Commit | Line | Data |
---|---|---|
d3372da9 | 1 | /* |
2 | * Dolda Connect - Modular multiuser Direct Connect-style client | |
302a2600 | 3 | * Copyright (C) 2004 Fredrik Tolf <fredrik@dolda2000.com> |
d3372da9 | 4 | * |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | */ | |
19 | ||
20 | /* | |
21 | * Note: This code is still ugly, since I copied it almost verbatim | |
22 | * from the daemon's parser. It would need serious cleanups, but at | |
23 | * least it works for now. | |
24 | */ | |
25 | ||
26 | #ifdef HAVE_CONFIG_H | |
27 | #include <config.h> | |
28 | #endif | |
29 | #include <stdio.h> | |
30 | #include <unistd.h> | |
31 | #include <stdlib.h> | |
32 | #include <string.h> | |
33 | #include <iconv.h> | |
34 | #include <wchar.h> | |
35 | #include <wctype.h> | |
36 | #include <errno.h> | |
37 | #include <stdarg.h> | |
38 | #include <sys/socket.h> | |
39 | #include <netinet/in.h> | |
40 | #include <arpa/inet.h> | |
12383d48 | 41 | #include <sys/un.h> |
d3372da9 | 42 | #include <fcntl.h> |
43 | #include <netdb.h> | |
44 | #include <sys/poll.h> | |
12383d48 | 45 | #include <pwd.h> |
d3372da9 | 46 | #ifdef HAVE_RESOLVER |
47 | #include <arpa/nameser.h> | |
48 | #include <resolv.h> | |
49 | #endif | |
50 | ||
51 | #include <doldaconnect/uilib.h> | |
31c700d1 | 52 | #include <utils.h> |
d3372da9 | 53 | |
4d487bad | 54 | #define DOLCON_SRV_NAME "_dolcon._tcp" |
55 | ||
d3372da9 | 56 | #define RESP_END -1 |
57 | #define RESP_DSC 0 | |
58 | #define RESP_STR 1 | |
59 | #define RESP_INT 2 | |
60 | #define RESP_FLOAT 3 | |
8f623b36 | 61 | #define RESP_LNUM 4 |
d3372da9 | 62 | |
63 | struct respclass | |
64 | { | |
65 | struct respclass *next; | |
66 | int code; | |
67 | int nwords; | |
68 | int *wordt; | |
69 | }; | |
70 | ||
71 | struct command | |
72 | { | |
73 | struct command *next; | |
74 | wchar_t *name; | |
75 | struct respclass *classes; | |
76 | }; | |
77 | ||
78 | struct qcmd | |
79 | { | |
80 | struct qcmd *next; | |
81 | struct command *cmd; | |
82 | int tag; | |
83 | char *buf; | |
84 | size_t buflen; | |
85 | int (*callback)(struct dc_response *resp); | |
86 | void *data; | |
87 | }; | |
88 | ||
89 | void dc_uimisc_disconnected(void); | |
90 | ||
91 | /* The first command must be the nameless connect command and second | |
92 | * the notification command. */ | |
93 | static struct command *commands = NULL; | |
94 | static struct qcmd *queue = NULL, *queueend = NULL; | |
95 | static struct dc_response *respqueue = NULL, *respqueueend = NULL; | |
96 | static int state = -1; | |
97 | static int fd = -1; | |
98 | static iconv_t ichandle; | |
99 | static int resetreader = 1; | |
d3372da9 | 100 | static struct addrinfo *hostlist = NULL, *curhost = NULL; |
9e5f2b29 | 101 | struct { |
102 | char *hostname; | |
103 | int family; | |
104 | int sentcreds; | |
105 | } servinfo; | |
e4b88cc0 | 106 | char *dc_srv_local; |
d3372da9 | 107 | |
0538f877 | 108 | static void message(int bits, char *format, ...) |
109 | { | |
110 | static int hb = -1; | |
111 | char *v; | |
112 | va_list args; | |
113 | ||
114 | if(hb == -1) | |
115 | { | |
116 | hb = 0; | |
117 | if((v = getenv("LIBDCUI_MSG")) != NULL) | |
118 | hb = strtol(v, NULL, 0) & 65535; | |
119 | } | |
120 | if(hb & bits) | |
121 | { | |
122 | va_start(args, format); | |
123 | vfprintf(stderr, format, args); | |
124 | va_end(args); | |
125 | } | |
126 | } | |
127 | ||
128 | static char *formataddress(struct sockaddr *arg, socklen_t arglen) | |
129 | { | |
130 | struct sockaddr_in *ipv4; | |
131 | #ifdef HAVE_IPV6 | |
132 | struct sockaddr_in6 *ipv6; | |
133 | #endif | |
134 | static char *ret = NULL; | |
135 | char buf[1024]; | |
136 | ||
137 | if(ret != NULL) | |
138 | free(ret); | |
139 | ret = NULL; | |
140 | switch(arg->sa_family) | |
141 | { | |
142 | case AF_UNIX: | |
143 | ret = sprintf2("Unix socket (%s)", ((struct sockaddr_un *)arg)->sun_path); | |
144 | break; | |
145 | case AF_INET: | |
146 | ipv4 = (struct sockaddr_in *)arg; | |
147 | if(inet_ntop(AF_INET, &ipv4->sin_addr, buf, sizeof(buf)) == NULL) | |
148 | return(NULL); | |
149 | ret = sprintf2("%s:%i", buf, (int)ntohs(ipv4->sin_port)); | |
150 | break; | |
151 | #ifdef HAVE_IPV6 | |
152 | case AF_INET6: | |
153 | ipv6 = (struct sockaddr_in6 *)arg; | |
154 | if(inet_ntop(AF_INET6, &ipv6->sin6_addr, buf, sizeof(buf)) == NULL) | |
155 | return(NULL); | |
156 | ret = sprintf2("[%s]:%i", buf, (int)ntohs(ipv6->sin6_port)); | |
157 | break; | |
158 | #endif | |
159 | default: | |
160 | errno = EPFNOSUPPORT; | |
161 | break; | |
162 | } | |
163 | return(ret); | |
164 | } | |
d3372da9 | 165 | static struct dc_response *makeresp(void) |
166 | { | |
167 | struct dc_response *new; | |
168 | ||
169 | new = smalloc(sizeof(*new)); | |
170 | new->next = NULL; | |
171 | new->prev = NULL; | |
172 | new->code = 0; | |
173 | new->cmdname = NULL; | |
174 | new->rlines = NULL; | |
175 | new->linessize = 0; | |
176 | new->numlines = 0; | |
177 | new->curline = 0; | |
178 | new->data = NULL; | |
179 | return(new); | |
180 | } | |
181 | ||
182 | static void freeqcmd(struct qcmd *qcmd) | |
183 | { | |
184 | if(qcmd->buf != NULL) | |
185 | free(qcmd->buf); | |
186 | free(qcmd); | |
187 | } | |
188 | ||
189 | static void unlinkqueue(void) | |
190 | { | |
191 | struct qcmd *qcmd; | |
192 | ||
193 | if((qcmd = queue) == NULL) | |
194 | return; | |
195 | queue = qcmd->next; | |
196 | if(queue == NULL) | |
197 | queueend = NULL; | |
198 | freeqcmd(qcmd); | |
199 | } | |
200 | ||
201 | static struct qcmd *makeqcmd(wchar_t *name) | |
202 | { | |
203 | struct qcmd *new; | |
204 | struct command *cmd; | |
205 | static int tag = 0; | |
206 | ||
207 | if(name == NULL) | |
208 | { | |
209 | cmd = commands; | |
210 | } else { | |
211 | for(cmd = commands; cmd != NULL; cmd = cmd->next) | |
212 | { | |
213 | if((cmd->name != NULL) && !wcscmp(cmd->name, name)) | |
214 | break; | |
215 | } | |
ee9bb4f3 FT |
216 | if(cmd == NULL) { |
217 | errno = ENOSYS; /* Bleh */ | |
d3372da9 | 218 | return(NULL); |
ee9bb4f3 | 219 | } |
d3372da9 | 220 | } |
221 | new = smalloc(sizeof(*new)); | |
222 | new->tag = tag++; | |
223 | new->cmd = cmd; | |
224 | new->buf = NULL; | |
225 | new->buflen = 0; | |
226 | new->callback = NULL; | |
227 | new->next = NULL; | |
228 | new->data = NULL; | |
229 | if(queueend == NULL) | |
230 | { | |
231 | queue = queueend = new; | |
232 | } else { | |
233 | queueend->next = new; | |
234 | queueend = new; | |
235 | } | |
236 | return(new); | |
237 | } | |
238 | ||
239 | static wchar_t *quoteword(wchar_t *word) | |
240 | { | |
241 | wchar_t *wp, *buf, *bp; | |
242 | int dq, numbs, numc; | |
243 | ||
244 | dq = 0; | |
245 | numbs = 0; | |
246 | numc = 0; | |
247 | if(*word == L'\0') | |
248 | { | |
249 | dq = 1; | |
250 | } else { | |
251 | for(wp = word; *wp != L'\0'; wp++) | |
252 | { | |
253 | if(!dq && iswspace(*wp)) | |
254 | dq = 1; | |
255 | if((*wp == L'\\') || (*wp == L'\"')) | |
256 | numbs++; | |
257 | numc++; | |
258 | } | |
259 | } | |
260 | if(!dq && !numbs) | |
261 | return(NULL); | |
262 | bp = buf = smalloc(sizeof(wchar_t) * (numc + numbs + (dq?2:0) + 1)); | |
263 | if(dq) | |
264 | *(bp++) = L'\"'; | |
265 | for(wp = word; *wp != L'\0'; wp++) | |
266 | { | |
267 | if((*wp == L'\\') || (*wp == L'\"')) | |
268 | *(bp++) = L'\\'; | |
269 | *(bp++) = *wp; | |
270 | } | |
271 | if(dq) | |
272 | *(bp++) = L'\"'; | |
273 | *(bp++) = L'\0'; | |
274 | return(buf); | |
275 | } | |
276 | ||
277 | static struct command *makecmd(wchar_t *name) | |
278 | { | |
279 | struct command *new; | |
280 | ||
281 | new = smalloc(sizeof(*new)); | |
282 | new->name = name; | |
283 | new->classes = NULL; | |
284 | new->next = commands; | |
285 | commands = new; | |
286 | return(new); | |
287 | } | |
288 | ||
289 | static struct respclass *addresp(struct command *cmd, int code, ...) | |
290 | { | |
291 | struct respclass *new; | |
292 | int i; | |
293 | int resps[128]; | |
294 | va_list args; | |
295 | ||
296 | va_start(args, code); | |
297 | i = 0; | |
298 | while((resps[i++] = va_arg(args, int)) != RESP_END); | |
299 | i--; | |
300 | va_end(args); | |
301 | new = smalloc(sizeof(*new)); | |
302 | new->code = code; | |
303 | new->nwords = i; | |
304 | if(i > 0) | |
305 | { | |
306 | new->wordt = smalloc(sizeof(int) * i); | |
307 | memcpy(new->wordt, resps, sizeof(int) * i); | |
308 | } else { | |
309 | new->wordt = NULL; | |
310 | } | |
311 | new->next = cmd->classes; | |
312 | cmd->classes = new; | |
313 | return(new); | |
314 | } | |
315 | ||
316 | #include "initcmds.h" | |
317 | ||
318 | int dc_init(void) | |
319 | { | |
320 | if((ichandle = iconv_open("wchar_t", "utf-8")) == (iconv_t)-1) | |
321 | return(-1); | |
e4b88cc0 | 322 | dc_srv_local = sstrdup(""); |
d3372da9 | 323 | initcmds(); |
324 | return(0); | |
325 | } | |
326 | ||
327 | void dc_cleanup(void) | |
328 | { | |
329 | iconv_close(ichandle); | |
330 | } | |
331 | ||
332 | void dc_disconnect(void) | |
333 | { | |
334 | struct dc_response *resp; | |
335 | ||
336 | state = -1; | |
337 | if(fd >= 0) | |
338 | close(fd); | |
339 | fd = -1; | |
340 | while(queue != NULL) | |
341 | unlinkqueue(); | |
342 | while((resp = dc_getresp()) != NULL) | |
343 | dc_freeresp(resp); | |
344 | dc_uimisc_disconnected(); | |
9e5f2b29 | 345 | if(servinfo.hostname != NULL) |
346 | free(servinfo.hostname); | |
347 | memset(&servinfo, 0, sizeof(servinfo)); | |
d3372da9 | 348 | } |
349 | ||
350 | void dc_freeresp(struct dc_response *resp) | |
351 | { | |
352 | int i, o; | |
353 | ||
354 | for(i = 0; i < resp->numlines; i++) | |
355 | { | |
356 | for(o = 0; o < resp->rlines[i].argc; o++) | |
357 | free(resp->rlines[i].argv[o]); | |
358 | free(resp->rlines[i].argv); | |
359 | } | |
360 | free(resp->rlines); | |
361 | free(resp); | |
362 | } | |
363 | ||
364 | struct dc_response *dc_getresp(void) | |
365 | { | |
366 | struct dc_response *ret; | |
367 | ||
368 | if((ret = respqueue) == NULL) | |
369 | return(NULL); | |
370 | respqueue = ret->next; | |
371 | if(respqueue == NULL) | |
372 | respqueueend = NULL; | |
373 | else | |
374 | respqueue->prev = NULL; | |
375 | return(ret); | |
376 | } | |
377 | ||
378 | struct dc_response *dc_gettaggedresp(int tag) | |
379 | { | |
380 | struct dc_response *resp; | |
381 | ||
382 | for(resp = respqueue; resp != NULL; resp = resp->next) | |
383 | { | |
384 | if(resp->tag == tag) | |
385 | { | |
386 | if(resp->prev != NULL) | |
387 | resp->prev->next = resp->next; | |
388 | if(resp->next != NULL) | |
389 | resp->next->prev = resp->prev; | |
390 | if(resp == respqueue) | |
391 | respqueue = resp->next; | |
392 | if(resp == respqueueend) | |
393 | respqueueend = resp->prev; | |
394 | return(resp); | |
395 | } | |
396 | } | |
397 | return(NULL); | |
398 | } | |
399 | ||
400 | struct dc_response *dc_gettaggedrespsync(int tag) | |
401 | { | |
402 | struct pollfd pfd; | |
403 | struct dc_response *resp; | |
404 | ||
405 | while((resp = dc_gettaggedresp(tag)) == NULL) | |
406 | { | |
407 | pfd.fd = fd; | |
408 | pfd.events = POLLIN; | |
409 | if(dc_wantwrite()) | |
410 | pfd.events |= POLLOUT; | |
411 | if(poll(&pfd, 1, -1) < 0) | |
412 | return(NULL); | |
413 | if((pfd.revents & POLLIN) && dc_handleread()) | |
414 | return(NULL); | |
415 | if((pfd.revents & POLLOUT) && dc_handlewrite()) | |
416 | return(NULL); | |
417 | } | |
418 | return(resp); | |
419 | } | |
420 | ||
421 | int dc_wantwrite(void) | |
422 | { | |
423 | switch(state) | |
424 | { | |
425 | case 1: | |
426 | if((queue != NULL) && (queue->buflen > 0)) | |
427 | return(1); | |
428 | break; | |
429 | } | |
430 | return(0); | |
431 | } | |
432 | ||
433 | int dc_getstate(void) | |
434 | { | |
435 | return(state); | |
436 | } | |
437 | ||
438 | int dc_queuecmd(int (*callback)(struct dc_response *), void *data, ...) | |
439 | { | |
440 | struct qcmd *qcmd; | |
441 | int num, freepart; | |
442 | va_list al; | |
ccad23d3 | 443 | char *final, *sarg; |
d3372da9 | 444 | wchar_t **toks; |
445 | wchar_t *buf; | |
446 | wchar_t *part, *tpart; | |
447 | size_t bufsize, bufdata; | |
448 | ||
449 | buf = NULL; | |
450 | bufsize = bufdata = 0; | |
451 | num = 0; | |
452 | va_start(al, data); | |
453 | while((part = va_arg(al, wchar_t *)) != NULL) | |
454 | { | |
ccad23d3 | 455 | if(!wcscmp(part, L"%a")) |
d3372da9 | 456 | { |
457 | for(toks = va_arg(al, wchar_t **); *toks != NULL; toks++) | |
458 | { | |
459 | part = *toks; | |
460 | freepart = 0; | |
461 | if((tpart = quoteword(part)) != NULL) | |
462 | { | |
463 | freepart = 1; | |
464 | part = tpart; | |
465 | } | |
466 | addtobuf(buf, L' '); | |
467 | bufcat(buf, part, wcslen(part)); | |
468 | num++; | |
469 | if(freepart) | |
470 | free(part); | |
471 | } | |
472 | } else { | |
473 | if(*part == L'%') | |
474 | { | |
ccad23d3 | 475 | tpart = part + 1; |
476 | if(!wcscmp(tpart, L"i")) | |
d3372da9 | 477 | { |
ccad23d3 | 478 | freepart = 1; |
479 | part = swprintf2(L"%i", va_arg(al, int)); | |
312c174e FT |
480 | } else if(!wcscmp(tpart, L"li")) { |
481 | freepart = 1; | |
482 | part = swprintf2(L"%ji", (intmax_t)va_arg(al, dc_lnum_t)); | |
ccad23d3 | 483 | } else if(!wcscmp(tpart, L"s")) { |
484 | freepart = 1; | |
485 | part = icmbstowcs(sarg = va_arg(al, char *), NULL); | |
486 | if(part == NULL) | |
d3372da9 | 487 | { |
ccad23d3 | 488 | if(buf != NULL) |
489 | free(buf); | |
490 | return(-1); | |
d3372da9 | 491 | } |
ccad23d3 | 492 | } else if(!wcscmp(tpart, L"ls")) { |
493 | part = va_arg(al, wchar_t *); | |
494 | } else if(!wcscmp(tpart, L"ll")) { | |
495 | freepart = 1; | |
496 | part = swprintf2(L"%lli", va_arg(al, long long)); | |
497 | } else if(!wcscmp(tpart, L"f")) { | |
498 | freepart = 1; | |
499 | part = swprintf2(L"%f", va_arg(al, double)); | |
500 | } else if(!wcscmp(tpart, L"x")) { | |
501 | freepart = 1; | |
502 | part = swprintf2(L"%x", va_arg(al, int)); | |
503 | } else { | |
504 | if(buf != NULL) | |
505 | free(buf); | |
ee9bb4f3 | 506 | errno = EINVAL; |
ccad23d3 | 507 | return(-1); |
d3372da9 | 508 | } |
d3372da9 | 509 | } else { |
510 | freepart = 0; | |
511 | } | |
512 | if((tpart = quoteword(part)) != NULL) | |
513 | { | |
514 | if(freepart) | |
515 | free(part); | |
516 | part = tpart; | |
517 | freepart = 1; | |
518 | } | |
519 | if(num > 0) | |
520 | addtobuf(buf, L' '); | |
521 | if(num == 0) | |
522 | { | |
523 | if((qcmd = makeqcmd(part)) == NULL) | |
524 | { | |
525 | if(freepart) | |
526 | free(part); | |
527 | if(buf != NULL) | |
528 | free(buf); | |
529 | return(-1); | |
530 | } else { | |
531 | qcmd->callback = callback; | |
532 | qcmd->data = data; | |
533 | } | |
534 | } | |
535 | bufcat(buf, part, wcslen(part)); | |
536 | num++; | |
537 | if(freepart) | |
538 | free(part); | |
539 | } | |
540 | } | |
541 | bufcat(buf, L"\r\n\0", 3); | |
542 | if((final = icwcstombs(buf, "utf-8")) == NULL) | |
543 | { | |
544 | free(buf); | |
545 | return(-1); | |
546 | } | |
547 | va_end(al); | |
548 | free(buf); | |
549 | qcmd->buf = final; | |
550 | qcmd->buflen = strlen(final); | |
551 | return(qcmd->tag); | |
552 | } | |
553 | ||
554 | int dc_handleread(void) | |
555 | { | |
556 | int ret, done; | |
557 | char *p1, *p2; | |
558 | size_t len; | |
26d72b0d | 559 | socklen_t optlen; |
d3372da9 | 560 | int errnobak; |
561 | /* Ewww... this really is soo ugly. I need to clean this up some day. */ | |
562 | static int pstate = 0; | |
563 | static char inbuf[128]; | |
564 | static size_t inbufdata = 0; | |
565 | static wchar_t *cbuf = NULL; | |
566 | static size_t cbufsize = 0, cbufdata = 0; | |
567 | static wchar_t *pptr = NULL; | |
568 | static wchar_t **argv = NULL; | |
26d72b0d | 569 | static int argc = 0; |
570 | static size_t args = 0; | |
d3372da9 | 571 | static wchar_t *cw = NULL; |
572 | static size_t cwsize = 0, cwdata = 0; | |
573 | static struct dc_response *curresp = NULL; | |
574 | static int cont = 0; | |
575 | static int unlink = 0; | |
576 | ||
577 | switch(state) | |
578 | { | |
579 | case -1: | |
580 | return(-1); | |
581 | case 0: | |
26d72b0d | 582 | optlen = sizeof(ret); |
583 | getsockopt(fd, SOL_SOCKET, SO_ERROR, &ret, &optlen); | |
d3372da9 | 584 | if(ret) |
585 | { | |
586 | int newfd; | |
0538f877 | 587 | |
588 | message(2, "could not connect to %s: %s\n", formataddress(curhost->ai_addr, curhost->ai_addrlen), strerror(ret)); | |
d3372da9 | 589 | for(curhost = curhost->ai_next; curhost != NULL; curhost = curhost->ai_next) |
590 | { | |
591 | if((newfd = socket(curhost->ai_family, curhost->ai_socktype, curhost->ai_protocol)) < 0) | |
592 | { | |
593 | errnobak = errno; | |
594 | dc_disconnect(); | |
595 | errno = errnobak; | |
596 | return(-1); | |
597 | } | |
598 | dup2(newfd, fd); | |
599 | close(newfd); | |
600 | fcntl(fd, F_SETFL, fcntl(fd, F_GETFL) | O_NONBLOCK); | |
0538f877 | 601 | message(4, "connecting to %s\n", formataddress(curhost->ai_addr, curhost->ai_addrlen)); |
12383d48 | 602 | if(connect(fd, (struct sockaddr *)curhost->ai_addr, curhost->ai_addrlen)) |
d3372da9 | 603 | { |
604 | if(errno == EINPROGRESS) | |
605 | return(0); | |
0538f877 | 606 | message(2, "could not connect to %s: %s\n", formataddress(curhost->ai_addr, curhost->ai_addrlen), strerror(ret)); |
d3372da9 | 607 | } else { |
608 | break; | |
609 | } | |
610 | } | |
611 | if(curhost == NULL) | |
612 | { | |
613 | dc_disconnect(); | |
614 | errno = ret; | |
615 | return(-1); | |
616 | } | |
617 | } | |
12383d48 | 618 | if(curhost->ai_canonname != NULL) |
9e5f2b29 | 619 | servinfo.hostname = sstrdup(curhost->ai_canonname); |
620 | servinfo.family = curhost->ai_family; | |
d3372da9 | 621 | state = 1; |
622 | resetreader = 1; | |
623 | break; | |
624 | case 1: | |
625 | if(resetreader) | |
626 | { | |
627 | inbufdata = 0; | |
628 | cbufdata = 0; | |
629 | pptr = NULL; | |
630 | pstate = 0; | |
631 | resetreader = 0; | |
632 | cont = 0; | |
633 | if(curresp != NULL) | |
634 | dc_freeresp(curresp); | |
635 | curresp = NULL; | |
636 | } | |
637 | if(inbufdata == 128) | |
638 | inbufdata = 0; | |
639 | ret = read(fd, inbuf + inbufdata, 128 - inbufdata); | |
640 | if(ret < 0) | |
641 | { | |
642 | if((errno == EAGAIN) || (errno == EINTR)) | |
643 | return(0); | |
644 | errnobak = errno; | |
645 | dc_disconnect(); | |
646 | errno = errnobak; | |
647 | return(-1); | |
648 | } else if(ret == 0) { | |
649 | dc_disconnect(); | |
650 | errno = 0; | |
651 | return(-1); | |
652 | } | |
653 | inbufdata += ret; | |
654 | done = 0; | |
655 | while(!done) | |
656 | { | |
657 | if(cbufsize == cbufdata) | |
658 | { | |
659 | if(pptr != NULL) | |
660 | len = pptr - cbuf; | |
661 | if((cbuf = realloc(cbuf, sizeof(wchar_t) * (cbufsize += 256))) == NULL) | |
662 | { | |
663 | dc_disconnect(); | |
664 | errno = ENOMEM; | |
665 | return(-1); | |
666 | } | |
667 | if(pptr != NULL) | |
668 | pptr = cbuf + len; | |
669 | } | |
670 | p1 = inbuf; | |
671 | p2 = (char *)(cbuf + cbufdata); | |
672 | len = sizeof(wchar_t) * (cbufsize - cbufdata); | |
673 | ret = iconv(ichandle, &p1, &inbufdata, &p2, &len); | |
674 | memmove(inbuf, p1, inbufdata); | |
675 | cbufdata = cbufsize - (len / sizeof(wchar_t)); | |
676 | if(ret < 0) | |
677 | { | |
678 | switch(errno) | |
679 | { | |
680 | case EILSEQ: | |
681 | /* XXX Is this really OK? */ | |
682 | inbufdata = 0; | |
683 | done = 1; | |
684 | break; | |
685 | case EINVAL: | |
686 | done = 1; | |
687 | break; | |
688 | case E2BIG: | |
689 | break; | |
690 | default: | |
691 | errnobak = errno; | |
692 | dc_disconnect(); | |
693 | errno = errnobak; | |
694 | return(-1); | |
695 | } | |
696 | } else { | |
697 | done = 1; | |
698 | } | |
699 | } | |
700 | if(pptr == NULL) | |
701 | pptr = cbuf; | |
702 | done = 0; | |
703 | while(!done && (pptr - cbuf < cbufdata)) | |
704 | { | |
705 | switch(pstate) | |
706 | { | |
707 | case 0: | |
708 | if(iswspace(*pptr)) | |
709 | { | |
710 | if(*pptr == L'\r') | |
711 | { | |
712 | if(pptr == cbuf + cbufdata - 1) | |
713 | { | |
714 | done = 1; | |
715 | break; | |
716 | } | |
717 | if(*(++pptr) == L'\n') | |
718 | { | |
719 | if(curresp == NULL) | |
720 | { | |
721 | curresp = makeresp(); | |
722 | if((argc > 0) && ((curresp->code = wcstol(argv[0], NULL, 10)) >= 600)) | |
723 | { | |
724 | curresp->cmdname = L".notify"; | |
725 | curresp->internal = commands->next; | |
726 | curresp->tag = -1; | |
727 | unlink = 0; | |
728 | } else { | |
729 | if((curresp->cmdname = queue->cmd->name) == NULL) | |
730 | curresp->cmdname = L".connect"; | |
731 | curresp->data = queue->data; | |
732 | curresp->tag = queue->tag; | |
733 | curresp->internal = (void *)(queue->cmd); | |
734 | unlink = 1; | |
735 | } | |
736 | } | |
737 | sizebuf(&curresp->rlines, &curresp->linessize, curresp->numlines + 1, sizeof(*(curresp->rlines)), 1); | |
738 | curresp->rlines[curresp->numlines].argc = argc; | |
739 | curresp->rlines[curresp->numlines].argv = argv; | |
740 | argv = NULL; | |
741 | argc = args = 0; | |
742 | curresp->numlines++; | |
743 | if(!cont) | |
744 | { | |
745 | if((curresp->code >= 600) || (queue == NULL) || (queue->callback == NULL)) | |
746 | ret = 0; | |
747 | else | |
748 | ret = queue->callback(curresp); | |
749 | if(ret == 0) | |
750 | { | |
751 | if(respqueue == NULL) | |
752 | { | |
753 | respqueue = respqueueend = curresp; | |
754 | } else { | |
755 | curresp->next = NULL; | |
756 | curresp->prev = respqueueend; | |
757 | respqueueend->next = curresp; | |
758 | respqueueend = curresp; | |
759 | } | |
760 | } else if(ret == 1) { | |
761 | dc_freeresp(curresp); | |
762 | } | |
763 | curresp = NULL; | |
764 | if(unlink) | |
765 | unlinkqueue(); | |
766 | } | |
767 | wmemmove(cbuf, pptr, cbufdata -= (pptr - cbuf)); | |
768 | pptr = cbuf; | |
769 | } else { | |
770 | pptr++; | |
771 | } | |
772 | } else { | |
773 | pptr++; | |
774 | } | |
775 | } else { | |
776 | pstate = 1; | |
777 | cwdata = 0; | |
778 | } | |
779 | break; | |
780 | case 1: | |
781 | if(iswspace(*pptr) || ((argc == 0) && (*pptr == L'-'))) | |
782 | { | |
783 | if(argc == 0) | |
784 | { | |
785 | if(*pptr == L'-') | |
786 | { | |
787 | cont = 1; | |
788 | pptr++; | |
789 | } else { | |
790 | cont = 0; | |
791 | } | |
792 | } | |
793 | addtobuf(cw, L'\0'); | |
794 | sizebuf(&argv, &args, argc + 1, sizeof(*argv), 1); | |
795 | argv[argc++] = cw; | |
796 | cw = NULL; | |
797 | cwsize = cwdata = 0; | |
798 | pstate = 0; | |
799 | } else if(*pptr == L'\"') { | |
800 | pstate = 2; | |
801 | pptr++; | |
802 | } else if(*pptr == L'\\') { | |
803 | if(pptr == cbuf + cbufdata - 1) | |
804 | { | |
805 | done = 1; | |
806 | break; | |
807 | } | |
808 | addtobuf(cw, *(++pptr)); | |
809 | pptr++; | |
810 | } else { | |
811 | addtobuf(cw, *(pptr++)); | |
812 | } | |
813 | break; | |
814 | case 2: | |
815 | if(*pptr == L'\"') | |
816 | { | |
817 | pstate = 1; | |
818 | } else if(*pptr == L'\\') { | |
819 | addtobuf(cw, *(++pptr)); | |
820 | } else { | |
821 | addtobuf(cw, *pptr); | |
822 | } | |
823 | pptr++; | |
824 | break; | |
825 | } | |
826 | } | |
827 | break; | |
828 | } | |
829 | return(0); | |
830 | } | |
831 | ||
a8c5ada6 | 832 | #if UNIX_AUTH_STYLE == 1 |
9e5f2b29 | 833 | static void mkcreds(struct msghdr *msg) |
834 | { | |
835 | struct ucred *ucred; | |
836 | static char buf[CMSG_SPACE(sizeof(*ucred))]; | |
837 | struct cmsghdr *cmsg; | |
838 | ||
839 | msg->msg_control = buf; | |
840 | msg->msg_controllen = sizeof(buf); | |
841 | cmsg = CMSG_FIRSTHDR(msg); | |
842 | cmsg->cmsg_level = SOL_SOCKET; | |
843 | cmsg->cmsg_type = SCM_CREDENTIALS; | |
844 | cmsg->cmsg_len = CMSG_LEN(sizeof(*ucred)); | |
845 | ucred = (struct ucred *)CMSG_DATA(cmsg); | |
846 | ucred->pid = getpid(); | |
847 | ucred->uid = getuid(); | |
848 | ucred->gid = getgid(); | |
849 | msg->msg_controllen = cmsg->cmsg_len; | |
850 | } | |
a8c5ada6 | 851 | #endif |
9e5f2b29 | 852 | |
d3372da9 | 853 | int dc_handlewrite(void) |
854 | { | |
855 | int ret; | |
856 | int errnobak; | |
9e5f2b29 | 857 | struct msghdr msg; |
858 | struct iovec bufvec; | |
d3372da9 | 859 | |
860 | switch(state) | |
861 | { | |
862 | case 1: | |
863 | if(queue->buflen > 0) | |
864 | { | |
9e5f2b29 | 865 | memset(&msg, 0, sizeof(msg)); |
866 | msg.msg_iov = &bufvec; | |
867 | msg.msg_iovlen = 1; | |
868 | bufvec.iov_base = queue->buf; | |
869 | bufvec.iov_len = queue->buflen; | |
a8c5ada6 | 870 | #if UNIX_AUTH_STYLE == 1 |
9e5f2b29 | 871 | if((servinfo.family == PF_UNIX) && !servinfo.sentcreds) |
872 | { | |
873 | mkcreds(&msg); | |
874 | servinfo.sentcreds = 1; | |
875 | } | |
a8c5ada6 | 876 | #endif |
9e5f2b29 | 877 | ret = sendmsg(fd, &msg, MSG_NOSIGNAL | MSG_DONTWAIT); |
d3372da9 | 878 | if(ret < 0) |
879 | { | |
880 | if((errno == EAGAIN) || (errno == EINTR)) | |
881 | return(0); | |
882 | errnobak = errno; | |
883 | dc_disconnect(); | |
884 | errno = errnobak; | |
885 | return(-1); | |
886 | } | |
887 | if(ret > 0) | |
888 | memmove(queue->buf, queue->buf + ret, queue->buflen -= ret); | |
889 | } | |
890 | break; | |
891 | } | |
892 | return(0); | |
893 | } | |
894 | ||
895 | #ifdef HAVE_RESOLVER | |
0c58c2a0 | 896 | /* |
897 | * It kind of sucks that libresolv doesn't have any DNS parsing | |
898 | * routines. We'll have to do it manually. | |
899 | */ | |
d3372da9 | 900 | static char *readname(unsigned char *msg, unsigned char *eom, unsigned char **p) |
901 | { | |
902 | char *name, *tname; | |
903 | unsigned char *tp; | |
904 | size_t namesize, namedata, len; | |
905 | ||
906 | name = NULL; | |
907 | namesize = namedata = 0; | |
908 | while(1) | |
909 | { | |
910 | len = *((*p)++); | |
911 | if(len == 0) | |
912 | { | |
913 | addtobuf(name, 0); | |
914 | return(name); | |
915 | } else if(len == 0xc0) { | |
916 | tp = msg + *((*p)++); | |
917 | if((tname = readname(msg, eom, &tp)) == NULL) | |
918 | { | |
919 | if(name != NULL) | |
920 | free(name); | |
921 | return(NULL); | |
922 | } | |
923 | bufcat(name, tname, strlen(tname)); | |
924 | addtobuf(name, 0); | |
925 | free(tname); | |
926 | return(name); | |
927 | } else if(*p + len >= eom) { | |
928 | if(name != NULL) | |
929 | free(name); | |
930 | return(NULL); | |
931 | } | |
932 | bufcat(name, *p, len); | |
933 | *p += len; | |
934 | addtobuf(name, '.'); | |
935 | } | |
936 | } | |
937 | ||
938 | static int skipname(unsigned char *msg, unsigned char *eom, unsigned char **p) | |
939 | { | |
940 | size_t len; | |
941 | ||
942 | while(1) | |
943 | { | |
944 | len = *((*p)++); | |
945 | if(len == 0) | |
946 | { | |
947 | return(0); | |
948 | } else if(len == 0xc0) { | |
949 | (*p)++; | |
950 | return(0); | |
951 | } else if(*p + len >= eom) { | |
952 | return(-1); | |
953 | } | |
954 | *p += len; | |
955 | } | |
956 | } | |
957 | ||
958 | static int getsrvrr(char *name, char **host, int *port) | |
959 | { | |
960 | int i; | |
961 | char *name2, *rrname; | |
962 | unsigned char *eom, *p; | |
963 | unsigned char buf[1024]; | |
964 | int flags, num, class, type; | |
965 | size_t len; | |
966 | int ret; | |
967 | ||
968 | if(!(_res.options & RES_INIT)) | |
969 | { | |
970 | if(res_init() < 0) | |
971 | return(-1); | |
972 | } | |
973 | /* res_querydomain doesn't work for some reason */ | |
4d487bad | 974 | if(name[strlen(name) - 1] == '.') |
975 | name2 = sprintf2("%s.%s", DOLCON_SRV_NAME, name); | |
976 | else | |
977 | name2 = sprintf2("%s.%s.", DOLCON_SRV_NAME, name); | |
d3372da9 | 978 | ret = res_query(name2, C_IN, T_SRV, buf, sizeof(buf)); |
979 | if(ret < 0) | |
980 | { | |
981 | free(name2); | |
982 | return(-1); | |
983 | } | |
984 | eom = buf + ret; | |
0c58c2a0 | 985 | /* |
986 | * Assume transaction ID is correct. | |
987 | * | |
988 | * Flags check: FA0F masks in request/response flag, opcode, | |
989 | * truncated flag and status code, and ignores authoritativeness, | |
990 | * recursion flags and DNSSEC and reserved bits. | |
991 | */ | |
d3372da9 | 992 | flags = (buf[2] << 8) + buf[3]; |
993 | if((flags & 0xfa0f) != 0x8000) | |
994 | { | |
995 | free(name2); | |
996 | return(-1); | |
997 | } | |
0c58c2a0 | 998 | /* Skip the query entries */ |
d3372da9 | 999 | num = (buf[4] << 8) + buf[5]; |
1000 | p = buf + 12; | |
1001 | for(i = 0; i < num; i++) | |
1002 | { | |
1003 | if(skipname(buf, eom, &p)) | |
1004 | { | |
1005 | free(name2); | |
1006 | return(-1); | |
1007 | } | |
0c58c2a0 | 1008 | p += 4; /* Type and class */ |
d3372da9 | 1009 | } |
0c58c2a0 | 1010 | /* Parse answers */ |
d3372da9 | 1011 | num = (buf[6] << 8) + buf[7]; |
1012 | for(i = 0; i < num; i++) | |
1013 | { | |
1014 | if((rrname = readname(buf, eom, &p)) == NULL) | |
1015 | { | |
1016 | free(name2); | |
1017 | return(-1); | |
1018 | } | |
1019 | type = *(p++) << 8; | |
1020 | type += *(p++); | |
1021 | class = *(p++) << 8; | |
1022 | class += *(p++); | |
0c58c2a0 | 1023 | p += 4; /* TTL */ |
d3372da9 | 1024 | len = *(p++) << 8; |
1025 | len += *(p++); | |
1026 | if((class == C_IN) && (type == T_SRV) && !strcmp(rrname, name2)) | |
1027 | { | |
1028 | free(rrname); | |
1029 | free(name2); | |
1030 | /* Noone will want to have alternative DC servers, so | |
1031 | * don't care about priority and weigth */ | |
1032 | p += 4; | |
1033 | if(port == NULL) | |
1034 | { | |
1035 | p += 2; | |
1036 | } else { | |
1037 | *port = *(p++) << 8; | |
1038 | *port += *(p++); | |
1039 | } | |
1040 | if(host != NULL) | |
1041 | { | |
1042 | if((rrname = readname(buf, eom, &p)) == NULL) | |
1043 | return(-1); | |
1044 | *host = rrname; | |
1045 | } | |
1046 | return(0); | |
1047 | } | |
1048 | p += len; | |
1049 | free(rrname); | |
1050 | } | |
1051 | free(name2); | |
1052 | return(-1); | |
1053 | } | |
1054 | #else | |
1055 | static int getsrvrr(char *name, char **host, int *port) | |
1056 | { | |
c4c34936 | 1057 | errno = EOPNOTSUPP; |
d3372da9 | 1058 | return(-1); |
1059 | } | |
1060 | #endif | |
1061 | ||
12383d48 | 1062 | static struct addrinfo *gaicat(struct addrinfo *l1, struct addrinfo *l2) |
d3372da9 | 1063 | { |
12383d48 | 1064 | struct addrinfo *p; |
1065 | ||
1066 | if(l1 == NULL) | |
1067 | return(l2); | |
1068 | for(p = l1; p->ai_next != NULL; p = p->ai_next); | |
1069 | p->ai_next = l2; | |
1070 | return(l1); | |
1071 | } | |
1072 | ||
1073 | /* This isn't actually correct, in any sense of the word. It only | |
1074 | * works on systems whose getaddrinfo implementation saves the | |
1075 | * sockaddr in the same malloc block as the struct addrinfo. Those | |
1076 | * systems include at least FreeBSD and glibc-based systems, though, | |
1077 | * so it should not be any immediate threat, and it allows me to not | |
1078 | * implement a getaddrinfo wrapper. It can always be changed, should | |
1079 | * the need arise. */ | |
1080 | static struct addrinfo *unixgai(int type, char *path) | |
1081 | { | |
1082 | void *buf; | |
1083 | struct addrinfo *ai; | |
1084 | struct sockaddr_un *un; | |
1085 | ||
1086 | buf = smalloc(sizeof(*ai) + sizeof(*un)); | |
1087 | memset(buf, 0, sizeof(*ai) + sizeof(*un)); | |
1088 | ai = (struct addrinfo *)buf; | |
1089 | un = (struct sockaddr_un *)(buf + sizeof(*ai)); | |
1090 | ai->ai_flags = 0; | |
1091 | ai->ai_family = AF_UNIX; | |
1092 | ai->ai_socktype = type; | |
1093 | ai->ai_protocol = 0; | |
1094 | ai->ai_addrlen = sizeof(*un); | |
1095 | ai->ai_addr = (struct sockaddr *)un; | |
1096 | ai->ai_canonname = NULL; | |
1097 | ai->ai_next = NULL; | |
1098 | un->sun_family = PF_UNIX; | |
1099 | strncpy(un->sun_path, path, sizeof(un->sun_path) - 1); | |
1100 | return(ai); | |
1101 | } | |
1102 | ||
1103 | static struct addrinfo *resolvtcp(char *name, int port) | |
1104 | { | |
1105 | struct addrinfo hint, *ret; | |
1106 | char tmp[32]; | |
d3372da9 | 1107 | |
d3372da9 | 1108 | memset(&hint, 0, sizeof(hint)); |
1109 | hint.ai_socktype = SOCK_STREAM; | |
12383d48 | 1110 | hint.ai_flags = AI_NUMERICSERV | AI_CANONNAME; |
1111 | snprintf(tmp, sizeof(tmp), "%i", port); | |
1112 | if(!getaddrinfo(name, tmp, &hint, &ret)) | |
1113 | return(ret); | |
1114 | return(NULL); | |
1115 | } | |
1116 | ||
1117 | static struct addrinfo *resolvsrv(char *name) | |
1118 | { | |
1119 | struct addrinfo *ret; | |
1120 | char *realname; | |
1121 | int port; | |
1122 | ||
1123 | if(getsrvrr(name, &realname, &port)) | |
1124 | return(NULL); | |
0538f877 | 1125 | message(4, "SRV RR resolved: %s -> %s\n", name, realname); |
12383d48 | 1126 | ret = resolvtcp(realname, port); |
1127 | free(realname); | |
1128 | return(ret); | |
1129 | } | |
1130 | ||
1131 | static struct addrinfo *resolvhost(char *host) | |
1132 | { | |
1133 | char *p, *hp; | |
1134 | struct addrinfo *ret; | |
1135 | int port; | |
1136 | ||
1137 | if(strchr(host, '/')) | |
1138 | return(unixgai(SOCK_STREAM, host)); | |
1139 | if((strchr(host, ':') == NULL) && ((ret = resolvsrv(host)) != NULL)) | |
1140 | return(ret); | |
1141 | ret = NULL; | |
1142 | if((*host == '[') && ((p = strchr(host, ']')) != NULL)) | |
d3372da9 | 1143 | { |
12383d48 | 1144 | hp = memcpy(smalloc(p - host), host + 1, (p - host) - 1); |
1145 | hp[(p - host) - 1] = 0; | |
1146 | if(strchr(hp, ':') != NULL) { | |
1147 | port = 0; | |
1148 | if(*(++p) == ':') | |
1149 | port = atoi(p + 1); | |
1150 | if(port == 0) | |
1151 | port = 1500; | |
1152 | ret = resolvtcp(hp, port); | |
d3372da9 | 1153 | } |
12383d48 | 1154 | free(hp); |
1155 | } | |
1156 | if(ret != NULL) | |
1157 | return(ret); | |
1158 | hp = sstrdup(host); | |
1159 | port = 0; | |
1160 | if((p = strrchr(hp, ':')) != NULL) { | |
1161 | *(p++) = 0; | |
1162 | port = atoi(p); | |
1163 | } | |
1164 | if(port == 0) | |
1165 | port = 1500; | |
1166 | ret = resolvtcp(hp, port); | |
1167 | free(hp); | |
1168 | if(ret != NULL) | |
1169 | return(ret); | |
1170 | return(NULL); | |
1171 | } | |
1172 | ||
8affe2ff | 1173 | static struct addrinfo *getlocalai(void) |
12383d48 | 1174 | { |
1175 | struct addrinfo *ret; | |
1176 | struct passwd *pwd; | |
1177 | char *tmp; | |
8affe2ff | 1178 | |
12383d48 | 1179 | ret = NULL; |
1180 | if((getuid() != 0) && ((pwd = getpwuid(getuid())) != NULL)) | |
1181 | { | |
1182 | tmp = sprintf2("/tmp/doldacond-%s", pwd->pw_name); | |
8affe2ff | 1183 | ret = unixgai(SOCK_STREAM, tmp); |
12383d48 | 1184 | free(tmp); |
d3372da9 | 1185 | } |
12383d48 | 1186 | ret = gaicat(ret, unixgai(SOCK_STREAM, "/var/run/doldacond.sock")); |
8affe2ff | 1187 | return(ret); |
1188 | } | |
1189 | ||
1190 | static struct addrinfo *defaulthost(void) | |
1191 | { | |
1192 | struct addrinfo *ret; | |
1193 | char *tmp; | |
1194 | char dn[1024]; | |
1195 | ||
0538f877 | 1196 | if(((tmp = getenv("DCSERVER")) != NULL) && *tmp) { |
1197 | message(4, "using DCSERVER: %s\n", tmp); | |
8affe2ff | 1198 | return(resolvhost(tmp)); |
0538f877 | 1199 | } |
8affe2ff | 1200 | ret = getlocalai(); |
12383d48 | 1201 | ret = gaicat(ret, resolvtcp("localhost", 1500)); |
1202 | if(!getdomainname(dn, sizeof(dn)) && *dn && strcmp(dn, "(none)")) | |
1203 | ret = gaicat(ret, resolvsrv(dn)); | |
1204 | return(ret); | |
1205 | } | |
1206 | ||
e4b88cc0 | 1207 | static int dc_connectai(struct addrinfo *hosts, struct qcmd **cnctcmd) |
12383d48 | 1208 | { |
1209 | struct qcmd *qcmd; | |
1210 | int errnobak; | |
1211 | ||
1212 | if(fd >= 0) | |
1213 | dc_disconnect(); | |
1214 | state = -1; | |
d3372da9 | 1215 | if(hostlist != NULL) |
1216 | freeaddrinfo(hostlist); | |
8affe2ff | 1217 | hostlist = hosts; |
d3372da9 | 1218 | for(curhost = hostlist; curhost != NULL; curhost = curhost->ai_next) |
1219 | { | |
1220 | if((fd = socket(curhost->ai_family, curhost->ai_socktype, curhost->ai_protocol)) < 0) | |
1221 | { | |
1222 | errnobak = errno; | |
e4b88cc0 | 1223 | freeaddrinfo(hostlist); |
1224 | hostlist = NULL; | |
d3372da9 | 1225 | errno = errnobak; |
1226 | return(-1); | |
1227 | } | |
1228 | fcntl(fd, F_SETFL, fcntl(fd, F_GETFL) | O_NONBLOCK); | |
0538f877 | 1229 | message(4, "connecting to %s\n", formataddress(curhost->ai_addr, curhost->ai_addrlen)); |
12383d48 | 1230 | if(connect(fd, (struct sockaddr *)curhost->ai_addr, curhost->ai_addrlen)) |
d3372da9 | 1231 | { |
1232 | if(errno == EINPROGRESS) | |
1233 | { | |
1234 | state = 0; | |
1235 | break; | |
1236 | } | |
0538f877 | 1237 | message(2, "could not connect to %s: %s\n", formataddress(curhost->ai_addr, curhost->ai_addrlen), strerror(errno)); |
d3372da9 | 1238 | close(fd); |
1239 | fd = -1; | |
1240 | } else { | |
12383d48 | 1241 | if(curhost->ai_canonname != NULL) |
9e5f2b29 | 1242 | servinfo.hostname = sstrdup(curhost->ai_canonname); |
1243 | servinfo.family = curhost->ai_family; | |
d3372da9 | 1244 | state = 1; |
1245 | break; | |
1246 | } | |
1247 | } | |
e4b88cc0 | 1248 | if(state != -1) |
1249 | { | |
1250 | qcmd = makeqcmd(NULL); | |
1251 | if(cnctcmd != NULL) | |
1252 | *cnctcmd = qcmd; | |
1253 | resetreader = 1; | |
1254 | } else { | |
1255 | free(hostlist); | |
1256 | hostlist = NULL; | |
1257 | } | |
d3372da9 | 1258 | return(fd); |
1259 | } | |
1260 | ||
e4b88cc0 | 1261 | static int dc_connect2(char *host, struct qcmd **cnctcmd) |
8affe2ff | 1262 | { |
1263 | struct addrinfo *ai; | |
e4b88cc0 | 1264 | struct qcmd *qcmd; |
8affe2ff | 1265 | int ret; |
1266 | ||
0538f877 | 1267 | if(host == dc_srv_local) { |
1268 | message(4, "connect start: Unix\n"); | |
e4b88cc0 | 1269 | ai = getlocalai(); |
0538f877 | 1270 | } else if(!host || !*host) { |
1271 | message(4, "connect start: default\n"); | |
8affe2ff | 1272 | ai = defaulthost(); |
0538f877 | 1273 | } else { |
1274 | message(4, "connect start: host %s\n", host); | |
8affe2ff | 1275 | ai = resolvhost(host); |
0538f877 | 1276 | } |
8affe2ff | 1277 | if(ai == NULL) |
1278 | return(-1); | |
e4b88cc0 | 1279 | ret = dc_connectai(ai, &qcmd); |
1280 | if((ret >= 0) && (cnctcmd != NULL)) | |
1281 | *cnctcmd = qcmd; | |
8affe2ff | 1282 | return(ret); |
1283 | } | |
1284 | ||
e4b88cc0 | 1285 | int dc_connect(char *host) |
1286 | { | |
1287 | return(dc_connect2(host, NULL)); | |
1288 | } | |
1289 | ||
1290 | int dc_connectsync(char *host, struct dc_response **respbuf) | |
8affe2ff | 1291 | { |
8affe2ff | 1292 | int ret; |
e4b88cc0 | 1293 | struct qcmd *cc; |
1294 | struct dc_response *resp; | |
8affe2ff | 1295 | |
e4b88cc0 | 1296 | if((ret = dc_connect2(host, &cc)) < 0) |
1297 | return(-1); | |
1298 | resp = dc_gettaggedrespsync(cc->tag); | |
1299 | if(resp == NULL) { | |
1300 | dc_disconnect(); | |
1301 | return(-1); | |
1302 | } | |
1303 | if(respbuf == NULL) | |
1304 | dc_freeresp(resp); | |
1305 | else | |
1306 | *respbuf = resp; | |
1307 | return(ret); | |
1308 | } | |
1309 | ||
1310 | int dc_connectsync2(char *host, int rev) | |
1311 | { | |
1312 | int ret; | |
1313 | struct dc_response *resp; | |
1314 | ||
1315 | if((ret = dc_connectsync(host, &resp)) < 0) | |
1316 | return(-1); | |
1317 | if(dc_checkprotocol(resp, rev)) | |
1318 | { | |
1319 | dc_freeresp(resp); | |
1320 | dc_disconnect(); | |
a24f31ec | 1321 | errno = EPROTONOSUPPORT; |
e4b88cc0 | 1322 | return(-1); |
1323 | } | |
1324 | dc_freeresp(resp); | |
8affe2ff | 1325 | return(ret); |
1326 | } | |
1327 | ||
d3372da9 | 1328 | struct dc_intresp *dc_interpret(struct dc_response *resp) |
1329 | { | |
1330 | int i; | |
1331 | struct dc_intresp *iresp; | |
1332 | struct command *cmd; | |
1333 | struct respclass *cls; | |
1334 | int code; | |
26d72b0d | 1335 | size_t args; |
d3372da9 | 1336 | |
1337 | if((resp->numlines == 0) || (resp->rlines[0].argc == 0) || (resp->curline >= resp->numlines)) | |
1338 | return(NULL); | |
1339 | code = wcstol(resp->rlines[0].argv[0], NULL, 10); | |
1340 | cmd = (struct command *)(resp->internal); | |
1341 | for(cls = cmd->classes; cls != NULL; cls = cls->next) | |
1342 | { | |
1343 | if(cls->code == code) | |
1344 | break; | |
1345 | } | |
1346 | if(cls == NULL) | |
1347 | return(NULL); | |
1348 | if(cls->nwords >= resp->rlines[resp->curline].argc) | |
1349 | return(NULL); | |
1350 | iresp = smalloc(sizeof(*iresp)); | |
1351 | iresp->code = code; | |
1352 | iresp->argv = NULL; | |
1353 | iresp->argc = 0; | |
1354 | args = 0; | |
1355 | for(i = 0; i < cls->nwords; i++) | |
1356 | { | |
1357 | switch(cls->wordt[i]) | |
1358 | { | |
1359 | case RESP_DSC: | |
1360 | break; | |
1361 | case RESP_STR: | |
1362 | sizebuf(&(iresp->argv), &args, iresp->argc + 1, sizeof(*(iresp->argv)), 1); | |
1363 | iresp->argv[iresp->argc].val.str = swcsdup(resp->rlines[resp->curline].argv[i + 1]); | |
1364 | iresp->argv[iresp->argc].type = cls->wordt[i]; | |
1365 | iresp->argc++; | |
1366 | break; | |
1367 | case RESP_INT: | |
1368 | sizebuf(&(iresp->argv), &args, iresp->argc + 1, sizeof(*(iresp->argv)), 1); | |
1369 | iresp->argv[iresp->argc].val.num = wcstol(resp->rlines[resp->curline].argv[i + 1], NULL, 0); | |
1370 | iresp->argv[iresp->argc].type = cls->wordt[i]; | |
1371 | iresp->argc++; | |
1372 | break; | |
1373 | case RESP_FLOAT: | |
1374 | sizebuf(&(iresp->argv), &args, iresp->argc + 1, sizeof(*(iresp->argv)), 1); | |
1375 | iresp->argv[iresp->argc].val.flnum = wcstod(resp->rlines[resp->curline].argv[i + 1], NULL); | |
1376 | iresp->argv[iresp->argc].type = cls->wordt[i]; | |
1377 | iresp->argc++; | |
1378 | break; | |
8f623b36 FT |
1379 | case RESP_LNUM: |
1380 | sizebuf(&(iresp->argv), &args, iresp->argc + 1, sizeof(*(iresp->argv)), 1); | |
1381 | iresp->argv[iresp->argc].val.lnum = wcstoll(resp->rlines[resp->curline].argv[i + 1], NULL, 0); | |
1382 | iresp->argv[iresp->argc].type = cls->wordt[i]; | |
1383 | iresp->argc++; | |
1384 | break; | |
d3372da9 | 1385 | } |
1386 | } | |
1387 | resp->curline++; | |
1388 | return(iresp); | |
1389 | } | |
1390 | ||
1391 | void dc_freeires(struct dc_intresp *ires) | |
1392 | { | |
1393 | int i; | |
1394 | ||
1395 | for(i = 0; i < ires->argc; i++) | |
1396 | { | |
1397 | if(ires->argv[i].type == RESP_STR) | |
1398 | free(ires->argv[i].val.str); | |
1399 | } | |
1400 | free(ires->argv); | |
1401 | free(ires); | |
1402 | } | |
1403 | ||
9a0ef8e1 | 1404 | int dc_checkprotocol(struct dc_response *resp, int revision) |
1405 | { | |
1406 | struct dc_intresp *ires; | |
1407 | int low, high; | |
1408 | ||
1409 | if(resp->code != 201) | |
1410 | return(-1); | |
1411 | resp->curline = 0; | |
1412 | if((ires = dc_interpret(resp)) == NULL) | |
1413 | return(-1); | |
1414 | low = ires->argv[0].val.num; | |
e4b88cc0 | 1415 | high = ires->argv[1].val.num; |
9a0ef8e1 | 1416 | dc_freeires(ires); |
1417 | if((revision < low) || (revision > high)) | |
1418 | return(-1); | |
1419 | return(0); | |
1420 | } | |
1421 | ||
d3372da9 | 1422 | const char *dc_gethostname(void) |
1423 | { | |
9e5f2b29 | 1424 | return(servinfo.hostname); |
d3372da9 | 1425 | } |
e4b88cc0 | 1426 | |
1427 | int dc_getfd(void) | |
1428 | { | |
1429 | return(fd); | |
1430 | } |