proxychains-ng/src/core.h

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/***************************************************************************
core.h - description
-------------------
begin : Tue May 14 2002
copyright : netcreature (C) 2002
email : netcreature@users.sourceforge.net
***************************************************************************
***************************************************************************
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* *
* 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. *
* *
***************************************************************************/
#include <unistd.h>
#include <stdint.h>
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#include <netinet/in.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
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#ifndef __CORE_HEADER
#define __CORE_HEADER
#define BUFF_SIZE 8*1024 // used to read responses from proxies.
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#define MAX_LOCALNET 64
#include "ip_type.h"
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/*error codes*/
typedef enum {
SUCCESS=0,
MEMORY_FAIL, // malloc failed
SOCKET_ERROR, // look errno for more
CHAIN_DOWN, // no proxy in chain responds to tcp
CHAIN_EMPTY, // if proxy_count = 0
BLOCKED // target's port blocked on last proxy in the chain
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} ERR_CODE;
typedef enum {
HTTP_TYPE,
SOCKS4_TYPE,
SOCKS5_TYPE
} proxy_type;
typedef enum {
DYNAMIC_TYPE,
STRICT_TYPE,
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RANDOM_TYPE,
ROUND_ROBIN_TYPE
} chain_type;
typedef enum {
PLAY_STATE,
DOWN_STATE,
BLOCKED_STATE,
BUSY_STATE
} proxy_state;
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typedef enum {
RANDOMLY,
FIFOLY
} select_type;
typedef struct {
struct in_addr in_addr, netmask;
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unsigned short port;
} localaddr_arg;
typedef struct {
ip_type ip;
unsigned short port;
proxy_type pt;
proxy_state ps;
char user[256];
char pass[256];
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} proxy_data;
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int connect_proxy_chain (int sock, ip_type target_ip, unsigned short target_port,
proxy_data * pd, unsigned int proxy_count, chain_type ct,
unsigned int max_chain );
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void proxychains_write_log(char *str, ...);
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typedef int (*close_t)(int);
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typedef int (*connect_t)(int, const struct sockaddr *, socklen_t);
typedef struct hostent* (*gethostbyname_t)(const char *);
typedef int (*freeaddrinfo_t)(struct addrinfo *);
typedef struct hostent *(*gethostbyaddr_t) (const void *, socklen_t, int);
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typedef int (*getaddrinfo_t)(const char *, const char *, const struct addrinfo *,
struct addrinfo **);
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typedef int (*getnameinfo_t) (const struct sockaddr *, socklen_t, char *,
socklen_t, char *, socklen_t, int);
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extern connect_t true_connect;
extern gethostbyname_t true_gethostbyname;
extern getaddrinfo_t true_getaddrinfo;
extern freeaddrinfo_t true_freeaddrinfo;
extern getnameinfo_t true_getnameinfo;
extern gethostbyaddr_t true_gethostbyaddr;
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struct gethostbyname_data {
struct hostent hostent_space;
in_addr_t resolved_addr;
char *resolved_addr_p[2];
char addr_name[1024 * 8];
};
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struct hostent* proxy_gethostbyname(const char *name, struct gethostbyname_data *data);
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int proxy_getaddrinfo(const char *node, const char *service,
const struct addrinfo *hints, struct addrinfo **res);
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void proxy_freeaddrinfo(struct addrinfo *res);
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void core_initialize(void);
void core_unload(void);
#include "debug.h"
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#endif
//RcB: DEP "core.c"
//RcB: DEP "libproxychains.c"
//RcB: LINK "-Wl,--no-as-needed -ldl -lpthread"