moonbridge

annotate moonbridge_io.c @ 245:29322b2a1af8

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Require "mode" parameter passed to tlsconf function
author jbe
date Mon Aug 22 00:40:30 2016 +0200 (2016-08-22)
parents 832741713761
children 00e1ee683355
rev   line source
jbe@209 1
jbe@209 2 #ifndef __has_include
jbe@209 3 #define __has_include(x) 0
jbe@209 4 #endif
jbe@79 5
jbe@79 6 #include <stdlib.h>
jbe@135 7 #include <stdint.h>
jbe@135 8 #include <string.h>
jbe@135 9 #include <errno.h>
jbe@79 10 #include <unistd.h>
jbe@135 11 #include <signal.h>
jbe@135 12 #include <fcntl.h>
jbe@135 13 #include <sys/stat.h>
jbe@79 14 #include <sys/socket.h>
jbe@111 15 #include <sys/un.h>
jbe@95 16 #include <netinet/in.h>
jbe@95 17 #include <netinet/tcp.h>
jbe@135 18 #include <sys/select.h>
jbe@136 19 #include <time.h>
jbe@135 20 #include <netdb.h>
jbe@107 21 #include <arpa/inet.h>
jbe@205 22 #include <sys/types.h>
jbe@205 23 #include <sys/wait.h>
jbe@209 24 #if defined(__linux__) || __has_include(<bsd/unistd.h>)
jbe@209 25 #include <bsd/unistd.h>
jbe@209 26 #endif
jbe@211 27
jbe@243 28 #ifdef MOONBR_IO_USE_TLS
jbe@243 29 #include <tls.h>
jbe@243 30 #endif
jbe@243 31
jbe@79 32 #include <lua.h>
jbe@79 33 #include <lauxlib.h>
jbe@79 34 #include <lualib.h>
jbe@79 35
jbe@149 36 #include <assert.h>
jbe@149 37
jbe@80 38 #define MOONBR_IO_MAXSTRERRORLEN 80
jbe@85 39 #define MOONBR_IO_READBUFLEN 4096
jbe@80 40 #define MOONBR_IO_WRITEBUFLEN 4096
jbe@80 41
jbe@108 42 #define MOONBR_IO_LISTEN_BACKLOG 1024
jbe@108 43
jbe@213 44 #define MOONBR_IO_STRERROR_R_MSG "Error detail unavailable due to noncompliant strerror_r() implementation"
jbe@80 45 #define moonbr_io_errmsg() \
jbe@213 46 char errmsg[MOONBR_IO_MAXSTRERRORLEN] = MOONBR_IO_STRERROR_R_MSG; \
jbe@80 47 strerror_r(errno, errmsg, MOONBR_IO_MAXSTRERRORLEN)
jbe@80 48
jbe@79 49 #define MOONBR_IO_HANDLE_MT_REGKEY "moonbridge_io_handle"
jbe@79 50 #define MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY "moonbridge_io_handle_public"
jbe@108 51 #define MOONBR_IO_LISTENER_MT_REGKEY "moonbridge_io_listener"
jbe@205 52 #define MOONBR_IO_CHILD_MT_REGKEY "moonbridge_io_child"
jbe@205 53 #define MOONBR_IO_CHILD_PT_REGKEY "moonbridge_io_child_pt"
jbe@79 54
jbe@243 55 #ifdef MOONBR_IO_USE_TLS
jbe@243 56 #define MOONBR_IO_TLSCONF_MT_REGKEY "moonbridge_io_tlsconf"
jbe@243 57 #endif
jbe@243 58
jbe@79 59 typedef struct {
jbe@79 60 int fd;
jbe@107 61 int issock;
jbe@107 62 sa_family_t addrfam;
jbe@94 63 int finished;
jbe@94 64 int closed;
jbe@81 65 int nonblocking;
jbe@95 66 int nopush;
jbe@85 67 int readerr;
jbe@105 68 int readbufin;
jbe@105 69 int readbufout;
jbe@81 70 int writeerr;
jbe@83 71 size_t writeleft;
jbe@132 72 size_t flushedleft;
jbe@83 73 #if LUA_VERSION_NUM >= 503
jbe@83 74 lua_Integer writeqin;
jbe@83 75 lua_Integer writeqout;
jbe@83 76 #else
jbe@83 77 int writeqin;
jbe@83 78 int writeqout;
jbe@83 79 #endif
jbe@83 80 size_t writeqoff;
jbe@103 81 int writebufin;
jbe@103 82 int writebufout;
jbe@85 83 char readbuf[MOONBR_IO_READBUFLEN];
jbe@80 84 char writebuf[MOONBR_IO_WRITEBUFLEN];
jbe@79 85 } moonbr_io_handle_t;
jbe@79 86
jbe@108 87 typedef struct {
jbe@108 88 int fd;
jbe@118 89 sa_family_t addrfam;
jbe@108 90 int nonblocking;
jbe@108 91 } moonbr_io_listener_t;
jbe@108 92
jbe@205 93 typedef struct {
jbe@205 94 pid_t pid;
jbe@205 95 } moonbr_io_child_t;
jbe@205 96
jbe@148 97 static int moonbr_io_yield(lua_State *L) {
jbe@149 98 return lua_yield(L, lua_gettop(L));
jbe@140 99 }
jbe@140 100
jbe@140 101 #if LUA_VERSION_NUM >= 503
jbe@140 102 static int moonbr_io_cont_returnall(lua_State *L, int status, lua_KContext ctx) {
jbe@140 103 #else
jbe@140 104 static int moonbr_io_cont_returnall(lua_State *L) {
jbe@140 105 #endif
jbe@140 106 return lua_gettop(L);
jbe@140 107 }
jbe@140 108
jbe@145 109 #define moonbr_io_yield_wrapper(yieldfunc, callfunc) \
jbe@145 110 static int yieldfunc(lua_State *L) { \
jbe@145 111 int args; \
jbe@145 112 lua_pushcfunction(L, callfunc); \
jbe@145 113 lua_insert(L, 1); \
jbe@145 114 args = lua_gettop(L); \
jbe@148 115 lua_pushcfunction(L, moonbr_io_yield); \
jbe@145 116 lua_insert(L, 3); \
jbe@145 117 lua_callk(L, args, LUA_MULTRET, 0, moonbr_io_cont_returnall); \
jbe@145 118 return lua_gettop(L); \
jbe@145 119 }
jbe@145 120
jbe@81 121 static void moonbr_io_handle_set_nonblocking(lua_State *L, moonbr_io_handle_t *handle, int nonblocking) {
jbe@95 122 int flags;
jbe@95 123 if (handle->nonblocking == nonblocking) return;
jbe@95 124 flags = fcntl(handle->fd, F_GETFL, 0);
jbe@95 125 if (flags == -1) {
jbe@95 126 moonbr_io_errmsg();
jbe@96 127 close(handle->fd);
jbe@96 128 handle->fd = -1;
jbe@96 129 handle->closed = 1;
jbe@95 130 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
jbe@81 131 }
jbe@95 132 if (nonblocking) flags |= O_NONBLOCK;
jbe@95 133 else flags &= ~O_NONBLOCK;
jbe@95 134 if (fcntl(handle->fd, F_SETFL, flags) == -1) {
jbe@95 135 moonbr_io_errmsg();
jbe@96 136 close(handle->fd);
jbe@96 137 handle->fd = -1;
jbe@96 138 handle->closed = 1;
jbe@95 139 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
jbe@95 140 }
jbe@95 141 handle->nonblocking = nonblocking;
jbe@81 142 }
jbe@81 143
jbe@87 144 static void moonbr_io_handle_set_linger(lua_State *L, moonbr_io_handle_t *handle, int timeout) {
jbe@87 145 struct linger lingerval = { 0, };
jbe@107 146 if (!handle->issock) return;
jbe@87 147 if (timeout >= 0) {
jbe@87 148 lingerval.l_onoff = 1;
jbe@87 149 lingerval.l_linger = timeout;
jbe@87 150 }
jbe@87 151 if (setsockopt(handle->fd, SOL_SOCKET, SO_LINGER, &lingerval, sizeof(lingerval))) {
jbe@87 152 moonbr_io_errmsg();
jbe@96 153 close(handle->fd);
jbe@96 154 handle->fd = -1;
jbe@96 155 handle->closed = 1;
jbe@95 156 luaL_error(L, "Unexpected error while setting SO_LINGER with setsockopt: %s", errmsg);
jbe@87 157 }
jbe@87 158 }
jbe@87 159
jbe@133 160 static inline void moonbr_io_handle_set_nopush(lua_State *L, moonbr_io_handle_t *handle, int nopush) {
jbe@96 161 #if defined(TCP_NOPUSH) || defined(TCP_CORK)
jbe@107 162 if (
jbe@107 163 !(handle->addrfam == AF_INET6 || handle->addrfam == AF_INET) ||
jbe@107 164 handle->nopush == nopush
jbe@107 165 ) return;
jbe@96 166 #if defined(TCP_NOPUSH)
jbe@96 167 if (setsockopt(handle->fd, IPPROTO_TCP, TCP_NOPUSH, &nopush, sizeof(nopush))) {
jbe@104 168 #elif defined(TCP_CORK)
jbe@104 169 if (setsockopt(handle->fd, IPPROTO_TCP, TCP_CORK, &nopush, sizeof(nopush))) {
jbe@104 170 #endif
jbe@96 171 moonbr_io_errmsg();
jbe@96 172 close(handle->fd);
jbe@96 173 handle->fd = -1;
jbe@96 174 handle->closed = 1;
jbe@104 175 #if defined(TCP_NOPUSH)
jbe@96 176 luaL_error(L, "Unexpected error while setting TCP_NOPUSH with setsockopt: %s", errmsg);
jbe@96 177 #elif defined(TCP_CORK)
jbe@95 178 luaL_error(L, "Unexpected error while setting TCP_CORK with setsockopt: %s", errmsg);
jbe@104 179 #endif
jbe@95 180 }
jbe@95 181 handle->nopush = nopush;
jbe@96 182 #else
jbe@96 183 #warning Neither TCP_NOPUSH nor TCP_CORK is available
jbe@96 184 #endif
jbe@95 185 }
jbe@95 186
jbe@86 187 static int moonbr_io_read_impl(lua_State *L, int nonblocking, int drain) {
jbe@85 188 moonbr_io_handle_t *handle;
jbe@85 189 lua_Integer maxread;
jbe@85 190 const char *terminatorstr;
jbe@210 191 size_t terminatorlen;
jbe@210 192 char terminator = 0; /* initialize to avoid compiler warning */
jbe@85 193 luaL_Buffer luabuf;
jbe@85 194 size_t luabufcnt = 0;
jbe@105 195 int remaining;
jbe@85 196 char *terminatorpos;
jbe@103 197 ssize_t bytesread;
jbe@85 198 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
jbe@153 199 maxread = luaL_optinteger(L, 2, -1);
jbe@85 200 terminatorstr = luaL_optlstring(L, 3, "", &terminatorlen);
jbe@85 201 if (terminatorlen) {
jbe@85 202 luaL_argcheck(L, terminatorlen == 1, 3, "single byte expected");
jbe@85 203 terminator = terminatorstr[0];
jbe@85 204 }
jbe@86 205 lua_settop(L, 1); /* return handle on drain, terminator string may be garbage collected */
jbe@94 206 if (handle->closed) luaL_error(L, "Attempt to read from a closed I/O handle");
jbe@85 207 if (handle->readerr) {
jbe@85 208 lua_pushnil(L);
jbe@85 209 lua_pushliteral(L, "Previous read error");
jbe@85 210 return 2;
jbe@85 211 }
jbe@143 212 if (handle->fd < 0) {
jbe@143 213 /* fake EOF to simulate shutdown */
jbe@143 214 if (!drain) lua_pushliteral(L, "");
jbe@143 215 else lua_pushinteger(L, 0);
jbe@143 216 lua_pushliteral(L, "eof");
jbe@143 217 return 2;
jbe@143 218 }
jbe@105 219 handle->readerr = 1;
jbe@85 220 moonbr_io_handle_set_nonblocking(L, handle, nonblocking);
jbe@86 221 if (!drain) luaL_buffinit(L, &luabuf);
jbe@85 222 while (1) {
jbe@105 223 remaining = -1;
jbe@142 224 terminatorpos = NULL;
jbe@105 225 if (
jbe@153 226 maxread >= 0 &&
jbe@143 227 handle->readbufin - handle->readbufout >= (size_t)maxread - luabufcnt
jbe@105 228 ) {
jbe@142 229 remaining = (size_t)maxread - luabufcnt;
jbe@193 230 if (terminatorlen) {
jbe@193 231 terminatorpos = memchr(
jbe@193 232 handle->readbuf + handle->readbufout,
jbe@193 233 terminator,
jbe@193 234 remaining
jbe@193 235 );
jbe@193 236 }
jbe@85 237 } else if (terminatorlen) {
jbe@105 238 terminatorpos = memchr(
jbe@105 239 handle->readbuf + handle->readbufout,
jbe@105 240 terminator,
jbe@105 241 handle->readbufin - handle->readbufout
jbe@105 242 );
jbe@85 243 }
jbe@142 244 if (terminatorpos) remaining = 1 + (
jbe@142 245 terminatorpos - (handle->readbuf + handle->readbufout)
jbe@142 246 );
jbe@105 247 if (remaining >= 0) {
jbe@86 248 if (!drain) {
jbe@105 249 luaL_addlstring(
jbe@105 250 &luabuf,
jbe@105 251 handle->readbuf + handle->readbufout,
jbe@105 252 remaining
jbe@105 253 );
jbe@86 254 luaL_pushresult(&luabuf);
jbe@90 255 } else {
jbe@105 256 lua_pushinteger(L, luabufcnt + remaining);
jbe@86 257 }
jbe@143 258 if (terminatorpos) lua_pushliteral(L, "term");
jbe@143 259 else lua_pushliteral(L, "maxlen");
jbe@105 260 handle->readbufout += remaining;
jbe@105 261 if (handle->readbufout == handle->readbufin) {
jbe@105 262 handle->readbufin = 0;
jbe@143 263 handle->readbufout = 0;
jbe@105 264 }
jbe@104 265 handle->readerr = 0;
jbe@143 266 return 2;
jbe@85 267 }
jbe@105 268 if (!drain) luaL_addlstring(
jbe@105 269 &luabuf,
jbe@105 270 handle->readbuf + handle->readbufout,
jbe@105 271 handle->readbufin - handle->readbufout
jbe@105 272 );
jbe@105 273 luabufcnt += handle->readbufin - handle->readbufout;
jbe@143 274 handle->readbufout = 0;
jbe@85 275 do {
jbe@103 276 bytesread = read(handle->fd, handle->readbuf, MOONBR_IO_READBUFLEN);
jbe@103 277 } while (bytesread < 0 && (errno == EINTR));
jbe@105 278 if (
jbe@105 279 bytesread == 0 || (
jbe@105 280 nonblocking &&
jbe@105 281 bytesread < 0 && (errno == EAGAIN || errno == EWOULDBLOCK)
jbe@105 282 )
jbe@105 283 ) {
jbe@105 284 handle->readbufin = 0;
jbe@143 285 if (!drain) luaL_pushresult(&luabuf);
jbe@143 286 else lua_pushinteger(L, luabufcnt);
jbe@143 287 if (bytesread == 0) lua_pushliteral(L, "eof");
jbe@143 288 else lua_pushliteral(L, "block");
jbe@105 289 handle->readerr = 0;
jbe@143 290 return 2;
jbe@105 291 }
jbe@103 292 if (bytesread < 0) {
jbe@85 293 moonbr_io_errmsg();
jbe@85 294 lua_pushnil(L);
jbe@85 295 lua_pushstring(L, errmsg);
jbe@85 296 return 2;
jbe@85 297 }
jbe@105 298 handle->readbufin = bytesread;
jbe@86 299 }
jbe@85 300 }
jbe@85 301
jbe@85 302 static int moonbr_io_read(lua_State *L) {
jbe@86 303 return moonbr_io_read_impl(L, 0, 0);
jbe@85 304 }
jbe@85 305
jbe@85 306 static int moonbr_io_read_nb(lua_State *L) {
jbe@86 307 return moonbr_io_read_impl(L, 1, 0);
jbe@86 308 }
jbe@86 309
jbe@86 310 static int moonbr_io_drain(lua_State *L) {
jbe@86 311 return moonbr_io_read_impl(L, 0, 1);
jbe@86 312 }
jbe@86 313
jbe@86 314 static int moonbr_io_drain_nb(lua_State *L) {
jbe@86 315 return moonbr_io_read_impl(L, 1, 1);
jbe@85 316 }
jbe@85 317
jbe@140 318 #if LUA_VERSION_NUM >= 503
jbe@140 319 static int moonbr_io_read_cont(lua_State *L, int status, lua_KContext ctx) {
jbe@140 320 #else
jbe@140 321 static int moonbr_io_read_cont(lua_State *L) {
jbe@140 322 #endif
jbe@143 323 lua_Integer remaining;
jbe@143 324 size_t len;
jbe@140 325 #if !(LUA_VERSION_NUM >= 503)
jbe@140 326 int ctx = 0;
jbe@140 327 lua_getctx(L, &ctx);
jbe@140 328 #endif
jbe@140 329 remaining = lua_tointeger(L, 3);
jbe@140 330 while (1) {
jbe@140 331 lua_pushcfunction(L, moonbr_io_read_nb);
jbe@140 332 lua_pushvalue(L, 1);
jbe@140 333 lua_pushvalue(L, 3);
jbe@140 334 lua_pushvalue(L, 4);
jbe@140 335 lua_call(L, 3, 2);
jbe@143 336 if (lua_isnil(L, -2)) return 2;
jbe@143 337 lua_insert(L, -2);
jbe@143 338 len = lua_rawlen(L, -1);
jbe@143 339 if (ctx == 0) {
jbe@143 340 lua_replace(L, 5);
jbe@143 341 ctx = 1;
jbe@143 342 } else if (ctx == 1) {
jbe@143 343 lua_pushvalue(L, 5);
jbe@143 344 lua_newtable(L);
jbe@143 345 lua_replace(L, 5);
jbe@143 346 lua_rawseti(L, 5, 2);
jbe@143 347 lua_rawseti(L, 5, 1);
jbe@143 348 ctx = 2;
jbe@140 349 } else {
jbe@143 350 lua_rawseti(L, 5, lua_rawlen(L, 5) + 1);
jbe@140 351 }
jbe@144 352 if (strcmp(lua_tostring(L, -1), "block") != 0) break;
jbe@144 353 lua_pop(L, 1);
jbe@144 354 if (remaining >= 0 && len) {
jbe@143 355 remaining -= len;
jbe@143 356 lua_pushinteger(L, remaining);
jbe@143 357 lua_replace(L, 3);
jbe@143 358 }
jbe@140 359 lua_pushvalue(L, 2);
jbe@152 360 lua_callk(L, 0, 0, ctx, moonbr_io_read_cont);
jbe@140 361 }
jbe@140 362 if (ctx == 1) {
jbe@140 363 lua_pushvalue(L, 5);
jbe@140 364 } else {
jbe@140 365 luaL_Buffer buf;
jbe@140 366 lua_Integer i, chunkcount;
jbe@140 367 chunkcount = lua_rawlen(L, 5);
jbe@140 368 luaL_buffinit(L, &buf);
jbe@140 369 for (i=1; i<=chunkcount && i>0; i++) {
jbe@140 370 lua_rawgeti(L, 5, i);
jbe@140 371 luaL_addvalue(&buf);
jbe@140 372 }
jbe@140 373 luaL_pushresult(&buf);
jbe@140 374 }
jbe@143 375 lua_pushvalue(L, -2);
jbe@143 376 return 2;
jbe@140 377 }
jbe@140 378
jbe@140 379 static int moonbr_io_read_call(lua_State *L) {
jbe@140 380 lua_settop(L, 4);
jbe@140 381 lua_pushnil(L);
jbe@140 382 #if LUA_VERSION_NUM >= 503
jbe@140 383 return moonbr_io_read_cont(L, 0, 0);
jbe@140 384 #else
jbe@140 385 return moonbr_io_read_cont(L);
jbe@140 386 #endif
jbe@140 387 }
jbe@140 388
jbe@145 389 moonbr_io_yield_wrapper(moonbr_io_read_yield, moonbr_io_read_call);
jbe@140 390
jbe@144 391 #if LUA_VERSION_NUM >= 503
jbe@144 392 static int moonbr_io_drain_cont(lua_State *L, int status, lua_KContext ctx) {
jbe@144 393 #else
jbe@144 394 static int moonbr_io_drain_cont(lua_State *L) {
jbe@144 395 #endif
jbe@144 396 lua_Integer remaining, len;
jbe@144 397 size_t totallen = 0;
jbe@144 398 #if !(LUA_VERSION_NUM >= 503)
jbe@144 399 int ctx = 0;
jbe@144 400 lua_getctx(L, &ctx);
jbe@144 401 #endif
jbe@144 402 remaining = lua_tointeger(L, 3);
jbe@144 403 while (1) {
jbe@144 404 lua_pushcfunction(L, moonbr_io_drain_nb);
jbe@144 405 lua_pushvalue(L, 1);
jbe@144 406 lua_pushvalue(L, 3);
jbe@144 407 lua_pushvalue(L, 4);
jbe@144 408 lua_call(L, 3, 2);
jbe@144 409 if (lua_isnil(L, -2)) return 2;
jbe@144 410 lua_insert(L, -2);
jbe@144 411 len = lua_tointeger(L, -1);
jbe@144 412 lua_pop(L, 1);
jbe@144 413 totallen += len;
jbe@144 414 if (strcmp(lua_tostring(L, -1), "block") != 0) break;
jbe@144 415 lua_pop(L, 1);
jbe@144 416 if (remaining >= 0 && len) {
jbe@144 417 remaining -= len;
jbe@144 418 lua_pushinteger(L, remaining);
jbe@144 419 lua_replace(L, 3);
jbe@144 420 }
jbe@144 421 lua_pushvalue(L, 2);
jbe@152 422 lua_callk(L, 0, 0, ctx, moonbr_io_drain_cont);
jbe@144 423 }
jbe@144 424 lua_pushinteger(L, totallen);
jbe@144 425 lua_pushvalue(L, -2);
jbe@144 426 return 2;
jbe@144 427 }
jbe@144 428
jbe@144 429 static int moonbr_io_drain_call(lua_State *L) {
jbe@144 430 #if LUA_VERSION_NUM >= 503
jbe@144 431 return moonbr_io_drain_cont(L, 0, 0);
jbe@144 432 #else
jbe@144 433 return moonbr_io_drain_cont(L);
jbe@144 434 #endif
jbe@144 435 }
jbe@144 436
jbe@145 437 moonbr_io_yield_wrapper(moonbr_io_drain_yield, moonbr_io_drain_call);
jbe@144 438
jbe@81 439 static int moonbr_io_write_impl(lua_State *L, int nonblocking, int flush) {
jbe@80 440 moonbr_io_handle_t *handle;
jbe@80 441 int i, top;
jbe@80 442 const char *str;
jbe@92 443 size_t strlen;
jbe@103 444 ssize_t written;
jbe@80 445 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
jbe@94 446 if (handle->closed) luaL_error(L, "Attempt to write to a closed I/O handle");
jbe@94 447 if (handle->finished) luaL_error(L, "Attempt to write to a finished I/O handle");
jbe@81 448 if (handle->writeerr) {
jbe@80 449 lua_pushnil(L);
jbe@80 450 lua_pushliteral(L, "Previous write error");
jbe@80 451 return 2;
jbe@80 452 }
jbe@103 453 handle->writeerr = 1;
jbe@81 454 moonbr_io_handle_set_nonblocking(L, handle, nonblocking);
jbe@84 455 top = lua_gettop(L);
jbe@81 456 lua_getuservalue(L, 1);
jbe@103 457 lua_getfield(L, -1, "writequeue");
jbe@84 458 for (i=2; i<=top; i++) {
jbe@84 459 luaL_checklstring(L, i, &strlen);
jbe@84 460 lua_pushvalue(L, i);
jbe@84 461 lua_rawseti(L, -2, handle->writeqin++);
jbe@84 462 handle->writeleft += strlen;
jbe@81 463 }
jbe@132 464 if (flush) handle->flushedleft = handle->writeleft;
jbe@83 465 while (handle->writeqout != handle->writeqin) {
jbe@83 466 lua_rawgeti(L, -1, handle->writeqout);
jbe@81 467 str = lua_tolstring(L, -1, &strlen);
jbe@92 468 while (handle->writeqoff < strlen) {
jbe@103 469 if (
jbe@132 470 strlen - handle->writeqoff <
jbe@103 471 MOONBR_IO_WRITEBUFLEN - handle->writebufin
jbe@103 472 ) {
jbe@103 473 memcpy(
jbe@103 474 handle->writebuf + handle->writebufin,
jbe@103 475 str + handle->writeqoff,
jbe@103 476 strlen - handle->writeqoff
jbe@103 477 );
jbe@103 478 handle->writebufin += strlen - handle->writeqoff;
jbe@80 479 break;
jbe@80 480 } else {
jbe@103 481 memcpy(
jbe@103 482 handle->writebuf + handle->writebufin,
jbe@103 483 str + handle->writeqoff,
jbe@103 484 MOONBR_IO_WRITEBUFLEN - handle->writebufin
jbe@103 485 );
jbe@103 486 handle->writeqoff += MOONBR_IO_WRITEBUFLEN - handle->writebufin;
jbe@228 487 handle->writebufin = MOONBR_IO_WRITEBUFLEN;
jbe@103 488 while (handle->writebufout < MOONBR_IO_WRITEBUFLEN) {
jbe@133 489 moonbr_io_handle_set_nopush(L, handle, 1);
jbe@103 490 written = write(
jbe@103 491 handle->fd,
jbe@103 492 handle->writebuf + handle->writebufout,
jbe@103 493 MOONBR_IO_WRITEBUFLEN - handle->writebufout
jbe@103 494 );
jbe@103 495 if (written < 0) {
jbe@81 496 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
jbe@81 497 goto moonbr_io_write_impl_block;
jbe@81 498 } else if (errno != EINTR) {
jbe@80 499 moonbr_io_errmsg();
jbe@80 500 lua_pushnil(L);
jbe@80 501 lua_pushstring(L, errmsg);
jbe@80 502 return 2;
jbe@80 503 }
jbe@103 504 } else {
jbe@103 505 handle->writebufout += written;
jbe@103 506 handle->writeleft -= written;
jbe@133 507 if (handle->flushedleft) {
jbe@133 508 if (written >= handle->flushedleft) {
jbe@133 509 handle->flushedleft = 0;
jbe@133 510 moonbr_io_handle_set_nopush(L, handle, 0);
jbe@133 511 } else {
jbe@133 512 handle->flushedleft -= written;
jbe@133 513 }
jbe@133 514 }
jbe@80 515 }
jbe@80 516 }
jbe@103 517 handle->writebufin = 0;
jbe@103 518 handle->writebufout = 0;
jbe@80 519 }
jbe@80 520 }
jbe@81 521 handle->writeqoff = 0;
jbe@81 522 lua_pop(L, 1);
jbe@81 523 lua_pushnil(L);
jbe@83 524 lua_rawseti(L, -2, handle->writeqout++);
jbe@80 525 }
jbe@132 526 while (handle->flushedleft) {
jbe@133 527 moonbr_io_handle_set_nopush(L, handle, 1);
jbe@132 528 written = write(
jbe@132 529 handle->fd,
jbe@132 530 handle->writebuf + handle->writebufout,
jbe@132 531 handle->writebufin - handle->writebufout
jbe@132 532 );
jbe@132 533 if (written < 0) {
jbe@132 534 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
jbe@132 535 goto moonbr_io_write_impl_block;
jbe@132 536 } else if (errno != EINTR) {
jbe@132 537 moonbr_io_errmsg();
jbe@132 538 lua_pushnil(L);
jbe@132 539 lua_pushstring(L, errmsg);
jbe@132 540 return 2;
jbe@81 541 }
jbe@132 542 } else {
jbe@132 543 handle->writebufout += written;
jbe@132 544 handle->writeleft -= written;
jbe@133 545 if (handle->flushedleft) {
jbe@133 546 if (written >= handle->flushedleft) {
jbe@133 547 handle->flushedleft = 0;
jbe@133 548 moonbr_io_handle_set_nopush(L, handle, 0);
jbe@133 549 } else {
jbe@133 550 handle->flushedleft -= written;
jbe@133 551 }
jbe@133 552 }
jbe@81 553 }
jbe@132 554 }
jbe@132 555 if (handle->writebufout == handle->writebufin) {
jbe@103 556 handle->writebufin = 0;
jbe@103 557 handle->writebufout = 0;
jbe@81 558 }
jbe@103 559 if (nonblocking) lua_pushinteger(L, 0);
jbe@103 560 else lua_pushvalue(L, 1);
jbe@103 561 handle->writeerr = 0;
jbe@80 562 return 1;
jbe@81 563 moonbr_io_write_impl_block:
jbe@91 564 lua_pushinteger(L, handle->writeleft);
jbe@103 565 handle->writeerr = 0;
jbe@81 566 return 1;
jbe@81 567 }
jbe@81 568
jbe@81 569 static int moonbr_io_write(lua_State *L) {
jbe@81 570 return moonbr_io_write_impl(L, 0, 0);
jbe@81 571 }
jbe@81 572
jbe@81 573 static int moonbr_io_write_nb(lua_State *L) {
jbe@81 574 return moonbr_io_write_impl(L, 1, 0);
jbe@80 575 }
jbe@80 576
jbe@80 577 static int moonbr_io_flush(lua_State *L) {
jbe@81 578 return moonbr_io_write_impl(L, 0, 1);
jbe@81 579 }
jbe@81 580
jbe@81 581 static int moonbr_io_flush_nb(lua_State *L) {
jbe@81 582 return moonbr_io_write_impl(L, 1, 1);
jbe@80 583 }
jbe@80 584
jbe@145 585 #if LUA_VERSION_NUM >= 503
jbe@145 586 static int moonbr_io_write_cont(lua_State *L, int status, lua_KContext ctx) {
jbe@145 587 #else
jbe@145 588 static int moonbr_io_write_cont(lua_State *L) {
jbe@145 589 #endif
jbe@145 590 while (1) {
jbe@145 591 lua_pushcfunction(L, moonbr_io_write_nb);
jbe@145 592 lua_pushvalue(L, 1);
jbe@145 593 lua_call(L, 1, 2);
jbe@145 594 if (lua_isnil(L, -2)) return 2;
jbe@145 595 if (!lua_tointeger(L, -2)) {
jbe@145 596 lua_pushvalue(L, 1);
jbe@145 597 return 1;
jbe@145 598 }
jbe@145 599 lua_pop(L, 2);
jbe@145 600 lua_pushvalue(L, 2);
jbe@152 601 lua_callk(L, 0, 0, 0, moonbr_io_write_cont);
jbe@145 602 }
jbe@145 603 }
jbe@145 604
jbe@145 605 static int moonbr_io_write_call(lua_State *L) {
jbe@145 606 lua_pushcfunction(L, moonbr_io_write_nb);
jbe@145 607 lua_insert(L, 3);
jbe@145 608 lua_pushvalue(L, 1);
jbe@145 609 lua_insert(L, 4);
jbe@145 610 lua_call(L, lua_gettop(L) - 3, 2);
jbe@145 611 if (lua_isnil(L, -2)) return 2;
jbe@145 612 if (!lua_tointeger(L, -2)) {
jbe@145 613 lua_pushvalue(L, 1);
jbe@145 614 return 1;
jbe@145 615 }
jbe@145 616 #if LUA_VERSION_NUM >= 503
jbe@145 617 return moonbr_io_write_cont(L, 0, 0);
jbe@145 618 #else
jbe@145 619 return moonbr_io_write_cont(L);
jbe@145 620 #endif
jbe@145 621 }
jbe@145 622
jbe@145 623 moonbr_io_yield_wrapper(moonbr_io_write_yield, moonbr_io_write_call);
jbe@145 624
jbe@145 625 static int moonbr_io_flush_call(lua_State *L) {
jbe@145 626 lua_pushcfunction(L, moonbr_io_flush_nb);
jbe@145 627 lua_insert(L, 3);
jbe@145 628 lua_pushvalue(L, 1);
jbe@145 629 lua_insert(L, 4);
jbe@145 630 lua_call(L, lua_gettop(L) - 3, 2);
jbe@145 631 if (lua_isnil(L, -2)) return 2;
jbe@145 632 if (!lua_tointeger(L, -2)) {
jbe@145 633 lua_pushvalue(L, 1);
jbe@145 634 return 1;
jbe@145 635 }
jbe@145 636 #if LUA_VERSION_NUM >= 503
jbe@145 637 return moonbr_io_write_cont(L, 0, 0);
jbe@145 638 #else
jbe@145 639 return moonbr_io_write_cont(L);
jbe@145 640 #endif
jbe@145 641 }
jbe@145 642
jbe@145 643 moonbr_io_yield_wrapper(moonbr_io_flush_yield, moonbr_io_flush_call);
jbe@145 644
jbe@88 645 static int moonbr_io_finish(lua_State *L) {
jbe@88 646 moonbr_io_handle_t *handle;
jbe@88 647 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
jbe@94 648 if (handle->closed) luaL_error(L, "Attempt to finish a closed I/O handle");
jbe@94 649 if (handle->finished) luaL_error(L, "Attempt to finish a finished I/O handle");
jbe@94 650 if (handle->writeleft) {
jbe@94 651 lua_pushcfunction(L, moonbr_io_flush);
jbe@94 652 lua_pushvalue(L, 1);
jbe@116 653 if (lua_pcall(L, 1, 2, 0)) {
jbe@116 654 handle->finished = 1;
jbe@116 655 lua_error(L);
jbe@116 656 }
jbe@94 657 if (!lua_toboolean(L, -2)) {
jbe@94 658 handle->finished = 1;
jbe@94 659 return 2;
jbe@88 660 }
jbe@94 661 }
jbe@94 662 handle->finished = 1;
jbe@107 663 if (handle->addrfam == AF_INET6 || handle->addrfam == AF_INET) {
jbe@88 664 if (shutdown(handle->fd, SHUT_WR)) {
jbe@88 665 moonbr_io_errmsg();
jbe@88 666 lua_pushnil(L);
jbe@88 667 lua_pushstring(L, errmsg);
jbe@88 668 return 2;
jbe@88 669 }
jbe@94 670 } else {
jbe@94 671 if (close(handle->fd)) {
jbe@94 672 moonbr_io_errmsg();
jbe@94 673 handle->fd = -1;
jbe@94 674 lua_pushnil(L);
jbe@94 675 lua_pushstring(L, errmsg);
jbe@94 676 return 2;
jbe@94 677 }
jbe@94 678 handle->fd = -1; /* fake EOF on read */
jbe@88 679 }
jbe@88 680 lua_pushboolean(L, 1);
jbe@88 681 return 1;
jbe@88 682 }
jbe@88 683
jbe@94 684 static int moonbr_io_close_impl(lua_State *L, int reset) {
jbe@83 685 moonbr_io_handle_t *handle;
jbe@83 686 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
jbe@94 687 if (handle->closed) luaL_error(L, "Attempt to close a closed I/O handle");
jbe@94 688 if (!reset) {
jbe@87 689 if (handle->writeleft) {
jbe@87 690 lua_pushcfunction(L, moonbr_io_flush);
jbe@87 691 lua_pushvalue(L, 1);
jbe@116 692 if (lua_pcall(L, 1, 2, 0)) {
jbe@129 693 handle->closed = 1;
jbe@116 694 close(handle->fd);
jbe@116 695 handle->fd = -1;
jbe@116 696 lua_error(L);
jbe@116 697 }
jbe@129 698 handle->closed = 1;
jbe@87 699 if (!lua_toboolean(L, -2)) {
jbe@87 700 close(handle->fd);
jbe@87 701 handle->fd = -1;
jbe@87 702 return 2;
jbe@87 703 }
jbe@129 704 } else {
jbe@129 705 handle->closed = 1;
jbe@129 706 moonbr_io_handle_set_linger(L, handle, -1);
jbe@83 707 }
jbe@129 708 } else {
jbe@129 709 handle->closed = 1;
jbe@83 710 }
jbe@94 711 if (handle->fd >= 0) {
jbe@94 712 if (close(handle->fd)) {
jbe@94 713 moonbr_io_errmsg();
jbe@94 714 handle->fd = -1;
jbe@94 715 lua_pushnil(L);
jbe@94 716 lua_pushstring(L, errmsg);
jbe@94 717 return 2;
jbe@94 718 }
jbe@104 719 handle->fd = -1;
jbe@83 720 }
jbe@83 721 lua_pushboolean(L, 1);
jbe@83 722 return 1;
jbe@84 723
jbe@83 724 }
jbe@83 725
jbe@94 726 static int moonbr_io_close(lua_State *L) {
jbe@94 727 return moonbr_io_close_impl(L, 0);
jbe@94 728 }
jbe@94 729
jbe@84 730 static int moonbr_io_reset(lua_State *L) {
jbe@94 731 return moonbr_io_close_impl(L, 1);
jbe@84 732 }
jbe@84 733
jbe@108 734 static int moonbr_io_handlegc(lua_State *L) {
jbe@88 735 moonbr_io_handle_t *handle;
jbe@88 736 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
jbe@88 737 if (handle->fd >= 0) {
jbe@218 738 lua_pushcfunction(L, moonbr_io_reset);
jbe@88 739 lua_pushvalue(L, 1);
jbe@88 740 lua_pushinteger(L, 0);
jbe@88 741 lua_call(L, 2, 0);
jbe@88 742 }
jbe@88 743 return 0;
jbe@88 744 }
jbe@88 745
jbe@100 746 void moonbr_io_closehandle(lua_State *L, int idx, int reset) {
jbe@88 747 moonbr_io_handle_t *handle;
jbe@88 748 handle = luaL_checkudata(L, idx, MOONBR_IO_HANDLE_MT_REGKEY);
jbe@100 749 if (!handle->closed) {
jbe@100 750 lua_pushcfunction(L, reset ? moonbr_io_reset : moonbr_io_close);
jbe@100 751 lua_pushvalue(L, idx < 0 ? idx-1 : idx);
jbe@100 752 lua_call(L, 1, 0);
jbe@88 753 }
jbe@88 754 }
jbe@88 755
jbe@208 756 static int moonbr_io_pushhandle_impl(lua_State *L) {
jbe@208 757 int *fd;
jbe@79 758 moonbr_io_handle_t *handle;
jbe@107 759 struct sockaddr addr;
jbe@107 760 socklen_t addrlen;
jbe@208 761 fd = lua_touserdata(L, 1);
jbe@79 762 handle = lua_newuserdata(L, sizeof(moonbr_io_handle_t));
jbe@208 763 handle->fd = -1; /* avoid closing incomplete handle */
jbe@107 764 addrlen = sizeof(addr);
jbe@208 765 if (getsockname(*fd, &addr, &addrlen)) {
jbe@107 766 if (errno != ENOTSOCK) {
jbe@107 767 moonbr_io_errmsg();
jbe@107 768 luaL_error(L, "Unexpected error when examining socket: %s", errmsg);
jbe@107 769 }
jbe@107 770 handle->issock = 0;
jbe@107 771 } else {
jbe@107 772 handle->issock = 1;
jbe@107 773 handle->addrfam = addr.sa_family;
jbe@107 774 }
jbe@94 775 handle->finished = 0;
jbe@94 776 handle->closed = 0;
jbe@81 777 handle->nonblocking = -1;
jbe@95 778 handle->nopush = -1;
jbe@85 779 handle->readerr = 0;
jbe@105 780 handle->readbufin = 0;
jbe@105 781 handle->readbufout = 0;
jbe@81 782 handle->writeerr = 0;
jbe@81 783 handle->writeleft = 0;
jbe@132 784 handle->flushedleft = 0;
jbe@83 785 handle->writeqin = 0;
jbe@83 786 handle->writeqout = 0;
jbe@81 787 handle->writeqoff = 0;
jbe@103 788 handle->writebufin = 0;
jbe@103 789 handle->writebufout = 0;
jbe@208 790 handle->fd = *fd; /* required for set_linger call */
jbe@87 791 moonbr_io_handle_set_linger(L, handle, 0);
jbe@208 792 handle->fd = -1; /* avoid closing incomplete handle */
jbe@238 793 luaL_setmetatable(L, MOONBR_IO_HANDLE_MT_REGKEY);
jbe@79 794 lua_newtable(L); // uservalue
jbe@81 795 lua_newtable(L);
jbe@103 796 lua_setfield(L, -2, "writequeue");
jbe@79 797 lua_newtable(L); // public
jbe@107 798 if (handle->addrfam == AF_INET6) {
jbe@107 799 struct sockaddr_in6 addr_in6;
jbe@107 800 char addrstrbuf[INET6_ADDRSTRLEN];
jbe@107 801 const char *addrstr;
jbe@107 802 addrlen = sizeof(addr_in6);
jbe@208 803 if (getsockname(*fd, (struct sockaddr *)&addr_in6, &addrlen)) {
jbe@107 804 moonbr_io_errmsg();
jbe@107 805 luaL_error(L, "Could not determine local IP address/port: %s", errmsg);
jbe@107 806 }
jbe@107 807 if (addrlen > sizeof(addr_in6)) {
jbe@107 808 luaL_error(L, "Could not determine local IP address/port: buffer size exceeded");
jbe@107 809 }
jbe@107 810 addrstr = inet_ntop(AF_INET6, addr_in6.sin6_addr.s6_addr, addrstrbuf, sizeof(addrstrbuf));
jbe@107 811 if (!addrstr) {
jbe@107 812 moonbr_io_errmsg();
jbe@107 813 luaL_error(L, "Could not format local IP address: %s", errmsg);
jbe@107 814 } else {
jbe@107 815 lua_pushstring(L, addrstr);
jbe@107 816 lua_setfield(L, -2, "local_ip6");
jbe@107 817 }
jbe@107 818 lua_pushinteger(L, ntohs(addr_in6.sin6_port));
jbe@107 819 lua_setfield(L, -2, "local_tcpport");
jbe@208 820 if (getpeername(*fd, (struct sockaddr *)&addr_in6, &addrlen)) {
jbe@107 821 moonbr_io_errmsg();
jbe@107 822 luaL_error(L, "Could not determine remote IP address/port: %s", errmsg);
jbe@107 823 }
jbe@107 824 if (addrlen > sizeof(addr_in6)) {
jbe@107 825 luaL_error(L, "Could not determine remote IP address/port: buffer size exceeded");
jbe@107 826 }
jbe@107 827 addrstr = inet_ntop(AF_INET6, addr_in6.sin6_addr.s6_addr, addrstrbuf, sizeof(addrstrbuf));
jbe@107 828 if (!addrstr) {
jbe@107 829 moonbr_io_errmsg();
jbe@107 830 luaL_error(L, "Could not format remote IP address: %s", errmsg);
jbe@107 831 } else {
jbe@107 832 lua_pushstring(L, addrstr);
jbe@107 833 lua_setfield(L, -2, "remote_ip6");
jbe@107 834 }
jbe@107 835 lua_pushinteger(L, ntohs(addr_in6.sin6_port));
jbe@107 836 lua_setfield(L, -2, "remote_tcpport");
jbe@107 837 } else if (handle->addrfam == AF_INET) {
jbe@107 838 struct sockaddr_in addr_in;
jbe@107 839 char addrstrbuf[INET_ADDRSTRLEN];
jbe@107 840 const char *addrstr;
jbe@107 841 addrlen = sizeof(addr_in);
jbe@208 842 if (getsockname(*fd, (struct sockaddr *)&addr_in, &addrlen)) {
jbe@107 843 moonbr_io_errmsg();
jbe@107 844 luaL_error(L, "Could not determine local IP address/port: %s", errmsg);
jbe@107 845 }
jbe@107 846 if (addrlen > sizeof(addr_in)) {
jbe@107 847 luaL_error(L, "Could not determine local IP address/port: buffer size exceeded");
jbe@107 848 }
jbe@107 849 addrstr = inet_ntop(AF_INET, &addr_in.sin_addr.s_addr, addrstrbuf, sizeof(addrstrbuf));
jbe@107 850 if (!addrstr) {
jbe@107 851 moonbr_io_errmsg();
jbe@107 852 luaL_error(L, "Could not format local IP address: %s", errmsg);
jbe@107 853 } else {
jbe@107 854 lua_pushstring(L, addrstr);
jbe@107 855 lua_setfield(L, -2, "local_ip4");
jbe@107 856 }
jbe@107 857 lua_pushinteger(L, ntohs(addr_in.sin_port));
jbe@107 858 lua_setfield(L, -2, "local_tcpport");
jbe@208 859 if (getpeername(*fd, (struct sockaddr *)&addr_in, &addrlen)) {
jbe@107 860 moonbr_io_errmsg();
jbe@107 861 luaL_error(L, "Could not determine remote IP address/port: %s", errmsg);
jbe@107 862 }
jbe@107 863 if (addrlen > sizeof(addr_in)) {
jbe@107 864 luaL_error(L, "Could not determine remote IP address/port: buffer size exceeded");
jbe@107 865 }
jbe@107 866 addrstr = inet_ntop(AF_INET, &addr_in.sin_addr.s_addr, addrstrbuf, sizeof(addrstrbuf));
jbe@107 867 if (!addrstr) {
jbe@107 868 moonbr_io_errmsg();
jbe@107 869 luaL_error(L, "Could not format remote IP address: %s", errmsg);
jbe@107 870 } else {
jbe@107 871 lua_pushstring(L, addrstr);
jbe@107 872 lua_setfield(L, -2, "remote_ip4");
jbe@107 873 }
jbe@107 874 lua_pushinteger(L, ntohs(addr_in.sin_port));
jbe@107 875 lua_setfield(L, -2, "remote_tcpport");
jbe@107 876 }
jbe@238 877 luaL_setmetatable(L, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
jbe@79 878 lua_setfield(L, -2, "public");
jbe@79 879 lua_setuservalue(L, -2);
jbe@208 880 handle->fd = *fd;
jbe@208 881 *fd = -1; /* closing is now handled by garbage collection */
jbe@208 882 return 1;
jbe@208 883 }
jbe@208 884
jbe@208 885 void moonbr_io_pushhandle(lua_State *L, int fd) {
jbe@208 886 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
jbe@208 887 lua_pushlightuserdata(L, &fd);
jbe@208 888 if (lua_pcall(L, 1, 1, 0)) {
jbe@208 889 if (fd != -1) close(fd);
jbe@208 890 lua_error(L);
jbe@208 891 }
jbe@79 892 }
jbe@79 893
jbe@79 894 static int moonbr_io_handleindex(lua_State *L) {
jbe@80 895 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
jbe@205 896 luaL_checkany(L, 2);
jbe@79 897 lua_getuservalue(L, 1);
jbe@79 898 lua_getfield(L, -1, "public");
jbe@79 899 lua_pushvalue(L, 2);
jbe@79 900 lua_gettable(L, -2);
jbe@79 901 return 1;
jbe@79 902 }
jbe@79 903
jbe@79 904 static int moonbr_io_handlenewindex(lua_State *L) {
jbe@80 905 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
jbe@205 906 luaL_checkany(L, 2);
jbe@205 907 luaL_checkany(L, 3);
jbe@79 908 lua_getuservalue(L, 1);
jbe@79 909 lua_getfield(L, -1, "public");
jbe@79 910 lua_pushvalue(L, 2);
jbe@79 911 lua_pushvalue(L, 3);
jbe@79 912 lua_settable(L, -3);
jbe@79 913 return 0;
jbe@79 914 }
jbe@79 915
jbe@111 916 static int moonbr_io_localconnect_impl(lua_State *L, int nonblocking) {
jbe@111 917 const char *path;
jbe@111 918 struct sockaddr_un sockaddr = { .sun_family = AF_LOCAL };
jbe@111 919 const int path_maxlen = sizeof(struct sockaddr_un) - (
jbe@111 920 (void *)sockaddr.sun_path - (void *)&sockaddr
jbe@111 921 ) - 1; /* one byte for termination */
jbe@111 922 int sock;
jbe@111 923 path = luaL_checkstring(L, 1);
jbe@111 924 if (strlen(path) > path_maxlen) luaL_error(L, "Path too long; only %i characters allowed", path_maxlen);
jbe@111 925 strcpy(sockaddr.sun_path, path);
jbe@111 926 sock = socket(
jbe@111 927 PF_LOCAL,
jbe@111 928 SOCK_STREAM | SOCK_CLOEXEC | (nonblocking ? SOCK_NONBLOCK : 0),
jbe@111 929 0
jbe@111 930 );
jbe@111 931 if (sock < 0) {
jbe@111 932 moonbr_io_errmsg();
jbe@111 933 lua_pushnil(L);
jbe@111 934 lua_pushstring(L, errmsg);
jbe@111 935 return 2;
jbe@111 936 }
jbe@111 937 if (connect(sock, (struct sockaddr *)&sockaddr, sizeof(sockaddr))) {
jbe@111 938 if (!nonblocking && errno == EINTR) {
jbe@111 939 moonbr_io_errmsg();
jbe@111 940 close(sock);
jbe@111 941 lua_pushnil(L);
jbe@111 942 lua_pushstring(L, errmsg);
jbe@111 943 return 2;
jbe@111 944 } else if (!(nonblocking && (errno == EINPROGRESS || errno == EINTR))) {
jbe@111 945 moonbr_io_errmsg();
jbe@111 946 lua_pushnil(L);
jbe@111 947 lua_pushstring(L, errmsg);
jbe@111 948 return 2;
jbe@111 949 }
jbe@111 950 }
jbe@111 951 moonbr_io_pushhandle(L, sock);
jbe@111 952 return 1;
jbe@111 953 }
jbe@111 954
jbe@111 955 static int moonbr_io_localconnect(lua_State *L) {
jbe@111 956 return moonbr_io_localconnect_impl(L, 0);
jbe@111 957 }
jbe@111 958
jbe@111 959 static int moonbr_io_localconnect_nb(lua_State *L) {
jbe@111 960 return moonbr_io_localconnect_impl(L, 1);
jbe@111 961 }
jbe@111 962
jbe@99 963 static int moonbr_io_tcpconnect_impl(lua_State *L, int nonblocking) {
jbe@98 964 const char *host, *port;
jbe@98 965 struct addrinfo hints = { 0, };
jbe@98 966 struct addrinfo *res, *addrinfo;
jbe@98 967 int errcode;
jbe@98 968 int sock;
jbe@98 969 host = luaL_checkstring(L, 1);
jbe@98 970 port = luaL_checkstring(L, 2);
jbe@98 971 hints.ai_family = AF_UNSPEC;
jbe@98 972 hints.ai_socktype = SOCK_STREAM;
jbe@98 973 hints.ai_protocol = IPPROTO_TCP;
jbe@98 974 hints.ai_flags = AI_ADDRCONFIG;
jbe@98 975 errcode = getaddrinfo(host, port, &hints, &res);
jbe@98 976 if (errcode) {
jbe@102 977 freeaddrinfo(res);
jbe@98 978 if (errcode == EAI_SYSTEM) {
jbe@98 979 moonbr_io_errmsg();
jbe@98 980 lua_pushnil(L);
jbe@98 981 lua_pushfstring(L, "%s: %s", gai_strerror(errcode), errmsg);
jbe@98 982 } else {
jbe@98 983 lua_pushnil(L);
jbe@98 984 lua_pushstring(L, gai_strerror(errcode));
jbe@98 985 }
jbe@98 986 return 2;
jbe@98 987 }
jbe@98 988 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
jbe@134 989 if (addrinfo->ai_family == AF_INET6) goto moonbr_io_tcpconnect_found;
jbe@98 990 }
jbe@98 991 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
jbe@134 992 if (addrinfo->ai_family == AF_INET) goto moonbr_io_tcpconnect_found;
jbe@98 993 }
jbe@98 994 addrinfo = res;
jbe@98 995 moonbr_io_tcpconnect_found:
jbe@99 996 sock = socket(
jbe@134 997 addrinfo->ai_family, /* NOTE: not correctly using PF_* but AF_* constants here */
jbe@99 998 addrinfo->ai_socktype | SOCK_CLOEXEC | (nonblocking ? SOCK_NONBLOCK : 0),
jbe@99 999 addrinfo->ai_protocol
jbe@99 1000 );
jbe@98 1001 if (sock < 0) {
jbe@98 1002 moonbr_io_errmsg();
jbe@108 1003 freeaddrinfo(res);
jbe@98 1004 lua_pushnil(L);
jbe@98 1005 lua_pushstring(L, errmsg);
jbe@108 1006 return 2;
jbe@98 1007 }
jbe@98 1008 if (connect(sock, addrinfo->ai_addr, addrinfo->ai_addrlen)) {
jbe@108 1009 freeaddrinfo(res);
jbe@99 1010 if (!nonblocking && errno == EINTR) {
jbe@99 1011 moonbr_io_errmsg();
jbe@99 1012 close(sock);
jbe@99 1013 lua_pushnil(L);
jbe@99 1014 lua_pushstring(L, errmsg);
jbe@99 1015 return 2;
jbe@99 1016 } else if (!(nonblocking && (errno == EINPROGRESS || errno == EINTR))) {
jbe@99 1017 moonbr_io_errmsg();
jbe@99 1018 lua_pushnil(L);
jbe@99 1019 lua_pushstring(L, errmsg);
jbe@99 1020 return 2;
jbe@99 1021 }
jbe@108 1022 } else {
jbe@108 1023 freeaddrinfo(res);
jbe@98 1024 }
jbe@107 1025 moonbr_io_pushhandle(L, sock);
jbe@98 1026 return 1;
jbe@98 1027 }
jbe@98 1028
jbe@99 1029 static int moonbr_io_tcpconnect(lua_State *L) {
jbe@99 1030 return moonbr_io_tcpconnect_impl(L, 0);
jbe@99 1031 }
jbe@99 1032
jbe@99 1033 static int moonbr_io_tcpconnect_nb(lua_State *L) {
jbe@99 1034 return moonbr_io_tcpconnect_impl(L, 1);
jbe@99 1035 }
jbe@99 1036
jbe@112 1037 static int moonbr_io_locallisten(lua_State *L) {
jbe@112 1038 moonbr_io_listener_t *listener;
jbe@112 1039 const char *path;
jbe@118 1040 struct stat sb;
jbe@112 1041 struct sockaddr_un sockaddr = { .sun_family = AF_LOCAL };
jbe@112 1042 const int path_maxlen = sizeof(struct sockaddr_un) - (
jbe@112 1043 (void *)sockaddr.sun_path - (void *)&sockaddr
jbe@112 1044 ) - 1; /* one byte for termination */
jbe@112 1045 int sock;
jbe@112 1046 path = luaL_checkstring(L, 1);
jbe@112 1047 if (strlen(path) > path_maxlen) luaL_error(L, "Path too long; only %i characters allowed", path_maxlen);
jbe@112 1048 strcpy(sockaddr.sun_path, path);
jbe@118 1049 if (stat(path, &sb) == 0) {
jbe@118 1050 if (S_ISSOCK(sb.st_mode)) unlink(path);
jbe@118 1051 }
jbe@112 1052 listener = lua_newuserdata(L, sizeof(moonbr_io_listener_t));
jbe@117 1053 listener->fd = -1;
jbe@112 1054 luaL_setmetatable(L, MOONBR_IO_LISTENER_MT_REGKEY);
jbe@112 1055 sock = socket(
jbe@112 1056 PF_LOCAL,
jbe@112 1057 SOCK_STREAM | SOCK_CLOEXEC,
jbe@112 1058 0
jbe@112 1059 );
jbe@112 1060 if (sock < 0) {
jbe@112 1061 moonbr_io_errmsg();
jbe@112 1062 lua_pushnil(L);
jbe@112 1063 lua_pushstring(L, errmsg);
jbe@112 1064 return 2;
jbe@112 1065 }
jbe@112 1066 if (bind(sock, (struct sockaddr *)&sockaddr, sizeof(sockaddr))) {
jbe@112 1067 moonbr_io_errmsg();
jbe@112 1068 close(sock);
jbe@112 1069 lua_pushnil(L);
jbe@112 1070 lua_pushstring(L, errmsg);
jbe@112 1071 return 2;
jbe@112 1072 }
jbe@112 1073 if (listen(sock, MOONBR_IO_LISTEN_BACKLOG)) {
jbe@112 1074 moonbr_io_errmsg();
jbe@112 1075 close(sock);
jbe@112 1076 lua_pushnil(L);
jbe@112 1077 lua_pushstring(L, errmsg);
jbe@112 1078 return 2;
jbe@112 1079 }
jbe@112 1080 listener->fd = sock;
jbe@118 1081 listener->addrfam = AF_LOCAL;
jbe@112 1082 listener->nonblocking = -1;
jbe@112 1083 return 1;
jbe@112 1084 }
jbe@112 1085
jbe@108 1086 static int moonbr_io_tcplisten(lua_State *L) {
jbe@108 1087 moonbr_io_listener_t *listener;
jbe@108 1088 const char *host, *port;
jbe@108 1089 struct addrinfo hints = { 0, };
jbe@108 1090 struct addrinfo *res, *addrinfo;
jbe@108 1091 int errcode;
jbe@108 1092 int sock;
jbe@108 1093 host = luaL_optstring(L, 1, NULL);
jbe@108 1094 port = luaL_checkstring(L, 2);
jbe@108 1095 listener = lua_newuserdata(L, sizeof(moonbr_io_listener_t));
jbe@117 1096 listener->fd = -1;
jbe@108 1097 luaL_setmetatable(L, MOONBR_IO_LISTENER_MT_REGKEY);
jbe@108 1098 hints.ai_family = AF_UNSPEC;
jbe@108 1099 hints.ai_socktype = SOCK_STREAM;
jbe@108 1100 hints.ai_protocol = IPPROTO_TCP;
jbe@108 1101 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
jbe@108 1102 errcode = getaddrinfo(host, port, &hints, &res);
jbe@108 1103 if (errcode) {
jbe@108 1104 freeaddrinfo(res);
jbe@108 1105 if (errcode == EAI_SYSTEM) {
jbe@108 1106 moonbr_io_errmsg();
jbe@108 1107 lua_pushnil(L);
jbe@108 1108 lua_pushfstring(L, "%s: %s", gai_strerror(errcode), errmsg);
jbe@108 1109 } else {
jbe@108 1110 lua_pushnil(L);
jbe@108 1111 lua_pushstring(L, gai_strerror(errcode));
jbe@108 1112 }
jbe@108 1113 return 2;
jbe@108 1114 }
jbe@108 1115 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
jbe@134 1116 if (addrinfo->ai_family == AF_INET6) goto moonbr_io_tcpconnect_found;
jbe@108 1117 }
jbe@108 1118 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
jbe@134 1119 if (addrinfo->ai_family == AF_INET) goto moonbr_io_tcpconnect_found;
jbe@108 1120 }
jbe@108 1121 addrinfo = res;
jbe@108 1122 moonbr_io_tcpconnect_found:
jbe@118 1123 listener->addrfam = addrinfo->ai_family;
jbe@108 1124 sock = socket(
jbe@134 1125 addrinfo->ai_family, /* NOTE: not correctly using PF_* but AF_* constants here */
jbe@108 1126 addrinfo->ai_socktype | SOCK_CLOEXEC,
jbe@108 1127 addrinfo->ai_protocol
jbe@108 1128 );
jbe@108 1129 if (sock < 0) {
jbe@108 1130 moonbr_io_errmsg();
jbe@108 1131 freeaddrinfo(res);
jbe@108 1132 lua_pushnil(L);
jbe@108 1133 lua_pushstring(L, errmsg);
jbe@108 1134 return 2;
jbe@108 1135 }
jbe@120 1136 {
jbe@120 1137 static const int reuseval = 1;
jbe@120 1138 if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &reuseval, sizeof(reuseval))) {
jbe@120 1139 moonbr_io_errmsg();
jbe@120 1140 freeaddrinfo(res);
jbe@120 1141 close(sock);
jbe@120 1142 lua_pushnil(L);
jbe@120 1143 lua_pushfstring(L, "Error while setting SO_REUSEADDR with setsockopt: %s", errmsg);
jbe@120 1144 return 2;
jbe@120 1145 }
jbe@120 1146 }
jbe@108 1147 if (bind(sock, addrinfo->ai_addr, addrinfo->ai_addrlen)) {
jbe@108 1148 moonbr_io_errmsg();
jbe@108 1149 freeaddrinfo(res);
jbe@108 1150 close(sock);
jbe@108 1151 lua_pushnil(L);
jbe@108 1152 lua_pushstring(L, errmsg);
jbe@108 1153 return 2;
jbe@108 1154 }
jbe@108 1155 freeaddrinfo(res);
jbe@108 1156 if (listen(sock, MOONBR_IO_LISTEN_BACKLOG)) {
jbe@108 1157 moonbr_io_errmsg();
jbe@108 1158 close(sock);
jbe@108 1159 lua_pushnil(L);
jbe@108 1160 lua_pushstring(L, errmsg);
jbe@108 1161 return 2;
jbe@108 1162 }
jbe@108 1163 listener->fd = sock;
jbe@108 1164 listener->nonblocking = -1;
jbe@108 1165 return 1;
jbe@108 1166 }
jbe@108 1167
jbe@108 1168 static int moonbr_io_accept_impl(lua_State *L, int nonblocking) {
jbe@108 1169 moonbr_io_listener_t *listener;
jbe@108 1170 int fd;
jbe@108 1171 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
jbe@108 1172 if (listener->fd < 0) luaL_error(L, "Attempt to use a closed listener");
jbe@108 1173 if (listener->nonblocking != nonblocking) {
jbe@108 1174 int flags;
jbe@108 1175 flags = fcntl(listener->fd, F_GETFL, 0);
jbe@108 1176 if (flags == -1) {
jbe@108 1177 moonbr_io_errmsg();
jbe@108 1178 close(listener->fd);
jbe@108 1179 listener->fd = -1;
jbe@108 1180 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
jbe@108 1181 }
jbe@108 1182 if (nonblocking) flags |= O_NONBLOCK;
jbe@108 1183 else flags &= ~O_NONBLOCK;
jbe@108 1184 if (fcntl(listener->fd, F_SETFL, flags) == -1) {
jbe@108 1185 moonbr_io_errmsg();
jbe@108 1186 close(listener->fd);
jbe@108 1187 listener->fd = -1;
jbe@108 1188 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
jbe@108 1189 }
jbe@108 1190 listener->nonblocking = nonblocking;
jbe@108 1191 }
jbe@108 1192 while (1) {
jbe@214 1193 #if defined(__linux__) && !defined(_GNU_SOURCE)
jbe@215 1194 fd = accept(listener->fd, NULL, NULL);
jbe@214 1195 if (fd != -1) {
jbe@214 1196 if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1) {
jbe@214 1197 moonbr_io_errmsg();
jbe@214 1198 close(listener->fd);
jbe@214 1199 listener->fd = -1;
jbe@214 1200 close(fd);
jbe@214 1201 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
jbe@214 1202 }
jbe@214 1203 }
jbe@214 1204 #else
jbe@108 1205 fd = accept4(listener->fd, NULL, NULL, SOCK_CLOEXEC);
jbe@214 1206 #endif
jbe@108 1207 if (fd < 0) {
jbe@108 1208 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
jbe@108 1209 lua_pushboolean(L, 0);
jbe@108 1210 lua_pushliteral(L, "No incoming connection pending");
jbe@108 1211 return 2;
jbe@108 1212 } else if (errno != EINTR) {
jbe@108 1213 moonbr_io_errmsg();
jbe@108 1214 lua_pushnil(L);
jbe@108 1215 lua_pushstring(L, errmsg);
jbe@108 1216 return 2;
jbe@108 1217 }
jbe@108 1218 } else {
jbe@108 1219 moonbr_io_pushhandle(L, fd);
jbe@108 1220 return 1;
jbe@108 1221 }
jbe@108 1222 }
jbe@108 1223 }
jbe@108 1224
jbe@108 1225 static int moonbr_io_accept(lua_State *L) {
jbe@108 1226 return moonbr_io_accept_impl(L, 0);
jbe@108 1227 }
jbe@108 1228
jbe@108 1229 static int moonbr_io_accept_nb(lua_State *L) {
jbe@108 1230 return moonbr_io_accept_impl(L, 1);
jbe@108 1231 }
jbe@108 1232
jbe@108 1233 static int moonbr_io_unlisten(lua_State *L) {
jbe@108 1234 moonbr_io_listener_t *listener;
jbe@118 1235 struct sockaddr_un addr;
jbe@118 1236 socklen_t addrlen;
jbe@118 1237 struct stat sb;
jbe@108 1238 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
jbe@108 1239 if (listener->fd < 0) luaL_error(L, "Attempt to close a closed listener");
jbe@118 1240 addrlen = sizeof(addr);
jbe@118 1241 if (getsockname(listener->fd, (struct sockaddr *)&addr, &addrlen)) addrlen = 0;
jbe@108 1242 if (close(listener->fd)) {
jbe@108 1243 moonbr_io_errmsg();
jbe@108 1244 listener->fd = -1;
jbe@118 1245 if (addrlen && addrlen <= sizeof(addr)) {
jbe@118 1246 if (stat(addr.sun_path, &sb) == 0) {
jbe@118 1247 if (S_ISSOCK(sb.st_mode)) unlink(addr.sun_path);
jbe@118 1248 }
jbe@118 1249 }
jbe@108 1250 lua_pushnil(L);
jbe@108 1251 lua_pushstring(L, errmsg);
jbe@108 1252 return 2;
jbe@108 1253 }
jbe@108 1254 listener->fd = -1;
jbe@118 1255 if (addrlen && addrlen <= sizeof(addr)) {
jbe@118 1256 if (stat(addr.sun_path, &sb) == 0) {
jbe@118 1257 if (S_ISSOCK(sb.st_mode)) unlink(addr.sun_path);
jbe@118 1258 }
jbe@118 1259 }
jbe@108 1260 lua_pushboolean(L, 1);
jbe@108 1261 return 1;
jbe@108 1262 }
jbe@108 1263
jbe@108 1264 static int moonbr_io_listenergc(lua_State *L) {
jbe@108 1265 moonbr_io_listener_t *listener;
jbe@108 1266 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
jbe@117 1267 if (listener->fd >= 0) close(listener->fd);
jbe@108 1268 listener->fd = -1;
jbe@108 1269 return 0;
jbe@108 1270 }
jbe@108 1271
jbe@205 1272 static int moonbr_io_exec(lua_State *L) {
jbe@205 1273 char **argv;
jbe@205 1274 int i, argc;
jbe@205 1275 int sockin[2], sockout[2], sockerr[2];
jbe@205 1276 volatile int errorcond = 0;
jbe@213 1277 volatile char errmsgbuf[MOONBR_IO_MAXSTRERRORLEN] = MOONBR_IO_STRERROR_R_MSG;
jbe@205 1278 moonbr_io_child_t *child;
jbe@205 1279 argc = lua_gettop(L);
jbe@205 1280 argv = lua_newuserdata(L, (argc + 1) * sizeof(char *));
jbe@205 1281 for (i=0; i<argc; i++) argv[i] = (char *)luaL_checkstring(L, i+1);
jbe@205 1282 argv[argc] = NULL;
jbe@208 1283 child = lua_newuserdata(L, sizeof(moonbr_io_child_t));
jbe@208 1284 child->pid = 0;
jbe@208 1285 lua_newtable(L);
jbe@208 1286 lua_setuservalue(L, -2);
jbe@238 1287 luaL_setmetatable(L, MOONBR_IO_CHILD_MT_REGKEY);
jbe@206 1288 if (socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, sockin)) {
jbe@205 1289 moonbr_io_errmsg();
jbe@205 1290 lua_pushnil(L);
jbe@205 1291 lua_pushfstring(L, "Could not create socket pair: %s", errmsg);
jbe@205 1292 return 2;
jbe@205 1293 }
jbe@206 1294 if (socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, sockout)) {
jbe@205 1295 moonbr_io_errmsg();
jbe@205 1296 close(sockin[0]);
jbe@205 1297 close(sockin[1]);
jbe@205 1298 lua_pushnil(L);
jbe@205 1299 lua_pushfstring(L, "Could not create socket pair: %s", errmsg);
jbe@205 1300 return 2;
jbe@205 1301 }
jbe@206 1302 if (socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, sockerr)) {
jbe@205 1303 moonbr_io_errmsg();
jbe@205 1304 close(sockin[0]);
jbe@205 1305 close(sockin[1]);
jbe@205 1306 close(sockout[0]);
jbe@205 1307 close(sockout[1]);
jbe@205 1308 lua_pushnil(L);
jbe@205 1309 lua_pushfstring(L, "Could not create socket pair: %s", errmsg);
jbe@205 1310 return 2;
jbe@205 1311 }
jbe@205 1312 child->pid = vfork();
jbe@205 1313 if (child->pid == -1) {
jbe@205 1314 moonbr_io_errmsg();
jbe@205 1315 close(sockin[0]);
jbe@205 1316 close(sockin[1]);
jbe@205 1317 close(sockout[0]);
jbe@205 1318 close(sockout[1]);
jbe@205 1319 close(sockerr[0]);
jbe@205 1320 close(sockerr[1]);
jbe@205 1321 lua_pushnil(L);
jbe@205 1322 lua_pushfstring(L, "Could not fork: %s", errmsg);
jbe@205 1323 return 2;
jbe@205 1324 }
jbe@205 1325 if (!child->pid) {
jbe@208 1326 if (dup2(sockin[1], 0) == -1) goto moonbr_io_exec_error1;
jbe@208 1327 if (dup2(sockout[1], 1) == -1) goto moonbr_io_exec_error1;
jbe@208 1328 if (dup2(sockerr[1], 2) == -1) goto moonbr_io_exec_error1;
jbe@232 1329 closefrom(3);
jbe@208 1330 if (fcntl(0, F_SETFD, 0) == -1) goto moonbr_io_exec_error1;
jbe@208 1331 if (fcntl(1, F_SETFD, 0) == -1) goto moonbr_io_exec_error1;
jbe@208 1332 if (fcntl(2, F_SETFD, 0) == -1) goto moonbr_io_exec_error1;
jbe@205 1333 if (execvp(argv[0], argv)) {
jbe@205 1334 errorcond = 2;
jbe@205 1335 strerror_r(errno, (char *)errmsgbuf, MOONBR_IO_MAXSTRERRORLEN);
jbe@205 1336 _exit(0);
jbe@205 1337 }
jbe@208 1338 moonbr_io_exec_error1:
jbe@206 1339 errorcond = 1;
jbe@206 1340 strerror_r(errno, (char *)errmsgbuf, MOONBR_IO_MAXSTRERRORLEN);
jbe@206 1341 _exit(0);
jbe@205 1342 }
jbe@205 1343 close(sockin[1]);
jbe@205 1344 close(sockout[1]);
jbe@205 1345 close(sockerr[1]);
jbe@205 1346 if (errorcond) {
jbe@205 1347 int status;
jbe@205 1348 close(sockin[0]);
jbe@205 1349 close(sockout[0]);
jbe@205 1350 close(sockerr[0]);
jbe@205 1351 while (waitpid(child->pid, &status, 0) == -1) {
jbe@205 1352 if (errno != EINTR) {
jbe@205 1353 moonbr_io_errmsg();
jbe@205 1354 luaL_error(L, "Error in waitpid call after unsuccessful exec: %s", errmsg);
jbe@205 1355 }
jbe@205 1356 }
jbe@208 1357 child->pid = 0;
jbe@205 1358 lua_pushnil(L);
jbe@205 1359 if (errorcond == 2) lua_pushfstring(L, "Could not execute: %s", errmsgbuf);
jbe@205 1360 else lua_pushfstring(L, "Error in fork: %s", errmsgbuf);
jbe@205 1361 return 2;
jbe@205 1362 }
jbe@208 1363 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
jbe@208 1364 lua_pushlightuserdata(L, &sockin[0]);
jbe@208 1365 if (lua_pcall(L, 1, 1, 0)) {
jbe@208 1366 if (sockin[0] != -1) close(sockin[0]);
jbe@208 1367 close(sockout[0]);
jbe@208 1368 close(sockerr[0]);
jbe@208 1369 goto moonbr_io_exec_error2;
jbe@208 1370 }
jbe@205 1371 lua_setfield(L, -2, "stdin");
jbe@208 1372 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
jbe@208 1373 lua_pushlightuserdata(L, &sockout[0]);
jbe@208 1374 if (lua_pcall(L, 1, 1, 0)) {
jbe@208 1375 if (sockout[0] != -1) close(sockout[0]);
jbe@208 1376 close(sockerr[0]);
jbe@208 1377 goto moonbr_io_exec_error2;
jbe@208 1378 }
jbe@205 1379 lua_setfield(L, -2, "stdout");
jbe@208 1380 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
jbe@208 1381 lua_pushlightuserdata(L, &sockerr[0]);
jbe@208 1382 if (lua_pcall(L, 1, 1, 0)) {
jbe@208 1383 if (sockerr[0] != -1) close(sockerr[0]);
jbe@208 1384 goto moonbr_io_exec_error2;
jbe@208 1385 }
jbe@205 1386 lua_setfield(L, -2, "stderr");
jbe@205 1387 return 1;
jbe@208 1388 moonbr_io_exec_error2:
jbe@208 1389 {
jbe@208 1390 int status;
jbe@208 1391 while (waitpid(child->pid, &status, 0) == -1) {
jbe@208 1392 if (errno != EINTR) {
jbe@208 1393 moonbr_io_errmsg();
jbe@208 1394 luaL_error(L, "Error in waitpid call after error creating socket handles: %s", errmsg);
jbe@208 1395 }
jbe@208 1396 }
jbe@208 1397 }
jbe@208 1398 child->pid = 0;
jbe@208 1399 return lua_error(L);
jbe@205 1400 }
jbe@205 1401
jbe@205 1402 static int moonbr_io_childindex(lua_State *L) {
jbe@205 1403 luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
jbe@205 1404 luaL_checkany(L, 2);
jbe@205 1405 lua_getuservalue(L, 1);
jbe@205 1406 lua_pushvalue(L, 2);
jbe@205 1407 lua_gettable(L, -2);
jbe@205 1408 if (lua_isnil(L, -1)) {
jbe@205 1409 luaL_getmetatable(L, MOONBR_IO_CHILD_PT_REGKEY);
jbe@205 1410 lua_pushvalue(L, 2);
jbe@205 1411 lua_gettable(L, -2);
jbe@205 1412 }
jbe@205 1413 return 1;
jbe@205 1414 }
jbe@205 1415
jbe@205 1416 static int moonbr_io_childnewindex(lua_State *L) {
jbe@205 1417 luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
jbe@205 1418 luaL_checkany(L, 2);
jbe@205 1419 luaL_checkany(L, 3);
jbe@205 1420 lua_getuservalue(L, 1);
jbe@205 1421 lua_pushvalue(L, 2);
jbe@205 1422 lua_pushvalue(L, 3);
jbe@205 1423 lua_settable(L, -3);
jbe@205 1424 return 0;
jbe@205 1425 }
jbe@205 1426
jbe@205 1427 static int moonbr_io_childgc(lua_State *L) {
jbe@205 1428 moonbr_io_child_t *child;
jbe@205 1429 child = luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
jbe@205 1430 if (child->pid) {
jbe@205 1431 int status;
jbe@205 1432 if (kill(child->pid, SIGKILL)) {
jbe@205 1433 moonbr_io_errmsg();
jbe@205 1434 luaL_error(L, "Error in kill call during garbage collection: %s", errmsg);
jbe@205 1435 }
jbe@205 1436 while (waitpid(child->pid, &status, 0) == -1) {
jbe@205 1437 if (errno != EINTR) {
jbe@205 1438 moonbr_io_errmsg();
jbe@205 1439 luaL_error(L, "Error in waitpid call during garbage collection: %s", errmsg);
jbe@205 1440 }
jbe@205 1441 }
jbe@205 1442 }
jbe@205 1443 return 0;
jbe@205 1444 }
jbe@205 1445
jbe@205 1446 static int moonbr_io_kill(lua_State *L) {
jbe@205 1447 moonbr_io_child_t *child;
jbe@205 1448 int sig;
jbe@205 1449 child = luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
jbe@205 1450 sig = luaL_optinteger(L, 2, SIGTERM);
jbe@205 1451 if (!child->pid) luaL_error(L, "Attempt to kill an already collected child process");
jbe@205 1452 if (kill(child->pid, sig)) {
jbe@205 1453 moonbr_io_errmsg();
jbe@205 1454 luaL_error(L, "Error in kill call: %s", errmsg);
jbe@205 1455 }
jbe@205 1456 lua_settop(L, 1);
jbe@205 1457 return 1;
jbe@205 1458 }
jbe@205 1459
jbe@205 1460 static int moonbr_io_wait_impl(lua_State *L, int nonblocking) {
jbe@205 1461 moonbr_io_child_t *child;
jbe@205 1462 pid_t waitedpid;
jbe@205 1463 int status;
jbe@205 1464 child = luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
jbe@205 1465 if (!child->pid) luaL_error(L, "Attempt to wait for an already collected child process");
jbe@205 1466 while ((waitedpid = waitpid(child->pid, &status, nonblocking ? WNOHANG : 0)) == -1) {
jbe@205 1467 if (errno != EINTR) {
jbe@205 1468 moonbr_io_errmsg();
jbe@205 1469 luaL_error(L, "Error in waitpid call: %s", errmsg);
jbe@205 1470 }
jbe@205 1471 }
jbe@205 1472 if (!waitedpid) {
jbe@219 1473 lua_pushboolean(L, 0);
jbe@219 1474 lua_pushliteral(L, "Process is still running");
jbe@219 1475 return 2;
jbe@205 1476 } else {
jbe@205 1477 child->pid = 0;
jbe@205 1478 if (WIFEXITED(status)) {
jbe@205 1479 lua_pushinteger(L, WEXITSTATUS(status));
jbe@205 1480 } else if (WIFSIGNALED(status)) {
jbe@205 1481 lua_pushinteger(L, -WTERMSIG(status));
jbe@205 1482 } else {
jbe@205 1483 luaL_error(L, "Unexpected status value returned by waitpid call");
jbe@205 1484 }
jbe@219 1485 return 1;
jbe@205 1486 }
jbe@205 1487 }
jbe@205 1488
jbe@205 1489 static int moonbr_io_wait(lua_State *L) {
jbe@205 1490 return moonbr_io_wait_impl(L, 0);
jbe@205 1491 }
jbe@205 1492
jbe@205 1493 static int moonbr_io_wait_nb(lua_State *L) {
jbe@205 1494 return moonbr_io_wait_impl(L, 1);
jbe@205 1495 }
jbe@205 1496
jbe@205 1497 #if LUA_VERSION_NUM >= 503
jbe@205 1498 static int moonbr_io_wait_cont(lua_State *L, int status, lua_KContext ctx) {
jbe@205 1499 #else
jbe@205 1500 static int moonbr_io_wait_cont(lua_State *L) {
jbe@205 1501 #endif
jbe@205 1502 #if !(LUA_VERSION_NUM >= 503)
jbe@205 1503 int ctx = 0;
jbe@205 1504 lua_getctx(L, &ctx);
jbe@205 1505 #endif
jbe@205 1506 while (1) {
jbe@205 1507 lua_pushcfunction(L, moonbr_io_wait_nb);
jbe@205 1508 lua_pushvalue(L, 1);
jbe@205 1509 lua_call(L, 1, 1);
jbe@205 1510 if (!lua_isnil(L, -1)) break;
jbe@205 1511 lua_pushvalue(L, 2);
jbe@205 1512 lua_callk(L, 0, 0, ctx, moonbr_io_wait_cont);
jbe@205 1513 }
jbe@205 1514 return 1;
jbe@205 1515 }
jbe@205 1516
jbe@205 1517 static int moonbr_io_wait_call(lua_State *L) {
jbe@205 1518 lua_settop(L, 2);
jbe@205 1519 #if LUA_VERSION_NUM >= 503
jbe@205 1520 return moonbr_io_wait_cont(L, 0, 0);
jbe@205 1521 #else
jbe@205 1522 return moonbr_io_wait_cont(L);
jbe@205 1523 #endif
jbe@205 1524 }
jbe@205 1525
jbe@205 1526 moonbr_io_yield_wrapper(moonbr_io_wait_yield, moonbr_io_wait_call);
jbe@205 1527
jbe@106 1528 static int moonbr_io_poll(lua_State *L) {
jbe@106 1529 moonbr_io_handle_t *handle;
jbe@108 1530 moonbr_io_listener_t *listener;
jbe@106 1531 int fd, isnum;
jbe@106 1532 int nfds = 0;
jbe@106 1533 fd_set readfds, writefds, exceptfds;
jbe@106 1534 struct timeval timeout = {0, };
jbe@106 1535 int status;
jbe@106 1536 FD_ZERO(&readfds);
jbe@106 1537 FD_ZERO(&writefds);
jbe@106 1538 FD_ZERO(&exceptfds);
jbe@106 1539 if (!lua_isnoneornil(L, 1)) {
jbe@106 1540 luaL_checktype(L, 1, LUA_TTABLE);
jbe@106 1541 for (lua_pushnil(L); lua_next(L, 1); lua_pop(L, 1)) {
jbe@106 1542 if (lua_toboolean(L, -1)) {
jbe@106 1543 handle = luaL_testudata(L, -2, MOONBR_IO_HANDLE_MT_REGKEY);
jbe@106 1544 if (handle) {
jbe@109 1545 if (handle->closed) luaL_error(L, "Attempt to poll a closed connection");
jbe@106 1546 fd = handle->fd;
jbe@122 1547 if (
jbe@122 1548 fd < 0 || /* fake EOF to simulate shutdown if fd < 0 */
jbe@122 1549 handle->readbufin != handle->readbufout /* data pending in buffer */
jbe@122 1550 ) {
jbe@109 1551 lua_pushboolean(L, 1);
jbe@109 1552 return 1;
jbe@109 1553 }
jbe@106 1554 } else {
jbe@108 1555 listener = luaL_testudata(L, -2, MOONBR_IO_LISTENER_MT_REGKEY);
jbe@108 1556 if (listener) {
jbe@108 1557 fd = listener->fd;
jbe@108 1558 if (fd < 0) luaL_error(L, "Attempt to poll a closed listener");
jbe@108 1559 } else {
jbe@108 1560 fd = lua_tointegerx(L, -2, &isnum);
jbe@108 1561 if (!isnum) luaL_error(L, "Expected integer (file descriptor), I/O handle, or listener in table key");
jbe@108 1562 }
jbe@106 1563 }
jbe@138 1564 if (fd < 0 || fd >= FD_SETSIZE) luaL_error(L, "File descriptor out of valid range");
jbe@106 1565 FD_SET(fd, &readfds);
jbe@106 1566 if (fd+1 > nfds) nfds = fd+1;
jbe@106 1567 }
jbe@106 1568 }
jbe@106 1569 }
jbe@106 1570 if (!lua_isnoneornil(L, 2)) {
jbe@106 1571 luaL_checktype(L, 2, LUA_TTABLE);
jbe@106 1572 for (lua_pushnil(L); lua_next(L, 2); lua_pop(L, 1)) {
jbe@106 1573 if (lua_toboolean(L, -1)) {
jbe@106 1574 handle = luaL_testudata(L, -2, MOONBR_IO_HANDLE_MT_REGKEY);
jbe@106 1575 if (handle) {
jbe@109 1576 if (handle->closed) luaL_error(L, "Attempt to poll a closed connection");
jbe@109 1577 if (handle->finished) luaL_error(L, "Attempt to write-poll a finished connection");
jbe@106 1578 fd = handle->fd;
jbe@106 1579 } else {
jbe@108 1580 listener = luaL_testudata(L, -2, MOONBR_IO_LISTENER_MT_REGKEY);
jbe@109 1581 if (listener) luaL_error(L, "Attempt to write-poll a listener");
jbe@109 1582 fd = lua_tointegerx(L, -2, &isnum);
jbe@109 1583 if (!isnum) luaL_error(L, "Expected integer (file descriptor) or I/O handle in table key");
jbe@106 1584 }
jbe@138 1585 if (fd < 0 || fd >= FD_SETSIZE) luaL_error(L, "File descriptor out of valid range");
jbe@106 1586 FD_SET(fd, &writefds);
jbe@106 1587 if (fd+1 > nfds) nfds = fd+1;
jbe@106 1588 }
jbe@106 1589 }
jbe@106 1590 }
jbe@106 1591 if (!lua_isnoneornil(L, 3)) {
jbe@106 1592 lua_Number n;
jbe@106 1593 n = lua_tonumberx(L, 3, &isnum);
jbe@146 1594 if (isnum && n<0) {
jbe@146 1595 lua_pushboolean(L, 0);
jbe@146 1596 lua_pushliteral(L, "Negative timeout");
jbe@146 1597 return 2;
jbe@146 1598 } else if (isnum && n>=0 && n<100000000) {
jbe@106 1599 timeout.tv_sec = n;
jbe@106 1600 timeout.tv_usec = 1e6 * (n - timeout.tv_sec);
jbe@106 1601 } else {
jbe@106 1602 luaL_argcheck(L, 0, 3, "not a valid timeout");
jbe@106 1603 }
jbe@106 1604 status = select(nfds, &readfds, &writefds, &exceptfds, &timeout);
jbe@106 1605 } else {
jbe@106 1606 status = select(nfds, &readfds, &writefds, &exceptfds, NULL);
jbe@106 1607 }
jbe@106 1608 if (status == -1) {
jbe@106 1609 if (errno == EINTR) {
jbe@146 1610 lua_pushnil(L);
jbe@106 1611 lua_pushliteral(L, "Signal received while polling file descriptors");
jbe@106 1612 return 2;
jbe@106 1613 } else {
jbe@106 1614 moonbr_io_errmsg();
jbe@106 1615 return luaL_error(L, "Unexpected error during \"select\" system call: %s", errmsg);
jbe@106 1616 }
jbe@106 1617 } else if (status == 0) {
jbe@106 1618 lua_pushboolean(L, 0);
jbe@106 1619 lua_pushliteral(L, "Timeout while polling file descriptors");
jbe@106 1620 return 2;
jbe@106 1621 } else {
jbe@106 1622 lua_pushboolean(L, 1);
jbe@106 1623 return 1;
jbe@106 1624 }
jbe@106 1625 }
jbe@106 1626
jbe@115 1627 static int moonbr_io_timeref(lua_State *L) {
jbe@115 1628 lua_Number sub;
jbe@115 1629 struct timespec tp;
jbe@115 1630 sub = luaL_optnumber(L, 1, 0);
jbe@115 1631 if (clock_gettime(CLOCK_MONOTONIC, &tp)) {
jbe@115 1632 return luaL_error(L, "Could not access CLOCK_MONOTONIC");
jbe@115 1633 }
jbe@115 1634 lua_pushnumber(L, tp.tv_sec + tp.tv_nsec / 1.0e9 - sub);
jbe@115 1635 return 1;
jbe@115 1636 }
jbe@115 1637
jbe@243 1638 #ifdef MOONBR_IO_USE_TLS
jbe@243 1639
jbe@243 1640 #define moonbr_io_tlsconf_string(name, field, func) \
jbe@243 1641 /* NOTE: use valuetype = lua_getfield(...) for LUA_VERSION_NUM >= 503 */ \
jbe@243 1642 lua_getfield(L, 1, (field)); \
jbe@243 1643 valuetype = lua_type(L, -1); \
jbe@243 1644 if (valuetype != LUA_TNIL) { \
jbe@243 1645 luaL_argcheck(L, valuetype == LUA_TSTRING, 1, "field \"" field "\" is not a string"); \
jbe@243 1646 value = lua_tostring(L, -1); \
jbe@243 1647 if (func(tlsconf, value)) { \
jbe@243 1648 lua_pushnil(L); \
jbe@243 1649 lua_pushfstring(L, "Could not set " name " \"%s\"", value); \
jbe@243 1650 return 2; \
jbe@243 1651 } \
jbe@243 1652 } \
jbe@243 1653 lua_pop(L, 1);
jbe@243 1654
jbe@243 1655 #define moonbr_io_tlsconf_binary(name, field, func) \
jbe@243 1656 /* NOTE: use valuetype = lua_getfield(...) for LUA_VERSION_NUM >= 503 */ \
jbe@243 1657 lua_getfield(L, 1, (field)); \
jbe@243 1658 valuetype = lua_type(L, -1); \
jbe@243 1659 if (valuetype != LUA_TNIL) { \
jbe@243 1660 luaL_argcheck(L, valuetype == LUA_TSTRING, 1, "field \"" field "\" is not a string"); \
jbe@243 1661 value = lua_tolstring(L, -1, &valuelen); \
jbe@243 1662 if (func(tlsconf, (void *)value, valuelen)) { \
jbe@243 1663 lua_pushnil(L); \
jbe@243 1664 lua_pushliteral(L, "Could not set " name); \
jbe@243 1665 return 2; \
jbe@243 1666 } \
jbe@243 1667 } \
jbe@243 1668 lua_pop(L, 1);
jbe@243 1669
jbe@243 1670 static int moonbr_io_tlsconf(lua_State *L) {
jbe@243 1671 struct tls_config *tlsconf;
jbe@243 1672 int valuetype;
jbe@243 1673 const char *value;
jbe@243 1674 size_t valuelen;
jbe@243 1675 luaL_checktype(L, 1, LUA_TTABLE);
jbe@243 1676 tlsconf = tls_config_new();
jbe@243 1677 if (!tlsconf) {
jbe@243 1678 return luaL_error(L, "Could not allocate memory for TLS configuration");
jbe@243 1679 }
jbe@243 1680 lua_pushlightuserdata(L, tlsconf);
jbe@243 1681 luaL_setmetatable(L, MOONBR_IO_TLSCONF_MT_REGKEY);
jbe@243 1682 lua_pushvalue(L, 1);
jbe@243 1683 lua_setuservalue(L, -2);
jbe@245 1684 #if LUA_VERSION_NUM >= 503
jbe@245 1685 if (lua_getfield(L, 1, "mode") == LUA_TSTRING) value = lua_tostring(L, -1);
jbe@245 1686 #else
jbe@245 1687 lua_getfield(L, 1, "mode");
jbe@245 1688 if (lua_type(L, -1) == LUA_TSTRING) value = lua_tostring(L, -1);
jbe@245 1689 #endif
jbe@245 1690 else value = "";
jbe@245 1691 if (strcmp(value, "server") && strcmp(value, "client")) {
jbe@245 1692 luaL_argcheck(L, 0, 1, "field \"mode\" must be set to \"server\" or \"client\"");
jbe@245 1693 }
jbe@245 1694 lua_pop(L, 1);
jbe@243 1695 moonbr_io_tlsconf_string("CA file", "ca_file", tls_config_set_ca_file);
jbe@243 1696 moonbr_io_tlsconf_string("CA path", "ca_path", tls_config_set_ca_path);
jbe@243 1697 moonbr_io_tlsconf_binary("CA", "ca_mem", tls_config_set_ca_mem);
jbe@243 1698 moonbr_io_tlsconf_string("certificate file", "cert_file", tls_config_set_cert_file);
jbe@243 1699 moonbr_io_tlsconf_binary("certificate", "cert_mem", tls_config_set_cert_mem);
jbe@243 1700 moonbr_io_tlsconf_string("key file", "key_file", tls_config_set_key_file);
jbe@243 1701 moonbr_io_tlsconf_binary("key", "key_mem", tls_config_set_key_mem);
jbe@245 1702 #if LUA_VERSION_NUM >= 503
jbe@245 1703 valuetype = lua_getfield(L, 1, "verify_client");
jbe@245 1704 #else
jbe@244 1705 lua_getfield(L, 1, "verify_client");
jbe@245 1706 #endif
jbe@244 1707 if (lua_toboolean(L, -1)) {
jbe@245 1708 #if LUA_VERSION_NUM >= 503
jbe@245 1709 if (valuetype == LUA_TSTRING) value = lua_tostring(L, -1);
jbe@245 1710 #else
jbe@244 1711 if (lua_type(L, -1) == LUA_TSTRING) value = lua_tostring(L, -1);
jbe@245 1712 #endif
jbe@244 1713 else value = "";
jbe@244 1714 if (!strcmp(value, "required")) {
jbe@244 1715 tls_config_verify_client(tlsconf);
jbe@244 1716 } else if (!strcmp(value, "optional")) {
jbe@244 1717 tls_config_verify_client_optional(tlsconf);
jbe@244 1718 } else {
jbe@244 1719 luaL_argcheck(L, 0, 1, "field \"verify_client\" must be set to \"required\", \"optional\", or be false or nil");
jbe@244 1720 }
jbe@244 1721 }
jbe@244 1722 lua_pop(L, 1);
jbe@243 1723 return 1;
jbe@243 1724 }
jbe@243 1725
jbe@243 1726 static int moonbr_io_tlsconfindex(lua_State *L) {
jbe@243 1727 struct tls_config *tlsconf;
jbe@243 1728 tlsconf = luaL_checkudata(L, 1, MOONBR_IO_TLSCONF_MT_REGKEY);
jbe@243 1729 luaL_checkany(L, 2);
jbe@243 1730 #if LUA_VERSION_NUM >= 503
jbe@243 1731 if (lua_getuservalue(L, 1) == LUA_TNIL) {
jbe@243 1732 #else
jbe@243 1733 lua_getuservalue(L, 1);
jbe@243 1734 if (lua_isnil(L, -1)) {
jbe@243 1735 #endif
jbe@243 1736 return luaL_error(L, "Attempt to use a destroyed TLS configuration");
jbe@243 1737 }
jbe@243 1738 lua_pushvalue(L, 2);
jbe@243 1739 lua_gettable(L, -2);
jbe@243 1740 return 1;
jbe@243 1741 }
jbe@243 1742
jbe@243 1743 static int moonbr_io_tlsconfgc(lua_State *L) {
jbe@243 1744 struct tls_config *tlsconf;
jbe@243 1745 tlsconf = luaL_checkudata(L, 1, MOONBR_IO_TLSCONF_MT_REGKEY);
jbe@243 1746 #if LUA_VERSION_NUM >= 503
jbe@243 1747 if (lua_getuservalue(L, 1) == LUA_TNIL) return 0;
jbe@243 1748 #else
jbe@243 1749 lua_getuservalue(L, 1);
jbe@243 1750 if (lua_isnil(L, -1)) return 0;
jbe@243 1751 #endif
jbe@243 1752 tls_config_free(tlsconf);
jbe@243 1753 lua_pushnil(L);
jbe@243 1754 lua_setuservalue(L, 1);
jbe@243 1755 return 0;
jbe@243 1756 }
jbe@243 1757
jbe@243 1758 #endif
jbe@243 1759
jbe@79 1760 static const struct luaL_Reg moonbr_io_handle_methods[] = {
jbe@85 1761 {"read", moonbr_io_read},
jbe@85 1762 {"read_nb", moonbr_io_read_nb},
jbe@140 1763 {"read_call", moonbr_io_read_call},
jbe@140 1764 {"read_yield", moonbr_io_read_yield},
jbe@86 1765 {"drain", moonbr_io_drain},
jbe@86 1766 {"drain_nb", moonbr_io_drain_nb},
jbe@144 1767 {"drain_call", moonbr_io_drain_call},
jbe@144 1768 {"drain_yield", moonbr_io_drain_yield},
jbe@80 1769 {"write", moonbr_io_write},
jbe@81 1770 {"write_nb", moonbr_io_write_nb},
jbe@145 1771 {"write_call", moonbr_io_write_call},
jbe@145 1772 {"write_yield", moonbr_io_write_yield},
jbe@80 1773 {"flush", moonbr_io_flush},
jbe@81 1774 {"flush_nb", moonbr_io_flush_nb},
jbe@145 1775 {"flush_call", moonbr_io_flush_call},
jbe@145 1776 {"flush_yield", moonbr_io_flush_yield},
jbe@88 1777 {"finish", moonbr_io_finish},
jbe@87 1778 {"close", moonbr_io_close},
jbe@85 1779 {"reset", moonbr_io_reset},
jbe@79 1780 {NULL, NULL}
jbe@79 1781 };
jbe@79 1782
jbe@79 1783 static const struct luaL_Reg moonbr_io_handle_metamethods[] = {
jbe@79 1784 {"__index", moonbr_io_handleindex},
jbe@79 1785 {"__newindex", moonbr_io_handlenewindex},
jbe@108 1786 {"__gc", moonbr_io_handlegc},
jbe@108 1787 {NULL, NULL}
jbe@108 1788 };
jbe@108 1789
jbe@108 1790 static const struct luaL_Reg moonbr_io_listener_methods[] = {
jbe@108 1791 {"accept", moonbr_io_accept},
jbe@108 1792 {"accept_nb", moonbr_io_accept_nb},
jbe@108 1793 {"close", moonbr_io_unlisten},
jbe@108 1794 {NULL, NULL}
jbe@108 1795 };
jbe@108 1796
jbe@108 1797 static const struct luaL_Reg moonbr_io_listener_metamethods[] = {
jbe@108 1798 {"__gc", moonbr_io_listenergc},
jbe@79 1799 {NULL, NULL}
jbe@79 1800 };
jbe@79 1801
jbe@205 1802 static const struct luaL_Reg moonbr_io_child_methods[] = {
jbe@205 1803 {"kill", moonbr_io_kill},
jbe@205 1804 {"wait", moonbr_io_wait},
jbe@205 1805 {"wait_nb", moonbr_io_wait_nb},
jbe@205 1806 {"wait_call", moonbr_io_wait_call},
jbe@205 1807 {"wait_yield", moonbr_io_wait_yield},
jbe@205 1808 {NULL, NULL}
jbe@205 1809 };
jbe@205 1810
jbe@205 1811 static const struct luaL_Reg moonbr_io_child_metamethods[] = {
jbe@205 1812 {"__index", moonbr_io_childindex},
jbe@205 1813 {"__newindex", moonbr_io_childnewindex},
jbe@205 1814 {"__gc", moonbr_io_childgc},
jbe@205 1815 {NULL, NULL}
jbe@205 1816 };
jbe@205 1817
jbe@79 1818 static const struct luaL_Reg moonbr_io_module_funcs[] = {
jbe@111 1819 {"localconnect", moonbr_io_localconnect},
jbe@111 1820 {"localconnect_nb", moonbr_io_localconnect_nb},
jbe@98 1821 {"tcpconnect", moonbr_io_tcpconnect},
jbe@99 1822 {"tcpconnect_nb", moonbr_io_tcpconnect_nb},
jbe@112 1823 {"locallisten", moonbr_io_locallisten},
jbe@108 1824 {"tcplisten", moonbr_io_tcplisten},
jbe@205 1825 {"exec", moonbr_io_exec},
jbe@106 1826 {"poll", moonbr_io_poll},
jbe@115 1827 {"timeref", moonbr_io_timeref},
jbe@243 1828 #ifdef MOONBR_IO_USE_TLS
jbe@243 1829 {"tlsconf", moonbr_io_tlsconf},
jbe@243 1830 #endif
jbe@79 1831 {NULL, NULL}
jbe@79 1832 };
jbe@79 1833
jbe@243 1834 #ifdef MOONBR_IO_USE_TLS
jbe@243 1835 static const struct luaL_Reg moonbr_io_tlsconf_metamethods[] = {
jbe@243 1836 {"__index", moonbr_io_tlsconfindex},
jbe@243 1837 {"__gc", moonbr_io_tlsconfgc},
jbe@243 1838 {NULL, NULL}
jbe@243 1839 };
jbe@243 1840 #endif
jbe@243 1841
jbe@79 1842 int luaopen_moonbridge_io(lua_State *L) {
jbe@79 1843
jbe@113 1844 signal(SIGPIPE, SIG_IGN); /* generate I/O errors instead of signal 13 */
jbe@113 1845
jbe@80 1846 lua_newtable(L); // module
jbe@80 1847
jbe@79 1848 lua_newtable(L); // public metatable
jbe@79 1849 lua_newtable(L); // handle methods
jbe@79 1850 luaL_setfuncs(L, moonbr_io_handle_methods, 0);
jbe@80 1851 lua_pushvalue(L, -1);
jbe@146 1852 lua_setfield(L, -4, "handle_pt");
jbe@79 1853 lua_setfield(L, -2, "__index");
jbe@79 1854 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
jbe@79 1855
jbe@79 1856 lua_newtable(L); // handle metatable
jbe@79 1857 luaL_setfuncs(L, moonbr_io_handle_metamethods, 0);
jbe@146 1858 lua_pushvalue(L, -1);
jbe@146 1859 lua_setfield(L, -3, "handle_mt");
jbe@79 1860 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_MT_REGKEY);
jbe@79 1861
jbe@108 1862 lua_newtable(L); // listener metatable
jbe@108 1863 luaL_setfuncs(L, moonbr_io_listener_metamethods, 0);
jbe@108 1864 lua_newtable(L); // listener methods
jbe@108 1865 luaL_setfuncs(L, moonbr_io_listener_methods, 0);
jbe@108 1866 lua_pushvalue(L, -1);
jbe@146 1867 lua_setfield(L, -4, "listener_pt");
jbe@108 1868 lua_setfield(L, -2, "__index");
jbe@146 1869 lua_pushvalue(L, -1);
jbe@146 1870 lua_setfield(L, -3, "listener_mt");
jbe@108 1871 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_LISTENER_MT_REGKEY);
jbe@108 1872
jbe@205 1873 lua_newtable(L); // child methods
jbe@205 1874 luaL_setfuncs(L, moonbr_io_child_methods, 0);
jbe@205 1875 lua_pushvalue(L, -1);
jbe@205 1876 lua_setfield(L, -3, "child_pt");
jbe@205 1877 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_CHILD_PT_REGKEY);
jbe@205 1878 lua_newtable(L); // child metatable
jbe@205 1879 luaL_setfuncs(L, moonbr_io_child_metamethods, 0);
jbe@205 1880 lua_pushvalue(L, -1);
jbe@205 1881 lua_setfield(L, -3, "child_mt");
jbe@205 1882 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_CHILD_MT_REGKEY);
jbe@205 1883
jbe@243 1884 #ifdef MOONBR_IO_USE_TLS
jbe@243 1885 if(tls_init()) {
jbe@243 1886 return luaL_error(L, "Could not initialize TLS library");
jbe@243 1887 }
jbe@243 1888 lua_newtable(L); // tlsconf metatable
jbe@243 1889 luaL_setfuncs(L, moonbr_io_tlsconf_metamethods, 0);
jbe@243 1890 lua_pushvalue(L, -1);
jbe@243 1891 lua_setfield(L, -3, "tlsconf_mt");
jbe@243 1892 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_TLSCONF_MT_REGKEY);
jbe@243 1893 #endif
jbe@243 1894
jbe@205 1895 moonbr_io_pushhandle(L, 0);
jbe@205 1896 lua_setfield(L, -2, "stdin");
jbe@205 1897 moonbr_io_pushhandle(L, 1);
jbe@205 1898 lua_setfield(L, -2, "stdout");
jbe@205 1899 moonbr_io_pushhandle(L, 2);
jbe@205 1900 lua_setfield(L, -2, "stderr");
jbe@205 1901
jbe@79 1902 luaL_setfuncs(L, moonbr_io_module_funcs, 0);
jbe@79 1903 return 1;
jbe@79 1904
jbe@79 1905 }
jbe@79 1906

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