diff -urN radiusd-cistron-1.6.3-stable-clean/src/Makefile.osf radiusd-cistron-1.6.3-stable/src/Makefile.osf
--- radiusd-cistron-1.6.3-stable-clean/src/Makefile.osf	Sat Sep 18 17:10:41 1999
+++ radiusd-cistron-1.6.3-stable/src/Makefile.osf	Mon May  8 16:41:15 2000
@@ -5,8 +5,8 @@
 #		if you want to compile for OSF with C2 security
 #
 
-CC	= gcc
-CFLAGS	= -g -Wall -Wno-unused -DNOSHADOW
+CC	= cc
+CFLAGS	= -DOSFSIA -DNOSHADOW
 LDFLAGS	= # -s #tatic
 LIBS	= 
 LCRYPT	=
diff -urN radiusd-cistron-1.6.3-stable-clean/src/auth.c radiusd-cistron-1.6.3-stable/src/auth.c
--- radiusd-cistron-1.6.3-stable-clean/src/auth.c	Thu Apr  6 09:02:31 2000
+++ radiusd-cistron-1.6.3-stable/src/auth.c	Tue May  9 13:19:29 2000
@@ -33,6 +33,11 @@
 #  include	<prot.h>
 #endif
 
+#ifdef OSFSIA
+#  include	<sia.h>
+#  include	<siad.h>
+#endif
+
 #include	"radiusd.h"
 #include	"cache.h"
 
@@ -125,10 +130,40 @@
 #ifdef OSFC2
 	struct pr_passwd *pr_pw;
 #endif
+#ifdef OSFSIA
+	int		errcode;
+	int		(*sia_collect) () = sia_collect_trm;
+	char		*info[2];
+	char		*progname = "radius";
+	SIAENTITY	*ent = NULL;
+#endif
 
 	if (cache_passwd && (ret = H_unix_pass(name, passwd)) != -2)
 		return ret;
 
+#ifdef OSFSIA
+	info[0] = progname;
+	info[1] = NULL;
+	if ((errcode = sia_ses_init (&ent, 1, info, NULL, name, NULL,
+		    FALSE, NULL)) != SIASUCCESS) {
+		/* commented out - don't log unknown users here
+		log(L_AUTH, "sia_ses_init returned %d", errcode);
+		*/
+		return -1;
+	}
+	if ((errcode = sia_ses_authent (sia_collect, passwd, ent)) !=
+		    SIASUCCESS) {
+		/* commented out - don't log password failures here
+		log(L_AUTH, "sia_ses_authent returned %d", errcode);
+		*/
+		return -1;
+	}
+	if ((errcode = sia_ses_release (&ent)) != SIASUCCESS) {
+		log(L_AUTH, "sia_ses_release returned %d", errcode);
+		return -1;
+	}
+	return 0;
+#else /* OSFSIA */
 #ifdef OSFC2
 	if ((pr_pw = getprpwnam(name)) == NULL)
 		return -1;
@@ -236,6 +271,7 @@
 #endif /* ETC_SHELL */
 
 	return 0;
+#endif /* OSFSIA */
 }
 
 
diff -urN radiusd-cistron-1.6.3-stable-clean/src/version.c radiusd-cistron-1.6.3-stable/src/version.c
--- radiusd-cistron-1.6.3-stable-clean/src/version.c	Sun Apr  2 10:58:14 2000
+++ radiusd-cistron-1.6.3-stable/src/version.c	Mon May  8 16:32:01 2000
@@ -61,6 +61,9 @@
 #if defined(OSFC2)
 	fprintf(stderr," OSFC2");
 #endif
+#if defined(OSFSIA)
+	fprintf(stderr," OSFSIA");
+#endif
 #if defined(NT_DOMAIN_HACK)
 	fprintf(stderr," NT_DOMAIN_HACK");
 #endif