| File: | src/usr.sbin/ypldap/yp.c |
| Warning: | line 273, column 2 Value stored to 'caller' is never read |
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| 1 | /* $OpenBSD: yp.c,v 1.19 2017/12/07 05:21:57 zhuk Exp $ */ |
| 2 | /* |
| 3 | * Copyright (c) 2008 Pierre-Yves Ritschard <pyr@openbsd.org> |
| 4 | * |
| 5 | * Permission to use, copy, modify, and distribute this software for any |
| 6 | * purpose with or without fee is hereby granted, provided that the above |
| 7 | * copyright notice and this permission notice appear in all copies. |
| 8 | * |
| 9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 10 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 11 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 12 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 13 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 14 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 15 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 16 | */ |
| 17 | |
| 18 | #include <sys/types.h> |
| 19 | #include <sys/queue.h> |
| 20 | #include <sys/socket.h> |
| 21 | #include <sys/select.h> |
| 22 | #include <sys/tree.h> |
| 23 | |
| 24 | #include <netinet/in.h> |
| 25 | #include <arpa/inet.h> |
| 26 | |
| 27 | #include <errno(*__errno()).h> |
| 28 | #include <event.h> |
| 29 | #include <fcntl.h> |
| 30 | #include <unistd.h> |
| 31 | #include <pwd.h> |
| 32 | #include <stdio.h> |
| 33 | #include <stdlib.h> |
| 34 | #include <string.h> |
| 35 | #include <limits.h> |
| 36 | |
| 37 | #include <rpc/rpc.h> |
| 38 | #include <rpc/xdr.h> |
| 39 | #include <rpc/pmap_clnt.h> |
| 40 | #include <rpc/pmap_prot.h> |
| 41 | #include <rpc/pmap_rmt.h> |
| 42 | #include <rpcsvc/yp.h> |
| 43 | #include <rpcsvc/ypclnt.h> |
| 44 | |
| 45 | #include "ypldap.h" |
| 46 | |
| 47 | void yp_dispatch(struct svc_req *, SVCXPRT *); |
| 48 | void yp_disable_events(void); |
| 49 | void yp_fd_event(int, short, void *); |
| 50 | int yp_check(struct svc_req *); |
| 51 | int yp_valid_domain(char *, struct ypresp_val *); |
| 52 | void yp_make_val(struct ypresp_val *, char *, int); |
| 53 | void yp_make_keyval(struct ypresp_key_val *, char *, char *); |
| 54 | |
| 55 | static struct env *env; |
| 56 | |
| 57 | struct yp_event { |
| 58 | TAILQ_ENTRY(yp_event)struct { struct yp_event *tqe_next; struct yp_event **tqe_prev ; } ye_entry; |
| 59 | struct event ye_event; |
| 60 | }; |
| 61 | |
| 62 | struct yp_data { |
| 63 | SVCXPRT *yp_trans_udp; |
| 64 | SVCXPRT *yp_trans_tcp; |
| 65 | TAILQ_HEAD(, yp_event)struct { struct yp_event *tqh_first; struct yp_event **tqh_last ; } yd_events; |
| 66 | }; |
| 67 | |
| 68 | void |
| 69 | yp_disable_events(void) |
| 70 | { |
| 71 | struct yp_event *ye; |
| 72 | |
| 73 | while ((ye = TAILQ_FIRST(&env->sc_yp->yd_events)((&env->sc_yp->yd_events)->tqh_first)) != NULL((void*)0)) { |
| 74 | TAILQ_REMOVE(&env->sc_yp->yd_events, ye, ye_entry)do { if (((ye)->ye_entry.tqe_next) != ((void*)0)) (ye)-> ye_entry.tqe_next->ye_entry.tqe_prev = (ye)->ye_entry.tqe_prev ; else (&env->sc_yp->yd_events)->tqh_last = (ye) ->ye_entry.tqe_prev; *(ye)->ye_entry.tqe_prev = (ye)-> ye_entry.tqe_next; ; ; } while (0); |
| 75 | event_del(&ye->ye_event); |
| 76 | free(ye); |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | void |
| 81 | yp_enable_events(void) |
| 82 | { |
| 83 | int i; |
| 84 | extern fd_set *__svc_fdset; |
| 85 | extern int __svc_fdsetsize; |
| 86 | struct yp_event *ye; |
| 87 | |
| 88 | for (i = 0; i < __svc_fdsetsize; i++) { |
| 89 | if (FD_ISSET(i, __svc_fdset)__fd_isset((i), (__svc_fdset))) { |
| 90 | if ((ye = calloc(1, sizeof(*ye))) == NULL((void*)0)) |
| 91 | fatal(NULL((void*)0)); |
| 92 | event_set(&ye->ye_event, i, EV_READ0x02, yp_fd_event, NULL((void*)0)); |
| 93 | event_add(&ye->ye_event, NULL((void*)0)); |
| 94 | TAILQ_INSERT_TAIL(&env->sc_yp->yd_events, ye, ye_entry)do { (ye)->ye_entry.tqe_next = ((void*)0); (ye)->ye_entry .tqe_prev = (&env->sc_yp->yd_events)->tqh_last; * (&env->sc_yp->yd_events)->tqh_last = (ye); (& env->sc_yp->yd_events)->tqh_last = &(ye)->ye_entry .tqe_next; } while (0); |
| 95 | } |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | void |
| 100 | yp_fd_event(int fd, short event, void *p) |
| 101 | { |
| 102 | svc_getreq_common(fd); |
| 103 | yp_disable_events(); |
| 104 | yp_enable_events(); |
| 105 | } |
| 106 | |
| 107 | void |
| 108 | yp_init(struct env *x_env) |
| 109 | { |
| 110 | struct yp_data *yp; |
| 111 | |
| 112 | if ((yp = calloc(1, sizeof(*yp))) == NULL((void*)0)) |
| 113 | fatal(NULL((void*)0)); |
| 114 | TAILQ_INIT(&yp->yd_events)do { (&yp->yd_events)->tqh_first = ((void*)0); (& yp->yd_events)->tqh_last = &(&yp->yd_events) ->tqh_first; } while (0); |
| 115 | |
| 116 | env = x_env; |
| 117 | env->sc_yp = yp; |
| 118 | |
| 119 | (void)pmap_unset(YPPROG((u_long)100004), YPVERS((u_long)2)); |
| 120 | |
| 121 | if ((yp->yp_trans_udp = svcudp_create(RPC_ANYSOCK-1)) == NULL((void*)0)) |
| 122 | fatal("cannot create udp service"); |
| 123 | if ((yp->yp_trans_tcp = svctcp_create(RPC_ANYSOCK-1, 0, 0)) == NULL((void*)0)) |
| 124 | fatal("cannot create tcp service"); |
| 125 | |
| 126 | if (!svc_register(yp->yp_trans_udp, YPPROG((u_long)100004), YPVERS((u_long)2), |
| 127 | yp_dispatch, IPPROTO_UDP17)) { |
| 128 | fatal("unable to register (YPPROG, YPVERS, udp)"); |
| 129 | } |
| 130 | if (!svc_register(yp->yp_trans_tcp, YPPROG((u_long)100004), YPVERS((u_long)2), |
| 131 | yp_dispatch, IPPROTO_TCP6)) { |
| 132 | fatal("unable to register (YPPROG, YPVERS, tcp)"); |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | /* |
| 137 | * lots of inspiration from ypserv by Mats O Jansson |
| 138 | */ |
| 139 | void |
| 140 | yp_dispatch(struct svc_req *req, SVCXPRT *trans) |
| 141 | { |
| 142 | xdrproc_t xdr_argument; |
| 143 | xdrproc_t xdr_result; |
| 144 | char *result; |
| 145 | char *(*cb)(char *, struct svc_req *); |
| 146 | union { |
| 147 | domainname ypproc_domain_2_arg; |
| 148 | domainname ypproc_domain_nonack_2_arg; |
| 149 | ypreq_key ypproc_match_2_arg; |
| 150 | ypreq_nokey ypproc_first_2_arg; |
| 151 | ypreq_key ypproc_next_2_arg; |
| 152 | ypreq_xfr ypproc_xfr_2_arg; |
| 153 | ypreq_nokey ypproc_all_2_arg; |
| 154 | ypreq_nokey ypproc_master_2_arg; |
| 155 | ypreq_nokey ypproc_order_2_arg; |
| 156 | domainname ypproc_maplist_2_arg; |
| 157 | } argument; |
| 158 | |
| 159 | xdr_argument = (xdrproc_t) xdr_void; |
| 160 | xdr_result = (xdrproc_t) xdr_void; |
| 161 | cb = NULL((void*)0); |
| 162 | switch (req->rq_proc) { |
| 163 | case YPPROC_NULL((u_long)0): |
| 164 | xdr_argument = (xdrproc_t) xdr_void; |
| 165 | xdr_result = (xdrproc_t) xdr_void; |
| 166 | if (yp_check(req) == -1) |
| 167 | return; |
| 168 | result = NULL((void*)0); |
| 169 | if (!svc_sendreply(trans, (xdrproc_t) xdr_void, |
| 170 | (void *)&result)) |
| 171 | svcerr_systemerr(trans); |
| 172 | return; |
| 173 | case YPPROC_DOMAIN((u_long)1): |
| 174 | xdr_argument = (xdrproc_t) xdr_domainname; |
| 175 | xdr_result = (xdrproc_t) xdr_bool; |
| 176 | if (yp_check(req) == -1) |
| 177 | return; |
| 178 | cb = (void *)ypproc_domain_2_svc; |
| 179 | break; |
| 180 | case YPPROC_DOMAIN_NONACK((u_long)2): |
| 181 | xdr_argument = (xdrproc_t) xdr_domainname; |
| 182 | xdr_result = (xdrproc_t) xdr_bool; |
| 183 | if (yp_check(req) == -1) |
| 184 | return; |
| 185 | cb = (void *)ypproc_domain_nonack_2_svc; |
| 186 | break; |
| 187 | case YPPROC_MATCH((u_long)3): |
| 188 | xdr_argument = (xdrproc_t) xdr_ypreq_key; |
| 189 | xdr_result = (xdrproc_t) xdr_ypresp_val; |
| 190 | if (yp_check(req) == -1) |
| 191 | return; |
| 192 | cb = (void *)ypproc_match_2_svc; |
| 193 | break; |
| 194 | case YPPROC_FIRST((u_long)4): |
| 195 | xdr_argument = (xdrproc_t) xdr_ypreq_nokey; |
| 196 | xdr_result = (xdrproc_t) xdr_ypresp_key_val; |
| 197 | if (yp_check(req) == -1) |
| 198 | return; |
| 199 | cb = (void *)ypproc_first_2_svc; |
| 200 | break; |
| 201 | case YPPROC_NEXT((u_long)5): |
| 202 | xdr_argument = (xdrproc_t) xdr_ypreq_key; |
| 203 | xdr_result = (xdrproc_t) xdr_ypresp_key_val; |
| 204 | if (yp_check(req) == -1) |
| 205 | return; |
| 206 | cb = (void *)ypproc_next_2_svc; |
| 207 | break; |
| 208 | case YPPROC_XFR((u_long)6): |
| 209 | if (yp_check(req) == -1) |
| 210 | return; |
| 211 | svcerr_noproc(trans); |
| 212 | return; |
| 213 | case YPPROC_CLEAR((u_long)7): |
| 214 | log_debug("ypproc_clear"); |
| 215 | if (yp_check(req) == -1) |
| 216 | return; |
| 217 | svcerr_noproc(trans); |
| 218 | return; |
| 219 | case YPPROC_ALL((u_long)8): |
| 220 | log_debug("ypproc_all"); |
| 221 | xdr_argument = (xdrproc_t) xdr_ypreq_nokey; |
| 222 | xdr_result = (xdrproc_t) xdr_ypresp_all; |
| 223 | if (yp_check(req) == -1) |
| 224 | return; |
| 225 | cb = (void *)ypproc_all_2_svc; |
| 226 | break; |
| 227 | case YPPROC_MASTER((u_long)9): |
| 228 | xdr_argument = (xdrproc_t) xdr_ypreq_nokey; |
| 229 | xdr_result = (xdrproc_t) xdr_ypresp_master; |
| 230 | if (yp_check(req) == -1) |
| 231 | return; |
| 232 | cb = (void *)ypproc_master_2_svc; |
| 233 | break; |
| 234 | case YPPROC_ORDER((u_long)10): |
| 235 | log_debug("ypproc_order"); |
| 236 | if (yp_check(req) == -1) |
| 237 | return; |
| 238 | svcerr_noproc(trans); |
| 239 | return; |
| 240 | case YPPROC_MAPLIST((u_long)11): |
| 241 | xdr_argument = (xdrproc_t) xdr_domainname; |
| 242 | xdr_result = (xdrproc_t) xdr_ypresp_maplist; |
| 243 | if (yp_check(req) == -1) |
| 244 | return; |
| 245 | cb = (void *)ypproc_maplist_2_svc; |
| 246 | break; |
| 247 | default: |
| 248 | svcerr_noproc(trans); |
| 249 | return; |
| 250 | } |
| 251 | (void)memset(&argument, 0, sizeof(argument)); |
| 252 | |
| 253 | if (!svc_getargs(trans, xdr_argument, (caddr_t)&argument)(*(trans)->xp_ops->xp_getargs)((trans), (xdr_argument), ((caddr_t)&argument))) { |
| 254 | svcerr_decode(trans); |
| 255 | return; |
| 256 | } |
| 257 | result = (*cb)((char *)&argument, req); |
| 258 | if (result != NULL((void*)0) && !svc_sendreply(trans, xdr_result, result)) |
| 259 | svcerr_systemerr(trans); |
| 260 | if (!svc_freeargs(trans, xdr_argument, (caddr_t)&argument)(*(trans)->xp_ops->xp_freeargs)((trans), (xdr_argument) , ((caddr_t)&argument))) { |
| 261 | /* |
| 262 | * ypserv does it too. |
| 263 | */ |
| 264 | fatal("unable to free arguments"); |
| 265 | } |
| 266 | } |
| 267 | |
| 268 | int |
| 269 | yp_check(struct svc_req *req) |
| 270 | { |
| 271 | struct sockaddr_in *caller; |
| 272 | |
| 273 | caller = svc_getcaller(req->rq_xprt)(&(req->rq_xprt)->xp_raddr); |
Value stored to 'caller' is never read | |
| 274 | /* |
| 275 | * We might want to know who we allow here. |
| 276 | */ |
| 277 | return (0); |
| 278 | } |
| 279 | |
| 280 | int |
| 281 | yp_valid_domain(char *domain, struct ypresp_val *res) |
| 282 | { |
| 283 | if (domain == NULL((void*)0)) { |
| 284 | log_debug("NULL domain !"); |
| 285 | return (-1); |
| 286 | } |
| 287 | if (strcmp(domain, env->sc_domainname) != 0) { |
| 288 | res->stat = YP_NODOM; |
| 289 | return (-1); |
| 290 | } |
| 291 | return (0); |
| 292 | } |
| 293 | |
| 294 | bool_tint32_t * |
| 295 | ypproc_domain_2_svc(domainname *arg, struct svc_req *req) |
| 296 | { |
| 297 | static bool_tint32_t res; |
| 298 | |
| 299 | res = (bool_tint32_t)1; |
| 300 | if (strcmp(*arg, env->sc_domainname) != 0) |
| 301 | res = (bool_tint32_t)0; |
| 302 | return (&res); |
| 303 | } |
| 304 | |
| 305 | bool_tint32_t * |
| 306 | ypproc_domain_nonack_2_svc(domainname *arg, struct svc_req *req) |
| 307 | { |
| 308 | static bool_tint32_t res; |
| 309 | |
| 310 | if (strcmp(*arg, env->sc_domainname) != 0) |
| 311 | return NULL((void*)0); |
| 312 | res = (bool_tint32_t)1; |
| 313 | return (&res); |
| 314 | } |
| 315 | |
| 316 | ypresp_val * |
| 317 | ypproc_match_2_svc(ypreq_key *arg, struct svc_req *req) |
| 318 | { |
| 319 | struct userent ukey; |
| 320 | struct userent *ue; |
| 321 | struct groupent gkey; |
| 322 | struct groupent *ge; |
| 323 | static struct ypresp_val res; |
| 324 | const char *estr; |
| 325 | char *bp, *cp; |
| 326 | char key[YPMAXRECORD1024+1]; |
| 327 | |
| 328 | log_debug("matching '%.*s' in map %s", arg->key.keydat_len, |
| 329 | arg->key.keydat_val, arg->map); |
| 330 | |
| 331 | if (yp_valid_domain(arg->domain, (struct ypresp_val *)&res) == -1) |
| 332 | return (&res); |
| 333 | |
| 334 | if (env->sc_user_names == NULL((void*)0)) { |
| 335 | /* |
| 336 | * tree not ready. |
| 337 | */ |
| 338 | return (NULL((void*)0)); |
| 339 | } |
| 340 | |
| 341 | if (arg->key.keydat_len > YPMAXRECORD1024) { |
| 342 | log_debug("argument too long"); |
| 343 | return (NULL((void*)0)); |
| 344 | } |
| 345 | memset(key, 0, sizeof(key)); |
| 346 | (void)strncpy(key, arg->key.keydat_val, arg->key.keydat_len); |
| 347 | |
| 348 | if (strcmp(arg->map, "passwd.byname") == 0 || |
| 349 | strcmp(arg->map, "master.passwd.byname") == 0) { |
| 350 | ukey.ue_line = key; |
| 351 | if ((ue = RB_FIND(user_name_tree, env->sc_user_names,user_name_tree_RB_FIND(env->sc_user_names, &ukey) |
| 352 | &ukey)user_name_tree_RB_FIND(env->sc_user_names, &ukey)) == NULL((void*)0)) { |
| 353 | res.stat = YP_NOKEY; |
| 354 | return (&res); |
| 355 | } |
| 356 | |
| 357 | yp_make_val(&res, ue->ue_line, 1); |
| 358 | return (&res); |
| 359 | } else if (strcmp(arg->map, "passwd.byuid") == 0 || |
| 360 | strcmp(arg->map, "master.passwd.byuid") == 0) { |
| 361 | ukey.ue_uid = strtonum(key, 0, UID_MAX(2147483647 *2U +1U), &estr); |
| 362 | if (estr) { |
| 363 | res.stat = YP_BADARGS; |
| 364 | return (&res); |
| 365 | } |
| 366 | |
| 367 | if ((ue = RB_FIND(user_uid_tree, &env->sc_user_uids,user_uid_tree_RB_FIND(&env->sc_user_uids, &ukey) |
| 368 | &ukey)user_uid_tree_RB_FIND(&env->sc_user_uids, &ukey)) == NULL((void*)0)) { |
| 369 | res.stat = YP_NOKEY; |
| 370 | return (&res); |
| 371 | } |
| 372 | |
| 373 | yp_make_val(&res, ue->ue_line, 1); |
| 374 | return (&res); |
| 375 | } else if (strcmp(arg->map, "group.bygid") == 0) { |
| 376 | gkey.ge_gid = strtonum(key, 0, GID_MAX(2147483647 *2U +1U), &estr); |
| 377 | if (estr) { |
| 378 | res.stat = YP_BADARGS; |
| 379 | return (&res); |
| 380 | } |
| 381 | if ((ge = RB_FIND(group_gid_tree, &env->sc_group_gids,group_gid_tree_RB_FIND(&env->sc_group_gids, &gkey) |
| 382 | &gkey)group_gid_tree_RB_FIND(&env->sc_group_gids, &gkey)) == NULL((void*)0)) { |
| 383 | res.stat = YP_NOKEY; |
| 384 | return (&res); |
| 385 | } |
| 386 | |
| 387 | yp_make_val(&res, ge->ge_line, 1); |
| 388 | return (&res); |
| 389 | } else if (strcmp(arg->map, "group.byname") == 0) { |
| 390 | gkey.ge_line = key; |
| 391 | if ((ge = RB_FIND(group_name_tree, env->sc_group_names,group_name_tree_RB_FIND(env->sc_group_names, &gkey) |
| 392 | &gkey)group_name_tree_RB_FIND(env->sc_group_names, &gkey)) == NULL((void*)0)) { |
| 393 | res.stat = YP_NOKEY; |
| 394 | return (&res); |
| 395 | } |
| 396 | |
| 397 | yp_make_val(&res, ge->ge_line, 1); |
| 398 | return (&res); |
| 399 | } else if (strcmp(arg->map, "netid.byname") == 0) { |
| 400 | bp = cp = key; |
| 401 | |
| 402 | if (strncmp(bp, "unix.", strlen("unix.")) != 0) { |
| 403 | res.stat = YP_BADARGS; |
| 404 | return (&res); |
| 405 | } |
| 406 | |
| 407 | bp += strlen("unix."); |
| 408 | |
| 409 | if (*bp == '\0') { |
| 410 | res.stat = YP_BADARGS; |
| 411 | return (&res); |
| 412 | } |
| 413 | |
| 414 | if (!(cp = strsep(&bp, "@"))) { |
| 415 | res.stat = YP_BADARGS; |
| 416 | return (&res); |
| 417 | } |
| 418 | |
| 419 | if (strcmp(bp, arg->domain) != 0) { |
| 420 | res.stat = YP_BADARGS; |
| 421 | return (&res); |
| 422 | } |
| 423 | |
| 424 | ukey.ue_uid = strtonum(cp, 0, UID_MAX(2147483647 *2U +1U), &estr); |
| 425 | if (estr) { |
| 426 | res.stat = YP_BADARGS; |
| 427 | return (&res); |
| 428 | } |
| 429 | |
| 430 | if ((ue = RB_FIND(user_uid_tree, &env->sc_user_uids,user_uid_tree_RB_FIND(&env->sc_user_uids, &ukey) |
| 431 | &ukey)user_uid_tree_RB_FIND(&env->sc_user_uids, &ukey)) == NULL((void*)0)) { |
| 432 | res.stat = YP_NOKEY; |
| 433 | return (&res); |
| 434 | } |
| 435 | |
| 436 | yp_make_val(&res, ue->ue_netid_line, 0); |
| 437 | return (&res); |
| 438 | |
| 439 | } else { |
| 440 | log_debug("unknown map %s", arg->map); |
| 441 | res.stat = YP_NOMAP; |
| 442 | return (&res); |
| 443 | } |
| 444 | } |
| 445 | |
| 446 | ypresp_key_val * |
| 447 | ypproc_first_2_svc(ypreq_nokey *arg, struct svc_req *req) |
| 448 | { |
| 449 | static struct ypresp_key_val res; |
| 450 | |
| 451 | if (yp_valid_domain(arg->domain, (struct ypresp_val *)&res) == -1) |
| 452 | return (&res); |
| 453 | |
| 454 | if (strcmp(arg->map, "passwd.byname") == 0 || |
| 455 | strcmp(arg->map, "master.passwd.byname") == 0) { |
| 456 | if (env->sc_user_lines == NULL((void*)0)) |
| 457 | return (NULL((void*)0)); |
| 458 | |
| 459 | yp_make_keyval(&res, env->sc_user_lines, env->sc_user_lines); |
| 460 | } else if (strcmp(arg->map, "group.byname") == 0) { |
| 461 | if (env->sc_group_lines == NULL((void*)0)) |
| 462 | return (NULL((void*)0)); |
| 463 | |
| 464 | yp_make_keyval(&res, env->sc_group_lines, env->sc_group_lines); |
| 465 | } else { |
| 466 | log_debug("unknown map %s", arg->map); |
| 467 | res.stat = YP_NOMAP; |
| 468 | } |
| 469 | |
| 470 | return (&res); |
| 471 | } |
| 472 | |
| 473 | ypresp_key_val * |
| 474 | ypproc_next_2_svc(ypreq_key *arg, struct svc_req *req) |
| 475 | { |
| 476 | struct userent ukey; |
| 477 | struct userent *ue; |
| 478 | struct groupent gkey; |
| 479 | struct groupent *ge; |
| 480 | char *line; |
| 481 | static struct ypresp_key_val res; |
| 482 | char key[YPMAXRECORD1024+1]; |
| 483 | |
| 484 | if (yp_valid_domain(arg->domain, (struct ypresp_val *)&res) == -1) |
| 485 | return (&res); |
| 486 | |
| 487 | if (strcmp(arg->map, "passwd.byname") == 0 || |
| 488 | strcmp(arg->map, "master.passwd.byname") == 0) { |
| 489 | memset(key, 0, sizeof(key)); |
| 490 | (void)strncpy(key, arg->key.keydat_val, |
| 491 | arg->key.keydat_len); |
| 492 | ukey.ue_line = key; |
| 493 | if ((ue = RB_NFIND(user_name_tree, env->sc_user_names,user_name_tree_RB_NFIND(env->sc_user_names, &ukey) |
| 494 | &ukey)user_name_tree_RB_NFIND(env->sc_user_names, &ukey)) == NULL((void*)0)) { |
| 495 | res.stat = YP_NOKEY; |
| 496 | return (&res); |
| 497 | } |
| 498 | line = ue->ue_line + (strlen(ue->ue_line) + 1); |
| 499 | line = line + (strlen(line) + 1); |
| 500 | yp_make_keyval(&res, line, line); |
| 501 | return (&res); |
| 502 | |
| 503 | |
| 504 | } else if (strcmp(arg->map, "group.byname") == 0) { |
| 505 | memset(key, 0, sizeof(key)); |
| 506 | (void)strncpy(key, arg->key.keydat_val, |
| 507 | arg->key.keydat_len); |
| 508 | |
| 509 | gkey.ge_line = key; |
| 510 | if ((ge = RB_NFIND(group_name_tree, env->sc_group_names,group_name_tree_RB_NFIND(env->sc_group_names, &gkey) |
| 511 | &gkey)group_name_tree_RB_NFIND(env->sc_group_names, &gkey)) == NULL((void*)0)) { |
| 512 | res.stat = YP_NOKEY; |
| 513 | return (&res); |
| 514 | } |
| 515 | |
| 516 | line = ge->ge_line + (strlen(ge->ge_line) + 1); |
| 517 | line = line + (strlen(line) + 1); |
| 518 | yp_make_keyval(&res, line, line); |
| 519 | return (&res); |
| 520 | } else { |
| 521 | log_debug("unknown map %s", arg->map); |
| 522 | res.stat = YP_NOMAP; |
| 523 | return (&res); |
| 524 | } |
| 525 | } |
| 526 | |
| 527 | ypresp_all * |
| 528 | ypproc_all_2_svc(ypreq_nokey *arg, struct svc_req *req) |
| 529 | { |
| 530 | static struct ypresp_all res; |
| 531 | |
| 532 | if (yp_valid_domain(arg->domain, (struct ypresp_val *)&res) == -1) |
| 533 | return (&res); |
| 534 | |
| 535 | svcerr_auth(req->rq_xprt, AUTH_FAILED); |
| 536 | return (NULL((void*)0)); |
| 537 | } |
| 538 | |
| 539 | ypresp_master * |
| 540 | ypproc_master_2_svc(ypreq_nokey *arg, struct svc_req *req) |
| 541 | { |
| 542 | static struct ypresp_master res; |
| 543 | static char master[YPMAXPEER64 + 1]; |
| 544 | |
| 545 | memset(&res, 0, sizeof(res)); |
| 546 | if (yp_valid_domain(arg->domain, (struct ypresp_val *)&res) == -1) |
| 547 | return (&res); |
| 548 | if (gethostname(master, sizeof(master)) == 0) { |
| 549 | res.peer = (peername)master; |
| 550 | res.stat = YP_TRUE; |
| 551 | } else |
| 552 | res.stat = YP_NOKEY; |
| 553 | return (&res); |
| 554 | } |
| 555 | |
| 556 | ypresp_maplist * |
| 557 | ypproc_maplist_2_svc(domainname *arg, struct svc_req *req) |
| 558 | { |
| 559 | size_t i; |
| 560 | static struct { |
| 561 | char *name; |
| 562 | int cond; |
| 563 | } mapnames[] = { |
| 564 | { "passwd.byname", YPMAP_PASSWD_BYNAME0x00000001 }, |
| 565 | { "passwd.byuid", YPMAP_PASSWD_BYUID0x00000002 }, |
| 566 | { "master.passwd.byname", YPMAP_MASTER_PASSWD_BYNAME0x00000004 }, |
| 567 | { "master.passwd.byuid", YPMAP_MASTER_PASSWD_BYUID0x00000008 }, |
| 568 | { "group.byname", YPMAP_GROUP_BYNAME0x00000010 }, |
| 569 | { "group.bygid", YPMAP_GROUP_BYGID0x00000020 }, |
| 570 | { "netid.byname", YPMAP_NETID_BYNAME0x00000040 }, |
| 571 | }; |
| 572 | static ypresp_maplist res; |
| 573 | static struct ypmaplist maps[sizeof(mapnames) / sizeof(mapnames[0])]; |
| 574 | |
| 575 | if (yp_valid_domain(*arg, (struct ypresp_val *)&res) == -1) |
| 576 | return (&res); |
| 577 | |
| 578 | res.stat = YP_TRUE; |
| 579 | res.maps = NULL((void*)0); |
| 580 | for (i = 0; i < sizeof(mapnames) / sizeof(mapnames[0]); i++) { |
| 581 | if (!(env->sc_flags & mapnames[i].cond)) |
| 582 | continue; |
| 583 | maps[i].map = mapnames[i].name; |
| 584 | maps[i].next = res.maps; |
| 585 | res.maps = &maps[i]; |
| 586 | } |
| 587 | |
| 588 | return (&res); |
| 589 | } |
| 590 | |
| 591 | void |
| 592 | yp_make_val(struct ypresp_val *res, char *line, int replacecolon) |
| 593 | { |
| 594 | static char buf[LINE_WIDTH1024]; |
| 595 | |
| 596 | memset(buf, 0, sizeof(buf)); |
| 597 | |
| 598 | if (replacecolon) |
| 599 | line[strlen(line)] = ':'; |
| 600 | (void)strlcpy(buf, line, sizeof(buf)); |
| 601 | if (replacecolon) |
| 602 | line[strcspn(line, ":")] = '\0'; |
| 603 | log_debug("sending out %s", buf); |
| 604 | |
| 605 | res->stat = YP_TRUE; |
| 606 | res->val.valdat_len = strlen(buf); |
| 607 | res->val.valdat_val = buf; |
| 608 | } |
| 609 | |
| 610 | void |
| 611 | yp_make_keyval(struct ypresp_key_val *res, char *key, char *line) |
| 612 | { |
| 613 | static char keybuf[YPMAXRECORD1024+1]; |
| 614 | static char buf[LINE_WIDTH1024]; |
| 615 | |
| 616 | memset(keybuf, 0, sizeof(keybuf)); |
| 617 | memset(buf, 0, sizeof(buf)); |
| 618 | |
| 619 | (void)strlcpy(keybuf, key, sizeof(keybuf)); |
| 620 | res->key.keydat_len = strlen(keybuf); |
| 621 | res->key.keydat_val = keybuf; |
| 622 | |
| 623 | if (*line == '\0') { |
| 624 | res->stat = YP_NOMORE; |
| 625 | return; |
| 626 | } |
| 627 | res->stat = YP_TRUE; |
| 628 | line[strlen(line)] = ':'; |
| 629 | (void)strlcpy(buf, line, sizeof(buf)); |
| 630 | line[strcspn(line, ":")] = '\0'; |
| 631 | log_debug("sending out %s => %s", keybuf, buf); |
| 632 | |
| 633 | res->val.valdat_len = strlen(buf); |
| 634 | res->val.valdat_val = buf; |
| 635 | } |