X-Git-Url: http://www.average.org/gitweb/?p=pam_pcsc_cr.git;a=blobdiff_plain;f=gnu_crypto.c;h=5c8621d7f2f55b7aa22b0dc366b3d01f5280e207;hp=190e9e1489494dbb3eb707eafe631b467e407f31;hb=c498f013eeb5a5decd93e5830fa61929e4c650cc;hpb=9cfb078547dfafdb01cfd87c05acffdbc07255ee

diff --git a/gnu_crypto.c b/gnu_crypto.c
index 190e9e1..5c8621d 100644
--- a/gnu_crypto.c
+++ b/gnu_crypto.c
@@ -1,3 +1,26 @@
+/*
+Copyright (c) 2013 Eugene Crosser
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+    1. The origin of this software must not be misrepresented; you must
+    not claim that you wrote the original software. If you use this
+    software in a product, an acknowledgment in the product documentation
+    would be appreciated but is not required.
+
+    2. Altered source versions must be plainly marked as such, and must
+    not be misrepresented as being the original software.
+
+    3. This notice may not be removed or altered from any source
+    distribution.
+*/
+
 #ifdef HAVE_CONFIG_H
 # include "config.h"
 #endif
@@ -13,8 +36,8 @@ static const char *gnu_init(void)
 	return "gcrypt";
 }
 
-static unsigned long gnu_encrypt(void *key, int keylen, void *iv,
-			void *pt, void *ct, int tlen)
+static unsigned long gnu_encrypt(const void *key, const int keylen, void *iv,
+			const void *pt, void *ct, const int tlen)
 {
 	gcry_error_t err;
 	gcry_cipher_hd_t hd;
@@ -33,8 +56,8 @@ static unsigned long gnu_encrypt(void *key, int keylen, void *iv,
 	return 0UL;
 }
 
-static unsigned long gnu_decrypt(void *key, int keylen, void *iv,
-			void *ct, void *pt, int tlen)
+static unsigned long gnu_decrypt(const void *key, const int keylen, void *iv,
+			const void *ct, void *pt, const int tlen)
 {
 	gcry_error_t err;
 	gcry_cipher_hd_t hd;
@@ -53,7 +76,8 @@ static unsigned long gnu_decrypt(void *key, int keylen, void *iv,
 	return 0UL;
 }
 
-static unsigned long gnu_hash(void *pt, int tlen, void *tag, int *taglen)
+static unsigned long gnu_hash(const void *pt, const int tlen,
+			void *tag, int *taglen)
 {
 	gcry_error_t err;
 	gcry_md_hd_t hd;
@@ -71,7 +95,8 @@ static unsigned long gnu_hash(void *pt, int tlen, void *tag, int *taglen)
 	return 0UL;
 }
 
-static unsigned long gnu_hmac(void *key, int keylen, void *pt, int tlen,
+static unsigned long gnu_hmac(const void *key, const int keylen,
+			const void *pt, const int tlen,
 			void *tag, int *taglen)
 {
 	gcry_error_t err;
@@ -93,7 +118,7 @@ static unsigned long gnu_hmac(void *key, int keylen, void *pt, int tlen,
 	return 0UL;
 }
 
-static const char *gnu_errstr(unsigned long err)
+static const char *gnu_errstr(const unsigned long err)
 {
 	return gcry_strerror((gcry_error_t)err);
 }