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#ifndef __COMMON_H__
#define __COMMON_H__
#ifdef _WIN32
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <winsock.h>
#pragma comment (lib,"ws2_32.lib")
#define int64_t __int64
#else
#include <sys/socket.h>
#include <netinet/ip.h>
#include <arpa/inet.h>
#include <string.h>
typedef int SOCKET;
#define closesocket close
typedef int BOOL;
#define TRUE 1
#define FALSE 0
#endif
#ifdef DEBUG
#include <stdio.h>
#define DBGPRINT printf
#else
#define DBGPRINT
#endif
/* Use Skype 5+ Diffie-Hellmann RC4 wrapped login comunication.
* Fortunately Login servers also still work without it too.
* To keep library small and clean, we keep it disabled too,
* but you can enable it if you want.
*/
//#define USE_RC4
#ifdef CRYPT_WOLFSSL
#include "wolfssl.h"
#else
#include <openssl/md5.h>
#include <openssl/aes.h>
#include <openssl/rsa.h>
#include <openssl/sha.h>
#include <openssl/err.h>
#ifdef USE_RC4
#include <openssl/rc4.h>
#include <openssl/dh.h>
#endif
#endif
typedef unsigned char uchar;
typedef unsigned short ushort;
typedef unsigned int uint;
typedef unsigned long ulong;
#define MAX_IP_LEN 15
#define HTTPS_PORT 443
#define NODEID_SZ 8
#define HANDSHAKE_SZ 0x05
#define CONCAT_SALT "\nskyper\n"
#define KEYSZ 0x200
#define SK_SZ 0xC0
#define MODULUS_SZ 0x80
#define HTTPS_HSR_MAGIC "\x16\x03\x01"
#define HTTPS_HSRR_MAGIC "\x17\x03\x01"
#define LOGIN_OK 4200
#define RAW_PARAMS 0x41
#define EXT_PARAMS 0x42
#define VER_STR "0/7.44.0.104"
typedef struct
{
char ip[MAX_IP_LEN + 1];
int port;
} Host;
typedef struct
{
uchar *Memory;
unsigned long MsZ;
} Memory_U;
typedef struct
{
uchar *User;
uchar LoginHash[MD5_DIGEST_LENGTH];
uint Expiry;
RSA *RSAKeys;
//Memory_U Modulus;
Memory_U SignedCredentials;
} SLoginDatas;
typedef struct
{
uchar SessionKey[SK_SZ];
uchar NodeID[NODEID_SZ];
uchar Language[2];
uint PublicIP;
SLoginDatas LoginD;
int (__cdecl *pfLog)(void *stream, const char *format, ...);
void *pLogStream;
} Skype_Inst;
typedef struct
{
SOCKET LSSock;
#ifdef USE_RC4
RC4_KEY rc4_send;
RC4_KEY rc4_recv;
#endif
} LSConnection;
#pragma pack(1)
typedef struct
{
unsigned char MAGIC[3];
unsigned short ResponseLen;
} HttpsPacketHeader;
#pragma pack()
extern char *SkypeModulus1536[];
char *KeySelect(uint KeyIndex);
#endif
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