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