+/* #ident "@(#)g_imp_sec_context.c 1.2 96/01/18 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 gss_export_sec_context
+ */
+
+#include "mglueP.h"
+#include <stdio.h>
+#include <errno.h>
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#include <string.h>
+
+OM_uint32 KRB5_CALLCONV
+gss_import_sec_context(minor_status,
+ interprocess_token,
+ context_handle)
+
+OM_uint32 * minor_status;
+gss_buffer_t interprocess_token;
+gss_ctx_id_t * context_handle;
+
+{
+ size_t length;
+ OM_uint32 status;
+ char *p;
+ gss_union_ctx_id_t ctx;
+ gss_buffer_desc token;
+ gss_mechanism mech;
+
+ gss_initialize();
+
+ *minor_status = 0;
+
+ if (interprocess_token->length == 0 || interprocess_token->value == 0)
+ return (GSS_S_DEFECTIVE_TOKEN);
+
+ status = GSS_S_FAILURE;
+
+ ctx = (gss_union_ctx_id_t) malloc(sizeof(gss_union_ctx_id_desc));
+ if (!ctx) {
+ *minor_status = ENOMEM;
+ goto error_out;
+ }
+ ctx->mech_type = (gss_OID) malloc(sizeof(gss_OID_desc));
+ if (!ctx->mech_type) {
+ *minor_status = ENOMEM;
+ goto error_out;
+ }
+ p = interprocess_token->value;
+ length = *p++;
+ length = (length << 8) + *p++;
+ length = (length << 8) + *p++;
+ length = (length << 8) + *p++;
+
+ ctx->mech_type->length = length;
+ ctx->mech_type->elements = malloc(length);
+ if (!ctx->mech_type->elements) {
+ *minor_status = ENOMEM;
+ goto error_out;
+ }
+ memcpy(ctx->mech_type->elements, p, length);
+ p += length;
+
+ token.length = interprocess_token->length - 4 - length;
+ token.value = p;
+
+ /*
+ * select the approprate underlying mechanism routine and
+ * call it.
+ */
+
+ mech = __gss_get_mechanism (ctx->mech_type);
+ if (!mech) {
+ status = GSS_S_BAD_MECH;
+ goto error_out;
+ }
+ if (!mech->gss_import_sec_context) {
+ status = GSS_S_BAD_BINDINGS;
+ goto error_out;
+ }
+
+#ifdef USE_MECH_CONTEXT
+ status = mech->gss_import_sec_context(mech->context, minor_status,
+#else
+ status = mech->gss_import_sec_context(minor_status,
+#endif
+ &token, &ctx->internal_ctx_id);
+
+ if (status == GSS_S_COMPLETE) {
+ *context_handle = ctx;
+ return (GSS_S_COMPLETE);
+ }
+
+error_out:
+ if (ctx) {
+ if (ctx->mech_type) {
+ if (ctx->mech_type->elements)
+ free(ctx->mech_type->elements);
+ free(ctx->mech_type);
+ }
+ free(ctx);
+ }
+ return status;
+}