- (dtucker) [auth-sia.c] Bug #1241: support password expiry on Tru64 SIA

systems.  Patch from R. Scott Bailey.

ChangeLog

@@ -158,6 +158,8 @@
     takes 2 more args.  with djm@
   - (dtucker) [defines.h] Bug #1112: __dead is, well dead. Based on a patch
     from Todd Vierling.
+  - (dtucker) [auth-sia.c] Bug #1241: support password expiry on Tru64 SIA
+    systems.  Patch from R. Scott Bailey.
 
 20080611
  - (djm) [channels.c configure.ac]
@@ -4320,4 +4322,4 @@
    OpenServer 6 and add osr5bigcrypt support so when someone migrates
    passwords between UnixWare and OpenServer they will still work. OK dtucker@
 
-$Id: ChangeLog,v 1.4998 2008/06/13 00:58:50 dtucker Exp $
+$Id: ChangeLog,v 1.4999 2008/06/13 01:13:13 dtucker Exp $

auth-sia.c

@@ -34,6 +34,10 @@
 #include <unistd.h>
 #include <stdarg.h>
 #include <string.h>
+#include <sys/types.h>
+#include <sys/security.h>
+#include <prot.h>
+#include <time.h>
 
 #include "ssh.h"
 #include "key.h"
@@ -49,6 +53,52 @@ extern ServerOptions options;
 extern int saved_argc;
 extern char **saved_argv;
 
+static int
+sia_password_change_required(const char *user)
+{
+	struct es_passwd *acct;
+	time_t pw_life;
+	time_t pw_date;
+
+	set_auth_parameters(saved_argc, saved_argv);
+
+	if ((acct = getespwnam(user)) == NULL) {
+		error("Couldn't access protected database entry for %s", user);
+		endprpwent();
+		return (0);
+	}
+
+	/* If forced password change flag is set, honor it */
+	if (acct->uflg->fg_psw_chg_reqd && acct->ufld->fd_psw_chg_reqd) {
+		endprpwent();
+		return (1);
+	}
+
+	/* Obtain password lifetime; if none, it can't have expired */
+	if (acct->uflg->fg_expire)
+		pw_life = acct->ufld->fd_expire;
+	else if (acct->sflg->fg_expire)
+		pw_life = acct->sfld->fd_expire;
+	else {
+		endprpwent();
+		return (0);
+	}
+
+	/* Offset from last change; if none, it must be expired */
+	if (acct->uflg->fg_schange)
+		pw_date = acct->ufld->fd_schange + pw_life;
+	else {
+		endprpwent();
+		return (1);
+	}
+
+	endprpwent();
+
+	/* If expiration date is prior to now, change password */
+	
+	return (pw_date <= time((time_t *) NULL));
+}
+
 int
 sys_auth_passwd(Authctxt *authctxt, const char *pass)
 {
@@ -76,6 +126,9 @@ sys_auth_passwd(Authctxt *authctxt, const char *pass)
 
 	sia_ses_release(&ent);
 
+	authctxt->force_pwchange = sia_password_change_required(
+		authctxt->user);
+
 	return (1);
 }