consistent use of 'const'

[pam_pcsc_cr.git] / tom_crypto.c

diff --git a/tom_crypto.c b/tom_crypto.c
index fa4fc5dabb0ae3d10a53c5e4753c6210a8cf2447..b5bed3e06d0fe5da41293903ded63b15f281c8dc 100644 (file)
--- a/tom_crypto.c
+++ b/tom_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
 #ifdef HAVE_CONFIG_H
 # include "config.h"
 #endif


@@ -11,8 +34,8 @@ static const char *tom_init(void)
        return "tomcrypt";
 }
 
        return "tomcrypt";
 }
 

-static unsigned long tom_encrypt(void *key, int keylen, void *iv,
-                       void *pt, void *ct, int tlen)
+static unsigned long tom_encrypt(const void *key, const int keylen, void *iv,
+                       const void *pt, void *ct, const int tlen)

 {
        symmetric_CBC cbc;
        int index, err;
 {
        symmetric_CBC cbc;
        int index, err;


@@ -26,8 +49,8 @@ static unsigned long tom_encrypt(void *key, int keylen, void *iv,
        return err;
 }
 
        return err;
 }
 

-static unsigned long tom_decrypt(void *key, int keylen, void *iv,
-                       void *ct, void *pt, int tlen)
+static unsigned long tom_decrypt(const void *key, const int keylen, void *iv,
+                       const void *ct, void *pt, const int tlen)

 {
        symmetric_CBC cbc;
        int index, err;
 {
        symmetric_CBC cbc;
        int index, err;


@@ -41,7 +64,8 @@ static unsigned long tom_decrypt(void *key, int keylen, void *iv,
        return err;
 }
 
        return err;
 }
 

-static unsigned long tom_hash(void *pt, int tlen, void *tag, int *taglen)
+static unsigned long tom_hash(const void *pt, const int tlen,
+                       void *tag, int *taglen)

 {
        int index, rc;
        unsigned long ltaglen = *taglen;
 {
        int index, rc;
        unsigned long ltaglen = *taglen;


@@ -53,8 +77,9 @@ static unsigned long tom_hash(void *pt, int tlen, void *tag, int *taglen)
        return rc;
 }
 
        return rc;
 }
 

-static unsigned long tom_hmac(void *key, int keylen,
-                       void *pt, int tlen, void *tag, int *taglen)
+static unsigned long tom_hmac(const void *key, const int keylen,
+                       const void *pt, const int tlen,
+                       void *tag, int *taglen)

 {
        int index, rc;
        unsigned long ltaglen = *taglen;
 {
        int index, rc;
        unsigned long ltaglen = *taglen;


@@ -66,7 +91,7 @@ static unsigned long tom_hmac(void *key, int keylen,
        return rc;
 }
 
        return rc;
 }
 

-static const char *tom_errstr(unsigned long err)
+static const char *tom_errstr(const unsigned long err)

 {
        return error_to_string((int)err);
 }
 {
        return error_to_string((int)err);
 }