1 files changed, 77 insertions, 0 deletions
diff --git a/lib/libgssapi/gss_export_sec_context.c b/lib/libgssapi/gss_export_sec_context.c
new file mode 100644
index 0000000..a7e9b8a
--- /dev/null
+++ b/lib/libgssapi/gss_export_sec_context.c
@@ -0,0 +1,77 @@
+/*-
+ * Copyright (c) 2005 Doug Rabson
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND 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 THE AUTHOR OR 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.
+ *
+ *	$FreeBSD$
+ */
+
+#include <gssapi/gssapi.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#include "mech_switch.h"
+#include "context.h"
+
+OM_uint32
+gss_export_sec_context(OM_uint32 *minor_status,
+    gss_ctx_id_t *context_handle,
+    gss_buffer_t interprocess_token)
+{
+	OM_uint32 major_status;
+	struct _gss_context *ctx = (struct _gss_context *) *context_handle;
+	struct _gss_mech_switch *m = ctx->gc_mech;
+	gss_buffer_desc buf;
+
+	major_status = m->gm_export_sec_context(minor_status,
+	    &ctx->gc_ctx, &buf);
+	
+	if (major_status == GSS_S_COMPLETE) {
+		unsigned char *p;
+
+		free(ctx);
+		*context_handle = GSS_C_NO_CONTEXT;
+		interprocess_token->length = buf.length
+			+ 2 + m->gm_mech_oid.length;
+		interprocess_token->value = malloc(interprocess_token->length);
+		if (!interprocess_token->value) {
+			/*
+			 * We are in trouble here - the context is
+			 * already gone. This is allowed as long as we
+			 * set the caller's context_handle to
+			 * GSS_C_NO_CONTEXT, which we did above.
+			 * Return GSS_S_FAILURE.
+			 */
+			*minor_status = ENOMEM;
+			return (GSS_S_FAILURE);
+		}
+		p = interprocess_token->value;
+		p[0] = m->gm_mech_oid.length >> 8;
+		p[1] = m->gm_mech_oid.length;
+		memcpy(p + 2, m->gm_mech_oid.elements, m->gm_mech_oid.length);
+		memcpy(p + 2 + m->gm_mech_oid.length, buf.value, buf.length);
+		gss_release_buffer(minor_status, &buf);
+	}
+
+	return (major_status);
+}