| 1 | /* |
| 2 | * Copyright (c) 1983, 1993 |
| 3 | * The Regents of the University of California. All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
| 13 | * 3. Neither the name of the University nor the names of its contributors |
| 14 | * may be used to endorse or promote products derived from this software |
| 15 | * without specific prior written permission. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 27 | * SUCH DAMAGE. |
| 28 | * |
| 29 | * @(#)getservent.c 8.1 (Berkeley) 6/4/93 |
| 30 | * $FreeBSD: src/lib/libc/net/getservent.c,v 1.23 2007/01/09 00:28:02 imp Exp $ |
| 31 | */ |
| 32 | |
| 33 | #include <sys/param.h> |
| 34 | #include <sys/types.h> |
| 35 | #include <sys/socket.h> |
| 36 | #include <arpa/inet.h> |
| 37 | #include <errno.h> |
| 38 | #include <limits.h> |
| 39 | #include <netdb.h> |
| 40 | #include <nsswitch.h> |
| 41 | #include <stdio.h> |
| 42 | #include <string.h> |
| 43 | #include <stdlib.h> |
| 44 | #include <unistd.h> |
| 45 | #ifdef YP |
| 46 | #include <rpc/rpc.h> |
| 47 | #include <rpcsvc/yp_prot.h> |
| 48 | #include <rpcsvc/ypclnt.h> |
| 49 | #endif |
| 50 | #include "namespace.h" |
| 51 | #include "reentrant.h" |
| 52 | #include "un-namespace.h" |
| 53 | #include "netdb_private.h" |
| 54 | #ifdef NS_CACHING |
| 55 | #include "nscache.h" |
| 56 | #endif |
| 57 | #include "nss_tls.h" |
| 58 | |
| 59 | enum constants |
| 60 | { |
| 61 | SETSERVENT = 1, |
| 62 | ENDSERVENT = 2, |
| 63 | SERVENT_STORAGE_INITIAL = 1 << 10, /* 1 KByte */ |
| 64 | SERVENT_STORAGE_MAX = 1 << 20, /* 1 MByte */ |
| 65 | }; |
| 66 | |
| 67 | struct servent_mdata |
| 68 | { |
| 69 | enum nss_lookup_type how; |
| 70 | int compat_mode; |
| 71 | }; |
| 72 | |
| 73 | static const ns_src defaultsrc[] = { |
| 74 | { NSSRC_COMPAT, NS_SUCCESS }, |
| 75 | { NULL, 0 } |
| 76 | }; |
| 77 | |
| 78 | static int servent_unpack(char *, struct servent *, char **, size_t, int *); |
| 79 | |
| 80 | /* files backend declarations */ |
| 81 | struct files_state |
| 82 | { |
| 83 | FILE *fp; |
| 84 | int stayopen; |
| 85 | |
| 86 | int compat_mode_active; |
| 87 | }; |
| 88 | static void files_endstate(void *); |
| 89 | NSS_TLS_HANDLING(files); |
| 90 | |
| 91 | static int files_servent(void *, void *, va_list); |
| 92 | static int files_setservent(void *, void *, va_list); |
| 93 | |
| 94 | #ifdef YP |
| 95 | /* nis backend declarations */ |
| 96 | static int nis_servent(void *, void *, va_list); |
| 97 | static int nis_setservent(void *, void *, va_list); |
| 98 | |
| 99 | struct nis_state |
| 100 | { |
| 101 | int yp_stepping; |
| 102 | char yp_domain[MAXHOSTNAMELEN]; |
| 103 | char *yp_key; |
| 104 | int yp_keylen; |
| 105 | }; |
| 106 | static void nis_endstate(void *); |
| 107 | NSS_TLS_HANDLING(nis); |
| 108 | |
| 109 | static int nis_servent(void *, void *, va_list); |
| 110 | static int nis_setservent(void *, void *, va_list); |
| 111 | #endif |
| 112 | |
| 113 | /* compat backend declarations */ |
| 114 | static int compat_setservent(void *, void *, va_list); |
| 115 | |
| 116 | /* get** wrappers for get**_r functions declarations */ |
| 117 | struct servent_state { |
| 118 | struct servent serv; |
| 119 | char *buffer; |
| 120 | size_t bufsize; |
| 121 | }; |
| 122 | static void servent_endstate(void *); |
| 123 | NSS_TLS_HANDLING(servent); |
| 124 | |
| 125 | struct key { |
| 126 | const char *proto; |
| 127 | union { |
| 128 | const char *name; |
| 129 | int port; |
| 130 | }; |
| 131 | }; |
| 132 | |
| 133 | static int wrap_getservbyname_r(struct key, struct servent *, char *, size_t, |
| 134 | struct servent **); |
| 135 | static int wrap_getservbyport_r(struct key, struct servent *, char *, size_t, |
| 136 | struct servent **); |
| 137 | static int wrap_getservent_r(struct key, struct servent *, char *, size_t, |
| 138 | struct servent **); |
| 139 | static struct servent *getserv(int (*fn)(struct key, struct servent *, char *, |
| 140 | size_t, struct servent **), struct key); |
| 141 | |
| 142 | #ifdef NS_CACHING |
| 143 | static int serv_id_func(char *, size_t *, va_list, void *); |
| 144 | static int serv_marshal_func(char *, size_t *, void *, va_list, void *); |
| 145 | static int serv_unmarshal_func(char *, size_t, void *, va_list, void *); |
| 146 | #endif |
| 147 | |
| 148 | static int |
| 149 | servent_unpack(char *p, struct servent *serv, char **aliases, |
| 150 | size_t aliases_size, int *errnop) |
| 151 | { |
| 152 | char *cp, **q, *endp; |
| 153 | long l; |
| 154 | |
| 155 | if (*p == '#') |
| 156 | return -1; |
| 157 | |
| 158 | memset(serv, 0, sizeof(struct servent)); |
| 159 | |
| 160 | cp = strpbrk(p, "#\n"); |
| 161 | if (cp != NULL) |
| 162 | *cp = '\0'; |
| 163 | serv->s_name = p; |
| 164 | |
| 165 | p = strpbrk(p, " \t"); |
| 166 | if (p == NULL) |
| 167 | return -1; |
| 168 | *p++ = '\0'; |
| 169 | while (*p == ' ' || *p == '\t') |
| 170 | p++; |
| 171 | cp = strpbrk(p, ",/"); |
| 172 | if (cp == NULL) |
| 173 | return -1; |
| 174 | |
| 175 | *cp++ = '\0'; |
| 176 | l = strtol(p, &endp, 10); |
| 177 | if (endp == p || *endp != '\0' || l < 0 || l > USHRT_MAX) |
| 178 | return -1; |
| 179 | serv->s_port = htons((in_port_t)l); |
| 180 | serv->s_proto = cp; |
| 181 | |
| 182 | q = serv->s_aliases = aliases; |
| 183 | cp = strpbrk(cp, " \t"); |
| 184 | if (cp != NULL) |
| 185 | *cp++ = '\0'; |
| 186 | while (cp && *cp) { |
| 187 | if (*cp == ' ' || *cp == '\t') { |
| 188 | cp++; |
| 189 | continue; |
| 190 | } |
| 191 | if (q < &aliases[aliases_size - 1]) { |
| 192 | *q++ = cp; |
| 193 | } else { |
| 194 | *q = NULL; |
| 195 | *errnop = ERANGE; |
| 196 | return -1; |
| 197 | } |
| 198 | cp = strpbrk(cp, " \t"); |
| 199 | if (cp != NULL) |
| 200 | *cp++ = '\0'; |
| 201 | } |
| 202 | *q = NULL; |
| 203 | |
| 204 | return 0; |
| 205 | } |
| 206 | |
| 207 | /* files backend implementation */ |
| 208 | static void |
| 209 | files_endstate(void *p) |
| 210 | { |
| 211 | FILE * f; |
| 212 | |
| 213 | if (p == NULL) |
| 214 | return; |
| 215 | |
| 216 | f = ((struct files_state *)p)->fp; |
| 217 | if (f != NULL) |
| 218 | fclose(f); |
| 219 | |
| 220 | free(p); |
| 221 | } |
| 222 | |
| 223 | /* |
| 224 | * compat structures. compat and files sources functionalities are almost |
| 225 | * equal, so they all are managed by files_servent function |
| 226 | */ |
| 227 | static int |
| 228 | files_servent(void *retval, void *mdata, va_list ap) |
| 229 | { |
| 230 | static const ns_src compat_src[] = { |
| 231 | #ifdef YP |
| 232 | { NSSRC_NIS, NS_SUCCESS }, |
| 233 | #endif |
| 234 | { NULL, 0 } |
| 235 | }; |
| 236 | ns_dtab compat_dtab[] = { |
| 237 | #ifdef YP |
| 238 | { NSSRC_NIS, nis_servent, |
| 239 | (void *)((struct servent_mdata *)mdata)->how }, |
| 240 | #endif |
| 241 | { NULL, NULL, NULL } |
| 242 | }; |
| 243 | |
| 244 | struct files_state *st; |
| 245 | int rv; |
| 246 | int stayopen; |
| 247 | |
| 248 | struct servent_mdata *serv_mdata; |
| 249 | char *name; |
| 250 | char *proto; |
| 251 | int port; |
| 252 | |
| 253 | struct servent *serv; |
| 254 | char *buffer; |
| 255 | size_t bufsize; |
| 256 | int *errnop; |
| 257 | |
| 258 | char **aliases; |
| 259 | int aliases_size; |
| 260 | size_t linesize; |
| 261 | char *line; |
| 262 | char **cp; |
| 263 | |
| 264 | name = NULL; |
| 265 | proto = NULL; |
| 266 | serv_mdata = (struct servent_mdata *)mdata; |
| 267 | switch (serv_mdata->how) { |
| 268 | case nss_lt_name: |
| 269 | name = va_arg(ap, char *); |
| 270 | proto = va_arg(ap, char *); |
| 271 | break; |
| 272 | case nss_lt_id: |
| 273 | port = va_arg(ap, int); |
| 274 | proto = va_arg(ap, char *); |
| 275 | break; |
| 276 | case nss_lt_all: |
| 277 | break; |
| 278 | default: |
| 279 | return NS_NOTFOUND; |
| 280 | }; |
| 281 | |
| 282 | serv = va_arg(ap, struct servent *); |
| 283 | buffer = va_arg(ap, char *); |
| 284 | bufsize = va_arg(ap, size_t); |
| 285 | errnop = va_arg(ap,int *); |
| 286 | |
| 287 | *errnop = files_getstate(&st); |
| 288 | if (*errnop != 0) |
| 289 | return (NS_UNAVAIL); |
| 290 | |
| 291 | if (st->fp == NULL) |
| 292 | st->compat_mode_active = 0; |
| 293 | |
| 294 | if (st->fp == NULL && (st->fp = fopen(_PATH_SERVICES, "r")) == NULL) { |
| 295 | *errnop = errno; |
| 296 | return (NS_UNAVAIL); |
| 297 | } |
| 298 | |
| 299 | if (serv_mdata->how == nss_lt_all) |
| 300 | stayopen = 1; |
| 301 | else { |
| 302 | rewind(st->fp); |
| 303 | stayopen = st->stayopen; |
| 304 | } |
| 305 | |
| 306 | rv = NS_NOTFOUND; |
| 307 | do { |
| 308 | if (!st->compat_mode_active) { |
| 309 | if ((line = fgetln(st->fp, &linesize)) == NULL) { |
| 310 | *errnop = errno; |
| 311 | rv = NS_RETURN; |
| 312 | break; |
| 313 | } |
| 314 | |
| 315 | if (*line=='+') { |
| 316 | if (serv_mdata->compat_mode != 0) |
| 317 | st->compat_mode_active = 1; |
| 318 | } else { |
| 319 | if (bufsize <= linesize + _ALIGNBYTES + |
| 320 | sizeof(char *)) { |
| 321 | *errnop = ERANGE; |
| 322 | rv = NS_RETURN; |
| 323 | break; |
| 324 | } |
| 325 | aliases = (char **)_ALIGN(&buffer[linesize+1]); |
| 326 | aliases_size = (buffer + bufsize - |
| 327 | (char *)aliases) / sizeof(char *); |
| 328 | if (aliases_size < 1) { |
| 329 | *errnop = ERANGE; |
| 330 | rv = NS_RETURN; |
| 331 | break; |
| 332 | } |
| 333 | |
| 334 | memcpy(buffer, line, linesize); |
| 335 | buffer[linesize] = '\0'; |
| 336 | } |
| 337 | } |
| 338 | |
| 339 | if (st->compat_mode_active != 0) { |
| 340 | switch (serv_mdata->how) { |
| 341 | case nss_lt_name: |
| 342 | rv = nsdispatch(retval, compat_dtab, |
| 343 | NSDB_SERVICES_COMPAT, "getservbyname_r", |
| 344 | compat_src, name, proto, serv, buffer, |
| 345 | bufsize, errnop); |
| 346 | break; |
| 347 | case nss_lt_id: |
| 348 | rv = nsdispatch(retval, compat_dtab, |
| 349 | NSDB_SERVICES_COMPAT, "getservbyport_r", |
| 350 | compat_src, port, proto, serv, buffer, |
| 351 | bufsize, errnop); |
| 352 | break; |
| 353 | case nss_lt_all: |
| 354 | rv = nsdispatch(retval, compat_dtab, |
| 355 | NSDB_SERVICES_COMPAT, "getservent_r", |
| 356 | compat_src, serv, buffer, bufsize, errnop); |
| 357 | break; |
| 358 | } |
| 359 | |
| 360 | if (!(rv & NS_TERMINATE) || |
| 361 | serv_mdata->how != nss_lt_all) |
| 362 | st->compat_mode_active = 0; |
| 363 | |
| 364 | continue; |
| 365 | } |
| 366 | |
| 367 | rv = servent_unpack(buffer, serv, aliases, aliases_size, |
| 368 | errnop); |
| 369 | if (rv !=0 ) { |
| 370 | if (*errnop == 0) { |
| 371 | rv = NS_NOTFOUND; |
| 372 | continue; |
| 373 | } |
| 374 | else { |
| 375 | rv = NS_RETURN; |
| 376 | break; |
| 377 | } |
| 378 | } |
| 379 | |
| 380 | rv = NS_NOTFOUND; |
| 381 | switch (serv_mdata->how) { |
| 382 | case nss_lt_name: |
| 383 | if (strcmp(name, serv->s_name) == 0) |
| 384 | goto gotname; |
| 385 | for (cp = serv->s_aliases; *cp; cp++) |
| 386 | if (strcmp(name, *cp) == 0) |
| 387 | goto gotname; |
| 388 | |
| 389 | continue; |
| 390 | gotname: |
| 391 | if (proto == NULL || strcmp(serv->s_proto, proto) == 0) |
| 392 | rv = NS_SUCCESS; |
| 393 | break; |
| 394 | case nss_lt_id: |
| 395 | if (port != serv->s_port) |
| 396 | continue; |
| 397 | |
| 398 | if (proto == NULL || strcmp(serv->s_proto, proto) == 0) |
| 399 | rv = NS_SUCCESS; |
| 400 | break; |
| 401 | case nss_lt_all: |
| 402 | rv = NS_SUCCESS; |
| 403 | break; |
| 404 | } |
| 405 | |
| 406 | } while (!(rv & NS_TERMINATE)); |
| 407 | |
| 408 | if (!stayopen && st->fp != NULL) { |
| 409 | fclose(st->fp); |
| 410 | st->fp = NULL; |
| 411 | } |
| 412 | |
| 413 | if ((rv == NS_SUCCESS) && (retval != NULL)) |
| 414 | *(struct servent **)retval=serv; |
| 415 | |
| 416 | return (rv); |
| 417 | } |
| 418 | |
| 419 | static int |
| 420 | files_setservent(void *retval __unused, void *mdata, va_list ap) |
| 421 | { |
| 422 | struct files_state *st; |
| 423 | int rv; |
| 424 | int f; |
| 425 | |
| 426 | rv = files_getstate(&st); |
| 427 | if (rv != 0) |
| 428 | return (NS_UNAVAIL); |
| 429 | |
| 430 | switch ((enum constants)mdata) { |
| 431 | case SETSERVENT: |
| 432 | f = va_arg(ap,int); |
| 433 | if (st->fp == NULL) |
| 434 | st->fp = fopen(_PATH_SERVICES, "r"); |
| 435 | else |
| 436 | rewind(st->fp); |
| 437 | st->stayopen |= f; |
| 438 | break; |
| 439 | case ENDSERVENT: |
| 440 | if (st->fp != NULL) { |
| 441 | fclose(st->fp); |
| 442 | st->fp = NULL; |
| 443 | } |
| 444 | st->stayopen = 0; |
| 445 | break; |
| 446 | default: |
| 447 | break; |
| 448 | }; |
| 449 | |
| 450 | st->compat_mode_active = 0; |
| 451 | return (NS_UNAVAIL); |
| 452 | } |
| 453 | |
| 454 | /* nis backend implementation */ |
| 455 | #ifdef YP |
| 456 | static void |
| 457 | nis_endstate(void *p) |
| 458 | { |
| 459 | if (p == NULL) |
| 460 | return; |
| 461 | |
| 462 | free(((struct nis_state *)p)->yp_key); |
| 463 | free(p); |
| 464 | } |
| 465 | |
| 466 | static int |
| 467 | nis_servent(void *retval, void *mdata, va_list ap) |
| 468 | { |
| 469 | char *resultbuf, *lastkey; |
| 470 | int resultbuflen; |
| 471 | char buf[YPMAXRECORD + 2]; |
| 472 | |
| 473 | struct nis_state *st; |
| 474 | int rv; |
| 475 | |
| 476 | enum nss_lookup_type how; |
| 477 | char *name; |
| 478 | char *proto; |
| 479 | int port; |
| 480 | |
| 481 | struct servent *serv; |
| 482 | char *buffer; |
| 483 | size_t bufsize; |
| 484 | int *errnop; |
| 485 | |
| 486 | char **aliases; |
| 487 | int aliases_size; |
| 488 | |
| 489 | name = NULL; |
| 490 | proto = NULL; |
| 491 | how = (enum nss_lookup_type)mdata; |
| 492 | switch (how) { |
| 493 | case nss_lt_name: |
| 494 | name = va_arg(ap, char *); |
| 495 | proto = va_arg(ap, char *); |
| 496 | break; |
| 497 | case nss_lt_id: |
| 498 | port = va_arg(ap, int); |
| 499 | proto = va_arg(ap, char *); |
| 500 | break; |
| 501 | case nss_lt_all: |
| 502 | break; |
| 503 | default: |
| 504 | return NS_NOTFOUND; |
| 505 | }; |
| 506 | |
| 507 | serv = va_arg(ap, struct servent *); |
| 508 | buffer = va_arg(ap, char *); |
| 509 | bufsize = va_arg(ap, size_t); |
| 510 | errnop = va_arg(ap, int *); |
| 511 | |
| 512 | *errnop = nis_getstate(&st); |
| 513 | if (*errnop != 0) |
| 514 | return (NS_UNAVAIL); |
| 515 | |
| 516 | if (st->yp_domain[0] == '\0') { |
| 517 | if (getdomainname(st->yp_domain, sizeof st->yp_domain)) { |
| 518 | *errnop = errno; |
| 519 | return (NS_UNAVAIL); |
| 520 | } |
| 521 | } |
| 522 | |
| 523 | do { |
| 524 | switch (how) { |
| 525 | case nss_lt_name: |
| 526 | snprintf(buf, sizeof(buf), "%s/%s", name, proto); |
| 527 | if (yp_match(st->yp_domain, "services.byname", buf, |
| 528 | strlen(buf), &resultbuf, &resultbuflen)) { |
| 529 | rv = NS_NOTFOUND; |
| 530 | goto fin; |
| 531 | } |
| 532 | break; |
| 533 | case nss_lt_id: |
| 534 | snprintf(buf, sizeof(buf), "%d/%s", ntohs(port), |
| 535 | proto); |
| 536 | |
| 537 | /* |
| 538 | * We have to be a little flexible |
| 539 | * here. Ideally you're supposed to have both |
| 540 | * a services.byname and a services.byport |
| 541 | * map, but some systems have only |
| 542 | * services.byname. FreeBSD cheats a little by |
| 543 | * putting the services.byport information in |
| 544 | * the same map as services.byname so that |
| 545 | * either case will work. We allow for both |
| 546 | * possibilities here: if there is no |
| 547 | * services.byport map, we try services.byname |
| 548 | * instead. |
| 549 | */ |
| 550 | rv = yp_match(st->yp_domain, "services.byport", buf, |
| 551 | strlen(buf), &resultbuf, &resultbuflen); |
| 552 | if (rv) { |
| 553 | if (rv == YPERR_MAP) { |
| 554 | if (yp_match(st->yp_domain, |
| 555 | "services.byname", buf, |
| 556 | strlen(buf), &resultbuf, |
| 557 | &resultbuflen)) { |
| 558 | rv = NS_NOTFOUND; |
| 559 | goto fin; |
| 560 | } |
| 561 | } else { |
| 562 | rv = NS_NOTFOUND; |
| 563 | goto fin; |
| 564 | } |
| 565 | } |
| 566 | |
| 567 | break; |
| 568 | case nss_lt_all: |
| 569 | if (!st->yp_stepping) { |
| 570 | free(st->yp_key); |
| 571 | rv = yp_first(st->yp_domain, "services.byname", |
| 572 | &st->yp_key, &st->yp_keylen, &resultbuf, |
| 573 | &resultbuflen); |
| 574 | if (rv) { |
| 575 | rv = NS_NOTFOUND; |
| 576 | goto fin; |
| 577 | } |
| 578 | st->yp_stepping = 1; |
| 579 | } else { |
| 580 | lastkey = st->yp_key; |
| 581 | rv = yp_next(st->yp_domain, "services.byname", |
| 582 | st->yp_key, st->yp_keylen, &st->yp_key, |
| 583 | &st->yp_keylen, &resultbuf, &resultbuflen); |
| 584 | free(lastkey); |
| 585 | if (rv) { |
| 586 | st->yp_stepping = 0; |
| 587 | rv = NS_NOTFOUND; |
| 588 | goto fin; |
| 589 | } |
| 590 | } |
| 591 | break; |
| 592 | }; |
| 593 | |
| 594 | /* we need a room for additional \n symbol */ |
| 595 | if (bufsize <= |
| 596 | resultbuflen + 1 + _ALIGNBYTES + sizeof(char *)) { |
| 597 | *errnop = ERANGE; |
| 598 | rv = NS_RETURN; |
| 599 | break; |
| 600 | } |
| 601 | |
| 602 | aliases = (char **)_ALIGN(&buffer[resultbuflen + 2]); |
| 603 | aliases_size = |
| 604 | (buffer + bufsize - (char *)aliases) / sizeof(char *); |
| 605 | if (aliases_size < 1) { |
| 606 | *errnop = ERANGE; |
| 607 | rv = NS_RETURN; |
| 608 | break; |
| 609 | } |
| 610 | |
| 611 | /* |
| 612 | * servent_unpack expects lines terminated with \n -- |
| 613 | * make it happy |
| 614 | */ |
| 615 | memcpy(buffer, resultbuf, resultbuflen); |
| 616 | buffer[resultbuflen] = '\n'; |
| 617 | buffer[resultbuflen + 1] = '\0'; |
| 618 | |
| 619 | if (servent_unpack(buffer, serv, aliases, aliases_size, |
| 620 | errnop) != 0) { |
| 621 | if (*errnop == 0) |
| 622 | rv = NS_NOTFOUND; |
| 623 | else |
| 624 | rv = NS_RETURN; |
| 625 | } else |
| 626 | rv = NS_SUCCESS; |
| 627 | free(resultbuf); |
| 628 | |
| 629 | } while (!(rv & NS_TERMINATE) && how == nss_lt_all); |
| 630 | |
| 631 | fin: |
| 632 | if (rv == NS_SUCCESS && retval != NULL) |
| 633 | *(struct servent **)retval = serv; |
| 634 | |
| 635 | return (rv); |
| 636 | } |
| 637 | |
| 638 | static int |
| 639 | nis_setservent(void *result __unused, void *mdata, va_list ap __unused) |
| 640 | { |
| 641 | struct nis_state *st; |
| 642 | int rv; |
| 643 | |
| 644 | rv = nis_getstate(&st); |
| 645 | if (rv != 0) |
| 646 | return (NS_UNAVAIL); |
| 647 | |
| 648 | switch ((enum constants)mdata) { |
| 649 | case SETSERVENT: |
| 650 | case ENDSERVENT: |
| 651 | free(st->yp_key); |
| 652 | st->yp_key = NULL; |
| 653 | st->yp_stepping = 0; |
| 654 | break; |
| 655 | default: |
| 656 | break; |
| 657 | }; |
| 658 | |
| 659 | return (NS_UNAVAIL); |
| 660 | } |
| 661 | #endif |
| 662 | |
| 663 | /* compat backend implementation */ |
| 664 | static int |
| 665 | compat_setservent(void *retval, void *mdata, va_list ap) |
| 666 | { |
| 667 | static const ns_src compat_src[] = { |
| 668 | #ifdef YP |
| 669 | { NSSRC_NIS, NS_SUCCESS }, |
| 670 | #endif |
| 671 | { NULL, 0 } |
| 672 | }; |
| 673 | ns_dtab compat_dtab[] = { |
| 674 | #ifdef YP |
| 675 | { NSSRC_NIS, nis_setservent, mdata }, |
| 676 | #endif |
| 677 | { NULL, NULL, NULL } |
| 678 | }; |
| 679 | int f; |
| 680 | |
| 681 | files_setservent(retval, mdata, ap); |
| 682 | |
| 683 | switch ((enum constants)mdata) { |
| 684 | case SETSERVENT: |
| 685 | f = va_arg(ap, int); |
| 686 | nsdispatch(retval, compat_dtab, NSDB_SERVICES_COMPAT, |
| 687 | "setservent", compat_src, f); |
| 688 | break; |
| 689 | case ENDSERVENT: |
| 690 | nsdispatch(retval, compat_dtab, NSDB_SERVICES_COMPAT, |
| 691 | "endservent", compat_src); |
| 692 | break; |
| 693 | default: |
| 694 | break; |
| 695 | } |
| 696 | |
| 697 | return (NS_UNAVAIL); |
| 698 | } |
| 699 | |
| 700 | #ifdef NS_CACHING |
| 701 | static int |
| 702 | serv_id_func(char *buffer, size_t *buffer_size, va_list ap, void *cache_mdata) |
| 703 | { |
| 704 | char *name; |
| 705 | char *proto; |
| 706 | int port; |
| 707 | |
| 708 | size_t desired_size, size, size2; |
| 709 | enum nss_lookup_type lookup_type; |
| 710 | int res = NS_UNAVAIL; |
| 711 | |
| 712 | lookup_type = (enum nss_lookup_type)cache_mdata; |
| 713 | switch (lookup_type) { |
| 714 | case nss_lt_name: |
| 715 | name = va_arg(ap, char *); |
| 716 | proto = va_arg(ap, char *); |
| 717 | |
| 718 | size = strlen(name); |
| 719 | desired_size = sizeof(enum nss_lookup_type) + size + 1; |
| 720 | if (proto != NULL) { |
| 721 | size2 = strlen(proto); |
| 722 | desired_size += size2 + 1; |
| 723 | } else |
| 724 | size2 = 0; |
| 725 | |
| 726 | if (desired_size > *buffer_size) { |
| 727 | res = NS_RETURN; |
| 728 | goto fin; |
| 729 | } |
| 730 | |
| 731 | memcpy(buffer, &lookup_type, sizeof(enum nss_lookup_type)); |
| 732 | memcpy(buffer + sizeof(enum nss_lookup_type), name, size + 1); |
| 733 | |
| 734 | if (proto != NULL) |
| 735 | memcpy(buffer + sizeof(enum nss_lookup_type) + size + 1, |
| 736 | proto, size2 + 1); |
| 737 | |
| 738 | res = NS_SUCCESS; |
| 739 | break; |
| 740 | case nss_lt_id: |
| 741 | port = va_arg(ap, int); |
| 742 | proto = va_arg(ap, char *); |
| 743 | |
| 744 | desired_size = sizeof(enum nss_lookup_type) + sizeof(int); |
| 745 | if (proto != NULL) { |
| 746 | size = strlen(proto); |
| 747 | desired_size += size + 1; |
| 748 | } else |
| 749 | size = 0; |
| 750 | |
| 751 | if (desired_size > *buffer_size) { |
| 752 | res = NS_RETURN; |
| 753 | goto fin; |
| 754 | } |
| 755 | |
| 756 | memcpy(buffer, &lookup_type, sizeof(enum nss_lookup_type)); |
| 757 | memcpy(buffer + sizeof(enum nss_lookup_type), &port, |
| 758 | sizeof(int)); |
| 759 | |
| 760 | if (proto != NULL) |
| 761 | memcpy(buffer + sizeof(enum nss_lookup_type) + |
| 762 | sizeof(int), proto, size + 1); |
| 763 | |
| 764 | res = NS_SUCCESS; |
| 765 | break; |
| 766 | default: |
| 767 | /* should be unreachable */ |
| 768 | return (NS_UNAVAIL); |
| 769 | } |
| 770 | |
| 771 | fin: |
| 772 | *buffer_size = desired_size; |
| 773 | return (res); |
| 774 | } |
| 775 | |
| 776 | int |
| 777 | serv_marshal_func(char *buffer, size_t *buffer_size, void *retval __unused, |
| 778 | va_list ap, void *cache_mdata) |
| 779 | { |
| 780 | char *name; |
| 781 | char *proto; |
| 782 | int port; |
| 783 | struct servent *serv; |
| 784 | char *orig_buf; |
| 785 | size_t orig_buf_size; |
| 786 | |
| 787 | struct servent new_serv; |
| 788 | size_t desired_size; |
| 789 | char **alias; |
| 790 | char *p; |
| 791 | size_t size; |
| 792 | size_t aliases_size; |
| 793 | |
| 794 | switch ((enum nss_lookup_type)cache_mdata) { |
| 795 | case nss_lt_name: |
| 796 | name = va_arg(ap, char *); |
| 797 | proto = va_arg(ap, char *); |
| 798 | break; |
| 799 | case nss_lt_id: |
| 800 | port = va_arg(ap, int); |
| 801 | proto = va_arg(ap, char *); |
| 802 | break; |
| 803 | case nss_lt_all: |
| 804 | break; |
| 805 | default: |
| 806 | /* should be unreachable */ |
| 807 | return (NS_UNAVAIL); |
| 808 | } |
| 809 | |
| 810 | serv = va_arg(ap, struct servent *); |
| 811 | orig_buf = va_arg(ap, char *); |
| 812 | orig_buf_size = va_arg(ap, size_t); |
| 813 | |
| 814 | desired_size = _ALIGNBYTES + sizeof(struct servent) + sizeof(char *); |
| 815 | if (serv->s_name != NULL) |
| 816 | desired_size += strlen(serv->s_name) + 1; |
| 817 | if (serv->s_proto != NULL) |
| 818 | desired_size += strlen(serv->s_proto) + 1; |
| 819 | |
| 820 | aliases_size = 0; |
| 821 | if (serv->s_aliases != NULL) { |
| 822 | for (alias = serv->s_aliases; *alias; ++alias) { |
| 823 | desired_size += strlen(*alias) + 1; |
| 824 | ++aliases_size; |
| 825 | } |
| 826 | |
| 827 | desired_size += _ALIGNBYTES + |
| 828 | sizeof(char *) * (aliases_size + 1); |
| 829 | } |
| 830 | |
| 831 | if (*buffer_size < desired_size) { |
| 832 | /* this assignment is here for future use */ |
| 833 | *buffer_size = desired_size; |
| 834 | return (NS_RETURN); |
| 835 | } |
| 836 | |
| 837 | memcpy(&new_serv, serv, sizeof(struct servent)); |
| 838 | memset(buffer, 0, desired_size); |
| 839 | |
| 840 | *buffer_size = desired_size; |
| 841 | p = buffer + sizeof(struct servent) + sizeof(char *); |
| 842 | memcpy(buffer + sizeof(struct servent), &p, sizeof(char *)); |
| 843 | p = (char *)_ALIGN(p); |
| 844 | |
| 845 | if (new_serv.s_name != NULL) { |
| 846 | size = strlen(new_serv.s_name); |
| 847 | memcpy(p, new_serv.s_name, size); |
| 848 | new_serv.s_name = p; |
| 849 | p += size + 1; |
| 850 | } |
| 851 | |
| 852 | if (new_serv.s_proto != NULL) { |
| 853 | size = strlen(new_serv.s_proto); |
| 854 | memcpy(p, new_serv.s_proto, size); |
| 855 | new_serv.s_proto = p; |
| 856 | p += size + 1; |
| 857 | } |
| 858 | |
| 859 | if (new_serv.s_aliases != NULL) { |
| 860 | p = (char *)_ALIGN(p); |
| 861 | memcpy(p, new_serv.s_aliases, sizeof(char *) * aliases_size); |
| 862 | new_serv.s_aliases = (char **)p; |
| 863 | p += sizeof(char *) * (aliases_size + 1); |
| 864 | |
| 865 | for (alias = new_serv.s_aliases; *alias; ++alias) { |
| 866 | size = strlen(*alias); |
| 867 | memcpy(p, *alias, size); |
| 868 | *alias = p; |
| 869 | p += size + 1; |
| 870 | } |
| 871 | } |
| 872 | |
| 873 | memcpy(buffer, &new_serv, sizeof(struct servent)); |
| 874 | return (NS_SUCCESS); |
| 875 | } |
| 876 | |
| 877 | int |
| 878 | serv_unmarshal_func(char *buffer, size_t buffer_size, void *retval, va_list ap, |
| 879 | void *cache_mdata) |
| 880 | { |
| 881 | char *name; |
| 882 | char *proto; |
| 883 | int port; |
| 884 | struct servent *serv; |
| 885 | char *orig_buf; |
| 886 | char *p; |
| 887 | char **alias; |
| 888 | size_t orig_buf_size; |
| 889 | int *ret_errno; |
| 890 | |
| 891 | switch ((enum nss_lookup_type)cache_mdata) { |
| 892 | case nss_lt_name: |
| 893 | name = va_arg(ap, char *); |
| 894 | proto = va_arg(ap, char *); |
| 895 | break; |
| 896 | case nss_lt_id: |
| 897 | port = va_arg(ap, int); |
| 898 | proto = va_arg(ap, char *); |
| 899 | break; |
| 900 | case nss_lt_all: |
| 901 | break; |
| 902 | default: |
| 903 | /* should be unreachable */ |
| 904 | return (NS_UNAVAIL); |
| 905 | } |
| 906 | |
| 907 | serv = va_arg(ap, struct servent *); |
| 908 | orig_buf = va_arg(ap, char *); |
| 909 | orig_buf_size = va_arg(ap, size_t); |
| 910 | ret_errno = va_arg(ap, int *); |
| 911 | |
| 912 | if (orig_buf_size < |
| 913 | buffer_size - sizeof(struct servent) - sizeof(char *)) { |
| 914 | *ret_errno = ERANGE; |
| 915 | return (NS_RETURN); |
| 916 | } |
| 917 | |
| 918 | memcpy(serv, buffer, sizeof(struct servent)); |
| 919 | memcpy(&p, buffer + sizeof(struct servent), sizeof(char *)); |
| 920 | |
| 921 | orig_buf = (char *)_ALIGN(orig_buf); |
| 922 | memcpy(orig_buf, buffer + sizeof(struct servent) + sizeof(char *) + |
| 923 | (_ALIGN(p) - (size_t)p), |
| 924 | buffer_size - sizeof(struct servent) - sizeof(char *) - |
| 925 | (_ALIGN(p) - (size_t)p)); |
| 926 | p = (char *)_ALIGN(p); |
| 927 | |
| 928 | NS_APPLY_OFFSET(serv->s_name, orig_buf, p, char *); |
| 929 | NS_APPLY_OFFSET(serv->s_proto, orig_buf, p, char *); |
| 930 | if (serv->s_aliases != NULL) { |
| 931 | NS_APPLY_OFFSET(serv->s_aliases, orig_buf, p, char **); |
| 932 | |
| 933 | for (alias = serv->s_aliases; *alias; ++alias) |
| 934 | NS_APPLY_OFFSET(*alias, orig_buf, p, char *); |
| 935 | } |
| 936 | |
| 937 | if (retval != NULL) |
| 938 | *((struct servent **)retval) = serv; |
| 939 | return (NS_SUCCESS); |
| 940 | } |
| 941 | |
| 942 | NSS_MP_CACHE_HANDLING(services); |
| 943 | #endif /* NS_CACHING */ |
| 944 | |
| 945 | /* get**_r functions implementation */ |
| 946 | int |
| 947 | getservbyname_r(const char *name, const char *proto, struct servent *serv, |
| 948 | char *buffer, size_t bufsize, struct servent **result) |
| 949 | { |
| 950 | static const struct servent_mdata mdata = { nss_lt_name, 0 }; |
| 951 | static const struct servent_mdata compat_mdata = { nss_lt_name, 1 }; |
| 952 | #ifdef NS_CACHING |
| 953 | static const nss_cache_info cache_info = |
| 954 | NS_COMMON_CACHE_INFO_INITIALIZER( |
| 955 | services, (void *)nss_lt_name, |
| 956 | serv_id_func, serv_marshal_func, serv_unmarshal_func); |
| 957 | #endif /* NS_CACHING */ |
| 958 | static const ns_dtab dtab[] = { |
| 959 | { NSSRC_FILES, files_servent, (void *)&mdata }, |
| 960 | #ifdef YP |
| 961 | { NSSRC_NIS, nis_servent, (void *)nss_lt_name }, |
| 962 | #endif |
| 963 | { NSSRC_COMPAT, files_servent, (void *)&compat_mdata }, |
| 964 | #ifdef NS_CACHING |
| 965 | NS_CACHE_CB(&cache_info) |
| 966 | #endif |
| 967 | { NULL, NULL, NULL } |
| 968 | }; |
| 969 | int rv, ret_errno; |
| 970 | |
| 971 | ret_errno = 0; |
| 972 | *result = NULL; |
| 973 | rv = nsdispatch(result, dtab, NSDB_SERVICES, "getservbyname_r", |
| 974 | defaultsrc, name, proto, serv, buffer, bufsize, &ret_errno); |
| 975 | |
| 976 | if (rv == NS_SUCCESS) |
| 977 | return (0); |
| 978 | else |
| 979 | return (ret_errno); |
| 980 | } |
| 981 | |
| 982 | int |
| 983 | getservbyport_r(int port, const char *proto, struct servent *serv, |
| 984 | char *buffer, size_t bufsize, struct servent **result) |
| 985 | { |
| 986 | static const struct servent_mdata mdata = { nss_lt_id, 0 }; |
| 987 | static const struct servent_mdata compat_mdata = { nss_lt_id, 1 }; |
| 988 | #ifdef NS_CACHING |
| 989 | static const nss_cache_info cache_info = |
| 990 | NS_COMMON_CACHE_INFO_INITIALIZER( |
| 991 | services, (void *)nss_lt_id, |
| 992 | serv_id_func, serv_marshal_func, serv_unmarshal_func); |
| 993 | #endif |
| 994 | static const ns_dtab dtab[] = { |
| 995 | { NSSRC_FILES, files_servent, (void *)&mdata }, |
| 996 | #ifdef YP |
| 997 | { NSSRC_NIS, nis_servent, (void *)nss_lt_id }, |
| 998 | #endif |
| 999 | { NSSRC_COMPAT, files_servent, (void *)&compat_mdata }, |
| 1000 | #ifdef NS_CACHING |
| 1001 | NS_CACHE_CB(&cache_info) |
| 1002 | #endif |
| 1003 | { NULL, NULL, NULL } |
| 1004 | }; |
| 1005 | int rv, ret_errno; |
| 1006 | |
| 1007 | ret_errno = 0; |
| 1008 | *result = NULL; |
| 1009 | rv = nsdispatch(result, dtab, NSDB_SERVICES, "getservbyport_r", |
| 1010 | defaultsrc, port, proto, serv, buffer, bufsize, &ret_errno); |
| 1011 | |
| 1012 | if (rv == NS_SUCCESS) |
| 1013 | return (0); |
| 1014 | else |
| 1015 | return (ret_errno); |
| 1016 | } |
| 1017 | |
| 1018 | int |
| 1019 | getservent_r(struct servent *serv, char *buffer, size_t bufsize, |
| 1020 | struct servent **result) |
| 1021 | { |
| 1022 | static const struct servent_mdata mdata = { nss_lt_all, 0 }; |
| 1023 | static const struct servent_mdata compat_mdata = { nss_lt_all, 1 }; |
| 1024 | #ifdef NS_CACHING |
| 1025 | static const nss_cache_info cache_info = NS_MP_CACHE_INFO_INITIALIZER( |
| 1026 | services, (void *)nss_lt_all, |
| 1027 | serv_marshal_func, serv_unmarshal_func); |
| 1028 | #endif |
| 1029 | static const ns_dtab dtab[] = { |
| 1030 | { NSSRC_FILES, files_servent, (void *)&mdata }, |
| 1031 | #ifdef YP |
| 1032 | { NSSRC_NIS, nis_servent, (void *)nss_lt_all }, |
| 1033 | #endif |
| 1034 | { NSSRC_COMPAT, files_servent, (void *)&compat_mdata }, |
| 1035 | #ifdef NS_CACHING |
| 1036 | NS_CACHE_CB(&cache_info) |
| 1037 | #endif |
| 1038 | { NULL, NULL, NULL } |
| 1039 | }; |
| 1040 | int rv, ret_errno; |
| 1041 | |
| 1042 | ret_errno = 0; |
| 1043 | *result = NULL; |
| 1044 | rv = nsdispatch(result, dtab, NSDB_SERVICES, "getservent_r", |
| 1045 | defaultsrc, serv, buffer, bufsize, &ret_errno); |
| 1046 | |
| 1047 | if (rv == NS_SUCCESS) |
| 1048 | return (0); |
| 1049 | else |
| 1050 | return (ret_errno); |
| 1051 | } |
| 1052 | |
| 1053 | void |
| 1054 | setservent(int stayopen) |
| 1055 | { |
| 1056 | #ifdef NS_CACHING |
| 1057 | static const nss_cache_info cache_info = NS_MP_CACHE_INFO_INITIALIZER( |
| 1058 | services, (void *)nss_lt_all, |
| 1059 | NULL, NULL); |
| 1060 | #endif |
| 1061 | static const ns_dtab dtab[] = { |
| 1062 | { NSSRC_FILES, files_setservent, (void *)SETSERVENT }, |
| 1063 | #ifdef YP |
| 1064 | { NSSRC_NIS, nis_setservent, (void *)SETSERVENT }, |
| 1065 | #endif |
| 1066 | { NSSRC_COMPAT, compat_setservent, (void *)SETSERVENT }, |
| 1067 | #ifdef NS_CACHING |
| 1068 | NS_CACHE_CB(&cache_info) |
| 1069 | #endif |
| 1070 | { NULL, NULL, NULL } |
| 1071 | }; |
| 1072 | |
| 1073 | nsdispatch(NULL, dtab, NSDB_SERVICES, "setservent", defaultsrc, |
| 1074 | stayopen); |
| 1075 | } |
| 1076 | |
| 1077 | void |
| 1078 | endservent(void) |
| 1079 | { |
| 1080 | #ifdef NS_CACHING |
| 1081 | static const nss_cache_info cache_info = NS_MP_CACHE_INFO_INITIALIZER( |
| 1082 | services, (void *)nss_lt_all, |
| 1083 | NULL, NULL); |
| 1084 | #endif |
| 1085 | static const ns_dtab dtab[] = { |
| 1086 | { NSSRC_FILES, files_setservent, (void *)ENDSERVENT }, |
| 1087 | #ifdef YP |
| 1088 | { NSSRC_NIS, nis_setservent, (void *)ENDSERVENT }, |
| 1089 | #endif |
| 1090 | { NSSRC_COMPAT, compat_setservent, (void *)ENDSERVENT }, |
| 1091 | #ifdef NS_CACHING |
| 1092 | NS_CACHE_CB(&cache_info) |
| 1093 | #endif |
| 1094 | { NULL, NULL, NULL } |
| 1095 | }; |
| 1096 | |
| 1097 | nsdispatch(NULL, dtab, NSDB_SERVICES, "endservent", defaultsrc); |
| 1098 | } |
| 1099 | |
| 1100 | /* get** wrappers for get**_r functions implementation */ |
| 1101 | static void |
| 1102 | servent_endstate(void *p) |
| 1103 | { |
| 1104 | if (p == NULL) |
| 1105 | return; |
| 1106 | |
| 1107 | free(((struct servent_state *)p)->buffer); |
| 1108 | free(p); |
| 1109 | } |
| 1110 | |
| 1111 | static int |
| 1112 | wrap_getservbyname_r(struct key key, struct servent *serv, char *buffer, |
| 1113 | size_t bufsize, struct servent **res) |
| 1114 | { |
| 1115 | return (getservbyname_r(key.name, key.proto, serv, buffer, bufsize, |
| 1116 | res)); |
| 1117 | } |
| 1118 | |
| 1119 | static int |
| 1120 | wrap_getservbyport_r(struct key key, struct servent *serv, char *buffer, |
| 1121 | size_t bufsize, struct servent **res) |
| 1122 | { |
| 1123 | return (getservbyport_r(key.port, key.proto, serv, buffer, bufsize, |
| 1124 | res)); |
| 1125 | } |
| 1126 | |
| 1127 | static int |
| 1128 | wrap_getservent_r(struct key key __unused, struct servent *serv, char *buffer, |
| 1129 | size_t bufsize, struct servent **res) |
| 1130 | { |
| 1131 | return (getservent_r(serv, buffer, bufsize, res)); |
| 1132 | } |
| 1133 | |
| 1134 | static struct servent * |
| 1135 | getserv(int (*fn)(struct key, struct servent *, char *, size_t, |
| 1136 | struct servent **), struct key key) |
| 1137 | { |
| 1138 | int rv; |
| 1139 | struct servent *res; |
| 1140 | struct servent_state * st; |
| 1141 | |
| 1142 | rv = servent_getstate(&st); |
| 1143 | if (rv != 0) { |
| 1144 | errno = rv; |
| 1145 | return NULL; |
| 1146 | } |
| 1147 | |
| 1148 | if (st->buffer == NULL) { |
| 1149 | st->buffer = malloc(SERVENT_STORAGE_INITIAL); |
| 1150 | if (st->buffer == NULL) |
| 1151 | return (NULL); |
| 1152 | st->bufsize = SERVENT_STORAGE_INITIAL; |
| 1153 | } |
| 1154 | do { |
| 1155 | rv = fn(key, &st->serv, st->buffer, st->bufsize, &res); |
| 1156 | if (res == NULL && rv == ERANGE) { |
| 1157 | free(st->buffer); |
| 1158 | if ((st->bufsize << 1) > SERVENT_STORAGE_MAX) { |
| 1159 | st->buffer = NULL; |
| 1160 | errno = ERANGE; |
| 1161 | return (NULL); |
| 1162 | } |
| 1163 | st->bufsize <<= 1; |
| 1164 | st->buffer = malloc(st->bufsize); |
| 1165 | if (st->buffer == NULL) |
| 1166 | return (NULL); |
| 1167 | } |
| 1168 | } while (res == NULL && rv == ERANGE); |
| 1169 | if (rv != 0) |
| 1170 | errno = rv; |
| 1171 | |
| 1172 | return (res); |
| 1173 | } |
| 1174 | |
| 1175 | struct servent * |
| 1176 | getservbyname(const char *name, const char *proto) |
| 1177 | { |
| 1178 | struct key key; |
| 1179 | |
| 1180 | key.name = name; |
| 1181 | key.proto = proto; |
| 1182 | |
| 1183 | return (getserv(wrap_getservbyname_r, key)); |
| 1184 | } |
| 1185 | |
| 1186 | struct servent * |
| 1187 | getservbyport(int port, const char *proto) |
| 1188 | { |
| 1189 | struct key key; |
| 1190 | |
| 1191 | key.port = port; |
| 1192 | key.proto = proto; |
| 1193 | |
| 1194 | return (getserv(wrap_getservbyport_r, key)); |
| 1195 | } |
| 1196 | |
| 1197 | struct servent * |
| 1198 | getservent(void) |
| 1199 | { |
| 1200 | struct key key; |
| 1201 | |
| 1202 | key.proto = NULL; |
| 1203 | key.port = 0; |
| 1204 | |
| 1205 | return (getserv(wrap_getservent_r, key)); |
| 1206 | } |