141 lines
3.9 KiB
C
141 lines
3.9 KiB
C
/***************************************************************************
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core.h - description
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-------------------
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begin : Tue May 14 2002
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copyright : netcreature (C) 2002
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email : netcreature@users.sourceforge.net
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***************************************************************************
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include <unistd.h>
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#include <stdint.h>
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#include <netinet/in.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netdb.h>
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#ifndef __CORE_HEADER
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#define __CORE_HEADER
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#define BUFF_SIZE 8*1024 // used to read responses from proxies.
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#define MAX_LOCALNET 64
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#define MAX_DNAT 64
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#include "ip_type.h"
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/*error codes*/
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typedef enum {
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SUCCESS=0,
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MEMORY_FAIL, // malloc failed
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SOCKET_ERROR, // look errno for more
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CHAIN_DOWN, // no proxy in chain responds to tcp
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CHAIN_EMPTY, // if proxy_count = 0
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BLOCKED // target's port blocked on last proxy in the chain
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} ERR_CODE;
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typedef enum {
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HTTP_TYPE,
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SOCKS4_TYPE,
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SOCKS5_TYPE
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} proxy_type;
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typedef enum {
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DYNAMIC_TYPE,
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STRICT_TYPE,
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RANDOM_TYPE,
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ROUND_ROBIN_TYPE
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} chain_type;
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typedef enum {
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PLAY_STATE,
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DOWN_STATE,
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BLOCKED_STATE,
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BUSY_STATE
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} proxy_state;
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typedef enum {
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RANDOMLY,
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FIFOLY
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} select_type;
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typedef struct {
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struct in_addr in_addr, netmask;
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unsigned short port;
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} localaddr_arg;
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typedef struct {
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struct in_addr orig_dst, new_dst;
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unsigned short orig_port, new_port;
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} dnat_arg;
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typedef struct {
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ip_type ip;
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unsigned short port;
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proxy_type pt;
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proxy_state ps;
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char user[256];
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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,
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proxy_data * pd, unsigned int proxy_count, chain_type ct,
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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);
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typedef struct hostent* (*gethostbyname_t)(const char *);
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typedef int (*freeaddrinfo_t)(struct addrinfo *);
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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 *,
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struct addrinfo **);
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typedef int (*getnameinfo_t) (const struct sockaddr *, socklen_t, char *,
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socklen_t, char *, socklen_t, int);
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typedef ssize_t (*sendto_t) (int sockfd, const void *buf, size_t len, int flags,
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const struct sockaddr *dest_addr, socklen_t addrlen);
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extern connect_t true_connect;
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extern gethostbyname_t true_gethostbyname;
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extern getaddrinfo_t true_getaddrinfo;
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extern freeaddrinfo_t true_freeaddrinfo;
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extern getnameinfo_t true_getnameinfo;
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extern gethostbyaddr_t true_gethostbyaddr;
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struct gethostbyname_data {
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struct hostent hostent_space;
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in_addr_t resolved_addr;
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char *resolved_addr_p[2];
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char addr_name[256];
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};
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struct hostent* proxy_gethostbyname(const char *name, struct gethostbyname_data *data);
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struct hostent* proxy_gethostbyname_old(const char *name);
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int proxy_getaddrinfo(const char *node, const char *service,
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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);
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void core_unload(void);
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#include "debug.h"
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#endif
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//RcB: DEP "core.c"
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//RcB: DEP "libproxychains.c"
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//RcB: LINK "-Wl,--no-as-needed -ldl -lpthread"
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