1 files changed, 111 insertions, 0 deletions
diff --git a/crypto/heimdal/lib/asn1/der_length.c b/crypto/heimdal/lib/asn1/der_length.c
new file mode 100644
index 0000000..5db95ba
--- /dev/null
+++ b/crypto/heimdal/lib/asn1/der_length.c
@@ -0,0 +1,111 @@
+/*
+ * 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 "der_locl.h"
+
+RCSID("$Id: der_length.c,v 1.10 1999/12/02 17:05:01 joda Exp $");
+
+static size_t
+length_unsigned (unsigned val)
+{
+  size_t ret = 0;
+
+  do {
+    ++ret;
+    val /= 256;
+  } while (val);
+  return ret;
+}
+
+static size_t
+length_int (int val)
+{
+  size_t ret = 0;
+
+  if (val == 0)
+    return 1;
+  while (val > 255 || val < -255) {
+    ++ret;
+    val /= 256;
+  }
+  if (val != 0) {
+    ++ret;
+    if ((signed char)val != val)
+      ++ret;
+    val /= 256;
+  }
+  return ret;
+}
+
+size_t
+length_len (size_t len)
+{
+  if (len < 128)
+    return 1;
+  else
+    return length_unsigned (len) + 1;
+}
+
+size_t
+length_integer (const int *data)
+{
+  size_t len = length_int (*data);
+
+  return 1 + length_len(len) + len;
+}
+
+size_t
+length_general_string (const general_string *data)
+{
+  char *str = *data;
+  size_t len = strlen(str);
+  return 1 + length_len(len) + len;
+}
+
+size_t
+length_octet_string (const octet_string *k)
+{
+  return 1 + length_len(k->length) + k->length;
+}
+
+size_t
+length_generalized_time (const time_t *t)
+{
+  octet_string k;
+  size_t ret;
+
+  time2generalizedtime (*t, &k);
+  ret = 1 + length_len(k.length) + k.length;
+  free (k.data);
+  return ret;
+}