contrib/unbound/smallapp/unbound-control.c

   1 /*
   2  * smallapp/unbound-control.c - remote control utility for unbound.
   3  *
   4  * Copyright (c) 2008, NLnet Labs. All rights reserved.
   5  *
   6  * This software is open source.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * Redistributions of source code must retain the above copyright notice,
  13  * this list of conditions and the following disclaimer.
  14  *
  15  * Redistributions in binary form must reproduce the above copyright notice,
  16  * this list of conditions and the following disclaimer in the documentation
  17  * and/or other materials provided with the distribution.
  18  *
  19  * Neither the name of the NLNET LABS nor the names of its contributors may
  20  * be used to endorse or promote products derived from this software without
  21  * specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  24  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  25  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  26  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  27  * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  28  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
  29  * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  30  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  31  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  32  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  33  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34  */
  35
  36 /**
  37  * \file
  38  *
  39  * The remote control utility contacts the unbound server over ssl and
  40  * sends the command, receives the answer, and displays the result
  41  * from the commandline.
  42  */
  43
  44 #include "config.h"
  45 #ifdef HAVE_GETOPT_H
  46 #include <getopt.h>
  47 #endif
  48 #ifdef HAVE_OPENSSL_SSL_H
  49 #include <openssl/ssl.h>
  50 #endif
  51 #ifdef HAVE_OPENSSL_ERR_H
  52 #include <openssl/err.h>
  53 #endif
  54 #ifdef HAVE_OPENSSL_RAND_H
  55 #include <openssl/rand.h>
  56 #endif
  57 #include "util/log.h"
  58 #include "util/config_file.h"
  59 #include "util/locks.h"
  60 #include "util/net_help.h"
  61 #include "util/shm_side/shm_main.h"
  62 #include "util/timeval_func.h"
  63 #include "daemon/stats.h"
  64 #include "sldns/wire2str.h"
  65 #include "sldns/pkthdr.h"
  66 #include "services/rpz.h"
  67 #include "services/listen_dnsport.h"
  68
  69 #ifdef HAVE_SYS_IPC_H
  70 #include "sys/ipc.h"
  71 #endif
  72 #ifdef HAVE_SYS_SHM_H
  73 #include "sys/shm.h"
  74 #endif
  75 #ifdef HAVE_SYS_UN_H
  76 #include <sys/un.h>
  77 #endif
  78
  79 #ifdef HAVE_TARGETCONDITIONALS_H
  80 #include <TargetConditionals.h>
  81 #endif
  82
  83 static void usage(void) ATTR_NORETURN;
  84 static void ssl_err(const char* s) ATTR_NORETURN;
  85 static void ssl_path_err(const char* s, const char *path) ATTR_NORETURN;
  86
  87 /** timeout to wait for connection over stream, in msec */
  88 #define UNBOUND_CONTROL_CONNECT_TIMEOUT 5000
  89
  90 /** Give unbound-control usage, and exit (1). */
  91 static void
  92 usage(void)
  93 {
  94         printf("Usage:  local-unbound-control [options] command\n");
  95         printf("        Remote control utility for unbound server.\n");
  96         printf("Options:\n");
  97         printf("  -c file       config file, default is %s\n", CONFIGFILE);
  98         printf("  -s ip[@port]  server address, if omitted config is used.\n");
  99         printf("  -q            quiet (don't print anything if it works ok).\n");
 100         printf("  -h            show this usage help.\n");
 101         printf("Commands:\n");
 102         printf("  start                         start server; runs unbound(8)\n");
 103         printf("  stop                          stops the server\n");
 104         printf("  reload                        reloads the server\n");
 105         printf("                                (this flushes data, stats, requestlist)\n");
 106         printf("  reload_keep_cache             reloads the server but tries to\n");
 107         printf("                                keep the RRset and message cache\n");
 108         printf("                                if (re)configuration allows for it.\n");
 109         printf("                                That means the caches sizes and\n");
 110         printf("                                the number of threads must not\n");
 111         printf("                                change between reloads.\n");
 112         printf("  stats                         print statistics\n");
 113         printf("  stats_noreset                 peek at statistics\n");
 114 #ifdef HAVE_SHMGET
 115         printf("  stats_shm                     print statistics using shm\n");
 116 #endif
 117         printf("  status                        display status of server\n");
 118         printf("  verbosity <number>            change logging detail\n");
 119         printf("  log_reopen                    close and open the logfile\n");
 120         printf("  local_zone <name> <type>      add new local zone\n");
 121         printf("  local_zone_remove <name>      remove local zone and its contents\n");
 122         printf("  local_data <RR data...>       add local data, for example\n");
 123         printf("                                local_data www.example.com A 192.0.2.1\n");
 124         printf("  local_data_remove <name>      remove local RR data from name\n");
 125         printf("  local_zones, local_zones_remove, local_datas, local_datas_remove\n");
 126         printf("                                same, but read list from stdin\n");
 127         printf("                                (one entry per line).\n");
 128         printf("  dump_cache                    print cache to stdout\n");
 129         printf("  load_cache                    load cache from stdin\n");
 130         printf("  lookup <name>                 print nameservers for name\n");
 131         printf("  flush <name>                  flushes common types for name from cache\n");
 132         printf("                                types:  A, AAAA, MX, PTR, NS,\n");
 133         printf("                                        SOA, CNAME, DNAME, SRV, NAPTR\n");
 134         printf("  flush_type <name> <type>      flush name, type from cache\n");
 135         printf("  flush_zone <name>             flush everything at or under name\n");
 136         printf("                                from rr and dnssec caches\n");
 137         printf("  flush_bogus                   flush all bogus data\n");
 138         printf("  flush_negative                flush all negative data\n");
 139         printf("  flush_stats                   flush statistics, make zero\n");
 140         printf("  flush_requestlist             drop queries that are worked on\n");
 141         printf("  dump_requestlist              show what is worked on by first thread\n");
 142         printf("  flush_infra [all | ip]        remove ping, edns for one IP or all\n");
 143         printf("  dump_infra                    show ping and edns entries\n");
 144         printf("  set_option opt: val           set option to value, no reload\n");
 145         printf("  get_option opt                get option value\n");
 146         printf("  list_stubs                    list stub-zones and root hints in use\n");
 147         printf("  list_forwards                 list forward-zones in use\n");
 148         printf("  list_insecure                 list domain-insecure zones\n");
 149         printf("  list_local_zones              list local-zones in use\n");
 150         printf("  list_local_data               list local-data RRs in use\n");
 151         printf("  insecure_add zone             add domain-insecure zone\n");
 152         printf("  insecure_remove zone          remove domain-insecure zone\n");
 153         printf("  forward_add [+i] zone addr..  add forward-zone with servers\n");
 154         printf("  forward_remove [+i] zone      remove forward zone\n");
 155         printf("  stub_add [+ip] zone addr..    add stub-zone with servers\n");
 156         printf("  stub_remove [+i] zone         remove stub zone\n");
 157         printf("                +i              also do dnssec insecure point\n");
 158         printf("                +p              set stub to use priming\n");
 159         printf("  forward [off | addr ...]      without arg show forward setup\n");
 160         printf("                                or off to turn off root forwarding\n");
 161         printf("                                or give list of ip addresses\n");
 162         printf("  ratelimit_list [+a]           list ratelimited domains\n");
 163         printf("  ip_ratelimit_list [+a]        list ratelimited ip addresses\n");
 164         printf("                +a              list all, also not ratelimited\n");
 165         printf("  list_auth_zones               list auth zones (includes RPZ zones)\n");
 166         printf("  auth_zone_reload zone         reload auth zone (or RPZ zone) from zonefile\n");
 167         printf("  auth_zone_transfer zone       transfer auth zone (or RPZ zone) from master\n");
 168         printf("  view_list_local_zones view    list local-zones in view\n");
 169         printf("  view_list_local_data  view    list local-data RRs in view\n");
 170         printf("  view_local_zone view name type        add local-zone in view\n");
 171         printf("  view_local_zone_remove view name      remove local-zone in view\n");
 172         printf("  view_local_data view RR...            add local-data in view\n");
 173         printf("  view_local_datas view                 add list of local-data to view\n");
 174         printf("                                        one entry per line read from stdin\n");
 175         printf("  view_local_data_remove view name      remove local-data in view\n");
 176         printf("  view_local_datas_remove view          remove list of local-data from view\n");
 177         printf("                                        one entry per line read from stdin\n");
 178         printf("  rpz_enable zone               Enable the RPZ zone if it had previously\n");
 179         printf("                                been disabled\n");
 180         printf("  rpz_disable zone              Disable the RPZ zone\n");
 181         printf("Version %s\n", PACKAGE_VERSION);
 182         printf("BSD licensed, see LICENSE in source package for details.\n");
 183         printf("Report bugs to %s\n", PACKAGE_BUGREPORT);
 184         exit(1);
 185 }
 186
 187 #ifdef HAVE_SHMGET
 188 /** what to put on statistics lines between var and value, ": " or "=" */
 189 #define SQ "="
 190 /** print unsigned long stats value */
 191 #define PR_UL_NM(str, var) printf("%s."str SQ"%lu\n", nm, (unsigned long)(var));
 192 #define PR_UL(str, var) printf(str SQ"%lu\n", (unsigned long)(var));
 193 #define PR_UL_SUB(str, nm, var) printf(str".%s"SQ"%lu\n", nm, (unsigned long)(var));
 194 #define PR_TIMEVAL(str, var) printf(str SQ ARG_LL "d.%6.6d\n", \
 195         (long long)var.tv_sec, (int)var.tv_usec);
 196 #define PR_STATSTIME(str, var) printf(str SQ ARG_LL "d.%6.6d\n", \
 197         (long long)var ## _sec, (int)var ## _usec);
 198 #define PR_LL(str, var) printf(str SQ ARG_LL"d\n", (long long)(var));
 199
 200 /** print stat block */
 201 static void pr_stats(const char* nm, struct ub_stats_info* s)
 202 {
 203         struct timeval sumwait, avg;
 204         PR_UL_NM("num.queries", s->svr.num_queries);
 205         PR_UL_NM("num.queries_ip_ratelimited",
 206                 s->svr.num_queries_ip_ratelimited);
 207         PR_UL_NM("num.queries_cookie_valid",
 208                 s->svr.num_queries_cookie_valid);
 209         PR_UL_NM("num.queries_cookie_client",
 210                 s->svr.num_queries_cookie_client);
 211         PR_UL_NM("num.queries_cookie_invalid",
 212                 s->svr.num_queries_cookie_invalid);
 213         PR_UL_NM("num.cachehits",
 214                 s->svr.num_queries - s->svr.num_queries_missed_cache);
 215         PR_UL_NM("num.cachemiss", s->svr.num_queries_missed_cache);
 216         PR_UL_NM("num.prefetch", s->svr.num_queries_prefetch);
 217         PR_UL_NM("num.queries_timed_out", s->svr.num_queries_timed_out);
 218         PR_UL_NM("query.queue_time_us.max", s->svr.max_query_time_us);
 219         PR_UL_NM("num.expired", s->svr.ans_expired);
 220         PR_UL_NM("num.recursivereplies", s->mesh_replies_sent);
 221 #ifdef USE_DNSCRYPT
 222     PR_UL_NM("num.dnscrypt.crypted", s->svr.num_query_dnscrypt_crypted);
 223     PR_UL_NM("num.dnscrypt.cert", s->svr.num_query_dnscrypt_cert);
 224     PR_UL_NM("num.dnscrypt.cleartext", s->svr.num_query_dnscrypt_cleartext);
 225     PR_UL_NM("num.dnscrypt.malformed",
 226              s->svr.num_query_dnscrypt_crypted_malformed);
 227 #endif /* USE_DNSCRYPT */
 228         printf("%s.requestlist.avg"SQ"%g\n", nm,
 229                 (s->svr.num_queries_missed_cache+s->svr.num_queries_prefetch)?
 230                         (double)s->svr.sum_query_list_size/
 231                         (double)(s->svr.num_queries_missed_cache+
 232                         s->svr.num_queries_prefetch) : 0.0);
 233         PR_UL_NM("requestlist.max", s->svr.max_query_list_size);
 234         PR_UL_NM("requestlist.overwritten", s->mesh_jostled);
 235         PR_UL_NM("requestlist.exceeded", s->mesh_dropped);
 236         PR_UL_NM("requestlist.current.all", s->mesh_num_states);
 237         PR_UL_NM("requestlist.current.user", s->mesh_num_reply_states);
 238 #ifndef S_SPLINT_S
 239         sumwait.tv_sec = s->mesh_replies_sum_wait_sec;
 240         sumwait.tv_usec = s->mesh_replies_sum_wait_usec;
 241 #endif
 242         timeval_divide(&avg, &sumwait, s->mesh_replies_sent);
 243         printf("%s.", nm);
 244         PR_TIMEVAL("recursion.time.avg", avg);
 245         printf("%s.recursion.time.median"SQ"%g\n", nm, s->mesh_time_median);
 246         PR_UL_NM("tcpusage", s->svr.tcp_accept_usage);
 247 }
 248
 249 /** print uptime */
 250 static void print_uptime(struct ub_shm_stat_info* shm_stat)
 251 {
 252         PR_STATSTIME("time.now", shm_stat->time.now);
 253         PR_STATSTIME("time.up", shm_stat->time.up);
 254         PR_STATSTIME("time.elapsed", shm_stat->time.elapsed);
 255 }
 256
 257 /** print memory usage */
 258 static void print_mem(struct ub_shm_stat_info* shm_stat,
 259         struct ub_stats_info* s)
 260 {
 261         PR_LL("mem.cache.rrset", shm_stat->mem.rrset);
 262         PR_LL("mem.cache.message", shm_stat->mem.msg);
 263         PR_LL("mem.mod.iterator", shm_stat->mem.iter);
 264         PR_LL("mem.mod.validator", shm_stat->mem.val);
 265         PR_LL("mem.mod.respip", shm_stat->mem.respip);
 266 #ifdef CLIENT_SUBNET
 267         PR_LL("mem.mod.subnet", shm_stat->mem.subnet);
 268 #endif
 269 #ifdef USE_IPSECMOD
 270         PR_LL("mem.mod.ipsecmod", shm_stat->mem.ipsecmod);
 271 #endif
 272 #ifdef WITH_DYNLIBMODULE
 273         PR_LL("mem.mod.dynlib", shm_stat->mem.dynlib);
 274 #endif
 275 #ifdef USE_DNSCRYPT
 276         PR_LL("mem.cache.dnscrypt_shared_secret",
 277                 shm_stat->mem.dnscrypt_shared_secret);
 278         PR_LL("mem.cache.dnscrypt_nonce",
 279                 shm_stat->mem.dnscrypt_nonce);
 280 #endif
 281         PR_LL("mem.streamwait", s->svr.mem_stream_wait);
 282         PR_LL("mem.http.query_buffer", s->svr.mem_http2_query_buffer);
 283         PR_LL("mem.http.response_buffer", s->svr.mem_http2_response_buffer);
 284 }
 285
 286 /** print histogram */
 287 static void print_hist(struct ub_stats_info* s)
 288 {
 289         struct timehist* hist;
 290         size_t i;
 291         hist = timehist_setup();
 292         if(!hist)
 293                 fatal_exit("out of memory");
 294         timehist_import(hist, s->svr.hist, NUM_BUCKETS_HIST);
 295         for(i=0; i<hist->num; i++) {
 296                 printf("histogram.%6.6d.%6.6d.to.%6.6d.%6.6d=%lu\n",
 297                         (int)hist->buckets[i].lower.tv_sec,
 298                         (int)hist->buckets[i].lower.tv_usec,
 299                         (int)hist->buckets[i].upper.tv_sec,
 300                         (int)hist->buckets[i].upper.tv_usec,
 301                         (unsigned long)hist->buckets[i].count);
 302         }
 303         timehist_delete(hist);
 304 }
 305
 306 /** print extended */
 307 static void print_extended(struct ub_stats_info* s, int inhibit_zero)
 308 {
 309         int i;
 310         char nm[16];
 311
 312         /* TYPE */
 313         for(i=0; i<UB_STATS_QTYPE_NUM; i++) {
 314                 if(inhibit_zero && s->svr.qtype[i] == 0)
 315                         continue;
 316                 sldns_wire2str_type_buf((uint16_t)i, nm, sizeof(nm));
 317                 PR_UL_SUB("num.query.type", nm, s->svr.qtype[i]);
 318         }
 319         if(!inhibit_zero || s->svr.qtype_big) {
 320                 PR_UL("num.query.type.other", s->svr.qtype_big);
 321         }
 322
 323         /* CLASS */
 324         for(i=0; i<UB_STATS_QCLASS_NUM; i++) {
 325                 if(inhibit_zero && s->svr.qclass[i] == 0)
 326                         continue;
 327                 sldns_wire2str_class_buf((uint16_t)i, nm, sizeof(nm));
 328                 PR_UL_SUB("num.query.class", nm, s->svr.qclass[i]);
 329         }
 330         if(!inhibit_zero || s->svr.qclass_big) {
 331                 PR_UL("num.query.class.other", s->svr.qclass_big);
 332         }
 333
 334         /* OPCODE */
 335         for(i=0; i<UB_STATS_OPCODE_NUM; i++) {
 336                 if(inhibit_zero && s->svr.qopcode[i] == 0)
 337                         continue;
 338                 sldns_wire2str_opcode_buf(i, nm, sizeof(nm));
 339                 PR_UL_SUB("num.query.opcode", nm, s->svr.qopcode[i]);
 340         }
 341
 342         /* transport */
 343         PR_UL("num.query.tcp", s->svr.qtcp);
 344         PR_UL("num.query.tcpout", s->svr.qtcp_outgoing);
 345         PR_UL("num.query.udpout", s->svr.qudp_outgoing);
 346         PR_UL("num.query.tls", s->svr.qtls);
 347         PR_UL("num.query.tls_resume", s->svr.qtls_resume);
 348         PR_UL("num.query.ipv6", s->svr.qipv6);
 349         PR_UL("num.query.https", s->svr.qhttps);
 350
 351         /* flags */
 352         PR_UL("num.query.flags.QR", s->svr.qbit_QR);
 353         PR_UL("num.query.flags.AA", s->svr.qbit_AA);
 354         PR_UL("num.query.flags.TC", s->svr.qbit_TC);
 355         PR_UL("num.query.flags.RD", s->svr.qbit_RD);
 356         PR_UL("num.query.flags.RA", s->svr.qbit_RA);
 357         PR_UL("num.query.flags.Z", s->svr.qbit_Z);
 358         PR_UL("num.query.flags.AD", s->svr.qbit_AD);
 359         PR_UL("num.query.flags.CD", s->svr.qbit_CD);
 360         PR_UL("num.query.edns.present", s->svr.qEDNS);
 361         PR_UL("num.query.edns.DO", s->svr.qEDNS_DO);
 362
 363         /* RCODE */
 364         for(i=0; i<UB_STATS_RCODE_NUM; i++) {
 365                 /* Always include RCODEs 0-5 */
 366                 if(inhibit_zero && i > LDNS_RCODE_REFUSED && s->svr.ans_rcode[i] == 0)
 367                         continue;
 368                 sldns_wire2str_rcode_buf(i, nm, sizeof(nm));
 369                 PR_UL_SUB("num.answer.rcode", nm, s->svr.ans_rcode[i]);
 370         }
 371         if(!inhibit_zero || s->svr.ans_rcode_nodata) {
 372                 PR_UL("num.answer.rcode.nodata", s->svr.ans_rcode_nodata);
 373         }
 374         /* iteration */
 375         PR_UL("num.query.ratelimited", s->svr.queries_ratelimited);
 376         /* validation */
 377         PR_UL("num.answer.secure", s->svr.ans_secure);
 378         PR_UL("num.answer.bogus", s->svr.ans_bogus);
 379         PR_UL("num.rrset.bogus", s->svr.rrset_bogus);
 380         PR_UL("num.query.aggressive.NOERROR", s->svr.num_neg_cache_noerror);
 381         PR_UL("num.query.aggressive.NXDOMAIN", s->svr.num_neg_cache_nxdomain);
 382         /* threat detection */
 383         PR_UL("unwanted.queries", s->svr.unwanted_queries);
 384         PR_UL("unwanted.replies", s->svr.unwanted_replies);
 385         /* cache counts */
 386         PR_UL("msg.cache.count", s->svr.msg_cache_count);
 387         PR_UL("rrset.cache.count", s->svr.rrset_cache_count);
 388         PR_UL("infra.cache.count", s->svr.infra_cache_count);
 389         PR_UL("key.cache.count", s->svr.key_cache_count);
 390         /* max collisions */
 391         PR_UL("msg.cache.max_collisions", s->svr.msg_cache_max_collisions);
 392         PR_UL("rrset.cache.max_collisions", s->svr.rrset_cache_max_collisions);
 393         /* applied RPZ actions */
 394         for(i=0; i<UB_STATS_RPZ_ACTION_NUM; i++) {
 395                 if(i == RPZ_NO_OVERRIDE_ACTION)
 396                         continue;
 397                 if(inhibit_zero && s->svr.rpz_action[i] == 0)
 398                         continue;
 399                 PR_UL_SUB("num.rpz.action", rpz_action_to_string(i), s->svr.rpz_action[i]);
 400         }
 401 #ifdef USE_DNSCRYPT
 402         PR_UL("dnscrypt_shared_secret.cache.count",
 403                          s->svr.shared_secret_cache_count);
 404         PR_UL("num.query.dnscrypt.shared_secret.cachemiss",
 405                          s->svr.num_query_dnscrypt_secret_missed_cache);
 406         PR_UL("dnscrypt_nonce.cache.count", s->svr.nonce_cache_count);
 407         PR_UL("num.query.dnscrypt.replay",
 408                          s->svr.num_query_dnscrypt_replay);
 409 #endif /* USE_DNSCRYPT */
 410         PR_UL("num.query.authzone.up", s->svr.num_query_authzone_up);
 411         PR_UL("num.query.authzone.down", s->svr.num_query_authzone_down);
 412 #ifdef CLIENT_SUBNET
 413         PR_UL("num.query.subnet", s->svr.num_query_subnet);
 414         PR_UL("num.query.subnet_cache", s->svr.num_query_subnet_cache);
 415 #endif
 416 #ifdef USE_CACHEDB
 417         PR_UL("num.query.cachedb", s->svr.num_query_cachedb);
 418 #endif
 419 }
 420
 421 /** print statistics out of memory structures */
 422 static void do_stats_shm(struct config_file* cfg, struct ub_stats_info* stats,
 423         struct ub_shm_stat_info* shm_stat)
 424 {
 425         int i;
 426         char nm[32];
 427         for(i=0; i<cfg->num_threads; i++) {
 428                 snprintf(nm, sizeof(nm), "thread%d", i);
 429                 pr_stats(nm, &stats[i+1]);
 430         }
 431         pr_stats("total", &stats[0]);
 432         print_uptime(shm_stat);
 433         if(cfg->stat_extended) {
 434                 print_mem(shm_stat, &stats[0]);
 435                 print_hist(stats);
 436                 print_extended(stats, cfg->stat_inhibit_zero);
 437         }
 438 }
 439 #endif /* HAVE_SHMGET */
 440
 441 /** print statistics from shm memory segment */
 442 static void print_stats_shm(const char* cfgfile, int quiet)
 443 {
 444 #ifdef HAVE_SHMGET
 445         struct config_file* cfg;
 446         struct ub_stats_info* stats;
 447         struct ub_shm_stat_info* shm_stat;
 448         int id_ctl, id_arr;
 449         /* read config */
 450         if(!(cfg = config_create()))
 451                 fatal_exit("out of memory");
 452         if(!config_read(cfg, cfgfile, NULL))
 453                 fatal_exit("could not read config file");
 454         /* get shm segments */
 455         id_ctl = shmget(cfg->shm_key, sizeof(int), SHM_R);
 456         if(id_ctl == -1) {
 457                 fatal_exit("shmget(%d): %s", cfg->shm_key, strerror(errno));
 458         }
 459         id_arr = shmget(cfg->shm_key+1, sizeof(int), SHM_R);
 460         if(id_arr == -1) {
 461                 fatal_exit("shmget(%d): %s", cfg->shm_key+1, strerror(errno));
 462         }
 463         shm_stat = (struct ub_shm_stat_info*)shmat(id_ctl, NULL, SHM_RDONLY);
 464         if(shm_stat == (void*)-1) {
 465                 fatal_exit("shmat(%d): %s", id_ctl, strerror(errno));
 466         }
 467         stats = (struct ub_stats_info*)shmat(id_arr, NULL, SHM_RDONLY);
 468         if(stats == (void*)-1) {
 469                 fatal_exit("shmat(%d): %s", id_arr, strerror(errno));
 470         }
 471
 472
 473         if(!quiet) {
 474                 /* print the stats */
 475                 do_stats_shm(cfg, stats, shm_stat);
 476         }
 477
 478         /* shutdown */
 479         shmdt(shm_stat);
 480         shmdt(stats);
 481         config_delete(cfg);
 482 #else
 483         (void)cfgfile;
 484         (void)quiet;
 485 #endif /* HAVE_SHMGET */
 486 }
 487
 488 /** exit with ssl error */
 489 static void ssl_err(const char* s)
 490 {
 491         fprintf(stderr, "error: %s\n", s);
 492         ERR_print_errors_fp(stderr);
 493         exit(1);
 494 }
 495
 496 /** exit with ssl error related to a file path */
 497 static void ssl_path_err(const char* s, const char *path)
 498 {
 499         unsigned long err;
 500         err = ERR_peek_error();
 501         if(ERR_GET_LIB(err) == ERR_LIB_SYS) {
 502                 fprintf(stderr, "error: %s\n%s: %s\n",
 503                         s, path, ERR_reason_error_string(err));
 504                 exit(1);
 505         } else {
 506                 ssl_err(s);
 507         }
 508 }
 509
 510 /** setup SSL context */
 511 static SSL_CTX*
 512 setup_ctx(struct config_file* cfg)
 513 {
 514         char* s_cert=NULL, *c_key=NULL, *c_cert=NULL;
 515         SSL_CTX* ctx;
 516
 517         if(!(options_remote_is_address(cfg) && cfg->control_use_cert))
 518                 return NULL;
 519         s_cert = fname_after_chroot(cfg->server_cert_file, cfg, 1);
 520         c_key = fname_after_chroot(cfg->control_key_file, cfg, 1);
 521         c_cert = fname_after_chroot(cfg->control_cert_file, cfg, 1);
 522         if(!s_cert || !c_key || !c_cert)
 523                 fatal_exit("out of memory");
 524         ctx = SSL_CTX_new(SSLv23_client_method());
 525         if(!ctx)
 526                 ssl_err("could not allocate SSL_CTX pointer");
 527 #if SSL_OP_NO_SSLv2 != 0
 528         if((SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) & SSL_OP_NO_SSLv2)
 529                 != SSL_OP_NO_SSLv2)
 530                 ssl_err("could not set SSL_OP_NO_SSLv2");
 531 #endif
 532         if((SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv3) & SSL_OP_NO_SSLv3)
 533                 != SSL_OP_NO_SSLv3)
 534                 ssl_err("could not set SSL_OP_NO_SSLv3");
 535 #if defined(SSL_OP_NO_RENEGOTIATION)
 536         /* disable client renegotiation */
 537         if((SSL_CTX_set_options(ctx, SSL_OP_NO_RENEGOTIATION) &
 538                 SSL_OP_NO_RENEGOTIATION) != SSL_OP_NO_RENEGOTIATION)
 539                 ssl_err("could not set SSL_OP_NO_RENEGOTIATION");
 540 #endif
 541         if(!SSL_CTX_use_certificate_chain_file(ctx,c_cert))
 542                 ssl_path_err("Error setting up SSL_CTX client cert", c_cert);
 543         if(!SSL_CTX_use_PrivateKey_file(ctx,c_key,SSL_FILETYPE_PEM))
 544                 ssl_path_err("Error setting up SSL_CTX client key", c_key);
 545         if(!SSL_CTX_check_private_key(ctx))
 546                 ssl_err("Error setting up SSL_CTX client key");
 547         if(SSL_CTX_load_verify_locations(ctx, s_cert, NULL) != 1)
 548                 ssl_path_err("Error setting up SSL_CTX verify, server cert",
 549                              s_cert);
 550         SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, NULL);
 551
 552         free(s_cert);
 553         free(c_key);
 554         free(c_cert);
 555         return ctx;
 556 }
 557
 558 /** check connect error */
 559 static void
 560 checkconnecterr(int err, const char* svr, struct sockaddr_storage* addr,
 561         socklen_t addrlen, int statuscmd, int useport)
 562 {
 563 #ifndef USE_WINSOCK
 564         if(!useport) log_err("connect: %s for %s", strerror(err), svr);
 565         else log_err_addr("connect", strerror(err), addr, addrlen);
 566         if(err == ECONNREFUSED && statuscmd) {
 567                 printf("unbound is stopped\n");
 568                 exit(3);
 569         }
 570 #else
 571         int wsaerr = err;
 572         if(!useport) log_err("connect: %s for %s", wsa_strerror(wsaerr), svr);
 573         else log_err_addr("connect", wsa_strerror(wsaerr), addr, addrlen);
 574         if(wsaerr == WSAECONNREFUSED && statuscmd) {
 575                 printf("unbound is stopped\n");
 576                 exit(3);
 577         }
 578 #endif
 579         exit(1);
 580 }
 581
 582 /** contact the server with TCP connect */
 583 static int
 584 contact_server(const char* svr, struct config_file* cfg, int statuscmd)
 585 {
 586         struct sockaddr_storage addr;
 587         socklen_t addrlen;
 588         int addrfamily = 0, proto = IPPROTO_TCP;
 589         int fd, useport = 1;
 590         char** rcif = NULL;
 591         int num_rcif = 0;
 592         /* use svr or the first config entry */
 593         if(!svr) {
 594                 if(cfg->control_ifs.first) {
 595                         struct sockaddr_storage addr2;
 596                         socklen_t addrlen2;
 597                         if(extstrtoaddr(cfg->control_ifs.first->str, &addr2,
 598                                 &addrlen2, UNBOUND_DNS_PORT)) {
 599                                 svr = cfg->control_ifs.first->str;
 600                         } else {
 601                                 if(!resolve_interface_names(NULL, 0,
 602                                         cfg->control_ifs.first, &rcif,
 603                                         &num_rcif)) {
 604                                         fatal_exit("could not resolve interface names");
 605                                 }
 606                                 if(rcif == NULL || num_rcif == 0) {
 607                                         fatal_exit("no control interfaces");
 608                                 }
 609                                 svr = rcif[0];
 610                         }
 611                 } else if(cfg->do_ip4) {
 612                         svr = "127.0.0.1";
 613                 } else {
 614                         svr = "::1";
 615                 }
 616                 /* config 0 addr (everything), means ask localhost */
 617                 if(strcmp(svr, "0.0.0.0") == 0)
 618                         svr = "127.0.0.1";
 619                 else if(strcmp(svr, "::0") == 0 ||
 620                         strcmp(svr, "0::0") == 0 ||
 621                         strcmp(svr, "0::") == 0 ||
 622                         strcmp(svr, "::") == 0)
 623                         svr = "::1";
 624         }
 625         if(strchr(svr, '@')) {
 626                 if(!extstrtoaddr(svr, &addr, &addrlen, UNBOUND_DNS_PORT))
 627                         fatal_exit("could not parse IP@port: %s", svr);
 628 #ifdef HAVE_SYS_UN_H
 629         } else if(svr[0] == '/') {
 630                 struct sockaddr_un* usock = (struct sockaddr_un *) &addr;
 631                 usock->sun_family = AF_LOCAL;
 632 #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN
 633                 usock->sun_len = (unsigned)sizeof(usock);
 634 #endif
 635                 (void)strlcpy(usock->sun_path, svr, sizeof(usock->sun_path));
 636                 addrlen = (socklen_t)sizeof(struct sockaddr_un);
 637                 addrfamily = AF_LOCAL;
 638                 useport = 0;
 639                 proto = 0;
 640 #endif
 641         } else {
 642                 if(!ipstrtoaddr(svr, cfg->control_port, &addr, &addrlen))
 643                         fatal_exit("could not parse IP: %s", svr);
 644         }
 645
 646         if(addrfamily == 0)
 647                 addrfamily = addr_is_ip6(&addr, addrlen)?PF_INET6:PF_INET;
 648         fd = socket(addrfamily, SOCK_STREAM, proto);
 649         if(fd == -1) {
 650                 fatal_exit("socket: %s", sock_strerror(errno));
 651         }
 652         fd_set_nonblock(fd);
 653         if(connect(fd, (struct sockaddr*)&addr, addrlen) < 0) {
 654 #ifndef USE_WINSOCK
 655 #ifdef EINPROGRESS
 656                 if(errno != EINPROGRESS) {
 657                         checkconnecterr(errno, svr, &addr,
 658                                 addrlen, statuscmd, useport);
 659                 }
 660 #endif
 661 #else
 662                 if(WSAGetLastError() != WSAEINPROGRESS &&
 663                         WSAGetLastError() != WSAEWOULDBLOCK) {
 664                         checkconnecterr(WSAGetLastError(), svr, &addr,
 665                                 addrlen, statuscmd, useport);
 666                 }
 667 #endif
 668         }
 669         while(1) {
 670                 fd_set rset, wset, eset;
 671                 struct timeval tv;
 672                 FD_ZERO(&rset);
 673                 FD_SET(FD_SET_T fd, &rset);
 674                 FD_ZERO(&wset);
 675                 FD_SET(FD_SET_T fd, &wset);
 676                 FD_ZERO(&eset);
 677                 FD_SET(FD_SET_T fd, &eset);
 678                 tv.tv_sec = UNBOUND_CONTROL_CONNECT_TIMEOUT/1000;
 679                 tv.tv_usec= (UNBOUND_CONTROL_CONNECT_TIMEOUT%1000)*1000;
 680                 if(select(fd+1, &rset, &wset, &eset, &tv) == -1) {
 681                         fatal_exit("select: %s", sock_strerror(errno));
 682                 }
 683                 if(!FD_ISSET(fd, &rset) && !FD_ISSET(fd, &wset) &&
 684                         !FD_ISSET(fd, &eset)) {
 685                         fatal_exit("timeout: could not connect to server");
 686                 } else {
 687                         /* check nonblocking connect error */
 688                         int error = 0;
 689                         socklen_t len = (socklen_t)sizeof(error);
 690                         if(getsockopt(fd, SOL_SOCKET, SO_ERROR, (void*)&error,
 691                                 &len) < 0) {
 692 #ifndef USE_WINSOCK
 693                                 error = errno; /* on solaris errno is error */
 694 #else
 695                                 error = WSAGetLastError();
 696 #endif
 697                         }
 698                         if(error != 0) {
 699 #ifndef USE_WINSOCK
 700 #ifdef EINPROGRESS
 701                                 if(error == EINPROGRESS)
 702                                         continue; /* try again later */
 703 #endif
 704 #ifdef EWOULDBLOCK
 705                                 if(error == EWOULDBLOCK)
 706                                         continue; /* try again later */
 707 #endif
 708 #else
 709                                 if(error == WSAEINPROGRESS)
 710                                         continue; /* try again later */
 711                                 if(error == WSAEWOULDBLOCK)
 712                                         continue; /* try again later */
 713 #endif
 714                                 checkconnecterr(error, svr, &addr, addrlen,
 715                                         statuscmd, useport);
 716                         }
 717                 }
 718                 break;
 719         }
 720         fd_set_block(fd);
 721         config_del_strarray(rcif, num_rcif);
 722         return fd;
 723 }
 724
 725 /** setup SSL on the connection */
 726 static SSL*
 727 setup_ssl(SSL_CTX* ctx, int fd)
 728 {
 729         SSL* ssl;
 730         X509* x;
 731         int r;
 732
 733         if(!ctx) return NULL;
 734         ssl = SSL_new(ctx);
 735         if(!ssl)
 736                 ssl_err("could not SSL_new");
 737         SSL_set_connect_state(ssl);
 738         (void)SSL_set_mode(ssl, (long)SSL_MODE_AUTO_RETRY);
 739         if(!SSL_set_fd(ssl, fd))
 740                 ssl_err("could not SSL_set_fd");
 741         while(1) {
 742                 ERR_clear_error();
 743                 if( (r=SSL_do_handshake(ssl)) == 1)
 744                         break;
 745                 r = SSL_get_error(ssl, r);
 746                 if(r != SSL_ERROR_WANT_READ && r != SSL_ERROR_WANT_WRITE)
 747                         ssl_err("SSL handshake failed");
 748                 /* wants to be called again */
 749         }
 750
 751         /* check authenticity of server */
 752         if(SSL_get_verify_result(ssl) != X509_V_OK)
 753                 ssl_err("SSL verification failed");
 754         x = SSL_get_peer_certificate(ssl);
 755         if(!x)
 756                 ssl_err("Server presented no peer certificate");
 757         X509_free(x);
 758
 759         return ssl;
 760 }
 761
 762 /** read from ssl or fd, fatalexit on error, 0 EOF, 1 success */
 763 static int
 764 remote_read(SSL* ssl, int fd, char* buf, size_t len)
 765 {
 766         if(ssl) {
 767                 int r;
 768                 ERR_clear_error();
 769                 if((r = SSL_read(ssl, buf, (int)len-1)) <= 0) {
 770                         if(SSL_get_error(ssl, r) == SSL_ERROR_ZERO_RETURN) {
 771                                 /* EOF */
 772                                 return 0;
 773                         }
 774                         ssl_err("could not SSL_read");
 775                 }
 776                 buf[r] = 0;
 777         } else {
 778                 ssize_t rr = recv(fd, buf, len-1, 0);
 779                 if(rr <= 0) {
 780                         if(rr == 0) {
 781                                 /* EOF */
 782                                 return 0;
 783                         }
 784                         fatal_exit("could not recv: %s", sock_strerror(errno));
 785                 }
 786                 buf[rr] = 0;
 787         }
 788         return 1;
 789 }
 790
 791 /** write to ssl or fd, fatalexit on error */
 792 static void
 793 remote_write(SSL* ssl, int fd, const char* buf, size_t len)
 794 {
 795         if(ssl) {
 796                 if(SSL_write(ssl, buf, (int)len) <= 0)
 797                         ssl_err("could not SSL_write");
 798         } else {
 799                 if(send(fd, buf, len, 0) < (ssize_t)len) {
 800                         fatal_exit("could not send: %s", sock_strerror(errno));
 801                 }
 802         }
 803 }
 804
 805 /** check args, to see if too many args. Because when a file is sent it
 806  * would wait for the terminal, and we can check for too many arguments,
 807  * eg. user put arguments on the commandline. */
 808 static void
 809 check_args_for_listcmd(int argc, char* argv[])
 810 {
 811         if(argc >= 1 && (strcmp(argv[0], "local_zones") == 0 ||
 812                 strcmp(argv[0], "local_zones_remove") == 0 ||
 813                 strcmp(argv[0], "local_datas") == 0 ||
 814                 strcmp(argv[0], "local_datas_remove") == 0) &&
 815                 argc >= 2) {
 816                 fatal_exit("too many arguments for command '%s', "
 817                         "content is piped in from stdin", argv[0]);
 818         }
 819         if(argc >= 1 && (strcmp(argv[0], "view_local_datas") == 0 ||
 820                 strcmp(argv[0], "view_local_datas_remove") == 0) &&
 821                 argc >= 3) {
 822                 fatal_exit("too many arguments for command '%s', "
 823                         "content is piped in from stdin", argv[0]);
 824         }
 825 }
 826
 827 /** send stdin to server */
 828 static void
 829 send_file(SSL* ssl, int fd, FILE* in, char* buf, size_t sz)
 830 {
 831         while(fgets(buf, (int)sz, in)) {
 832                 remote_write(ssl, fd, buf, strlen(buf));
 833         }
 834 }
 835
 836 /** send end-of-file marker to server */
 837 static void
 838 send_eof(SSL* ssl, int fd)
 839 {
 840         char e[] = {0x04, 0x0a};
 841         remote_write(ssl, fd, e, sizeof(e));
 842 }
 843
 844 /** send command and display result */
 845 static int
 846 go_cmd(SSL* ssl, int fd, int quiet, int argc, char* argv[])
 847 {
 848         char pre[10];
 849         const char* space=" ";
 850         const char* newline="\n";
 851         int was_error = 0, first_line = 1;
 852         int i;
 853         char buf[1024];
 854         snprintf(pre, sizeof(pre), "UBCT%d ", UNBOUND_CONTROL_VERSION);
 855         remote_write(ssl, fd, pre, strlen(pre));
 856         for(i=0; i<argc; i++) {
 857                 remote_write(ssl, fd, space, strlen(space));
 858                 remote_write(ssl, fd, argv[i], strlen(argv[i]));
 859         }
 860         remote_write(ssl, fd, newline, strlen(newline));
 861
 862         if(argc == 1 && strcmp(argv[0], "load_cache") == 0) {
 863                 send_file(ssl, fd, stdin, buf, sizeof(buf));
 864         }
 865         else if(argc >= 1 && (strcmp(argv[0], "local_zones") == 0 ||
 866                 strcmp(argv[0], "local_zones_remove") == 0 ||
 867                 strcmp(argv[0], "local_datas") == 0 ||
 868                 strcmp(argv[0], "view_local_datas") == 0 ||
 869                 strcmp(argv[0], "local_datas_remove") == 0 ||
 870                 strcmp(argv[0], "view_local_datas_remove") == 0)) {
 871                 send_file(ssl, fd, stdin, buf, sizeof(buf));
 872                 send_eof(ssl, fd);
 873         }
 874
 875         while(1) {
 876                 if(remote_read(ssl, fd, buf, sizeof(buf)) == 0) {
 877                         break; /* EOF */
 878                 }
 879                 if(first_line && strncmp(buf, "error", 5) == 0) {
 880                         printf("%s", buf);
 881                         was_error = 1;
 882                 } else if(!quiet) {
 883                         printf("%s", buf);
 884                 }
 885
 886                 first_line = 0;
 887         }
 888         return was_error;
 889 }
 890
 891 /** go ahead and read config, contact server and perform command and display */
 892 static int
 893 go(const char* cfgfile, char* svr, int quiet, int argc, char* argv[])
 894 {
 895         struct config_file* cfg;
 896         int fd, ret;
 897         SSL_CTX* ctx;
 898         SSL* ssl;
 899
 900         /* read config */
 901         if(!(cfg = config_create()))
 902                 fatal_exit("out of memory");
 903         if(!config_read(cfg, cfgfile, NULL))
 904                 fatal_exit("could not read config file");
 905         if(!cfg->remote_control_enable)
 906                 log_warn("control-enable is 'no' in the config file.");
 907 #ifdef UB_ON_WINDOWS
 908         w_config_adjust_directory(cfg);
 909 #endif
 910         ctx = setup_ctx(cfg);
 911
 912         /* contact server */
 913         fd = contact_server(svr, cfg, argc>0&&strcmp(argv[0],"status")==0);
 914         ssl = setup_ssl(ctx, fd);
 915
 916         /* send command */
 917         ret = go_cmd(ssl, fd, quiet, argc, argv);
 918
 919         if(ssl) SSL_free(ssl);
 920         sock_close(fd);
 921         if(ctx) SSL_CTX_free(ctx);
 922         config_delete(cfg);
 923         return ret;
 924 }
 925
 926 /** getopt global, in case header files fail to declare it. */
 927 extern int optind;
 928 /** getopt global, in case header files fail to declare it. */
 929 extern char* optarg;
 930
 931 /** Main routine for unbound-control */
 932 int main(int argc, char* argv[])
 933 {
 934         int c, ret;
 935         int quiet = 0;
 936         const char* cfgfile = CONFIGFILE;
 937         char* svr = NULL;
 938 #ifdef USE_WINSOCK
 939         int r;
 940         WSADATA wsa_data;
 941 #endif
 942 #ifdef USE_THREAD_DEBUG
 943         /* stop the file output from unbound-control, overwrites the servers */
 944         extern int check_locking_order;
 945         check_locking_order = 0;
 946 #endif /* USE_THREAD_DEBUG */
 947         checklock_start();
 948         log_ident_set("unbound-control");
 949         log_init(NULL, 0, NULL);
 950 #ifdef USE_WINSOCK
 951         /* use registry config file in preference to compiletime location */
 952         if(!(cfgfile=w_lookup_reg_str("Software\\Unbound", "ConfigFile")))
 953                 cfgfile = CONFIGFILE;
 954 #endif
 955         /* parse the options */
 956         while( (c=getopt(argc, argv, "c:s:qh")) != -1) {
 957                 switch(c) {
 958                 case 'c':
 959                         cfgfile = optarg;
 960                         break;
 961                 case 's':
 962                         svr = optarg;
 963                         break;
 964                 case 'q':
 965                         quiet = 1;
 966                         break;
 967                 case '?':
 968                 case 'h':
 969                 default:
 970                         usage();
 971                 }
 972         }
 973         argc -= optind;
 974         argv += optind;
 975         if(argc == 0)
 976                 usage();
 977         if(argc >= 1 && strcmp(argv[0], "start")==0) {
 978 #if (defined(TARGET_OS_TV) && TARGET_OS_TV) || (defined(TARGET_OS_WATCH) && TARGET_OS_WATCH)
 979                 fatal_exit("could not exec unbound: %s",
 980                         strerror(ENOSYS));
 981 #else
 982                 if(execlp("unbound", "unbound", "-c", cfgfile,
 983                         (char*)NULL) < 0) {
 984                         fatal_exit("could not exec unbound: %s",
 985                                 strerror(errno));
 986                 }
 987 #endif
 988         }
 989         if(argc >= 1 && strcmp(argv[0], "stats_shm")==0) {
 990                 print_stats_shm(cfgfile, quiet);
 991                 return 0;
 992         }
 993         check_args_for_listcmd(argc, argv);
 994
 995 #ifdef USE_WINSOCK
 996         if((r = WSAStartup(MAKEWORD(2,2), &wsa_data)) != 0)
 997                 fatal_exit("WSAStartup failed: %s", wsa_strerror(r));
 998 #endif
 999
1000 #ifdef HAVE_ERR_LOAD_CRYPTO_STRINGS
1001         ERR_load_crypto_strings();
1002 #endif
1003 #if OPENSSL_VERSION_NUMBER < 0x10100000 || !defined(HAVE_OPENSSL_INIT_SSL)
1004         ERR_load_SSL_strings();
1005 #endif
1006 #if OPENSSL_VERSION_NUMBER < 0x10100000 || !defined(HAVE_OPENSSL_INIT_CRYPTO)
1007 #  ifndef S_SPLINT_S
1008         OpenSSL_add_all_algorithms();
1009 #  endif
1010 #else
1011         OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS
1012                 | OPENSSL_INIT_ADD_ALL_DIGESTS
1013                 | OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
1014 #endif
1015 #if OPENSSL_VERSION_NUMBER < 0x10100000 || !defined(HAVE_OPENSSL_INIT_SSL)
1016         (void)SSL_library_init();
1017 #else
1018         (void)OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL);
1019 #endif
1020
1021         if(!RAND_status()) {
1022                 /* try to seed it */
1023                 unsigned char buf[256];
1024                 unsigned int seed=(unsigned)time(NULL) ^ (unsigned)getpid();
1025                 unsigned int v = seed;
1026                 size_t i;
1027                 for(i=0; i<256/sizeof(v); i++) {
1028                         memmove(buf+i*sizeof(v), &v, sizeof(v));
1029                         v = v*seed + (unsigned int)i;
1030                 }
1031                 RAND_seed(buf, 256);
1032                 log_warn("no entropy, seeding openssl PRNG with time\n");
1033         }
1034
1035         ret = go(cfgfile, svr, quiet, argc, argv);
1036
1037 #ifdef USE_WINSOCK
1038         WSACleanup();
1039 #endif
1040         checklock_stop();
1041         return ret;
1042 }