diff libtomcrypt/src/pk/asn1/der/boolean/der_decode_boolean.c @ 415:8b9aba1d5fa4 channel-fix

merge of '73fe066c5d9e2395354ba74756124d45c978a04d' and 'f5014cc84558f1e8eba42dbecf9f72f94bfe6134'
author Matt Johnston <matt@ucc.asn.au>
date Tue, 06 Feb 2007 16:00:18 +0000
parents 0cbe8f6dbf9e
children f849a5ca2efc
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libtomcrypt/src/pk/asn1/der/boolean/der_decode_boolean.c	Tue Feb 06 16:00:18 2007 +0000
@@ -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, [email protected], 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 $ */