vendor/krb5/1.15.1

1 files changed, 81 insertions, 0 deletions

diff --git a/src/lib/gssapi/mechglue/g_prf.c b/src/lib/gssapi/mechglue/g_prf.c
new file mode 100644
index 000000000000..fcca3e44c4c0
--- /dev/null
+++ b/src/lib/gssapi/mechglue/g_prf.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2009 by the Massachusetts Institute of Technology.
+ * All Rights Reserved.
+ *
+ * Export of this software from the United States of America may
+ *   require a specific license from the United States Government.
+ *   It is the responsibility of any person or organization contemplating
+ *   export to obtain such a license before exporting.
+ *
+ * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
+ * distribute this software and its documentation for any purpose and
+ * without fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright notice and
+ * this permission notice appear in supporting documentation, and that
+ * the name of M.I.T. not be used in advertising or publicity pertaining
+ * to distribution of the software without specific, written prior
+ * permission.  Furthermore if you modify this software you must label
+ * your software as modified software and not distribute it in such a
+ * fashion that it might be confused with the original M.I.T. software.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose.  It is provided "as is" without express
+ * or implied warranty.
+ */
+
+/* Glue routine for gss_pseudo_random */
+
+#include "mglueP.h"
+
+OM_uint32 KRB5_CALLCONV
+gss_pseudo_random (OM_uint32 *minor_status,
+	           gss_ctx_id_t context_handle,
+	           int prf_key,
+	           const gss_buffer_t prf_in,
+	           ssize_t desired_output_len,
+	           gss_buffer_t prf_out)
+{
+    OM_uint32		status;
+    gss_union_ctx_id_t	ctx;
+    gss_mechanism	mech;
+
+    if (minor_status == NULL)
+	return GSS_S_CALL_INACCESSIBLE_WRITE;
+
+    if (context_handle == GSS_C_NO_CONTEXT)
+	return GSS_S_CALL_INACCESSIBLE_READ | GSS_S_NO_CONTEXT;
+
+    if (prf_in == GSS_C_NO_BUFFER)
+	return GSS_S_CALL_INACCESSIBLE_READ | GSS_S_NO_CONTEXT;
+
+    if (prf_out == GSS_C_NO_BUFFER)
+	return GSS_S_CALL_INACCESSIBLE_WRITE | GSS_S_NO_CONTEXT;
+
+    prf_out->length = 0;
+    prf_out->value = NULL;
+
+    /*
+     * select the approprate underlying mechanism routine and
+     * call it.
+     */
+
+    ctx = (gss_union_ctx_id_t) context_handle;
+    mech = gssint_get_mechanism (ctx->mech_type);
+
+    if (mech != NULL) {
+	if (mech->gss_pseudo_random != NULL) {
+	    status = mech->gss_pseudo_random(minor_status,
+					     ctx->internal_ctx_id,
+					     prf_key,
+					     prf_in,
+					     desired_output_len,
+					     prf_out);
+	    if (status != GSS_S_COMPLETE)
+		map_error(minor_status, mech);
+	} else
+	    status = GSS_S_UNAVAILABLE;
+
+	return status;
+    }
+
+    return GSS_S_BAD_MECH;
+}