1 /* $NetBSD: cgi-bozo.c,v 1.39 2017/11/28 10:33:51 martin Exp $ */ 2 3 /* $eterna: cgi-bozo.c,v 1.40 2011/11/18 09:21:15 mrg Exp $ */ 4 5 /* 6 * Copyright (c) 1997-2017 Matthew R. Green 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer and 16 * dedication in the documentation and/or other materials provided 17 * with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 26 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 27 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 */ 32 33 /* this code implements CGI/1.2 for bozohttpd */ 34 35 #ifndef NO_CGIBIN_SUPPORT 36 37 #include <sys/param.h> 38 #include <sys/socket.h> 39 40 #include <ctype.h> 41 #include <errno.h> 42 #include <paths.h> 43 #include <signal.h> 44 #include <stdlib.h> 45 #include <string.h> 46 #include <syslog.h> 47 #include <unistd.h> 48 49 #include <netinet/in.h> 50 51 #include "bozohttpd.h" 52 53 #define CGIBIN_PREFIX "cgi-bin/" 54 #define CGIBIN_PREFIX_LEN (sizeof(CGIBIN_PREFIX)-1) 55 56 #ifndef USE_ARG 57 #define USE_ARG(x) /*LINTED*/(void)&(x) 58 #endif 59 60 /* 61 * given the file name, return a CGI interpreter 62 */ 63 static const char * 64 content_cgihandler(bozohttpd_t *httpd, bozo_httpreq_t *request, 65 const char *file) 66 { 67 bozo_content_map_t *map; 68 69 USE_ARG(request); 70 debug((httpd, DEBUG_FAT, "content_cgihandler: trying file %s", file)); 71 map = bozo_match_content_map(httpd, file, 0); 72 if (map) 73 return map->cgihandler; 74 return NULL; 75 } 76 77 static int 78 parse_header(bozo_httpreq_t *request, const char *str, ssize_t len, 79 char **hdr_str, char **hdr_val) 80 { 81 struct bozohttpd_t *httpd = request->hr_httpd; 82 char *name, *value; 83 84 /* if the string passed is zero-length bail out */ 85 if (*str == '\0') 86 return -1; 87 88 value = bozostrdup(httpd, request, str); 89 90 /* locate the ':' separator in the header/value */ 91 name = bozostrnsep(&value, ":", &len); 92 93 if (NULL == name || -1 == len) { 94 free(value); 95 return -1; 96 } 97 98 /* skip leading space/tab */ 99 while (*value == ' ' || *value == '\t') 100 len--, value++; 101 102 *hdr_str = name; 103 *hdr_val = value; 104 105 return 0; 106 } 107 108 /* 109 * handle parsing a CGI header output, transposing a Status: header 110 * into the HTTP reply (ie, instead of "200 OK"). 111 */ 112 static void 113 finish_cgi_output(bozohttpd_t *httpd, bozo_httpreq_t *request, int in, int nph) 114 { 115 char buf[BOZO_WRSZ]; 116 char *str; 117 ssize_t len; 118 ssize_t rbytes; 119 SIMPLEQ_HEAD(, bozoheaders) headers; 120 bozoheaders_t *hdr, *nhdr; 121 int write_header, nheaders = 0; 122 123 /* much of this code is like bozo_read_request()'s header loop. */ 124 SIMPLEQ_INIT(&headers); 125 write_header = nph == 0; 126 /* was read(2) here - XXX - agc */ 127 while (nph == 0 && 128 (str = bozodgetln(httpd, in, &len, bozo_read)) != NULL) { 129 char *hdr_name, *hdr_value; 130 131 if (parse_header(request, str, len, &hdr_name, &hdr_value)) 132 break; 133 134 /* 135 * The CGI 1.{1,2} spec both say that if the cgi program 136 * returns a `Status:' header field then the server MUST 137 * return it in the response. If the cgi program does 138 * not return any `Status:' header then the server should 139 * respond with 200 OK. 140 * XXX The CGI 1.1 and 1.2 specification differ slightly on 141 * this in that v1.2 says that the script MUST NOT return a 142 * `Status:' header if it is returning a `Location:' header. 143 * For compatibility we are going with the CGI 1.1 behavior. 144 */ 145 if (strcasecmp(hdr_name, "status") == 0) { 146 debug((httpd, DEBUG_OBESE, 147 "bozo_process_cgi: writing HTTP header " 148 "from status %s ..", hdr_value)); 149 bozo_printf(httpd, "%s %s\r\n", request->hr_proto, 150 hdr_value); 151 bozo_flush(httpd, stdout); 152 write_header = 0; 153 free(hdr_name); 154 break; 155 } 156 157 hdr = bozomalloc(httpd, sizeof *hdr); 158 hdr->h_header = hdr_name; 159 hdr->h_value = hdr_value; 160 SIMPLEQ_INSERT_TAIL(&headers, hdr, h_next); 161 nheaders++; 162 } 163 164 if (write_header) { 165 debug((httpd, DEBUG_OBESE, 166 "bozo_process_cgi: writing HTTP header ..")); 167 bozo_printf(httpd, 168 "%s 200 OK\r\n", request->hr_proto); 169 bozo_flush(httpd, stdout); 170 } 171 172 if (nheaders) { 173 debug((httpd, DEBUG_OBESE, 174 "bozo_process_cgi: writing delayed HTTP headers ..")); 175 SIMPLEQ_FOREACH_SAFE(hdr, &headers, h_next, nhdr) { 176 bozo_printf(httpd, "%s: %s\r\n", hdr->h_header, 177 hdr->h_value); 178 free(hdr->h_header); 179 free(hdr); 180 } 181 bozo_printf(httpd, "\r\n"); 182 bozo_flush(httpd, stdout); 183 } 184 185 /* XXX we should have some goo that times us out 186 */ 187 while ((rbytes = read(in, buf, sizeof buf)) > 0) { 188 ssize_t wbytes; 189 char *bp = buf; 190 191 while (rbytes) { 192 wbytes = bozo_write(httpd, STDOUT_FILENO, buf, 193 (size_t)rbytes); 194 if (wbytes > 0) { 195 rbytes -= wbytes; 196 bp += wbytes; 197 } else 198 bozoerr(httpd, 1, 199 "cgi output write failed: %s", 200 strerror(errno)); 201 } 202 } 203 } 204 205 static void 206 append_index_html(bozohttpd_t *httpd, char **url) 207 { 208 *url = bozorealloc(httpd, *url, 209 strlen(*url) + strlen(httpd->index_html) + 1); 210 strcat(*url, httpd->index_html); 211 debug((httpd, DEBUG_NORMAL, 212 "append_index_html: url adjusted to `%s'", *url)); 213 } 214 215 /* This function parse search-string according to section 4.4 of RFC3875 */ 216 static char ** 217 parse_search_string(bozo_httpreq_t *request, const char *query, size_t *args_len) 218 { 219 struct bozohttpd_t *httpd = request->hr_httpd; 220 size_t i; 221 char *s, *str, **args; 222 223 *args_len = 0; 224 225 /* URI MUST not contain any unencoded '=' - RFC3875, section 4.4 */ 226 if (strchr(query, '=')) { 227 return NULL; 228 } 229 230 str = bozostrdup(httpd, request, query); 231 232 /* 233 * there's no more arguments than '+' chars in the query string as it's 234 * the separator 235 */ 236 *args_len = 1; 237 /* count '+' in str */ 238 for (s = str; (s = strchr(s, '+')); (*args_len)++) 239 s++; 240 241 args = bozomalloc(httpd, sizeof(*args) * (*args_len + 1)); 242 243 args[0] = str; 244 args[*args_len] = NULL; 245 for (s = str, i = 0; (s = strchr(s, '+'));) { 246 *s = '\0'; 247 s++; 248 args[i++] = s; 249 } 250 251 /* 252 * check if search-strings are valid: 253 * 254 * RFC3875, section 4.4: 255 * 256 * search-string = search-word *( "+" search-word ) 257 * search-word = 1*schar 258 * schar = unreserved | escaped | xreserved 259 * xreserved = ";" | "/" | "?" | ":" | "@" | "&" | "=" | "," | 260 * "$" 261 * 262 * section 2.3: 263 * 264 * hex = digit | "A" | "B" | "C" | "D" | "E" | "F" | "a" | 265 * "b" | "c" | "d" | "e" | "f" 266 * escaped = "%" hex hex 267 * unreserved = alpha | digit | mark 268 * mark = "-" | "_" | "." | "!" | "~" | "*" | "'" | "(" | ")" 269 * 270 * section 2.2: 271 * 272 * alpha = lowalpha | hialpha 273 * lowalpha = "a" | "b" | "c" | "d" | "e" | "f" | "g" | "h" | 274 * "i" | "j" | "k" | "l" | "m" | "n" | "o" | "p" | 275 * "q" | "r" | "s" | "t" | "u" | "v" | "w" | "x" | 276 * "y" | "z" 277 * hialpha = "A" | "B" | "C" | "D" | "E" | "F" | "G" | "H" | 278 * "I" | "J" | "K" | "L" | "M" | "N" | "O" | "P" | 279 * "Q" | "R" | "S" | "T" | "U" | "V" | "W" | "X" | 280 * "Y" | "Z" 281 * digit = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | 282 * "8" | "9" 283 */ 284 #define UNRESERVED_CHAR "-_.!~*'()" 285 #define XRESERVED_CHAR ";/?:@&=,$" 286 287 for (i = 0; i < *args_len; i++) { 288 s = args[i]; 289 /* search-word MUST have at least one schar */ 290 if (*s == '\0') 291 goto parse_err; 292 while(*s) { 293 /* check if it's unreserved */ 294 if (isalpha((int)*s) || isdigit((int)*s) || 295 strchr(UNRESERVED_CHAR, *s)) { 296 s++; 297 continue; 298 } 299 300 /* check if it's escaped */ 301 if (*s == '%') { 302 if (s[1] == '\0' || s[2] == '\0') 303 goto parse_err; 304 if (!isxdigit((int)s[1]) || 305 !isxdigit((int)s[2])) 306 goto parse_err; 307 s += 3; 308 continue; 309 } 310 311 /* check if it's xreserved */ 312 313 if (strchr(XRESERVED_CHAR, *s)) { 314 s++; 315 continue; 316 } 317 318 goto parse_err; 319 } 320 } 321 322 /* decode percent encoding */ 323 for (i = 0; i < *args_len; i++) { 324 if (bozo_decode_url_percent(request, args[i])) 325 goto parse_err; 326 } 327 328 /* allocate each arg separately */ 329 for (i = 0; i < *args_len; i++) 330 args[i] = bozostrdup(httpd, request, args[i]); 331 free(str); 332 333 return args; 334 335 parse_err: 336 337 free (str); 338 free (*args); 339 free(args); 340 *args_len = 0; 341 342 return NULL; 343 344 } 345 346 void 347 bozo_cgi_setbin(bozohttpd_t *httpd, const char *path) 348 { 349 httpd->cgibin = bozostrdup(httpd, NULL, path); 350 debug((httpd, DEBUG_OBESE, "cgibin (cgi-bin directory) is %s", 351 httpd->cgibin)); 352 } 353 354 /* help build up the environ pointer */ 355 void 356 bozo_setenv(bozohttpd_t *httpd, const char *env, const char *val, 357 char **envp) 358 { 359 char *s1 = bozomalloc(httpd, strlen(env) + strlen(val) + 2); 360 361 strcpy(s1, env); 362 strcat(s1, "="); 363 strcat(s1, val); 364 debug((httpd, DEBUG_OBESE, "bozo_setenv: %s", s1)); 365 *envp = s1; 366 } 367 368 /* 369 * Checks if the request has asked for a cgi-bin. Should only be called if 370 * cgibin is set. If it starts CGIBIN_PREFIX or has a ncontent handler, 371 * process the cgi, otherwise just return. Returns 0 if it did not handle 372 * the request. 373 */ 374 int 375 bozo_process_cgi(bozo_httpreq_t *request) 376 { 377 bozohttpd_t *httpd = request->hr_httpd; 378 char buf[BOZO_WRSZ]; 379 char date[40]; 380 bozoheaders_t *headp; 381 const char *type, *clen, *info, *cgihandler; 382 char *query, *s, *t, *path, *env, *command, *file, *url; 383 char **envp, **curenvp, **argv, **search_string_argv = NULL; 384 char *uri; 385 size_t i, len, search_string_argc = 0; 386 ssize_t rbytes; 387 pid_t pid; 388 int envpsize, ix, nph; 389 int sv[2]; 390 391 if (!httpd->cgibin && !httpd->process_cgi) 392 return 0; 393 394 #ifndef NO_USER_SUPPORT 395 if (request->hr_user && !httpd->enable_cgi_users) 396 return 0; 397 #endif /* !NO_USER_SUPPORT */ 398 399 if (request->hr_oldfile && strcmp(request->hr_oldfile, "/") != 0) 400 uri = request->hr_oldfile; 401 else 402 uri = request->hr_file; 403 404 if (uri[0] == '/') 405 file = bozostrdup(httpd, request, uri); 406 else 407 bozoasprintf(httpd, &file, "/%s", uri); 408 409 if (request->hr_query && strlen(request->hr_query)) 410 query = bozostrdup(httpd, request, request->hr_query); 411 else 412 query = NULL; 413 414 bozoasprintf(httpd, &url, "%s%s%s", 415 file, 416 query ? "?" : "", 417 query ? query : ""); 418 debug((httpd, DEBUG_NORMAL, "bozo_process_cgi: url `%s'", url)); 419 420 path = NULL; 421 envp = NULL; 422 cgihandler = NULL; 423 command = NULL; 424 info = NULL; 425 426 len = strlen(url); 427 428 if (bozo_auth_check(request, url + 1)) 429 goto out; 430 431 if (!httpd->cgibin || 432 strncmp(url + 1, CGIBIN_PREFIX, CGIBIN_PREFIX_LEN) != 0) { 433 cgihandler = content_cgihandler(httpd, request, file + 1); 434 if (cgihandler == NULL) { 435 debug((httpd, DEBUG_FAT, 436 "bozo_process_cgi: no handler, returning")); 437 goto out; 438 } 439 if (len == 0 || file[len - 1] == '/') 440 append_index_html(httpd, &file); 441 debug((httpd, DEBUG_NORMAL, "bozo_process_cgi: cgihandler `%s'", 442 cgihandler)); 443 } else if (len - 1 == CGIBIN_PREFIX_LEN) /* url is "/cgi-bin/" */ 444 append_index_html(httpd, &file); 445 446 /* RFC3875 sect. 4.4. - search-string support */ 447 if (query != NULL) { 448 search_string_argv = parse_search_string(request, query, 449 &search_string_argc); 450 } 451 452 debug((httpd, DEBUG_NORMAL, "parse_search_string args no: %zu", 453 search_string_argc)); 454 for (i = 0; i < search_string_argc; i++) { 455 debug((httpd, DEBUG_FAT, 456 "search_string[%zu]: `%s'", i, search_string_argv[i])); 457 } 458 459 argv = bozomalloc(httpd, sizeof(*argv) * (3 + search_string_argc)); 460 461 ix = 0; 462 if (cgihandler) { 463 command = file + 1; 464 path = bozostrdup(httpd, request, cgihandler); 465 } else { 466 command = file + CGIBIN_PREFIX_LEN + 1; 467 if ((s = strchr(command, '/')) != NULL) { 468 info = bozostrdup(httpd, request, s); 469 *s = '\0'; 470 } 471 path = bozomalloc(httpd, 472 strlen(httpd->cgibin) + 1 + strlen(command) + 1); 473 strcpy(path, httpd->cgibin); 474 strcat(path, "/"); 475 strcat(path, command); 476 } 477 478 argv[ix++] = path; 479 480 /* copy search-string args */ 481 for (i = 0; i < search_string_argc; i++) 482 argv[ix++] = search_string_argv[i]; 483 484 argv[ix++] = NULL; 485 nph = strncmp(command, "nph-", 4) == 0; 486 487 type = request->hr_content_type; 488 clen = request->hr_content_length; 489 490 envpsize = 13 + request->hr_nheaders + 491 (info && *info ? 1 : 0) + 492 (query && *query ? 1 : 0) + 493 (type && *type ? 1 : 0) + 494 (clen && *clen ? 1 : 0) + 495 (request->hr_remotehost && *request->hr_remotehost ? 1 : 0) + 496 (request->hr_remoteaddr && *request->hr_remoteaddr ? 1 : 0) + 497 bozo_auth_cgi_count(request) + 498 (request->hr_serverport && *request->hr_serverport ? 1 : 0); 499 500 debug((httpd, DEBUG_FAT, 501 "bozo_process_cgi: path `%s', cmd `%s', info `%s', " 502 "query `%s', nph `%d', envpsize `%d'", 503 path, command, strornull(info), 504 strornull(query), nph, envpsize)); 505 506 envp = bozomalloc(httpd, sizeof(*envp) * envpsize); 507 for (ix = 0; ix < envpsize; ix++) 508 envp[ix] = NULL; 509 curenvp = envp; 510 511 SIMPLEQ_FOREACH(headp, &request->hr_headers, h_next) { 512 const char *s2; 513 env = bozomalloc(httpd, 6 + strlen(headp->h_header) + 1 + 514 strlen(headp->h_value)); 515 516 t = env; 517 strcpy(t, "HTTP_"); 518 t += strlen(t); 519 for (s2 = headp->h_header; *s2; t++, s2++) 520 if (islower((unsigned)*s2)) 521 *t = toupper((unsigned)*s2); 522 else if (*s2 == '-') 523 *t = '_'; 524 else 525 *t = *s2; 526 *t = '\0'; 527 debug((httpd, DEBUG_OBESE, "setting header %s as %s = %s", 528 headp->h_header, env, headp->h_value)); 529 bozo_setenv(httpd, env, headp->h_value, curenvp++); 530 free(env); 531 } 532 533 #ifndef _PATH_DEFPATH 534 #define _PATH_DEFPATH "/usr/bin:/bin" 535 #endif 536 537 bozo_setenv(httpd, "PATH", _PATH_DEFPATH, curenvp++); 538 bozo_setenv(httpd, "IFS", " \t\n", curenvp++); 539 bozo_setenv(httpd, "SERVER_NAME", BOZOHOST(httpd,request), curenvp++); 540 bozo_setenv(httpd, "GATEWAY_INTERFACE", "CGI/1.1", curenvp++); 541 bozo_setenv(httpd, "SERVER_PROTOCOL", request->hr_proto, curenvp++); 542 bozo_setenv(httpd, "REQUEST_METHOD", request->hr_methodstr, curenvp++); 543 bozo_setenv(httpd, "SCRIPT_NAME", file, curenvp++); 544 bozo_setenv(httpd, "SCRIPT_FILENAME", file + 1, curenvp++); 545 bozo_setenv(httpd, "SERVER_SOFTWARE", httpd->server_software, 546 curenvp++); 547 bozo_setenv(httpd, "REQUEST_URI", uri, curenvp++); 548 bozo_setenv(httpd, "DATE_GMT", bozo_http_date(date, sizeof(date)), 549 curenvp++); 550 /* RFC3875 section 4.1.7 says that QUERY_STRING MUST be defined. */ 551 if (query && *query) 552 bozo_setenv(httpd, "QUERY_STRING", query, curenvp++); 553 else 554 bozo_setenv(httpd, "QUERY_STRING", "", curenvp++); 555 if (info && *info) 556 bozo_setenv(httpd, "PATH_INFO", info, curenvp++); 557 if (type && *type) 558 bozo_setenv(httpd, "CONTENT_TYPE", type, curenvp++); 559 if (clen && *clen) 560 bozo_setenv(httpd, "CONTENT_LENGTH", clen, curenvp++); 561 if (request->hr_serverport && *request->hr_serverport) 562 bozo_setenv(httpd, "SERVER_PORT", request->hr_serverport, 563 curenvp++); 564 if (request->hr_remotehost && *request->hr_remotehost) 565 bozo_setenv(httpd, "REMOTE_HOST", request->hr_remotehost, 566 curenvp++); 567 if (request->hr_remoteaddr && *request->hr_remoteaddr) 568 bozo_setenv(httpd, "REMOTE_ADDR", request->hr_remoteaddr, 569 curenvp++); 570 /* 571 * Apache does this when invoking content handlers, and PHP 572 * 5.3 requires it as a "security" measure. 573 */ 574 if (cgihandler) 575 bozo_setenv(httpd, "REDIRECT_STATUS", "200", curenvp++); 576 bozo_auth_cgi_setenv(request, &curenvp); 577 578 debug((httpd, DEBUG_FAT, "bozo_process_cgi: going exec %s with args:", 579 path)); 580 581 for (i = 0; argv[i] != NULL; i++) { 582 debug((httpd, DEBUG_FAT, "bozo_process_cgi: argv[%zu] = `%s'", 583 i, argv[i])); 584 } 585 586 if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, sv) == -1) 587 bozoerr(httpd, 1, "child socketpair failed: %s", 588 strerror(errno)); 589 590 *curenvp = 0; 591 592 /* 593 * We create 2 procs: one to become the CGI, one read from 594 * the CGI and output to the network, and this parent will 595 * continue reading from the network and writing to the 596 * CGI procsss. 597 */ 598 switch (fork()) { 599 case -1: /* eep, failure */ 600 bozoerr(httpd, 1, "child fork failed: %s", strerror(errno)); 601 /*NOTREACHED*/ 602 case 0: 603 close(sv[0]); 604 dup2(sv[1], STDIN_FILENO); 605 dup2(sv[1], STDOUT_FILENO); 606 close(2); 607 close(sv[1]); 608 closelog(); 609 bozo_daemon_closefds(httpd); 610 611 if (-1 == execve(path, argv, envp)) 612 bozoerr(httpd, 1, "child exec failed: %s: %s", 613 path, strerror(errno)); 614 /* NOT REACHED */ 615 bozoerr(httpd, 1, "child execve returned?!"); 616 } 617 618 free(query); 619 free(file); 620 free(url); 621 for (i = 0; i < search_string_argc; i++) 622 free(search_string_argv[i]); 623 free(search_string_argv); 624 625 close(sv[1]); 626 627 /* parent: read from stdin (bozo_read()) write to sv[0] */ 628 /* child: read from sv[0] (bozo_write()) write to stdout */ 629 pid = fork(); 630 if (pid == -1) 631 bozoerr(httpd, 1, "io child fork failed: %s", strerror(errno)); 632 else if (pid == 0) { 633 /* child reader/writer */ 634 close(STDIN_FILENO); 635 finish_cgi_output(httpd, request, sv[0], nph); 636 /* if we're done output, our parent is useless... */ 637 kill(getppid(), SIGKILL); 638 debug((httpd, DEBUG_FAT, "done processing cgi output")); 639 _exit(0); 640 } 641 close(STDOUT_FILENO); 642 643 /* XXX we should have some goo that times us out 644 */ 645 while ((rbytes = bozo_read(httpd, STDIN_FILENO, buf, sizeof buf)) > 0) { 646 ssize_t wbytes; 647 char *bp = buf; 648 649 while (rbytes) { 650 wbytes = write(sv[0], buf, (size_t)rbytes); 651 if (wbytes > 0) { 652 rbytes -= wbytes; 653 bp += wbytes; 654 } else 655 bozoerr(httpd, 1, "write failed: %s", 656 strerror(errno)); 657 } 658 } 659 debug((httpd, DEBUG_FAT, "done processing cgi input")); 660 exit(0); 661 662 out: 663 664 for (i = 0; i < search_string_argc; i++) 665 free(search_string_argv[i]); 666 free(search_string_argv); 667 free(query); 668 free(file); 669 free(url); 670 return 0; 671 } 672 673 #ifndef NO_DYNAMIC_CONTENT 674 /* cgi maps are simple ".postfix /path/to/prog" */ 675 void 676 bozo_add_content_map_cgi(bozohttpd_t *httpd, const char *arg, 677 const char *cgihandler) 678 { 679 bozo_content_map_t *map; 680 681 debug((httpd, DEBUG_NORMAL, "bozo_add_content_map_cgi: name %s cgi %s", 682 arg, cgihandler)); 683 684 httpd->process_cgi = 1; 685 686 map = bozo_get_content_map(httpd, arg); 687 map->name = arg; 688 map->type = map->encoding = map->encoding11 = NULL; 689 map->cgihandler = cgihandler; 690 } 691 #endif /* NO_DYNAMIC_CONTENT */ 692 693 #endif /* NO_CGIBIN_SUPPORT */ 694