The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1 | /* Copyright (C) 2007-2008 The Android Open Source Project |
| 2 | ** |
| 3 | ** This software is licensed under the terms of the GNU General Public |
| 4 | ** License version 2, as published by the Free Software Foundation, and |
| 5 | ** may be copied, distributed, and modified under those terms. |
| 6 | ** |
| 7 | ** This program is distributed in the hope that it will be useful, |
| 8 | ** but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | ** GNU General Public License for more details. |
| 11 | */ |
David 'Digit' Turner | 4e024bb | 2010-09-22 14:19:28 +0200 | [diff] [blame] | 12 | #ifdef __linux__ /* Recent versions of glibc only define EAI_NODATA, which is an |
| 13 | extension to the POSIX standard, if _GNU_SOURCE is defined. */ |
| 14 | # define _GNU_SOURCE 1 |
| 15 | #endif |
| 16 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 17 | #include "sockets.h" |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 18 | #include <fcntl.h> |
| 19 | #include <stddef.h> |
| 20 | #include "qemu_debug.h" |
David 'Digit' Turner | ce0f4b0 | 2010-03-25 11:11:29 -0700 | [diff] [blame] | 21 | #include "qemu-char.h" |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 22 | #include <stdlib.h> |
| 23 | #include <string.h> |
| 24 | #include "android/utils/path.h" |
David 'Digit' Turner | 3e7a928 | 2009-05-14 11:25:52 +0200 | [diff] [blame] | 25 | #include "android/utils/debug.h" |
David 'Digit' Turner | ce0f4b0 | 2010-03-25 11:11:29 -0700 | [diff] [blame] | 26 | #include "android/utils/misc.h" |
David 'Digit' Turner | 18fe86e | 2010-10-19 08:07:11 +0200 | [diff] [blame] | 27 | #include "android/utils/system.h" |
David 'Digit' Turner | 3e7a928 | 2009-05-14 11:25:52 +0200 | [diff] [blame] | 28 | |
| 29 | #define D(...) VERBOSE_PRINT(socket,__VA_ARGS__) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 30 | |
| 31 | #ifdef _WIN32 |
| 32 | # define xxWIN32_LEAN_AND_MEAN |
| 33 | # include <windows.h> |
| 34 | # include <winsock2.h> |
| 35 | # include <ws2tcpip.h> |
| 36 | #else /* !_WIN32 */ |
| 37 | # include <sys/ioctl.h> |
| 38 | # include <sys/socket.h> |
| 39 | # include <netinet/in.h> |
| 40 | # include <netinet/tcp.h> |
David 'Digit' Turner | 4e024bb | 2010-09-22 14:19:28 +0200 | [diff] [blame] | 41 | # include <netdb.h> |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 42 | # if HAVE_UNIX_SOCKETS |
| 43 | # include <sys/un.h> |
| 44 | # ifndef UNIX_PATH_MAX |
| 45 | # define UNIX_PATH_MAX (sizeof(((struct sockaddr_un*)0)->sun_path)-1) |
| 46 | # endif |
| 47 | # endif |
| 48 | #endif /* !_WIN32 */ |
| 49 | |
| 50 | |
| 51 | |
| 52 | /* QSOCKET_CALL is used to deal with the fact that EINTR happens pretty |
| 53 | * easily in QEMU since we use SIGALRM to implement periodic timers |
| 54 | */ |
| 55 | #ifdef _WIN32 |
| 56 | # define QSOCKET_CALL(_ret,_cmd) \ |
| 57 | do { _ret = (_cmd); } while ( _ret < 0 && WSAGetLastError() == WSAEINTR ) |
| 58 | #else |
| 59 | # define QSOCKET_CALL(_ret,_cmd) \ |
David 'Digit' Turner | 7410e8a | 2009-05-20 10:57:56 +0200 | [diff] [blame] | 60 | do { \ |
| 61 | errno = 0; \ |
| 62 | do { _ret = (_cmd); } while ( _ret < 0 && errno == EINTR ); \ |
| 63 | } while (0); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 64 | #endif |
| 65 | |
| 66 | #ifdef _WIN32 |
| 67 | |
| 68 | #include <errno.h> |
| 69 | |
| 70 | static int winsock_error; |
| 71 | |
| 72 | #define WINSOCK_ERRORS_LIST \ |
| 73 | EE(WSA_INVALID_HANDLE,EINVAL,"invalid handle") \ |
| 74 | EE(WSA_NOT_ENOUGH_MEMORY,ENOMEM,"not enough memory") \ |
| 75 | EE(WSA_INVALID_PARAMETER,EINVAL,"invalid parameter") \ |
| 76 | EE(WSAEINTR,EINTR,"interrupted function call") \ |
David 'Digit' Turner | ce0f4b0 | 2010-03-25 11:11:29 -0700 | [diff] [blame] | 77 | EE(WSAEALREADY,EALREADY,"operation already in progress") \ |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 78 | EE(WSAEBADF,EBADF,"bad file descriptor") \ |
| 79 | EE(WSAEACCES,EACCES,"permission denied") \ |
| 80 | EE(WSAEFAULT,EFAULT,"bad address") \ |
| 81 | EE(WSAEINVAL,EINVAL,"invalid argument") \ |
| 82 | EE(WSAEMFILE,EMFILE,"too many opened files") \ |
David 'Digit' Turner | ce0f4b0 | 2010-03-25 11:11:29 -0700 | [diff] [blame] | 83 | EE(WSAEWOULDBLOCK,EWOULDBLOCK,"resource temporarily unavailable") \ |
| 84 | EE(WSAEINPROGRESS,EINPROGRESS,"operation now in progress") \ |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 85 | EE(WSAEALREADY,EAGAIN,"operation already in progress") \ |
| 86 | EE(WSAENOTSOCK,EBADF,"socket operation not on socket") \ |
| 87 | EE(WSAEDESTADDRREQ,EDESTADDRREQ,"destination address required") \ |
| 88 | EE(WSAEMSGSIZE,EMSGSIZE,"message too long") \ |
| 89 | EE(WSAEPROTOTYPE,EPROTOTYPE,"wrong protocol type for socket") \ |
| 90 | EE(WSAENOPROTOOPT,ENOPROTOOPT,"bad protocol option") \ |
| 91 | EE(WSAEADDRINUSE,EADDRINUSE,"address already in use") \ |
| 92 | EE(WSAEADDRNOTAVAIL,EADDRNOTAVAIL,"cannot assign requested address") \ |
| 93 | EE(WSAENETDOWN,ENETDOWN,"network is down") \ |
| 94 | EE(WSAENETUNREACH,ENETUNREACH,"network unreachable") \ |
| 95 | EE(WSAENETRESET,ENETRESET,"network dropped connection on reset") \ |
| 96 | EE(WSAECONNABORTED,ECONNABORTED,"software caused connection abort") \ |
| 97 | EE(WSAECONNRESET,ECONNRESET,"connection reset by peer") \ |
| 98 | EE(WSAENOBUFS,ENOBUFS,"no buffer space available") \ |
| 99 | EE(WSAEISCONN,EISCONN,"socket is already connected") \ |
| 100 | EE(WSAENOTCONN,ENOTCONN,"socket is not connected") \ |
| 101 | EE(WSAESHUTDOWN,ESHUTDOWN,"cannot send after socket shutdown") \ |
| 102 | EE(WSAETOOMANYREFS,ETOOMANYREFS,"too many references") \ |
| 103 | EE(WSAETIMEDOUT,ETIMEDOUT,"connection timed out") \ |
| 104 | EE(WSAECONNREFUSED,ECONNREFUSED,"connection refused") \ |
| 105 | EE(WSAELOOP,ELOOP,"cannot translate name") \ |
| 106 | EE(WSAENAMETOOLONG,ENAMETOOLONG,"name too long") \ |
| 107 | EE(WSAEHOSTDOWN,EHOSTDOWN,"host is down") \ |
| 108 | EE(WSAEHOSTUNREACH,EHOSTUNREACH,"no route to host") \ |
| 109 | |
| 110 | typedef struct { |
| 111 | int winsock; |
| 112 | int unix; |
| 113 | const char* string; |
| 114 | } WinsockError; |
| 115 | |
| 116 | static const WinsockError _winsock_errors[] = { |
| 117 | #define EE(w,u,s) { w, u, s }, |
| 118 | WINSOCK_ERRORS_LIST |
| 119 | #undef EE |
| 120 | { -1, -1, NULL } |
| 121 | }; |
| 122 | |
| 123 | /* this function reads the latest winsock error code and updates |
| 124 | * errno to a matching value. It also returns the new value of |
| 125 | * errno. |
| 126 | */ |
| 127 | static int |
| 128 | _fix_errno( void ) |
| 129 | { |
| 130 | const WinsockError* werr = _winsock_errors; |
| 131 | int unix = EINVAL; /* generic error code */ |
| 132 | |
David 'Digit' Turner | 26722dd | 2011-02-24 16:40:20 +0100 | [diff] [blame] | 133 | winsock_error = WSAGetLastError(); |
David 'Digit' Turner | 4e024bb | 2010-09-22 14:19:28 +0200 | [diff] [blame] | 134 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 135 | for ( ; werr->string != NULL; werr++ ) { |
| 136 | if (werr->winsock == winsock_error) { |
| 137 | unix = werr->unix; |
| 138 | break; |
| 139 | } |
David 'Digit' Turner | 3e7a928 | 2009-05-14 11:25:52 +0200 | [diff] [blame] | 140 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 141 | errno = unix; |
| 142 | return -1; |
| 143 | } |
| 144 | |
| 145 | static int |
| 146 | _set_errno( int code ) |
| 147 | { |
| 148 | winsock_error = -1; |
| 149 | errno = code; |
| 150 | return -1; |
| 151 | } |
| 152 | |
| 153 | /* this function returns a string describing the latest Winsock error */ |
| 154 | const char* |
| 155 | _errno_str(void) |
| 156 | { |
| 157 | const WinsockError* werr = _winsock_errors; |
David 'Digit' Turner | ce0f4b0 | 2010-03-25 11:11:29 -0700 | [diff] [blame] | 158 | const char* result = NULL; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 159 | |
| 160 | for ( ; werr->string; werr++ ) { |
| 161 | if (werr->winsock == winsock_error) { |
| 162 | result = werr->string; |
| 163 | break; |
| 164 | } |
| 165 | } |
| 166 | |
David 'Digit' Turner | ce0f4b0 | 2010-03-25 11:11:29 -0700 | [diff] [blame] | 167 | if (result == NULL) { |
| 168 | result = tempstr_format( |
| 169 | "Unkown socket error (Winsock=0x%08x) errno=%d: %s", |
| 170 | winsock_error, errno, strerror(errno)); |
| 171 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 172 | return result; |
| 173 | } |
| 174 | #else |
| 175 | static int |
| 176 | _fix_errno( void ) |
| 177 | { |
| 178 | return -1; |
| 179 | } |
| 180 | |
| 181 | static int |
| 182 | _set_errno( int code ) |
| 183 | { |
| 184 | errno = code; |
| 185 | return -1; |
| 186 | } |
| 187 | #endif |
| 188 | |
| 189 | /* socket types */ |
| 190 | |
| 191 | static int |
| 192 | socket_family_to_bsd( SocketFamily family ) |
| 193 | { |
| 194 | switch (family) { |
| 195 | case SOCKET_INET: return AF_INET; |
| 196 | case SOCKET_IN6: return AF_INET6; |
| 197 | #if HAVE_UNIX_SOCKETS |
| 198 | case SOCKET_UNIX: return AF_LOCAL; |
| 199 | #endif |
| 200 | default: return -1; |
| 201 | } |
| 202 | } |
| 203 | |
| 204 | static int |
| 205 | socket_type_to_bsd( SocketType type ) |
| 206 | { |
| 207 | switch (type) { |
| 208 | case SOCKET_DGRAM: return SOCK_DGRAM; |
| 209 | case SOCKET_STREAM: return SOCK_STREAM; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 210 | default: return 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 211 | } |
| 212 | } |
| 213 | |
| 214 | static SocketType |
| 215 | socket_type_from_bsd( int type ) |
| 216 | { |
| 217 | switch (type) { |
| 218 | case SOCK_DGRAM: return SOCKET_DGRAM; |
| 219 | case SOCK_STREAM: return SOCKET_STREAM; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 220 | default: return (SocketType) SOCKET_UNSPEC; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 221 | } |
| 222 | } |
| 223 | |
| 224 | #if 0 |
| 225 | static int |
| 226 | socket_type_check( SocketType type ) |
| 227 | { |
| 228 | return (type == SOCKET_DGRAM || type == SOCKET_STREAM); |
| 229 | } |
| 230 | #endif |
| 231 | |
David 'Digit' Turner | b6f4df8 | 2010-08-25 09:03:09 -0700 | [diff] [blame] | 232 | typedef union { |
| 233 | struct sockaddr sa[1]; |
| 234 | struct sockaddr_in in[1]; |
| 235 | #if HAVE_IN6_SOCKETS |
| 236 | struct sockaddr_in6 in6[1]; |
| 237 | #endif |
| 238 | #if HAVE_UNIX_SOCKETS |
| 239 | struct sockaddr_un un[1]; |
| 240 | #endif |
| 241 | } sockaddr_storage; |
| 242 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 243 | /* socket addresses */ |
| 244 | |
| 245 | void |
| 246 | sock_address_init_inet( SockAddress* a, uint32_t ip, uint16_t port ) |
| 247 | { |
| 248 | a->family = SOCKET_INET; |
| 249 | a->u.inet.port = port; |
| 250 | a->u.inet.address = ip; |
| 251 | } |
| 252 | |
| 253 | void |
| 254 | sock_address_init_in6 ( SockAddress* a, const uint8_t* ip6[16], uint16_t port ) |
| 255 | { |
| 256 | a->family = SOCKET_IN6; |
| 257 | a->u.in6.port = port; |
| 258 | memcpy( a->u.in6.address, ip6, sizeof(a->u.in6.address) ); |
| 259 | } |
| 260 | |
| 261 | void |
| 262 | sock_address_init_unix( SockAddress* a, const char* path ) |
| 263 | { |
| 264 | a->family = SOCKET_UNIX; |
| 265 | a->u._unix.path = strdup(path ? path : ""); |
| 266 | a->u._unix.owner = 1; |
| 267 | } |
| 268 | |
| 269 | void sock_address_done( SockAddress* a ) |
| 270 | { |
| 271 | if (a->family == SOCKET_UNIX && a->u._unix.owner) { |
| 272 | a->u._unix.owner = 0; |
| 273 | free((char*)a->u._unix.path); |
| 274 | } |
| 275 | } |
| 276 | |
| 277 | static char* |
| 278 | format_char( char* buf, char* end, int c ) |
| 279 | { |
David 'Digit' Turner | 0b7cd6c | 2009-07-10 00:54:05 +0200 | [diff] [blame] | 280 | if (buf < end) { |
| 281 | if (buf+1 == end) { |
| 282 | *buf++ = 0; |
| 283 | } else { |
| 284 | *buf++ = (char) c; |
| 285 | *buf = 0; |
| 286 | } |
| 287 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 288 | return buf; |
| 289 | } |
| 290 | |
| 291 | static char* |
| 292 | format_str( char* buf, char* end, const char* str ) |
| 293 | { |
| 294 | int len = strlen(str); |
| 295 | int avail = end - buf; |
| 296 | |
| 297 | if (len > avail) |
| 298 | len = avail; |
| 299 | |
| 300 | memcpy( buf, str, len ); |
| 301 | buf += len; |
| 302 | |
| 303 | if (buf == end) |
| 304 | buf[-1] = 0; |
| 305 | else |
| 306 | buf[0] = 0; |
| 307 | |
| 308 | return buf; |
| 309 | } |
| 310 | |
| 311 | static char* |
| 312 | format_unsigned( char* buf, char* end, unsigned val ) |
| 313 | { |
| 314 | char temp[16]; |
| 315 | int nn; |
| 316 | |
| 317 | for ( nn = 0; val != 0; nn++ ) { |
| 318 | int rem = val % 10; |
| 319 | temp[nn] = '0'+rem; |
| 320 | val /= 10; |
| 321 | } |
| 322 | |
| 323 | if (nn == 0) |
| 324 | temp[nn++] = '0'; |
| 325 | |
| 326 | while (nn > 0) |
| 327 | buf = format_char(buf, end, temp[--nn]); |
| 328 | |
| 329 | return buf; |
| 330 | } |
| 331 | |
| 332 | static char* |
| 333 | format_hex( char* buf, char* end, unsigned val, int ndigits ) |
| 334 | { |
| 335 | int shift = 4*ndigits; |
| 336 | static const char hex[16] = "0123456789abcdef"; |
| 337 | |
| 338 | while (shift >= 0) { |
| 339 | buf = format_char(buf, end, hex[(val >> shift) & 15]); |
| 340 | shift -= 4; |
| 341 | } |
| 342 | return buf; |
| 343 | } |
| 344 | |
| 345 | static char* |
| 346 | format_ip4( char* buf, char* end, uint32_t ip ) |
| 347 | { |
| 348 | buf = format_unsigned( buf, end, (unsigned)(ip >> 24) ); |
| 349 | buf = format_char( buf, end, '.'); |
| 350 | buf = format_unsigned( buf, end, (unsigned)((ip >> 16) & 255)); |
| 351 | buf = format_char( buf, end, '.'); |
| 352 | buf = format_unsigned( buf, end, (unsigned)((ip >> 8) & 255)); |
| 353 | buf = format_char( buf, end, '.'); |
| 354 | buf = format_unsigned( buf, end, (unsigned)(ip & 255)); |
| 355 | return buf; |
| 356 | } |
| 357 | |
| 358 | static char* |
| 359 | format_ip6( char* buf, char* end, const uint8_t* ip6 ) |
| 360 | { |
| 361 | int nn; |
| 362 | for (nn = 0; nn < 8; nn++) { |
| 363 | int val = (ip6[0] << 16) | ip6[1]; |
| 364 | ip6 += 2; |
| 365 | if (nn > 0) |
| 366 | buf = format_char(buf, end, ':'); |
| 367 | if (val == 0) |
| 368 | continue; |
| 369 | buf = format_hex(buf, end, val, 4); |
| 370 | } |
| 371 | return buf; |
| 372 | } |
| 373 | |
| 374 | const char* |
| 375 | sock_address_to_string( const SockAddress* a ) |
| 376 | { |
| 377 | static char buf0[MAX_PATH]; |
David 'Digit' Turner | 0b7cd6c | 2009-07-10 00:54:05 +0200 | [diff] [blame] | 378 | char *buf = buf0, *end = buf + sizeof(buf0); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 379 | |
| 380 | switch (a->family) { |
| 381 | case SOCKET_INET: |
| 382 | buf = format_ip4( buf, end, a->u.inet.address ); |
| 383 | buf = format_char( buf, end, ':' ); |
| 384 | buf = format_unsigned( buf, end, (unsigned) a->u.inet.port ); |
| 385 | break; |
| 386 | |
| 387 | case SOCKET_IN6: |
| 388 | buf = format_ip6( buf, end, a->u.in6.address ); |
| 389 | buf = format_char( buf, end, ':' ); |
| 390 | buf = format_unsigned( buf, end, (unsigned) a->u.in6.port ); |
| 391 | break; |
| 392 | |
| 393 | case SOCKET_UNIX: |
| 394 | buf = format_str( buf, end, a->u._unix.path ); |
| 395 | break; |
| 396 | |
| 397 | default: |
| 398 | return NULL; |
| 399 | } |
| 400 | |
| 401 | return buf0; |
| 402 | } |
| 403 | |
| 404 | int |
| 405 | sock_address_equal( const SockAddress* a, const SockAddress* b ) |
| 406 | { |
| 407 | if (a->family != b->family) |
| 408 | return 0; |
| 409 | |
| 410 | switch (a->family) { |
| 411 | case SOCKET_INET: |
| 412 | return (a->u.inet.address == b->u.inet.address && |
| 413 | a->u.inet.port == b->u.inet.port); |
| 414 | |
| 415 | case SOCKET_IN6: |
| 416 | return (!memcmp(a->u.in6.address, b->u.in6.address, 16) && |
| 417 | a->u.in6.port == b->u.in6.port); |
| 418 | |
| 419 | case SOCKET_UNIX: |
| 420 | return (!strcmp(a->u._unix.path, b->u._unix.path)); |
| 421 | |
| 422 | default: |
| 423 | return 0; |
| 424 | } |
| 425 | } |
| 426 | |
| 427 | int |
| 428 | sock_address_get_port( const SockAddress* a ) |
| 429 | { |
| 430 | switch (a->family) { |
| 431 | case SOCKET_INET: |
| 432 | return a->u.inet.port; |
| 433 | case SOCKET_IN6: |
| 434 | return a->u.in6.port; |
| 435 | default: |
| 436 | return -1; |
| 437 | } |
| 438 | } |
| 439 | |
| 440 | void |
| 441 | sock_address_set_port( SockAddress* a, uint16_t port ) |
| 442 | { |
| 443 | switch (a->family) { |
| 444 | case SOCKET_INET: |
| 445 | a->u.inet.port = port; |
| 446 | break; |
| 447 | case SOCKET_IN6: |
| 448 | a->u.in6.port = port; |
| 449 | break; |
| 450 | default: |
| 451 | ; |
| 452 | } |
| 453 | } |
| 454 | |
| 455 | const char* |
| 456 | sock_address_get_path( const SockAddress* a ) |
| 457 | { |
| 458 | if (a->family == SOCKET_UNIX) |
| 459 | return a->u._unix.path; |
| 460 | else |
| 461 | return NULL; |
| 462 | } |
| 463 | |
| 464 | int |
| 465 | sock_address_get_ip( const SockAddress* a ) |
| 466 | { |
| 467 | if (a->family == SOCKET_INET) |
| 468 | return a->u.inet.address; |
| 469 | |
| 470 | return -1; |
| 471 | } |
| 472 | |
| 473 | #if 0 |
| 474 | char* |
| 475 | bufprint_sock_address( char* p, char* end, const SockAddress* a ) |
| 476 | { |
| 477 | switch (a->family) { |
| 478 | case SOCKET_INET: |
| 479 | { |
| 480 | uint32_t ip = a->u.inet.address; |
| 481 | |
| 482 | return bufprint( p, end, "%d.%d.%d.%d:%d", |
| 483 | (ip >> 24) & 255, (ip >> 16) & 255, |
| 484 | (ip >> 8) & 255, ip & 255, |
| 485 | a->u.inet.port ); |
| 486 | } |
| 487 | case SOCKET_IN6: |
| 488 | { |
| 489 | int nn = 0; |
| 490 | const char* column = ""; |
| 491 | const uint8_t* tab = a->u.in6.address; |
| 492 | for (nn = 0; nn < 16; nn += 2) { |
| 493 | p = bufprint(p, end, "%s%04x", column, (tab[n] << 8) | tab[n+1]); |
| 494 | column = ":"; |
| 495 | } |
| 496 | return bufprint(p, end, ":%d", a->u.in6.port); |
| 497 | } |
| 498 | case SOCKET_UNIX: |
| 499 | { |
| 500 | return bufprint(p, end, "%s", a->u._unix.path); |
| 501 | } |
| 502 | default: |
| 503 | return p; |
| 504 | } |
| 505 | } |
| 506 | #endif |
| 507 | |
David 'Digit' Turner | b6f4df8 | 2010-08-25 09:03:09 -0700 | [diff] [blame] | 508 | static int |
David 'Digit' Turner | 4e024bb | 2010-09-22 14:19:28 +0200 | [diff] [blame] | 509 | sock_address_to_bsd( const SockAddress* a, sockaddr_storage* paddress, socklen_t *psize ) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 510 | { |
| 511 | switch (a->family) { |
| 512 | case SOCKET_INET: |
| 513 | { |
David 'Digit' Turner | b6f4df8 | 2010-08-25 09:03:09 -0700 | [diff] [blame] | 514 | struct sockaddr_in* dst = paddress->in; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 515 | |
| 516 | *psize = sizeof(*dst); |
| 517 | |
| 518 | memset( paddress, 0, *psize ); |
| 519 | |
| 520 | dst->sin_family = AF_INET; |
| 521 | dst->sin_port = htons(a->u.inet.port); |
| 522 | dst->sin_addr.s_addr = htonl(a->u.inet.address); |
| 523 | } |
| 524 | break; |
| 525 | |
| 526 | #if HAVE_IN6_SOCKETS |
| 527 | case SOCKET_IN6: |
| 528 | { |
David 'Digit' Turner | b6f4df8 | 2010-08-25 09:03:09 -0700 | [diff] [blame] | 529 | struct sockaddr_in6* dst = paddress->in6; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 530 | |
| 531 | *psize = sizeof(*dst); |
| 532 | |
| 533 | memset( paddress, 0, *psize ); |
| 534 | |
| 535 | dst->sin6_family = AF_INET6; |
| 536 | dst->sin6_port = htons(a->u.in6.port); |
| 537 | memcpy( dst->sin6_addr.s6_addr, a->u.in6.address, 16 ); |
| 538 | } |
| 539 | break; |
| 540 | #endif /* HAVE_IN6_SOCKETS */ |
| 541 | |
| 542 | #if HAVE_UNIX_SOCKETS |
| 543 | case SOCKET_UNIX: |
| 544 | { |
| 545 | int slen = strlen(a->u._unix.path); |
David 'Digit' Turner | b6f4df8 | 2010-08-25 09:03:09 -0700 | [diff] [blame] | 546 | struct sockaddr_un* dst = paddress->un; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 547 | |
| 548 | if (slen >= UNIX_PATH_MAX) |
| 549 | return -1; |
| 550 | |
David 'Digit' Turner | b6f4df8 | 2010-08-25 09:03:09 -0700 | [diff] [blame] | 551 | memset( dst, 0, sizeof(*dst) ); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 552 | |
| 553 | dst->sun_family = AF_LOCAL; |
| 554 | memcpy( dst->sun_path, a->u._unix.path, slen ); |
| 555 | dst->sun_path[slen] = 0; |
| 556 | |
| 557 | *psize = (char*)&dst->sun_path[slen+1] - (char*)dst; |
| 558 | } |
| 559 | break; |
| 560 | #endif /* HAVE_UNIX_SOCKETS */ |
| 561 | |
| 562 | default: |
| 563 | return _set_errno(EINVAL); |
| 564 | } |
| 565 | |
| 566 | return 0; |
| 567 | } |
| 568 | |
David 'Digit' Turner | b6f4df8 | 2010-08-25 09:03:09 -0700 | [diff] [blame] | 569 | static int |
David 'Digit' Turner | 4e024bb | 2010-09-22 14:19:28 +0200 | [diff] [blame] | 570 | sock_address_from_bsd( SockAddress* a, const void* from, size_t fromlen ) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 571 | { |
David 'Digit' Turner | 4e024bb | 2010-09-22 14:19:28 +0200 | [diff] [blame] | 572 | switch (((struct sockaddr *)from)->sa_family) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 573 | case AF_INET: |
| 574 | { |
David 'Digit' Turner | 4e024bb | 2010-09-22 14:19:28 +0200 | [diff] [blame] | 575 | const struct sockaddr_in* src = from; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 576 | |
| 577 | if (fromlen < sizeof(*src)) |
| 578 | return _set_errno(EINVAL); |
| 579 | |
| 580 | a->family = SOCKET_INET; |
| 581 | a->u.inet.port = ntohs(src->sin_port); |
| 582 | a->u.inet.address = ntohl(src->sin_addr.s_addr); |
| 583 | } |
| 584 | break; |
| 585 | |
| 586 | #ifdef HAVE_IN6_SOCKETS |
| 587 | case AF_INET6: |
| 588 | { |
David 'Digit' Turner | 4e024bb | 2010-09-22 14:19:28 +0200 | [diff] [blame] | 589 | const struct sockaddr_in6* src = from; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 590 | |
| 591 | if (fromlen < sizeof(*src)) |
| 592 | return _set_errno(EINVAL); |
| 593 | |
| 594 | a->family = SOCKET_IN6; |
| 595 | a->u.in6.port = ntohs(src->sin6_port); |
| 596 | memcpy(a->u.in6.address, src->sin6_addr.s6_addr, 16); |
| 597 | } |
| 598 | break; |
| 599 | #endif |
| 600 | |
| 601 | #ifdef HAVE_UNIX_SOCKETS |
| 602 | case AF_LOCAL: |
| 603 | { |
David 'Digit' Turner | 4e024bb | 2010-09-22 14:19:28 +0200 | [diff] [blame] | 604 | const struct sockaddr_un* src = from; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 605 | char* end; |
| 606 | |
| 607 | if (fromlen < sizeof(*src)) |
| 608 | return _set_errno(EINVAL); |
| 609 | |
| 610 | /* check that the path is zero-terminated */ |
| 611 | end = memchr(src->sun_path, 0, UNIX_PATH_MAX); |
| 612 | if (end == NULL) |
| 613 | return _set_errno(EINVAL); |
| 614 | |
| 615 | a->family = SOCKET_UNIX; |
| 616 | a->u._unix.owner = 1; |
| 617 | a->u._unix.path = strdup(src->sun_path); |
| 618 | } |
| 619 | break; |
| 620 | #endif |
| 621 | |
| 622 | default: |
| 623 | return _set_errno(EINVAL); |
| 624 | } |
| 625 | return 0; |
| 626 | } |
| 627 | |
| 628 | |
| 629 | int |
| 630 | sock_address_init_resolve( SockAddress* a, const char* hostname, uint16_t port, int preferIn6 ) |
| 631 | { |
| 632 | struct addrinfo hints[1]; |
| 633 | struct addrinfo* res; |
David 'Digit' Turner | 4e024bb | 2010-09-22 14:19:28 +0200 | [diff] [blame] | 634 | int ret; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 635 | |
| 636 | memset(hints, 0, sizeof(hints)); |
| 637 | hints->ai_family = preferIn6 ? AF_INET6 : AF_UNSPEC; |
| 638 | |
David Turner | 669c479 | 2009-04-13 17:58:45 -0700 | [diff] [blame] | 639 | ret = getaddrinfo(hostname, NULL, hints, &res); |
| 640 | if (ret != 0) { |
| 641 | int err; |
| 642 | |
| 643 | switch (ret) { |
| 644 | case EAI_AGAIN: /* server is down */ |
| 645 | case EAI_FAIL: /* server is sick */ |
| 646 | err = EHOSTDOWN; |
| 647 | break; |
| 648 | |
Nick Pelly | f5be61d | 2009-04-24 15:28:40 -0700 | [diff] [blame] | 649 | #ifdef EAI_NODATA |
David Turner | 669c479 | 2009-04-13 17:58:45 -0700 | [diff] [blame] | 650 | case EAI_NODATA: |
Nick Pelly | f5be61d | 2009-04-24 15:28:40 -0700 | [diff] [blame] | 651 | #endif |
David Turner | 669c479 | 2009-04-13 17:58:45 -0700 | [diff] [blame] | 652 | case EAI_NONAME: |
| 653 | err = ENOENT; |
| 654 | break; |
| 655 | |
| 656 | case EAI_MEMORY: |
| 657 | err = ENOMEM; |
| 658 | break; |
| 659 | |
| 660 | default: |
| 661 | err = EINVAL; |
| 662 | } |
| 663 | return _set_errno(err); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 664 | } |
| 665 | |
David 'Digit' Turner | 3e7a928 | 2009-05-14 11:25:52 +0200 | [diff] [blame] | 666 | /* Parse the returned list of addresses. */ |
| 667 | { |
| 668 | struct addrinfo* res_ipv4 = NULL; |
| 669 | struct addrinfo* res_ipv6 = NULL; |
| 670 | struct addrinfo* r; |
| 671 | |
| 672 | /* If preferIn6 is false, we stop on the first IPv4 address, |
| 673 | * otherwise, we stop on the first IPv6 one |
| 674 | */ |
| 675 | for (r = res; r != NULL; r = r->ai_next) { |
| 676 | if (r->ai_family == AF_INET && res_ipv4 == NULL) { |
| 677 | res_ipv4 = r; |
| 678 | if (!preferIn6) |
| 679 | break; |
| 680 | } |
| 681 | else if (r->ai_family == AF_INET6 && res_ipv6 == NULL) { |
| 682 | res_ipv6 = r; |
| 683 | if (preferIn6) |
| 684 | break; |
| 685 | } |
| 686 | } |
| 687 | |
| 688 | /* Select the best address in 'r', which will be NULL |
| 689 | * if there is no corresponding address. |
| 690 | */ |
| 691 | if (preferIn6) { |
| 692 | r = res_ipv6; |
| 693 | if (r == NULL) |
| 694 | r = res_ipv4; |
| 695 | } else { |
| 696 | r = res_ipv4; |
| 697 | if (r == NULL) |
| 698 | r = res_ipv6; |
| 699 | } |
| 700 | |
| 701 | if (r == NULL) { |
| 702 | ret = _set_errno(ENOENT); |
| 703 | goto Exit; |
| 704 | } |
| 705 | |
| 706 | /* Convert to a SockAddress */ |
| 707 | ret = sock_address_from_bsd( a, r->ai_addr, r->ai_addrlen ); |
| 708 | if (ret < 0) |
| 709 | goto Exit; |
| 710 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 711 | |
| 712 | /* need to set the port */ |
| 713 | switch (a->family) { |
| 714 | case SOCKET_INET: a->u.inet.port = port; break; |
| 715 | case SOCKET_IN6: a->u.in6.port = port; break; |
| 716 | default: ; |
| 717 | } |
| 718 | |
David 'Digit' Turner | 3e7a928 | 2009-05-14 11:25:52 +0200 | [diff] [blame] | 719 | Exit: |
| 720 | freeaddrinfo(res); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 721 | return ret; |
| 722 | } |
| 723 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 724 | /* The Winsock headers for mingw lack some definitions */ |
| 725 | #ifndef AI_ADDRCONFIG |
| 726 | # define AI_ADDRCONFIG 0 |
| 727 | #endif |
| 728 | |
| 729 | SockAddress** |
| 730 | sock_address_list_create( const char* hostname, |
| 731 | const char* port, |
| 732 | unsigned flags ) |
| 733 | { |
| 734 | SockAddress** list = NULL; |
| 735 | SockAddress* addr; |
| 736 | int nn, count, ret; |
| 737 | struct addrinfo ai, *res, *e; |
| 738 | |
| 739 | memset(&ai, 0, sizeof(ai)); |
| 740 | ai.ai_flags |= AI_ADDRCONFIG; |
| 741 | ai.ai_family = PF_UNSPEC; |
| 742 | |
| 743 | if (flags & SOCKET_LIST_FORCE_INET) |
| 744 | ai.ai_family = PF_INET; |
| 745 | else if (flags & SOCKET_LIST_FORCE_IN6) |
| 746 | ai.ai_family = PF_INET6; |
| 747 | |
| 748 | if (flags & SOCKET_LIST_PASSIVE) |
| 749 | ai.ai_flags |= AI_PASSIVE; |
| 750 | else |
| 751 | ai.ai_flags |= AI_CANONNAME; |
| 752 | |
David 'Digit' Turner | c611a19 | 2010-12-22 22:30:20 +0100 | [diff] [blame] | 753 | if (flags & SOCKET_LIST_DGRAM) |
| 754 | ai.ai_socktype = SOCK_DGRAM; |
| 755 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 756 | while (1) { |
| 757 | struct addrinfo hints = ai; |
| 758 | |
| 759 | ret = getaddrinfo(hostname, port, &hints, &res); |
| 760 | if (ret == 0) |
| 761 | break; |
| 762 | |
| 763 | switch (ret) { |
David 'Digit' Turner | 4e024bb | 2010-09-22 14:19:28 +0200 | [diff] [blame] | 764 | #ifdef EAI_ADDRFAMILY |
| 765 | case EAI_ADDRFAMILY: |
| 766 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 767 | case EAI_NODATA: |
| 768 | _set_errno(ENOENT); |
| 769 | break; |
| 770 | case EAI_FAMILY: |
| 771 | _set_errno(EAFNOSUPPORT); |
| 772 | break; |
| 773 | case EAI_AGAIN: |
| 774 | _set_errno(EAGAIN); |
| 775 | break; |
David 'Digit' Turner | 4e024bb | 2010-09-22 14:19:28 +0200 | [diff] [blame] | 776 | #ifdef EAI_SYSTEM |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 777 | case EAI_SYSTEM: |
| 778 | if (errno == EINTR) |
| 779 | continue; |
| 780 | break; |
David 'Digit' Turner | 4e024bb | 2010-09-22 14:19:28 +0200 | [diff] [blame] | 781 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 782 | default: |
| 783 | _set_errno(EINVAL); |
| 784 | } |
| 785 | return NULL; |
| 786 | } |
| 787 | |
| 788 | /* allocate result list */ |
| 789 | for (count = 0, e = res; e != NULL; e = e->ai_next) |
| 790 | count += 1; |
| 791 | |
David 'Digit' Turner | 18fe86e | 2010-10-19 08:07:11 +0200 | [diff] [blame] | 792 | AARRAY_NEW(list, count+1); |
| 793 | AARRAY_NEW(addr, count); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 794 | |
| 795 | for (nn = 0, e = res; e != NULL; e = e->ai_next) { |
| 796 | |
| 797 | ret = sock_address_from_bsd(addr, e->ai_addr, e->ai_addrlen); |
| 798 | if (ret < 0) |
| 799 | continue; |
| 800 | |
| 801 | list[nn++] = addr++; |
| 802 | } |
| 803 | list[nn] = NULL; |
| 804 | freeaddrinfo(res); |
| 805 | return list; |
| 806 | } |
| 807 | |
Vladimir Chtchetkine | 50eef01 | 2010-11-24 08:30:47 -0800 | [diff] [blame] | 808 | SockAddress** |
| 809 | sock_address_list_create2(const char* host_and_port, unsigned flags ) |
| 810 | { |
| 811 | char host_name[512]; |
| 812 | const char* actual_host_name = "localhost"; |
| 813 | // Parse host and port name. |
| 814 | const char* port_name = strchr(host_and_port, ':'); |
| 815 | if (port_name != NULL) { |
| 816 | int to_copy = MIN(sizeof(host_name)-1, port_name - host_and_port); |
| 817 | if (to_copy != 0) { |
| 818 | memcpy(host_name, host_and_port, to_copy); |
| 819 | host_name[to_copy] = '\0'; |
| 820 | actual_host_name = host_name; |
| 821 | port_name++; |
| 822 | } else { |
| 823 | return NULL; |
| 824 | } |
| 825 | } else { |
| 826 | port_name = host_and_port; |
| 827 | } |
| 828 | // Make sure that port_name is not empty. |
| 829 | if (port_name[0] == '\0') { |
| 830 | return NULL; |
| 831 | } |
| 832 | return sock_address_list_create(actual_host_name, port_name, flags); |
| 833 | } |
| 834 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 835 | void |
| 836 | sock_address_list_free( SockAddress** list ) |
| 837 | { |
| 838 | int nn; |
| 839 | SockAddress* addr; |
| 840 | |
| 841 | if (list == NULL) |
| 842 | return; |
| 843 | |
| 844 | addr = list[0]; |
| 845 | for (nn = 0; list[nn] != NULL; nn++) { |
| 846 | sock_address_done(list[nn]); |
| 847 | list[nn] = NULL; |
| 848 | } |
David 'Digit' Turner | 18fe86e | 2010-10-19 08:07:11 +0200 | [diff] [blame] | 849 | AFREE(addr); |
| 850 | AFREE(list); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 851 | } |
| 852 | |
| 853 | int |
| 854 | sock_address_get_numeric_info( SockAddress* a, |
| 855 | char* host, |
| 856 | size_t hostlen, |
| 857 | char* serv, |
| 858 | size_t servlen ) |
| 859 | { |
| 860 | struct sockaddr* saddr; |
| 861 | socklen_t slen; |
| 862 | int ret; |
| 863 | |
| 864 | switch (a->family) { |
| 865 | case SOCKET_INET: |
| 866 | saddr = (struct sockaddr*) &a->u.inet.address; |
| 867 | slen = sizeof(a->u.inet.address); |
| 868 | break; |
| 869 | |
| 870 | #if HAVE_IN6_SOCKET |
| 871 | case SOCKET_IN6: |
| 872 | saddr = (struct sockaddr*) &a->u.in6.address; |
| 873 | slen = sizeof(a->u.in6.address); |
| 874 | break; |
| 875 | #endif |
| 876 | default: |
| 877 | return _set_errno(EINVAL); |
| 878 | } |
| 879 | |
| 880 | ret = getnameinfo( saddr, slen, host, hostlen, serv, servlen, |
| 881 | NI_NUMERICHOST | NI_NUMERICSERV ); |
| 882 | |
| 883 | switch (ret) { |
| 884 | case 0: |
| 885 | break; |
| 886 | case EAI_AGAIN: |
| 887 | ret = EAGAIN; |
| 888 | break; |
| 889 | default: |
| 890 | ret = EINVAL; |
| 891 | } |
| 892 | return ret; |
| 893 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 894 | |
| 895 | int |
| 896 | socket_create( SocketFamily family, SocketType type ) |
| 897 | { |
| 898 | int ret; |
| 899 | int sfamily = socket_family_to_bsd(family); |
| 900 | int stype = socket_type_to_bsd(type); |
| 901 | |
| 902 | if (sfamily < 0 || stype < 0) { |
| 903 | return _set_errno(EINVAL); |
| 904 | } |
| 905 | |
| 906 | QSOCKET_CALL(ret, socket(sfamily, stype, 0)); |
| 907 | if (ret < 0) |
| 908 | return _fix_errno(); |
| 909 | |
| 910 | return ret; |
| 911 | } |
| 912 | |
| 913 | |
| 914 | int |
| 915 | socket_create_inet( SocketType type ) |
| 916 | { |
| 917 | return socket_create( SOCKET_INET, type ); |
| 918 | } |
| 919 | |
| 920 | #if HAVE_IN6_SOCKETS |
| 921 | int |
| 922 | socket_create_in6 ( SocketType type ) |
| 923 | { |
| 924 | return socket_create( SOCKET_IN6, type ); |
| 925 | } |
| 926 | #endif |
| 927 | |
| 928 | #if HAVE_UNIX_SOCKETS |
| 929 | int |
| 930 | socket_create_unix( SocketType type ) |
| 931 | { |
| 932 | return socket_create( SOCKET_UNIX, type ); |
| 933 | } |
| 934 | #endif |
| 935 | |
| 936 | int socket_can_read(int fd) |
| 937 | { |
| 938 | #ifdef _WIN32 |
| 939 | unsigned long opt; |
| 940 | |
| 941 | if (ioctlsocket(fd, FIONREAD, &opt) < 0) |
| 942 | return 0; |
| 943 | |
| 944 | return opt; |
| 945 | #else |
| 946 | int opt; |
| 947 | |
| 948 | if (ioctl(fd, FIONREAD, &opt) < 0) |
| 949 | return 0; |
| 950 | |
| 951 | return opt; |
| 952 | #endif |
| 953 | } |
| 954 | |
| 955 | #define SOCKET_CALL(cmd) \ |
| 956 | int ret; \ |
| 957 | QSOCKET_CALL(ret, (cmd)); \ |
| 958 | if (ret < 0) \ |
| 959 | return _fix_errno(); \ |
| 960 | return ret; \ |
| 961 | |
| 962 | int |
| 963 | socket_send(int fd, const void* buf, int buflen) |
| 964 | { |
| 965 | SOCKET_CALL(send(fd, buf, buflen, 0)) |
| 966 | } |
| 967 | |
| 968 | int |
| 969 | socket_send_oob( int fd, const void* buf, int buflen ) |
| 970 | { |
| 971 | SOCKET_CALL(send(fd, buf, buflen, MSG_OOB)); |
| 972 | } |
| 973 | |
| 974 | int |
| 975 | socket_sendto(int fd, const void* buf, int buflen, const SockAddress* to) |
| 976 | { |
David 'Digit' Turner | b6f4df8 | 2010-08-25 09:03:09 -0700 | [diff] [blame] | 977 | sockaddr_storage sa; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 978 | socklen_t salen; |
| 979 | |
| 980 | if (sock_address_to_bsd(to, &sa, &salen) < 0) |
| 981 | return -1; |
| 982 | |
David 'Digit' Turner | b6f4df8 | 2010-08-25 09:03:09 -0700 | [diff] [blame] | 983 | SOCKET_CALL(sendto(fd, buf, buflen, 0, sa.sa, salen)); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 984 | } |
| 985 | |
| 986 | int |
| 987 | socket_recv(int fd, void* buf, int len) |
| 988 | { |
| 989 | SOCKET_CALL(recv(fd, buf, len, 0)); |
| 990 | } |
| 991 | |
| 992 | int |
| 993 | socket_recvfrom(int fd, void* buf, int len, SockAddress* from) |
| 994 | { |
David 'Digit' Turner | b6f4df8 | 2010-08-25 09:03:09 -0700 | [diff] [blame] | 995 | sockaddr_storage sa; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 996 | socklen_t salen = sizeof(sa); |
| 997 | int ret; |
| 998 | |
David 'Digit' Turner | b6f4df8 | 2010-08-25 09:03:09 -0700 | [diff] [blame] | 999 | QSOCKET_CALL(ret,recvfrom(fd,buf,len,0,sa.sa,&salen)); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1000 | if (ret < 0) |
| 1001 | return _fix_errno(); |
| 1002 | |
| 1003 | if (sock_address_from_bsd(from, &sa, salen) < 0) |
| 1004 | return -1; |
| 1005 | |
| 1006 | return ret; |
| 1007 | } |
| 1008 | |
| 1009 | int |
| 1010 | socket_connect( int fd, const SockAddress* address ) |
| 1011 | { |
David 'Digit' Turner | b6f4df8 | 2010-08-25 09:03:09 -0700 | [diff] [blame] | 1012 | sockaddr_storage addr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1013 | socklen_t addrlen; |
| 1014 | |
| 1015 | if (sock_address_to_bsd(address, &addr, &addrlen) < 0) |
| 1016 | return -1; |
| 1017 | |
David 'Digit' Turner | b6f4df8 | 2010-08-25 09:03:09 -0700 | [diff] [blame] | 1018 | SOCKET_CALL(connect(fd,addr.sa,addrlen)); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1019 | } |
| 1020 | |
| 1021 | int |
| 1022 | socket_bind( int fd, const SockAddress* address ) |
| 1023 | { |
David 'Digit' Turner | b6f4df8 | 2010-08-25 09:03:09 -0700 | [diff] [blame] | 1024 | sockaddr_storage addr; |
| 1025 | socklen_t addrlen; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1026 | |
| 1027 | if (sock_address_to_bsd(address, &addr, &addrlen) < 0) |
| 1028 | return -1; |
| 1029 | |
David 'Digit' Turner | b6f4df8 | 2010-08-25 09:03:09 -0700 | [diff] [blame] | 1030 | SOCKET_CALL(bind(fd, addr.sa, addrlen)); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1031 | } |
| 1032 | |
| 1033 | int |
| 1034 | socket_get_address( int fd, SockAddress* address ) |
| 1035 | { |
David 'Digit' Turner | b6f4df8 | 2010-08-25 09:03:09 -0700 | [diff] [blame] | 1036 | sockaddr_storage addr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1037 | socklen_t addrlen = sizeof(addr); |
| 1038 | int ret; |
| 1039 | |
David 'Digit' Turner | b6f4df8 | 2010-08-25 09:03:09 -0700 | [diff] [blame] | 1040 | QSOCKET_CALL(ret, getsockname(fd, addr.sa, &addrlen)); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1041 | if (ret < 0) |
| 1042 | return _fix_errno(); |
| 1043 | |
| 1044 | return sock_address_from_bsd(address, &addr, addrlen); |
| 1045 | } |
| 1046 | |
| 1047 | int |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1048 | socket_get_peer_address( int fd, SockAddress* address ) |
| 1049 | { |
David 'Digit' Turner | b6f4df8 | 2010-08-25 09:03:09 -0700 | [diff] [blame] | 1050 | sockaddr_storage addr; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1051 | socklen_t addrlen = sizeof(addr); |
| 1052 | int ret; |
| 1053 | |
David 'Digit' Turner | b6f4df8 | 2010-08-25 09:03:09 -0700 | [diff] [blame] | 1054 | QSOCKET_CALL(ret, getpeername(fd, addr.sa, &addrlen)); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1055 | if (ret < 0) |
| 1056 | return _fix_errno(); |
| 1057 | |
| 1058 | return sock_address_from_bsd(address, &addr, addrlen); |
| 1059 | } |
| 1060 | |
| 1061 | int |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1062 | socket_listen( int fd, int backlog ) |
| 1063 | { |
| 1064 | SOCKET_CALL(listen(fd, backlog)); |
| 1065 | } |
| 1066 | |
| 1067 | int |
| 1068 | socket_accept( int fd, SockAddress* address ) |
| 1069 | { |
David 'Digit' Turner | b6f4df8 | 2010-08-25 09:03:09 -0700 | [diff] [blame] | 1070 | sockaddr_storage addr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1071 | socklen_t addrlen = sizeof(addr); |
| 1072 | int ret; |
| 1073 | |
David 'Digit' Turner | b6f4df8 | 2010-08-25 09:03:09 -0700 | [diff] [blame] | 1074 | QSOCKET_CALL(ret, accept(fd, addr.sa, &addrlen)); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1075 | if (ret < 0) |
| 1076 | return _fix_errno(); |
| 1077 | |
| 1078 | if (address) { |
| 1079 | if (sock_address_from_bsd(address, &addr, addrlen) < 0) { |
| 1080 | socket_close(ret); |
| 1081 | return -1; |
| 1082 | } |
| 1083 | } |
| 1084 | return ret; |
| 1085 | } |
| 1086 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1087 | static int |
| 1088 | socket_getoption(int fd, int domain, int option, int defaut) |
| 1089 | { |
| 1090 | int ret; |
| 1091 | while (1) { |
| 1092 | #ifdef _WIN32 |
| 1093 | DWORD opt = (DWORD)-1; |
| 1094 | #else |
| 1095 | int opt = -1; |
| 1096 | #endif |
David 'Digit' Turner | 4e024bb | 2010-09-22 14:19:28 +0200 | [diff] [blame] | 1097 | socklen_t optlen = sizeof(opt); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1098 | ret = getsockopt(fd, domain, option, (char*)&opt, &optlen); |
| 1099 | if (ret == 0) |
| 1100 | return (int)opt; |
| 1101 | if (errno != EINTR) |
| 1102 | return defaut; |
| 1103 | } |
David 'Digit' Turner | 4e024bb | 2010-09-22 14:19:28 +0200 | [diff] [blame] | 1104 | #undef OPT_CAST |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1105 | } |
| 1106 | |
| 1107 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1108 | SocketType socket_get_type(int fd) |
| 1109 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1110 | int so_type = socket_getoption(fd, SOL_SOCKET, SO_TYPE, -1); |
| 1111 | return socket_type_from_bsd(so_type); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1112 | } |
| 1113 | |
| 1114 | int socket_set_nonblock(int fd) |
| 1115 | { |
| 1116 | #ifdef _WIN32 |
| 1117 | unsigned long opt = 1; |
| 1118 | return ioctlsocket(fd, FIONBIO, &opt); |
| 1119 | #else |
| 1120 | int flags = fcntl(fd, F_GETFL); |
| 1121 | return fcntl(fd, F_SETFL, flags | O_NONBLOCK); |
| 1122 | #endif |
| 1123 | } |
| 1124 | |
| 1125 | int socket_set_blocking(int fd) |
| 1126 | { |
| 1127 | #ifdef _WIN32 |
| 1128 | unsigned long opt = 0; |
| 1129 | return ioctlsocket(fd, FIONBIO, &opt); |
| 1130 | #else |
| 1131 | int flags = fcntl(fd, F_GETFL); |
| 1132 | return fcntl(fd, F_SETFL, flags & ~O_NONBLOCK); |
| 1133 | #endif |
| 1134 | } |
| 1135 | |
| 1136 | static int |
| 1137 | socket_setoption(int fd, int domain, int option, int _flag) |
| 1138 | { |
| 1139 | #ifdef _WIN32 |
| 1140 | DWORD flag = (DWORD) _flag; |
| 1141 | #else |
| 1142 | int flag = _flag; |
| 1143 | #endif |
| 1144 | return setsockopt( fd, domain, option, (const char*)&flag, sizeof(flag) ); |
| 1145 | } |
| 1146 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1147 | int socket_set_xreuseaddr(int fd) |
| 1148 | { |
| 1149 | #ifdef _WIN32 |
| 1150 | /* on Windows, SO_REUSEADDR is used to indicate that several programs can |
| 1151 | * bind to the same port. this is completely different from the Unix |
| 1152 | * semantics. instead of SO_EXCLUSIVEADDR to ensure that explicitely prevent |
| 1153 | * this. |
| 1154 | */ |
| 1155 | return socket_setoption(fd, SOL_SOCKET, SO_EXCLUSIVEADDRUSE, 1); |
| 1156 | #else |
| 1157 | return socket_setoption(fd, SOL_SOCKET, SO_REUSEADDR, 1); |
| 1158 | #endif |
| 1159 | } |
| 1160 | |
| 1161 | |
| 1162 | int socket_set_oobinline(int fd) |
| 1163 | { |
| 1164 | return socket_setoption(fd, SOL_SOCKET, SO_OOBINLINE, 1); |
| 1165 | } |
| 1166 | |
| 1167 | |
| 1168 | int socket_set_nodelay(int fd) |
| 1169 | { |
| 1170 | return socket_setoption(fd, IPPROTO_TCP, TCP_NODELAY, 1); |
| 1171 | } |
| 1172 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1173 | int socket_set_ipv6only(int fd) |
| 1174 | { |
| 1175 | /* IPV6_ONLY is only supported since Vista on Windows, |
| 1176 | * and the Mingw headers lack its definition anyway. |
| 1177 | */ |
| 1178 | #if defined(_WIN32) && !defined(IPV6_V6ONLY) |
| 1179 | return 0; |
| 1180 | #else |
| 1181 | return socket_setoption(fd, IPPROTO_IPV6, IPV6_V6ONLY, 1); |
David 'Digit' Turner | 4e024bb | 2010-09-22 14:19:28 +0200 | [diff] [blame] | 1182 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1183 | } |
| 1184 | |
| 1185 | |
| 1186 | int socket_get_error(int fd) |
| 1187 | { |
| 1188 | return socket_getoption(fd, SOL_SOCKET, SO_ERROR, -1); |
| 1189 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1190 | |
| 1191 | #ifdef _WIN32 |
| 1192 | #include <stdlib.h> |
| 1193 | |
| 1194 | static void socket_cleanup(void) |
| 1195 | { |
| 1196 | WSACleanup(); |
| 1197 | } |
| 1198 | |
| 1199 | int socket_init(void) |
| 1200 | { |
| 1201 | WSADATA Data; |
| 1202 | int ret, err; |
| 1203 | |
| 1204 | ret = WSAStartup(MAKEWORD(2,2), &Data); |
| 1205 | if (ret != 0) { |
| 1206 | err = WSAGetLastError(); |
| 1207 | return -1; |
| 1208 | } |
| 1209 | atexit(socket_cleanup); |
| 1210 | return 0; |
| 1211 | } |
| 1212 | |
| 1213 | #else /* !_WIN32 */ |
| 1214 | |
| 1215 | int socket_init(void) |
| 1216 | { |
| 1217 | return 0; /* nothing to do on Unix */ |
| 1218 | } |
| 1219 | |
| 1220 | #endif /* !_WIN32 */ |
| 1221 | |
| 1222 | #ifdef _WIN32 |
| 1223 | |
| 1224 | static void |
| 1225 | socket_close_handler( void* _fd ) |
| 1226 | { |
| 1227 | int fd = (int)_fd; |
| 1228 | int ret; |
| 1229 | char buff[64]; |
| 1230 | |
| 1231 | /* we want to drain the read side of the socket before closing it */ |
| 1232 | do { |
| 1233 | ret = recv( fd, buff, sizeof(buff), 0 ); |
| 1234 | } while (ret < 0 && WSAGetLastError() == WSAEINTR); |
| 1235 | |
| 1236 | if (ret < 0 && WSAGetLastError() == EWOULDBLOCK) |
| 1237 | return; |
| 1238 | |
| 1239 | qemu_set_fd_handler( fd, NULL, NULL, NULL ); |
| 1240 | closesocket( fd ); |
| 1241 | } |
| 1242 | |
| 1243 | void |
| 1244 | socket_close( int fd ) |
| 1245 | { |
| 1246 | int old_errno = errno; |
| 1247 | |
| 1248 | shutdown( fd, SD_BOTH ); |
| 1249 | /* we want to drain the socket before closing it */ |
| 1250 | qemu_set_fd_handler( fd, socket_close_handler, NULL, (void*)fd ); |
| 1251 | |
| 1252 | errno = old_errno; |
| 1253 | } |
| 1254 | |
| 1255 | #else /* !_WIN32 */ |
| 1256 | |
| 1257 | #include <unistd.h> |
| 1258 | |
| 1259 | void |
| 1260 | socket_close( int fd ) |
| 1261 | { |
| 1262 | int old_errno = errno; |
| 1263 | |
| 1264 | shutdown( fd, SHUT_RDWR ); |
| 1265 | close( fd ); |
| 1266 | |
| 1267 | errno = old_errno; |
| 1268 | } |
| 1269 | |
| 1270 | #endif /* !_WIN32 */ |
| 1271 | |
| 1272 | |
| 1273 | static int |
| 1274 | socket_bind_server( int s, const SockAddress* to, SocketType type ) |
| 1275 | { |
| 1276 | socket_set_xreuseaddr(s); |
| 1277 | |
| 1278 | if (socket_bind(s, to) < 0) { |
David 'Digit' Turner | 3e7a928 | 2009-05-14 11:25:52 +0200 | [diff] [blame] | 1279 | D("could not bind server socket address %s: %s", |
| 1280 | sock_address_to_string(to), errno_str); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1281 | goto FAIL; |
| 1282 | } |
| 1283 | |
| 1284 | if (type == SOCKET_STREAM) { |
| 1285 | if (socket_listen(s, 4) < 0) { |
David 'Digit' Turner | 3e7a928 | 2009-05-14 11:25:52 +0200 | [diff] [blame] | 1286 | D("could not listen server socket %s: %s", |
| 1287 | sock_address_to_string(to), errno_str); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1288 | goto FAIL; |
| 1289 | } |
| 1290 | } |
| 1291 | return s; |
| 1292 | |
| 1293 | FAIL: |
| 1294 | socket_close(s); |
| 1295 | return -1; |
| 1296 | } |
| 1297 | |
| 1298 | |
| 1299 | static int |
| 1300 | socket_connect_client( int s, const SockAddress* to ) |
| 1301 | { |
| 1302 | if (socket_connect(s, to) < 0) { |
David 'Digit' Turner | 3e7a928 | 2009-05-14 11:25:52 +0200 | [diff] [blame] | 1303 | D( "could not connect client socket to %s: %s\n", |
| 1304 | sock_address_to_string(to), errno_str ); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1305 | socket_close(s); |
| 1306 | return -1; |
| 1307 | } |
| 1308 | |
| 1309 | socket_set_nonblock( s ); |
| 1310 | return s; |
| 1311 | } |
| 1312 | |
| 1313 | |
| 1314 | static int |
| 1315 | socket_in_server( int address, int port, SocketType type ) |
| 1316 | { |
| 1317 | SockAddress addr; |
| 1318 | int s; |
| 1319 | |
| 1320 | sock_address_init_inet( &addr, address, port ); |
| 1321 | s = socket_create_inet( type ); |
| 1322 | if (s < 0) |
| 1323 | return -1; |
| 1324 | |
| 1325 | return socket_bind_server( s, &addr, type ); |
| 1326 | } |
| 1327 | |
| 1328 | |
| 1329 | static int |
| 1330 | socket_in_client( SockAddress* to, SocketType type ) |
| 1331 | { |
| 1332 | int s; |
| 1333 | |
| 1334 | s = socket_create_inet( type ); |
| 1335 | if (s < 0) return -1; |
| 1336 | |
| 1337 | return socket_connect_client( s, to ); |
| 1338 | } |
| 1339 | |
| 1340 | |
| 1341 | int |
| 1342 | socket_loopback_server( int port, SocketType type ) |
| 1343 | { |
| 1344 | return socket_in_server( SOCK_ADDRESS_INET_LOOPBACK, port, type ); |
| 1345 | } |
| 1346 | |
| 1347 | int |
| 1348 | socket_loopback_client( int port, SocketType type ) |
| 1349 | { |
| 1350 | SockAddress addr; |
| 1351 | |
| 1352 | sock_address_init_inet( &addr, SOCK_ADDRESS_INET_LOOPBACK, port ); |
| 1353 | return socket_in_client( &addr, type ); |
| 1354 | } |
| 1355 | |
| 1356 | |
| 1357 | int |
| 1358 | socket_network_client( const char* host, int port, SocketType type ) |
| 1359 | { |
| 1360 | SockAddress addr; |
| 1361 | |
| 1362 | if (sock_address_init_resolve( &addr, host, port, 0) < 0) |
| 1363 | return -1; |
| 1364 | |
| 1365 | return socket_in_client( &addr, type ); |
| 1366 | } |
| 1367 | |
| 1368 | |
| 1369 | int |
| 1370 | socket_anyaddr_server( int port, SocketType type ) |
| 1371 | { |
| 1372 | return socket_in_server( SOCK_ADDRESS_INET_ANY, port, type ); |
| 1373 | } |
| 1374 | |
| 1375 | int |
| 1376 | socket_accept_any( int server_fd ) |
| 1377 | { |
| 1378 | int fd; |
| 1379 | |
| 1380 | QSOCKET_CALL(fd, accept( server_fd, NULL, 0 )); |
| 1381 | if (fd < 0) { |
David 'Digit' Turner | 3e7a928 | 2009-05-14 11:25:52 +0200 | [diff] [blame] | 1382 | D( "could not accept client connection from fd %d: %s", |
| 1383 | server_fd, errno_str ); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1384 | return -1; |
| 1385 | } |
| 1386 | |
| 1387 | /* set to non-blocking */ |
| 1388 | socket_set_nonblock( fd ); |
| 1389 | return fd; |
| 1390 | } |
| 1391 | |
| 1392 | |
| 1393 | #if HAVE_UNIX_SOCKETS |
| 1394 | |
| 1395 | int |
| 1396 | socket_unix_server( const char* name, SocketType type ) |
| 1397 | { |
| 1398 | SockAddress addr; |
| 1399 | int s, ret; |
| 1400 | |
| 1401 | s = socket_create_unix( type ); |
| 1402 | if (s < 0) |
| 1403 | return -1; |
| 1404 | |
| 1405 | sock_address_init_unix( &addr, name ); |
| 1406 | |
| 1407 | do { |
| 1408 | ret = unlink( name ); |
| 1409 | } while (ret < 0 && errno == EINTR); |
| 1410 | |
| 1411 | ret = socket_bind_server( s, &addr, type ); |
| 1412 | |
| 1413 | sock_address_done( &addr ); |
| 1414 | return ret; |
| 1415 | } |
| 1416 | |
| 1417 | int |
| 1418 | socket_unix_client( const char* name, SocketType type ) |
| 1419 | { |
| 1420 | SockAddress addr; |
| 1421 | int s, ret; |
| 1422 | |
| 1423 | s = socket_create_unix(type); |
| 1424 | if (s < 0) |
| 1425 | return -1; |
| 1426 | |
| 1427 | sock_address_init_unix( &addr, name ); |
| 1428 | |
| 1429 | ret = socket_connect_client( s, &addr ); |
| 1430 | |
| 1431 | sock_address_done( &addr ); |
| 1432 | return ret; |
| 1433 | } |
| 1434 | |
| 1435 | #endif /* HAVE_UNIX_SOCKETS */ |
| 1436 | |
| 1437 | |
| 1438 | |
| 1439 | int |
| 1440 | socket_pair(int *fd1, int *fd2) |
| 1441 | { |
| 1442 | #ifndef _WIN32 |
| 1443 | int fds[2]; |
| 1444 | int ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fds); |
| 1445 | |
| 1446 | if (!ret) { |
| 1447 | socket_set_nonblock(fds[0]); |
| 1448 | socket_set_nonblock(fds[1]); |
| 1449 | *fd1 = fds[0]; |
| 1450 | *fd2 = fds[1]; |
| 1451 | } |
| 1452 | return ret; |
| 1453 | #else /* _WIN32 */ |
| 1454 | /* on Windows, select() only works with network sockets, which |
| 1455 | * means we absolutely cannot use Win32 PIPEs to implement |
| 1456 | * socket pairs with the current event loop implementation. |
| 1457 | * We're going to do like Cygwin: create a random pair |
| 1458 | * of localhost TCP sockets and connect them together |
| 1459 | */ |
| 1460 | int s0, s1, s2, port; |
| 1461 | struct sockaddr_in sockin; |
| 1462 | socklen_t len; |
| 1463 | |
| 1464 | /* first, create the 'server' socket. |
| 1465 | * a port number of 0 means 'any port between 1024 and 5000. |
| 1466 | * see Winsock bind() documentation for details */ |
| 1467 | s0 = socket_loopback_server( 0, SOCK_STREAM ); |
| 1468 | if (s0 < 0) |
| 1469 | return -1; |
| 1470 | |
| 1471 | /* now connect a client socket to it, we first need to |
| 1472 | * extract the server socket's port number */ |
| 1473 | len = sizeof sockin; |
| 1474 | if (getsockname(s0, (struct sockaddr*) &sockin, &len) < 0) { |
| 1475 | closesocket (s0); |
| 1476 | return -1; |
| 1477 | } |
| 1478 | |
| 1479 | port = ntohs(sockin.sin_port); |
| 1480 | s2 = socket_loopback_client( port, SOCK_STREAM ); |
| 1481 | if (s2 < 0) { |
| 1482 | closesocket(s0); |
| 1483 | return -1; |
| 1484 | } |
| 1485 | |
| 1486 | /* we need to accept the connection on the server socket |
| 1487 | * this will create the second socket for the pair |
| 1488 | */ |
| 1489 | len = sizeof sockin; |
| 1490 | s1 = accept(s0, (struct sockaddr*) &sockin, &len); |
| 1491 | if (s1 == INVALID_SOCKET) { |
| 1492 | closesocket (s0); |
| 1493 | closesocket (s2); |
| 1494 | return -1; |
| 1495 | } |
| 1496 | socket_set_nonblock(s1); |
| 1497 | |
| 1498 | /* close server socket */ |
| 1499 | closesocket(s0); |
| 1500 | *fd1 = s1; |
| 1501 | *fd2 = s2; |
| 1502 | return 0; |
| 1503 | #endif /* _WIN32 */ |
| 1504 | } |
| 1505 | |
| 1506 | |
| 1507 | |
| 1508 | int |
| 1509 | socket_mcast_inet_add_membership( int s, uint32_t ip ) |
| 1510 | { |
| 1511 | struct ip_mreq imr; |
| 1512 | |
| 1513 | imr.imr_multiaddr.s_addr = htonl(ip); |
| 1514 | imr.imr_interface.s_addr = htonl(INADDR_ANY); |
| 1515 | |
| 1516 | if ( setsockopt( s, IPPROTO_IP, IP_ADD_MEMBERSHIP, |
David 'Digit' Turner | 4e024bb | 2010-09-22 14:19:28 +0200 | [diff] [blame] | 1517 | (const char *)&imr, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1518 | sizeof(struct ip_mreq)) < 0 ) |
| 1519 | { |
| 1520 | return _fix_errno(); |
| 1521 | } |
| 1522 | return 0; |
| 1523 | } |
| 1524 | |
| 1525 | int |
| 1526 | socket_mcast_inet_drop_membership( int s, uint32_t ip ) |
| 1527 | { |
| 1528 | struct ip_mreq imr; |
| 1529 | |
| 1530 | imr.imr_multiaddr.s_addr = htonl(ip); |
| 1531 | imr.imr_interface.s_addr = htonl(INADDR_ANY); |
| 1532 | |
| 1533 | if ( setsockopt( s, IPPROTO_IP, IP_DROP_MEMBERSHIP, |
David 'Digit' Turner | 4e024bb | 2010-09-22 14:19:28 +0200 | [diff] [blame] | 1534 | (const char *)&imr, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1535 | sizeof(struct ip_mreq)) < 0 ) |
| 1536 | { |
| 1537 | return _fix_errno(); |
| 1538 | } |
| 1539 | return 0; |
| 1540 | } |
| 1541 | |
| 1542 | int |
| 1543 | socket_mcast_inet_set_loop( int s, int enabled ) |
| 1544 | { |
| 1545 | return socket_setoption( s, IPPROTO_IP, IP_MULTICAST_LOOP, !!enabled ); |
| 1546 | } |
| 1547 | |
| 1548 | int |
| 1549 | socket_mcast_inet_set_ttl( int s, int ttl ) |
| 1550 | { |
| 1551 | return socket_setoption( s, IPPROTO_IP, IP_MULTICAST_TTL, ttl ); |
| 1552 | } |
| 1553 | |
| 1554 | |
| 1555 | char* |
| 1556 | host_name( void ) |
| 1557 | { |
| 1558 | static char buf[256]; /* 255 is the max host name length supported by DNS */ |
| 1559 | int ret; |
| 1560 | |
| 1561 | QSOCKET_CALL(ret, gethostname(buf, sizeof(buf))); |
| 1562 | |
| 1563 | if (ret < 0) |
| 1564 | return "localhost"; |
| 1565 | else |
| 1566 | return buf; |
| 1567 | } |