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
***************************************************************************/
/* GPL */
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#ifndef __CORE_HEADER
#define __CORE_HEADER
#define BUFF_SIZE 8*1024 // used to read responses from proxies.
#define MAX_LOCALNET 1024
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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
} ERR_CODE;
typedef enum {HTTP_TYPE,SOCKS4_TYPE,SOCKS5_TYPE} proxy_type;
typedef enum {DYNAMIC_TYPE,STRICT_TYPE,RANDOM_TYPE} chain_type;
typedef enum {PLAY_STATE,DOWN_STATE,BLOCKED_STATE,BUSY_STATE} proxy_state;
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 {
unsigned int ip;
unsigned short port;
proxy_type pt;
proxy_state ps;
char user[256];
char pass[256];
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} proxy_data;
typedef struct {
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proxy_data *pd;
chain_type ct;
unsigned int proxy_count;
int sock;
struct sockaddr addr;
int flags;
} thread_arg;
int connect_proxy_chain (
int sock,
unsigned int target_ip,
unsigned short target_port,
proxy_data * pd,
unsigned int proxy_count,
chain_type ct,
unsigned int max_chain );
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int proxychains_write_log(char *str,...);
struct hostent* proxy_gethostbyname(const char *name);
typedef int (*connect_t)(int, const struct sockaddr *, socklen_t);
connect_t true_connect;
typedef struct hostent* (*gethostbyname_t)(const char *);
gethostbyname_t true_gethostbyname;
typedef int (*getaddrinfo_t)(const char *, const char *,
const struct addrinfo *,
struct addrinfo **);
getaddrinfo_t true_getaddrinfo;
typedef int (*freeaddrinfo_t)(struct addrinfo *);
freeaddrinfo_t true_freeaddrinfo;
typedef int (*getnameinfo_t) (const struct sockaddr *,
socklen_t, char *,
socklen_t, char *,
socklen_t, unsigned int);
getnameinfo_t true_getnameinfo;
typedef struct hostent *(*gethostbyaddr_t) (const void *, socklen_t, int);
gethostbyaddr_t true_gethostbyaddr;
int proxy_getaddrinfo(const char *node, const char *service,
const struct addrinfo *hints,
struct addrinfo **res);
struct hostent* proxy_gethostbyname(const char *name);
#ifdef DEBUG
# define PDEBUG(fmt, args...) fprintf(stderr,"DEBUG:"fmt, ## args)
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#else
# define PDEBUG(fmt, args...)
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#endif
#endif