- (dtucker) [sshlogin.c openbsd-compat/port-aix.{c,h}] Bug #1595: make

PrintLastLog work on AIX.  Based in part on a patch from Miguel Sanders.

ChangeLog

@@ -2,6 +2,8 @@
  - (dtucker) [configure.ac] Check for headers before libraries for openssl an
    zlib, which should make the errors slightly more meaningful on platforms
    where there's separate "-devel" packages for those.
+ - (dtucker) [sshlogin.c openbsd-compat/port-aix.{c,h}] Bug #1595: make
+   PrintLastLog work on AIX.  Based in part on a patch from Miguel Sanders.
 
 20090729
  - (tim) [contrib/cygwin/ssh-user-config] Change script to call correct error

openbsd-compat/port-aix.c

@@ -57,6 +57,8 @@
 
 #include "port-aix.h"
 
+static char *lastlogin_msg = NULL;
+
 # ifdef HAVE_SETAUTHDB
 static char old_registry[REGISTRY_SIZE] = "";
 # endif
@@ -276,23 +278,30 @@ sys_auth_record_login(const char *user, const char *host, const char *ttynm,
     Buffer *loginmsg)
 {
 	char *msg = NULL;
-	static int msg_done = 0;
 	int success = 0;
 
 	aix_setauthdb(user);
 	if (loginsuccess((char *)user, (char *)host, (char *)ttynm, &msg) == 0) {
 		success = 1;
-		if (msg != NULL && loginmsg != NULL && !msg_done) {
+		if (msg != NULL) {
 			debug("AIX/loginsuccess: msg %s", msg);
-			buffer_append(loginmsg, msg, strlen(msg));
-			xfree(msg);
-			msg_done = 1;
+			if (lastlogin_msg == NULL)
+				lastlogin_msg = msg;
 		}
 	}
 	aix_restoreauthdb();
 	return (success);
 }
 
+char *
+sys_auth_get_lastlogin_msg(const char *user, uid_t uid)
+{
+	char *msg = lastlogin_msg;
+
+	lastlogin_msg = NULL;
+	return msg;
+}
+
 #  ifdef CUSTOM_FAILED_LOGIN
 /*
  * record_failed_login: generic "login failed" interface function

openbsd-compat/port-aix.h

@@ -1,4 +1,4 @@
-/* $Id: port-aix.h,v 1.29 2008/03/09 05:36:55 dtucker Exp $ */
+/* $Id: port-aix.h,v 1.30 2009/08/16 23:40:00 dtucker Exp $ */
 
 /*
  *
@@ -87,6 +87,8 @@ void aix_usrinfo(struct passwd *);
 int sys_auth_allowed_user(struct passwd *, Buffer *);
 # define CUSTOM_SYS_AUTH_RECORD_LOGIN 1
 int sys_auth_record_login(const char *, const char *, const char *, Buffer *);
+# define CUSTOM_SYS_AUTH_GET_LASTLOGIN_MSG
+char *sys_auth_get_lastlogin_msg(const char *, uid_t);
 # define CUSTOM_FAILED_LOGIN 1
 #endif
 

sshlogin.c

@@ -93,6 +93,13 @@ store_lastlog_message(const char *user, uid_t uid)
 	if (!options.print_lastlog)
 		return;
 
+# ifdef CUSTOM_SYS_AUTH_GET_LASTLOGIN_MSG
+	time_string = sys_auth_get_lastlogin_msg(user, uid);
+	if (time_string != NULL) {
+		buffer_append(&loginmsg, time_string, strlen(time_string));
+		xfree(time_string);
+	}
+# else
 	last_login_time = get_last_login_time(uid, user, hostname,
 	    sizeof(hostname));
 
@@ -107,6 +114,7 @@ store_lastlog_message(const char *user, uid_t uid)
 			    time_string, hostname);
 		buffer_append(&loginmsg, buf, strlen(buf));
 	}
+# endif /* CUSTOM_SYS_AUTH_GET_LASTLOGIN_MSG */
 #endif /* NO_SSH_LASTLOG */
 }