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@257
|
45 #define moonbr_io_prepare_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@257
|
48 #define moonbr_io_return_prepared_errmsg() \
|
jbe@257
|
49 lua_pushnil(L); \
|
jbe@257
|
50 lua_pushstring(L, errmsg); \
|
jbe@257
|
51 return 2
|
jbe@257
|
52 #define moonbr_io_return_errmsg() \
|
jbe@257
|
53 do { \
|
jbe@257
|
54 moonbr_io_prepare_errmsg(); \
|
jbe@257
|
55 moonbr_io_return_prepared_errmsg(); \
|
jbe@257
|
56 } while (0)
|
jbe@80
|
57
|
jbe@313
|
58 #define MOONBR_IO_MODULE_REGKEY "moonbridge_io_module"
|
jbe@79
|
59 #define MOONBR_IO_HANDLE_MT_REGKEY "moonbridge_io_handle"
|
jbe@79
|
60 #define MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY "moonbridge_io_handle_public"
|
jbe@108
|
61 #define MOONBR_IO_LISTENER_MT_REGKEY "moonbridge_io_listener"
|
jbe@205
|
62 #define MOONBR_IO_CHILD_MT_REGKEY "moonbridge_io_child"
|
jbe@205
|
63 #define MOONBR_IO_CHILD_PT_REGKEY "moonbridge_io_child_pt"
|
jbe@79
|
64
|
jbe@243
|
65 #ifdef MOONBR_IO_USE_TLS
|
jbe@258
|
66
|
jbe@243
|
67 #define MOONBR_IO_TLSCONF_MT_REGKEY "moonbridge_io_tlsconf"
|
jbe@252
|
68
|
jbe@252
|
69 typedef struct {
|
jbe@252
|
70 struct tls_config *config;
|
jbe@252
|
71 int server;
|
jbe@252
|
72 } moonbr_io_tlsconf_t;
|
jbe@258
|
73
|
jbe@258
|
74 #endif /* MOONBR_IO_USE_TLS */
|
jbe@243
|
75
|
jbe@79
|
76 typedef struct {
|
jbe@79
|
77 int fd;
|
jbe@107
|
78 int issock;
|
jbe@107
|
79 sa_family_t addrfam;
|
jbe@94
|
80 int finished;
|
jbe@94
|
81 int closed;
|
jbe@81
|
82 int nonblocking;
|
jbe@95
|
83 int nopush;
|
jbe@85
|
84 int readerr;
|
jbe@105
|
85 int readbufin;
|
jbe@105
|
86 int readbufout;
|
jbe@81
|
87 int writeerr;
|
jbe@83
|
88 size_t writeleft;
|
jbe@132
|
89 size_t flushedleft;
|
jbe@83
|
90 #if LUA_VERSION_NUM >= 503
|
jbe@83
|
91 lua_Integer writeqin;
|
jbe@83
|
92 lua_Integer writeqout;
|
jbe@83
|
93 #else
|
jbe@83
|
94 int writeqin;
|
jbe@83
|
95 int writeqout;
|
jbe@83
|
96 #endif
|
jbe@83
|
97 size_t writeqoff;
|
jbe@103
|
98 int writebufin;
|
jbe@103
|
99 int writebufout;
|
jbe@85
|
100 char readbuf[MOONBR_IO_READBUFLEN];
|
jbe@80
|
101 char writebuf[MOONBR_IO_WRITEBUFLEN];
|
jbe@246
|
102 #ifdef MOONBR_IO_USE_TLS
|
jbe@250
|
103 struct tls *tls;
|
jbe@250
|
104 struct tls *servertls;
|
jbe@250
|
105 int tlshandshake;
|
jbe@261
|
106 int tlsclosing;
|
jbe@246
|
107 #endif
|
jbe@79
|
108 } moonbr_io_handle_t;
|
jbe@79
|
109
|
jbe@108
|
110 typedef struct {
|
jbe@108
|
111 int fd;
|
jbe@118
|
112 sa_family_t addrfam;
|
jbe@108
|
113 int nonblocking;
|
jbe@108
|
114 } moonbr_io_listener_t;
|
jbe@108
|
115
|
jbe@205
|
116 typedef struct {
|
jbe@205
|
117 pid_t pid;
|
jbe@303
|
118 int status;
|
jbe@303
|
119 int status_valid;
|
jbe@205
|
120 } moonbr_io_child_t;
|
jbe@205
|
121
|
jbe@293
|
122 volatile sig_atomic_t moonbr_io_sigterm_flag = 0;
|
jbe@297
|
123 volatile sig_atomic_t moonbr_io_sigchld_flag = 0;
|
jbe@284
|
124
|
jbe@148
|
125 static int moonbr_io_yield(lua_State *L) {
|
jbe@149
|
126 return lua_yield(L, lua_gettop(L));
|
jbe@140
|
127 }
|
jbe@140
|
128
|
jbe@140
|
129 #if LUA_VERSION_NUM >= 503
|
jbe@140
|
130 static int moonbr_io_cont_returnall(lua_State *L, int status, lua_KContext ctx) {
|
jbe@140
|
131 #else
|
jbe@140
|
132 static int moonbr_io_cont_returnall(lua_State *L) {
|
jbe@140
|
133 #endif
|
jbe@140
|
134 return lua_gettop(L);
|
jbe@140
|
135 }
|
jbe@140
|
136
|
jbe@145
|
137 #define moonbr_io_yield_wrapper(yieldfunc, callfunc) \
|
jbe@145
|
138 static int yieldfunc(lua_State *L) { \
|
jbe@145
|
139 int args; \
|
jbe@145
|
140 lua_pushcfunction(L, callfunc); \
|
jbe@145
|
141 lua_insert(L, 1); \
|
jbe@145
|
142 args = lua_gettop(L); \
|
jbe@148
|
143 lua_pushcfunction(L, moonbr_io_yield); \
|
jbe@145
|
144 lua_insert(L, 3); \
|
jbe@145
|
145 lua_callk(L, args, LUA_MULTRET, 0, moonbr_io_cont_returnall); \
|
jbe@145
|
146 return lua_gettop(L); \
|
jbe@145
|
147 }
|
jbe@145
|
148
|
jbe@256
|
149 static int moonbr_io_handle_set_nonblocking(lua_State *L, moonbr_io_handle_t *handle, int nonblocking) {
|
jbe@95
|
150 int flags;
|
jbe@256
|
151 if (handle->nonblocking == nonblocking) return 0;
|
jbe@95
|
152 flags = fcntl(handle->fd, F_GETFL, 0);
|
jbe@256
|
153 if (flags == -1) return -1;
|
jbe@95
|
154 if (nonblocking) flags |= O_NONBLOCK;
|
jbe@95
|
155 else flags &= ~O_NONBLOCK;
|
jbe@256
|
156 if (fcntl(handle->fd, F_SETFL, flags) == -1) return -1;
|
jbe@95
|
157 handle->nonblocking = nonblocking;
|
jbe@256
|
158 return 0;
|
jbe@81
|
159 }
|
jbe@81
|
160
|
jbe@256
|
161 static int moonbr_io_handle_set_linger(lua_State *L, moonbr_io_handle_t *handle, int timeout) {
|
jbe@87
|
162 struct linger lingerval = { 0, };
|
jbe@256
|
163 if (!handle->issock) return 0;
|
jbe@87
|
164 if (timeout >= 0) {
|
jbe@87
|
165 lingerval.l_onoff = 1;
|
jbe@87
|
166 lingerval.l_linger = timeout;
|
jbe@87
|
167 }
|
jbe@256
|
168 if (setsockopt(handle->fd, SOL_SOCKET, SO_LINGER, &lingerval, sizeof(lingerval))) return -1;
|
jbe@256
|
169 return 0;
|
jbe@87
|
170 }
|
jbe@87
|
171
|
jbe@256
|
172 static inline int moonbr_io_handle_set_nopush(lua_State *L, moonbr_io_handle_t *handle, int nopush) {
|
jbe@96
|
173 #if defined(TCP_NOPUSH) || defined(TCP_CORK)
|
jbe@107
|
174 if (
|
jbe@107
|
175 !(handle->addrfam == AF_INET6 || handle->addrfam == AF_INET) ||
|
jbe@107
|
176 handle->nopush == nopush
|
jbe@256
|
177 ) return 0;
|
jbe@96
|
178 #if defined(TCP_NOPUSH)
|
jbe@256
|
179 if (setsockopt(handle->fd, IPPROTO_TCP, TCP_NOPUSH, &nopush, sizeof(nopush))) return -1;
|
jbe@104
|
180 #elif defined(TCP_CORK)
|
jbe@256
|
181 if (setsockopt(handle->fd, IPPROTO_TCP, TCP_CORK, &nopush, sizeof(nopush))) return -1;
|
jbe@251
|
182 #endif
|
jbe@95
|
183 handle->nopush = nopush;
|
jbe@96
|
184 #else
|
jbe@96
|
185 #warning Neither TCP_NOPUSH nor TCP_CORK is available
|
jbe@96
|
186 #endif
|
jbe@256
|
187 return 0;
|
jbe@95
|
188 }
|
jbe@95
|
189
|
jbe@86
|
190 static int moonbr_io_read_impl(lua_State *L, int nonblocking, int drain) {
|
jbe@85
|
191 moonbr_io_handle_t *handle;
|
jbe@85
|
192 lua_Integer maxread;
|
jbe@85
|
193 const char *terminatorstr;
|
jbe@210
|
194 size_t terminatorlen;
|
jbe@210
|
195 char terminator = 0; /* initialize to avoid compiler warning */
|
jbe@85
|
196 luaL_Buffer luabuf;
|
jbe@85
|
197 size_t luabufcnt = 0;
|
jbe@105
|
198 int remaining;
|
jbe@85
|
199 char *terminatorpos;
|
jbe@103
|
200 ssize_t bytesread;
|
jbe@85
|
201 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@153
|
202 maxread = luaL_optinteger(L, 2, -1);
|
jbe@85
|
203 terminatorstr = luaL_optlstring(L, 3, "", &terminatorlen);
|
jbe@85
|
204 if (terminatorlen) {
|
jbe@85
|
205 luaL_argcheck(L, terminatorlen == 1, 3, "single byte expected");
|
jbe@85
|
206 terminator = terminatorstr[0];
|
jbe@85
|
207 }
|
jbe@86
|
208 lua_settop(L, 1); /* return handle on drain, terminator string may be garbage collected */
|
jbe@94
|
209 if (handle->closed) luaL_error(L, "Attempt to read from a closed I/O handle");
|
jbe@85
|
210 if (handle->readerr) {
|
jbe@85
|
211 lua_pushnil(L);
|
jbe@85
|
212 lua_pushliteral(L, "Previous read error");
|
jbe@85
|
213 return 2;
|
jbe@85
|
214 }
|
jbe@143
|
215 if (handle->fd < 0) {
|
jbe@143
|
216 /* fake EOF to simulate shutdown */
|
jbe@143
|
217 if (!drain) lua_pushliteral(L, "");
|
jbe@143
|
218 else lua_pushinteger(L, 0);
|
jbe@143
|
219 lua_pushliteral(L, "eof");
|
jbe@143
|
220 return 2;
|
jbe@143
|
221 }
|
jbe@105
|
222 handle->readerr = 1;
|
jbe@257
|
223 if (moonbr_io_handle_set_nonblocking(L, handle, nonblocking)) moonbr_io_return_errmsg();
|
jbe@86
|
224 if (!drain) luaL_buffinit(L, &luabuf);
|
jbe@85
|
225 while (1) {
|
jbe@105
|
226 remaining = -1;
|
jbe@142
|
227 terminatorpos = NULL;
|
jbe@105
|
228 if (
|
jbe@153
|
229 maxread >= 0 &&
|
jbe@143
|
230 handle->readbufin - handle->readbufout >= (size_t)maxread - luabufcnt
|
jbe@105
|
231 ) {
|
jbe@142
|
232 remaining = (size_t)maxread - luabufcnt;
|
jbe@193
|
233 if (terminatorlen) {
|
jbe@193
|
234 terminatorpos = memchr(
|
jbe@193
|
235 handle->readbuf + handle->readbufout,
|
jbe@193
|
236 terminator,
|
jbe@193
|
237 remaining
|
jbe@193
|
238 );
|
jbe@193
|
239 }
|
jbe@85
|
240 } else if (terminatorlen) {
|
jbe@105
|
241 terminatorpos = memchr(
|
jbe@105
|
242 handle->readbuf + handle->readbufout,
|
jbe@105
|
243 terminator,
|
jbe@105
|
244 handle->readbufin - handle->readbufout
|
jbe@105
|
245 );
|
jbe@85
|
246 }
|
jbe@142
|
247 if (terminatorpos) remaining = 1 + (
|
jbe@142
|
248 terminatorpos - (handle->readbuf + handle->readbufout)
|
jbe@142
|
249 );
|
jbe@105
|
250 if (remaining >= 0) {
|
jbe@86
|
251 if (!drain) {
|
jbe@105
|
252 luaL_addlstring(
|
jbe@105
|
253 &luabuf,
|
jbe@105
|
254 handle->readbuf + handle->readbufout,
|
jbe@105
|
255 remaining
|
jbe@105
|
256 );
|
jbe@86
|
257 luaL_pushresult(&luabuf);
|
jbe@90
|
258 } else {
|
jbe@105
|
259 lua_pushinteger(L, luabufcnt + remaining);
|
jbe@86
|
260 }
|
jbe@143
|
261 if (terminatorpos) lua_pushliteral(L, "term");
|
jbe@143
|
262 else lua_pushliteral(L, "maxlen");
|
jbe@105
|
263 handle->readbufout += remaining;
|
jbe@105
|
264 if (handle->readbufout == handle->readbufin) {
|
jbe@105
|
265 handle->readbufin = 0;
|
jbe@143
|
266 handle->readbufout = 0;
|
jbe@105
|
267 }
|
jbe@104
|
268 handle->readerr = 0;
|
jbe@143
|
269 return 2;
|
jbe@85
|
270 }
|
jbe@105
|
271 if (!drain) luaL_addlstring(
|
jbe@105
|
272 &luabuf,
|
jbe@105
|
273 handle->readbuf + handle->readbufout,
|
jbe@105
|
274 handle->readbufin - handle->readbufout
|
jbe@105
|
275 );
|
jbe@105
|
276 luabufcnt += handle->readbufin - handle->readbufout;
|
jbe@143
|
277 handle->readbufout = 0;
|
jbe@249
|
278 #ifdef MOONBR_IO_USE_TLS
|
jbe@249
|
279 if (handle->tls) {
|
jbe@250
|
280 do {
|
jbe@250
|
281 if (!handle->tlshandshake) {
|
jbe@250
|
282 do bytesread = tls_handshake(handle->tls);
|
jbe@250
|
283 while (!nonblocking && (bytesread == TLS_WANT_POLLIN || bytesread == TLS_WANT_POLLOUT));
|
jbe@250
|
284 if (bytesread == TLS_WANT_POLLIN || bytesread == TLS_WANT_POLLOUT) {
|
jbe@250
|
285 handle->tlshandshake = bytesread;
|
jbe@250
|
286 errno = EAGAIN;
|
jbe@250
|
287 break;
|
jbe@250
|
288 }
|
jbe@250
|
289 if (bytesread < 0) {
|
jbe@250
|
290 lua_pushnil(L);
|
jbe@250
|
291 lua_pushstring(L, tls_error(handle->tls));
|
jbe@250
|
292 return 2;
|
jbe@250
|
293 }
|
jbe@250
|
294 handle->tlshandshake = 1;
|
jbe@250
|
295 }
|
jbe@250
|
296 do bytesread = tls_read(handle->tls, handle->readbuf, MOONBR_IO_READBUFLEN);
|
jbe@250
|
297 while (!nonblocking && (bytesread == TLS_WANT_POLLIN || bytesread == TLS_WANT_POLLOUT));
|
jbe@250
|
298 if (bytesread == TLS_WANT_POLLIN || bytesread == TLS_WANT_POLLOUT) {
|
jbe@250
|
299 errno = EAGAIN;
|
jbe@250
|
300 break;
|
jbe@250
|
301 }
|
jbe@250
|
302 if (bytesread < 0) {
|
jbe@250
|
303 lua_pushnil(L);
|
jbe@250
|
304 lua_pushstring(L, tls_error(handle->tls));
|
jbe@250
|
305 return 2;
|
jbe@250
|
306 }
|
jbe@250
|
307 } while (0);
|
jbe@249
|
308 }
|
jbe@249
|
309 else
|
jbe@249
|
310 #endif
|
jbe@249
|
311 do bytesread = read(handle->fd, handle->readbuf, MOONBR_IO_READBUFLEN);
|
jbe@249
|
312 while (bytesread < 0 && (errno == EINTR));
|
jbe@105
|
313 if (
|
jbe@105
|
314 bytesread == 0 || (
|
jbe@105
|
315 nonblocking &&
|
jbe@105
|
316 bytesread < 0 && (errno == EAGAIN || errno == EWOULDBLOCK)
|
jbe@105
|
317 )
|
jbe@105
|
318 ) {
|
jbe@105
|
319 handle->readbufin = 0;
|
jbe@143
|
320 if (!drain) luaL_pushresult(&luabuf);
|
jbe@143
|
321 else lua_pushinteger(L, luabufcnt);
|
jbe@143
|
322 if (bytesread == 0) lua_pushliteral(L, "eof");
|
jbe@143
|
323 else lua_pushliteral(L, "block");
|
jbe@105
|
324 handle->readerr = 0;
|
jbe@143
|
325 return 2;
|
jbe@105
|
326 }
|
jbe@257
|
327 if (bytesread < 0) moonbr_io_return_errmsg();
|
jbe@105
|
328 handle->readbufin = bytesread;
|
jbe@86
|
329 }
|
jbe@85
|
330 }
|
jbe@85
|
331
|
jbe@85
|
332 static int moonbr_io_read(lua_State *L) {
|
jbe@86
|
333 return moonbr_io_read_impl(L, 0, 0);
|
jbe@85
|
334 }
|
jbe@85
|
335
|
jbe@85
|
336 static int moonbr_io_read_nb(lua_State *L) {
|
jbe@86
|
337 return moonbr_io_read_impl(L, 1, 0);
|
jbe@86
|
338 }
|
jbe@86
|
339
|
jbe@86
|
340 static int moonbr_io_drain(lua_State *L) {
|
jbe@86
|
341 return moonbr_io_read_impl(L, 0, 1);
|
jbe@86
|
342 }
|
jbe@86
|
343
|
jbe@86
|
344 static int moonbr_io_drain_nb(lua_State *L) {
|
jbe@86
|
345 return moonbr_io_read_impl(L, 1, 1);
|
jbe@85
|
346 }
|
jbe@85
|
347
|
jbe@140
|
348 #if LUA_VERSION_NUM >= 503
|
jbe@140
|
349 static int moonbr_io_read_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@140
|
350 #else
|
jbe@140
|
351 static int moonbr_io_read_cont(lua_State *L) {
|
jbe@140
|
352 #endif
|
jbe@143
|
353 lua_Integer remaining;
|
jbe@143
|
354 size_t len;
|
jbe@140
|
355 #if !(LUA_VERSION_NUM >= 503)
|
jbe@140
|
356 int ctx = 0;
|
jbe@140
|
357 lua_getctx(L, &ctx);
|
jbe@140
|
358 #endif
|
jbe@140
|
359 remaining = lua_tointeger(L, 3);
|
jbe@140
|
360 while (1) {
|
jbe@140
|
361 lua_pushcfunction(L, moonbr_io_read_nb);
|
jbe@140
|
362 lua_pushvalue(L, 1);
|
jbe@140
|
363 lua_pushvalue(L, 3);
|
jbe@140
|
364 lua_pushvalue(L, 4);
|
jbe@140
|
365 lua_call(L, 3, 2);
|
jbe@143
|
366 if (lua_isnil(L, -2)) return 2;
|
jbe@143
|
367 lua_insert(L, -2);
|
jbe@143
|
368 len = lua_rawlen(L, -1);
|
jbe@143
|
369 if (ctx == 0) {
|
jbe@143
|
370 lua_replace(L, 5);
|
jbe@143
|
371 ctx = 1;
|
jbe@143
|
372 } else if (ctx == 1) {
|
jbe@143
|
373 lua_pushvalue(L, 5);
|
jbe@143
|
374 lua_newtable(L);
|
jbe@143
|
375 lua_replace(L, 5);
|
jbe@304
|
376 lua_rawseti(L, 5, 1);
|
jbe@143
|
377 lua_rawseti(L, 5, 2);
|
jbe@143
|
378 ctx = 2;
|
jbe@140
|
379 } else {
|
jbe@143
|
380 lua_rawseti(L, 5, lua_rawlen(L, 5) + 1);
|
jbe@140
|
381 }
|
jbe@144
|
382 if (strcmp(lua_tostring(L, -1), "block") != 0) break;
|
jbe@144
|
383 lua_pop(L, 1);
|
jbe@144
|
384 if (remaining >= 0 && len) {
|
jbe@143
|
385 remaining -= len;
|
jbe@143
|
386 lua_pushinteger(L, remaining);
|
jbe@143
|
387 lua_replace(L, 3);
|
jbe@143
|
388 }
|
jbe@140
|
389 lua_pushvalue(L, 2);
|
jbe@313
|
390 lua_pushvalue(L, 1);
|
jbe@313
|
391 lua_pushliteral(L, "r");
|
jbe@313
|
392 lua_getfield(L, LUA_REGISTRYINDEX, MOONBR_IO_MODULE_REGKEY);
|
jbe@313
|
393 lua_callk(L, 3, 0, ctx, moonbr_io_read_cont);
|
jbe@140
|
394 }
|
jbe@305
|
395 if (ctx != 1) {
|
jbe@140
|
396 luaL_Buffer buf;
|
jbe@140
|
397 lua_Integer i, chunkcount;
|
jbe@140
|
398 chunkcount = lua_rawlen(L, 5);
|
jbe@140
|
399 luaL_buffinit(L, &buf);
|
jbe@140
|
400 for (i=1; i<=chunkcount && i>0; i++) {
|
jbe@140
|
401 lua_rawgeti(L, 5, i);
|
jbe@140
|
402 luaL_addvalue(&buf);
|
jbe@140
|
403 }
|
jbe@140
|
404 luaL_pushresult(&buf);
|
jbe@305
|
405 lua_pushvalue(L, -2);
|
jbe@140
|
406 }
|
jbe@143
|
407 return 2;
|
jbe@140
|
408 }
|
jbe@140
|
409
|
jbe@140
|
410 static int moonbr_io_read_call(lua_State *L) {
|
jbe@140
|
411 lua_settop(L, 4);
|
jbe@140
|
412 lua_pushnil(L);
|
jbe@140
|
413 #if LUA_VERSION_NUM >= 503
|
jbe@140
|
414 return moonbr_io_read_cont(L, 0, 0);
|
jbe@140
|
415 #else
|
jbe@140
|
416 return moonbr_io_read_cont(L);
|
jbe@140
|
417 #endif
|
jbe@140
|
418 }
|
jbe@140
|
419
|
jbe@145
|
420 moonbr_io_yield_wrapper(moonbr_io_read_yield, moonbr_io_read_call);
|
jbe@140
|
421
|
jbe@144
|
422 #if LUA_VERSION_NUM >= 503
|
jbe@144
|
423 static int moonbr_io_drain_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@144
|
424 #else
|
jbe@144
|
425 static int moonbr_io_drain_cont(lua_State *L) {
|
jbe@144
|
426 #endif
|
jbe@144
|
427 lua_Integer remaining, len;
|
jbe@144
|
428 size_t totallen = 0;
|
jbe@144
|
429 #if !(LUA_VERSION_NUM >= 503)
|
jbe@144
|
430 int ctx = 0;
|
jbe@144
|
431 lua_getctx(L, &ctx);
|
jbe@144
|
432 #endif
|
jbe@144
|
433 remaining = lua_tointeger(L, 3);
|
jbe@144
|
434 while (1) {
|
jbe@144
|
435 lua_pushcfunction(L, moonbr_io_drain_nb);
|
jbe@144
|
436 lua_pushvalue(L, 1);
|
jbe@144
|
437 lua_pushvalue(L, 3);
|
jbe@144
|
438 lua_pushvalue(L, 4);
|
jbe@144
|
439 lua_call(L, 3, 2);
|
jbe@144
|
440 if (lua_isnil(L, -2)) return 2;
|
jbe@144
|
441 lua_insert(L, -2);
|
jbe@144
|
442 len = lua_tointeger(L, -1);
|
jbe@144
|
443 lua_pop(L, 1);
|
jbe@144
|
444 totallen += len;
|
jbe@144
|
445 if (strcmp(lua_tostring(L, -1), "block") != 0) break;
|
jbe@144
|
446 lua_pop(L, 1);
|
jbe@144
|
447 if (remaining >= 0 && len) {
|
jbe@144
|
448 remaining -= len;
|
jbe@144
|
449 lua_pushinteger(L, remaining);
|
jbe@144
|
450 lua_replace(L, 3);
|
jbe@144
|
451 }
|
jbe@144
|
452 lua_pushvalue(L, 2);
|
jbe@313
|
453 lua_pushvalue(L, 1);
|
jbe@313
|
454 lua_pushliteral(L, "r");
|
jbe@313
|
455 lua_getfield(L, LUA_REGISTRYINDEX, MOONBR_IO_MODULE_REGKEY);
|
jbe@313
|
456 lua_callk(L, 3, 0, ctx, moonbr_io_drain_cont);
|
jbe@144
|
457 }
|
jbe@144
|
458 lua_pushinteger(L, totallen);
|
jbe@144
|
459 lua_pushvalue(L, -2);
|
jbe@144
|
460 return 2;
|
jbe@144
|
461 }
|
jbe@144
|
462
|
jbe@144
|
463 static int moonbr_io_drain_call(lua_State *L) {
|
jbe@144
|
464 #if LUA_VERSION_NUM >= 503
|
jbe@144
|
465 return moonbr_io_drain_cont(L, 0, 0);
|
jbe@144
|
466 #else
|
jbe@144
|
467 return moonbr_io_drain_cont(L);
|
jbe@144
|
468 #endif
|
jbe@144
|
469 }
|
jbe@144
|
470
|
jbe@145
|
471 moonbr_io_yield_wrapper(moonbr_io_drain_yield, moonbr_io_drain_call);
|
jbe@144
|
472
|
jbe@250
|
473 #ifdef MOONBR_IO_USE_TLS
|
jbe@258
|
474
|
jbe@250
|
475 #define moonbr_io_write_tls(buf, buflen) \
|
jbe@250
|
476 if (handle->tls) { \
|
jbe@250
|
477 do { \
|
jbe@250
|
478 if (!handle->tlshandshake) { \
|
jbe@250
|
479 do written = tls_handshake(handle->tls); \
|
jbe@250
|
480 while (!nonblocking && (written == TLS_WANT_POLLIN || written == TLS_WANT_POLLOUT)); \
|
jbe@250
|
481 if (written == TLS_WANT_POLLIN || written == TLS_WANT_POLLOUT) { \
|
jbe@250
|
482 handle->tlshandshake = written; \
|
jbe@250
|
483 errno = EAGAIN; \
|
jbe@250
|
484 break; \
|
jbe@250
|
485 } \
|
jbe@250
|
486 if (written < 0) { \
|
jbe@250
|
487 lua_pushnil(L); \
|
jbe@250
|
488 lua_pushstring(L, tls_error(handle->tls)); \
|
jbe@250
|
489 return 2; \
|
jbe@250
|
490 } \
|
jbe@250
|
491 handle->tlshandshake = 1; \
|
jbe@250
|
492 } \
|
jbe@250
|
493 do written = tls_write(handle->tls, (buf), (buflen)); \
|
jbe@250
|
494 while (!nonblocking && (written == TLS_WANT_POLLIN || written == TLS_WANT_POLLOUT)); \
|
jbe@250
|
495 if (written == TLS_WANT_POLLIN || written == TLS_WANT_POLLOUT) { \
|
jbe@250
|
496 errno = EAGAIN; \
|
jbe@250
|
497 break; \
|
jbe@250
|
498 } \
|
jbe@250
|
499 if (written < 0) { \
|
jbe@250
|
500 lua_pushnil(L); \
|
jbe@250
|
501 lua_pushstring(L, tls_error(handle->tls)); \
|
jbe@250
|
502 return 2; \
|
jbe@250
|
503 } \
|
jbe@250
|
504 } while (0); \
|
jbe@250
|
505 } \
|
jbe@250
|
506 else
|
jbe@258
|
507
|
jbe@258
|
508 #endif /* MOONBR_IO_USE_TLS */
|
jbe@250
|
509
|
jbe@81
|
510 static int moonbr_io_write_impl(lua_State *L, int nonblocking, int flush) {
|
jbe@80
|
511 moonbr_io_handle_t *handle;
|
jbe@80
|
512 int i, top;
|
jbe@80
|
513 const char *str;
|
jbe@92
|
514 size_t strlen;
|
jbe@103
|
515 ssize_t written;
|
jbe@80
|
516 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
517 if (handle->closed) luaL_error(L, "Attempt to write to a closed I/O handle");
|
jbe@94
|
518 if (handle->finished) luaL_error(L, "Attempt to write to a finished I/O handle");
|
jbe@81
|
519 if (handle->writeerr) {
|
jbe@80
|
520 lua_pushnil(L);
|
jbe@80
|
521 lua_pushliteral(L, "Previous write error");
|
jbe@80
|
522 return 2;
|
jbe@80
|
523 }
|
jbe@103
|
524 handle->writeerr = 1;
|
jbe@257
|
525 if (moonbr_io_handle_set_nonblocking(L, handle, nonblocking)) moonbr_io_return_errmsg();
|
jbe@84
|
526 top = lua_gettop(L);
|
jbe@81
|
527 lua_getuservalue(L, 1);
|
jbe@103
|
528 lua_getfield(L, -1, "writequeue");
|
jbe@84
|
529 for (i=2; i<=top; i++) {
|
jbe@84
|
530 luaL_checklstring(L, i, &strlen);
|
jbe@84
|
531 lua_pushvalue(L, i);
|
jbe@84
|
532 lua_rawseti(L, -2, handle->writeqin++);
|
jbe@84
|
533 handle->writeleft += strlen;
|
jbe@81
|
534 }
|
jbe@132
|
535 if (flush) handle->flushedleft = handle->writeleft;
|
jbe@83
|
536 while (handle->writeqout != handle->writeqin) {
|
jbe@83
|
537 lua_rawgeti(L, -1, handle->writeqout);
|
jbe@81
|
538 str = lua_tolstring(L, -1, &strlen);
|
jbe@92
|
539 while (handle->writeqoff < strlen) {
|
jbe@103
|
540 if (
|
jbe@132
|
541 strlen - handle->writeqoff <
|
jbe@103
|
542 MOONBR_IO_WRITEBUFLEN - handle->writebufin
|
jbe@103
|
543 ) {
|
jbe@103
|
544 memcpy(
|
jbe@103
|
545 handle->writebuf + handle->writebufin,
|
jbe@103
|
546 str + handle->writeqoff,
|
jbe@103
|
547 strlen - handle->writeqoff
|
jbe@103
|
548 );
|
jbe@103
|
549 handle->writebufin += strlen - handle->writeqoff;
|
jbe@80
|
550 break;
|
jbe@80
|
551 } else {
|
jbe@103
|
552 memcpy(
|
jbe@103
|
553 handle->writebuf + handle->writebufin,
|
jbe@103
|
554 str + handle->writeqoff,
|
jbe@103
|
555 MOONBR_IO_WRITEBUFLEN - handle->writebufin
|
jbe@103
|
556 );
|
jbe@103
|
557 handle->writeqoff += MOONBR_IO_WRITEBUFLEN - handle->writebufin;
|
jbe@228
|
558 handle->writebufin = MOONBR_IO_WRITEBUFLEN;
|
jbe@103
|
559 while (handle->writebufout < MOONBR_IO_WRITEBUFLEN) {
|
jbe@257
|
560 if (moonbr_io_handle_set_nopush(L, handle, 1)) moonbr_io_return_errmsg();
|
jbe@249
|
561 #ifdef MOONBR_IO_USE_TLS
|
jbe@250
|
562 moonbr_io_write_tls(
|
jbe@250
|
563 handle->writebuf + handle->writebufout,
|
jbe@250
|
564 MOONBR_IO_WRITEBUFLEN - handle->writebufout
|
jbe@250
|
565 )
|
jbe@249
|
566 #endif
|
jbe@103
|
567 written = write(
|
jbe@103
|
568 handle->fd,
|
jbe@103
|
569 handle->writebuf + handle->writebufout,
|
jbe@103
|
570 MOONBR_IO_WRITEBUFLEN - handle->writebufout
|
jbe@103
|
571 );
|
jbe@103
|
572 if (written < 0) {
|
jbe@81
|
573 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@81
|
574 goto moonbr_io_write_impl_block;
|
jbe@257
|
575 } else if (errno != EINTR) moonbr_io_return_errmsg();
|
jbe@103
|
576 } else {
|
jbe@103
|
577 handle->writebufout += written;
|
jbe@103
|
578 handle->writeleft -= written;
|
jbe@133
|
579 if (handle->flushedleft) {
|
jbe@133
|
580 if (written >= handle->flushedleft) {
|
jbe@133
|
581 handle->flushedleft = 0;
|
jbe@257
|
582 if (moonbr_io_handle_set_nopush(L, handle, 0)) moonbr_io_return_errmsg();
|
jbe@133
|
583 } else {
|
jbe@133
|
584 handle->flushedleft -= written;
|
jbe@133
|
585 }
|
jbe@133
|
586 }
|
jbe@80
|
587 }
|
jbe@80
|
588 }
|
jbe@103
|
589 handle->writebufin = 0;
|
jbe@103
|
590 handle->writebufout = 0;
|
jbe@80
|
591 }
|
jbe@80
|
592 }
|
jbe@81
|
593 handle->writeqoff = 0;
|
jbe@81
|
594 lua_pop(L, 1);
|
jbe@81
|
595 lua_pushnil(L);
|
jbe@83
|
596 lua_rawseti(L, -2, handle->writeqout++);
|
jbe@80
|
597 }
|
jbe@132
|
598 while (handle->flushedleft) {
|
jbe@257
|
599 if (moonbr_io_handle_set_nopush(L, handle, 1)) moonbr_io_return_errmsg();
|
jbe@249
|
600 #ifdef MOONBR_IO_USE_TLS
|
jbe@250
|
601 moonbr_io_write_tls(
|
jbe@250
|
602 handle->writebuf + handle->writebufout,
|
jbe@250
|
603 handle->writebufin - handle->writebufout
|
jbe@250
|
604 )
|
jbe@249
|
605 #endif
|
jbe@132
|
606 written = write(
|
jbe@132
|
607 handle->fd,
|
jbe@132
|
608 handle->writebuf + handle->writebufout,
|
jbe@132
|
609 handle->writebufin - handle->writebufout
|
jbe@132
|
610 );
|
jbe@132
|
611 if (written < 0) {
|
jbe@132
|
612 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@132
|
613 goto moonbr_io_write_impl_block;
|
jbe@257
|
614 } else if (errno != EINTR) moonbr_io_return_errmsg();
|
jbe@132
|
615 } else {
|
jbe@132
|
616 handle->writebufout += written;
|
jbe@132
|
617 handle->writeleft -= written;
|
jbe@133
|
618 if (handle->flushedleft) {
|
jbe@133
|
619 if (written >= handle->flushedleft) {
|
jbe@133
|
620 handle->flushedleft = 0;
|
jbe@257
|
621 if (moonbr_io_handle_set_nopush(L, handle, 0)) moonbr_io_return_errmsg();
|
jbe@133
|
622 } else {
|
jbe@133
|
623 handle->flushedleft -= written;
|
jbe@133
|
624 }
|
jbe@133
|
625 }
|
jbe@81
|
626 }
|
jbe@132
|
627 }
|
jbe@132
|
628 if (handle->writebufout == handle->writebufin) {
|
jbe@103
|
629 handle->writebufin = 0;
|
jbe@103
|
630 handle->writebufout = 0;
|
jbe@81
|
631 }
|
jbe@103
|
632 if (nonblocking) lua_pushinteger(L, 0);
|
jbe@103
|
633 else lua_pushvalue(L, 1);
|
jbe@103
|
634 handle->writeerr = 0;
|
jbe@80
|
635 return 1;
|
jbe@81
|
636 moonbr_io_write_impl_block:
|
jbe@91
|
637 lua_pushinteger(L, handle->writeleft);
|
jbe@103
|
638 handle->writeerr = 0;
|
jbe@81
|
639 return 1;
|
jbe@81
|
640 }
|
jbe@81
|
641
|
jbe@81
|
642 static int moonbr_io_write(lua_State *L) {
|
jbe@81
|
643 return moonbr_io_write_impl(L, 0, 0);
|
jbe@81
|
644 }
|
jbe@81
|
645
|
jbe@81
|
646 static int moonbr_io_write_nb(lua_State *L) {
|
jbe@81
|
647 return moonbr_io_write_impl(L, 1, 0);
|
jbe@80
|
648 }
|
jbe@80
|
649
|
jbe@80
|
650 static int moonbr_io_flush(lua_State *L) {
|
jbe@81
|
651 return moonbr_io_write_impl(L, 0, 1);
|
jbe@81
|
652 }
|
jbe@81
|
653
|
jbe@81
|
654 static int moonbr_io_flush_nb(lua_State *L) {
|
jbe@81
|
655 return moonbr_io_write_impl(L, 1, 1);
|
jbe@80
|
656 }
|
jbe@80
|
657
|
jbe@145
|
658 #if LUA_VERSION_NUM >= 503
|
jbe@145
|
659 static int moonbr_io_write_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@145
|
660 #else
|
jbe@145
|
661 static int moonbr_io_write_cont(lua_State *L) {
|
jbe@145
|
662 #endif
|
jbe@145
|
663 while (1) {
|
jbe@145
|
664 lua_pushcfunction(L, moonbr_io_write_nb);
|
jbe@145
|
665 lua_pushvalue(L, 1);
|
jbe@145
|
666 lua_call(L, 1, 2);
|
jbe@145
|
667 if (lua_isnil(L, -2)) return 2;
|
jbe@145
|
668 if (!lua_tointeger(L, -2)) {
|
jbe@145
|
669 lua_pushvalue(L, 1);
|
jbe@145
|
670 return 1;
|
jbe@145
|
671 }
|
jbe@145
|
672 lua_pop(L, 2);
|
jbe@145
|
673 lua_pushvalue(L, 2);
|
jbe@313
|
674 lua_pushvalue(L, 1);
|
jbe@313
|
675 lua_pushliteral(L, "w");
|
jbe@313
|
676 lua_getfield(L, LUA_REGISTRYINDEX, MOONBR_IO_MODULE_REGKEY);
|
jbe@152
|
677 lua_callk(L, 0, 0, 0, moonbr_io_write_cont);
|
jbe@145
|
678 }
|
jbe@145
|
679 }
|
jbe@145
|
680
|
jbe@145
|
681 static int moonbr_io_write_call(lua_State *L) {
|
jbe@145
|
682 lua_pushcfunction(L, moonbr_io_write_nb);
|
jbe@145
|
683 lua_insert(L, 3);
|
jbe@145
|
684 lua_pushvalue(L, 1);
|
jbe@145
|
685 lua_insert(L, 4);
|
jbe@145
|
686 lua_call(L, lua_gettop(L) - 3, 2);
|
jbe@145
|
687 if (lua_isnil(L, -2)) return 2;
|
jbe@145
|
688 if (!lua_tointeger(L, -2)) {
|
jbe@145
|
689 lua_pushvalue(L, 1);
|
jbe@145
|
690 return 1;
|
jbe@145
|
691 }
|
jbe@145
|
692 #if LUA_VERSION_NUM >= 503
|
jbe@145
|
693 return moonbr_io_write_cont(L, 0, 0);
|
jbe@145
|
694 #else
|
jbe@145
|
695 return moonbr_io_write_cont(L);
|
jbe@145
|
696 #endif
|
jbe@145
|
697 }
|
jbe@145
|
698
|
jbe@145
|
699 moonbr_io_yield_wrapper(moonbr_io_write_yield, moonbr_io_write_call);
|
jbe@145
|
700
|
jbe@145
|
701 static int moonbr_io_flush_call(lua_State *L) {
|
jbe@145
|
702 lua_pushcfunction(L, moonbr_io_flush_nb);
|
jbe@145
|
703 lua_insert(L, 3);
|
jbe@145
|
704 lua_pushvalue(L, 1);
|
jbe@145
|
705 lua_insert(L, 4);
|
jbe@145
|
706 lua_call(L, lua_gettop(L) - 3, 2);
|
jbe@145
|
707 if (lua_isnil(L, -2)) return 2;
|
jbe@145
|
708 if (!lua_tointeger(L, -2)) {
|
jbe@145
|
709 lua_pushvalue(L, 1);
|
jbe@145
|
710 return 1;
|
jbe@145
|
711 }
|
jbe@145
|
712 #if LUA_VERSION_NUM >= 503
|
jbe@145
|
713 return moonbr_io_write_cont(L, 0, 0);
|
jbe@145
|
714 #else
|
jbe@145
|
715 return moonbr_io_write_cont(L);
|
jbe@145
|
716 #endif
|
jbe@145
|
717 }
|
jbe@145
|
718
|
jbe@145
|
719 moonbr_io_yield_wrapper(moonbr_io_flush_yield, moonbr_io_flush_call);
|
jbe@145
|
720
|
jbe@88
|
721 static int moonbr_io_finish(lua_State *L) {
|
jbe@88
|
722 moonbr_io_handle_t *handle;
|
jbe@88
|
723 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
724 if (handle->closed) luaL_error(L, "Attempt to finish a closed I/O handle");
|
jbe@94
|
725 if (handle->finished) luaL_error(L, "Attempt to finish a finished I/O handle");
|
jbe@94
|
726 if (handle->writeleft) {
|
jbe@94
|
727 lua_pushcfunction(L, moonbr_io_flush);
|
jbe@94
|
728 lua_pushvalue(L, 1);
|
jbe@116
|
729 if (lua_pcall(L, 1, 2, 0)) {
|
jbe@116
|
730 handle->finished = 1;
|
jbe@116
|
731 lua_error(L);
|
jbe@116
|
732 }
|
jbe@94
|
733 if (!lua_toboolean(L, -2)) {
|
jbe@94
|
734 handle->finished = 1;
|
jbe@94
|
735 return 2;
|
jbe@88
|
736 }
|
jbe@94
|
737 }
|
jbe@94
|
738 handle->finished = 1;
|
jbe@260
|
739 #ifdef MOONBR_IO_USE_TLS
|
jbe@260
|
740 if ((handle->addrfam == AF_INET6 || handle->addrfam == AF_INET) && !handle->tls) {
|
jbe@260
|
741 #else
|
jbe@107
|
742 if (handle->addrfam == AF_INET6 || handle->addrfam == AF_INET) {
|
jbe@260
|
743 #endif
|
jbe@257
|
744 if (shutdown(handle->fd, SHUT_WR)) moonbr_io_return_errmsg();
|
jbe@94
|
745 } else {
|
jbe@251
|
746 #ifdef MOONBR_IO_USE_TLS
|
jbe@260
|
747 if (handle->tls) {
|
jbe@260
|
748 int status;
|
jbe@260
|
749 if (moonbr_io_handle_set_nonblocking(L, handle, 1)) moonbr_io_return_errmsg();
|
jbe@260
|
750 do status = tls_close(handle->tls);
|
jbe@260
|
751 while (status == TLS_WANT_POLLIN || status == TLS_WANT_POLLOUT);
|
jbe@260
|
752 if (status) {
|
jbe@260
|
753 close(handle->fd);
|
jbe@260
|
754 handle->fd = -1;
|
jbe@260
|
755 lua_pushnil(L);
|
jbe@260
|
756 lua_pushstring(L, tls_error(handle->tls));
|
jbe@260
|
757 return 2;
|
jbe@260
|
758 }
|
jbe@260
|
759 }
|
jbe@251
|
760 #endif
|
jbe@94
|
761 if (close(handle->fd)) {
|
jbe@94
|
762 handle->fd = -1;
|
jbe@257
|
763 moonbr_io_return_errmsg();
|
jbe@94
|
764 }
|
jbe@94
|
765 handle->fd = -1; /* fake EOF on read */
|
jbe@88
|
766 }
|
jbe@88
|
767 lua_pushboolean(L, 1);
|
jbe@88
|
768 return 1;
|
jbe@88
|
769 }
|
jbe@88
|
770
|
jbe@261
|
771 static int moonbr_io_close_impl(lua_State *L, int nonblocking, int reset) {
|
jbe@83
|
772 moonbr_io_handle_t *handle;
|
jbe@83
|
773 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
774 if (handle->closed) luaL_error(L, "Attempt to close a closed I/O handle");
|
jbe@259
|
775 if (!reset && handle->fd >= 0) {
|
jbe@87
|
776 if (handle->writeleft) {
|
jbe@261
|
777 lua_pushcfunction(L, nonblocking ? moonbr_io_flush_nb : moonbr_io_flush);
|
jbe@87
|
778 lua_pushvalue(L, 1);
|
jbe@116
|
779 if (lua_pcall(L, 1, 2, 0)) {
|
jbe@129
|
780 handle->closed = 1;
|
jbe@116
|
781 close(handle->fd);
|
jbe@116
|
782 handle->fd = -1;
|
jbe@116
|
783 lua_error(L);
|
jbe@116
|
784 }
|
jbe@261
|
785 if (!nonblocking) handle->closed = 1; /* TODO: handle nonblocking case */
|
jbe@87
|
786 if (!lua_toboolean(L, -2)) {
|
jbe@87
|
787 close(handle->fd);
|
jbe@87
|
788 handle->fd = -1;
|
jbe@87
|
789 return 2;
|
jbe@87
|
790 }
|
jbe@261
|
791 #if LUA_VERSION_NUM >= 503
|
jbe@261
|
792 if (nonblocking && lua_tointeger(L, -2)) {
|
jbe@261
|
793 #else
|
jbe@261
|
794 if (nonblocking && lua_tonumber(L, -2)) {
|
jbe@261
|
795 #endif
|
jbe@261
|
796 lua_pushliteral(L, "flush");
|
jbe@261
|
797 lua_pushvalue(L, -3);
|
jbe@261
|
798 return 2;
|
jbe@261
|
799 }
|
jbe@129
|
800 } else {
|
jbe@129
|
801 handle->closed = 1;
|
jbe@83
|
802 }
|
jbe@260
|
803 #ifdef MOONBR_IO_USE_TLS
|
jbe@260
|
804 if (handle->tls) {
|
jbe@260
|
805 int status;
|
jbe@261
|
806 if (moonbr_io_handle_set_nonblocking(L, handle, nonblocking)) moonbr_io_return_errmsg();
|
jbe@260
|
807 do status = tls_close(handle->tls);
|
jbe@261
|
808 while (!nonblocking && (status == TLS_WANT_POLLIN || status == TLS_WANT_POLLOUT));
|
jbe@261
|
809 if (status == TLS_WANT_POLLIN || status == TLS_WANT_POLLOUT) {
|
jbe@261
|
810 handle->tlsclosing = status; /* TODO: handle polling */
|
jbe@261
|
811 lua_pushliteral(L, "close");
|
jbe@261
|
812 return 1;
|
jbe@261
|
813 }
|
jbe@260
|
814 if (status) {
|
jbe@260
|
815 close(handle->fd);
|
jbe@260
|
816 handle->fd = -1;
|
jbe@260
|
817 lua_pushnil(L);
|
jbe@260
|
818 lua_pushstring(L, tls_error(handle->tls));
|
jbe@260
|
819 return 2;
|
jbe@260
|
820 }
|
jbe@260
|
821 }
|
jbe@260
|
822 #endif
|
jbe@256
|
823 if (moonbr_io_handle_set_linger(L, handle, -1)) {
|
jbe@257
|
824 moonbr_io_prepare_errmsg();
|
jbe@256
|
825 close(handle->fd);
|
jbe@256
|
826 handle->fd = -1;
|
jbe@257
|
827 moonbr_io_return_prepared_errmsg();
|
jbe@256
|
828 }
|
jbe@129
|
829 } else {
|
jbe@129
|
830 handle->closed = 1;
|
jbe@83
|
831 }
|
jbe@94
|
832 if (handle->fd >= 0) {
|
jbe@94
|
833 if (close(handle->fd)) {
|
jbe@94
|
834 handle->fd = -1;
|
jbe@257
|
835 moonbr_io_return_errmsg();
|
jbe@94
|
836 }
|
jbe@104
|
837 handle->fd = -1;
|
jbe@83
|
838 }
|
jbe@83
|
839 lua_pushboolean(L, 1);
|
jbe@83
|
840 return 1;
|
jbe@84
|
841
|
jbe@83
|
842 }
|
jbe@83
|
843
|
jbe@94
|
844 static int moonbr_io_close(lua_State *L) {
|
jbe@261
|
845 return moonbr_io_close_impl(L, 0, 0);
|
jbe@94
|
846 }
|
jbe@94
|
847
|
jbe@84
|
848 static int moonbr_io_reset(lua_State *L) {
|
jbe@261
|
849 return moonbr_io_close_impl(L, 0, 1);
|
jbe@84
|
850 }
|
jbe@84
|
851
|
jbe@108
|
852 static int moonbr_io_handlegc(lua_State *L) {
|
jbe@88
|
853 moonbr_io_handle_t *handle;
|
jbe@88
|
854 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@88
|
855 if (handle->fd >= 0) {
|
jbe@218
|
856 lua_pushcfunction(L, moonbr_io_reset);
|
jbe@88
|
857 lua_pushvalue(L, 1);
|
jbe@88
|
858 lua_pushinteger(L, 0);
|
jbe@88
|
859 lua_call(L, 2, 0);
|
jbe@88
|
860 }
|
jbe@246
|
861 #ifdef MOONBR_IO_USE_TLS
|
jbe@246
|
862 if (handle->tls) {
|
jbe@246
|
863 tls_free(handle->tls);
|
jbe@246
|
864 handle->tls = NULL;
|
jbe@246
|
865 }
|
jbe@246
|
866 if (handle->servertls) {
|
jbe@246
|
867 tls_free(handle->servertls);
|
jbe@246
|
868 handle->servertls = NULL;
|
jbe@246
|
869 }
|
jbe@246
|
870 #endif
|
jbe@88
|
871 return 0;
|
jbe@88
|
872 }
|
jbe@88
|
873
|
jbe@100
|
874 void moonbr_io_closehandle(lua_State *L, int idx, int reset) {
|
jbe@88
|
875 moonbr_io_handle_t *handle;
|
jbe@88
|
876 handle = luaL_checkudata(L, idx, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@100
|
877 if (!handle->closed) {
|
jbe@100
|
878 lua_pushcfunction(L, reset ? moonbr_io_reset : moonbr_io_close);
|
jbe@100
|
879 lua_pushvalue(L, idx < 0 ? idx-1 : idx);
|
jbe@100
|
880 lua_call(L, 1, 0);
|
jbe@88
|
881 }
|
jbe@88
|
882 }
|
jbe@88
|
883
|
jbe@208
|
884 static int moonbr_io_pushhandle_impl(lua_State *L) {
|
jbe@208
|
885 int *fd;
|
jbe@311
|
886 int skip_peeraddr;
|
jbe@79
|
887 moonbr_io_handle_t *handle;
|
jbe@107
|
888 struct sockaddr addr;
|
jbe@107
|
889 socklen_t addrlen;
|
jbe@208
|
890 fd = lua_touserdata(L, 1);
|
jbe@311
|
891 skip_peeraddr = lua_toboolean(L, 2);
|
jbe@79
|
892 handle = lua_newuserdata(L, sizeof(moonbr_io_handle_t));
|
jbe@208
|
893 handle->fd = -1; /* avoid closing incomplete handle */
|
jbe@107
|
894 addrlen = sizeof(addr);
|
jbe@208
|
895 if (getsockname(*fd, &addr, &addrlen)) {
|
jbe@107
|
896 if (errno != ENOTSOCK) {
|
jbe@257
|
897 moonbr_io_prepare_errmsg();
|
jbe@107
|
898 luaL_error(L, "Unexpected error when examining socket: %s", errmsg);
|
jbe@107
|
899 }
|
jbe@107
|
900 handle->issock = 0;
|
jbe@107
|
901 } else {
|
jbe@107
|
902 handle->issock = 1;
|
jbe@107
|
903 handle->addrfam = addr.sa_family;
|
jbe@107
|
904 }
|
jbe@94
|
905 handle->finished = 0;
|
jbe@94
|
906 handle->closed = 0;
|
jbe@81
|
907 handle->nonblocking = -1;
|
jbe@95
|
908 handle->nopush = -1;
|
jbe@85
|
909 handle->readerr = 0;
|
jbe@105
|
910 handle->readbufin = 0;
|
jbe@105
|
911 handle->readbufout = 0;
|
jbe@81
|
912 handle->writeerr = 0;
|
jbe@81
|
913 handle->writeleft = 0;
|
jbe@132
|
914 handle->flushedleft = 0;
|
jbe@83
|
915 handle->writeqin = 0;
|
jbe@83
|
916 handle->writeqout = 0;
|
jbe@81
|
917 handle->writeqoff = 0;
|
jbe@103
|
918 handle->writebufin = 0;
|
jbe@103
|
919 handle->writebufout = 0;
|
jbe@246
|
920 #ifdef MOONBR_IO_USE_TLS
|
jbe@246
|
921 handle->tls = NULL;
|
jbe@246
|
922 handle->servertls = NULL;
|
jbe@250
|
923 handle->tlshandshake = 0;
|
jbe@261
|
924 handle->tlsclosing = 0;
|
jbe@246
|
925 #endif
|
jbe@208
|
926 handle->fd = *fd; /* required for set_linger call */
|
jbe@256
|
927 if (moonbr_io_handle_set_linger(L, handle, 0)) {
|
jbe@257
|
928 moonbr_io_prepare_errmsg();
|
jbe@256
|
929 handle->fd = -1;
|
jbe@256
|
930 luaL_error(L, "Unexpected error while setting SO_LINGER with setsockopt: %s", errmsg);
|
jbe@256
|
931 }
|
jbe@208
|
932 handle->fd = -1; /* avoid closing incomplete handle */
|
jbe@238
|
933 luaL_setmetatable(L, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
934 lua_newtable(L); // uservalue
|
jbe@81
|
935 lua_newtable(L);
|
jbe@103
|
936 lua_setfield(L, -2, "writequeue");
|
jbe@79
|
937 lua_newtable(L); // public
|
jbe@107
|
938 if (handle->addrfam == AF_INET6) {
|
jbe@107
|
939 struct sockaddr_in6 addr_in6;
|
jbe@107
|
940 char addrstrbuf[INET6_ADDRSTRLEN];
|
jbe@107
|
941 const char *addrstr;
|
jbe@107
|
942 addrlen = sizeof(addr_in6);
|
jbe@311
|
943 /* NOTE: According to documentation, getsockname() may fail if connection
|
jbe@311
|
944 * was reset. There seems to be no problem in practice though. */
|
jbe@208
|
945 if (getsockname(*fd, (struct sockaddr *)&addr_in6, &addrlen)) {
|
jbe@257
|
946 moonbr_io_prepare_errmsg();
|
jbe@107
|
947 luaL_error(L, "Could not determine local IP address/port: %s", errmsg);
|
jbe@107
|
948 }
|
jbe@107
|
949 if (addrlen > sizeof(addr_in6)) {
|
jbe@107
|
950 luaL_error(L, "Could not determine local IP address/port: buffer size exceeded");
|
jbe@107
|
951 }
|
jbe@107
|
952 addrstr = inet_ntop(AF_INET6, addr_in6.sin6_addr.s6_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
953 if (!addrstr) {
|
jbe@257
|
954 moonbr_io_prepare_errmsg();
|
jbe@107
|
955 luaL_error(L, "Could not format local IP address: %s", errmsg);
|
jbe@107
|
956 } else {
|
jbe@107
|
957 lua_pushstring(L, addrstr);
|
jbe@107
|
958 lua_setfield(L, -2, "local_ip6");
|
jbe@107
|
959 }
|
jbe@107
|
960 lua_pushinteger(L, ntohs(addr_in6.sin6_port));
|
jbe@107
|
961 lua_setfield(L, -2, "local_tcpport");
|
jbe@311
|
962 if (!skip_peeraddr) {
|
jbe@311
|
963 /* NOTE: According to documentation, getpeername() may fail if connection
|
jbe@311
|
964 * was reset. There seems to be no problem in practice though. */
|
jbe@311
|
965 if (getpeername(*fd, (struct sockaddr *)&addr_in6, &addrlen)) {
|
jbe@311
|
966 moonbr_io_prepare_errmsg();
|
jbe@311
|
967 luaL_error(L, "Could not determine remote IP address/port: %s", errmsg);
|
jbe@311
|
968 }
|
jbe@311
|
969 if (addrlen > sizeof(addr_in6)) {
|
jbe@311
|
970 luaL_error(L, "Could not determine remote IP address/port: buffer size exceeded");
|
jbe@311
|
971 }
|
jbe@311
|
972 addrstr = inet_ntop(AF_INET6, addr_in6.sin6_addr.s6_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@311
|
973 if (!addrstr) {
|
jbe@311
|
974 moonbr_io_prepare_errmsg();
|
jbe@311
|
975 luaL_error(L, "Could not format remote IP address: %s", errmsg);
|
jbe@311
|
976 } else {
|
jbe@311
|
977 lua_pushstring(L, addrstr);
|
jbe@311
|
978 lua_setfield(L, -2, "remote_ip6");
|
jbe@311
|
979 }
|
jbe@311
|
980 lua_pushinteger(L, ntohs(addr_in6.sin6_port));
|
jbe@311
|
981 lua_setfield(L, -2, "remote_tcpport");
|
jbe@107
|
982 }
|
jbe@107
|
983 } else if (handle->addrfam == AF_INET) {
|
jbe@107
|
984 struct sockaddr_in addr_in;
|
jbe@107
|
985 char addrstrbuf[INET_ADDRSTRLEN];
|
jbe@107
|
986 const char *addrstr;
|
jbe@107
|
987 addrlen = sizeof(addr_in);
|
jbe@311
|
988 /* NOTE: According to documentation, getsockname() may fail if connection
|
jbe@311
|
989 * was reset. There seems to be no problem in practice though. */
|
jbe@208
|
990 if (getsockname(*fd, (struct sockaddr *)&addr_in, &addrlen)) {
|
jbe@257
|
991 moonbr_io_prepare_errmsg();
|
jbe@107
|
992 luaL_error(L, "Could not determine local IP address/port: %s", errmsg);
|
jbe@107
|
993 }
|
jbe@107
|
994 if (addrlen > sizeof(addr_in)) {
|
jbe@107
|
995 luaL_error(L, "Could not determine local IP address/port: buffer size exceeded");
|
jbe@107
|
996 }
|
jbe@107
|
997 addrstr = inet_ntop(AF_INET, &addr_in.sin_addr.s_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
998 if (!addrstr) {
|
jbe@257
|
999 moonbr_io_prepare_errmsg();
|
jbe@107
|
1000 luaL_error(L, "Could not format local IP address: %s", errmsg);
|
jbe@107
|
1001 } else {
|
jbe@107
|
1002 lua_pushstring(L, addrstr);
|
jbe@107
|
1003 lua_setfield(L, -2, "local_ip4");
|
jbe@107
|
1004 }
|
jbe@107
|
1005 lua_pushinteger(L, ntohs(addr_in.sin_port));
|
jbe@107
|
1006 lua_setfield(L, -2, "local_tcpport");
|
jbe@311
|
1007 if (!skip_peeraddr) {
|
jbe@311
|
1008 /* NOTE: According to documentation, getpeername() may fail if connection
|
jbe@311
|
1009 * was reset. There seems to be no problem in practice though. */
|
jbe@311
|
1010 if (getpeername(*fd, (struct sockaddr *)&addr_in, &addrlen)) {
|
jbe@311
|
1011 moonbr_io_prepare_errmsg();
|
jbe@311
|
1012 luaL_error(L, "Could not determine remote IP address/port: %s", errmsg);
|
jbe@311
|
1013 }
|
jbe@311
|
1014 if (addrlen > sizeof(addr_in)) {
|
jbe@311
|
1015 luaL_error(L, "Could not determine remote IP address/port: buffer size exceeded");
|
jbe@311
|
1016 }
|
jbe@311
|
1017 addrstr = inet_ntop(AF_INET, &addr_in.sin_addr.s_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@311
|
1018 if (!addrstr) {
|
jbe@311
|
1019 moonbr_io_prepare_errmsg();
|
jbe@311
|
1020 luaL_error(L, "Could not format remote IP address: %s", errmsg);
|
jbe@311
|
1021 } else {
|
jbe@311
|
1022 lua_pushstring(L, addrstr);
|
jbe@311
|
1023 lua_setfield(L, -2, "remote_ip4");
|
jbe@311
|
1024 }
|
jbe@311
|
1025 lua_pushinteger(L, ntohs(addr_in.sin_port));
|
jbe@311
|
1026 lua_setfield(L, -2, "remote_tcpport");
|
jbe@107
|
1027 }
|
jbe@107
|
1028 }
|
jbe@238
|
1029 luaL_setmetatable(L, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
|
jbe@79
|
1030 lua_setfield(L, -2, "public");
|
jbe@79
|
1031 lua_setuservalue(L, -2);
|
jbe@208
|
1032 handle->fd = *fd;
|
jbe@208
|
1033 *fd = -1; /* closing is now handled by garbage collection */
|
jbe@208
|
1034 return 1;
|
jbe@208
|
1035 }
|
jbe@208
|
1036
|
jbe@208
|
1037 void moonbr_io_pushhandle(lua_State *L, int fd) {
|
jbe@208
|
1038 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
|
jbe@208
|
1039 lua_pushlightuserdata(L, &fd);
|
jbe@208
|
1040 if (lua_pcall(L, 1, 1, 0)) {
|
jbe@251
|
1041 if (fd != -1) close(fd); // TODO: correct to close file descriptor here?
|
jbe@208
|
1042 lua_error(L);
|
jbe@208
|
1043 }
|
jbe@79
|
1044 }
|
jbe@79
|
1045
|
jbe@311
|
1046 void moonbr_io_pushhandle_skip_peeraddr(lua_State *L, int fd) {
|
jbe@311
|
1047 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
|
jbe@311
|
1048 lua_pushlightuserdata(L, &fd);
|
jbe@311
|
1049 lua_pushboolean(L, 1);
|
jbe@311
|
1050 if (lua_pcall(L, 2, 1, 0)) {
|
jbe@311
|
1051 if (fd != -1) close(fd); // TODO: correct to close file descriptor here?
|
jbe@311
|
1052 lua_error(L);
|
jbe@311
|
1053 }
|
jbe@311
|
1054 }
|
jbe@311
|
1055
|
jbe@79
|
1056 static int moonbr_io_handleindex(lua_State *L) {
|
jbe@80
|
1057 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@205
|
1058 luaL_checkany(L, 2);
|
jbe@79
|
1059 lua_getuservalue(L, 1);
|
jbe@79
|
1060 lua_getfield(L, -1, "public");
|
jbe@79
|
1061 lua_pushvalue(L, 2);
|
jbe@79
|
1062 lua_gettable(L, -2);
|
jbe@79
|
1063 return 1;
|
jbe@79
|
1064 }
|
jbe@79
|
1065
|
jbe@79
|
1066 static int moonbr_io_handlenewindex(lua_State *L) {
|
jbe@80
|
1067 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@205
|
1068 luaL_checkany(L, 2);
|
jbe@205
|
1069 luaL_checkany(L, 3);
|
jbe@79
|
1070 lua_getuservalue(L, 1);
|
jbe@79
|
1071 lua_getfield(L, -1, "public");
|
jbe@79
|
1072 lua_pushvalue(L, 2);
|
jbe@79
|
1073 lua_pushvalue(L, 3);
|
jbe@79
|
1074 lua_settable(L, -3);
|
jbe@79
|
1075 return 0;
|
jbe@79
|
1076 }
|
jbe@79
|
1077
|
jbe@111
|
1078 static int moonbr_io_localconnect_impl(lua_State *L, int nonblocking) {
|
jbe@111
|
1079 const char *path;
|
jbe@111
|
1080 struct sockaddr_un sockaddr = { .sun_family = AF_LOCAL };
|
jbe@111
|
1081 const int path_maxlen = sizeof(struct sockaddr_un) - (
|
jbe@111
|
1082 (void *)sockaddr.sun_path - (void *)&sockaddr
|
jbe@111
|
1083 ) - 1; /* one byte for termination */
|
jbe@111
|
1084 int sock;
|
jbe@111
|
1085 path = luaL_checkstring(L, 1);
|
jbe@111
|
1086 if (strlen(path) > path_maxlen) luaL_error(L, "Path too long; only %i characters allowed", path_maxlen);
|
jbe@111
|
1087 strcpy(sockaddr.sun_path, path);
|
jbe@111
|
1088 sock = socket(
|
jbe@111
|
1089 PF_LOCAL,
|
jbe@111
|
1090 SOCK_STREAM | SOCK_CLOEXEC | (nonblocking ? SOCK_NONBLOCK : 0),
|
jbe@111
|
1091 0
|
jbe@111
|
1092 );
|
jbe@257
|
1093 if (sock < 0) moonbr_io_return_errmsg();
|
jbe@111
|
1094 if (connect(sock, (struct sockaddr *)&sockaddr, sizeof(sockaddr))) {
|
jbe@111
|
1095 if (!nonblocking && errno == EINTR) {
|
jbe@257
|
1096 moonbr_io_prepare_errmsg();
|
jbe@111
|
1097 close(sock);
|
jbe@257
|
1098 moonbr_io_return_prepared_errmsg();
|
jbe@257
|
1099 } else if (!(nonblocking && (errno == EINPROGRESS || errno == EINTR))) moonbr_io_return_errmsg();
|
jbe@111
|
1100 }
|
jbe@111
|
1101 moonbr_io_pushhandle(L, sock);
|
jbe@111
|
1102 return 1;
|
jbe@111
|
1103 }
|
jbe@111
|
1104
|
jbe@111
|
1105 static int moonbr_io_localconnect(lua_State *L) {
|
jbe@111
|
1106 return moonbr_io_localconnect_impl(L, 0);
|
jbe@111
|
1107 }
|
jbe@111
|
1108
|
jbe@111
|
1109 static int moonbr_io_localconnect_nb(lua_State *L) {
|
jbe@111
|
1110 return moonbr_io_localconnect_impl(L, 1);
|
jbe@111
|
1111 }
|
jbe@111
|
1112
|
jbe@99
|
1113 static int moonbr_io_tcpconnect_impl(lua_State *L, int nonblocking) {
|
jbe@98
|
1114 const char *host, *port;
|
jbe@98
|
1115 struct addrinfo hints = { 0, };
|
jbe@98
|
1116 struct addrinfo *res, *addrinfo;
|
jbe@98
|
1117 int errcode;
|
jbe@98
|
1118 int sock;
|
jbe@98
|
1119 host = luaL_checkstring(L, 1);
|
jbe@98
|
1120 port = luaL_checkstring(L, 2);
|
jbe@98
|
1121 hints.ai_family = AF_UNSPEC;
|
jbe@98
|
1122 hints.ai_socktype = SOCK_STREAM;
|
jbe@98
|
1123 hints.ai_protocol = IPPROTO_TCP;
|
jbe@98
|
1124 hints.ai_flags = AI_ADDRCONFIG;
|
jbe@98
|
1125 errcode = getaddrinfo(host, port, &hints, &res);
|
jbe@98
|
1126 if (errcode) {
|
jbe@102
|
1127 freeaddrinfo(res);
|
jbe@98
|
1128 if (errcode == EAI_SYSTEM) {
|
jbe@257
|
1129 moonbr_io_prepare_errmsg();
|
jbe@98
|
1130 lua_pushnil(L);
|
jbe@98
|
1131 lua_pushfstring(L, "%s: %s", gai_strerror(errcode), errmsg);
|
jbe@98
|
1132 } else {
|
jbe@98
|
1133 lua_pushnil(L);
|
jbe@98
|
1134 lua_pushstring(L, gai_strerror(errcode));
|
jbe@98
|
1135 }
|
jbe@98
|
1136 return 2;
|
jbe@98
|
1137 }
|
jbe@98
|
1138 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
1139 if (addrinfo->ai_family == AF_INET6) goto moonbr_io_tcpconnect_found;
|
jbe@98
|
1140 }
|
jbe@98
|
1141 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
1142 if (addrinfo->ai_family == AF_INET) goto moonbr_io_tcpconnect_found;
|
jbe@98
|
1143 }
|
jbe@98
|
1144 addrinfo = res;
|
jbe@98
|
1145 moonbr_io_tcpconnect_found:
|
jbe@99
|
1146 sock = socket(
|
jbe@134
|
1147 addrinfo->ai_family, /* NOTE: not correctly using PF_* but AF_* constants here */
|
jbe@99
|
1148 addrinfo->ai_socktype | SOCK_CLOEXEC | (nonblocking ? SOCK_NONBLOCK : 0),
|
jbe@99
|
1149 addrinfo->ai_protocol
|
jbe@99
|
1150 );
|
jbe@98
|
1151 if (sock < 0) {
|
jbe@257
|
1152 moonbr_io_prepare_errmsg();
|
jbe@108
|
1153 freeaddrinfo(res);
|
jbe@257
|
1154 moonbr_io_return_prepared_errmsg();
|
jbe@98
|
1155 }
|
jbe@98
|
1156 if (connect(sock, addrinfo->ai_addr, addrinfo->ai_addrlen)) {
|
jbe@108
|
1157 freeaddrinfo(res);
|
jbe@99
|
1158 if (!nonblocking && errno == EINTR) {
|
jbe@257
|
1159 moonbr_io_prepare_errmsg();
|
jbe@99
|
1160 close(sock);
|
jbe@257
|
1161 moonbr_io_return_prepared_errmsg();
|
jbe@257
|
1162 } else if (!(nonblocking && (errno == EINPROGRESS || errno == EINTR))) moonbr_io_return_errmsg();
|
jbe@108
|
1163 } else {
|
jbe@108
|
1164 freeaddrinfo(res);
|
jbe@98
|
1165 }
|
jbe@311
|
1166 if (nonblocking) {
|
jbe@311
|
1167 moonbr_io_pushhandle_skip_peeraddr(L, sock);
|
jbe@311
|
1168 if (addrinfo->ai_family == AF_INET6) {
|
jbe@311
|
1169 // TODO: fill remote_ip6 and remote_tcpport
|
jbe@311
|
1170 } else if (addrinfo->ai_family == AF_INET) {
|
jbe@311
|
1171 // TODO: fill remote_ip4 and remote_tcpport
|
jbe@311
|
1172 }
|
jbe@311
|
1173 } else {
|
jbe@311
|
1174 moonbr_io_pushhandle(L, sock);
|
jbe@311
|
1175 }
|
jbe@98
|
1176 return 1;
|
jbe@98
|
1177 }
|
jbe@98
|
1178
|
jbe@99
|
1179 static int moonbr_io_tcpconnect(lua_State *L) {
|
jbe@99
|
1180 return moonbr_io_tcpconnect_impl(L, 0);
|
jbe@99
|
1181 }
|
jbe@99
|
1182
|
jbe@99
|
1183 static int moonbr_io_tcpconnect_nb(lua_State *L) {
|
jbe@99
|
1184 return moonbr_io_tcpconnect_impl(L, 1);
|
jbe@99
|
1185 }
|
jbe@99
|
1186
|
jbe@112
|
1187 static int moonbr_io_locallisten(lua_State *L) {
|
jbe@112
|
1188 moonbr_io_listener_t *listener;
|
jbe@112
|
1189 const char *path;
|
jbe@118
|
1190 struct stat sb;
|
jbe@112
|
1191 struct sockaddr_un sockaddr = { .sun_family = AF_LOCAL };
|
jbe@112
|
1192 const int path_maxlen = sizeof(struct sockaddr_un) - (
|
jbe@112
|
1193 (void *)sockaddr.sun_path - (void *)&sockaddr
|
jbe@112
|
1194 ) - 1; /* one byte for termination */
|
jbe@112
|
1195 int sock;
|
jbe@112
|
1196 path = luaL_checkstring(L, 1);
|
jbe@112
|
1197 if (strlen(path) > path_maxlen) luaL_error(L, "Path too long; only %i characters allowed", path_maxlen);
|
jbe@112
|
1198 strcpy(sockaddr.sun_path, path);
|
jbe@118
|
1199 if (stat(path, &sb) == 0) {
|
jbe@118
|
1200 if (S_ISSOCK(sb.st_mode)) unlink(path);
|
jbe@118
|
1201 }
|
jbe@112
|
1202 listener = lua_newuserdata(L, sizeof(moonbr_io_listener_t));
|
jbe@117
|
1203 listener->fd = -1;
|
jbe@112
|
1204 luaL_setmetatable(L, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@112
|
1205 sock = socket(
|
jbe@112
|
1206 PF_LOCAL,
|
jbe@112
|
1207 SOCK_STREAM | SOCK_CLOEXEC,
|
jbe@112
|
1208 0
|
jbe@112
|
1209 );
|
jbe@257
|
1210 if (sock < 0) moonbr_io_return_errmsg();
|
jbe@112
|
1211 if (bind(sock, (struct sockaddr *)&sockaddr, sizeof(sockaddr))) {
|
jbe@257
|
1212 moonbr_io_prepare_errmsg();
|
jbe@112
|
1213 close(sock);
|
jbe@257
|
1214 moonbr_io_return_prepared_errmsg();
|
jbe@112
|
1215 }
|
jbe@112
|
1216 if (listen(sock, MOONBR_IO_LISTEN_BACKLOG)) {
|
jbe@257
|
1217 moonbr_io_prepare_errmsg();
|
jbe@112
|
1218 close(sock);
|
jbe@257
|
1219 moonbr_io_return_prepared_errmsg();
|
jbe@112
|
1220 }
|
jbe@112
|
1221 listener->fd = sock;
|
jbe@118
|
1222 listener->addrfam = AF_LOCAL;
|
jbe@112
|
1223 listener->nonblocking = -1;
|
jbe@112
|
1224 return 1;
|
jbe@112
|
1225 }
|
jbe@112
|
1226
|
jbe@108
|
1227 static int moonbr_io_tcplisten(lua_State *L) {
|
jbe@108
|
1228 moonbr_io_listener_t *listener;
|
jbe@108
|
1229 const char *host, *port;
|
jbe@108
|
1230 struct addrinfo hints = { 0, };
|
jbe@108
|
1231 struct addrinfo *res, *addrinfo;
|
jbe@108
|
1232 int errcode;
|
jbe@108
|
1233 int sock;
|
jbe@108
|
1234 host = luaL_optstring(L, 1, NULL);
|
jbe@108
|
1235 port = luaL_checkstring(L, 2);
|
jbe@108
|
1236 listener = lua_newuserdata(L, sizeof(moonbr_io_listener_t));
|
jbe@117
|
1237 listener->fd = -1;
|
jbe@108
|
1238 luaL_setmetatable(L, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1239 hints.ai_family = AF_UNSPEC;
|
jbe@108
|
1240 hints.ai_socktype = SOCK_STREAM;
|
jbe@108
|
1241 hints.ai_protocol = IPPROTO_TCP;
|
jbe@108
|
1242 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
|
jbe@108
|
1243 errcode = getaddrinfo(host, port, &hints, &res);
|
jbe@108
|
1244 if (errcode) {
|
jbe@108
|
1245 freeaddrinfo(res);
|
jbe@108
|
1246 if (errcode == EAI_SYSTEM) {
|
jbe@257
|
1247 moonbr_io_prepare_errmsg();
|
jbe@108
|
1248 lua_pushnil(L);
|
jbe@108
|
1249 lua_pushfstring(L, "%s: %s", gai_strerror(errcode), errmsg);
|
jbe@108
|
1250 } else {
|
jbe@108
|
1251 lua_pushnil(L);
|
jbe@108
|
1252 lua_pushstring(L, gai_strerror(errcode));
|
jbe@108
|
1253 }
|
jbe@108
|
1254 return 2;
|
jbe@108
|
1255 }
|
jbe@108
|
1256 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
1257 if (addrinfo->ai_family == AF_INET6) goto moonbr_io_tcpconnect_found;
|
jbe@108
|
1258 }
|
jbe@108
|
1259 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
1260 if (addrinfo->ai_family == AF_INET) goto moonbr_io_tcpconnect_found;
|
jbe@108
|
1261 }
|
jbe@108
|
1262 addrinfo = res;
|
jbe@108
|
1263 moonbr_io_tcpconnect_found:
|
jbe@118
|
1264 listener->addrfam = addrinfo->ai_family;
|
jbe@108
|
1265 sock = socket(
|
jbe@134
|
1266 addrinfo->ai_family, /* NOTE: not correctly using PF_* but AF_* constants here */
|
jbe@108
|
1267 addrinfo->ai_socktype | SOCK_CLOEXEC,
|
jbe@108
|
1268 addrinfo->ai_protocol
|
jbe@108
|
1269 );
|
jbe@108
|
1270 if (sock < 0) {
|
jbe@257
|
1271 moonbr_io_prepare_errmsg();
|
jbe@108
|
1272 freeaddrinfo(res);
|
jbe@257
|
1273 moonbr_io_return_prepared_errmsg();
|
jbe@108
|
1274 }
|
jbe@120
|
1275 {
|
jbe@120
|
1276 static const int reuseval = 1;
|
jbe@120
|
1277 if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &reuseval, sizeof(reuseval))) {
|
jbe@257
|
1278 moonbr_io_prepare_errmsg();
|
jbe@120
|
1279 freeaddrinfo(res);
|
jbe@120
|
1280 close(sock);
|
jbe@120
|
1281 lua_pushnil(L);
|
jbe@120
|
1282 lua_pushfstring(L, "Error while setting SO_REUSEADDR with setsockopt: %s", errmsg);
|
jbe@120
|
1283 return 2;
|
jbe@120
|
1284 }
|
jbe@120
|
1285 }
|
jbe@108
|
1286 if (bind(sock, addrinfo->ai_addr, addrinfo->ai_addrlen)) {
|
jbe@257
|
1287 moonbr_io_prepare_errmsg();
|
jbe@108
|
1288 freeaddrinfo(res);
|
jbe@108
|
1289 close(sock);
|
jbe@257
|
1290 moonbr_io_return_prepared_errmsg();
|
jbe@108
|
1291 }
|
jbe@108
|
1292 freeaddrinfo(res);
|
jbe@108
|
1293 if (listen(sock, MOONBR_IO_LISTEN_BACKLOG)) {
|
jbe@257
|
1294 moonbr_io_prepare_errmsg();
|
jbe@108
|
1295 close(sock);
|
jbe@257
|
1296 moonbr_io_return_prepared_errmsg();
|
jbe@108
|
1297 }
|
jbe@108
|
1298 listener->fd = sock;
|
jbe@108
|
1299 listener->nonblocking = -1;
|
jbe@108
|
1300 return 1;
|
jbe@108
|
1301 }
|
jbe@108
|
1302
|
jbe@108
|
1303 static int moonbr_io_accept_impl(lua_State *L, int nonblocking) {
|
jbe@108
|
1304 moonbr_io_listener_t *listener;
|
jbe@108
|
1305 int fd;
|
jbe@108
|
1306 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1307 if (listener->fd < 0) luaL_error(L, "Attempt to use a closed listener");
|
jbe@108
|
1308 if (listener->nonblocking != nonblocking) {
|
jbe@108
|
1309 int flags;
|
jbe@108
|
1310 flags = fcntl(listener->fd, F_GETFL, 0);
|
jbe@108
|
1311 if (flags == -1) {
|
jbe@257
|
1312 moonbr_io_prepare_errmsg();
|
jbe@108
|
1313 close(listener->fd);
|
jbe@108
|
1314 listener->fd = -1;
|
jbe@108
|
1315 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@108
|
1316 }
|
jbe@108
|
1317 if (nonblocking) flags |= O_NONBLOCK;
|
jbe@108
|
1318 else flags &= ~O_NONBLOCK;
|
jbe@108
|
1319 if (fcntl(listener->fd, F_SETFL, flags) == -1) {
|
jbe@257
|
1320 moonbr_io_prepare_errmsg();
|
jbe@108
|
1321 close(listener->fd);
|
jbe@108
|
1322 listener->fd = -1;
|
jbe@108
|
1323 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@108
|
1324 }
|
jbe@108
|
1325 listener->nonblocking = nonblocking;
|
jbe@108
|
1326 }
|
jbe@108
|
1327 while (1) {
|
jbe@214
|
1328 #if defined(__linux__) && !defined(_GNU_SOURCE)
|
jbe@215
|
1329 fd = accept(listener->fd, NULL, NULL);
|
jbe@214
|
1330 if (fd != -1) {
|
jbe@214
|
1331 if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1) {
|
jbe@257
|
1332 moonbr_io_prepare_errmsg();
|
jbe@214
|
1333 close(listener->fd);
|
jbe@214
|
1334 listener->fd = -1;
|
jbe@214
|
1335 close(fd);
|
jbe@214
|
1336 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@214
|
1337 }
|
jbe@214
|
1338 }
|
jbe@214
|
1339 #else
|
jbe@108
|
1340 fd = accept4(listener->fd, NULL, NULL, SOCK_CLOEXEC);
|
jbe@214
|
1341 #endif
|
jbe@108
|
1342 if (fd < 0) {
|
jbe@108
|
1343 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@108
|
1344 lua_pushboolean(L, 0);
|
jbe@108
|
1345 lua_pushliteral(L, "No incoming connection pending");
|
jbe@108
|
1346 return 2;
|
jbe@257
|
1347 } else if (errno != EINTR) moonbr_io_return_errmsg();
|
jbe@108
|
1348 } else {
|
jbe@108
|
1349 moonbr_io_pushhandle(L, fd);
|
jbe@108
|
1350 return 1;
|
jbe@108
|
1351 }
|
jbe@108
|
1352 }
|
jbe@108
|
1353 }
|
jbe@108
|
1354
|
jbe@108
|
1355 static int moonbr_io_accept(lua_State *L) {
|
jbe@108
|
1356 return moonbr_io_accept_impl(L, 0);
|
jbe@108
|
1357 }
|
jbe@108
|
1358
|
jbe@108
|
1359 static int moonbr_io_accept_nb(lua_State *L) {
|
jbe@108
|
1360 return moonbr_io_accept_impl(L, 1);
|
jbe@108
|
1361 }
|
jbe@108
|
1362
|
jbe@108
|
1363 static int moonbr_io_unlisten(lua_State *L) {
|
jbe@108
|
1364 moonbr_io_listener_t *listener;
|
jbe@118
|
1365 struct sockaddr_un addr;
|
jbe@118
|
1366 socklen_t addrlen;
|
jbe@118
|
1367 struct stat sb;
|
jbe@108
|
1368 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1369 if (listener->fd < 0) luaL_error(L, "Attempt to close a closed listener");
|
jbe@118
|
1370 addrlen = sizeof(addr);
|
jbe@118
|
1371 if (getsockname(listener->fd, (struct sockaddr *)&addr, &addrlen)) addrlen = 0;
|
jbe@108
|
1372 if (close(listener->fd)) {
|
jbe@257
|
1373 moonbr_io_prepare_errmsg();
|
jbe@108
|
1374 listener->fd = -1;
|
jbe@118
|
1375 if (addrlen && addrlen <= sizeof(addr)) {
|
jbe@118
|
1376 if (stat(addr.sun_path, &sb) == 0) {
|
jbe@118
|
1377 if (S_ISSOCK(sb.st_mode)) unlink(addr.sun_path);
|
jbe@118
|
1378 }
|
jbe@118
|
1379 }
|
jbe@257
|
1380 moonbr_io_return_prepared_errmsg();
|
jbe@108
|
1381 }
|
jbe@108
|
1382 listener->fd = -1;
|
jbe@118
|
1383 if (addrlen && addrlen <= sizeof(addr)) {
|
jbe@118
|
1384 if (stat(addr.sun_path, &sb) == 0) {
|
jbe@118
|
1385 if (S_ISSOCK(sb.st_mode)) unlink(addr.sun_path);
|
jbe@118
|
1386 }
|
jbe@118
|
1387 }
|
jbe@108
|
1388 lua_pushboolean(L, 1);
|
jbe@108
|
1389 return 1;
|
jbe@108
|
1390 }
|
jbe@108
|
1391
|
jbe@108
|
1392 static int moonbr_io_listenergc(lua_State *L) {
|
jbe@108
|
1393 moonbr_io_listener_t *listener;
|
jbe@108
|
1394 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@117
|
1395 if (listener->fd >= 0) close(listener->fd);
|
jbe@108
|
1396 listener->fd = -1;
|
jbe@108
|
1397 return 0;
|
jbe@108
|
1398 }
|
jbe@108
|
1399
|
jbe@205
|
1400 static int moonbr_io_exec(lua_State *L) {
|
jbe@205
|
1401 char **argv;
|
jbe@205
|
1402 int i, argc;
|
jbe@205
|
1403 int sockin[2], sockout[2], sockerr[2];
|
jbe@205
|
1404 volatile int errorcond = 0;
|
jbe@213
|
1405 volatile char errmsgbuf[MOONBR_IO_MAXSTRERRORLEN] = MOONBR_IO_STRERROR_R_MSG;
|
jbe@205
|
1406 moonbr_io_child_t *child;
|
jbe@205
|
1407 argc = lua_gettop(L);
|
jbe@205
|
1408 argv = lua_newuserdata(L, (argc + 1) * sizeof(char *));
|
jbe@205
|
1409 for (i=0; i<argc; i++) argv[i] = (char *)luaL_checkstring(L, i+1);
|
jbe@205
|
1410 argv[argc] = NULL;
|
jbe@208
|
1411 child = lua_newuserdata(L, sizeof(moonbr_io_child_t));
|
jbe@208
|
1412 child->pid = 0;
|
jbe@303
|
1413 child->status_valid = 0;
|
jbe@208
|
1414 lua_newtable(L);
|
jbe@208
|
1415 lua_setuservalue(L, -2);
|
jbe@238
|
1416 luaL_setmetatable(L, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@206
|
1417 if (socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, sockin)) {
|
jbe@257
|
1418 moonbr_io_prepare_errmsg();
|
jbe@205
|
1419 lua_pushnil(L);
|
jbe@205
|
1420 lua_pushfstring(L, "Could not create socket pair: %s", errmsg);
|
jbe@205
|
1421 return 2;
|
jbe@205
|
1422 }
|
jbe@206
|
1423 if (socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, sockout)) {
|
jbe@257
|
1424 moonbr_io_prepare_errmsg();
|
jbe@205
|
1425 close(sockin[0]);
|
jbe@205
|
1426 close(sockin[1]);
|
jbe@205
|
1427 lua_pushnil(L);
|
jbe@205
|
1428 lua_pushfstring(L, "Could not create socket pair: %s", errmsg);
|
jbe@205
|
1429 return 2;
|
jbe@205
|
1430 }
|
jbe@206
|
1431 if (socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, sockerr)) {
|
jbe@257
|
1432 moonbr_io_prepare_errmsg();
|
jbe@205
|
1433 close(sockin[0]);
|
jbe@205
|
1434 close(sockin[1]);
|
jbe@205
|
1435 close(sockout[0]);
|
jbe@205
|
1436 close(sockout[1]);
|
jbe@205
|
1437 lua_pushnil(L);
|
jbe@205
|
1438 lua_pushfstring(L, "Could not create socket pair: %s", errmsg);
|
jbe@205
|
1439 return 2;
|
jbe@205
|
1440 }
|
jbe@205
|
1441 child->pid = vfork();
|
jbe@205
|
1442 if (child->pid == -1) {
|
jbe@257
|
1443 moonbr_io_prepare_errmsg();
|
jbe@205
|
1444 close(sockin[0]);
|
jbe@205
|
1445 close(sockin[1]);
|
jbe@205
|
1446 close(sockout[0]);
|
jbe@205
|
1447 close(sockout[1]);
|
jbe@205
|
1448 close(sockerr[0]);
|
jbe@205
|
1449 close(sockerr[1]);
|
jbe@205
|
1450 lua_pushnil(L);
|
jbe@205
|
1451 lua_pushfstring(L, "Could not fork: %s", errmsg);
|
jbe@205
|
1452 return 2;
|
jbe@205
|
1453 }
|
jbe@205
|
1454 if (!child->pid) {
|
jbe@208
|
1455 if (dup2(sockin[1], 0) == -1) goto moonbr_io_exec_error1;
|
jbe@208
|
1456 if (dup2(sockout[1], 1) == -1) goto moonbr_io_exec_error1;
|
jbe@208
|
1457 if (dup2(sockerr[1], 2) == -1) goto moonbr_io_exec_error1;
|
jbe@232
|
1458 closefrom(3);
|
jbe@208
|
1459 if (fcntl(0, F_SETFD, 0) == -1) goto moonbr_io_exec_error1;
|
jbe@208
|
1460 if (fcntl(1, F_SETFD, 0) == -1) goto moonbr_io_exec_error1;
|
jbe@208
|
1461 if (fcntl(2, F_SETFD, 0) == -1) goto moonbr_io_exec_error1;
|
jbe@205
|
1462 if (execvp(argv[0], argv)) {
|
jbe@205
|
1463 errorcond = 2;
|
jbe@205
|
1464 strerror_r(errno, (char *)errmsgbuf, MOONBR_IO_MAXSTRERRORLEN);
|
jbe@205
|
1465 _exit(0);
|
jbe@205
|
1466 }
|
jbe@208
|
1467 moonbr_io_exec_error1:
|
jbe@206
|
1468 errorcond = 1;
|
jbe@206
|
1469 strerror_r(errno, (char *)errmsgbuf, MOONBR_IO_MAXSTRERRORLEN);
|
jbe@206
|
1470 _exit(0);
|
jbe@205
|
1471 }
|
jbe@205
|
1472 close(sockin[1]);
|
jbe@205
|
1473 close(sockout[1]);
|
jbe@205
|
1474 close(sockerr[1]);
|
jbe@205
|
1475 if (errorcond) {
|
jbe@205
|
1476 int status;
|
jbe@205
|
1477 close(sockin[0]);
|
jbe@205
|
1478 close(sockout[0]);
|
jbe@205
|
1479 close(sockerr[0]);
|
jbe@205
|
1480 while (waitpid(child->pid, &status, 0) == -1) {
|
jbe@205
|
1481 if (errno != EINTR) {
|
jbe@257
|
1482 moonbr_io_prepare_errmsg();
|
jbe@205
|
1483 luaL_error(L, "Error in waitpid call after unsuccessful exec: %s", errmsg);
|
jbe@205
|
1484 }
|
jbe@205
|
1485 }
|
jbe@208
|
1486 child->pid = 0;
|
jbe@205
|
1487 lua_pushnil(L);
|
jbe@205
|
1488 if (errorcond == 2) lua_pushfstring(L, "Could not execute: %s", errmsgbuf);
|
jbe@205
|
1489 else lua_pushfstring(L, "Error in fork: %s", errmsgbuf);
|
jbe@205
|
1490 return 2;
|
jbe@205
|
1491 }
|
jbe@208
|
1492 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
|
jbe@208
|
1493 lua_pushlightuserdata(L, &sockin[0]);
|
jbe@208
|
1494 if (lua_pcall(L, 1, 1, 0)) {
|
jbe@208
|
1495 if (sockin[0] != -1) close(sockin[0]);
|
jbe@208
|
1496 close(sockout[0]);
|
jbe@208
|
1497 close(sockerr[0]);
|
jbe@208
|
1498 goto moonbr_io_exec_error2;
|
jbe@208
|
1499 }
|
jbe@205
|
1500 lua_setfield(L, -2, "stdin");
|
jbe@208
|
1501 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
|
jbe@208
|
1502 lua_pushlightuserdata(L, &sockout[0]);
|
jbe@208
|
1503 if (lua_pcall(L, 1, 1, 0)) {
|
jbe@208
|
1504 if (sockout[0] != -1) close(sockout[0]);
|
jbe@208
|
1505 close(sockerr[0]);
|
jbe@208
|
1506 goto moonbr_io_exec_error2;
|
jbe@208
|
1507 }
|
jbe@205
|
1508 lua_setfield(L, -2, "stdout");
|
jbe@208
|
1509 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
|
jbe@208
|
1510 lua_pushlightuserdata(L, &sockerr[0]);
|
jbe@208
|
1511 if (lua_pcall(L, 1, 1, 0)) {
|
jbe@208
|
1512 if (sockerr[0] != -1) close(sockerr[0]);
|
jbe@208
|
1513 goto moonbr_io_exec_error2;
|
jbe@208
|
1514 }
|
jbe@205
|
1515 lua_setfield(L, -2, "stderr");
|
jbe@205
|
1516 return 1;
|
jbe@208
|
1517 moonbr_io_exec_error2:
|
jbe@208
|
1518 {
|
jbe@208
|
1519 int status;
|
jbe@208
|
1520 while (waitpid(child->pid, &status, 0) == -1) {
|
jbe@208
|
1521 if (errno != EINTR) {
|
jbe@257
|
1522 moonbr_io_prepare_errmsg();
|
jbe@208
|
1523 luaL_error(L, "Error in waitpid call after error creating socket handles: %s", errmsg);
|
jbe@208
|
1524 }
|
jbe@208
|
1525 }
|
jbe@208
|
1526 }
|
jbe@208
|
1527 child->pid = 0;
|
jbe@208
|
1528 return lua_error(L);
|
jbe@205
|
1529 }
|
jbe@205
|
1530
|
jbe@205
|
1531 static int moonbr_io_childindex(lua_State *L) {
|
jbe@205
|
1532 luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1533 luaL_checkany(L, 2);
|
jbe@205
|
1534 lua_getuservalue(L, 1);
|
jbe@205
|
1535 lua_pushvalue(L, 2);
|
jbe@205
|
1536 lua_gettable(L, -2);
|
jbe@205
|
1537 if (lua_isnil(L, -1)) {
|
jbe@205
|
1538 luaL_getmetatable(L, MOONBR_IO_CHILD_PT_REGKEY);
|
jbe@205
|
1539 lua_pushvalue(L, 2);
|
jbe@205
|
1540 lua_gettable(L, -2);
|
jbe@205
|
1541 }
|
jbe@205
|
1542 return 1;
|
jbe@205
|
1543 }
|
jbe@205
|
1544
|
jbe@205
|
1545 static int moonbr_io_childnewindex(lua_State *L) {
|
jbe@205
|
1546 luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1547 luaL_checkany(L, 2);
|
jbe@205
|
1548 luaL_checkany(L, 3);
|
jbe@205
|
1549 lua_getuservalue(L, 1);
|
jbe@205
|
1550 lua_pushvalue(L, 2);
|
jbe@205
|
1551 lua_pushvalue(L, 3);
|
jbe@205
|
1552 lua_settable(L, -3);
|
jbe@205
|
1553 return 0;
|
jbe@205
|
1554 }
|
jbe@205
|
1555
|
jbe@205
|
1556 static int moonbr_io_childgc(lua_State *L) {
|
jbe@205
|
1557 moonbr_io_child_t *child;
|
jbe@205
|
1558 child = luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1559 if (child->pid) {
|
jbe@205
|
1560 int status;
|
jbe@281
|
1561 int pid = child->pid;
|
jbe@281
|
1562 child->pid = 0;
|
jbe@281
|
1563 if (kill(pid, SIGKILL)) {
|
jbe@257
|
1564 moonbr_io_prepare_errmsg();
|
jbe@205
|
1565 luaL_error(L, "Error in kill call during garbage collection: %s", errmsg);
|
jbe@205
|
1566 }
|
jbe@281
|
1567 while (waitpid(pid, &status, 0) == -1) {
|
jbe@205
|
1568 if (errno != EINTR) {
|
jbe@257
|
1569 moonbr_io_prepare_errmsg();
|
jbe@205
|
1570 luaL_error(L, "Error in waitpid call during garbage collection: %s", errmsg);
|
jbe@205
|
1571 }
|
jbe@205
|
1572 }
|
jbe@205
|
1573 }
|
jbe@205
|
1574 return 0;
|
jbe@205
|
1575 }
|
jbe@205
|
1576
|
jbe@205
|
1577 static int moonbr_io_kill(lua_State *L) {
|
jbe@205
|
1578 moonbr_io_child_t *child;
|
jbe@205
|
1579 int sig;
|
jbe@205
|
1580 child = luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@285
|
1581 sig = luaL_optinteger(L, 2, SIGKILL);
|
jbe@303
|
1582 if (!child->pid) {
|
jbe@303
|
1583 if (!child->status_valid) luaL_error(L, "Attempt to kill an already collected child process");
|
jbe@303
|
1584 } else {
|
jbe@303
|
1585 if (kill(child->pid, sig)) {
|
jbe@303
|
1586 moonbr_io_prepare_errmsg();
|
jbe@303
|
1587 luaL_error(L, "Error in kill call: %s", errmsg);
|
jbe@303
|
1588 }
|
jbe@205
|
1589 }
|
jbe@205
|
1590 lua_settop(L, 1);
|
jbe@205
|
1591 return 1;
|
jbe@205
|
1592 }
|
jbe@205
|
1593
|
jbe@205
|
1594 static int moonbr_io_wait_impl(lua_State *L, int nonblocking) {
|
jbe@205
|
1595 moonbr_io_child_t *child;
|
jbe@205
|
1596 int status;
|
jbe@205
|
1597 child = luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@303
|
1598 if (!child->pid) {
|
jbe@303
|
1599 if (!child->status_valid) luaL_error(L, "Attempt to wait for an already collected child process");
|
jbe@303
|
1600 status = child->status;
|
jbe@303
|
1601 child->status_valid = 0;
|
jbe@303
|
1602 } else {
|
jbe@303
|
1603 pid_t waitedpid;
|
jbe@303
|
1604 while ((waitedpid = waitpid(child->pid, &status, nonblocking ? WNOHANG : 0)) == -1) {
|
jbe@303
|
1605 if (errno != EINTR) {
|
jbe@303
|
1606 moonbr_io_prepare_errmsg();
|
jbe@303
|
1607 luaL_error(L, "Error in waitpid call: %s", errmsg);
|
jbe@303
|
1608 }
|
jbe@205
|
1609 }
|
jbe@303
|
1610 if (!waitedpid) {
|
jbe@303
|
1611 lua_pushboolean(L, 0);
|
jbe@303
|
1612 lua_pushliteral(L, "Process is still running");
|
jbe@303
|
1613 return 2;
|
jbe@303
|
1614 }
|
jbe@303
|
1615 child->pid = 0;
|
jbe@205
|
1616 }
|
jbe@303
|
1617 if (WIFEXITED(status)) {
|
jbe@303
|
1618 lua_pushinteger(L, WEXITSTATUS(status));
|
jbe@303
|
1619 } else if (WIFSIGNALED(status)) {
|
jbe@303
|
1620 lua_pushinteger(L, -WTERMSIG(status));
|
jbe@205
|
1621 } else {
|
jbe@303
|
1622 luaL_error(L, "Unexpected status value returned by waitpid call");
|
jbe@205
|
1623 }
|
jbe@303
|
1624 return 1;
|
jbe@205
|
1625 }
|
jbe@205
|
1626
|
jbe@205
|
1627 static int moonbr_io_wait(lua_State *L) {
|
jbe@205
|
1628 return moonbr_io_wait_impl(L, 0);
|
jbe@205
|
1629 }
|
jbe@205
|
1630
|
jbe@205
|
1631 static int moonbr_io_wait_nb(lua_State *L) {
|
jbe@205
|
1632 return moonbr_io_wait_impl(L, 1);
|
jbe@205
|
1633 }
|
jbe@205
|
1634
|
jbe@205
|
1635 #if LUA_VERSION_NUM >= 503
|
jbe@205
|
1636 static int moonbr_io_wait_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@205
|
1637 #else
|
jbe@205
|
1638 static int moonbr_io_wait_cont(lua_State *L) {
|
jbe@205
|
1639 #endif
|
jbe@205
|
1640 #if !(LUA_VERSION_NUM >= 503)
|
jbe@205
|
1641 int ctx = 0;
|
jbe@205
|
1642 lua_getctx(L, &ctx);
|
jbe@205
|
1643 #endif
|
jbe@205
|
1644 while (1) {
|
jbe@205
|
1645 lua_pushcfunction(L, moonbr_io_wait_nb);
|
jbe@205
|
1646 lua_pushvalue(L, 1);
|
jbe@205
|
1647 lua_call(L, 1, 1);
|
jbe@205
|
1648 if (!lua_isnil(L, -1)) break;
|
jbe@205
|
1649 lua_pushvalue(L, 2);
|
jbe@205
|
1650 lua_callk(L, 0, 0, ctx, moonbr_io_wait_cont);
|
jbe@205
|
1651 }
|
jbe@205
|
1652 return 1;
|
jbe@205
|
1653 }
|
jbe@205
|
1654
|
jbe@205
|
1655 static int moonbr_io_wait_call(lua_State *L) {
|
jbe@205
|
1656 lua_settop(L, 2);
|
jbe@205
|
1657 #if LUA_VERSION_NUM >= 503
|
jbe@205
|
1658 return moonbr_io_wait_cont(L, 0, 0);
|
jbe@205
|
1659 #else
|
jbe@205
|
1660 return moonbr_io_wait_cont(L);
|
jbe@205
|
1661 #endif
|
jbe@205
|
1662 }
|
jbe@205
|
1663
|
jbe@205
|
1664 moonbr_io_yield_wrapper(moonbr_io_wait_yield, moonbr_io_wait_call);
|
jbe@205
|
1665
|
jbe@284
|
1666 static void moonbr_io_sigterm_handler(int sig) {
|
jbe@284
|
1667 moonbr_io_sigterm_flag = 1;
|
jbe@266
|
1668 }
|
jbe@266
|
1669
|
jbe@297
|
1670 static void moonbr_io_sigchld_handler(int sig) {
|
jbe@297
|
1671 moonbr_io_sigchld_flag = 1;
|
jbe@297
|
1672 }
|
jbe@297
|
1673
|
jbe@288
|
1674 int moonbr_io_catch_sigterm(lua_State *L) {
|
jbe@284
|
1675 signal(SIGTERM, moonbr_io_sigterm_handler);
|
jbe@284
|
1676 return 0;
|
jbe@284
|
1677 }
|
jbe@284
|
1678
|
jbe@266
|
1679 static int moonbr_io_getpid(lua_State *L) {
|
jbe@266
|
1680 lua_pushinteger(L, getpid());
|
jbe@266
|
1681 return 1;
|
jbe@266
|
1682 }
|
jbe@266
|
1683
|
jbe@250
|
1684 #ifdef MOONBR_IO_USE_TLS
|
jbe@258
|
1685
|
jbe@250
|
1686 #define moonbr_io_poll_tls() \
|
jbe@250
|
1687 if (!handle->tlshandshake) { \
|
jbe@295
|
1688 force_wakeup = 1; \
|
jbe@295
|
1689 continue; \
|
jbe@250
|
1690 } \
|
jbe@250
|
1691 if (handle->tlshandshake == TLS_WANT_POLLIN) { \
|
jbe@250
|
1692 if (fd < 0) { \
|
jbe@295
|
1693 force_wakeup = 1; \
|
jbe@295
|
1694 continue; \
|
jbe@250
|
1695 } \
|
jbe@250
|
1696 FD_SET(fd, &readfds); \
|
jbe@250
|
1697 if (fd+1 > nfds) nfds = fd+1; \
|
jbe@250
|
1698 continue; \
|
jbe@250
|
1699 } \
|
jbe@250
|
1700 if (handle->tlshandshake == TLS_WANT_POLLOUT) { \
|
jbe@250
|
1701 if (fd < 0) { \
|
jbe@295
|
1702 force_wakeup = 1; \
|
jbe@295
|
1703 continue; \
|
jbe@250
|
1704 } \
|
jbe@250
|
1705 FD_SET(fd, &writefds); \
|
jbe@250
|
1706 if (fd+1 > nfds) nfds = fd+1; \
|
jbe@250
|
1707 continue; \
|
jbe@250
|
1708 } \
|
jbe@250
|
1709 while (0)
|
jbe@258
|
1710
|
jbe@258
|
1711 #endif /* MOONBR_IO_USE_TLS */
|
jbe@250
|
1712
|
jbe@106
|
1713 static int moonbr_io_poll(lua_State *L) {
|
jbe@106
|
1714 moonbr_io_handle_t *handle;
|
jbe@108
|
1715 moonbr_io_listener_t *listener;
|
jbe@296
|
1716 moonbr_io_child_t *child;
|
jbe@106
|
1717 int fd, isnum;
|
jbe@106
|
1718 int nfds = 0;
|
jbe@106
|
1719 fd_set readfds, writefds, exceptfds;
|
jbe@284
|
1720 struct timespec timeout = {0, };
|
jbe@295
|
1721 int force_wakeup = 0;
|
jbe@288
|
1722 int use_timeout = 0; // negative for negative timeout
|
jbe@284
|
1723 int check_sigterm = 0;
|
jbe@297
|
1724 int check_sigchld = 0;
|
jbe@298
|
1725 pid_t waitedpid;
|
jbe@284
|
1726 sigset_t mask, orig_mask;
|
jbe@106
|
1727 int status;
|
jbe@106
|
1728 FD_ZERO(&readfds);
|
jbe@106
|
1729 FD_ZERO(&writefds);
|
jbe@106
|
1730 FD_ZERO(&exceptfds);
|
jbe@106
|
1731 if (!lua_isnoneornil(L, 1)) {
|
jbe@106
|
1732 luaL_checktype(L, 1, LUA_TTABLE);
|
jbe@106
|
1733 for (lua_pushnil(L); lua_next(L, 1); lua_pop(L, 1)) {
|
jbe@106
|
1734 if (lua_toboolean(L, -1)) {
|
jbe@106
|
1735 handle = luaL_testudata(L, -2, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@106
|
1736 if (handle) {
|
jbe@109
|
1737 if (handle->closed) luaL_error(L, "Attempt to poll a closed connection");
|
jbe@106
|
1738 fd = handle->fd;
|
jbe@247
|
1739 #if MOONBR_IO_USE_TLS
|
jbe@250
|
1740 moonbr_io_poll_tls();
|
jbe@247
|
1741 #endif
|
jbe@122
|
1742 if (
|
jbe@122
|
1743 fd < 0 || /* fake EOF to simulate shutdown if fd < 0 */
|
jbe@122
|
1744 handle->readbufin != handle->readbufout /* data pending in buffer */
|
jbe@122
|
1745 ) {
|
jbe@295
|
1746 force_wakeup = 1;
|
jbe@295
|
1747 continue;
|
jbe@109
|
1748 }
|
jbe@106
|
1749 } else {
|
jbe@108
|
1750 listener = luaL_testudata(L, -2, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1751 if (listener) {
|
jbe@108
|
1752 fd = listener->fd;
|
jbe@108
|
1753 if (fd < 0) luaL_error(L, "Attempt to poll a closed listener");
|
jbe@108
|
1754 } else {
|
jbe@296
|
1755 child = luaL_testudata(L, -2, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@296
|
1756 if (child) {
|
jbe@299
|
1757 if (!child->pid) luaL_error(L, "Attemt to poll an already collected child process");
|
jbe@297
|
1758 if (!check_sigchld) {
|
jbe@297
|
1759 check_sigchld = 1;
|
jbe@297
|
1760 moonbr_io_sigchld_flag = 0;
|
jbe@297
|
1761 signal(SIGCHLD, moonbr_io_sigchld_handler);
|
jbe@297
|
1762 }
|
jbe@303
|
1763 if (child->status_valid) {
|
jbe@303
|
1764 force_wakeup = 1;
|
jbe@303
|
1765 } else {
|
jbe@303
|
1766 while ((waitedpid = waitpid(child->pid, &status, WNOHANG)) == -1) {
|
jbe@303
|
1767 if (errno != EINTR) {
|
jbe@303
|
1768 moonbr_io_prepare_errmsg();
|
jbe@303
|
1769 luaL_error(L, "Error in waitpid call: %s", errmsg);
|
jbe@303
|
1770 }
|
jbe@303
|
1771 }
|
jbe@303
|
1772 if (waitedpid) {
|
jbe@303
|
1773 child->pid = 0;
|
jbe@303
|
1774 child->status = status;
|
jbe@303
|
1775 child->status_valid = 1;
|
jbe@303
|
1776 force_wakeup = 1;
|
jbe@298
|
1777 }
|
jbe@298
|
1778 }
|
jbe@296
|
1779 continue;
|
jbe@296
|
1780 } else {
|
jbe@296
|
1781 fd = lua_tointegerx(L, -2, &isnum);
|
jbe@296
|
1782 if (!isnum) luaL_error(L, "Expected integer (file descriptor), I/O handle, or listener in table key");
|
jbe@296
|
1783 }
|
jbe@108
|
1784 }
|
jbe@106
|
1785 }
|
jbe@138
|
1786 if (fd < 0 || fd >= FD_SETSIZE) luaL_error(L, "File descriptor out of valid range");
|
jbe@106
|
1787 FD_SET(fd, &readfds);
|
jbe@106
|
1788 if (fd+1 > nfds) nfds = fd+1;
|
jbe@106
|
1789 }
|
jbe@106
|
1790 }
|
jbe@106
|
1791 }
|
jbe@106
|
1792 if (!lua_isnoneornil(L, 2)) {
|
jbe@106
|
1793 luaL_checktype(L, 2, LUA_TTABLE);
|
jbe@106
|
1794 for (lua_pushnil(L); lua_next(L, 2); lua_pop(L, 1)) {
|
jbe@106
|
1795 if (lua_toboolean(L, -1)) {
|
jbe@106
|
1796 handle = luaL_testudata(L, -2, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@106
|
1797 if (handle) {
|
jbe@109
|
1798 if (handle->closed) luaL_error(L, "Attempt to poll a closed connection");
|
jbe@109
|
1799 if (handle->finished) luaL_error(L, "Attempt to write-poll a finished connection");
|
jbe@106
|
1800 fd = handle->fd;
|
jbe@247
|
1801 #if MOONBR_IO_USE_TLS
|
jbe@250
|
1802 moonbr_io_poll_tls();
|
jbe@247
|
1803 #endif
|
jbe@106
|
1804 } else {
|
jbe@108
|
1805 listener = luaL_testudata(L, -2, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@109
|
1806 if (listener) luaL_error(L, "Attempt to write-poll a listener");
|
jbe@109
|
1807 fd = lua_tointegerx(L, -2, &isnum);
|
jbe@109
|
1808 if (!isnum) luaL_error(L, "Expected integer (file descriptor) or I/O handle in table key");
|
jbe@106
|
1809 }
|
jbe@138
|
1810 if (fd < 0 || fd >= FD_SETSIZE) luaL_error(L, "File descriptor out of valid range");
|
jbe@106
|
1811 FD_SET(fd, &writefds);
|
jbe@106
|
1812 if (fd+1 > nfds) nfds = fd+1;
|
jbe@106
|
1813 }
|
jbe@106
|
1814 }
|
jbe@106
|
1815 }
|
jbe@106
|
1816 if (!lua_isnoneornil(L, 3)) {
|
jbe@106
|
1817 lua_Number n;
|
jbe@106
|
1818 n = lua_tonumberx(L, 3, &isnum);
|
jbe@146
|
1819 if (isnum && n<0) {
|
jbe@288
|
1820 use_timeout = -1;
|
jbe@146
|
1821 } else if (isnum && n>=0 && n<100000000) {
|
jbe@288
|
1822 use_timeout = 1;
|
jbe@106
|
1823 timeout.tv_sec = n;
|
jbe@284
|
1824 timeout.tv_nsec = 1e9 * (n - timeout.tv_sec);
|
jbe@106
|
1825 } else {
|
jbe@106
|
1826 luaL_argcheck(L, 0, 3, "not a valid timeout");
|
jbe@106
|
1827 }
|
jbe@284
|
1828 }
|
jbe@295
|
1829 if (use_timeout < 0) force_wakeup = 1;
|
jbe@284
|
1830 if (!lua_isnoneornil(L, 4)) luaL_checktype(L, 4, LUA_TBOOLEAN);
|
jbe@284
|
1831 check_sigterm = lua_toboolean(L, 4);
|
jbe@297
|
1832 if ((check_sigterm || check_sigchld) && !force_wakeup) {
|
jbe@296
|
1833 sigemptyset(&mask);
|
jbe@296
|
1834 if (check_sigterm) sigaddset(&mask, SIGTERM);
|
jbe@297
|
1835 if (check_sigchld) sigaddset(&mask, SIGCHLD);
|
jbe@296
|
1836 if (sigprocmask(SIG_BLOCK, &mask, &orig_mask)) abort();
|
jbe@296
|
1837 }
|
jbe@296
|
1838 if (check_sigterm && moonbr_io_sigterm_flag) {
|
jbe@295
|
1839 if (!force_wakeup) {
|
jbe@296
|
1840 if (sigprocmask(SIG_SETMASK, &orig_mask, NULL)) abort();
|
jbe@295
|
1841 }
|
jbe@296
|
1842 lua_pushboolean(L, 0);
|
jbe@296
|
1843 lua_pushliteral(L, "SIGTERM received");
|
jbe@296
|
1844 lua_pushboolean(L, 1);
|
jbe@296
|
1845 return 3;
|
jbe@296
|
1846 }
|
jbe@297
|
1847 if (check_sigchld && !force_wakeup && moonbr_io_sigchld_flag) {
|
jbe@297
|
1848 if (sigprocmask(SIG_SETMASK, &orig_mask, NULL)) abort();
|
jbe@297
|
1849 force_wakeup = 1;
|
jbe@288
|
1850 }
|
jbe@288
|
1851 if (use_timeout < 0) {
|
jbe@288
|
1852 lua_pushboolean(L, 0);
|
jbe@290
|
1853 lua_pushliteral(L, "Timeout");
|
jbe@288
|
1854 if (check_sigterm) {
|
jbe@288
|
1855 lua_pushboolean(L, 0);
|
jbe@288
|
1856 return 3;
|
jbe@288
|
1857 } else {
|
jbe@284
|
1858 return 2;
|
jbe@284
|
1859 }
|
jbe@284
|
1860 }
|
jbe@295
|
1861 if (!force_wakeup) {
|
jbe@295
|
1862 status = pselect(
|
jbe@295
|
1863 nfds, &readfds, &writefds, &exceptfds,
|
jbe@295
|
1864 use_timeout ? &timeout : NULL,
|
jbe@301
|
1865 (check_sigterm || check_sigchld) ? &orig_mask : NULL
|
jbe@295
|
1866 );
|
jbe@301
|
1867 if (check_sigterm || check_sigchld) {
|
jbe@295
|
1868 if (sigprocmask(SIG_SETMASK, &orig_mask, NULL)) abort();
|
jbe@301
|
1869 if (check_sigterm && moonbr_io_sigterm_flag) {
|
jbe@295
|
1870 lua_pushboolean(L, 0);
|
jbe@295
|
1871 lua_pushliteral(L, "SIGTERM received");
|
jbe@295
|
1872 lua_pushboolean(L, 1);
|
jbe@295
|
1873 return 3;
|
jbe@295
|
1874 }
|
jbe@295
|
1875 }
|
jbe@295
|
1876 if (status == -1) {
|
jbe@295
|
1877 if (errno == EINTR) {
|
jbe@295
|
1878 lua_pushboolean(L, 1);
|
jbe@295
|
1879 return 1;
|
jbe@295
|
1880 } else {
|
jbe@295
|
1881 moonbr_io_prepare_errmsg();
|
jbe@295
|
1882 return luaL_error(L, "Unexpected error during \"select\" system call: %s", errmsg);
|
jbe@295
|
1883 }
|
jbe@295
|
1884 } else if (status == 0) {
|
jbe@292
|
1885 lua_pushboolean(L, 0);
|
jbe@295
|
1886 lua_pushliteral(L, "Timeout");
|
jbe@295
|
1887 if (check_sigterm) {
|
jbe@295
|
1888 lua_pushboolean(L, 0);
|
jbe@295
|
1889 return 3;
|
jbe@295
|
1890 } else {
|
jbe@295
|
1891 return 2;
|
jbe@295
|
1892 }
|
jbe@292
|
1893 }
|
jbe@106
|
1894 }
|
jbe@295
|
1895 lua_pushboolean(L, 1);
|
jbe@295
|
1896 return 1;
|
jbe@106
|
1897 }
|
jbe@106
|
1898
|
jbe@115
|
1899 static int moonbr_io_timeref(lua_State *L) {
|
jbe@115
|
1900 lua_Number sub;
|
jbe@115
|
1901 struct timespec tp;
|
jbe@115
|
1902 sub = luaL_optnumber(L, 1, 0);
|
jbe@115
|
1903 if (clock_gettime(CLOCK_MONOTONIC, &tp)) {
|
jbe@115
|
1904 return luaL_error(L, "Could not access CLOCK_MONOTONIC");
|
jbe@115
|
1905 }
|
jbe@115
|
1906 lua_pushnumber(L, tp.tv_sec + tp.tv_nsec / 1.0e9 - sub);
|
jbe@115
|
1907 return 1;
|
jbe@115
|
1908 }
|
jbe@115
|
1909
|
jbe@243
|
1910 #ifdef MOONBR_IO_USE_TLS
|
jbe@243
|
1911
|
jbe@243
|
1912 #define moonbr_io_tlsconf_string(name, field, func) \
|
jbe@243
|
1913 /* NOTE: use valuetype = lua_getfield(...) for LUA_VERSION_NUM >= 503 */ \
|
jbe@243
|
1914 lua_getfield(L, 1, (field)); \
|
jbe@243
|
1915 valuetype = lua_type(L, -1); \
|
jbe@243
|
1916 if (valuetype != LUA_TNIL) { \
|
jbe@243
|
1917 luaL_argcheck(L, valuetype == LUA_TSTRING, 1, "field \"" field "\" is not a string"); \
|
jbe@243
|
1918 value = lua_tostring(L, -1); \
|
jbe@252
|
1919 if (func(tlsconf->config, value)) { \
|
jbe@243
|
1920 lua_pushnil(L); \
|
jbe@243
|
1921 lua_pushfstring(L, "Could not set " name " \"%s\"", value); \
|
jbe@243
|
1922 return 2; \
|
jbe@243
|
1923 } \
|
jbe@243
|
1924 } \
|
jbe@243
|
1925 lua_pop(L, 1);
|
jbe@243
|
1926
|
jbe@243
|
1927 #define moonbr_io_tlsconf_binary(name, field, func) \
|
jbe@243
|
1928 /* NOTE: use valuetype = lua_getfield(...) for LUA_VERSION_NUM >= 503 */ \
|
jbe@243
|
1929 lua_getfield(L, 1, (field)); \
|
jbe@243
|
1930 valuetype = lua_type(L, -1); \
|
jbe@243
|
1931 if (valuetype != LUA_TNIL) { \
|
jbe@243
|
1932 luaL_argcheck(L, valuetype == LUA_TSTRING, 1, "field \"" field "\" is not a string"); \
|
jbe@243
|
1933 value = lua_tolstring(L, -1, &valuelen); \
|
jbe@252
|
1934 if (func(tlsconf->config, (void *)value, valuelen)) { \
|
jbe@243
|
1935 lua_pushnil(L); \
|
jbe@243
|
1936 lua_pushliteral(L, "Could not set " name); \
|
jbe@243
|
1937 return 2; \
|
jbe@243
|
1938 } \
|
jbe@243
|
1939 } \
|
jbe@243
|
1940 lua_pop(L, 1);
|
jbe@243
|
1941
|
jbe@243
|
1942 static int moonbr_io_tlsconf(lua_State *L) {
|
jbe@252
|
1943 moonbr_io_tlsconf_t *tlsconf;
|
jbe@243
|
1944 int valuetype;
|
jbe@243
|
1945 const char *value;
|
jbe@243
|
1946 size_t valuelen;
|
jbe@243
|
1947 luaL_checktype(L, 1, LUA_TTABLE);
|
jbe@252
|
1948 tlsconf = lua_newuserdata(L, sizeof(moonbr_io_tlsconf_t));
|
jbe@252
|
1949 tlsconf->config = tls_config_new();
|
jbe@252
|
1950 if (!tlsconf->config) {
|
jbe@243
|
1951 return luaL_error(L, "Could not allocate memory for TLS configuration");
|
jbe@243
|
1952 }
|
jbe@243
|
1953 luaL_setmetatable(L, MOONBR_IO_TLSCONF_MT_REGKEY);
|
jbe@245
|
1954 lua_getfield(L, 1, "mode");
|
jbe@252
|
1955 value = lua_tostring(L, -1);
|
jbe@252
|
1956 if (value && !strcmp(value, "server")) tlsconf->server = 1;
|
jbe@252
|
1957 else if (value && !strcmp(value, "client")) tlsconf->server = 0;
|
jbe@252
|
1958 else luaL_argcheck(L, 0, 1, "field \"mode\" must be set to \"server\" or \"client\"");
|
jbe@245
|
1959 lua_pop(L, 1);
|
jbe@243
|
1960 moonbr_io_tlsconf_string("CA file", "ca_file", tls_config_set_ca_file);
|
jbe@243
|
1961 moonbr_io_tlsconf_string("CA path", "ca_path", tls_config_set_ca_path);
|
jbe@243
|
1962 moonbr_io_tlsconf_binary("CA", "ca_mem", tls_config_set_ca_mem);
|
jbe@243
|
1963 moonbr_io_tlsconf_string("certificate file", "cert_file", tls_config_set_cert_file);
|
jbe@243
|
1964 moonbr_io_tlsconf_binary("certificate", "cert_mem", tls_config_set_cert_mem);
|
jbe@243
|
1965 moonbr_io_tlsconf_string("key file", "key_file", tls_config_set_key_file);
|
jbe@243
|
1966 moonbr_io_tlsconf_binary("key", "key_mem", tls_config_set_key_mem);
|
jbe@245
|
1967 #if LUA_VERSION_NUM >= 503
|
jbe@245
|
1968 valuetype = lua_getfield(L, 1, "verify_client");
|
jbe@245
|
1969 #else
|
jbe@244
|
1970 lua_getfield(L, 1, "verify_client");
|
jbe@245
|
1971 #endif
|
jbe@244
|
1972 if (lua_toboolean(L, -1)) {
|
jbe@252
|
1973 value = lua_tostring(L, -1);
|
jbe@252
|
1974 if (value && !strcmp(value, "required")) {
|
jbe@252
|
1975 tls_config_verify_client(tlsconf->config);
|
jbe@252
|
1976 } else if (value && !strcmp(value, "optional")) {
|
jbe@252
|
1977 tls_config_verify_client_optional(tlsconf->config);
|
jbe@244
|
1978 } else {
|
jbe@244
|
1979 luaL_argcheck(L, 0, 1, "field \"verify_client\" must be set to \"required\", \"optional\", or be false or nil");
|
jbe@244
|
1980 }
|
jbe@244
|
1981 }
|
jbe@244
|
1982 lua_pop(L, 1);
|
jbe@254
|
1983 // TODO: configurable legacy support
|
jbe@254
|
1984 // tls_config_set_protocols(tlsconf->config, TLS_PROTOCOLS_ALL);
|
jbe@254
|
1985 // tls_config_set_ciphers(tlsconf->config, "legacy");
|
jbe@243
|
1986 return 1;
|
jbe@243
|
1987 }
|
jbe@243
|
1988
|
jbe@252
|
1989 static int moonbr_io_tlsconfgc(lua_State *L) {
|
jbe@252
|
1990 moonbr_io_tlsconf_t *tlsconf;
|
jbe@243
|
1991 tlsconf = luaL_checkudata(L, 1, MOONBR_IO_TLSCONF_MT_REGKEY);
|
jbe@252
|
1992 if (tlsconf->config) tls_config_free(tlsconf->config);
|
jbe@252
|
1993 tlsconf->config = NULL;
|
jbe@243
|
1994 return 0;
|
jbe@243
|
1995 }
|
jbe@243
|
1996
|
jbe@246
|
1997 static int moonbr_io_starttls(lua_State *L) {
|
jbe@246
|
1998 moonbr_io_handle_t *handle;
|
jbe@252
|
1999 moonbr_io_tlsconf_t *tlsconf;
|
jbe@246
|
2000 const char *servername;
|
jbe@246
|
2001 struct tls *tls, *tls2;
|
jbe@246
|
2002 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@246
|
2003 if (lua_type(L, 2) == LUA_TTABLE) {
|
jbe@246
|
2004 lua_pushcfunction(L, moonbr_io_tlsconf);
|
jbe@246
|
2005 lua_pushvalue(L, 2);
|
jbe@246
|
2006 lua_call(L, 1, 2);
|
jbe@246
|
2007 if (lua_isnil(L, -2)) return 2;
|
jbe@246
|
2008 lua_pop(L, 1);
|
jbe@246
|
2009 lua_replace(L, 2);
|
jbe@246
|
2010 }
|
jbe@246
|
2011 tlsconf = luaL_checkudata(L, 2, MOONBR_IO_TLSCONF_MT_REGKEY);
|
jbe@246
|
2012 if (handle->closed) return luaL_error(L, "Attempt to start TLS on a closed I/O handle");
|
jbe@246
|
2013 if (handle->finished) return luaL_error(L, "Attempt to start TLS on a finished I/O handle");
|
jbe@247
|
2014 if (handle->tls) return luaL_error(L, "Attempt to start TLS twice");
|
jbe@246
|
2015 if (handle->readbufin || handle->writebufin) {
|
jbe@246
|
2016 return luaL_error(L, "Attempt to start TLS on an I/O handle with non-empty buffers");
|
jbe@246
|
2017 }
|
jbe@252
|
2018 if (tlsconf->server) tls = tls_server();
|
jbe@252
|
2019 else {
|
jbe@246
|
2020 servername = luaL_checkstring(L, 3);
|
jbe@246
|
2021 tls = tls_client();
|
jbe@246
|
2022 }
|
jbe@246
|
2023 if (!tls) {
|
jbe@246
|
2024 return luaL_error(L, "Could not allocate memory for TLS context");
|
jbe@246
|
2025 }
|
jbe@252
|
2026 if (tls_configure(tls, tlsconf->config)) goto moonbr_io_starttls_error;
|
jbe@252
|
2027 if (tlsconf->server) {
|
jbe@246
|
2028 if (tls_accept_socket(tls, &tls2, handle->fd)) goto moonbr_io_starttls_error;
|
jbe@246
|
2029 handle->servertls = tls;
|
jbe@246
|
2030 handle->tls = tls2;
|
jbe@246
|
2031 } else {
|
jbe@246
|
2032 if (tls_connect_socket(tls, handle->fd, servername)) goto moonbr_io_starttls_error;
|
jbe@246
|
2033 handle->tls = tls;
|
jbe@246
|
2034 }
|
jbe@246
|
2035 lua_settop(L, 1);
|
jbe@246
|
2036 return 1;
|
jbe@246
|
2037 moonbr_io_starttls_error:
|
jbe@246
|
2038 lua_pushnil(L);
|
jbe@246
|
2039 lua_pushstring(L, tls_error(tls));
|
jbe@246
|
2040 tls_free(tls);
|
jbe@246
|
2041 return 2;
|
jbe@246
|
2042 }
|
jbe@246
|
2043
|
jbe@258
|
2044 #endif /* MOONBR_IO_USE_TLS */
|
jbe@243
|
2045
|
jbe@79
|
2046 static const struct luaL_Reg moonbr_io_handle_methods[] = {
|
jbe@85
|
2047 {"read", moonbr_io_read},
|
jbe@85
|
2048 {"read_nb", moonbr_io_read_nb},
|
jbe@140
|
2049 {"read_call", moonbr_io_read_call},
|
jbe@140
|
2050 {"read_yield", moonbr_io_read_yield},
|
jbe@86
|
2051 {"drain", moonbr_io_drain},
|
jbe@86
|
2052 {"drain_nb", moonbr_io_drain_nb},
|
jbe@144
|
2053 {"drain_call", moonbr_io_drain_call},
|
jbe@144
|
2054 {"drain_yield", moonbr_io_drain_yield},
|
jbe@80
|
2055 {"write", moonbr_io_write},
|
jbe@81
|
2056 {"write_nb", moonbr_io_write_nb},
|
jbe@145
|
2057 {"write_call", moonbr_io_write_call},
|
jbe@145
|
2058 {"write_yield", moonbr_io_write_yield},
|
jbe@80
|
2059 {"flush", moonbr_io_flush},
|
jbe@81
|
2060 {"flush_nb", moonbr_io_flush_nb},
|
jbe@145
|
2061 {"flush_call", moonbr_io_flush_call},
|
jbe@145
|
2062 {"flush_yield", moonbr_io_flush_yield},
|
jbe@88
|
2063 {"finish", moonbr_io_finish},
|
jbe@87
|
2064 {"close", moonbr_io_close},
|
jbe@85
|
2065 {"reset", moonbr_io_reset},
|
jbe@246
|
2066 #ifdef MOONBR_IO_USE_TLS
|
jbe@246
|
2067 {"starttls", moonbr_io_starttls},
|
jbe@246
|
2068 #endif
|
jbe@79
|
2069 {NULL, NULL}
|
jbe@79
|
2070 };
|
jbe@79
|
2071
|
jbe@79
|
2072 static const struct luaL_Reg moonbr_io_handle_metamethods[] = {
|
jbe@79
|
2073 {"__index", moonbr_io_handleindex},
|
jbe@79
|
2074 {"__newindex", moonbr_io_handlenewindex},
|
jbe@108
|
2075 {"__gc", moonbr_io_handlegc},
|
jbe@108
|
2076 {NULL, NULL}
|
jbe@108
|
2077 };
|
jbe@108
|
2078
|
jbe@108
|
2079 static const struct luaL_Reg moonbr_io_listener_methods[] = {
|
jbe@108
|
2080 {"accept", moonbr_io_accept},
|
jbe@108
|
2081 {"accept_nb", moonbr_io_accept_nb},
|
jbe@108
|
2082 {"close", moonbr_io_unlisten},
|
jbe@108
|
2083 {NULL, NULL}
|
jbe@108
|
2084 };
|
jbe@108
|
2085
|
jbe@108
|
2086 static const struct luaL_Reg moonbr_io_listener_metamethods[] = {
|
jbe@108
|
2087 {"__gc", moonbr_io_listenergc},
|
jbe@79
|
2088 {NULL, NULL}
|
jbe@79
|
2089 };
|
jbe@79
|
2090
|
jbe@205
|
2091 static const struct luaL_Reg moonbr_io_child_methods[] = {
|
jbe@205
|
2092 {"kill", moonbr_io_kill},
|
jbe@205
|
2093 {"wait", moonbr_io_wait},
|
jbe@205
|
2094 {"wait_nb", moonbr_io_wait_nb},
|
jbe@205
|
2095 {"wait_call", moonbr_io_wait_call},
|
jbe@205
|
2096 {"wait_yield", moonbr_io_wait_yield},
|
jbe@205
|
2097 {NULL, NULL}
|
jbe@205
|
2098 };
|
jbe@205
|
2099
|
jbe@205
|
2100 static const struct luaL_Reg moonbr_io_child_metamethods[] = {
|
jbe@205
|
2101 {"__index", moonbr_io_childindex},
|
jbe@205
|
2102 {"__newindex", moonbr_io_childnewindex},
|
jbe@205
|
2103 {"__gc", moonbr_io_childgc},
|
jbe@205
|
2104 {NULL, NULL}
|
jbe@205
|
2105 };
|
jbe@205
|
2106
|
jbe@79
|
2107 static const struct luaL_Reg moonbr_io_module_funcs[] = {
|
jbe@111
|
2108 {"localconnect", moonbr_io_localconnect},
|
jbe@111
|
2109 {"localconnect_nb", moonbr_io_localconnect_nb},
|
jbe@98
|
2110 {"tcpconnect", moonbr_io_tcpconnect},
|
jbe@99
|
2111 {"tcpconnect_nb", moonbr_io_tcpconnect_nb},
|
jbe@112
|
2112 {"locallisten", moonbr_io_locallisten},
|
jbe@108
|
2113 {"tcplisten", moonbr_io_tcplisten},
|
jbe@205
|
2114 {"exec", moonbr_io_exec},
|
jbe@288
|
2115 {"catch_sigterm", moonbr_io_catch_sigterm},
|
jbe@266
|
2116 {"getpid", moonbr_io_getpid},
|
jbe@106
|
2117 {"poll", moonbr_io_poll},
|
jbe@115
|
2118 {"timeref", moonbr_io_timeref},
|
jbe@243
|
2119 #ifdef MOONBR_IO_USE_TLS
|
jbe@243
|
2120 {"tlsconf", moonbr_io_tlsconf},
|
jbe@243
|
2121 #endif
|
jbe@79
|
2122 {NULL, NULL}
|
jbe@79
|
2123 };
|
jbe@79
|
2124
|
jbe@243
|
2125 #ifdef MOONBR_IO_USE_TLS
|
jbe@258
|
2126
|
jbe@243
|
2127 static const struct luaL_Reg moonbr_io_tlsconf_metamethods[] = {
|
jbe@243
|
2128 {"__gc", moonbr_io_tlsconfgc},
|
jbe@243
|
2129 {NULL, NULL}
|
jbe@243
|
2130 };
|
jbe@258
|
2131
|
jbe@258
|
2132 #endif /* MOONBR_IO_USE_TLS */
|
jbe@243
|
2133
|
jbe@79
|
2134 int luaopen_moonbridge_io(lua_State *L) {
|
jbe@79
|
2135
|
jbe@113
|
2136 signal(SIGPIPE, SIG_IGN); /* generate I/O errors instead of signal 13 */
|
jbe@113
|
2137
|
jbe@80
|
2138 lua_newtable(L); // module
|
jbe@313
|
2139 lua_pushvalue(L, -1);
|
jbe@313
|
2140 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_MODULE_REGKEY);
|
jbe@80
|
2141
|
jbe@79
|
2142 lua_newtable(L); // public metatable
|
jbe@79
|
2143 lua_newtable(L); // handle methods
|
jbe@79
|
2144 luaL_setfuncs(L, moonbr_io_handle_methods, 0);
|
jbe@80
|
2145 lua_pushvalue(L, -1);
|
jbe@146
|
2146 lua_setfield(L, -4, "handle_pt");
|
jbe@79
|
2147 lua_setfield(L, -2, "__index");
|
jbe@79
|
2148 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
|
jbe@79
|
2149
|
jbe@79
|
2150 lua_newtable(L); // handle metatable
|
jbe@79
|
2151 luaL_setfuncs(L, moonbr_io_handle_metamethods, 0);
|
jbe@146
|
2152 lua_pushvalue(L, -1);
|
jbe@146
|
2153 lua_setfield(L, -3, "handle_mt");
|
jbe@79
|
2154 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
2155
|
jbe@108
|
2156 lua_newtable(L); // listener metatable
|
jbe@108
|
2157 luaL_setfuncs(L, moonbr_io_listener_metamethods, 0);
|
jbe@108
|
2158 lua_newtable(L); // listener methods
|
jbe@108
|
2159 luaL_setfuncs(L, moonbr_io_listener_methods, 0);
|
jbe@108
|
2160 lua_pushvalue(L, -1);
|
jbe@146
|
2161 lua_setfield(L, -4, "listener_pt");
|
jbe@108
|
2162 lua_setfield(L, -2, "__index");
|
jbe@146
|
2163 lua_pushvalue(L, -1);
|
jbe@146
|
2164 lua_setfield(L, -3, "listener_mt");
|
jbe@108
|
2165 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
2166
|
jbe@205
|
2167 lua_newtable(L); // child methods
|
jbe@205
|
2168 luaL_setfuncs(L, moonbr_io_child_methods, 0);
|
jbe@205
|
2169 lua_pushvalue(L, -1);
|
jbe@205
|
2170 lua_setfield(L, -3, "child_pt");
|
jbe@205
|
2171 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_CHILD_PT_REGKEY);
|
jbe@205
|
2172 lua_newtable(L); // child metatable
|
jbe@205
|
2173 luaL_setfuncs(L, moonbr_io_child_metamethods, 0);
|
jbe@205
|
2174 lua_pushvalue(L, -1);
|
jbe@205
|
2175 lua_setfield(L, -3, "child_mt");
|
jbe@205
|
2176 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
2177
|
jbe@243
|
2178 #ifdef MOONBR_IO_USE_TLS
|
jbe@243
|
2179 if(tls_init()) {
|
jbe@243
|
2180 return luaL_error(L, "Could not initialize TLS library");
|
jbe@243
|
2181 }
|
jbe@243
|
2182 lua_newtable(L); // tlsconf metatable
|
jbe@243
|
2183 luaL_setfuncs(L, moonbr_io_tlsconf_metamethods, 0);
|
jbe@243
|
2184 lua_pushvalue(L, -1);
|
jbe@243
|
2185 lua_setfield(L, -3, "tlsconf_mt");
|
jbe@243
|
2186 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_TLSCONF_MT_REGKEY);
|
jbe@243
|
2187 #endif
|
jbe@243
|
2188
|
jbe@205
|
2189 moonbr_io_pushhandle(L, 0);
|
jbe@205
|
2190 lua_setfield(L, -2, "stdin");
|
jbe@205
|
2191 moonbr_io_pushhandle(L, 1);
|
jbe@205
|
2192 lua_setfield(L, -2, "stdout");
|
jbe@205
|
2193 moonbr_io_pushhandle(L, 2);
|
jbe@205
|
2194 lua_setfield(L, -2, "stderr");
|
jbe@270
|
2195
|
jbe@79
|
2196 luaL_setfuncs(L, moonbr_io_module_funcs, 0);
|
jbe@79
|
2197 return 1;
|
jbe@79
|
2198
|
jbe@79
|
2199 }
|
jbe@79
|
2200
|