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/*
 * gaim
 *
 * Copyright (C) 1998-1999, Mark Spencer <markster@marko.net>
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

/* this is the export part of the proxy.c file. it does a little
   prototype-ing stuff and redefine some net function to mask them
   with some kind of transparent layer */ 

#ifndef _PROXY_H_
#define _PROXY_H_

#include <sys/types.h>
#ifndef _WIN32
#include <sys/socket.h>
#include <netdb.h>
#include <netinet/in.h>
#endif
#include <glib.h>
#include <gmodule.h>

#define PROXY_NONE 0
#define PROXY_HTTP 1
#define PROXY_SOCKS4 2
#define PROXY_SOCKS5 3

extern char proxyhost[128];
extern int  proxyport;
extern int  proxytype;
extern char proxyuser[128];
extern char proxypass[128];

typedef enum {
	GAIM_INPUT_READ = 1 << 0,
	GAIM_INPUT_WRITE = 1 << 1
} GaimInputCondition;
typedef void (*GaimInputFunction)(gpointer, gint, GaimInputCondition);

G_MODULE_EXPORT gint gaim_input_add(int, GaimInputCondition, GaimInputFunction, gpointer);
G_MODULE_EXPORT void gaim_input_remove(gint);

G_MODULE_EXPORT int proxy_connect(const char *host, int port, GaimInputFunction func, gpointer data);

#endif /* _PROXY_H_ */
an class="w"> base64_encode((const unsigned char *)text, strlen(text)); } char *base64_encode(const unsigned char *in, int len) { char *out; out = g_malloc((len + 2) /* the == padding */ / 3 /* every 3-byte block */ * 4 /* becomes a 4-byte one */ + 1); /* and of course, ASCIIZ! */ base64_encode_real((unsigned char*) in, len, (unsigned char*) out, real_b64); return out; } int base64_encode_real(const unsigned char *in, int inlen, unsigned char *out, const char *b64digits) { int outlen = 0; for (; inlen >= 3; inlen -= 3) { out[outlen++] = b64digits[in[0] >> 2]; out[outlen++] = b64digits[((in[0]<<4) & 0x30) | (in[1]>>4)]; out[outlen++] = b64digits[((in[1]<<2) & 0x3c) | (in[2]>>6)]; out[outlen++] = b64digits[in[2] & 0x3f]; in += 3; } if (inlen > 0) { out[outlen++] = b64digits[in[0] >> 2]; if (inlen > 1) { out[outlen++] = b64digits[((in[0]<<4) & 0x30) | (in[1]>>4)]; out[outlen++] = b64digits[((in[1]<<2) & 0x3c)]; } else { out[outlen++] = b64digits[((in[0]<<4) & 0x30)]; out[outlen++] = b64digits[64]; } out[outlen++] = b64digits[64]; } out[outlen] = 0; return outlen; } /* Just a simple wrapper, but usually not very convenient because of zero termination. */ char *frombase64(const char *in) { unsigned char *out; base64_decode(in, &out); return (char*) out; } /* FIXME: Lookup table stuff is not threadsafe! (But for now BitlBee is not threaded.) */ int base64_decode(const char *in, unsigned char **out) { static char b64rev[256] = { 0 }; int len, i; /* Create a reverse-lookup for the Base64 sequence. */ if( b64rev[0] == 0 ) { memset( b64rev, 0xff, 256 ); for( i = 0; i <= 64; i ++ ) b64rev[(int)real_b64[i]] = i; } len = strlen( in ); *out = g_malloc( ( len + 6 ) / 4 * 3 ); len = base64_decode_real( (unsigned char*) in, *out, b64rev ); *out = g_realloc( *out, len + 1 ); out[0][len] = 0; /* Zero termination can't hurt. */ return len; } int base64_decode_real(const unsigned char *in, unsigned char *out, char *b64rev) { int i, outlen = 0; for( i = 0; in[i] && in[i+1] && in[i+2] && in[i+3]; i += 4 ) { int sx; sx = b64rev[(int)in[i+0]]; if( sx >= 64 ) break; out[outlen] = ( sx << 2 ) & 0xfc; sx = b64rev[(int)in[i+1]]; if( sx >= 64 ) break; out[outlen] |= ( sx >> 4 ) & 0x03; outlen ++; out[outlen] = ( sx << 4 ) & 0xf0; sx = b64rev[(int)in[i+2]]; if( sx >= 64 ) break; out[outlen] |= ( sx >> 2 ) & 0x0f; outlen ++; out[outlen] = ( sx << 6 ) & 0xc0; sx = b64rev[(int)in[i+3]]; if( sx >= 64 ) break; out[outlen] |= sx; outlen ++; } /* If sx > 64 the base64 string was damaged. Should we ignore this? */ return outlen; }