conf.c revision 1.31.2.3
1 1.31.2.3 jmc /* $NetBSD: conf.c,v 1.31.2.3 2004/08/26 05:00:02 jmc Exp $ */ 2 1.1 lukem 3 1.1 lukem /*- 4 1.31.2.3 jmc * Copyright (c) 1997-2004 The NetBSD Foundation, Inc. 5 1.1 lukem * All rights reserved. 6 1.1 lukem * 7 1.1 lukem * This code is derived from software contributed to The NetBSD Foundation 8 1.1 lukem * by Simon Burge and Luke Mewburn. 9 1.1 lukem * 10 1.1 lukem * Redistribution and use in source and binary forms, with or without 11 1.1 lukem * modification, are permitted provided that the following conditions 12 1.1 lukem * are met: 13 1.1 lukem * 1. Redistributions of source code must retain the above copyright 14 1.1 lukem * notice, this list of conditions and the following disclaimer. 15 1.1 lukem * 2. Redistributions in binary form must reproduce the above copyright 16 1.1 lukem * notice, this list of conditions and the following disclaimer in the 17 1.1 lukem * documentation and/or other materials provided with the distribution. 18 1.1 lukem * 3. All advertising materials mentioning features or use of this software 19 1.1 lukem * must display the following acknowledgement: 20 1.1 lukem * This product includes software developed by the NetBSD 21 1.1 lukem * Foundation, Inc. and its contributors. 22 1.1 lukem * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.1 lukem * contributors may be used to endorse or promote products derived 24 1.1 lukem * from this software without specific prior written permission. 25 1.1 lukem * 26 1.1 lukem * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.1 lukem * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.1 lukem * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.4 jtc * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.4 jtc * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.1 lukem * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.1 lukem * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.1 lukem * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.1 lukem * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.1 lukem * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.1 lukem * POSSIBILITY OF SUCH DAMAGE. 37 1.1 lukem */ 38 1.1 lukem 39 1.2 christos #include <sys/cdefs.h> 40 1.1 lukem #ifndef lint 41 1.31.2.3 jmc __RCSID("$NetBSD: conf.c,v 1.31.2.3 2004/08/26 05:00:02 jmc Exp $"); 42 1.1 lukem #endif /* not lint */ 43 1.1 lukem 44 1.1 lukem #include <sys/types.h> 45 1.1 lukem #include <sys/param.h> 46 1.31.2.2 lukem #include <sys/socket.h> 47 1.1 lukem #include <sys/stat.h> 48 1.1 lukem 49 1.24 lukem #include <ctype.h> 50 1.1 lukem #include <errno.h> 51 1.25 lukem #include <fcntl.h> 52 1.1 lukem #include <glob.h> 53 1.31.2.2 lukem #include <netdb.h> 54 1.25 lukem #include <signal.h> 55 1.1 lukem #include <stdio.h> 56 1.2 christos #include <stdlib.h> 57 1.1 lukem #include <string.h> 58 1.1 lukem #include <stringlist.h> 59 1.1 lukem #include <syslog.h> 60 1.23 lukem #include <time.h> 61 1.23 lukem #include <unistd.h> 62 1.23 lukem #include <util.h> 63 1.18 explorer 64 1.18 explorer #ifdef KERBEROS5 65 1.21 christos #include <krb5/krb5.h> 66 1.18 explorer #endif 67 1.1 lukem 68 1.1 lukem #include "extern.h" 69 1.1 lukem #include "pathnames.h" 70 1.1 lukem 71 1.30 lukem static char *strend(const char *, char *); 72 1.30 lukem static int filetypematch(char *, int); 73 1.15 lukem 74 1.1 lukem 75 1.31.2.2 lukem /* class defaults */ 76 1.31.2.2 lukem #define DEFAULT_LIMIT -1 /* unlimited connections */ 77 1.31.2.2 lukem #define DEFAULT_MAXFILESIZE -1 /* unlimited file size */ 78 1.31.2.2 lukem #define DEFAULT_MAXTIMEOUT 7200 /* 2 hours */ 79 1.31.2.2 lukem #define DEFAULT_TIMEOUT 900 /* 15 minutes */ 80 1.31.2.2 lukem #define DEFAULT_UMASK 027 /* 15 minutes */ 81 1.31.2.2 lukem 82 1.1 lukem /* 83 1.25 lukem * Initialise curclass to an `empty' state 84 1.1 lukem */ 85 1.1 lukem void 86 1.30 lukem init_curclass(void) 87 1.1 lukem { 88 1.1 lukem struct ftpconv *conv, *cnext; 89 1.1 lukem 90 1.23 lukem for (conv = curclass.conversions; conv != NULL; conv = cnext) { 91 1.1 lukem REASSIGN(conv->suffix, NULL); 92 1.1 lukem REASSIGN(conv->types, NULL); 93 1.1 lukem REASSIGN(conv->disable, NULL); 94 1.1 lukem REASSIGN(conv->command, NULL); 95 1.1 lukem cnext = conv->next; 96 1.1 lukem free(conv); 97 1.1 lukem } 98 1.28 lukem 99 1.31.2.2 lukem memset((char *)&curclass.advertise, 0, sizeof(curclass.advertise)); 100 1.31.2.2 lukem curclass.advertise.su_len = 0; /* `not used' */ 101 1.31.2.1 lukem REASSIGN(curclass.chroot, NULL); 102 1.25 lukem REASSIGN(curclass.classname, NULL); 103 1.1 lukem curclass.conversions = NULL; 104 1.1 lukem REASSIGN(curclass.display, NULL); 105 1.31.2.1 lukem REASSIGN(curclass.homedir, NULL); 106 1.31.2.2 lukem curclass.limit = DEFAULT_LIMIT; 107 1.25 lukem REASSIGN(curclass.limitfile, NULL); 108 1.31.2.2 lukem curclass.maxfilesize = DEFAULT_MAXFILESIZE; 109 1.24 lukem curclass.maxrateget = 0; 110 1.24 lukem curclass.maxrateput = 0; 111 1.31.2.2 lukem curclass.maxtimeout = DEFAULT_MAXTIMEOUT; 112 1.24 lukem REASSIGN(curclass.motd, xstrdup(_PATH_FTPLOGINMESG)); 113 1.1 lukem REASSIGN(curclass.notify, NULL); 114 1.28 lukem curclass.portmin = 0; 115 1.28 lukem curclass.portmax = 0; 116 1.24 lukem curclass.rateget = 0; 117 1.24 lukem curclass.rateput = 0; 118 1.31.2.2 lukem curclass.timeout = DEFAULT_TIMEOUT; 119 1.31.2.1 lukem /* curclass.type is set elsewhere */ 120 1.31.2.2 lukem curclass.umask = DEFAULT_UMASK; 121 1.31.2.3 jmc curclass.mmapsize = 0; 122 1.31.2.3 jmc curclass.readsize = 0; 123 1.31.2.3 jmc curclass.writesize = 0; 124 1.31.2.3 jmc curclass.sendbufsize = 0; 125 1.31.2.3 jmc curclass.sendlowat = 0; 126 1.31.2.2 lukem 127 1.31.2.2 lukem CURCLASS_FLAGS_SET(checkportcmd); 128 1.31.2.3 jmc CURCLASS_FLAGS_CLR(denyquick); 129 1.31.2.2 lukem CURCLASS_FLAGS_SET(modify); 130 1.31.2.2 lukem CURCLASS_FLAGS_SET(passive); 131 1.31.2.3 jmc CURCLASS_FLAGS_CLR(private); 132 1.31.2.2 lukem CURCLASS_FLAGS_CLR(sanenames); 133 1.31.2.2 lukem CURCLASS_FLAGS_SET(upload); 134 1.25 lukem } 135 1.25 lukem 136 1.25 lukem /* 137 1.25 lukem * Parse the configuration file, looking for the named class, and 138 1.25 lukem * define curclass to contain the appropriate settings. 139 1.25 lukem */ 140 1.25 lukem void 141 1.30 lukem parse_conf(const char *findclass) 142 1.25 lukem { 143 1.25 lukem FILE *f; 144 1.25 lukem char *buf, *p; 145 1.25 lukem size_t len; 146 1.31.2.2 lukem LLT llval; 147 1.31.2.2 lukem int none, match; 148 1.31.2.3 jmc char *endp, errbuf[100]; 149 1.26 lukem char *class, *word, *arg, *template; 150 1.25 lukem const char *infile; 151 1.25 lukem size_t line; 152 1.25 lukem struct ftpconv *conv, *cnext; 153 1.25 lukem 154 1.25 lukem init_curclass(); 155 1.25 lukem REASSIGN(curclass.classname, xstrdup(findclass)); 156 1.31.2.2 lukem /* set more guest defaults */ 157 1.1 lukem if (strcasecmp(findclass, "guest") == 0) { 158 1.31.2.2 lukem CURCLASS_FLAGS_CLR(modify); 159 1.1 lukem curclass.umask = 0707; 160 1.1 lukem } 161 1.1 lukem 162 1.6 lukem infile = conffilename(_PATH_FTPDCONF); 163 1.1 lukem if ((f = fopen(infile, "r")) == NULL) 164 1.1 lukem return; 165 1.1 lukem 166 1.1 lukem line = 0; 167 1.26 lukem template = NULL; 168 1.23 lukem for (; 169 1.23 lukem (buf = fparseln(f, &len, &line, NULL, FPARSELN_UNESCCOMM | 170 1.31.2.3 jmc FPARSELN_UNESCCONT | FPARSELN_UNESCESC)) != NULL; 171 1.23 lukem free(buf)) { 172 1.1 lukem none = match = 0; 173 1.23 lukem p = buf; 174 1.5 lukem if (len < 1) 175 1.5 lukem continue; 176 1.23 lukem if (p[len - 1] == '\n') 177 1.23 lukem p[--len] = '\0'; 178 1.23 lukem if (EMPTYSTR(p)) 179 1.1 lukem continue; 180 1.1 lukem 181 1.23 lukem NEXTWORD(p, word); 182 1.23 lukem NEXTWORD(p, class); 183 1.23 lukem NEXTWORD(p, arg); 184 1.1 lukem if (EMPTYSTR(word) || EMPTYSTR(class)) 185 1.1 lukem continue; 186 1.1 lukem if (strcasecmp(class, "none") == 0) 187 1.1 lukem none = 1; 188 1.27 lukem if (! (strcasecmp(class, findclass) == 0 || 189 1.27 lukem (template != NULL && strcasecmp(class, template) == 0) || 190 1.27 lukem none || 191 1.27 lukem strcasecmp(class, "all") == 0) ) 192 1.1 lukem continue; 193 1.1 lukem 194 1.31.2.3 jmc #define CONF_FLAG(Field) \ 195 1.31.2.3 jmc do { \ 196 1.31.2.3 jmc if (none || \ 197 1.31.2.3 jmc (!EMPTYSTR(arg) && strcasecmp(arg, "off") == 0)) \ 198 1.31.2.3 jmc CURCLASS_FLAGS_CLR(Field); \ 199 1.31.2.3 jmc else \ 200 1.31.2.3 jmc CURCLASS_FLAGS_SET(Field); \ 201 1.31.2.2 lukem } while (0) 202 1.31.2.2 lukem 203 1.31.2.3 jmc #define CONF_STRING(Field) \ 204 1.31.2.3 jmc do { \ 205 1.31.2.3 jmc if (none || EMPTYSTR(arg)) \ 206 1.31.2.3 jmc arg = NULL; \ 207 1.31.2.3 jmc else \ 208 1.31.2.3 jmc arg = xstrdup(arg); \ 209 1.31.2.3 jmc REASSIGN(curclass.Field, arg); \ 210 1.31.2.2 lukem } while (0) 211 1.31.2.2 lukem 212 1.31.2.3 jmc #define CONF_LL(Field,Arg,Min,Max) \ 213 1.31.2.3 jmc do { \ 214 1.31.2.3 jmc if (none || EMPTYSTR(Arg)) \ 215 1.31.2.3 jmc goto nextline; \ 216 1.31.2.3 jmc llval = strsuftollx(#Field, Arg, Min, Max, \ 217 1.31.2.3 jmc errbuf, sizeof(errbuf)); \ 218 1.31.2.3 jmc if (errbuf[0]) { \ 219 1.31.2.3 jmc syslog(LOG_WARNING, "%s line %d: %s", \ 220 1.31.2.3 jmc infile, (int)line, errbuf); \ 221 1.31.2.3 jmc goto nextline; \ 222 1.31.2.3 jmc } \ 223 1.31.2.3 jmc curclass.Field = llval; \ 224 1.31.2.3 jmc } while(0) 225 1.31.2.2 lukem 226 1.31.2.2 lukem if (0) { 227 1.31.2.2 lukem /* no-op */ 228 1.31.2.2 lukem 229 1.31.2.3 jmc } else if ((strcasecmp(word, "advertise") == 0) 230 1.31.2.3 jmc || (strcasecmp(word, "advertize") == 0)) { 231 1.31.2.2 lukem struct addrinfo hints, *res; 232 1.31.2.2 lukem int error; 233 1.31.2.2 lukem 234 1.31.2.2 lukem memset((char *)&curclass.advertise, 0, 235 1.31.2.2 lukem sizeof(curclass.advertise)); 236 1.31.2.2 lukem curclass.advertise.su_len = 0; 237 1.31.2.2 lukem if (none || EMPTYSTR(arg)) 238 1.31.2.2 lukem continue; 239 1.31.2.2 lukem res = NULL; 240 1.31.2.2 lukem memset(&hints, 0, sizeof(hints)); 241 1.31.2.2 lukem /* 242 1.31.2.2 lukem * only get addresses of the family 243 1.31.2.2 lukem * that we're listening on 244 1.31.2.2 lukem */ 245 1.31.2.2 lukem hints.ai_family = ctrl_addr.su_family; 246 1.31.2.2 lukem hints.ai_socktype = SOCK_STREAM; 247 1.31.2.2 lukem error = getaddrinfo(arg, "0", &hints, &res); 248 1.31.2.2 lukem if (error) { 249 1.31.2.2 lukem syslog(LOG_WARNING, "%s line %d: %s", 250 1.31.2.2 lukem infile, (int)line, gai_strerror(error)); 251 1.31.2.2 lukem advertiseparsefail: 252 1.31.2.2 lukem if (res) 253 1.31.2.2 lukem freeaddrinfo(res); 254 1.31.2.2 lukem continue; 255 1.31.2.2 lukem } 256 1.31.2.2 lukem if (res->ai_next) { 257 1.31.2.2 lukem syslog(LOG_WARNING, 258 1.31.2.2 lukem "%s line %d: multiple addresses returned for `%s'; please be more specific", 259 1.31.2.2 lukem infile, (int)line, arg); 260 1.31.2.2 lukem goto advertiseparsefail; 261 1.31.2.2 lukem } 262 1.31.2.2 lukem if (sizeof(curclass.advertise) < res->ai_addrlen || ( 263 1.31.2.2 lukem #ifdef INET6 264 1.31.2.2 lukem res->ai_family != AF_INET6 && 265 1.31.2.2 lukem #endif 266 1.31.2.2 lukem res->ai_family != AF_INET)) { 267 1.31.2.2 lukem syslog(LOG_WARNING, 268 1.31.2.2 lukem "%s line %d: unsupported protocol %d for `%s'", 269 1.31.2.2 lukem infile, (int)line, res->ai_family, arg); 270 1.31.2.2 lukem goto advertiseparsefail; 271 1.31.2.2 lukem } 272 1.31.2.2 lukem memcpy(&curclass.advertise, res->ai_addr, 273 1.31.2.2 lukem res->ai_addrlen); 274 1.31.2.2 lukem curclass.advertise.su_len = res->ai_addrlen; 275 1.31.2.2 lukem freeaddrinfo(res); 276 1.31.2.2 lukem 277 1.31.2.2 lukem } else if (strcasecmp(word, "checkportcmd") == 0) { 278 1.31.2.2 lukem CONF_FLAG(checkportcmd); 279 1.23 lukem 280 1.31.2.1 lukem } else if (strcasecmp(word, "chroot") == 0) { 281 1.31.2.2 lukem CONF_STRING(chroot); 282 1.31.2.1 lukem 283 1.24 lukem } else if (strcasecmp(word, "classtype") == 0) { 284 1.24 lukem if (!none && !EMPTYSTR(arg)) { 285 1.24 lukem if (strcasecmp(arg, "GUEST") == 0) 286 1.24 lukem curclass.type = CLASS_GUEST; 287 1.24 lukem else if (strcasecmp(arg, "CHROOT") == 0) 288 1.24 lukem curclass.type = CLASS_CHROOT; 289 1.24 lukem else if (strcasecmp(arg, "REAL") == 0) 290 1.24 lukem curclass.type = CLASS_REAL; 291 1.24 lukem else { 292 1.24 lukem syslog(LOG_WARNING, 293 1.24 lukem "%s line %d: unknown class type `%s'", 294 1.24 lukem infile, (int)line, arg); 295 1.24 lukem continue; 296 1.24 lukem } 297 1.24 lukem } 298 1.24 lukem 299 1.9 lukem } else if (strcasecmp(word, "conversion") == 0) { 300 1.5 lukem char *suffix, *types, *disable, *convcmd; 301 1.5 lukem 302 1.1 lukem if (EMPTYSTR(arg)) { 303 1.1 lukem syslog(LOG_WARNING, 304 1.1 lukem "%s line %d: %s requires a suffix", 305 1.23 lukem infile, (int)line, word); 306 1.1 lukem continue; /* need a suffix */ 307 1.1 lukem } 308 1.23 lukem NEXTWORD(p, types); 309 1.23 lukem NEXTWORD(p, disable); 310 1.23 lukem convcmd = p; 311 1.1 lukem if (convcmd) 312 1.1 lukem convcmd += strspn(convcmd, " \t"); 313 1.23 lukem suffix = xstrdup(arg); 314 1.1 lukem if (none || EMPTYSTR(types) || 315 1.1 lukem EMPTYSTR(disable) || EMPTYSTR(convcmd)) { 316 1.1 lukem types = NULL; 317 1.1 lukem disable = NULL; 318 1.1 lukem convcmd = NULL; 319 1.1 lukem } else { 320 1.23 lukem types = xstrdup(types); 321 1.23 lukem disable = xstrdup(disable); 322 1.23 lukem convcmd = xstrdup(convcmd); 323 1.1 lukem } 324 1.1 lukem for (conv = curclass.conversions; conv != NULL; 325 1.1 lukem conv = conv->next) { 326 1.5 lukem if (strcmp(conv->suffix, suffix) == 0) 327 1.1 lukem break; 328 1.1 lukem } 329 1.1 lukem if (conv == NULL) { 330 1.1 lukem conv = (struct ftpconv *) 331 1.1 lukem calloc(1, sizeof(struct ftpconv)); 332 1.1 lukem if (conv == NULL) { 333 1.1 lukem syslog(LOG_WARNING, "can't malloc"); 334 1.1 lukem continue; 335 1.1 lukem } 336 1.23 lukem conv->next = NULL; 337 1.23 lukem for (cnext = curclass.conversions; 338 1.23 lukem cnext != NULL; cnext = cnext->next) 339 1.23 lukem if (cnext->next == NULL) 340 1.23 lukem break; 341 1.23 lukem if (cnext != NULL) 342 1.23 lukem cnext->next = conv; 343 1.23 lukem else 344 1.23 lukem curclass.conversions = conv; 345 1.1 lukem } 346 1.5 lukem REASSIGN(conv->suffix, suffix); 347 1.1 lukem REASSIGN(conv->types, types); 348 1.1 lukem REASSIGN(conv->disable, disable); 349 1.1 lukem REASSIGN(conv->command, convcmd); 350 1.23 lukem 351 1.31.2.3 jmc } else if (strcasecmp(word, "denyquick") == 0) { 352 1.31.2.3 jmc CONF_FLAG(denyquick); 353 1.31.2.3 jmc 354 1.1 lukem } else if (strcasecmp(word, "display") == 0) { 355 1.31.2.2 lukem CONF_STRING(display); 356 1.23 lukem 357 1.31.2.1 lukem } else if (strcasecmp(word, "homedir") == 0) { 358 1.31.2.2 lukem CONF_STRING(homedir); 359 1.31.2.1 lukem 360 1.25 lukem } else if (strcasecmp(word, "limit") == 0) { 361 1.31.2.2 lukem curclass.limit = DEFAULT_LIMIT; 362 1.31.2.2 lukem REASSIGN(curclass.limitfile, NULL); 363 1.31.2.3 jmc CONF_LL(limit, arg, -1, LLTMAX); 364 1.26 lukem REASSIGN(curclass.limitfile, 365 1.26 lukem EMPTYSTR(p) ? NULL : xstrdup(p)); 366 1.25 lukem 367 1.31.2.2 lukem } else if (strcasecmp(word, "maxfilesize") == 0) { 368 1.31.2.2 lukem curclass.maxfilesize = DEFAULT_MAXFILESIZE; 369 1.31.2.3 jmc CONF_LL(maxfilesize, arg, -1, LLTMAX); 370 1.31.2.2 lukem 371 1.1 lukem } else if (strcasecmp(word, "maxtimeout") == 0) { 372 1.31.2.2 lukem curclass.maxtimeout = DEFAULT_MAXTIMEOUT; 373 1.31.2.3 jmc CONF_LL(maxtimeout, arg, 374 1.31.2.3 jmc MIN(30, curclass.timeout), LLTMAX); 375 1.31.2.3 jmc 376 1.31.2.3 jmc } else if (strcasecmp(word, "mmapsize") == 0) { 377 1.31.2.3 jmc curclass.mmapsize = 0; 378 1.31.2.3 jmc CONF_LL(mmapsize, arg, 0, LLTMAX); 379 1.31.2.3 jmc 380 1.31.2.3 jmc } else if (strcasecmp(word, "readsize") == 0) { 381 1.31.2.3 jmc curclass.readsize = 0; 382 1.31.2.3 jmc CONF_LL(readsize, arg, 0, LLTMAX); 383 1.31.2.3 jmc 384 1.31.2.3 jmc } else if (strcasecmp(word, "writesize") == 0) { 385 1.31.2.3 jmc curclass.writesize = 0; 386 1.31.2.3 jmc CONF_LL(writesize, arg, 0, LLTMAX); 387 1.31.2.3 jmc 388 1.31.2.3 jmc } else if (strcasecmp(word, "sendbufsize") == 0) { 389 1.31.2.3 jmc curclass.sendbufsize = 0; 390 1.31.2.3 jmc CONF_LL(sendbufsize, arg, 0, LLTMAX); 391 1.31.2.3 jmc 392 1.31.2.3 jmc } else if (strcasecmp(word, "sendlowat") == 0) { 393 1.31.2.3 jmc curclass.sendlowat = 0; 394 1.31.2.3 jmc CONF_LL(sendlowat, arg, 0, LLTMAX); 395 1.23 lukem 396 1.1 lukem } else if (strcasecmp(word, "modify") == 0) { 397 1.31.2.2 lukem CONF_FLAG(modify); 398 1.23 lukem 399 1.24 lukem } else if (strcasecmp(word, "motd") == 0) { 400 1.31.2.2 lukem CONF_STRING(motd); 401 1.24 lukem 402 1.1 lukem } else if (strcasecmp(word, "notify") == 0) { 403 1.31.2.2 lukem CONF_STRING(notify); 404 1.23 lukem 405 1.14 tv } else if (strcasecmp(word, "passive") == 0) { 406 1.31.2.2 lukem CONF_FLAG(passive); 407 1.28 lukem 408 1.28 lukem } else if (strcasecmp(word, "portrange") == 0) { 409 1.31.2.3 jmc long minport, maxport; 410 1.28 lukem 411 1.31.2.2 lukem curclass.portmin = 0; 412 1.31.2.2 lukem curclass.portmax = 0; 413 1.31.2.2 lukem if (none || EMPTYSTR(arg)) 414 1.28 lukem continue; 415 1.31.2.3 jmc if (EMPTYSTR(p)) { 416 1.28 lukem syslog(LOG_WARNING, 417 1.28 lukem "%s line %d: missing maxport argument", 418 1.28 lukem infile, (int)line); 419 1.28 lukem continue; 420 1.28 lukem } 421 1.31.2.3 jmc minport = strsuftollx("minport", arg, IPPORT_RESERVED, 422 1.31.2.3 jmc IPPORT_ANONMAX, errbuf, sizeof(errbuf)); 423 1.31.2.3 jmc if (errbuf[0]) { 424 1.31.2.3 jmc syslog(LOG_WARNING, "%s line %d: %s", 425 1.31.2.3 jmc infile, (int)line, errbuf); 426 1.28 lukem continue; 427 1.28 lukem } 428 1.31.2.3 jmc maxport = strsuftollx("maxport", p, IPPORT_RESERVED, 429 1.31.2.3 jmc IPPORT_ANONMAX, errbuf, sizeof(errbuf)); 430 1.31.2.3 jmc if (errbuf[0]) { 431 1.31.2.3 jmc syslog(LOG_WARNING, "%s line %d: %s", 432 1.31.2.3 jmc infile, (int)line, errbuf); 433 1.28 lukem continue; 434 1.28 lukem } 435 1.28 lukem if (minport >= maxport) { 436 1.28 lukem syslog(LOG_WARNING, 437 1.31.2.3 jmc "%s line %d: minport %ld >= maxport %ld", 438 1.28 lukem infile, (int)line, minport, maxport); 439 1.28 lukem continue; 440 1.28 lukem } 441 1.31.2.3 jmc curclass.portmin = (int)minport; 442 1.31.2.3 jmc curclass.portmax = (int)maxport; 443 1.31.2.3 jmc 444 1.31.2.3 jmc } else if (strcasecmp(word, "private") == 0) { 445 1.31.2.3 jmc CONF_FLAG(private); 446 1.23 lukem 447 1.24 lukem } else if (strcasecmp(word, "rateget") == 0) { 448 1.31.2.3 jmc curclass.maxrateget = curclass.rateget = 0; 449 1.31.2.3 jmc CONF_LL(rateget, arg, 0, LLTMAX); 450 1.31.2.3 jmc curclass.maxrateget = curclass.rateget; 451 1.24 lukem 452 1.24 lukem } else if (strcasecmp(word, "rateput") == 0) { 453 1.31.2.3 jmc curclass.maxrateput = curclass.rateput = 0; 454 1.31.2.3 jmc CONF_LL(rateput, arg, 0, LLTMAX); 455 1.31.2.3 jmc curclass.maxrateput = curclass.rateput; 456 1.31.2.2 lukem 457 1.31.2.2 lukem } else if (strcasecmp(word, "sanenames") == 0) { 458 1.31.2.2 lukem CONF_FLAG(sanenames); 459 1.24 lukem 460 1.1 lukem } else if (strcasecmp(word, "timeout") == 0) { 461 1.31.2.2 lukem curclass.timeout = DEFAULT_TIMEOUT; 462 1.31.2.3 jmc CONF_LL(timeout, arg, 30, curclass.maxtimeout); 463 1.23 lukem 464 1.26 lukem } else if (strcasecmp(word, "template") == 0) { 465 1.26 lukem if (none) 466 1.26 lukem continue; 467 1.26 lukem REASSIGN(template, EMPTYSTR(arg) ? NULL : xstrdup(arg)); 468 1.26 lukem 469 1.1 lukem } else if (strcasecmp(word, "umask") == 0) { 470 1.31.2.3 jmc u_long fumask; 471 1.1 lukem 472 1.31.2.2 lukem curclass.umask = DEFAULT_UMASK; 473 1.1 lukem if (none || EMPTYSTR(arg)) 474 1.1 lukem continue; 475 1.31.2.3 jmc errno = 0; 476 1.31.2.3 jmc endp = NULL; 477 1.31.2.3 jmc fumask = strtoul(arg, &endp, 8); 478 1.31.2.3 jmc if (errno || *arg == '\0' || *endp != '\0' || 479 1.31.2.3 jmc fumask > 0777) { 480 1.1 lukem syslog(LOG_WARNING, 481 1.1 lukem "%s line %d: invalid umask %s", 482 1.23 lukem infile, (int)line, arg); 483 1.1 lukem continue; 484 1.1 lukem } 485 1.31.2.3 jmc curclass.umask = (mode_t)fumask; 486 1.23 lukem 487 1.24 lukem } else if (strcasecmp(word, "upload") == 0) { 488 1.31.2.2 lukem CONF_FLAG(upload); 489 1.31.2.2 lukem if (! CURCLASS_FLAGS_ISSET(upload)) 490 1.31.2.2 lukem CURCLASS_FLAGS_CLR(modify); 491 1.24 lukem 492 1.1 lukem } else { 493 1.1 lukem syslog(LOG_WARNING, 494 1.1 lukem "%s line %d: unknown directive '%s'", 495 1.23 lukem infile, (int)line, word); 496 1.1 lukem continue; 497 1.1 lukem } 498 1.31.2.3 jmc nextline: 499 1.31.2.3 jmc ; 500 1.1 lukem } 501 1.26 lukem REASSIGN(template, NULL); 502 1.1 lukem fclose(f); 503 1.1 lukem } 504 1.1 lukem 505 1.1 lukem /* 506 1.1 lukem * Show file listed in curclass.display first time in, and list all the 507 1.31.2.2 lukem * files named in curclass.notify in the current directory. 508 1.31.2.2 lukem * Send back responses with the prefix `code' + "-". 509 1.31.2.2 lukem * If code == -1, flush the internal cache of directory names and return. 510 1.1 lukem */ 511 1.1 lukem void 512 1.30 lukem show_chdir_messages(int code) 513 1.1 lukem { 514 1.1 lukem static StringList *slist = NULL; 515 1.1 lukem 516 1.1 lukem struct stat st; 517 1.1 lukem struct tm *t; 518 1.1 lukem glob_t gl; 519 1.1 lukem time_t now, then; 520 1.1 lukem int age; 521 1.31.2.3 jmc char curwd[MAXPATHLEN]; 522 1.1 lukem char *cp, **rlist; 523 1.1 lukem 524 1.31.2.2 lukem if (code == -1) { 525 1.31.2.2 lukem if (slist != NULL) 526 1.31.2.2 lukem sl_free(slist, 1); 527 1.31.2.2 lukem slist = NULL; 528 1.31.2.2 lukem return; 529 1.31.2.2 lukem } 530 1.31.2.2 lukem 531 1.29 lukem if (quietmessages) 532 1.29 lukem return; 533 1.29 lukem 534 1.1 lukem /* Setup list for directory cache */ 535 1.1 lukem if (slist == NULL) 536 1.1 lukem slist = sl_init(); 537 1.22 lukem if (slist == NULL) { 538 1.22 lukem syslog(LOG_WARNING, "can't allocate memory for stringlist"); 539 1.22 lukem return; 540 1.22 lukem } 541 1.1 lukem 542 1.1 lukem /* Check if this directory has already been visited */ 543 1.31.2.3 jmc if (getcwd(curwd, sizeof(curwd) - 1) == NULL) { 544 1.13 mouse syslog(LOG_WARNING, "can't getcwd: %s", strerror(errno)); 545 1.1 lukem return; 546 1.1 lukem } 547 1.31.2.3 jmc if (sl_find(slist, curwd) != NULL) 548 1.1 lukem return; 549 1.1 lukem 550 1.31.2.3 jmc cp = xstrdup(curwd); 551 1.22 lukem if (sl_add(slist, cp) == -1) 552 1.22 lukem syslog(LOG_WARNING, "can't add `%s' to stringlist", cp); 553 1.1 lukem 554 1.1 lukem /* First check for a display file */ 555 1.31.2.1 lukem (void)display_file(curclass.display, code); 556 1.1 lukem 557 1.1 lukem /* Now see if there are any notify files */ 558 1.24 lukem if (EMPTYSTR(curclass.notify)) 559 1.1 lukem return; 560 1.1 lukem 561 1.31.2.3 jmc memset(&gl, 0, sizeof(gl)); 562 1.31.2.3 jmc if (glob(curclass.notify, GLOB_BRACE|GLOB_LIMIT, NULL, &gl) != 0 563 1.31.2.2 lukem || gl.gl_matchc == 0) { 564 1.31.2.2 lukem globfree(&gl); 565 1.1 lukem return; 566 1.31.2.2 lukem } 567 1.1 lukem time(&now); 568 1.1 lukem for (rlist = gl.gl_pathv; *rlist != NULL; rlist++) { 569 1.1 lukem if (stat(*rlist, &st) != 0) 570 1.1 lukem continue; 571 1.7 mycroft if (!S_ISREG(st.st_mode)) 572 1.1 lukem continue; 573 1.1 lukem then = st.st_mtime; 574 1.20 lukem if (code != 0) { 575 1.31.2.1 lukem reply(-code, "%s", ""); 576 1.20 lukem code = 0; 577 1.20 lukem } 578 1.31 lukem reply(-code, "Please read the file %s", *rlist); 579 1.1 lukem t = localtime(&now); 580 1.1 lukem age = 365 * t->tm_year + t->tm_yday; 581 1.1 lukem t = localtime(&then); 582 1.1 lukem age -= 365 * t->tm_year + t->tm_yday; 583 1.31 lukem reply(-code, " it was last modified on %.24s - %d day%s ago", 584 1.19 lukem ctime(&then), age, PLURAL(age)); 585 1.1 lukem } 586 1.1 lukem globfree(&gl); 587 1.1 lukem } 588 1.1 lukem 589 1.24 lukem int 590 1.31.2.1 lukem display_file(const char *file, int code) 591 1.24 lukem { 592 1.24 lukem FILE *f; 593 1.31.2.3 jmc char *buf, *p; 594 1.31.2.3 jmc char curwd[MAXPATHLEN]; 595 1.24 lukem size_t len; 596 1.31.2.2 lukem off_t lastnum; 597 1.24 lukem time_t now; 598 1.29 lukem 599 1.31.2.2 lukem lastnum = 0; 600 1.29 lukem if (quietmessages) 601 1.29 lukem return (0); 602 1.24 lukem 603 1.24 lukem if (EMPTYSTR(file)) 604 1.24 lukem return(0); 605 1.24 lukem if ((f = fopen(file, "r")) == NULL) 606 1.24 lukem return (0); 607 1.31.2.1 lukem reply(-code, "%s", ""); 608 1.24 lukem 609 1.24 lukem for (; 610 1.24 lukem (buf = fparseln(f, &len, NULL, "\0\0\0", 0)) != NULL; free(buf)) { 611 1.24 lukem if (len > 0) 612 1.24 lukem if (buf[len - 1] == '\n') 613 1.24 lukem buf[--len] = '\0'; 614 1.31 lukem cprintf(stdout, " "); 615 1.24 lukem 616 1.24 lukem for (p = buf; *p; p++) { 617 1.24 lukem if (*p == '%') { 618 1.24 lukem p++; 619 1.24 lukem switch (*p) { 620 1.25 lukem 621 1.25 lukem case 'c': 622 1.31 lukem cprintf(stdout, "%s", 623 1.25 lukem curclass.classname ? 624 1.25 lukem curclass.classname : "<unknown>"); 625 1.25 lukem break; 626 1.25 lukem 627 1.24 lukem case 'C': 628 1.31.2.3 jmc if (getcwd(curwd, sizeof(curwd)-1) 629 1.31.2.3 jmc == NULL){ 630 1.24 lukem syslog(LOG_WARNING, 631 1.24 lukem "can't getcwd: %s", 632 1.24 lukem strerror(errno)); 633 1.24 lukem continue; 634 1.24 lukem } 635 1.31.2.3 jmc cprintf(stdout, "%s", curwd); 636 1.24 lukem break; 637 1.25 lukem 638 1.24 lukem case 'E': 639 1.31.2.2 lukem if (! EMPTYSTR(emailaddr)) 640 1.31.2.2 lukem cprintf(stdout, "%s", 641 1.31.2.2 lukem emailaddr); 642 1.24 lukem break; 643 1.25 lukem 644 1.24 lukem case 'L': 645 1.31 lukem cprintf(stdout, "%s", hostname); 646 1.24 lukem break; 647 1.25 lukem 648 1.25 lukem case 'M': 649 1.31.2.2 lukem if (curclass.limit == -1) { 650 1.31 lukem cprintf(stdout, "unlimited"); 651 1.31.2.2 lukem lastnum = 0; 652 1.31.2.2 lukem } else { 653 1.31.2.3 jmc cprintf(stdout, LLF, 654 1.31.2.3 jmc (LLT)curclass.limit); 655 1.31.2.2 lukem lastnum = curclass.limit; 656 1.31.2.2 lukem } 657 1.25 lukem break; 658 1.25 lukem 659 1.25 lukem case 'N': 660 1.31.2.2 lukem cprintf(stdout, "%d", connections); 661 1.31.2.2 lukem lastnum = connections; 662 1.25 lukem break; 663 1.25 lukem 664 1.24 lukem case 'R': 665 1.31 lukem cprintf(stdout, "%s", remotehost); 666 1.24 lukem break; 667 1.25 lukem 668 1.31.2.2 lukem case 's': 669 1.31.2.2 lukem if (lastnum != 1) 670 1.31.2.2 lukem cprintf(stdout, "s"); 671 1.31.2.2 lukem break; 672 1.31.2.2 lukem 673 1.31.2.2 lukem case 'S': 674 1.31.2.2 lukem if (lastnum != 1) 675 1.31.2.2 lukem cprintf(stdout, "S"); 676 1.31.2.2 lukem break; 677 1.31.2.2 lukem 678 1.24 lukem case 'T': 679 1.24 lukem now = time(NULL); 680 1.31 lukem cprintf(stdout, "%.24s", ctime(&now)); 681 1.24 lukem break; 682 1.25 lukem 683 1.24 lukem case 'U': 684 1.31 lukem cprintf(stdout, "%s", 685 1.24 lukem pw ? pw->pw_name : "<unknown>"); 686 1.24 lukem break; 687 1.25 lukem 688 1.24 lukem case '%': 689 1.31 lukem CPUTC('%', stdout); 690 1.24 lukem break; 691 1.25 lukem 692 1.24 lukem } 693 1.31 lukem } else 694 1.31 lukem CPUTC(*p, stdout); 695 1.24 lukem } 696 1.31 lukem cprintf(stdout, "\r\n"); 697 1.24 lukem } 698 1.24 lukem 699 1.24 lukem (void)fflush(stdout); 700 1.24 lukem (void)fclose(f); 701 1.24 lukem return (1); 702 1.31.2.1 lukem } 703 1.31.2.1 lukem 704 1.31.2.1 lukem /* 705 1.31.2.1 lukem * Parse src, expanding '%' escapes, into dst (which must be at least 706 1.31.2.1 lukem * MAXPATHLEN long). 707 1.31.2.1 lukem */ 708 1.31.2.1 lukem void 709 1.31.2.1 lukem format_path(char *dst, const char *src) 710 1.31.2.1 lukem { 711 1.31.2.1 lukem size_t len; 712 1.31.2.1 lukem const char *p; 713 1.31.2.1 lukem 714 1.31.2.1 lukem dst[0] = '\0'; 715 1.31.2.1 lukem len = 0; 716 1.31.2.1 lukem if (src == NULL) 717 1.31.2.1 lukem return; 718 1.31.2.1 lukem for (p = src; *p && len < MAXPATHLEN; p++) { 719 1.31.2.1 lukem if (*p == '%') { 720 1.31.2.1 lukem p++; 721 1.31.2.1 lukem switch (*p) { 722 1.31.2.1 lukem 723 1.31.2.1 lukem case 'c': 724 1.31.2.1 lukem len += strlcpy(dst + len, curclass.classname, 725 1.31.2.1 lukem MAXPATHLEN - len); 726 1.31.2.1 lukem break; 727 1.31.2.1 lukem 728 1.31.2.1 lukem case 'd': 729 1.31.2.1 lukem len += strlcpy(dst + len, pw->pw_dir, 730 1.31.2.1 lukem MAXPATHLEN - len); 731 1.31.2.1 lukem break; 732 1.31.2.1 lukem 733 1.31.2.1 lukem case 'u': 734 1.31.2.1 lukem len += strlcpy(dst + len, pw->pw_name, 735 1.31.2.1 lukem MAXPATHLEN - len); 736 1.31.2.1 lukem break; 737 1.31.2.1 lukem 738 1.31.2.1 lukem case '%': 739 1.31.2.1 lukem dst[len++] = '%'; 740 1.31.2.1 lukem break; 741 1.31.2.1 lukem 742 1.31.2.1 lukem } 743 1.31.2.1 lukem } else 744 1.31.2.1 lukem dst[len++] = *p; 745 1.31.2.1 lukem } 746 1.31.2.1 lukem if (len < MAXPATHLEN) 747 1.31.2.1 lukem dst[len] = '\0'; 748 1.31.2.1 lukem dst[MAXPATHLEN - 1] = '\0'; 749 1.24 lukem } 750 1.24 lukem 751 1.1 lukem /* 752 1.23 lukem * Find s2 at the end of s1. If found, return a string up to (but 753 1.1 lukem * not including) s2, otherwise returns NULL. 754 1.1 lukem */ 755 1.1 lukem static char * 756 1.30 lukem strend(const char *s1, char *s2) 757 1.1 lukem { 758 1.25 lukem static char buf[MAXPATHLEN]; 759 1.1 lukem 760 1.1 lukem char *start; 761 1.1 lukem size_t l1, l2; 762 1.1 lukem 763 1.1 lukem l1 = strlen(s1); 764 1.1 lukem l2 = strlen(s2); 765 1.1 lukem 766 1.31.2.3 jmc if (l2 >= l1 || l1 >= sizeof(buf)) 767 1.1 lukem return(NULL); 768 1.1 lukem 769 1.24 lukem strlcpy(buf, s1, sizeof(buf)); 770 1.1 lukem start = buf + (l1 - l2); 771 1.1 lukem 772 1.1 lukem if (strcmp(start, s2) == 0) { 773 1.1 lukem *start = '\0'; 774 1.1 lukem return(buf); 775 1.1 lukem } else 776 1.1 lukem return(NULL); 777 1.1 lukem } 778 1.1 lukem 779 1.1 lukem static int 780 1.30 lukem filetypematch(char *types, int mode) 781 1.1 lukem { 782 1.1 lukem for ( ; types[0] != '\0'; types++) 783 1.1 lukem switch (*types) { 784 1.1 lukem case 'd': 785 1.1 lukem if (S_ISDIR(mode)) 786 1.1 lukem return(1); 787 1.1 lukem break; 788 1.1 lukem case 'f': 789 1.1 lukem if (S_ISREG(mode)) 790 1.1 lukem return(1); 791 1.1 lukem break; 792 1.1 lukem } 793 1.1 lukem return(0); 794 1.1 lukem } 795 1.1 lukem 796 1.1 lukem /* 797 1.1 lukem * Look for a conversion. If we succeed, return a pointer to the 798 1.1 lukem * command to execute for the conversion. 799 1.1 lukem * 800 1.1 lukem * The command is stored in a static array so there's no memory 801 1.1 lukem * leak problems, and not too much to change in ftpd.c. This 802 1.1 lukem * routine doesn't need to be re-entrant unless we start using a 803 1.1 lukem * multi-threaded ftpd, and that's not likely for a while... 804 1.1 lukem */ 805 1.23 lukem char ** 806 1.30 lukem do_conversion(const char *fname) 807 1.1 lukem { 808 1.1 lukem struct ftpconv *cp; 809 1.1 lukem struct stat st; 810 1.1 lukem int o_errno; 811 1.3 christos char *base = NULL; 812 1.23 lukem char *cmd, *p, *lp, **argv; 813 1.23 lukem StringList *sl; 814 1.1 lukem 815 1.1 lukem o_errno = errno; 816 1.23 lukem sl = NULL; 817 1.23 lukem cmd = NULL; 818 1.1 lukem for (cp = curclass.conversions; cp != NULL; cp = cp->next) { 819 1.5 lukem if (cp->suffix == NULL) { 820 1.5 lukem syslog(LOG_WARNING, 821 1.5 lukem "cp->suffix==NULL in conv list; SHOULDN'T HAPPEN!"); 822 1.5 lukem continue; 823 1.5 lukem } 824 1.1 lukem if ((base = strend(fname, cp->suffix)) == NULL) 825 1.1 lukem continue; 826 1.5 lukem if (cp->types == NULL || cp->disable == NULL || 827 1.1 lukem cp->command == NULL) 828 1.1 lukem continue; 829 1.1 lukem /* Is it enabled? */ 830 1.1 lukem if (strcmp(cp->disable, ".") != 0 && 831 1.1 lukem stat(cp->disable, &st) == 0) 832 1.1 lukem continue; 833 1.1 lukem /* Does the base exist? */ 834 1.1 lukem if (stat(base, &st) < 0) 835 1.1 lukem continue; 836 1.1 lukem /* Is the file type ok */ 837 1.1 lukem if (!filetypematch(cp->types, st.st_mode)) 838 1.1 lukem continue; 839 1.1 lukem break; /* "We have a winner!" */ 840 1.1 lukem } 841 1.1 lukem 842 1.1 lukem /* If we got through the list, no conversion */ 843 1.23 lukem if (cp == NULL) 844 1.23 lukem goto cleanup_do_conv; 845 1.23 lukem 846 1.23 lukem /* Split up command into an argv */ 847 1.23 lukem if ((sl = sl_init()) == NULL) 848 1.23 lukem goto cleanup_do_conv; 849 1.23 lukem cmd = xstrdup(cp->command); 850 1.23 lukem p = cmd; 851 1.23 lukem while (p) { 852 1.23 lukem NEXTWORD(p, lp); 853 1.23 lukem if (strcmp(lp, "%s") == 0) 854 1.23 lukem lp = base; 855 1.23 lukem if (sl_add(sl, xstrdup(lp)) == -1) 856 1.23 lukem goto cleanup_do_conv; 857 1.1 lukem } 858 1.1 lukem 859 1.23 lukem if (sl_add(sl, NULL) == -1) 860 1.23 lukem goto cleanup_do_conv; 861 1.23 lukem argv = sl->sl_str; 862 1.23 lukem free(cmd); 863 1.23 lukem free(sl); 864 1.23 lukem return(argv); 865 1.23 lukem 866 1.23 lukem cleanup_do_conv: 867 1.23 lukem if (sl) 868 1.23 lukem sl_free(sl, 1); 869 1.23 lukem free(cmd); 870 1.23 lukem errno = o_errno; 871 1.23 lukem return(NULL); 872 1.24 lukem } 873 1.24 lukem 874 1.24 lukem /* 875 1.26 lukem * Count the number of current connections, reading from 876 1.26 lukem * /var/run/ftpd.pids-<class> 877 1.26 lukem * Does a kill -0 on each pid in that file, and only counts 878 1.26 lukem * processes that exist (or frees the slot if it doesn't). 879 1.26 lukem * Adds getpid() to the first free slot. Truncates the file 880 1.26 lukem * if possible. 881 1.26 lukem */ 882 1.25 lukem void 883 1.30 lukem count_users(void) 884 1.25 lukem { 885 1.25 lukem char fn[MAXPATHLEN]; 886 1.25 lukem int fd, i, last; 887 1.25 lukem size_t count; 888 1.25 lukem pid_t *pids, mypid; 889 1.25 lukem struct stat sb; 890 1.25 lukem 891 1.25 lukem (void)strlcpy(fn, _PATH_CLASSPIDS, sizeof(fn)); 892 1.25 lukem (void)strlcat(fn, curclass.classname, sizeof(fn)); 893 1.25 lukem pids = NULL; 894 1.25 lukem connections = 1; 895 1.25 lukem 896 1.31.2.2 lukem if ((fd = open(fn, O_RDWR | O_CREAT, 0600)) == -1) 897 1.25 lukem return; 898 1.31.2.2 lukem if (lockf(fd, F_TLOCK, 0) == -1) 899 1.31.2.2 lukem goto cleanup_count; 900 1.25 lukem if (fstat(fd, &sb) == -1) 901 1.25 lukem goto cleanup_count; 902 1.25 lukem if ((pids = malloc(sb.st_size + sizeof(pid_t))) == NULL) 903 1.25 lukem goto cleanup_count; 904 1.25 lukem count = read(fd, pids, sb.st_size); 905 1.25 lukem if (count < 0 || count != sb.st_size) 906 1.25 lukem goto cleanup_count; 907 1.25 lukem count /= sizeof(pid_t); 908 1.25 lukem mypid = getpid(); 909 1.25 lukem last = 0; 910 1.25 lukem for (i = 0; i < count; i++) { 911 1.25 lukem if (pids[i] == 0) 912 1.25 lukem continue; 913 1.25 lukem if (kill(pids[i], 0) == -1 && errno != EPERM) { 914 1.25 lukem if (mypid != 0) { 915 1.25 lukem pids[i] = mypid; 916 1.25 lukem mypid = 0; 917 1.25 lukem last = i; 918 1.25 lukem } 919 1.25 lukem } else { 920 1.25 lukem connections++; 921 1.25 lukem last = i; 922 1.25 lukem } 923 1.25 lukem } 924 1.25 lukem if (mypid != 0) { 925 1.25 lukem if (pids[last] != 0) 926 1.25 lukem last++; 927 1.25 lukem pids[last] = mypid; 928 1.25 lukem } 929 1.25 lukem count = (last + 1) * sizeof(pid_t); 930 1.25 lukem if (lseek(fd, 0, SEEK_SET) == -1) 931 1.25 lukem goto cleanup_count; 932 1.25 lukem if (write(fd, pids, count) == -1) 933 1.25 lukem goto cleanup_count; 934 1.25 lukem (void)ftruncate(fd, count); 935 1.25 lukem 936 1.25 lukem cleanup_count: 937 1.31.2.2 lukem if (lseek(fd, 0, SEEK_SET) != -1) 938 1.31.2.2 lukem (void)lockf(fd, F_ULOCK, 0); 939 1.25 lukem close(fd); 940 1.25 lukem REASSIGN(pids, NULL); 941 1.1 lukem } 942
Indexes created Sat Oct 25 16:10:12 GMT 2025