 		}
 		return 0;
 	}
@@ -2732,7 +2733,7 @@ connect_to(const char *host, u_short port)
 	snprintf(strport, sizeof strport, "%d", port);
 	if ((gaierr = getaddrinfo(host, strport, &hints, &aitop)) != 0) {
 		error("connect_to %.100s: unknown host (%s)", host,
-		    gai_strerror(gaierr));
+		    ssh_gai_strerror(gaierr));
 		return -1;
 	}
 	for (ai = aitop; ai; ai = ai->ai_next) {
@@ -2874,7 +2875,7 @@ x11_create_display_inet(int x11_display_offset, int x11_use_localhost,
 		hints.ai_socktype = SOCK_STREAM;
 		snprintf(strport, sizeof strport, "%d", port);
 		if ((gaierr = getaddrinfo(NULL, strport, &hints, &aitop)) != 0) {
-			error("getaddrinfo: %.100s", gai_strerror(gaierr));
+			error("getaddrinfo: %.100s", ssh_gai_strerror(gaierr));
 			return -1;
 		}
 		for (ai = aitop; ai; ai = ai->ai_next) {
@@ -3047,7 +3048,8 @@ x11_connect_display(void)
 	hints.ai_socktype = SOCK_STREAM;
 	snprintf(strport, sizeof strport, "%u", 6000 + display_number);
 	if ((gaierr = getaddrinfo(buf, strport, &hints, &aitop)) != 0) {
-		error("%.100s: unknown host. (%s)", buf, gai_strerror(gaierr));
+		error("%.100s: unknown host. (%s)", buf,
+		ssh_gai_strerror(gaierr));
 		return -1;
 	}
 	for (ai = aitop; ai; ai = ai->ai_next) {
diff --git a/misc.c b/misc.c
index 625a3436..2ca0414d 100644
--- a/misc.c
+++ b/misc.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: misc.c,v 1.65 2006/11/23 01:35:11 ray Exp $ */
+/* $OpenBSD: misc.c,v 1.66 2007/12/27 14:22:08 dtucker Exp $ */
 /*
  * Copyright (c) 2000 Markus Friedl.  All rights reserved.
  * Copyright (c) 2005,2006 Damien Miller.  All rights reserved.
@@ -42,6 +42,7 @@
 
 #include <errno.h>
 #include <fcntl.h>
+#include <netdb.h>
 #ifdef HAVE_PATHS_H
 # include <paths.h>
 #include <pwd.h>
@@ -120,6 +121,14 @@ unset_nonblock(int fd)
 	return (0);
 }
 
+const char *
+ssh_gai_strerror(int gaierr)
+{
+        if (gaierr == EAI_SYSTEM)
+                return strerror(errno);
+        return gai_strerror(gaierr);
+}
+
 /* disable nagle on socket */
 void
 set_nodelay(int fd)
diff --git a/misc.h b/misc.h
index f175b442..be05e806 100644
--- a/misc.h
+++ b/misc.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: misc.h,v 1.36 2006/08/18 10:27:16 djm Exp $ */
+/* $OpenBSD: misc.h,v 1.37 2007/12/27 14:22:08 dtucker Exp $ */
 
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
@@ -35,6 +35,7 @@ char	*tohex(const void *, size_t);
 void	 sanitise_stdfd(void);
 
 struct passwd *pwcopy(struct passwd *);
+const char *ssh_gai_strerror(int);
 
 typedef struct arglist arglist;
 struct arglist {
diff --git a/servconf.c b/servconf.c
index 1a754517..d4c01f7f 100644
--- a/servconf.c
+++ b/servconf.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: servconf.c,v 1.172 2007/04/23 10:15:39 dtucker Exp $ */
+/* $OpenBSD: servconf.c,v 1.173 2007/12/27 14:22:08 dtucker Exp $ */
 /*
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
  *                    All rights reserved
@@ -458,7 +458,7 @@ add_one_listen_addr(ServerOptions *options, char *addr, u_short port)
 	if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
 		fatal("bad addr or host: %s (%s)",
 		    addr ? addr : "<NULL>",
-		    gai_strerror(gaierr));
+		    ssh_gai_strerror(gaierr));
 	for (ai = aitop; ai->ai_next; ai = ai->ai_next)
 		;
 	ai->ai_next = options->listen_addrs;
diff --git a/ssh-keyscan.c b/ssh-keyscan.c
index b1986400..43ebfee5 100644
--- a/ssh-keyscan.c
+++ b/ssh-keyscan.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ssh-keyscan.c,v 1.74 2006/10/06 02:29:19 djm Exp $ */
+/* $OpenBSD: ssh-keyscan.c,v 1.75 2007/12/27 14:22:08 dtucker Exp $ */
 /*
  * Copyright 1995, 1996 by David Mazieres <dm@lcs.mit.edu>.
  *
@@ -410,7 +410,7 @@ tcpconnect(char *host)
 	hints.ai_family = IPv4or6;
 	hints.ai_socktype = SOCK_STREAM;
 	if ((gaierr = getaddrinfo(host, strport, &hints, &aitop)) != 0)
-		fatal("getaddrinfo %s: %s", host, gai_strerror(gaierr));
+		fatal("getaddrinfo %s: %s", host, ssh_gai_strerror(gaierr));
 	for (ai = aitop; ai; ai = ai->ai_next) {
 		s = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
 		if (s < 0) {
diff --git a/sshconnect.c b/sshconnect.c
index 933df39f..a604c972 100644
--- a/sshconnect.c
+++ b/sshconnect.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: sshconnect.c,v 1.202 2007/09/04 11:15:55 djm Exp $ */
+/* $OpenBSD: sshconnect.c,v 1.203 2007/12/27 14:22:08 dtucker Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -224,7 +224,7 @@ ssh_create_socket(int privileged, struct addrinfo *ai)
 	gaierr = getaddrinfo(options.bind_address, "0", &hints, &res);
 	if (gaierr) {
 		error("getaddrinfo: %s: %s", options.bind_address,
-		    gai_strerror(gaierr));
+		    ssh_gai_strerror(gaierr));
 		close(sock);
 		return -1;
 	}
@@ -356,8 +356,8 @@ ssh_connect(const char *host, struct sockaddr_storage * hostaddr,
 	hints.ai_socktype = SOCK_STREAM;
 	snprintf(strport, sizeof strport, "%u", port);
 	if ((gaierr = getaddrinfo(host, strport, &hints, &aitop)) != 0)
-		fatal("%s: %.100s: %s", __progname, host,
-		    gai_strerror(gaierr));
+		fatal("%s: Could not resolve hostname %.100s: %s", __progname,
+		    host, ssh_gai_strerror(gaierr));
 
 	for (attempt = 0; attempt < connection_attempts; attempt++) {
 		if (attempt > 0) {
diff --git a/sshd.c b/sshd.c
index 04778ea9..39923788 100644
--- a/sshd.c
+++ b/sshd.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: sshd.c,v 1.351 2007/05/22 10:18:52 djm Exp $ */
+/* $OpenBSD: sshd.c,v 1.352 2007/12/27 14:22:08 dtucker Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -953,8 +953,7 @@ server_listen(void)
 		    ntop, sizeof(ntop), strport, sizeof(strport),
 		    NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
 			error("getnameinfo failed: %.100s",
-			    (ret != EAI_SYSTEM) ? gai_strerror(ret) :
-			    strerror(errno));
+			    ssh_gai_strerror(ret));
 			continue;
 		}
 		/* Create socket for listening. */