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/***************************************************************************\
*                                                                           *
*  BitlBee - An IRC to IM gateway                                           *
*  Simple (but secure) ArcFour implementation for safer password storage.   *
*                                                                           *
*  Copyright 2007 Wilmer van der Gaast <wilmer@gaast.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.,  *
*  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.              *
*                                                                           *
\***************************************************************************/


/* See arc.c for more information. */

struct arc_state
{
	unsigned char S[256];
	unsigned char i, j;
};

#ifndef G_GNUC_MALLOC
#define G_GNUC_MALLOC
#endif

G_GNUC_MALLOC struct arc_state *arc_keymaker( unsigned char *key, int kl, int cycles );
unsigned char arc_getbyte( struct arc_state *st );
int arc_encode( char *clear, int clear_len, unsigned char **crypt, char *password, int pad_to );
int arc_decode( unsigned char *crypt, int crypt_len, char **clear, char *password );
trstr( set_url, "://" ) ) == NULL ) { url->proto = PROTO_DEFAULT; strncpy( s, set_url, MAX_STRING ); } else { if( g_strncasecmp( set_url, "http", i - set_url ) == 0 ) url->proto = PROTO_HTTP; else if( g_strncasecmp( set_url, "https", i - set_url ) == 0 ) url->proto = PROTO_HTTPS; else if( g_strncasecmp( set_url, "socks4", i - set_url ) == 0 ) url->proto = PROTO_SOCKS4; else if( g_strncasecmp( set_url, "socks5", i - set_url ) == 0 ) url->proto = PROTO_SOCKS5; else return 0; strncpy( s, i + 3, MAX_STRING ); } /* Split */ if( ( i = strchr( s, '/' ) ) == NULL ) { strcpy( url->file, "/" ); } else { strncpy( url->file, i, MAX_STRING ); *i = 0; } strncpy( url->host, s, MAX_STRING ); /* Check for username in host field */ if( strrchr( url->host, '@' ) != NULL ) { strncpy( url->user, url->host, MAX_STRING ); i = strrchr( url->user, '@' ); *i = 0; strcpy( url->host, i + 1 ); *url->pass = 0; } /* If not: Fill in defaults */ else { *url->user = *url->pass = 0; } /* Password? */ if( ( i = strchr( url->user, ':' ) ) != NULL ) { *i = 0; strcpy( url->pass, i + 1 ); } /* Port number? */ if( ( i = strchr( url->host, ':' ) ) != NULL ) { *i = 0; sscanf( i + 1, "%d", &url->port ); } else { if( url->proto == PROTO_HTTP ) url->port = 80; else if( url->proto == PROTO_HTTPS ) url->port = 443; else if( url->proto == PROTO_SOCKS4 || url->proto == PROTO_SOCKS5 ) url->port = 1080; } return( url->port > 0 ); }