[b7d3cc34] | 1 | /* |
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| 2 | * gaim |
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| 3 | * |
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| 4 | * Copyright (C) 1998-1999, Mark Spencer <markster@marko.net> |
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| 5 | * Copyright (C) 2002-2004, Wilmer van der Gaast, Jelmer Vernooij |
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| 6 | * |
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| 7 | * This program is free software; you can redistribute it and/or modify |
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| 8 | * it under the terms of the GNU General Public License as published by |
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| 9 | * the Free Software Foundation; either version 2 of the License, or |
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| 10 | * (at your option) any later version. |
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| 11 | * |
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| 12 | * This program is distributed in the hope that it will be useful, |
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 15 | * GNU General Public License for more details. |
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| 16 | * |
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| 17 | * You should have received a copy of the GNU General Public License |
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| 18 | * along with this program; if not, write to the Free Software |
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| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 20 | * |
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| 21 | */ |
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| 22 | |
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| 23 | /* this is a little piece of code to handle proxy connection */ |
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| 24 | /* it is intended to : 1st handle http proxy, using the CONNECT command |
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| 25 | , 2nd provide an easy way to add socks support */ |
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| 26 | |
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| 27 | #define BITLBEE_CORE |
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| 28 | #include <stdio.h> |
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| 29 | #include <stdlib.h> |
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| 30 | #include <string.h> |
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| 31 | #include <sys/types.h> |
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| 32 | #ifndef _WIN32 |
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| 33 | #include <sys/socket.h> |
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| 34 | #include <netdb.h> |
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| 35 | #include <netinet/in.h> |
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| 36 | #include <arpa/inet.h> |
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| 37 | #include <unistd.h> |
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| 38 | #else |
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| 39 | #include "sock.h" |
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| 40 | #define ETIMEDOUT WSAETIMEDOUT |
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| 41 | #define EINPROGRESS WSAEINPROGRESS |
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| 42 | #endif |
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| 43 | #include <fcntl.h> |
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| 44 | #include <errno.h> |
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| 45 | #include "nogaim.h" |
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| 46 | #include "proxy.h" |
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| 47 | |
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| 48 | #define GAIM_READ_COND (G_IO_IN | G_IO_HUP | G_IO_ERR) |
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| 49 | #define GAIM_WRITE_COND (G_IO_OUT | G_IO_HUP | G_IO_ERR | G_IO_NVAL) |
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| 50 | #define GAIM_ERR_COND (G_IO_HUP | G_IO_ERR | G_IO_NVAL) |
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| 51 | |
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| 52 | /*FIXME* |
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| 53 | #ifndef _WIN32 |
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| 54 | if (getsockopt(fd, SOL_SOCKET, SO_ERROR, &error, &len) < 0) { |
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| 55 | closesocket(fd); |
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| 56 | g_free(phb); |
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| 57 | return -1; |
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| 58 | } |
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| 59 | fcntl(fd, F_SETFL, 0); |
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| 60 | #endif*/ |
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| 61 | |
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| 62 | char proxyhost[128] = ""; |
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| 63 | int proxyport = 0; |
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| 64 | int proxytype = PROXY_NONE; |
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| 65 | char proxyuser[128] = ""; |
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| 66 | char proxypass[128] = ""; |
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| 67 | |
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| 68 | struct PHB { |
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| 69 | GaimInputFunction func, proxy_func; |
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| 70 | gpointer data, proxy_data; |
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| 71 | char *host; |
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| 72 | int port; |
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| 73 | int fd; |
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| 74 | gint inpa; |
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| 75 | }; |
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| 76 | |
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| 77 | typedef struct _GaimIOClosure { |
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| 78 | GaimInputFunction function; |
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| 79 | guint result; |
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| 80 | gpointer data; |
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| 81 | } GaimIOClosure; |
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| 82 | |
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| 83 | |
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| 84 | |
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| 85 | static struct sockaddr_in *gaim_gethostbyname(char *host, int port) |
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| 86 | { |
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| 87 | static struct sockaddr_in sin; |
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| 88 | |
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| 89 | if (!inet_aton(host, &sin.sin_addr)) { |
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| 90 | struct hostent *hp; |
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| 91 | if (!(hp = gethostbyname(host))) { |
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| 92 | return NULL; |
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| 93 | } |
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| 94 | memset(&sin, 0, sizeof(struct sockaddr_in)); |
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| 95 | memcpy(&sin.sin_addr.s_addr, hp->h_addr, hp->h_length); |
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| 96 | sin.sin_family = hp->h_addrtype; |
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| 97 | } else |
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| 98 | sin.sin_family = AF_INET; |
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| 99 | sin.sin_port = htons(port); |
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| 100 | |
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| 101 | return &sin; |
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| 102 | } |
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| 103 | |
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| 104 | static void gaim_io_destroy(gpointer data) |
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| 105 | { |
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| 106 | g_free(data); |
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| 107 | } |
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| 108 | |
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| 109 | #ifdef PROXYPROFILER |
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| 110 | struct proxyprofiler |
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| 111 | { |
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| 112 | GaimInputFunction function; |
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| 113 | gpointer data; |
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| 114 | |
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| 115 | int count; |
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| 116 | |
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| 117 | struct proxyprofiler *next; |
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| 118 | } *pp = NULL; |
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| 119 | |
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| 120 | void proxyprofiler_dump() |
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| 121 | { |
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| 122 | struct proxyprofiler *l; |
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| 123 | char s[128]; |
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| 124 | FILE *fp; |
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| 125 | |
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| 126 | sprintf( s, "proxyprofiler.%d", (int) getpid() ); |
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| 127 | fp = fopen( s, "w" ); |
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| 128 | |
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| 129 | fprintf( fp, "%-18s %-18s %10s\n", "Function", "Data", "Count" ); |
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| 130 | for( l = pp; l; l = l->next ) |
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| 131 | fprintf( fp, "0x%-16x 0x%-16x %10d\n", (int) l->function, (int) l->data, l->count ); |
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| 132 | |
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| 133 | fclose( fp ); |
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| 134 | } |
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| 135 | #endif |
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| 136 | |
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| 137 | static gboolean gaim_io_invoke(GIOChannel *source, GIOCondition condition, gpointer data) |
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| 138 | { |
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| 139 | GaimIOClosure *closure = data; |
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| 140 | GaimInputCondition gaim_cond = 0; |
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| 141 | |
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| 142 | #ifdef PROXYPROFILER |
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| 143 | struct proxyprofiler *l; |
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| 144 | |
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| 145 | for( l = pp; l; l = l->next ) |
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| 146 | { |
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| 147 | if( closure->function == l->function && closure->data == l->data ) |
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| 148 | break; |
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| 149 | } |
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| 150 | if( l ) |
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| 151 | { |
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| 152 | l->count ++; |
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| 153 | } |
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| 154 | else |
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| 155 | { |
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| 156 | l = g_new0( struct proxyprofiler, 1 ); |
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| 157 | l->function = closure->function; |
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| 158 | l->data = closure->data; |
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| 159 | l->count = 1; |
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| 160 | |
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| 161 | l->next = pp; |
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| 162 | pp = l; |
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| 163 | } |
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| 164 | #endif |
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| 165 | |
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| 166 | count_io_event(source, "proxy"); |
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| 167 | |
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| 168 | if (condition & GAIM_READ_COND) |
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| 169 | gaim_cond |= GAIM_INPUT_READ; |
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| 170 | if (condition & GAIM_WRITE_COND) |
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| 171 | gaim_cond |= GAIM_INPUT_WRITE; |
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| 172 | // if (condition & GAIM_ERR_COND) |
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| 173 | // fprintf( stderr, "ERROR! fd=%d\n", g_io_channel_unix_get_fd( source ) ); |
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| 174 | |
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| 175 | closure->function(closure->data, g_io_channel_unix_get_fd(source), gaim_cond); |
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| 176 | |
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| 177 | return TRUE; |
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| 178 | } |
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| 179 | |
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| 180 | static void no_one_calls(gpointer data, gint source, GaimInputCondition cond) |
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| 181 | { |
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| 182 | struct PHB *phb = data; |
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| 183 | unsigned int len; |
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| 184 | int error = ETIMEDOUT; |
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| 185 | len = sizeof(error); |
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| 186 | |
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| 187 | #ifndef _WIN32 |
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| 188 | if (getsockopt(source, SOL_SOCKET, SO_ERROR, &error, &len) < 0) { |
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| 189 | closesocket(source); |
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| 190 | gaim_input_remove(phb->inpa); |
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| 191 | if( phb->proxy_func ) |
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| 192 | phb->proxy_func(phb->proxy_data, -1, GAIM_INPUT_READ); |
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| 193 | else { |
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| 194 | phb->func(phb->data, -1, GAIM_INPUT_READ); |
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| 195 | g_free(phb); |
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| 196 | } |
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| 197 | return; |
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| 198 | } |
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| 199 | fcntl(source, F_SETFL, 0); |
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| 200 | #endif |
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| 201 | gaim_input_remove(phb->inpa); |
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| 202 | if( phb->proxy_func ) |
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| 203 | phb->proxy_func(phb->proxy_data, source, GAIM_INPUT_READ); |
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| 204 | else { |
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| 205 | phb->func(phb->data, source, GAIM_INPUT_READ); |
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| 206 | g_free(phb); |
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| 207 | } |
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| 208 | } |
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| 209 | |
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| 210 | static int proxy_connect_none(char *host, unsigned short port, struct PHB *phb) |
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| 211 | { |
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| 212 | struct sockaddr_in *sin; |
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| 213 | int fd = -1; |
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| 214 | |
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| 215 | if (!(sin = gaim_gethostbyname(host, port))) { |
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| 216 | g_free(phb); |
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| 217 | return -1; |
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| 218 | } |
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| 219 | |
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| 220 | if ((fd = socket(sin->sin_family, SOCK_STREAM, 0)) < 0) { |
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| 221 | g_free(phb); |
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| 222 | return -1; |
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| 223 | } |
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| 224 | |
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| 225 | sock_make_nonblocking(fd); |
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| 226 | |
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| 227 | if (connect(fd, (struct sockaddr *)sin, sizeof(*sin)) < 0) { |
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| 228 | if (sockerr_again()) { |
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| 229 | phb->inpa = gaim_input_add(fd, GAIM_INPUT_WRITE, no_one_calls, phb); |
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| 230 | phb->fd = fd; |
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| 231 | } else { |
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| 232 | closesocket(fd); |
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| 233 | g_free(phb); |
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| 234 | return -1; |
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| 235 | } |
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| 236 | } |
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| 237 | |
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| 238 | return fd; |
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| 239 | } |
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| 240 | |
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| 241 | |
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| 242 | /* Connecting to HTTP proxies */ |
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| 243 | |
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| 244 | #define HTTP_GOODSTRING "HTTP/1.0 200 Connection established" |
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| 245 | #define HTTP_GOODSTRING2 "HTTP/1.1 200 Connection established" |
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| 246 | |
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| 247 | static void http_canread(gpointer data, gint source, GaimInputCondition cond) |
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| 248 | { |
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| 249 | int nlc = 0; |
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| 250 | int pos = 0; |
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| 251 | struct PHB *phb = data; |
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| 252 | char inputline[8192]; |
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| 253 | |
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| 254 | gaim_input_remove(phb->inpa); |
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| 255 | |
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| 256 | while ((pos < sizeof(inputline)-1) && (nlc != 2) && (read(source, &inputline[pos++], 1) == 1)) { |
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| 257 | if (inputline[pos - 1] == '\n') |
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| 258 | nlc++; |
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| 259 | else if (inputline[pos - 1] != '\r') |
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| 260 | nlc = 0; |
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| 261 | } |
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| 262 | inputline[pos] = '\0'; |
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| 263 | |
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| 264 | if ((memcmp(HTTP_GOODSTRING, inputline, strlen(HTTP_GOODSTRING)) == 0) || |
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| 265 | (memcmp(HTTP_GOODSTRING2, inputline, strlen(HTTP_GOODSTRING2)) == 0)) { |
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| 266 | phb->func(phb->data, source, GAIM_INPUT_READ); |
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| 267 | g_free(phb->host); |
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| 268 | g_free(phb); |
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| 269 | return; |
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| 270 | } |
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| 271 | |
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| 272 | close(source); |
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| 273 | phb->func(phb->data, -1, GAIM_INPUT_READ); |
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| 274 | g_free(phb->host); |
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| 275 | g_free(phb); |
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| 276 | return; |
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| 277 | } |
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| 278 | |
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| 279 | static void http_canwrite(gpointer data, gint source, GaimInputCondition cond) |
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| 280 | { |
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| 281 | char cmd[384]; |
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| 282 | struct PHB *phb = data; |
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| 283 | unsigned int len; |
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| 284 | int error = ETIMEDOUT; |
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| 285 | if (phb->inpa > 0) |
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| 286 | gaim_input_remove(phb->inpa); |
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| 287 | len = sizeof(error); |
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| 288 | if (getsockopt(source, SOL_SOCKET, SO_ERROR, &error, &len) < 0) { |
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| 289 | close(source); |
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| 290 | phb->func(phb->data, -1, GAIM_INPUT_READ); |
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| 291 | g_free(phb->host); |
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| 292 | g_free(phb); |
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| 293 | return; |
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| 294 | } |
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| 295 | #ifdef F_SETFL |
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| 296 | fcntl(source, F_SETFL, 0); |
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| 297 | #endif |
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| 298 | |
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| 299 | g_snprintf(cmd, sizeof(cmd), "CONNECT %s:%d HTTP/1.1\r\nHost: %s:%d\r\n", phb->host, phb->port, |
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| 300 | phb->host, phb->port); |
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| 301 | if (send(source, cmd, strlen(cmd), 0) < 0) { |
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| 302 | close(source); |
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| 303 | phb->func(phb->data, -1, GAIM_INPUT_READ); |
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| 304 | g_free(phb->host); |
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| 305 | g_free(phb); |
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| 306 | return; |
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| 307 | } |
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| 308 | |
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| 309 | if (proxyuser && *proxyuser) { |
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| 310 | char *t1, *t2; |
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| 311 | t1 = g_strdup_printf("%s:%s", proxyuser, proxypass); |
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| 312 | t2 = tobase64(t1); |
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| 313 | g_free(t1); |
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| 314 | g_snprintf(cmd, sizeof(cmd), "Proxy-Authorization: Basic %s\r\n", t2); |
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| 315 | g_free(t2); |
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| 316 | if (send(source, cmd, strlen(cmd), 0) < 0) { |
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| 317 | close(source); |
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| 318 | phb->func(phb->data, -1, GAIM_INPUT_READ); |
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| 319 | g_free(phb->host); |
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| 320 | g_free(phb); |
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| 321 | return; |
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| 322 | } |
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| 323 | } |
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| 324 | |
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| 325 | g_snprintf(cmd, sizeof(cmd), "\r\n"); |
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| 326 | if (send(source, cmd, strlen(cmd), 0) < 0) { |
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| 327 | close(source); |
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| 328 | phb->func(phb->data, -1, GAIM_INPUT_READ); |
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| 329 | g_free(phb->host); |
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| 330 | g_free(phb); |
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| 331 | return; |
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| 332 | } |
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| 333 | |
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| 334 | phb->inpa = gaim_input_add(source, GAIM_INPUT_READ, http_canread, phb); |
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| 335 | } |
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| 336 | |
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| 337 | static int proxy_connect_http(char *host, unsigned short port, struct PHB *phb) |
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| 338 | { |
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| 339 | phb->host = g_strdup(host); |
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| 340 | phb->port = port; |
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| 341 | phb->proxy_func = http_canwrite; |
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| 342 | phb->proxy_data = phb; |
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| 343 | |
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| 344 | return( proxy_connect_none( proxyhost, proxyport, phb ) ); |
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| 345 | } |
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| 346 | |
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| 347 | |
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| 348 | /* Connecting to SOCKS4 proxies */ |
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| 349 | |
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| 350 | static void s4_canread(gpointer data, gint source, GaimInputCondition cond) |
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| 351 | { |
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| 352 | unsigned char packet[12]; |
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| 353 | struct PHB *phb = data; |
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| 354 | |
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| 355 | gaim_input_remove(phb->inpa); |
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| 356 | |
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| 357 | memset(packet, 0, sizeof(packet)); |
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| 358 | if (read(source, packet, 9) >= 4 && packet[1] == 90) { |
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| 359 | phb->func(phb->data, source, GAIM_INPUT_READ); |
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| 360 | g_free(phb->host); |
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| 361 | g_free(phb); |
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| 362 | return; |
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| 363 | } |
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| 364 | |
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| 365 | close(source); |
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| 366 | phb->func(phb->data, -1, GAIM_INPUT_READ); |
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| 367 | g_free(phb->host); |
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| 368 | g_free(phb); |
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| 369 | } |
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| 370 | |
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| 371 | static void s4_canwrite(gpointer data, gint source, GaimInputCondition cond) |
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| 372 | { |
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| 373 | unsigned char packet[12]; |
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| 374 | struct hostent *hp; |
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| 375 | struct PHB *phb = data; |
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| 376 | unsigned int len; |
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| 377 | int error = ETIMEDOUT; |
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| 378 | if (phb->inpa > 0) |
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| 379 | gaim_input_remove(phb->inpa); |
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| 380 | len = sizeof(error); |
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| 381 | if (getsockopt(source, SOL_SOCKET, SO_ERROR, &error, &len) < 0) { |
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| 382 | close(source); |
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| 383 | phb->func(phb->data, -1, GAIM_INPUT_READ); |
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| 384 | g_free(phb->host); |
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| 385 | g_free(phb); |
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| 386 | return; |
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| 387 | } |
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| 388 | #ifdef F_SETFL |
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| 389 | fcntl(source, F_SETFL, 0); |
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| 390 | #endif |
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| 391 | |
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| 392 | /* XXX does socks4 not support host name lookups by the proxy? */ |
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| 393 | if (!(hp = gethostbyname(phb->host))) { |
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| 394 | close(source); |
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| 395 | phb->func(phb->data, -1, GAIM_INPUT_READ); |
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| 396 | g_free(phb->host); |
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| 397 | g_free(phb); |
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| 398 | return; |
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| 399 | } |
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| 400 | |
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| 401 | packet[0] = 4; |
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| 402 | packet[1] = 1; |
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| 403 | packet[2] = phb->port >> 8; |
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| 404 | packet[3] = phb->port & 0xff; |
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| 405 | packet[4] = (unsigned char)(hp->h_addr_list[0])[0]; |
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| 406 | packet[5] = (unsigned char)(hp->h_addr_list[0])[1]; |
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| 407 | packet[6] = (unsigned char)(hp->h_addr_list[0])[2]; |
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| 408 | packet[7] = (unsigned char)(hp->h_addr_list[0])[3]; |
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| 409 | packet[8] = 0; |
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| 410 | if (write(source, packet, 9) != 9) { |
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| 411 | close(source); |
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| 412 | phb->func(phb->data, -1, GAIM_INPUT_READ); |
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| 413 | g_free(phb->host); |
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| 414 | g_free(phb); |
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| 415 | return; |
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| 416 | } |
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| 417 | |
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| 418 | phb->inpa = gaim_input_add(source, GAIM_INPUT_READ, s4_canread, phb); |
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| 419 | } |
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| 420 | |
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| 421 | static int proxy_connect_socks4(char *host, unsigned short port, struct PHB *phb) |
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| 422 | { |
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| 423 | phb->host = g_strdup(host); |
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| 424 | phb->port = port; |
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| 425 | phb->proxy_func = s4_canwrite; |
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| 426 | phb->proxy_data = phb; |
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| 427 | |
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| 428 | return( proxy_connect_none( proxyhost, proxyport, phb ) ); |
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| 429 | } |
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| 430 | |
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| 431 | |
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| 432 | /* Connecting to SOCKS5 proxies */ |
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| 433 | |
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| 434 | static void s5_canread_again(gpointer data, gint source, GaimInputCondition cond) |
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| 435 | { |
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| 436 | unsigned char buf[512]; |
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| 437 | struct PHB *phb = data; |
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| 438 | |
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| 439 | gaim_input_remove(phb->inpa); |
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| 440 | |
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| 441 | if (read(source, buf, 10) < 10) { |
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| 442 | close(source); |
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| 443 | phb->func(phb->data, -1, GAIM_INPUT_READ); |
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| 444 | g_free(phb->host); |
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| 445 | g_free(phb); |
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| 446 | return; |
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| 447 | } |
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| 448 | if ((buf[0] != 0x05) || (buf[1] != 0x00)) { |
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| 449 | close(source); |
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| 450 | phb->func(phb->data, -1, GAIM_INPUT_READ); |
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| 451 | g_free(phb->host); |
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| 452 | g_free(phb); |
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| 453 | return; |
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| 454 | } |
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| 455 | |
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| 456 | phb->func(phb->data, source, GAIM_INPUT_READ); |
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| 457 | g_free(phb->host); |
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| 458 | g_free(phb); |
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| 459 | return; |
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| 460 | } |
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| 461 | |
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| 462 | static void s5_sendconnect(gpointer data, gint source) |
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| 463 | { |
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| 464 | unsigned char buf[512]; |
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| 465 | struct PHB *phb = data; |
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| 466 | int hlen = strlen(phb->host); |
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| 467 | |
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| 468 | buf[0] = 0x05; |
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| 469 | buf[1] = 0x01; /* CONNECT */ |
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| 470 | buf[2] = 0x00; /* reserved */ |
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| 471 | buf[3] = 0x03; /* address type -- host name */ |
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| 472 | buf[4] = hlen; |
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| 473 | memcpy(buf + 5, phb->host, hlen); |
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| 474 | buf[5 + strlen(phb->host)] = phb->port >> 8; |
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| 475 | buf[5 + strlen(phb->host) + 1] = phb->port & 0xff; |
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| 476 | |
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| 477 | if (write(source, buf, (5 + strlen(phb->host) + 2)) < (5 + strlen(phb->host) + 2)) { |
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| 478 | close(source); |
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| 479 | phb->func(phb->data, -1, GAIM_INPUT_READ); |
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| 480 | g_free(phb->host); |
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| 481 | g_free(phb); |
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| 482 | return; |
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| 483 | } |
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| 484 | |
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| 485 | phb->inpa = gaim_input_add(source, GAIM_INPUT_READ, s5_canread_again, phb); |
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| 486 | } |
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| 487 | |
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| 488 | static void s5_readauth(gpointer data, gint source, GaimInputCondition cond) |
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| 489 | { |
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| 490 | unsigned char buf[512]; |
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| 491 | struct PHB *phb = data; |
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| 492 | |
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| 493 | gaim_input_remove(phb->inpa); |
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| 494 | |
---|
| 495 | if (read(source, buf, 2) < 2) { |
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| 496 | close(source); |
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| 497 | phb->func(phb->data, -1, GAIM_INPUT_READ); |
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| 498 | g_free(phb->host); |
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| 499 | g_free(phb); |
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| 500 | return; |
---|
| 501 | } |
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| 502 | |
---|
| 503 | if ((buf[0] != 0x01) || (buf[1] != 0x00)) { |
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| 504 | close(source); |
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| 505 | phb->func(phb->data, -1, GAIM_INPUT_READ); |
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| 506 | g_free(phb->host); |
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| 507 | g_free(phb); |
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| 508 | return; |
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| 509 | } |
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| 510 | |
---|
| 511 | s5_sendconnect(phb, source); |
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| 512 | } |
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| 513 | |
---|
| 514 | static void s5_canread(gpointer data, gint source, GaimInputCondition cond) |
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| 515 | { |
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| 516 | unsigned char buf[512]; |
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| 517 | struct PHB *phb = data; |
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| 518 | |
---|
| 519 | gaim_input_remove(phb->inpa); |
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| 520 | |
---|
| 521 | if (read(source, buf, 2) < 2) { |
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| 522 | close(source); |
---|
| 523 | phb->func(phb->data, -1, GAIM_INPUT_READ); |
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| 524 | g_free(phb->host); |
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| 525 | g_free(phb); |
---|
| 526 | return; |
---|
| 527 | } |
---|
| 528 | |
---|
| 529 | if ((buf[0] != 0x05) || (buf[1] == 0xff)) { |
---|
| 530 | close(source); |
---|
| 531 | phb->func(phb->data, -1, GAIM_INPUT_READ); |
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| 532 | g_free(phb->host); |
---|
| 533 | g_free(phb); |
---|
| 534 | return; |
---|
| 535 | } |
---|
| 536 | |
---|
| 537 | if (buf[1] == 0x02) { |
---|
| 538 | unsigned int i = strlen(proxyuser), j = strlen(proxypass); |
---|
| 539 | buf[0] = 0x01; /* version 1 */ |
---|
| 540 | buf[1] = i; |
---|
| 541 | memcpy(buf + 2, proxyuser, i); |
---|
| 542 | buf[2 + i] = j; |
---|
| 543 | memcpy(buf + 2 + i + 1, proxypass, j); |
---|
| 544 | if (write(source, buf, 3 + i + j) < 3 + i + j) { |
---|
| 545 | close(source); |
---|
| 546 | phb->func(phb->data, -1, GAIM_INPUT_READ); |
---|
| 547 | g_free(phb->host); |
---|
| 548 | g_free(phb); |
---|
| 549 | return; |
---|
| 550 | } |
---|
| 551 | |
---|
| 552 | phb->inpa = gaim_input_add(source, GAIM_INPUT_READ, s5_readauth, phb); |
---|
| 553 | } else { |
---|
| 554 | s5_sendconnect(phb, source); |
---|
| 555 | } |
---|
| 556 | } |
---|
| 557 | |
---|
| 558 | static void s5_canwrite(gpointer data, gint source, GaimInputCondition cond) |
---|
| 559 | { |
---|
| 560 | unsigned char buf[512]; |
---|
| 561 | int i; |
---|
| 562 | struct PHB *phb = data; |
---|
| 563 | unsigned int len; |
---|
| 564 | int error = ETIMEDOUT; |
---|
| 565 | if (phb->inpa > 0) |
---|
| 566 | gaim_input_remove(phb->inpa); |
---|
| 567 | len = sizeof(error); |
---|
| 568 | if (getsockopt(source, SOL_SOCKET, SO_ERROR, &error, &len) < 0) { |
---|
| 569 | close(source); |
---|
| 570 | phb->func(phb->data, -1, GAIM_INPUT_READ); |
---|
| 571 | g_free(phb->host); |
---|
| 572 | g_free(phb); |
---|
| 573 | return; |
---|
| 574 | } |
---|
| 575 | #ifdef F_SETFL |
---|
| 576 | fcntl(source, F_SETFL, 0); |
---|
| 577 | #endif |
---|
| 578 | |
---|
| 579 | i = 0; |
---|
| 580 | buf[0] = 0x05; /* SOCKS version 5 */ |
---|
| 581 | if (proxyuser[0]) { |
---|
| 582 | buf[1] = 0x02; /* two methods */ |
---|
| 583 | buf[2] = 0x00; /* no authentication */ |
---|
| 584 | buf[3] = 0x02; /* username/password authentication */ |
---|
| 585 | i = 4; |
---|
| 586 | } else { |
---|
| 587 | buf[1] = 0x01; |
---|
| 588 | buf[2] = 0x00; |
---|
| 589 | i = 3; |
---|
| 590 | } |
---|
| 591 | |
---|
| 592 | if (write(source, buf, i) < i) { |
---|
| 593 | close(source); |
---|
| 594 | phb->func(phb->data, -1, GAIM_INPUT_READ); |
---|
| 595 | g_free(phb->host); |
---|
| 596 | g_free(phb); |
---|
| 597 | return; |
---|
| 598 | } |
---|
| 599 | |
---|
| 600 | phb->inpa = gaim_input_add(source, GAIM_INPUT_READ, s5_canread, phb); |
---|
| 601 | } |
---|
| 602 | |
---|
| 603 | static int proxy_connect_socks5(char *host, unsigned short port, struct PHB *phb) |
---|
| 604 | { |
---|
| 605 | phb->host = g_strdup(host); |
---|
| 606 | phb->port = port; |
---|
| 607 | phb->proxy_func = s5_canwrite; |
---|
| 608 | phb->proxy_data = phb; |
---|
| 609 | |
---|
| 610 | return( proxy_connect_none( proxyhost, proxyport, phb ) ); |
---|
| 611 | } |
---|
| 612 | |
---|
| 613 | |
---|
| 614 | /* Export functions */ |
---|
| 615 | |
---|
| 616 | gint gaim_input_add(gint source, GaimInputCondition condition, GaimInputFunction function, gpointer data) |
---|
| 617 | { |
---|
| 618 | GaimIOClosure *closure = g_new0(GaimIOClosure, 1); |
---|
| 619 | GIOChannel *channel; |
---|
| 620 | GIOCondition cond = 0; |
---|
| 621 | |
---|
| 622 | closure->function = function; |
---|
| 623 | closure->data = data; |
---|
| 624 | |
---|
| 625 | if (condition & GAIM_INPUT_READ) |
---|
| 626 | cond |= GAIM_READ_COND; |
---|
| 627 | if (condition & GAIM_INPUT_WRITE) |
---|
| 628 | cond |= GAIM_WRITE_COND; |
---|
| 629 | |
---|
| 630 | channel = g_io_channel_unix_new(source); |
---|
| 631 | closure->result = g_io_add_watch_full(channel, G_PRIORITY_DEFAULT, cond, |
---|
| 632 | gaim_io_invoke, closure, gaim_io_destroy); |
---|
| 633 | |
---|
| 634 | g_io_channel_unref(channel); |
---|
| 635 | return closure->result; |
---|
| 636 | } |
---|
| 637 | |
---|
| 638 | void gaim_input_remove(gint tag) |
---|
| 639 | { |
---|
| 640 | if (tag > 0) |
---|
| 641 | g_source_remove(tag); |
---|
| 642 | } |
---|
| 643 | |
---|
| 644 | int proxy_connect(char *host, int port, GaimInputFunction func, gpointer data) |
---|
| 645 | { |
---|
| 646 | struct PHB *phb; |
---|
| 647 | |
---|
| 648 | if (!host || !port || (port == -1) || !func || strlen(host) > 128) { |
---|
| 649 | return -1; |
---|
| 650 | } |
---|
| 651 | |
---|
| 652 | phb = g_new0(struct PHB, 1); |
---|
| 653 | phb->func = func; |
---|
| 654 | phb->data = data; |
---|
| 655 | |
---|
| 656 | #ifndef _WIN32 |
---|
| 657 | sethostent(1); |
---|
| 658 | #endif |
---|
| 659 | |
---|
| 660 | if ((proxytype == PROXY_NONE) || !proxyhost || !proxyhost[0] || !proxyport || (proxyport == -1)) |
---|
| 661 | return proxy_connect_none(host, port, phb); |
---|
| 662 | else if (proxytype == PROXY_HTTP) |
---|
| 663 | return proxy_connect_http(host, port, phb); |
---|
| 664 | else if (proxytype == PROXY_SOCKS4) |
---|
| 665 | return proxy_connect_socks4(host, port, phb); |
---|
| 666 | else if (proxytype == PROXY_SOCKS5) |
---|
| 667 | return proxy_connect_socks5(host, port, phb); |
---|
| 668 | |
---|
| 669 | if (phb->host) g_free(phb); |
---|
| 670 | g_free(phb); |
---|
| 671 | return -1; |
---|
| 672 | } |
---|