Interface des.c

4 files changed, 29 insertions, 11 deletions

diff --git a/src/common/core.c b/src/common/core.c
index e6b522926..ce92a77e3 100644
--- a/src/common/core.c
+++ b/src/common/core.c
@@ -2,7 +2,7 @@
  * This file is part of Hercules.
  * http://herc.ws - http://github.com/HerculesWS/Hercules
  *
- * Copyright (C) 2012-2015  Hercules Dev Team
+ * Copyright (C) 2012-2016  Hercules Dev Team
  * Copyright (C)  Athena Dev Teams
  *
  * Hercules is free software: you can redistribute it and/or modify
@@ -25,6 +25,7 @@
 
 #include "common/cbasetypes.h"
 #include "common/console.h"
+#include "common/des.h"
 #include "common/db.h"
 #include "common/memmgr.h"
 #include "common/mmo.h"
@@ -253,6 +254,7 @@ void core_defaults(void) {
 	malloc_defaults();
 	showmsg_defaults();
 	cmdline_defaults();
+	des_defaults();
 #ifndef MINICORE
 	libconfig_defaults();
 	sql_defaults();
diff --git a/src/common/des.c b/src/common/des.c
index ce64309f3..c811dd96c 100644
--- a/src/common/des.c
+++ b/src/common/des.c
@@ -2,7 +2,7 @@
  * This file is part of Hercules.
  * http://herc.ws - http://github.com/HerculesWS/Hercules
  *
- * Copyright (C) 2012-2015  Hercules Dev Team
+ * Copyright (C) 2012-2016  Hercules Dev Team
  * Copyright (C)  Athena Dev Teams
  *
  * Hercules is free software: you can redistribute it and/or modify
@@ -24,6 +24,9 @@
 
 #include "common/cbasetypes.h"
 
+struct des_interface des_s;
+struct des_interface *des;
+
 /// DES (Data Encryption Standard) algorithm, modified version.
 /// @see http://www.eathena.ws/board/index.php?autocom=bugtracker&showbug=5099.
 /// @see http://en.wikipedia.org/wiki/Data_Encryption_Standard
@@ -232,5 +235,12 @@ void des_decrypt(unsigned char* data, size_t size)
 	size_t i;
 
 	for( i = 0; i*8 < size; i += 8 )
-		des_decrypt_block(p);
+		des->decrypt_block(p);
+}
+
+void des_defaults(void)
+{
+	des = &des_s;
+	des->decrypt = des_decrypt;
+	des->decrypt_block = des_decrypt_block;
 }
diff --git a/src/common/des.h b/src/common/des.h
index d62b5cc49..e7460e9fd 100644
--- a/src/common/des.h
+++ b/src/common/des.h
@@ -2,7 +2,7 @@
  * This file is part of Hercules.
  * http://herc.ws - http://github.com/HerculesWS/Hercules
  *
- * Copyright (C) 2012-2015  Hercules Dev Team
+ * Copyright (C) 2012-2016  Hercules Dev Team
  * Copyright (C)  Athena Dev Teams
  *
  * Hercules is free software: you can redistribute it and/or modify
@@ -21,14 +21,20 @@
 #ifndef COMMON_DES_H
 #define COMMON_DES_H
 
-#include "common/cbasetypes.h"
+#include "common/hercules.h"
 
 /// One 64-bit block.
 typedef struct BIT64 { uint8_t b[8]; } BIT64;
 
+struct des_interface {
+	void (*decrypt_block) (BIT64* block);
+	void (*decrypt) (unsigned char* data, size_t size);
+};
+
 #ifdef HERCULES_CORE
-void des_decrypt_block(BIT64* block);
-void des_decrypt(unsigned char* data, size_t size);
+void des_defaults(void);
 #endif // HERCULES_CORE
 
+HPShared struct des_interface *des;
+
 #endif // COMMON_DES_H
diff --git a/src/common/grfio.c b/src/common/grfio.c
index c6e47d357..c24f2aee5 100644
--- a/src/common/grfio.c
+++ b/src/common/grfio.c
@@ -162,7 +162,7 @@ static void grf_decode_header(unsigned char* buf, size_t len)
 
 	// first 20 blocks are all des-encrypted
 	for( i = 0; i < 20 && i < nblocks; ++i )
-		des_decrypt_block(&p[i]);
+		des->decrypt_block(&p[i]);
 
 	// the rest is plaintext, done.
 }
@@ -176,7 +176,7 @@ static void grf_decode_full(unsigned char* buf, size_t len, int cycle)
 
 	// first 20 blocks are all des-encrypted
 	for( i = 0; i < 20 && i < nblocks; ++i )
-		des_decrypt_block(&p[i]);
+		des->decrypt_block(&p[i]);
 
 	// after that only one of every 'dcycle' blocks is des-encrypted
 	dcycle = cycle;
@@ -190,7 +190,7 @@ static void grf_decode_full(unsigned char* buf, size_t len, int cycle)
 	{
 		if( i % dcycle == 0 )
 		{// decrypt block
-			des_decrypt_block(&p[i]);
+			des->decrypt_block(&p[i]);
 			continue;
 		}
 
@@ -504,7 +504,7 @@ static char* decode_filename(unsigned char* buf, int len)
 	int lop;
 	for(lop=0;lop<len;lop+=8) {
 		NibbleSwap(&buf[lop],8);
-		des_decrypt(&buf[lop],8);
+		des->decrypt(&buf[lop],8);
 	}
 	return (char*)buf;
 }