indicate mechs (for now)

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@17753 ec53bebd-3082-4978-b11e-865c3cabbd6b

lib/gssapi/gss.c

@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2006 Kungliga Tekniska H<>gskolan
+ * (Royal Institute of Technology, Stockholm, Sweden). 
+ * All rights reserved. 
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions 
+ * are met: 
+ *
+ * 1. Redistributions of source code must retain the above copyright 
+ *    notice, this list of conditions and the following disclaimer. 
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright 
+ *    notice, this list of conditions and the following disclaimer in the 
+ *    documentation and/or other materials provided with the distribution. 
+ *
+ * 3. Neither the name of KTH nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software without
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <gssapi.h>
+#include <err.h>
+#include <roken.h>
+#include <getarg.h>
+#include <rtbl.h>
+
+RCSID("$Id$");
+
+static int version_flag = 0;
+static int help_flag	= 0;
+
+static struct getargs args[] = {
+    {"version",	0,	arg_flag,	&version_flag, "print version", NULL },
+    {"help",	0,	arg_flag,	&help_flag,  NULL, NULL }
+};
+
+static void
+usage (int ret)
+{
+    arg_printusage (args, sizeof(args)/sizeof(*args),
+		    NULL, "service@host");
+    exit (ret);
+}
+
+#define COL_OID		"OID"
+#define COL_NAME	"Name"
+
+static void
+supported_mechs(void)
+{
+    OM_uint32 maj_stat, min_stat;
+    gss_OID_set mechs;
+    rtbl_t ct;
+    size_t i;
+
+    maj_stat = gss_indicate_mechs(&min_stat, &mechs);
+    if (maj_stat != GSS_S_COMPLETE)
+	errx(1, "gss_indicate_mechs failed");
+
+    printf("Supported mechanisms:\n");
+
+    ct = rtbl_create();
+    if (ct == NULL)
+	errx(1, "rtbl_create");
+
+    rtbl_set_separator(ct, "  ");
+    rtbl_add_column(ct, COL_OID, 0);
+    rtbl_add_column(ct, COL_NAME, 0);
+
+    for (i = 0; i < mechs->count; i++) {
+	gss_buffer_desc name;
+
+	maj_stat = gss_oid_to_str(&min_stat, &mechs->elements[i], &name);
+	if (maj_stat != GSS_S_COMPLETE)
+	    errx(1, "gss_oid_to_str failed");
+
+	rtbl_add_column_entryv(ct, COL_OID, "%.*s",
+			       (int)name.length, (char *)name.value);
+	gss_release_buffer(&min_stat, &name);
+
+	if (gss_oid_equal(&mechs->elements[i], GSS_KRB5_MECHANISM))
+	    rtbl_add_column_entry(ct, COL_NAME, "Kerberos 5");
+	else if (gss_oid_equal(&mechs->elements[i], GSS_SPNEGO_MECHANISM))
+	    rtbl_add_column_entry(ct, COL_NAME, "SPNEGO");
+    }
+    gss_release_oid_set(&min_stat, &mechs);
+
+    rtbl_format(ct, stdout);
+    rtbl_destroy(ct);
+}
+
+int
+main(int argc, char **argv)
+{
+    int optidx = 0;
+
+    setprogname(argv[0]);
+    if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
+	usage(1);
+    
+    if (help_flag)
+	usage (0);
+
+    if(version_flag){
+	print_version(NULL);
+	exit(0);
+    }
+
+    argc -= optidx;
+    argv += optidx;
+
+    supported_mechs();
+
+    return 0;
+}