- markus@cvs.openbsd.org 2001/06/03 14:55:39

[channels.c channels.h session.c]
     use fatal_register_cleanup instead of atexit, sync with x11 authdir
     handling

ChangeLog

@@ -20,6 +20,10 @@
    - markus@cvs.openbsd.org 2001/05/31 13:08:04
      [sshd_config]
      group options and add some more comments
+   - markus@cvs.openbsd.org 2001/06/03 14:55:39
+     [channels.c channels.h session.c]
+     use fatal_register_cleanup instead of atexit, sync with x11 authdir 
+     handling
 
 20010606
  - OpenBSD CVS Sync
@@ -5531,4 +5535,4 @@
  - Wrote replacements for strlcpy and mkdtemp
  - Released 1.0pre1
 
-$Id: ChangeLog,v 1.1253 2001/06/09 01:09:51 mouring Exp $
+$Id: ChangeLog,v 1.1254 2001/06/09 01:11:59 mouring Exp $

channels.c

@@ -40,7 +40,7 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: channels.c,v 1.121 2001/05/31 10:30:14 markus Exp $");
+RCSID("$OpenBSD: channels.c,v 1.122 2001/06/03 14:55:38 markus Exp $");
 
 #include "ssh.h"
 #include "ssh1.h"
@@ -2777,10 +2777,13 @@ auth_get_socket_name()
 /* removes the agent forwarding socket */
 
 void
-cleanup_socket(void)
+auth_sock_cleanup_proc(void *ignored)
 {
-	unlink(auth_sock_name);
-	rmdir(auth_sock_dir);
+	if (auth_sock_name) {
+		unlink(auth_sock_name);
+		rmdir(auth_sock_dir);
+		auth_sock_name = NULL;
+	}
 }
 
 /*
@@ -2822,11 +2825,9 @@ auth_input_request_forwarding(struct passwd * pw)
 	snprintf(auth_sock_name, MAXPATHLEN, "%s/agent.%d",
 		 auth_sock_dir, (int) getpid());
 
-	if (atexit(cleanup_socket) < 0) {
-		int saved = errno;
-		cleanup_socket();
-		packet_disconnect("socket: %.100s", strerror(saved));
-	}
+	/* delete agent socket on fatal() */
+	fatal_add_cleanup(auth_sock_cleanup_proc, NULL);
+
 	/* Create the socket. */
 	sock = socket(AF_UNIX, SOCK_STREAM, 0);
 	if (sock < 0)
@@ -2855,6 +2856,7 @@ auth_input_request_forwarding(struct passwd * pw)
 	    0, xstrdup("auth socket"), 1);
 	if (nc == NULL) {
 		error("auth_input_request_forwarding: channel_new failed");
+		auth_sock_cleanup_proc(NULL);
 		close(sock);
 		return 0;
 	}

channels.h

@@ -32,7 +32,7 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-/* RCSID("$OpenBSD: channels.h,v 1.35 2001/05/31 10:30:15 markus Exp $"); */
+/* RCSID("$OpenBSD: channels.h,v 1.36 2001/06/03 14:55:39 markus Exp $"); */
 
 #ifndef CHANNEL_H
 #define CHANNEL_H
@@ -223,6 +223,7 @@ void	deny_input_open(int type, int plen, void *ctxt);
 
 void    auth_request_forwarding(void);
 char   *auth_get_socket_name(void);
+void	auth_sock_cleanup_proc(void *ignored);
 int     auth_input_request_forwarding(struct passwd * pw);
 void    auth_input_open_request(int type, int plen, void *ctxt);
 

session.c

@@ -33,7 +33,7 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: session.c,v 1.78 2001/05/31 10:30:16 markus Exp $");
+RCSID("$OpenBSD: session.c,v 1.79 2001/06/03 14:55:39 markus Exp $");
 
 #include "ssh.h"
 #include "ssh1.h"
@@ -132,6 +132,7 @@ void	do_pre_login(Session *s);
 void	do_child(Session *s, const char *command);
 void	do_motd(void);
 int	check_quietlogin(Session *s, const char *command);
+void	xauthfile_cleanup_proc(void *ignore);
 
 void	do_authenticated1(Authctxt *authctxt);
 void	do_authenticated2(Authctxt *authctxt);
@@ -196,6 +197,12 @@ do_authenticated(Authctxt *authctxt)
 		do_authenticated2(authctxt);
 	else
 		do_authenticated1(authctxt);
+
+	/* remote user's local Xauthority file and agent socket */
+	if (xauthfile)
+		xauthfile_cleanup_proc(NULL);
+	if (auth_get_socket_name())
+		auth_sock_cleanup_proc(NULL);
 }
 
 /*
@@ -446,9 +453,6 @@ do_authenticated1(Authctxt *authctxt)
 
 			if (command != NULL)
 				xfree(command);
-			/* Cleanup user's local Xauthority file. */
-			if (xauthfile)
-				xauthfile_cleanup_proc(NULL);
 			return;
 
 		default:
@@ -2105,6 +2109,4 @@ do_authenticated2(Authctxt *authctxt)
 {
 
 	server_loop2();
-	if (xauthfile)
-		xauthfile_cleanup_proc(NULL);
 }