Update md5 routines

XySSL 0.9 was released; sync our code with the upstream source. Note that
there weren't any real changes besides renaming of macros, so nothing much
to see here.

The biggest change may be the licence- it is now GPL/BSD software rather
than LGPL/BSD. The license header is changed to reflect this.

Signed-off-by: Dan McGee <dan@archlinux.org>

2 files changed, 51 insertions, 64 deletions

diff --git a/lib/libalpm/md5.c b/lib/libalpm/md5.c
index 4c903895..1923242a 100644
--- a/lib/libalpm/md5.c
+++ b/lib/libalpm/md5.c
@@ -3,14 +3,15 @@
  *
  *  Copyright (C) 2006-2007  Christophe Devine
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License, version 2.1 as published by the Free Software Foundation.
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
  *
- *  This library is distributed in the hope that it will be useful,
+ *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU Lesser General Public
  *  License along with this library.  If not, see
@@ -25,8 +26,9 @@
  *  Pacman Notes:
  *
  *  Taken from the XySSL project at www.xyssl.org under terms of the
- *  LGPL. This is from version 0.7 of the library, and has been modified
+ *  GPL. This is from version 0.9 of the library, and has been modified
  *  as following, which may be helpful for future updates:
+ *  * remove "xyssl/config.h" include
  *  * change include from "xyssl/md5.h" to "md5.h"
  *  * removal of HMAC code
  *  * removal of SELF_TEST code
@@ -35,12 +37,9 @@
  *        int md5_file( char *path, unsigned char *output )
  *      to
  *        int md5_file( const char *path, unsigned char *output )
+ *  * various static/inline changes
  */
 
-#ifndef _CRT_SECURE_NO_DEPRECATE
-#define _CRT_SECURE_NO_DEPRECATE 1
-#endif
-
 #include <string.h>
 #include <stdio.h>
 
@@ -49,8 +48,8 @@
 /*
  * 32-bit integer manipulation macros (little endian)
  */
-#ifndef GET_UINT32_LE
-#define GET_UINT32_LE(n,b,i)                            \
+#ifndef GET_ULONG_LE
+#define GET_ULONG_LE(n,b,i)                             \
 {                                                       \
     (n) = ( (unsigned long) (b)[(i)    ]       )        \
         | ( (unsigned long) (b)[(i) + 1] <<  8 )        \
@@ -59,8 +58,8 @@
 }
 #endif
 
-#ifndef PUT_UINT32_LE
-#define PUT_UINT32_LE(n,b,i)                            \
+#ifndef PUT_ULONG_LE
+#define PUT_ULONG_LE(n,b,i)                             \
 {                                                       \
     (b)[(i)    ] = (unsigned char) ( (n)       );       \
     (b)[(i) + 1] = (unsigned char) ( (n) >>  8 );       \
@@ -87,22 +86,22 @@ static inline void md5_process( md5_context *ctx, unsigned char data[64] )
 {
     unsigned long X[16], A, B, C, D;
 
-    GET_UINT32_LE( X[ 0], data,  0 );
-    GET_UINT32_LE( X[ 1], data,  4 );
-    GET_UINT32_LE( X[ 2], data,  8 );
-    GET_UINT32_LE( X[ 3], data, 12 );
-    GET_UINT32_LE( X[ 4], data, 16 );
-    GET_UINT32_LE( X[ 5], data, 20 );
-    GET_UINT32_LE( X[ 6], data, 24 );
-    GET_UINT32_LE( X[ 7], data, 28 );
-    GET_UINT32_LE( X[ 8], data, 32 );
-    GET_UINT32_LE( X[ 9], data, 36 );
-    GET_UINT32_LE( X[10], data, 40 );
-    GET_UINT32_LE( X[11], data, 44 );
-    GET_UINT32_LE( X[12], data, 48 );
-    GET_UINT32_LE( X[13], data, 52 );
-    GET_UINT32_LE( X[14], data, 56 );
-    GET_UINT32_LE( X[15], data, 60 );
+    GET_ULONG_LE( X[ 0], data,  0 );
+    GET_ULONG_LE( X[ 1], data,  4 );
+    GET_ULONG_LE( X[ 2], data,  8 );
+    GET_ULONG_LE( X[ 3], data, 12 );
+    GET_ULONG_LE( X[ 4], data, 16 );
+    GET_ULONG_LE( X[ 5], data, 20 );
+    GET_ULONG_LE( X[ 6], data, 24 );
+    GET_ULONG_LE( X[ 7], data, 28 );
+    GET_ULONG_LE( X[ 8], data, 32 );
+    GET_ULONG_LE( X[ 9], data, 36 );
+    GET_ULONG_LE( X[10], data, 40 );
+    GET_ULONG_LE( X[11], data, 44 );
+    GET_ULONG_LE( X[12], data, 48 );
+    GET_ULONG_LE( X[13], data, 52 );
+    GET_ULONG_LE( X[14], data, 56 );
+    GET_ULONG_LE( X[15], data, 60 );
 
 #define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
 
@@ -250,7 +249,7 @@ static inline void md5_update( md5_context *ctx, unsigned char *input, int ilen
     }
 }
 
-static unsigned char md5_padding[64] =
+static const unsigned char md5_padding[64] =
 {
  0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -261,7 +260,7 @@ static unsigned char md5_padding[64] =
 /*
  * MD5 final digest
  */
-static inline void md5_finish( md5_context *ctx, unsigned char *output )
+static inline void md5_finish( md5_context *ctx, unsigned char output[16] )
 {
     unsigned long last, padn;
     unsigned long high, low;
@@ -271,8 +270,8 @@ static inline void md5_finish( md5_context *ctx, unsigned char *output )
          | ( ctx->total[1] <<  3 );
     low  = ( ctx->total[0] <<  3 );
 
-    PUT_UINT32_LE( low,  msglen, 0 );
-    PUT_UINT32_LE( high, msglen, 4 );
+    PUT_ULONG_LE( low,  msglen, 0 );
+    PUT_ULONG_LE( high, msglen, 4 );
 
     last = ctx->total[0] & 0x3F;
     padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
@@ -280,17 +279,16 @@ static inline void md5_finish( md5_context *ctx, unsigned char *output )
     md5_update( ctx, (unsigned char *) md5_padding, padn );
     md5_update( ctx, msglen, 8 );
 
-    PUT_UINT32_LE( ctx->state[0], output,  0 );
-    PUT_UINT32_LE( ctx->state[1], output,  4 );
-    PUT_UINT32_LE( ctx->state[2], output,  8 );
-    PUT_UINT32_LE( ctx->state[3], output, 12 );
+    PUT_ULONG_LE( ctx->state[0], output,  0 );
+    PUT_ULONG_LE( ctx->state[1], output,  4 );
+    PUT_ULONG_LE( ctx->state[2], output,  8 );
+    PUT_ULONG_LE( ctx->state[3], output, 12 );
 }
 
 /*
- * Output = MD5( input buffer )
+ * output = MD5( input buffer )
  */
-void md5( unsigned char *input, int ilen,
-          unsigned char *output )
+void md5( unsigned char *input, int ilen, unsigned char output[16] )
 {
     md5_context ctx;
 
@@ -302,9 +300,9 @@ void md5( unsigned char *input, int ilen,
 }
 
 /*
- * Output = MD5( file contents )
+ * output = MD5( file contents )
  */
-int md5_file( const char *path, unsigned char *output )
+int md5_file( const char *path, unsigned char output[16] )
 {
     FILE *f;
     size_t n;
diff --git a/lib/libalpm/md5.h b/lib/libalpm/md5.h
index d206e463..25b4ff58 100644
--- a/lib/libalpm/md5.h
+++ b/lib/libalpm/md5.h
@@ -3,14 +3,15 @@
  *
  *  Copyright (C) 2006-2007  Christophe Devine
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License, version 2.1 as published by the Free Software Foundation.
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
  *
- *  This library is distributed in the hope that it will be useful,
+ *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU Lesser General Public
  *  License along with this library.  If not, see
@@ -20,12 +21,7 @@
 #ifndef _MD5_H
 #define _MD5_H
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 /**
- * \internal
  * \brief          MD5 context structure
  */
 typedef struct
@@ -37,18 +33,15 @@ typedef struct
 md5_context;
 
 /**
- * \internal
  * \brief          Output = MD5( input buffer )
  *
  * \param input    buffer holding the  data
  * \param ilen     length of the input data
  * \param output   MD5 checksum result
  */
-void md5( unsigned char *input, int ilen,
-          unsigned char *output );
+void md5( unsigned char *input, int ilen, unsigned char output[16] );
 
 /**
- * \internal
  * \brief          Output = MD5( file contents )
  *
  * \param path     input file name
@@ -57,10 +50,6 @@ void md5( unsigned char *input, int ilen,
  * \return         0 if successful, 1 if fopen failed,
  *                 or 2 if fread failed
  */
-int md5_file( const char *path, unsigned char *output );
-
-#ifdef __cplusplus
-}
-#endif
+int md5_file( const char *path, unsigned char output[16] );
 
 #endif /* md5.h */