propagate from branch 'au.asn.ucc.matt.ltc.orig' (head 52840647ac7f5c707c3bd158d119a15734a7ef28)

            to branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)

--HG--
branch : libtomcrypt-dropbear
extra : convert_revision : 2af22fb4e878750b88f80f90d439b316d229796f

1 files changed, 47 insertions, 0 deletions

diff --git a/src/pk/asn1/der/boolean/der_decode_boolean.c b/src/pk/asn1/der/boolean/der_decode_boolean.c
new file mode 100644
index 0000000..7259e51
--- /dev/null
+++ b/src/pk/asn1/der/boolean/der_decode_boolean.c
@@ -0,0 +1,47 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ *
+ * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
+ */
+#include "tomcrypt.h"
+
+/**
+  @file der_decode_boolean.c
+  ASN.1 DER, decode a BOOLEAN, Tom St Denis
+*/
+
+
+#ifdef LTC_DER
+
+/**
+  Read a BOOLEAN
+  @param in      The destination for the DER encoded BOOLEAN
+  @param inlen   The size of the DER BOOLEAN
+  @param out     [out]  The boolean to decode
+  @return CRYPT_OK if successful
+*/
+int der_decode_boolean(const unsigned char *in, unsigned long inlen,
+                                       int *out)
+{
+   LTC_ARGCHK(in  != NULL);
+   LTC_ARGCHK(out != NULL);
+   
+   if (inlen != 3 || in[0] != 0x01 || in[1] != 0x01 || (in[2] != 0x00 && in[2] != 0xFF)) {
+      return CRYPT_INVALID_ARG;
+   }
+   
+   *out = (in[2]==0xFF) ? 1 : 0;
+   
+   return CRYPT_OK;
+}
+
+#endif
+
+/* $Source: /cvs/libtom/libtomcrypt/src/pk/asn1/der/boolean/der_decode_boolean.c,v $ */
+/* $Revision: 1.1 $ */
+/* $Date: 2006/04/22 17:01:59 $ */