1 files changed, 115 insertions, 0 deletions
diff --git a/crypto/heimdal/lib/krb5/mk_safe.c b/crypto/heimdal/lib/krb5/mk_safe.c
new file mode 100644
index 0000000..4d848a6
--- /dev/null
+++ b/crypto/heimdal/lib/krb5/mk_safe.c
@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 1997, 1998, 1999 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden). 
+ * 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. 
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors 
+ *    may be used to endorse or promote products derived from this software 
+ *    without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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. 
+ */
+
+#include <krb5_locl.h>
+
+RCSID("$Id: mk_safe.c,v 1.20 1999/12/02 17:05:11 joda Exp $");
+
+krb5_error_code
+krb5_mk_safe(krb5_context context,
+	     krb5_auth_context auth_context,
+	     const krb5_data *userdata,
+	     krb5_data *outbuf,
+	     /*krb5_replay_data*/ void *outdata)
+{
+  krb5_error_code ret;
+  KRB_SAFE s;
+  int32_t sec, usec;
+  KerberosTime sec2;
+  int usec2;
+  u_char *buf = NULL;
+  size_t buf_size;
+  size_t len;
+  int tmp_seq;
+  krb5_crypto crypto;
+
+  s.pvno = 5;
+  s.msg_type = krb_safe;
+
+  s.safe_body.user_data = *userdata;
+  krb5_us_timeofday (context, &sec, &usec);
+
+  sec2                   = sec;
+  s.safe_body.timestamp  = &sec2;
+  usec2                  = usec2;
+  s.safe_body.usec       = &usec2;
+  if (auth_context->flags & KRB5_AUTH_CONTEXT_DO_SEQUENCE) {
+      tmp_seq = ++auth_context->local_seqnumber;
+      s.safe_body.seq_number = &tmp_seq;
+  } else 
+      s.safe_body.seq_number = NULL;
+
+  s.safe_body.s_address = auth_context->local_address;
+  s.safe_body.r_address = auth_context->remote_address;
+
+  s.cksum.cksumtype       = 0;
+  s.cksum.checksum.data   = NULL;
+  s.cksum.checksum.length = 0;
+
+
+  buf_size = length_KRB_SAFE(&s);
+  buf = malloc(buf_size + 128); /* add some for checksum */
+  if(buf == NULL)
+      return ENOMEM;
+  ret = encode_KRB_SAFE (buf + buf_size - 1, buf_size, &s, &len);
+  ret = krb5_crypto_init(context, auth_context->keyblock, 0, &crypto);
+  ret = krb5_create_checksum(context, 
+			     crypto,
+			     KRB5_KU_KRB_SAFE_CKSUM,
+			     buf + buf_size - len,
+			     len,
+			     &s.cksum);
+  krb5_crypto_destroy(context, crypto);
+  if (ret) {
+      free (buf);
+      return ret;
+  }
+
+  buf_size = length_KRB_SAFE(&s);
+  buf = realloc(buf, buf_size);
+  if(buf == NULL)
+      return ENOMEM;
+  
+  ret = encode_KRB_SAFE (buf + buf_size - 1, buf_size, &s, &len);
+  free_Checksum (&s.cksum);
+
+  outbuf->length = len;
+  outbuf->data   = malloc (len);
+  if (outbuf->data == NULL) {
+      free (buf);
+      return ENOMEM;
+  }
+  memcpy (outbuf->data, buf + buf_size - len, len);
+  free (buf);
+  return 0;
+}