--- /dev/null
+/* #ident "@(#)gss_compare_name.c 1.13 95/08/02 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_compare_name
+ *
+ */
+
+#include "mglueP.h"
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#include <string.h>
+
+#define g_OID_equal(o1,o2) \
+ (((o1)->length == (o2)->length) && \
+ (memcmp((o1)->elements,(o2)->elements,(int) (o1)->length) == 0))
+
+OM_uint32 KRB5_CALLCONV
+gss_compare_name (minor_status,
+ name1,
+ name2,
+ name_equal)
+
+OM_uint32 * minor_status;
+gss_name_t name1;
+gss_name_t name2;
+int * name_equal;
+
+{
+ OM_uint32 major_status, temp_minor;
+ gss_union_name_t union_name1, union_name2;
+ gss_mechanism mech;
+ gss_name_t internal_name;
+
+ gss_initialize();
+
+ if (name1 == 0 || name2 == 0) {
+ if (name_equal)
+ *name_equal = 0;
+ return GSS_S_BAD_NAME;
+ }
+
+ union_name1 = (gss_union_name_t) name1;
+ union_name2 = (gss_union_name_t) name2;
+ /*
+ * Try our hardest to make union_name1 be the mechanism-specific
+ * name. (Of course we can't if both names aren't
+ * mechanism-specific.)
+ */
+ if (union_name1->mech_type == 0) {
+ union_name1 = (gss_union_name_t) name2;
+ union_name2 = (gss_union_name_t) name1;
+ }
+ /*
+ * If union_name1 is mechanism specific, then fetch its mechanism
+ * information.
+ */
+ if (union_name1->mech_type) {
+ mech = __gss_get_mechanism (union_name1->mech_type);
+ if (!mech)
+ return (GSS_S_BAD_MECH);
+ if (!mech->gss_compare_name)
+ return (GSS_S_BAD_BINDINGS);
+ }
+
+ if (name_equal == NULL)
+ return GSS_S_COMPLETE;
+
+ *name_equal = 0; /* Default to *not* equal.... */
+
+ /*
+ * First case... both names are mechanism-specific
+ */
+ if (union_name1->mech_type && union_name2->mech_type) {
+ if (!g_OID_equal(union_name1->mech_type, union_name2->mech_type))
+ return (GSS_S_COMPLETE);
+ if ((union_name1->mech_name == 0) || (union_name2->mech_name == 0))
+ /* should never happen */
+ return (GSS_S_BAD_NAME);
+#ifdef USE_MECH_CONTEXT
+ return (mech->gss_compare_name(mech->context, minor_status,
+#else
+ return (mech->gss_compare_name(minor_status,
+#endif
+ union_name1->mech_name,
+ union_name2->mech_name, name_equal));
+
+ }
+
+ /*
+ * Second case... both names are NOT mechanism specific.
+ *
+ * All we do here is make sure the two name_types are equal and then
+ * that the external_names are equal. Note the we do not take care
+ * of the case where two different external names map to the same
+ * internal name. We cannot determine this, since we as yet do not
+ * know what mechanism to use for calling the underlying
+ * gss_import_name().
+ */
+ if (!union_name1->mech_type && !union_name2->mech_type) {
+ if (!g_OID_equal(union_name1->name_type, union_name2->name_type))
+ return (GSS_S_COMPLETE);
+ if ((union_name1->external_name->length !=
+ union_name2->external_name->length) ||
+ (memcmp(union_name1->external_name->value,
+ union_name2->external_name->value,
+ union_name1->external_name->length) != 0))
+ return (GSS_S_COMPLETE);
+ *name_equal = 1;
+ return (GSS_S_COMPLETE);
+ }
+
+ /*
+ * Final case... one name is mechanism specific, the other isn't.
+ *
+ * We attempt to convert the general name to the mechanism type of
+ * the mechanism-specific name, and then do the compare. If we
+ * can't import the general name, then we return that the name is
+ * _NOT_ equal.
+ */
+ if (union_name2->mech_type) {
+ /* We make union_name1 the mechanism specific name. */
+ union_name1 = (gss_union_name_t) name2;
+ union_name2 = (gss_union_name_t) name1;
+ }
+ major_status = __gss_import_internal_name(minor_status,
+ union_name1->mech_type,
+ union_name2,
+ &internal_name);
+ if (major_status != GSS_S_COMPLETE)
+ return (GSS_S_COMPLETE);
+#ifdef USE_MECH_CONTEXT
+ major_status = mech->gss_compare_name(mech->context, minor_status,
+#else
+ major_status = mech->gss_compare_name(minor_status,
+#endif
+ union_name1->mech_name,
+ internal_name, name_equal);
+ __gss_release_internal_name(&temp_minor, union_name1->mech_type,
+ &internal_name);
+ return (major_status);
+
+}
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