[0] | 1 | //socket.c: |
---|
| 2 | |
---|
[690] | 3 | /* |
---|
| 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008 |
---|
| 5 | * |
---|
| 6 | * This file is part of libroar a part of RoarAudio, |
---|
| 7 | * a cross-platform sound system for both, home and professional use. |
---|
| 8 | * See README for details. |
---|
| 9 | * |
---|
| 10 | * This file is free software; you can redistribute it and/or modify |
---|
| 11 | * it under the terms of the GNU General Public License version 3 |
---|
| 12 | * as published by the Free Software Foundation. |
---|
| 13 | * |
---|
| 14 | * libroar is distributed in the hope that it will be useful, |
---|
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
---|
| 17 | * GNU General Public License for more details. |
---|
| 18 | * |
---|
| 19 | * You should have received a copy of the GNU General Public License |
---|
| 20 | * along with this software; see the file COPYING. If not, write to |
---|
| 21 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
---|
| 22 | * |
---|
| 23 | * NOTE for everyone want's to change something and send patches: |
---|
| 24 | * read README and HACKING! There a addition information on |
---|
| 25 | * the license of this document you need to read before you send |
---|
| 26 | * any patches. |
---|
| 27 | * |
---|
| 28 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
---|
| 29 | * or libpulse*: |
---|
| 30 | * The libs libroaresd, libroararts and libroarpulse link this lib |
---|
| 31 | * and are therefore GPL. Because of this it may be illigal to use |
---|
| 32 | * them with any software that uses libesd, libartsc or libpulse*. |
---|
| 33 | */ |
---|
| 34 | |
---|
[0] | 35 | #include "libroar.h" |
---|
| 36 | |
---|
[81] | 37 | #define MODE_LISTEN ROAR_SOCKET_MODE_LISTEN |
---|
| 38 | #define MODE_CONNECT ROAR_SOCKET_MODE_CONNECT |
---|
[0] | 39 | |
---|
| 40 | int roar_socket_new_tcp (void) { |
---|
[1359] | 41 | #ifdef ROAR_HAVE_IPV4 |
---|
| 42 | int fh; |
---|
[1084] | 43 | #ifndef ROAR_TARGET_WIN32 |
---|
[234] | 44 | int opt = IPTOS_LOWDELAY; |
---|
[1084] | 45 | #endif |
---|
[1154] | 46 | #ifdef TCP_NODELAY |
---|
| 47 | int t = 1; |
---|
| 48 | #endif |
---|
[0] | 49 | |
---|
| 50 | fh = socket(PF_INET, SOCK_STREAM, 0); |
---|
| 51 | |
---|
[1084] | 52 | #ifndef ROAR_TARGET_WIN32 |
---|
[234] | 53 | setsockopt(fh, IPPROTO_IP, IP_TOS, &opt, sizeof(int)); |
---|
[1084] | 54 | #endif |
---|
[1154] | 55 | #ifdef TCP_NODELAY |
---|
| 56 | setsockopt(fh, IPPROTO_TCP, TCP_NODELAY, &t, sizeof(int)); |
---|
| 57 | #endif |
---|
[234] | 58 | |
---|
[0] | 59 | return fh; |
---|
[1359] | 60 | #else |
---|
| 61 | return -1; |
---|
| 62 | #endif |
---|
[0] | 63 | } |
---|
| 64 | |
---|
[374] | 65 | int roar_socket_new_udp (void) { |
---|
[1359] | 66 | #ifdef ROAR_HAVE_IPV4 |
---|
[374] | 67 | int fh; |
---|
[1084] | 68 | #ifndef ROAR_TARGET_WIN32 |
---|
[374] | 69 | int opt = IPTOS_LOWDELAY; |
---|
[1084] | 70 | #endif |
---|
[374] | 71 | |
---|
| 72 | fh = socket(PF_INET, SOCK_DGRAM, 0); |
---|
| 73 | |
---|
[1084] | 74 | #ifndef ROAR_TARGET_WIN32 |
---|
[374] | 75 | setsockopt(fh, IPPROTO_IP, IP_TOS, &opt, sizeof(int)); |
---|
[1084] | 76 | #endif |
---|
[374] | 77 | |
---|
| 78 | return fh; |
---|
[1359] | 79 | #else |
---|
| 80 | return -1; |
---|
| 81 | #endif |
---|
[374] | 82 | } |
---|
| 83 | |
---|
[509] | 84 | int roar_socket_new_tcp6 (void) { |
---|
[1084] | 85 | #ifdef ROAR_HAVE_IPV6 |
---|
[509] | 86 | int fh; |
---|
| 87 | int opt = IPTOS_LOWDELAY; |
---|
| 88 | |
---|
| 89 | fh = socket(PF_INET6, SOCK_STREAM, 0); |
---|
| 90 | |
---|
| 91 | setsockopt(fh, IPPROTO_IP, IP_TOS, &opt, sizeof(int)); |
---|
| 92 | |
---|
| 93 | return fh; |
---|
| 94 | #else |
---|
| 95 | return -1; |
---|
| 96 | #endif |
---|
| 97 | } |
---|
| 98 | |
---|
| 99 | int roar_socket_new_udp6 (void) { |
---|
[1084] | 100 | #ifdef ROAR_HAVE_IPV6 |
---|
[509] | 101 | int fh; |
---|
| 102 | int opt = IPTOS_LOWDELAY; |
---|
| 103 | |
---|
| 104 | fh = socket(PF_INET6, SOCK_DGRAM, 0); |
---|
| 105 | |
---|
| 106 | setsockopt(fh, IPPROTO_IP, IP_TOS, &opt, sizeof(int)); |
---|
| 107 | |
---|
| 108 | return fh; |
---|
| 109 | #else |
---|
| 110 | return -1; |
---|
| 111 | #endif |
---|
| 112 | } |
---|
| 113 | |
---|
[0] | 114 | int roar_socket_new_unix (void) { |
---|
| 115 | int fh; |
---|
[752] | 116 | /* |
---|
[442] | 117 | #ifdef SO_PEERCRED |
---|
| 118 | int opt = 1; |
---|
| 119 | #endif |
---|
[752] | 120 | */ |
---|
[0] | 121 | |
---|
| 122 | fh = socket(AF_UNIX, SOCK_STREAM, 0); |
---|
| 123 | |
---|
[752] | 124 | /* |
---|
[442] | 125 | #ifdef SO_PEERCRED |
---|
[752] | 126 | // setsockopt(fh, SOL_SOCKET, SO_PASSCRED, &opt, sizeof(int)); |
---|
[442] | 127 | #endif |
---|
[752] | 128 | */ |
---|
[442] | 129 | |
---|
[0] | 130 | return fh; |
---|
| 131 | } |
---|
| 132 | |
---|
[873] | 133 | int roar_socket_decnet_set_timeout (int fh, time_t sec, int usec) { |
---|
| 134 | #ifdef ROAR_HAVE_LIBDNET |
---|
| 135 | struct timeval timeout = {sec, usec}; |
---|
| 136 | |
---|
| 137 | return setsockopt(fh, SOL_SOCKET, SO_SNDTIMEO, &timeout, sizeof(timeout)); |
---|
| 138 | #else |
---|
| 139 | return -1; |
---|
| 140 | #endif |
---|
| 141 | } |
---|
| 142 | |
---|
[968] | 143 | int roar_socket_recvbuf(int fh, int len) { |
---|
| 144 | if ( len < 256 ) len = 256; |
---|
| 145 | |
---|
| 146 | return setsockopt(fh, SOL_SOCKET, SO_RCVBUF, &len, sizeof(len)); |
---|
| 147 | } |
---|
| 148 | |
---|
[508] | 149 | int roar_socket_new_decnet_seqpacket (void) { |
---|
| 150 | #ifdef ROAR_HAVE_LIBDNET |
---|
| 151 | int fh; |
---|
| 152 | |
---|
| 153 | fh = socket(AF_DECnet, SOCK_SEQPACKET, DNPROTO_NSP); |
---|
| 154 | |
---|
[873] | 155 | roar_socket_decnet_set_timeout(fh, 300, 0); |
---|
| 156 | |
---|
[508] | 157 | return fh; |
---|
| 158 | #else |
---|
| 159 | return -1; |
---|
| 160 | #endif |
---|
| 161 | } |
---|
| 162 | |
---|
| 163 | |
---|
| 164 | int roar_socket_new_decnet_stream (void) { |
---|
| 165 | #ifdef ROAR_HAVE_LIBDNET |
---|
| 166 | int fh; |
---|
| 167 | |
---|
| 168 | fh = socket(AF_DECnet, SOCK_STREAM, DNPROTO_NSP); |
---|
| 169 | |
---|
[873] | 170 | roar_socket_decnet_set_timeout(fh, 300, 0); |
---|
| 171 | |
---|
[508] | 172 | return fh; |
---|
| 173 | #else |
---|
| 174 | return -1; |
---|
| 175 | #endif |
---|
| 176 | } |
---|
| 177 | |
---|
[528] | 178 | int roar_socket_new_ipxspx (void) { |
---|
| 179 | return -1; |
---|
| 180 | } |
---|
[508] | 181 | |
---|
[530] | 182 | int roar_socket_new_ipx (void) { |
---|
| 183 | #ifdef ROAR_HAVE_IPX |
---|
| 184 | return socket(AF_IPX, SOCK_DGRAM, AF_IPX); |
---|
| 185 | #else |
---|
| 186 | return -1; |
---|
| 187 | #endif |
---|
| 188 | } |
---|
| 189 | |
---|
| 190 | |
---|
[0] | 191 | int roar_socket_nonblock(int fh, int state) { |
---|
[1085] | 192 | #ifndef ROAR_TARGET_WIN32 |
---|
[0] | 193 | int flags; |
---|
| 194 | |
---|
| 195 | if ( (flags = fcntl(fh, F_GETFL, 0)) == -1 ) { |
---|
| 196 | ROAR_ERR("roar_socket_nonblock(fh=%i, state=%i): Can not read flags: %s", fh, state, strerror(errno)); |
---|
| 197 | ROAR_DBG("roar_socket_nonblock(fh=%i, state=%i) = -1", fh, state); |
---|
| 198 | return -1; |
---|
| 199 | } |
---|
| 200 | |
---|
[1119] | 201 | if ( !(flags & O_NONBLOCK) && state == ROAR_SOCKET_BLOCK ) |
---|
| 202 | return 0; |
---|
| 203 | |
---|
[0] | 204 | flags |= O_NONBLOCK; |
---|
| 205 | |
---|
| 206 | if ( state == ROAR_SOCKET_BLOCK ) |
---|
| 207 | flags -= O_NONBLOCK; |
---|
| 208 | |
---|
| 209 | if ( fcntl(fh, F_SETFL, flags) == -1 ) { |
---|
| 210 | ROAR_ERR("roar_socket_nonblock(fh=%i, state=%i): Can not set flags: %s", fh, state, strerror(errno)); |
---|
| 211 | ROAR_DBG("roar_socket_nonblock(fh=%i, state=%i) = -1", fh, state); |
---|
| 212 | return -1; |
---|
| 213 | } |
---|
| 214 | |
---|
| 215 | ROAR_DBG("roar_socket_nonblock(fh=%i, state=%i) = 0", fh, state); |
---|
| 216 | return 0; |
---|
[1085] | 217 | #else |
---|
| 218 | ROAR_WARN("roar_socket_nonblock(*): no nonblocking IO support on win32, use a real OS"); |
---|
| 219 | return -1; |
---|
| 220 | #endif |
---|
[0] | 221 | } |
---|
| 222 | |
---|
[375] | 223 | int roar_socket_dup_udp_local_end (int fh) { |
---|
[1085] | 224 | #ifndef ROAR_TARGET_WIN32 |
---|
[376] | 225 | int n = -1; |
---|
| 226 | int flags = -1; |
---|
| 227 | struct sockaddr_in socket_addr; |
---|
| 228 | socklen_t len = sizeof(struct sockaddr_in); |
---|
| 229 | |
---|
| 230 | if ( (flags = fcntl(fh, F_GETFL, 0)) == -1 ) { |
---|
| 231 | ROAR_WARN("roar_socket_dup_udp_local_end(fh=%i): Can not read flags: %s", fh, strerror(errno)); |
---|
| 232 | } |
---|
| 233 | |
---|
| 234 | if ( getsockname(fh, (struct sockaddr *)&socket_addr, &len) == -1 ) { |
---|
| 235 | return -1; |
---|
| 236 | } |
---|
| 237 | |
---|
| 238 | if ( socket_addr.sin_family != AF_INET ) { |
---|
| 239 | return -1; |
---|
| 240 | } |
---|
| 241 | |
---|
| 242 | n = roar_socket_new_udp(); |
---|
| 243 | |
---|
| 244 | if ( n == -1 ) |
---|
| 245 | return -1; |
---|
| 246 | |
---|
| 247 | // if ( mode_func(fh, (struct sockaddr *)&socket_addr, sizeof(struct sockaddr_in)) == -1 ) { |
---|
| 248 | if ( bind(n, (struct sockaddr *)&socket_addr, len) == -1 ) { |
---|
| 249 | close(n); |
---|
| 250 | return -1; |
---|
| 251 | } |
---|
| 252 | |
---|
| 253 | if ( flags != -1 ) { |
---|
| 254 | if ( fcntl(fh, F_SETFL, flags) == -1 ) { |
---|
| 255 | ROAR_WARN("roar_socket_dup_udp_local_end(fh=%i): Can not set flags: %s", fh, strerror(errno)); |
---|
| 256 | return -1; |
---|
| 257 | } |
---|
| 258 | } |
---|
| 259 | |
---|
| 260 | |
---|
| 261 | return n; |
---|
[1085] | 262 | #else |
---|
| 263 | ROAR_WARN("roar_socket_dup_udp_local_end(*): this function is not supported on win32, use a real OS"); |
---|
| 264 | return -1; |
---|
| 265 | #endif |
---|
[375] | 266 | } |
---|
| 267 | |
---|
[753] | 268 | |
---|
| 269 | #define _SCMR_CONTROLLEN (sizeof(struct cmsghdr) + sizeof(int)) |
---|
| 270 | int roar_socket_send_fh (int sock, int fh, char * mes, size_t len) { |
---|
[1085] | 271 | #ifndef ROAR_TARGET_WIN32 |
---|
[753] | 272 | struct iovec iov[1]; |
---|
| 273 | struct msghdr msg; |
---|
| 274 | char cmptr_buf[_SCMR_CONTROLLEN]; |
---|
| 275 | struct cmsghdr * cmptr = (struct cmsghdr *) cmptr_buf; |
---|
[754] | 276 | char localmes[1] = {0}; |
---|
[753] | 277 | |
---|
[759] | 278 | ROAR_DBG("roar_socket_send_fh(sock=%i, fh=%i, mes=%p, len=%u) = ?", sock, fh, mes, len); |
---|
| 279 | |
---|
[754] | 280 | if ( sock < 0 || fh < 0 ) |
---|
[753] | 281 | return -1; |
---|
| 282 | |
---|
[754] | 283 | if ( len == 0 ) { |
---|
| 284 | len = 1; |
---|
| 285 | mes = localmes; |
---|
| 286 | } |
---|
| 287 | |
---|
| 288 | memset(cmptr, 0, _SCMR_CONTROLLEN); |
---|
| 289 | |
---|
[753] | 290 | iov[0].iov_base = mes; |
---|
| 291 | iov[0].iov_len = len; |
---|
| 292 | msg.msg_iov = iov; |
---|
| 293 | msg.msg_iovlen = 1; |
---|
| 294 | msg.msg_name = NULL; |
---|
| 295 | msg.msg_namelen = 0; |
---|
| 296 | |
---|
| 297 | cmptr->cmsg_level = SOL_SOCKET; |
---|
| 298 | cmptr->cmsg_type = SCM_RIGHTS; |
---|
| 299 | cmptr->cmsg_len = _SCMR_CONTROLLEN; |
---|
| 300 | msg.msg_control = (caddr_t) cmptr; |
---|
| 301 | msg.msg_controllen = _SCMR_CONTROLLEN; |
---|
| 302 | *(int *)CMSG_DATA(cmptr) = fh; |
---|
| 303 | |
---|
| 304 | return sendmsg(sock, &msg, 0); |
---|
[1085] | 305 | #else |
---|
| 306 | ROAR_ERR("roar_socket_send_fh(*): There is no UNIX Domain Socket support in win32, download a real OS."); |
---|
| 307 | return -1; |
---|
| 308 | #endif |
---|
[753] | 309 | } |
---|
| 310 | |
---|
| 311 | int roar_socket_recv_fh (int sock, char * mes, size_t * len) { |
---|
[1085] | 312 | #ifndef ROAR_TARGET_WIN32 |
---|
[753] | 313 | struct iovec iov[1]; |
---|
| 314 | struct msghdr msg; |
---|
| 315 | char cmptr_buf[_SCMR_CONTROLLEN]; |
---|
| 316 | struct cmsghdr * cmptr = (struct cmsghdr *) cmptr_buf; |
---|
[754] | 317 | char localmes[1]; |
---|
| 318 | size_t locallen[1] = {1}; |
---|
[753] | 319 | |
---|
| 320 | if ( sock < 0 ) |
---|
| 321 | return -1; |
---|
| 322 | |
---|
[754] | 323 | if ( len == NULL ) { |
---|
| 324 | len = locallen; |
---|
| 325 | mes = localmes; |
---|
| 326 | } |
---|
| 327 | |
---|
[753] | 328 | iov[0].iov_base = mes; |
---|
| 329 | iov[0].iov_len = *len; |
---|
| 330 | msg.msg_iov = iov; |
---|
| 331 | msg.msg_iovlen = 1; |
---|
| 332 | msg.msg_name = NULL; |
---|
| 333 | msg.msg_namelen = 0; |
---|
| 334 | |
---|
| 335 | msg.msg_control = (caddr_t) cmptr; |
---|
| 336 | msg.msg_controllen = _SCMR_CONTROLLEN; |
---|
| 337 | |
---|
| 338 | if ( (*len = recvmsg(sock, &msg, 0)) == -1 ) |
---|
| 339 | return -1; |
---|
| 340 | |
---|
| 341 | if ( msg.msg_controllen != _SCMR_CONTROLLEN ) |
---|
| 342 | return -1; |
---|
| 343 | |
---|
| 344 | return *(int *)CMSG_DATA(cmptr); |
---|
[1085] | 345 | #else |
---|
| 346 | ROAR_ERR("roar_socket_recv_fh(*): There is no UNIX Domain Socket support in win32, download a real OS."); |
---|
| 347 | return -1; |
---|
| 348 | #endif |
---|
[753] | 349 | } |
---|
| 350 | |
---|
[0] | 351 | int roar_socket_listen (int type, char * host, int port) { |
---|
| 352 | return roar_socket_open(MODE_LISTEN, type, host, port); |
---|
| 353 | } |
---|
| 354 | |
---|
| 355 | int roar_socket_connect (char * host, int port) { |
---|
[2] | 356 | char * proxy_type = getenv("ROAR_PROXY"); |
---|
| 357 | |
---|
| 358 | if ( proxy_type == NULL || strcmp(proxy_type, "") == 0 ) { |
---|
| 359 | return roar_socket_open(MODE_CONNECT, ROAR_SOCKET_TYPE_UNKNOWN, host, port); |
---|
| 360 | } else { |
---|
[1087] | 361 | #ifdef ROAR_SUPPORT_PROXY |
---|
[2] | 362 | return roar_socket_open_proxy(MODE_CONNECT, ROAR_SOCKET_TYPE_UNKNOWN, host, port, proxy_type); |
---|
[1087] | 363 | #else |
---|
| 364 | ROAR_ERR("roar_socket_connect(host='%s', port=%i): no support for proxy code (proxy_type=%s)", host, port, proxy_type); |
---|
| 365 | return -1; |
---|
| 366 | #endif |
---|
[2] | 367 | } |
---|
[0] | 368 | } |
---|
| 369 | |
---|
[508] | 370 | |
---|
| 371 | int roar_socket_listen_decnet (char * object, int num) { |
---|
| 372 | #ifdef ROAR_HAVE_LIBDNET |
---|
| 373 | int fh = roar_socket_new_decnet_stream(); |
---|
| 374 | struct sockaddr_dn bind_sockaddr; |
---|
| 375 | |
---|
| 376 | if ( fh == -1 ) |
---|
| 377 | return -1; |
---|
| 378 | |
---|
| 379 | if ( !*object ) |
---|
| 380 | object = NULL; |
---|
| 381 | |
---|
| 382 | if ( (object && num) || (!*object && !num) ) { |
---|
| 383 | ROAR_WARN("roar_socket_listen_decnet(object='%s', num=%i): illegal address!", object, num); |
---|
| 384 | close(fh); |
---|
| 385 | return -1; |
---|
| 386 | } |
---|
| 387 | |
---|
| 388 | memset((void*)&bind_sockaddr, 0, sizeof(struct sockaddr_dn)); |
---|
| 389 | |
---|
| 390 | bind_sockaddr.sdn_family = AF_DECnet; |
---|
| 391 | bind_sockaddr.sdn_flags = 0; |
---|
| 392 | bind_sockaddr.sdn_objnum = num; |
---|
| 393 | |
---|
| 394 | if ( num ) { |
---|
| 395 | bind_sockaddr.sdn_objnamel = 0; |
---|
| 396 | } else { |
---|
| 397 | bind_sockaddr.sdn_objnamel = ROAR_dn_htons(strlen(object)); |
---|
[1068] | 398 | if ( bind_sockaddr.sdn_objnamel > DN_MAXOBJL ) |
---|
| 399 | bind_sockaddr.sdn_objnamel = DN_MAXOBJL; |
---|
| 400 | strncpy((char*)bind_sockaddr.sdn_objname, object, DN_MAXOBJL); |
---|
[508] | 401 | } |
---|
| 402 | |
---|
| 403 | if ( bind(fh, (struct sockaddr *) &bind_sockaddr, sizeof(bind_sockaddr)) == -1 ) { |
---|
| 404 | close(fh); |
---|
| 405 | return -1; |
---|
| 406 | } |
---|
| 407 | |
---|
| 408 | if ( listen(fh, 8) == -1 ) { |
---|
| 409 | close(fh); |
---|
| 410 | return -1; |
---|
| 411 | } |
---|
| 412 | |
---|
| 413 | return fh; |
---|
| 414 | #else |
---|
| 415 | return -1; |
---|
| 416 | #endif |
---|
| 417 | } |
---|
| 418 | |
---|
[521] | 419 | char * roar_socket_get_local_nodename(void) { |
---|
| 420 | #ifdef ROAR_HAVE_LIBDNET |
---|
| 421 | static char node[16] = {0}; |
---|
| 422 | struct dn_naddr *binaddr; |
---|
| 423 | struct nodeent *dp; |
---|
| 424 | |
---|
| 425 | if ( !node[0] ) { |
---|
| 426 | if ( (binaddr=getnodeadd()) == NULL) |
---|
| 427 | return NULL; |
---|
| 428 | |
---|
| 429 | if ( (dp=getnodebyaddr((char*)binaddr->a_addr, binaddr->a_len, PF_DECnet)) == NULL ) |
---|
| 430 | return NULL; |
---|
| 431 | |
---|
| 432 | strncpy(node, dp->n_name, 15); |
---|
| 433 | node[15] = 0; |
---|
| 434 | } |
---|
| 435 | |
---|
| 436 | return node; |
---|
| 437 | #else |
---|
| 438 | return NULL; |
---|
| 439 | #endif |
---|
| 440 | } |
---|
| 441 | |
---|
[0] | 442 | int roar_socket_open (int mode, int type, char * host, int port) { |
---|
| 443 | // int type = ROAR_SOCKET_TYPE_INET; |
---|
| 444 | int fh; |
---|
[531] | 445 | #ifdef ROAR_HAVE_IPX |
---|
| 446 | #define _NEED_OBJ |
---|
| 447 | int i; |
---|
| 448 | int ret; |
---|
| 449 | #endif |
---|
[512] | 450 | union { |
---|
[1359] | 451 | struct sockaddr sa; |
---|
[1361] | 452 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) |
---|
[512] | 453 | struct sockaddr_in in; |
---|
[1359] | 454 | #endif |
---|
[1090] | 455 | #ifdef ROAR_HAVE_UNIX |
---|
[512] | 456 | struct sockaddr_un un; |
---|
[1090] | 457 | #endif |
---|
[890] | 458 | #ifdef ROAR_HAVE_IPV6 |
---|
[514] | 459 | struct sockaddr_in6 in6; |
---|
[890] | 460 | #endif |
---|
[531] | 461 | #ifdef ROAR_HAVE_IPX |
---|
| 462 | struct sockaddr_ipx ipx; |
---|
| 463 | #endif |
---|
[512] | 464 | } socket_addr; |
---|
[1359] | 465 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) |
---|
[0] | 466 | struct hostent * he; |
---|
[1359] | 467 | #endif |
---|
[0] | 468 | //unsigned int host_div = 0; |
---|
| 469 | int (*mode_func)(int sockfd, const struct sockaddr *serv_addr, socklen_t addrlen) = connect; // default is to connect |
---|
[501] | 470 | #ifdef ROAR_HAVE_LIBDNET |
---|
[531] | 471 | #define _NEED_OBJ |
---|
| 472 | #endif |
---|
| 473 | #ifdef _NEED_OBJ |
---|
[501] | 474 | char obj[80]; |
---|
| 475 | char * del; |
---|
| 476 | #endif |
---|
[0] | 477 | |
---|
| 478 | if ( mode == MODE_LISTEN ) |
---|
| 479 | mode_func = bind; |
---|
| 480 | |
---|
| 481 | if ( type == ROAR_SOCKET_TYPE_UNKNOWN ) { |
---|
| 482 | type = ROAR_SOCKET_TYPE_INET; |
---|
[69] | 483 | if ( *host == '/' ) { |
---|
[0] | 484 | type = ROAR_SOCKET_TYPE_UNIX; |
---|
[69] | 485 | } else if ( strcmp(host, "+fork") == 0 ) { |
---|
| 486 | type = ROAR_SOCKET_TYPE_FORK; |
---|
[501] | 487 | } else if ( strstr(host, "::") != NULL ) { |
---|
| 488 | type = ROAR_SOCKET_TYPE_DECNET; |
---|
[531] | 489 | } else if ( host[strlen(host)-1] == ')' ) { |
---|
| 490 | type = ROAR_SOCKET_TYPE_IPX; |
---|
[69] | 491 | } |
---|
[0] | 492 | } |
---|
| 493 | |
---|
| 494 | |
---|
| 495 | ROAR_DBG("roar_socket_open(*): type=%s, host='%s', port=%i", |
---|
| 496 | type == ROAR_SOCKET_TYPE_UNIX ? "UNIX" : "INET", host, port); |
---|
| 497 | |
---|
[501] | 498 | if ( type == ROAR_SOCKET_TYPE_DECNET ) { |
---|
| 499 | #ifdef ROAR_HAVE_LIBDNET |
---|
[508] | 500 | ROAR_DBG("roar_socket_open(*): hostname for DECnet: host(%p)=%s", host, host); |
---|
[501] | 501 | del = strstr(host, "::"); |
---|
[508] | 502 | ROAR_DBG("roar_socket_open(*): hostname for DECnet: del(%p)=%s", del, del); |
---|
| 503 | |
---|
| 504 | if ( del == NULL ) { |
---|
| 505 | ROAR_WARN("roar_socket_open(*): invalid hostname for DECnet: %s", host); |
---|
| 506 | return -1; |
---|
| 507 | } |
---|
| 508 | |
---|
[501] | 509 | *del = 0; |
---|
| 510 | |
---|
| 511 | if ( *(del+2) == '#' ) { // assume we have node::#num |
---|
| 512 | port = atoi(del+2); |
---|
| 513 | } |
---|
| 514 | |
---|
| 515 | if ( port ) { |
---|
[1067] | 516 | snprintf(obj, 7, "%i", port); // no need for snprintf() as dec(port) is smaller than obj[] |
---|
[501] | 517 | } else { |
---|
| 518 | *obj = 0; |
---|
| 519 | strncat(obj, del+2, 79); |
---|
| 520 | } |
---|
| 521 | |
---|
[508] | 522 | if ( mode == MODE_LISTEN ) { |
---|
| 523 | fh = roar_socket_listen_decnet(obj, port); |
---|
| 524 | *del = ':'; |
---|
| 525 | return fh; |
---|
| 526 | // return -1; // listen sockets on DECnet are not supportet at the moment |
---|
| 527 | } else { |
---|
| 528 | // There is nothing wrong in this case to use dnet_conn() so we do. |
---|
[501] | 529 | fh = dnet_conn(host, obj, SOCK_STREAM, 0 ,0 ,0 , 0); |
---|
| 530 | *del = ':'; |
---|
| 531 | return fh; |
---|
[533] | 532 | } |
---|
[501] | 533 | #else |
---|
[533] | 534 | return -1; // no decnet support |
---|
[501] | 535 | #endif |
---|
| 536 | } |
---|
| 537 | |
---|
[1359] | 538 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) |
---|
[512] | 539 | memset(&socket_addr, 0, sizeof(socket_addr)); |
---|
[60] | 540 | memset(&he, 0, sizeof(he)); // FIXME: we have a valid pointer in here???? |
---|
[1359] | 541 | #endif |
---|
[0] | 542 | |
---|
| 543 | |
---|
[520] | 544 | if ( type == ROAR_SOCKET_TYPE_INET || type == ROAR_SOCKET_TYPE_INET6 ) { |
---|
[1359] | 545 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) |
---|
[0] | 546 | |
---|
| 547 | if ( (he = gethostbyname(host)) == NULL ) { |
---|
| 548 | ROAR_ERR("roar_socket_open(*): Can\'t resolve host name '%s'", |
---|
| 549 | host); |
---|
| 550 | return -1; |
---|
| 551 | } |
---|
| 552 | |
---|
[520] | 553 | memcpy((struct in_addr *)&socket_addr.in.sin_addr, he->h_addr, sizeof(struct in_addr)); |
---|
[0] | 554 | |
---|
[520] | 555 | /* set the connect information */ |
---|
| 556 | socket_addr.in.sin_family = AF_INET; |
---|
| 557 | socket_addr.in.sin_port = ROAR_HOST2NET16(port); |
---|
| 558 | |
---|
| 559 | fh = roar_socket_new_tcp(); |
---|
[0] | 560 | |
---|
[520] | 561 | if ( mode_func(fh, (struct sockaddr *)&socket_addr.in, sizeof(struct sockaddr_in)) == -1 ) { |
---|
| 562 | ROAR_DBG("roar_socket_open(*): Can not connect/bind: %s", strerror(errno)); |
---|
| 563 | close(fh); |
---|
| 564 | return -1; |
---|
| 565 | } |
---|
[0] | 566 | // hey! we have a socket... |
---|
[1359] | 567 | #else |
---|
| 568 | return -1; |
---|
| 569 | #endif |
---|
[69] | 570 | } else if ( type == ROAR_SOCKET_TYPE_UNIX ) { |
---|
[1090] | 571 | #ifdef ROAR_HAVE_UNIX |
---|
[512] | 572 | socket_addr.un.sun_family = AF_UNIX; |
---|
| 573 | strncpy(socket_addr.un.sun_path, host, sizeof(socket_addr.un.sun_path) - 1); |
---|
[60] | 574 | |
---|
[0] | 575 | fh = roar_socket_new_unix(); |
---|
[60] | 576 | |
---|
[512] | 577 | if ( mode_func(fh, (struct sockaddr *)&socket_addr.un, sizeof(struct sockaddr_un)) == -1 ) { |
---|
[60] | 578 | ROAR_DBG("roar_socket_open(*): Can not connect/bind: %s", strerror(errno)); |
---|
| 579 | close(fh); |
---|
| 580 | return -1; |
---|
| 581 | } |
---|
[1090] | 582 | #else |
---|
| 583 | ROAR_ERR("roar_socket_open(*): There is no UNIX Domain Socket support in win32, download a real OS."); |
---|
| 584 | return -1; |
---|
| 585 | #endif |
---|
[531] | 586 | } else if ( type == ROAR_SOCKET_TYPE_IPX ) { |
---|
[534] | 587 | #ifdef ROAR_HAVE_IPX |
---|
[531] | 588 | socket_addr.ipx.sipx_family = AF_IPX; |
---|
| 589 | |
---|
| 590 | obj[0] = 0; |
---|
| 591 | |
---|
| 592 | if ( (ret = sscanf(host, "%8x.%12s(%x)", &socket_addr.ipx.sipx_network, obj, |
---|
| 593 | (unsigned int *)&socket_addr.ipx.sipx_port)) < 2 ) { |
---|
| 594 | return -1; |
---|
| 595 | } else if ( ret == 2 ) { |
---|
| 596 | socket_addr.ipx.sipx_port = port; // Network Byte Order? |
---|
| 597 | } |
---|
| 598 | |
---|
| 599 | memset(socket_addr.ipx.sipx_node, 0, IPX_NODE_LEN); |
---|
| 600 | ret = strlen(obj); |
---|
| 601 | |
---|
| 602 | if ( ret % 2 ) // needs to be even at the moment |
---|
| 603 | return -1; |
---|
| 604 | |
---|
| 605 | fh = roar_socket_new_ipx(); |
---|
| 606 | |
---|
| 607 | close(fh); |
---|
| 608 | return -1; |
---|
[534] | 609 | #else |
---|
| 610 | return -1; |
---|
| 611 | #endif |
---|
[69] | 612 | } else if ( type == ROAR_SOCKET_TYPE_FORK ) { |
---|
| 613 | return roar_socket_open_fork(mode, host, port); |
---|
[75] | 614 | } else if ( type == ROAR_SOCKET_TYPE_FILE ) { |
---|
| 615 | return roar_socket_open_file(mode, host, port); |
---|
[69] | 616 | } else { |
---|
| 617 | return -1; |
---|
[0] | 618 | } |
---|
| 619 | |
---|
| 620 | if ( mode == MODE_LISTEN ) |
---|
| 621 | if ( listen(fh, ROAR_SOCKET_QUEUE_LEN) == -1 ) { |
---|
| 622 | close(fh); |
---|
| 623 | return -1; |
---|
| 624 | } |
---|
| 625 | |
---|
| 626 | return fh; |
---|
| 627 | } |
---|
| 628 | |
---|
[69] | 629 | int roar_socket_open_fork (int mode, char * host, int port) { |
---|
[1093] | 630 | #ifndef ROAR_TARGET_WIN32 |
---|
[69] | 631 | int socks[2]; |
---|
| 632 | int r; |
---|
| 633 | char fhstr[8]; |
---|
| 634 | |
---|
| 635 | if ( mode == MODE_LISTEN ) |
---|
| 636 | return -1; |
---|
| 637 | |
---|
| 638 | if ( socketpair(AF_UNIX, SOCK_STREAM, 0, socks) == -1 ) { |
---|
| 639 | return -1; |
---|
| 640 | } |
---|
| 641 | |
---|
| 642 | r = fork(); |
---|
| 643 | |
---|
| 644 | if ( r == -1 ) { // error! |
---|
| 645 | ROAR_ERR("roar_socket_open_fork(*): Can not fork: %s", strerror(errno)); |
---|
| 646 | close(socks[0]); |
---|
| 647 | close(socks[1]); |
---|
| 648 | return -1; |
---|
| 649 | } else if ( r == 0 ) { // we are the child |
---|
| 650 | close(socks[0]); |
---|
| 651 | |
---|
[70] | 652 | close(ROAR_STDIN ); // we do not want roard to have any standard input |
---|
| 653 | close(ROAR_STDOUT); // STDOUT is also not needed, so we close it, |
---|
| 654 | // but STDERR we keep open for error messages. |
---|
| 655 | |
---|
[69] | 656 | snprintf(fhstr, 7, "%i", socks[1]); |
---|
| 657 | |
---|
[548] | 658 | execlp("roard", "roard", "--no-listen", "--client-fh", fhstr, NULL); |
---|
[69] | 659 | |
---|
| 660 | // we are still alive? |
---|
| 661 | ROAR_ERR("roar_socket_open_fork(*): alive after exec(), that's bad!"); |
---|
| 662 | _exit(1); |
---|
| 663 | } else { // we are the parent |
---|
| 664 | close(socks[1]); |
---|
| 665 | return socks[0]; |
---|
| 666 | } |
---|
| 667 | |
---|
| 668 | return -1; |
---|
[1093] | 669 | #else |
---|
| 670 | ROAR_ERR("roar_socket_open_fork(*): There is no UNIX Domain Socket support in win32, download a real OS."); |
---|
| 671 | return -1; |
---|
| 672 | #endif |
---|
[69] | 673 | } |
---|
| 674 | |
---|
[75] | 675 | int roar_socket_open_file (int mode, char * host, int port) { |
---|
| 676 | int fh; |
---|
| 677 | |
---|
| 678 | if ( mode == MODE_LISTEN ) |
---|
| 679 | return -1; |
---|
| 680 | |
---|
| 681 | if ( (fh = open(host, O_RDONLY, 0644)) == -1 ) { |
---|
| 682 | ROAR_ERR("roar_socket_open_file(*): Can not open file %s: %s", host, strerror(errno)); |
---|
| 683 | } |
---|
| 684 | |
---|
| 685 | return fh; |
---|
| 686 | } |
---|
| 687 | |
---|
[2] | 688 | // --- [ PROXY CODE ] --- |
---|
| 689 | |
---|
| 690 | // generic proxy code: |
---|
| 691 | |
---|
[1087] | 692 | #ifdef ROAR_SUPPORT_PROXY |
---|
[2] | 693 | int roar_socket_open_proxy (int mode, int type, char * host, int port, char * proxy_type) { |
---|
[829] | 694 | int proxy_port = -1; |
---|
[2] | 695 | char proxy_host[ROAR_SOCKET_MAX_HOSTNAMELEN]; |
---|
[829] | 696 | char * proxy_addr = NULL; |
---|
[2] | 697 | int i; |
---|
[829] | 698 | int fh = -1; |
---|
[835] | 699 | char * user = NULL, * pw = NULL, * opts = NULL; |
---|
[836] | 700 | char * sep; |
---|
[838] | 701 | int no_fh = 0; |
---|
[1008] | 702 | char proxy_addr_buf[1024]; |
---|
[835] | 703 | static struct passwd * passwd; |
---|
[834] | 704 | int (* code)(int mode, int fh, char * host, int port, char * user, char * pw, char * opts) = NULL; |
---|
[2] | 705 | |
---|
[835] | 706 | if ( passwd == NULL ) { |
---|
| 707 | passwd = getpwuid(getuid()); |
---|
| 708 | } |
---|
| 709 | |
---|
| 710 | if ( passwd != NULL ) |
---|
| 711 | user = passwd->pw_name; |
---|
| 712 | |
---|
| 713 | if ( user == NULL ) |
---|
| 714 | user = getenv("USER"); |
---|
| 715 | |
---|
[2] | 716 | // TODO: change this so we support listen() proxys (ssh -R) |
---|
| 717 | if ( mode != MODE_CONNECT ) |
---|
| 718 | return -1; |
---|
| 719 | |
---|
[829] | 720 | if ( !strncmp(proxy_type, "socks", 5) ) { |
---|
[2] | 721 | proxy_addr = getenv("socks_proxy"); |
---|
| 722 | |
---|
| 723 | proxy_port = 9050; // TOR's default port |
---|
[832] | 724 | } else if ( !strcmp(proxy_type, "http") || !strcmp(proxy_type, "https") ) { |
---|
[830] | 725 | proxy_port = 8080; |
---|
[2] | 726 | |
---|
[832] | 727 | if ( (proxy_addr = getenv("http_proxy")) == NULL ) |
---|
| 728 | proxy_addr = getenv("https_proxy"); |
---|
| 729 | |
---|
[2] | 730 | if ( proxy_addr == NULL ) |
---|
| 731 | return -1; |
---|
| 732 | |
---|
[830] | 733 | if ( !strncmp(proxy_addr, "http://", 7) ) |
---|
| 734 | proxy_addr += 7; |
---|
[838] | 735 | } else if ( !strncmp(proxy_type, "ssh", 3) ) { |
---|
| 736 | proxy_port = 22; |
---|
| 737 | proxy_addr = getenv("ssh_proxy"); |
---|
| 738 | no_fh = 1; |
---|
[830] | 739 | } |
---|
[2] | 740 | |
---|
[1008] | 741 | proxy_addr_buf[1023] = 0; |
---|
| 742 | strncpy(proxy_addr_buf, proxy_addr, 1023); |
---|
| 743 | proxy_addr = proxy_addr_buf; |
---|
| 744 | |
---|
[837] | 745 | if ( (sep = strstr(proxy_type, "/")) != NULL ) |
---|
| 746 | opts = sep+1; |
---|
| 747 | |
---|
[830] | 748 | if ( proxy_addr == NULL ) |
---|
| 749 | return -1; |
---|
[2] | 750 | |
---|
[836] | 751 | if ( (sep = strstr(proxy_addr, "@")) != NULL ) { |
---|
| 752 | *sep = 0; |
---|
| 753 | user = proxy_addr; |
---|
| 754 | proxy_addr = sep+1; |
---|
| 755 | |
---|
| 756 | if ( (sep = strstr(user, ":")) != NULL ) { |
---|
| 757 | *sep = 0; |
---|
| 758 | pw = sep+1; |
---|
| 759 | } |
---|
| 760 | } |
---|
| 761 | |
---|
[1008] | 762 | ROAR_DBG("roar_socket_open_proxy(*): proxy_type='%s', opts='%s', user='%s', pw=(not shown), proxy_addr='%s'", proxy_type, opts, user, proxy_addr); |
---|
| 763 | |
---|
[830] | 764 | for (i = 0; proxy_addr[i] != 0 && proxy_addr[i] != ':' && i < ROAR_SOCKET_MAX_HOSTNAMELEN; i++) |
---|
| 765 | proxy_host[i] = proxy_addr[i]; |
---|
| 766 | proxy_host[i] = 0; |
---|
[2] | 767 | |
---|
[830] | 768 | if ( i == 0 ) // no hostname found |
---|
| 769 | return -1; |
---|
| 770 | |
---|
| 771 | if ( proxy_addr[i] == ':' ) |
---|
| 772 | proxy_port = atoi(&proxy_addr[i+1]); |
---|
| 773 | |
---|
[838] | 774 | if ( ! no_fh ) { |
---|
| 775 | if ( (fh = roar_socket_open(mode, type, proxy_host, proxy_port)) == -1) { |
---|
| 776 | return -1; |
---|
| 777 | } |
---|
[829] | 778 | } |
---|
[2] | 779 | |
---|
[829] | 780 | if ( !strcmp(proxy_type, "socks4a") ) { // for TOR, the only supported type at the moment |
---|
[833] | 781 | code = roar_socket_open_socks4a; |
---|
| 782 | } else if ( !strcmp(proxy_type, "socks4d") ) { // DECnet |
---|
| 783 | code = roar_socket_open_socks4d; |
---|
| 784 | } else if ( !strcmp(proxy_type, "socks4") ) { // good old SOCKS4 |
---|
| 785 | code = roar_socket_open_socks4; |
---|
| 786 | } else if ( !strcmp(proxy_type, "http") ) { // HTTP CONNECT |
---|
| 787 | code = roar_socket_open_http; |
---|
[839] | 788 | } else if ( !strncmp(proxy_type, "ssh", 3) ) { // SSH... |
---|
[1063] | 789 | #ifdef ROAR_HAVE_BIN_SSH |
---|
[839] | 790 | code = roar_socket_open_ssh; |
---|
[1063] | 791 | #else |
---|
| 792 | ROAR_ERR("roar_socket_open_proxy(*): No SSH support compiled in"); |
---|
| 793 | #endif |
---|
[833] | 794 | } else { |
---|
| 795 | return -1; // unknown type |
---|
| 796 | } |
---|
[2] | 797 | |
---|
[833] | 798 | if ( code != NULL ) { |
---|
[838] | 799 | if ( no_fh ) { |
---|
| 800 | fh = code(mode, fh, host, port, user, pw, opts); |
---|
| 801 | } else { |
---|
| 802 | if ( code(mode, fh, host, port, user, pw, opts) == -1 ) { |
---|
| 803 | close(fh); |
---|
| 804 | return -1; |
---|
| 805 | } |
---|
[829] | 806 | } |
---|
| 807 | |
---|
| 808 | return fh; |
---|
[833] | 809 | } |
---|
[829] | 810 | |
---|
[833] | 811 | close(fh); |
---|
| 812 | return -1; |
---|
[2] | 813 | } |
---|
| 814 | |
---|
| 815 | // protocoll dependet proxy code: |
---|
| 816 | |
---|
[834] | 817 | int roar_socket_open_socks4 (int mode, int fh, char * host, int port, char * user, char * pw, char * opts) { |
---|
[829] | 818 | struct hostent * he; |
---|
| 819 | |
---|
| 820 | if ( (he = gethostbyname(host)) == NULL ) { |
---|
| 821 | ROAR_ERR("roar_socket_open_socks4(*): Can\'t resolve host name '%s'", host); |
---|
| 822 | return -1; |
---|
| 823 | } |
---|
| 824 | |
---|
[834] | 825 | return roar_socket_open_socks4x(mode, fh, he->h_addr, port, NULL, 0, user); |
---|
[829] | 826 | } |
---|
| 827 | |
---|
[834] | 828 | int roar_socket_open_socks4a(int mode, int fh, char * host, int port, char * user, char * pw, char * opts) { |
---|
| 829 | return roar_socket_open_socks4x(mode, fh, "\0\0\0\1", port, host, strlen(host)+1, user); |
---|
[829] | 830 | } |
---|
| 831 | |
---|
[834] | 832 | int roar_socket_open_socks4d(int mode, int fh, char * host, int port, char * user, char * pw, char * opts) { |
---|
[829] | 833 | size_t len = strlen(host)+1; |
---|
| 834 | char * dp; |
---|
| 835 | |
---|
| 836 | if ( port == 0 ) { |
---|
| 837 | if ( (dp = strstr(host, "::")) == NULL ) |
---|
| 838 | return -1; |
---|
| 839 | |
---|
| 840 | len--; |
---|
| 841 | *dp = 0; |
---|
| 842 | memmove(dp+1, dp+2, len - (dp-host) - 1); |
---|
| 843 | } |
---|
| 844 | |
---|
[834] | 845 | return roar_socket_open_socks4x(mode, fh, "\0\2\0\0", port, host, len, user); |
---|
[829] | 846 | } |
---|
| 847 | |
---|
[834] | 848 | int roar_socket_open_socks4x(int mode, int fh, char host[4], int port, char * app, size_t app_len, char * user) { |
---|
[2] | 849 | char buf[9]; |
---|
[835] | 850 | int len; |
---|
[2] | 851 | |
---|
| 852 | buf[0] = 0x04; |
---|
| 853 | buf[1] = mode == MODE_CONNECT ? 0x01 : 0x02; |
---|
| 854 | *((uint16_t*)&buf[2]) = htons(port); |
---|
[829] | 855 | memcpy(buf+4, host, 4); |
---|
[835] | 856 | |
---|
| 857 | if ( user == NULL ) { |
---|
| 858 | buf[8] = 0x00; |
---|
| 859 | len = 9; |
---|
| 860 | } else { |
---|
| 861 | len = 8; |
---|
| 862 | } |
---|
[2] | 863 | |
---|
[835] | 864 | if ( write(fh, buf, len) != len ) |
---|
[2] | 865 | return -1; |
---|
| 866 | |
---|
[835] | 867 | if ( user != NULL ) { |
---|
| 868 | len = strlen(user) + 1; |
---|
| 869 | if ( write(fh, user, len) != len ) |
---|
| 870 | return -1; |
---|
| 871 | } |
---|
| 872 | |
---|
[829] | 873 | if ( app_len > 0 ) |
---|
| 874 | if ( write(fh, app, app_len) != app_len ) |
---|
| 875 | return -1; |
---|
[2] | 876 | |
---|
| 877 | if ( read(fh, buf, 8) != 8 ) |
---|
| 878 | return -1; |
---|
| 879 | |
---|
| 880 | if ( buf[1] != 0x5a ) |
---|
| 881 | return -1; |
---|
| 882 | |
---|
| 883 | return 0; |
---|
| 884 | } |
---|
| 885 | |
---|
[834] | 886 | int roar_socket_open_http (int mode, int fh, char * host, int port, char * user, char * pw, char * opts) { |
---|
[831] | 887 | char buf[1024]; |
---|
| 888 | int len; |
---|
| 889 | |
---|
| 890 | if ( port == 0 || host == NULL ) |
---|
| 891 | return -1; |
---|
| 892 | |
---|
| 893 | if ( *host == '/' ) // AF_UNIX |
---|
| 894 | return -1; |
---|
| 895 | |
---|
| 896 | if ( (len = snprintf(buf, 1024, "CONNECT %s:%i HTTP/1.0\r\nUser-Agent: libroar\r\n\r\n", host, port)) == -1 ) |
---|
| 897 | return -1; |
---|
| 898 | |
---|
| 899 | if ( write(fh, buf, len) != len ) |
---|
| 900 | return -1; |
---|
| 901 | |
---|
| 902 | while ( (len = read(fh, buf, 1024)) ) { |
---|
| 903 | if ( len == 1024 ) { // overlong lion |
---|
| 904 | return -1; |
---|
| 905 | } else if ( len == 2 && buf[0] == '\r' && buf[1] == '\n' ) { |
---|
| 906 | break; |
---|
| 907 | } else if ( len == 1 && (buf[0] == '\r' || buf[0] == '\n') ) { // bad proxy or devel trying to debug ;) |
---|
| 908 | break; |
---|
| 909 | } else if ( len >= 4 && buf[len-4] == '\r' && buf[len-3] == '\n' && buf[len-2] == '\r' && buf[len-1] == '\n' ) { |
---|
| 910 | break; |
---|
| 911 | } |
---|
| 912 | } |
---|
| 913 | |
---|
| 914 | return 0; |
---|
[830] | 915 | } |
---|
| 916 | |
---|
[839] | 917 | |
---|
[1063] | 918 | #ifdef ROAR_HAVE_BIN_SSH |
---|
[839] | 919 | int roar_socket_open_ssh (int mode, int fh, char * host, int port, char * user, char * pw, char * opts) { |
---|
| 920 | char * proxy_addr = getenv("ssh_proxy"); |
---|
| 921 | char * sep; |
---|
| 922 | char cmd[1024] = {0}, rcmd[1024] = {0}; |
---|
| 923 | int proxy_port = 22; |
---|
[840] | 924 | int use_socat = 0; |
---|
[839] | 925 | int r; |
---|
| 926 | int socks[2]; |
---|
| 927 | |
---|
| 928 | if ( host == NULL ) |
---|
| 929 | return -1; |
---|
| 930 | |
---|
| 931 | if ( *host == '/' ) |
---|
[840] | 932 | use_socat = 1; |
---|
[839] | 933 | |
---|
| 934 | if ( mode == MODE_LISTEN ) |
---|
| 935 | return -1; |
---|
| 936 | |
---|
| 937 | if ( proxy_addr == NULL ) |
---|
| 938 | return -1; |
---|
| 939 | |
---|
[840] | 940 | if ( opts != NULL ) { |
---|
| 941 | if ( !strcmp(opts, "socat") ) { |
---|
| 942 | use_socat = 1; |
---|
| 943 | } else if ( !strcmp(opts, "netcat") ) { |
---|
| 944 | use_socat = 0; |
---|
| 945 | } else { |
---|
| 946 | return -1; |
---|
| 947 | } |
---|
| 948 | } |
---|
| 949 | |
---|
[1008] | 950 | ROAR_DBG("roar_socket_open_ssh(*): proxy_addr='%s'", proxy_addr); |
---|
| 951 | |
---|
[839] | 952 | if ( (sep = strstr(proxy_addr, "@")) != NULL ) |
---|
| 953 | proxy_addr = sep+1; |
---|
| 954 | |
---|
| 955 | if ( (sep = strstr(proxy_addr, ":")) != NULL ) { |
---|
| 956 | *sep = 0; |
---|
| 957 | proxy_port = atoi(sep+1); |
---|
| 958 | } |
---|
| 959 | |
---|
| 960 | |
---|
| 961 | if ( !strcmp(host, "+fork") ) { |
---|
[1068] | 962 | strncpy(rcmd, "roard --no-listen --client-fh 0", 32); |
---|
[839] | 963 | } else { |
---|
[840] | 964 | if ( use_socat ) { |
---|
| 965 | if ( *host == '/' ) { |
---|
| 966 | snprintf(rcmd, 1023, "socat stdio unix-connect:\"%s\"", host); |
---|
| 967 | } else { |
---|
| 968 | snprintf(rcmd, 1023, "socat stdio tcp:\"%s\":%i", host, port); |
---|
| 969 | } |
---|
| 970 | } else { |
---|
| 971 | snprintf(rcmd, 1023, "$(which netcat nc 2> /dev/null | grep -v \" \" | head -n 1) \"%s\" %i", host, port); |
---|
| 972 | } |
---|
| 973 | |
---|
[839] | 974 | rcmd[1023] = 0; |
---|
| 975 | } |
---|
| 976 | |
---|
[1008] | 977 | ROAR_DBG("roar_socket_open_ssh(*): proxy_port=%i, user='%s', proxy_addr='%s'", proxy_port, user, proxy_addr); |
---|
[1033] | 978 | ROAR_DBG("roar_socket_open_ssh(*): rcmd: %s", rcmd); |
---|
[1063] | 979 | snprintf(cmd, 1023, ROAR_HAVE_BIN_SSH " -p %i -l '%s' '%s' '%s'", proxy_port, user, proxy_addr, rcmd); |
---|
[839] | 980 | cmd[1023] = 0; |
---|
| 981 | |
---|
| 982 | |
---|
| 983 | if ( socketpair(AF_UNIX, SOCK_STREAM, 0, socks) == -1 ) { |
---|
| 984 | return -1; |
---|
| 985 | } |
---|
| 986 | |
---|
| 987 | r = fork(); |
---|
| 988 | |
---|
| 989 | if ( r == -1 ) { // error! |
---|
| 990 | ROAR_ERR("roar_socket_open_ssh(*): Can not fork: %s", strerror(errno)); |
---|
| 991 | close(socks[0]); |
---|
| 992 | close(socks[1]); |
---|
| 993 | return -1; |
---|
| 994 | } else if ( r == 0 ) { // we are the child |
---|
| 995 | close(socks[0]); |
---|
| 996 | |
---|
| 997 | close(ROAR_STDIN ); // we do not want roard to have any standard input |
---|
| 998 | close(ROAR_STDOUT); // STDOUT is also not needed, so we close it, |
---|
| 999 | // but STDERR we keep open for error messages. |
---|
| 1000 | |
---|
| 1001 | dup2(socks[1], 0); |
---|
| 1002 | dup2(socks[1], 1); |
---|
| 1003 | |
---|
| 1004 | execlp("sh", "sh", "-c", cmd, NULL); |
---|
| 1005 | |
---|
| 1006 | // we are still alive? |
---|
| 1007 | ROAR_ERR("roar_socket_open_ssh(*): alive after exec(), that's bad!"); |
---|
| 1008 | _exit(1); |
---|
| 1009 | } else { // we are the parent |
---|
| 1010 | close(socks[1]); |
---|
| 1011 | return socks[0]; |
---|
| 1012 | } |
---|
| 1013 | return -1; |
---|
| 1014 | } |
---|
[1063] | 1015 | #endif |
---|
[839] | 1016 | |
---|
[1087] | 1017 | #endif // ROAR_SUPPORT_PROXY |
---|
| 1018 | |
---|
[0] | 1019 | //ll |
---|