From 31d783ac87930fa7abafdf87ae5cb6701563483b Mon Sep 17 00:00:00 2001
From: "Todd C. Miller" <Todd.Miller@courtesan.com>
Date: Mon, 19 Oct 1998 00:21:59 +0000
Subject: [PATCH] Initial revision

---
 check_sia.c | 135 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 135 insertions(+)
 create mode 100644 check_sia.c

diff --git a/check_sia.c b/check_sia.c
new file mode 100644
index 000000000..971cf36ce
--- /dev/null
+++ b/check_sia.c
@@ -0,0 +1,135 @@
+/*
+ *  CU sudo version 1.5.7
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 1, or (at your option)
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *  Please send bugs, changes, problems to sudo-bugs@courtesan.com
+ *
+ *******************************************************************
+ *
+ *  check_sia.c -- check a user's password using Digital UN*X's
+ *                 Security Integration Architecture
+ *
+ *  Spider Boardman Sep 26, 1998
+ */
+
+#ifndef lint
+static char rcsid[] = "$Id$";
+#endif /* lint */
+
+#include "config.h"
+
+#ifdef HAVE_SIA
+
+#include <stdio.h>
+#ifdef STDC_HEADERS
+#include <stdlib.h>
+#endif /* STDC_HEADERS */
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif /* HAVE_STRING_H */
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif /* HAVE_STRINGS_H */
+#include <sys/param.h>
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <pwd.h>
+#include <siad.h>
+
+#include "sudo.h"
+
+/*
+ * Prototypes for local functions
+ */
+static int tcollect	__P((int, int, uchar_t *, int, prompt_t *));
+
+/********************************************************************
+ *  tcollect()
+ *
+ *  Collection routine (callback) for limiting the timeouts in SIA
+ *  prompts.
+ */
+static int tcollect(timeout, rendition, title, nprompts, prompts)
+    int timeout;
+    int rendition;
+    uchar_t *title;
+    int nprompts;
+    prompt_t *prompts;
+{
+    switch (rendition) {
+	case SIAFORM:
+	case SIAONELINER:
+	    if (timeout <= 0 || timeout > PASSWORD_TIMEOUT * 60)
+		timeout = PASSWORD_TIMEOUT * 60;
+	    break;
+	default:
+	    break;
+    }
+    return sia_collect_trm(timeout, rendition, title, nprompts, prompts);
+}
+
+/********************************************************************
+ *  sia_attempt_auth()
+ *
+ *  Try to authenticate the user using Security Integration Architecture
+ *  (SIA). Added 9/26/98 by Spider Boardman
+ */
+void sia_attempt_auth()
+{
+    SIAENTITY *siah=NULL;
+    int retval;
+    register int counter = TRIES_FOR_PASSWORD;
+
+    set_perms(PERM_ROOT, 0);
+    retval = sia_ses_init(&siah, Argc, Argv, NULL, user_name, ttyname(0),
+			  1, NULL);
+    if (retval != SIASUCCESS) {
+	log_error(BAD_ALLOCATION);
+	inform_user(BAD_ALLOCATION);
+        exit(1);
+    }
+    while (counter > 0) {
+	retval = sia_ses_reauthent(tcollect, siah);
+        if (retval == SIASUCCESS) {
+	    (void) sia_ses_release(&siah);
+            set_perms(PERM_USER, 0);
+            return;
+        }
+
+        --counter;
+#ifdef USE_INSULTS
+        (void) fprintf(stderr, "%s\n", INSULT);
+#else
+        (void) fprintf(stderr, "%s\n", INCORRECT_PASSWORD);
+#endif /* USE_INSULTS */
+    }
+    (void) sia_ses_release(&siah);
+    set_perms(PERM_USER, 0);
+
+    if (counter > 0) {
+        log_error(PASSWORD_NOT_CORRECT);
+        inform_user(PASSWORD_NOT_CORRECT);
+    } else {
+        log_error(PASSWORDS_NOT_CORRECT);
+        inform_user(PASSWORDS_NOT_CORRECT);
+    }
+    exit(1);
+}
+
+#endif /* HAVE_SIA */
-- 
2.40.0