From ab494c1e3eafc27c84c8cf0eb5e5ad8ef37389bc Mon Sep 17 00:00:00 2001
From: Maxim Mamontov <faust.madf@gmail.com>
Date: Wed, 27 Jul 2011 16:16:24 +0300
Subject: [PATCH] crypto.lib is now a plain C library

---
 stglibs/crypto.lib/Makefile                   |  4 +--
 stglibs/crypto.lib/{ag_md5.cpp => ag_md5.c}   |  0
 stglibs/crypto.lib/ag_md5.h                   | 13 ++++++--
 .../crypto.lib/{blowfish.cpp => blowfish.c}   | 30 +++++--------------
 stglibs/crypto.lib/blowfish.h                 |  8 +++++
 5 files changed, 28 insertions(+), 27 deletions(-)
 rename stglibs/crypto.lib/{ag_md5.cpp => ag_md5.c} (100%)
 rename stglibs/crypto.lib/{blowfish.cpp => blowfish.c} (96%)

diff --git a/stglibs/crypto.lib/Makefile b/stglibs/crypto.lib/Makefile
index 7d19fcec..6e83e01e 100644
--- a/stglibs/crypto.lib/Makefile
+++ b/stglibs/crypto.lib/Makefile
@@ -4,8 +4,8 @@
 
 LIB_NAME = stgcrypto
 
-SRCS = ag_md5.cpp \
-	blowfish.cpp
+SRCS = ag_md5.c \
+	blowfish.c
 
 INCS = ag_md5.h \
 	blowfish.h
diff --git a/stglibs/crypto.lib/ag_md5.cpp b/stglibs/crypto.lib/ag_md5.c
similarity index 100%
rename from stglibs/crypto.lib/ag_md5.cpp
rename to stglibs/crypto.lib/ag_md5.c
diff --git a/stglibs/crypto.lib/ag_md5.h b/stglibs/crypto.lib/ag_md5.h
index 9a8b16a0..b278f97b 100644
--- a/stglibs/crypto.lib/ag_md5.h
+++ b/stglibs/crypto.lib/ag_md5.h
@@ -1,10 +1,14 @@
 #ifndef _MD5_H
 #define _MD5_H
 
-#include <ctime>
+#include <time.h>
 
 #include "stg/os_int.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 struct MD5Context {
 	uint32_t buf[4];
 	uint32_t bits[2];
@@ -19,7 +23,6 @@ void MD5Init(struct MD5Context *ctx);
 void MD5Update(struct MD5Context*, char const*, unsigned);
 void MD5Final(unsigned char digest[16], struct MD5Context *ctx);
 void MD5Transform(uint32_t buf[4], uint32_t const in[16]);
-/* static void to64(char*, unsigned long, int); */
 char *libshadow_md5_crypt(const char*, const char*);
 char *pw_encrypt(const char*, const char*);
 
@@ -27,4 +30,8 @@ char *pw_encrypt(const char*, const char*);
 char *make_ag_hash(time_t salt, const char *clear);
 int check_ag_hash(time_t salt, const char *clear, const char *hash);
 
-#endif /* _MD5_H */
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/stglibs/crypto.lib/blowfish.cpp b/stglibs/crypto.lib/blowfish.c
similarity index 96%
rename from stglibs/crypto.lib/blowfish.cpp
rename to stglibs/crypto.lib/blowfish.c
index ad482b79..e11bb1a2 100644
--- a/stglibs/crypto.lib/blowfish.cpp
+++ b/stglibs/crypto.lib/blowfish.c
@@ -5,20 +5,10 @@
  * Description:  C implementation of the Blowfish algorithm.
  */
 
-#include <cstring>
+#include <string.h>
 
-#include "blowfish.h"
 #include "stg/const.h"
-
-/*typedef struct _BCoptions
-    {
-    unsigned char remove;
-    unsigned char standardout;
-    unsigned char compression;
-    unsigned char type;
-    uint32_t origsize;
-    unsigned char securedelete;
-    } BCoptions;*/
+#include "blowfish.h"
 
 #define ENCRYPT 0
 #define DECRYPT 1
@@ -445,28 +435,24 @@ for (i = 0; i < 4; ++i)
     }
 }
 //-----------------------------------------------------------------------------
-void EnDecodeInit(const char * passwd, int, BLOWFISH_CTX *ctx)
+void EnDecodeInit(const char * passwd, int length, BLOWFISH_CTX *ctx)
 {
-unsigned char * keyL = NULL;//[PASSWD_LEN];  // ðÁÒÏÌØ ÄÌÑ ÛÉÆÒÏ×ËÉ
-
-keyL = new unsigned char[PASSWD_LEN];
+unsigned char keyL[PASSWD_LEN];
 
 memset(keyL, 0, PASSWD_LEN);
 
 strncpy((char *)keyL, passwd, PASSWD_LEN);
 
 Blowfish_Init(ctx, keyL, PASSWD_LEN);
-
-delete[] keyL;
 }
 //-----------------------------------------------------------------------------
 // Note: swap bytes order for compatibility with OpenSSL
 uint32_t bytes2block(const char * c)
 {
-    uint32_t t = static_cast<unsigned char>(*c++);
-    t += static_cast<unsigned char>(*c++) << 8;
-    t += static_cast<unsigned char>(*c++) << 16;
-    t += static_cast<unsigned char>(*c) << 24;
+    uint32_t t = (unsigned char)(*c++);
+    t += (unsigned char)(*c++) << 8;
+    t += (unsigned char)(*c++) << 16;
+    t += (unsigned char)(*c) << 24;
     return t;
 }
 //-----------------------------------------------------------------------------
diff --git a/stglibs/crypto.lib/blowfish.h b/stglibs/crypto.lib/blowfish.h
index 45d92110..20f2fff7 100644
--- a/stglibs/crypto.lib/blowfish.h
+++ b/stglibs/crypto.lib/blowfish.h
@@ -12,6 +12,10 @@
 
 #define MAXKEYBYTES 56          /* 448 bits */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef struct {
   uint32_t P[16 + 2];
   uint32_t S[4][256];
@@ -25,5 +29,9 @@ void EnDecodeInit(const char * key, int passwdLen, BLOWFISH_CTX *ctx);
 void DecodeString(char * d, const char * s, BLOWFISH_CTX *ctx);
 void EncodeString(char * d, const char * s, BLOWFISH_CTX *ctx);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif
 
-- 
2.43.2