Add gss support from citi @ umich

[nfs-utils.git] / support / gssapi / g_indicate_mechs.c

diff --git a/support/gssapi/g_indicate_mechs.c b/support/gssapi/g_indicate_mechs.c
new file mode 100644 (file)
index 0000000..9006d6d
--- /dev/null
+++ b/support/gssapi/g_indicate_mechs.c
@@ -0,0 +1,90 @@
+/* #ident  "@(#)gss_indicate_mechs.c 1.13     95/08/04 SMI" */
+
+/*
+ * Copyright 1996 by Sun Microsystems, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appears in all copies and
+ * that both that copyright notice and this permission notice appear in
+ * supporting documentation, and that the name of Sun Microsystems not be used
+ * in advertising or publicity pertaining to distribution of the software
+ * without specific, written prior permission. Sun Microsystems makes no
+ * representations about the suitability of this software for any
+ * purpose.  It is provided "as is" without express or implied warranty.
+ *
+ * SUN MICROSYSTEMS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL SUN MICROSYSTEMS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+ * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ *  glue routine for gss_indicate_mechs
+ */
+
+#include "mglueP.h"
+#include <stdio.h>
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#include <string.h>
+
+extern gss_mechanism *__gss_mechs_array;
+
+static gss_OID_set_desc        supported_mechs_desc;
+static gss_OID_set supported_mechs = NULL;
+
+OM_uint32 KRB5_CALLCONV
+gss_indicate_mechs (minor_status,
+                    mech_set)
+
+OM_uint32 *            minor_status;
+gss_OID_set *          mech_set;
+
+{
+    int i;
+
+    gss_initialize();
+
+    if (minor_status)
+       *minor_status = 0;
+
+    /*
+     * If we have already computed the mechanisms supported, return
+     * a pointer to it. Otherwise, compute them and return the pointer.
+     */
+
+    if(supported_mechs == NULL) {
+
+       supported_mechs = &supported_mechs_desc;
+       supported_mechs->count = 0;
+
+       /* Build the mech_set from the OIDs in mechs_array. */
+
+       for(i=0; __gss_mechs_array[i]->mech_type.length != 0; i++)
+           supported_mechs->count++;
+
+       supported_mechs->elements =
+           (void *) malloc(supported_mechs->count *
+                           sizeof(gss_OID_desc));
+
+       for(i=0; i < supported_mechs->count; i++) {
+           supported_mechs->elements[i].length =
+               __gss_mechs_array[i]->mech_type.length;
+           supported_mechs->elements[i].elements = (void *)
+               malloc(__gss_mechs_array[i]->mech_type.length);
+           memcpy(supported_mechs->elements[i].elements,
+                  __gss_mechs_array[i]->mech_type.elements,
+                  __gss_mechs_array[i]->mech_type.length);
+       }
+    }
+
+    if(mech_set != NULL)
+       *mech_set = supported_mechs;
+
+    return(GSS_S_COMPLETE);
+}