4 files changed, 34 insertions, 0 deletions
diff --git a/utils/gssd/gss_util.c b/utils/gssd/gss_util.c
index f62a87b..d316b4d 100644
--- a/utils/gssd/gss_util.c
+++ b/utils/gssd/gss_util.c
@@ -224,3 +224,28 @@ gssd_acquire_cred(char *server_name)
 
 	return (maj_stat == GSS_S_COMPLETE);
 }
+
+int gssd_check_mechs(void)
+{
+	u_int32_t maj_stat, min_stat;
+	gss_OID_set supported_mechs = GSS_C_NO_OID_SET;
+	int retval = -1;
+
+	maj_stat = gss_indicate_mechs(&min_stat, &supported_mechs);
+	if (maj_stat != GSS_S_COMPLETE) {
+		printerr(0, "Unable to obtain list of supported mechanisms. "
+			 "Check that gss library is properly configured.\n");
+		goto out;
+	}
+	if (supported_mechs == GSS_C_NO_OID_SET ||
+	    supported_mechs->count == 0) {
+		printerr(0, "Unable to obtain list of supported mechanisms. "
+			 "Check that gss library is properly configured.\n");
+		goto out;
+	}
+	maj_stat = gss_release_oid_set(&min_stat, &supported_mechs);
+	retval = 0;
+out:
+	return retval;
+}
+
diff --git a/utils/gssd/gss_util.h b/utils/gssd/gss_util.h
index 9e480ac..bfe8c4a 100644
--- a/utils/gssd/gss_util.h
+++ b/utils/gssd/gss_util.h
@@ -40,5 +40,6 @@ extern gss_cred_id_t	gssd_creds;
 int gssd_acquire_cred(char *server_name);
 void pgsserr(char *msg, u_int32_t maj_stat, u_int32_t min_stat,
 	const gss_OID mech);
+int gssd_check_mechs(void);
 
 #endif /* _GSS_UTIL_H_ */
diff --git a/utils/gssd/gssd.c b/utils/gssd/gssd.c
index 8e9c72a..d6ddaae 100644
--- a/utils/gssd/gssd.c
+++ b/utils/gssd/gssd.c
@@ -145,6 +145,9 @@ main(int argc, char *argv[])
 			    "support setting debug level\n");
 #endif
 
+	if (gssd_check_mechs() != 0)
+		errx(1, "Problem with gssapi library");
+
 	if (!fg && daemon(0, 0) < 0)
 		errx(1, "fork");
 
diff --git a/utils/gssd/svcgssd.c b/utils/gssd/svcgssd.c
index 4e0806c..0db3762 100644
--- a/utils/gssd/svcgssd.c
+++ b/utils/gssd/svcgssd.c
@@ -204,6 +204,11 @@ main(int argc, char *argv[])
 			    "support setting debug level\n");
 #endif
 
+	if (gssd_check_mechs() != 0) {
+		printerr(0, "ERROR: Problem with gssapi library\n");
+		exit(1);
+	}
+
 	if (!fg)
 		mydaemon(0, 0);