1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2003 Mike Barcroft <mike@FreeBSD.org> 5 * Copyright (c) 2008 Bjoern A. Zeeb <bz@FreeBSD.org> 6 * Copyright (c) 2009 James Gritton <jamie@FreeBSD.org> 7 * Copyright (c) 2015 Emmanuel Vadot <manu@bocal.org> 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/param.h> 33 #include <sys/jail.h> 34 #include <sys/socket.h> 35 #include <sys/sysctl.h> 36 37 #include <arpa/inet.h> 38 #include <netinet/in.h> 39 40 #include <assert.h> 41 #include <ctype.h> 42 #include <errno.h> 43 #include <jail.h> 44 #include <limits.h> 45 #include <stdio.h> 46 #include <stdlib.h> 47 #include <string.h> 48 #include <unistd.h> 49 #include <libxo/xo.h> 50 51 #define JP_USER 0x01000000 52 #define JP_OPT 0x02000000 53 54 #define JLS_XO_VERSION "2" 55 56 #define PRINT_DEFAULT 0x01 57 #define PRINT_HEADER 0x02 58 #define PRINT_NAMEVAL 0x04 59 #define PRINT_QUOTED 0x08 60 #define PRINT_SKIP 0x10 61 #define PRINT_VERBOSE 0x20 62 #define PRINT_JAIL_NAME 0x40 63 #define PRINT_EXISTS 0x80 64 65 static struct jailparam *params; 66 static int *param_parent; 67 static int nparams; 68 #ifdef INET6 69 static int ip6_ok; 70 #endif 71 #ifdef INET 72 static int ip4_ok; 73 #endif 74 75 static int add_param(const char *name, void *value, size_t valuelen, 76 struct jailparam *source, unsigned flags); 77 static int sort_param(const void *a, const void *b); 78 static char *noname(const char *name); 79 static char *nononame(const char *name); 80 static int print_jail(int pflags, int jflags); 81 static int special_print(int pflags, struct jailparam *param); 82 static void quoted_print(int pflags, char *name, char *value); 83 static void emit_ip_addr_list(int af_family, const char *list_name, 84 struct jailparam *param); 85 86 static void 87 usage(void) 88 { 89 xo_errx(1, 90 "usage: jls [-dhNnqv] [-j jail] [param ...]\n" 91 " jls -c [-d] -j jail"); 92 } 93 94 int 95 main(int argc, char **argv) 96 { 97 char *dot, *ep, *jname, *pname; 98 int c, i, jflags, jid, lastjid, pflags, spc; 99 100 argc = xo_parse_args(argc, argv); 101 if (argc < 0) 102 exit(1); 103 104 xo_set_version(JLS_XO_VERSION); 105 jname = NULL; 106 pflags = jflags = jid = 0; 107 while ((c = getopt(argc, argv, "acdj:hNnqsv")) >= 0) 108 switch (c) { 109 case 'a': 110 case 'd': 111 jflags |= JAIL_DYING; 112 break; 113 case 'c': 114 pflags |= PRINT_EXISTS; 115 break; 116 case 'j': 117 jid = strtoul(optarg, &ep, 10); 118 if (!jid || *ep) { 119 jid = 0; 120 jname = optarg; 121 } 122 break; 123 case 'h': 124 pflags = (pflags & ~(PRINT_SKIP | PRINT_VERBOSE)) | 125 PRINT_HEADER; 126 break; 127 case 'N': 128 pflags |= PRINT_JAIL_NAME; 129 break; 130 case 'n': 131 pflags = (pflags & ~PRINT_VERBOSE) | PRINT_NAMEVAL; 132 break; 133 case 'q': 134 pflags |= PRINT_QUOTED; 135 break; 136 case 's': 137 pflags = (pflags & ~(PRINT_HEADER | PRINT_VERBOSE)) | 138 PRINT_NAMEVAL | PRINT_QUOTED | PRINT_SKIP; 139 break; 140 case 'v': 141 pflags = (pflags & 142 ~(PRINT_HEADER | PRINT_NAMEVAL | PRINT_SKIP)) | 143 PRINT_VERBOSE; 144 break; 145 default: 146 usage(); 147 } 148 149 #ifdef INET6 150 ip6_ok = feature_present("inet6"); 151 #endif 152 #ifdef INET 153 ip4_ok = feature_present("inet"); 154 #endif 155 156 argc -= optind; 157 argv += optind; 158 159 /* Add the parameters to print. */ 160 if ((pflags & PRINT_EXISTS) != 0) { 161 if ((pflags & ~PRINT_EXISTS) != 0) { 162 xo_warnx("-c is incompatible with other print options"); 163 usage(); 164 } else if (argc != 0) { 165 xo_warnx("-c does not accept non-option arguments"); 166 usage(); 167 } else if (jid == 0 && jname == NULL) { 168 xo_warnx("-j jail to check must be provided for -c"); 169 usage(); 170 } 171 172 /* 173 * Force libxo to be silent, as well -- we're only wanting our 174 * exit status. 175 */ 176 xo_set_style(NULL, XO_STYLE_TEXT); 177 } else if (argc == 0) { 178 if (pflags & (PRINT_HEADER | PRINT_NAMEVAL)) 179 add_param("all", NULL, (size_t)0, NULL, JP_USER); 180 else if (pflags & PRINT_VERBOSE) { 181 add_param(JAIL_PARAM_JID, NULL, (size_t)0, NULL, 182 JP_USER); 183 add_param(JAIL_PARAM_HOST_HOSTNAME, NULL, (size_t)0, 184 NULL, JP_USER); 185 add_param(JAIL_PARAM_PATH, NULL, (size_t)0, NULL, 186 JP_USER); 187 add_param(JAIL_PARAM_NAME, NULL, (size_t)0, NULL, 188 JP_USER); 189 add_param(JAIL_PARAM_DYING, NULL, (size_t)0, NULL, 190 JP_USER); 191 add_param(JAIL_PARAM_CPUSET_ID, NULL, (size_t)0, NULL, 192 JP_USER); 193 #ifdef INET 194 if (ip4_ok) 195 add_param(JAIL_PARAM_IP4_ADDR, NULL, 196 (size_t)0, NULL, JP_USER); 197 #endif 198 #ifdef INET6 199 if (ip6_ok) 200 add_param(JAIL_PARAM_IP6_ADDR, NULL, 201 (size_t)0, NULL, JP_USER | JP_OPT); 202 #endif 203 } else { 204 pflags |= PRINT_DEFAULT; 205 if (pflags & PRINT_JAIL_NAME) 206 add_param(JAIL_PARAM_NAME, NULL, (size_t)0, 207 NULL, JP_USER); 208 else 209 add_param(JAIL_PARAM_JID, NULL, (size_t)0, 210 NULL, JP_USER); 211 #ifdef INET 212 if (ip4_ok) 213 add_param(JAIL_PARAM_IP4_ADDR, NULL, 214 (size_t)0, NULL, JP_USER); 215 #endif 216 add_param(JAIL_PARAM_HOST_HOSTNAME, NULL, (size_t)0, 217 NULL, JP_USER); 218 add_param(JAIL_PARAM_PATH, NULL, (size_t)0, NULL, 219 JP_USER); 220 } 221 } else { 222 pflags &= ~PRINT_VERBOSE; 223 for (i = 0; i < argc; i++) 224 add_param(argv[i], NULL, (size_t)0, NULL, JP_USER); 225 } 226 227 if (pflags & PRINT_SKIP) { 228 /* Check for parameters with jailsys parents. */ 229 for (i = 0; i < nparams; i++) { 230 if ((params[i].jp_flags & JP_USER) && 231 (dot = strchr(params[i].jp_name, '.'))) { 232 pname = alloca((dot - params[i].jp_name) + 1); 233 strlcpy(pname, params[i].jp_name, 234 (dot - params[i].jp_name) + 1); 235 param_parent[i] = add_param(pname, 236 NULL, (size_t)0, NULL, JP_OPT); 237 } 238 } 239 } 240 241 /* Add the index key parameters. */ 242 if (jid != 0) 243 add_param(JAIL_PARAM_JID, &jid, sizeof(jid), NULL, 0); 244 else if (jname != NULL) 245 add_param(JAIL_PARAM_NAME, jname, strlen(jname), NULL, 0); 246 else 247 add_param(JAIL_PARAM_LASTJID, &lastjid, sizeof(lastjid), 248 NULL, 0); 249 250 /* Print a header line if requested. */ 251 if (pflags & PRINT_VERBOSE) { 252 xo_emit("{T:/%3s}{T:JID}{P: }{T:Hostname}{Pd:/%22s}{T:Path}\n", 253 "", ""); 254 xo_emit("{P:/%8s}{T:Name}{Pd:/%26s}{T:State}\n", "", ""); 255 xo_emit("{P:/%8s}{T:CPUSetID}\n", ""); 256 xo_emit("{P:/%8s}{T:IP Address(es)}\n", ""); 257 } 258 else if (pflags & PRINT_DEFAULT) 259 if (pflags & PRINT_JAIL_NAME) 260 xo_emit("{P: }{T:JID/%-15s}{P: }{T:IP Address/%-15s}" 261 "{P: }{T:Hostname/%-29s}{P: }{T:Path}\n"); 262 else 263 xo_emit("{T:JID/%6s}{P: }{T:IP Address}{P:/%6s}" 264 "{T:Hostname}{P:/%22s}{T:Path}\n", "", ""); 265 else if (pflags & PRINT_HEADER) { 266 for (i = spc = 0; i < nparams; i++) 267 if (params[i].jp_flags & JP_USER) { 268 if (spc) 269 xo_emit("{P: }"); 270 else 271 spc = 1; 272 xo_emit(params[i].jp_name); 273 } 274 xo_emit("{P:\n}"); 275 } 276 277 xo_open_container("jail-information"); 278 xo_open_list("jail"); 279 /* Fetch the jail(s) and print the parameters. */ 280 if (jid != 0 || jname != NULL) { 281 if (print_jail(pflags, jflags) < 0) { 282 /* 283 * We omit errors from existential issues if we're just 284 * doing a -c check that the jail exists. 285 */ 286 if (pflags & PRINT_EXISTS) 287 exit(1); 288 xo_errx(1, "%s", jail_errmsg); 289 } 290 } else { 291 assert((pflags & PRINT_EXISTS) == 0); 292 for (lastjid = 0; 293 (lastjid = print_jail(pflags, jflags)) >= 0; ) 294 ; 295 if (errno != 0 && errno != ENOENT) 296 xo_errx(1, "%s", jail_errmsg); 297 } 298 xo_close_list("jail"); 299 xo_close_container("jail-information"); 300 if (xo_finish() < 0) 301 xo_err(1, "stdout"); 302 exit(0); 303 } 304 305 static int 306 add_param(const char *name, void *value, size_t valuelen, 307 struct jailparam *source, unsigned flags) 308 { 309 struct jailparam *param, *tparams; 310 int i, tnparams; 311 312 static int paramlistsize; 313 314 /* The pseudo-parameter "all" scans the list of available parameters. */ 315 if (!strcmp(name, "all")) { 316 tnparams = jailparam_all(&tparams); 317 if (tnparams < 0) 318 xo_errx(1, "%s", jail_errmsg); 319 qsort(tparams, (size_t)tnparams, sizeof(struct jailparam), 320 sort_param); 321 for (i = 0; i < tnparams; i++) 322 add_param(tparams[i].jp_name, NULL, (size_t)0, 323 tparams + i, flags); 324 free(tparams); 325 return -1; 326 } 327 328 /* Check for repeat parameters. */ 329 for (i = 0; i < nparams; i++) 330 if (!strcmp(name, params[i].jp_name)) { 331 if (value != NULL && jailparam_import_raw(params + i, 332 value, valuelen) < 0) 333 xo_errx(1, "%s", jail_errmsg); 334 params[i].jp_flags |= flags; 335 if (source != NULL) 336 jailparam_free(source, 1); 337 return i; 338 } 339 340 /* Make sure there is room for the new param record. */ 341 if (!nparams) { 342 paramlistsize = 32; 343 params = malloc(paramlistsize * sizeof(*params)); 344 param_parent = malloc(paramlistsize * sizeof(*param_parent)); 345 if (params == NULL || param_parent == NULL) 346 xo_err(1, "malloc"); 347 } else if (nparams >= paramlistsize) { 348 paramlistsize *= 2; 349 params = realloc(params, paramlistsize * sizeof(*params)); 350 param_parent = realloc(param_parent, 351 paramlistsize * sizeof(*param_parent)); 352 if (params == NULL || param_parent == NULL) 353 xo_err(1, "realloc"); 354 } 355 356 /* Look up the parameter. */ 357 param_parent[nparams] = -1; 358 param = params + nparams++; 359 if (source != NULL) { 360 *param = *source; 361 param->jp_flags |= flags; 362 return param - params; 363 } 364 if (jailparam_init(param, name) < 0 || 365 (value != NULL ? jailparam_import_raw(param, value, valuelen) 366 : jailparam_import(param, value)) < 0) { 367 if (flags & JP_OPT) { 368 nparams--; 369 return (-1); 370 } 371 xo_errx(1, "%s", jail_errmsg); 372 } 373 param->jp_flags |= flags; 374 return param - params; 375 } 376 377 static int 378 sort_param(const void *a, const void *b) 379 { 380 const struct jailparam *parama, *paramb; 381 char *ap, *bp; 382 383 /* Put top-level parameters first. */ 384 parama = a; 385 paramb = b; 386 ap = strchr(parama->jp_name, '.'); 387 bp = strchr(paramb->jp_name, '.'); 388 if (ap && !bp) 389 return (1); 390 if (bp && !ap) 391 return (-1); 392 return (strcmp(parama->jp_name, paramb->jp_name)); 393 } 394 395 static char * 396 noname(const char *name) 397 { 398 char *nname, *p; 399 400 nname = malloc(strlen(name) + 3); 401 if (nname == NULL) 402 xo_err(1, "malloc"); 403 p = strrchr(name, '.'); 404 if (p != NULL) 405 sprintf(nname, "%.*s.no%s", (int)(p - name), name, p + 1); 406 else 407 sprintf(nname, "no%s", name); 408 return nname; 409 } 410 411 static char * 412 nononame(const char *name) 413 { 414 char *nname, *p; 415 416 p = strrchr(name, '.'); 417 if (strncmp(p ? p + 1 : name, "no", 2)) 418 return NULL; 419 nname = malloc(strlen(name) - 1); 420 if (nname == NULL) 421 xo_err(1, "malloc"); 422 if (p != NULL) 423 sprintf(nname, "%.*s.%s", (int)(p - name), name, p + 3); 424 else 425 strcpy(nname, name + 2); 426 return nname; 427 } 428 429 static int 430 print_jail(int pflags, int jflags) 431 { 432 char *nname, *xo_nname; 433 char **param_values; 434 int i, jid, spc; 435 #if (defined INET || defined INET6) 436 int n; 437 #endif 438 439 jid = jailparam_get(params, nparams, jflags); 440 if (jid < 0) 441 return jid; 442 else if (pflags & PRINT_EXISTS) 443 return 0; 444 445 xo_open_instance("jail"); 446 447 if (pflags & PRINT_VERBOSE) { 448 xo_emit("{:jid/%6d}{P: }{:hostname/%-29.29s/%s}{P: }" 449 "{:path/%.74s/%s}\n", 450 *(int *)params[0].jp_value, 451 (char *)params[1].jp_value, 452 (char *)params[2].jp_value); 453 xo_emit("{P: }{:name/%-29.29s/%s}{P: }{:state/%.74s}\n", 454 (char *)params[3].jp_value, 455 *(int *)params[4].jp_value ? "DYING" : "ACTIVE"); 456 xo_emit("{P: }{:cpusetid/%d}\n", *(int *)params[5].jp_value); 457 #if (defined INET || defined INET6) 458 n = 6; 459 #endif 460 #ifdef INET 461 if (ip4_ok && !strcmp(params[n].jp_name, JAIL_PARAM_IP4_ADDR)) { 462 emit_ip_addr_list(AF_INET, "ipv4_addrs", params + n); 463 n++; 464 } 465 #endif 466 #ifdef INET6 467 if (ip6_ok && !strcmp(params[n].jp_name, JAIL_PARAM_IP6_ADDR)) { 468 emit_ip_addr_list(AF_INET6, "ipv6_addrs", params + n); 469 n++; 470 } 471 #endif 472 } else if (pflags & PRINT_DEFAULT) { 473 if (pflags & PRINT_JAIL_NAME) 474 xo_emit("{P: }{:name/%-15s/%s}{P: }", 475 (char *)params[0].jp_value); 476 else 477 xo_emit("{:jid/%6d}{P: }", *(int *)params[0].jp_value); 478 xo_emit("{:ipv4/%-15.15s/%s}{P: }{:hostname/%-29.29s/%s}{P: }{:path/%.74s/%s}\n", 479 #ifdef INET 480 (!ip4_ok || params[1].jp_valuelen == 0) ? "" 481 : inet_ntoa(*(struct in_addr *)params[1].jp_value), 482 (char *)params[2-!ip4_ok].jp_value, 483 (char *)params[3-!ip4_ok].jp_value); 484 #else 485 "-", 486 (char *)params[1].jp_value, 487 (char *)params[2].jp_value); 488 #endif 489 } else { 490 param_values = alloca(nparams * sizeof(*param_values)); 491 for (i = 0; i < nparams; i++) { 492 if (!(params[i].jp_flags & JP_USER)) 493 continue; 494 param_values[i] = jailparam_export(params + i); 495 if (param_values[i] == NULL) 496 xo_errx(1, "%s", jail_errmsg); 497 } 498 for (i = spc = 0; i < nparams; i++) { 499 if (!(params[i].jp_flags & JP_USER)) 500 continue; 501 if ((pflags & PRINT_SKIP) && 502 !(params[i].jp_flags & JP_KEYVALUE) && 503 ((!(params[i].jp_ctltype & 504 (CTLFLAG_WR | CTLFLAG_TUN))) || 505 (param_parent[i] >= 0 && 506 *(int *)params[param_parent[i]].jp_value != 507 JAIL_SYS_NEW))) 508 continue; 509 if (spc) 510 xo_emit("{P: }"); 511 else 512 spc = 1; 513 if ((params[i].jp_flags & JP_KEYVALUE) && 514 params[i].jp_valuelen == 0) { 515 /* Communicate back a missing key. */ 516 if (pflags & PRINT_NAMEVAL) 517 xo_emit("{d:%s}", params[i].jp_name); 518 continue; 519 } 520 if (pflags & PRINT_NAMEVAL) { 521 /* 522 * Generally "name=value", but for booleans 523 * either "name" or "noname". 524 */ 525 if (params[i].jp_flags & 526 (JP_BOOL | JP_NOBOOL)) { 527 if (*(int *)params[i].jp_value) { 528 asprintf(&xo_nname, "{en:%s/true}", params[i].jp_name); 529 xo_emit(xo_nname); 530 xo_emit("{d:/%s}", params[i].jp_name); 531 } 532 else { 533 nname = (params[i].jp_flags & 534 JP_NOBOOL) ? 535 nononame(params[i].jp_name) 536 : noname(params[i].jp_name); 537 if (params[i].jp_flags & JP_NOBOOL) { 538 asprintf(&xo_nname, "{en:%s/true}", params[i].jp_name); 539 xo_emit(xo_nname); 540 } else { 541 asprintf(&xo_nname, "{en:%s/false}", params[i].jp_name); 542 xo_emit(xo_nname); 543 } 544 xo_emit("{d:/%s}", nname); 545 free(nname); 546 } 547 free(xo_nname); 548 continue; 549 } 550 xo_emit("{d:%s}=", params[i].jp_name); 551 } 552 if (!special_print(pflags, params + i)) 553 quoted_print(pflags, params[i].jp_name, param_values[i]); 554 } 555 xo_emit("{P:\n}"); 556 for (i = 0; i < nparams; i++) 557 if (params[i].jp_flags & JP_USER) 558 free(param_values[i]); 559 } 560 561 xo_close_instance("jail"); 562 return (jid); 563 } 564 565 static void 566 quoted_print(int pflags, char *name, char *value) 567 { 568 int qc; 569 char *p = value; 570 571 /* An empty string needs quoting. */ 572 if (!*p) { 573 xo_emit("{ea:/%s}{da:/\"\"}", name, value, name); 574 return; 575 } 576 577 /* 578 * The value will be surrounded by quotes if it contains 579 * whitespace or quotes. 580 */ 581 if (strchr(p, '\'')) 582 qc = '"'; 583 else if (strchr(p, '"')) 584 qc = '\''; 585 else { 586 qc = 0; 587 for (; *p; ++p) 588 if (isspace(*p)) { 589 qc = '"'; 590 break; 591 } 592 } 593 594 if (qc && pflags & PRINT_QUOTED) 595 xo_emit("{P:/%c}", qc); 596 597 xo_emit("{a:/%s}", name, value); 598 599 if (qc && pflags & PRINT_QUOTED) 600 xo_emit("{P:/%c}", qc); 601 } 602 603 static int 604 special_print(int pflags, struct jailparam *param) 605 { 606 int ip_as_list; 607 608 switch (xo_get_style(NULL)) { 609 case XO_STYLE_JSON: 610 case XO_STYLE_XML: 611 ip_as_list = 1; 612 break; 613 default: 614 ip_as_list = 0; 615 } 616 617 if (!ip_as_list && param->jp_valuelen == 0) { 618 if (pflags & PRINT_QUOTED) 619 xo_emit("{P:\"\"}"); 620 else if (!(pflags & PRINT_NAMEVAL)) 621 xo_emit("{P:-}"); 622 } else if (ip_as_list && !strcmp(param->jp_name, JAIL_PARAM_IP4_ADDR)) { 623 emit_ip_addr_list(AF_INET, param->jp_name, param); 624 } else if (ip_as_list && !strcmp(param->jp_name, JAIL_PARAM_IP6_ADDR)) { 625 emit_ip_addr_list(AF_INET6, param->jp_name, param); 626 } else { 627 return 0; 628 } 629 630 return 1; 631 } 632 633 static void 634 emit_ip_addr_list(int af_family, const char *list_name, struct jailparam *param) 635 { 636 char ipbuf[INET6_ADDRSTRLEN]; 637 size_t addr_len; 638 const char *emit_str; 639 int ai, count; 640 641 switch (af_family) { 642 case AF_INET: 643 addr_len = sizeof(struct in_addr); 644 emit_str = "{P: }{ql:ipv4_addr}{P:\n}"; 645 break; 646 case AF_INET6: 647 addr_len = sizeof(struct in6_addr); 648 emit_str = "{P: }{ql:ipv6_addr}{P:\n}"; 649 break; 650 default: 651 xo_err(1, "unsupported af_family"); 652 return; 653 } 654 655 count = param->jp_valuelen / addr_len; 656 657 xo_open_list(list_name); 658 for (ai = 0; ai < count; ai++) { 659 if (inet_ntop(af_family, 660 ((uint8_t *)param->jp_value) + addr_len * ai, 661 ipbuf, sizeof(ipbuf)) == NULL) { 662 xo_err(1, "inet_ntop"); 663 } else { 664 xo_emit(emit_str, ipbuf); 665 } 666 } 667 xo_close_list(list_name); 668 } 669