mdw@git.distorted.org.uk Git - adns/blob - client/adnstest.c

   1 /*
   2  * dtest.c
   3  * - simple test program, not part of the library
   4  */
   5 /*
   6  *  This file is part of adns, which is Copyright (C) 1997-1999 Ian Jackson
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2, or (at your option)
  11  *  any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software Foundation,
  20  *  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  21  */
  22
  23 #include <stdio.h>
  24 #include <sys/time.h>
  25 #include <unistd.h>
  26 #include <assert.h>
  27 #include <stdlib.h>
  28 #include <string.h>
  29 #include <errno.h>
  30 #include <sys/poll.h>
  31
  32 #ifndef OUTPUTSTREAM
  33 # define OUTPUTSTREAM stdout
  34 #endif
  35
  36 #include "adns.h"
  37
  38 static void failure_status(const char *what, adns_status st) {
  39   fprintf(stderr,"adns failure: %s: %s\n",what,adns_strerror(st));
  40   exit(2);
  41 }
  42
  43 static void failure_errno(const char *what, int errnoval) {
  44   fprintf(stderr,"adns failure: %s: errno=%d\n",what,errnoval);
  45   exit(2);
  46 }
  47
  48 static const char *defaultargv[]= { "ns.chiark.greenend.org.uk", 0 };
  49
  50 static const adns_rrtype defaulttypes[]= {
  51   adns_r_a,
  52   adns_r_ns_raw,
  53   adns_r_cname,
  54   adns_r_soa_raw,
  55   adns_r_ptr_raw,
  56   adns_r_hinfo,
  57   adns_r_mx_raw,
  58   adns_r_txt,
  59   adns_r_rp_raw,
  60
  61   adns_r_addr,
  62   adns_r_ns,
  63   adns_r_ptr,
  64   adns_r_mx,
  65
  66   adns_r_soa,
  67   adns_r_rp,
  68
  69   adns_r_none
  70 };
  71
  72 static void dumptype(adns_status ri, const char *rrtn, const char *fmtn) {
  73   fprintf(stdout, "%s(%s)%s%s",
  74           ri ? "?" : rrtn, ri ? "?" : fmtn ? fmtn : "-",
  75           ri ? " " : "", ri ? adns_strerror(ri) : "");
  76 }
  77
  78 static void fdom_split(const char *fdom, const char **dom_r, int *qf_r,
  79                        char *ownflags, int ownflags_l) {
  80   int qf;
  81   char *ep;
  82
  83   qf= strtoul(fdom,&ep,0);
  84   if (*ep == ',' && strchr(ep,'/')) {
  85     ep++;
  86     while (*ep != '/') {
  87       if (--ownflags_l <= 0) { fputs("too many flags\n",stderr); exit(3); }
  88       *ownflags++= *ep++;
  89     }
  90   }
  91   if (*ep != '/') { *dom_r= fdom; *qf_r= 0; }
  92   else { *dom_r= ep+1; *qf_r= qf; }
  93   *ownflags= 0;
  94 }
  95
  96 static int consistsof(const char *string, const char *accept) {
  97   return strspn(string,accept) == strlen(string);
  98 }
  99
 100 int main(int argc, char *const *argv) {
 101   struct myctx {
 102     adns_query qu;
 103     int doneyet, found;
 104     const char *fdom;
 105   };
 106
 107   adns_state ads;
 108   adns_query qu;
 109   struct myctx *mcs, *mc, *mcw;
 110   void *mcr;
 111   adns_answer *ans;
 112   const char *initstring, *rrtn, *fmtn;
 113   const char *const *fdomlist, *domain;
 114   char *show, *cp;
 115   int len, i, qc, qi, tc, ti, ch, qflags, initflagsnum, npollfds, npollfdsavail, timeout;
 116   struct pollfd *pollfds;
 117   adns_status r, ri;
 118   const adns_rrtype *types;
 119   struct timeval now;
 120   adns_rrtype *types_a;
 121   char ownflags[10];
 122   char *ep;
 123   const char *initflags, *owninitflags;
 124
 125   if (argv[0] && argv[1] && argv[1][0] == '-') {
 126     initflags= argv[1]+1;
 127     argv++;
 128   } else {
 129     initflags= "";
 130   }
 131   if (argv[0] && argv[1] && argv[1][0] == '/') {
 132     initstring= argv[1]+1;
 133     argv++;
 134   } else {
 135     initstring= 0;
 136   }
 137
 138   initflagsnum= strtoul(initflags,&ep,0);
 139   if (*ep == ',') {
 140     owninitflags= ep+1;
 141     if (!consistsof(owninitflags,"ps")) {
 142       fputs("unknown owninitflag\n",stderr);
 143       exit(4);
 144     }
 145   } else if (!*ep) {
 146     owninitflags= "";
 147   } else {
 148     fputs("bad <initflagsnum>[,<owninitflags>]\n",stderr);
 149     exit(4);
 150   }
 151
 152   if (argv[0] && argv[1] && argv[1][0] == ':') {
 153     for (cp= argv[1]+1, tc=1; (ch= *cp); cp++)
 154       if (ch==',') tc++;
 155     types_a= malloc(sizeof(*types_a)*(tc+1));
 156     if (!types_a) { perror("malloc types"); exit(3); }
 157     for (cp= argv[1]+1, ti=0; ti<tc; ti++) {
 158       types_a[ti]= strtoul(cp,&cp,10);
 159       if ((ch= *cp)) {
 160         if (ch != ',') {
 161           fputs("usage: adnstest [-<initflagsnum>[,<owninitflags>]] [/<initstring>]\n"
 162                 "              [ :<typenum>,... ]\n"
 163                 "              [ [<queryflagsnum>[,<ownqueryflags>]/]<domain> ... ]\n"
 164                 "initflags:   p  use poll(2) instead of select(2)\n"
 165                 "             s  use adns_wait with specified query, instead of 0\n"
 166                 "queryflags:  a  print status abbrevs instead of strings\n",
 167                 stderr);
 168           exit(4);
 169         }
 170         cp++;
 171       }
 172     }
 173     *cp++= adns_r_none;
 174     types= types_a;
 175     argv++;
 176   } else {
 177     types= defaulttypes;
 178   }
 179
 180   if (argv[0] && argv[1]) fdomlist= (const char *const*)argv+1;
 181   else fdomlist= defaultargv;
 182
 183   for (qc=0; fdomlist[qc]; qc++);
 184   for (tc=0; types[tc] != adns_r_none; tc++);
 185   mcs= malloc(sizeof(*mcs)*qc*tc);
 186   if (!mcs) { perror("malloc mcs"); exit(3); }
 187
 188   if (initstring) {
 189     r= adns_init_strcfg(&ads,
 190                         (adns_if_debug|adns_if_noautosys)^initflagsnum,
 191                         stdout,initstring);
 192   } else {
 193     r= adns_init(&ads,
 194                  (adns_if_debug|adns_if_noautosys)^initflagsnum,
 195                  0);
 196   }
 197   if (r) failure_errno("init",r);
 198
 199   npollfdsavail= 0;
 200   pollfds= 0;
 201
 202   for (qi=0; qi<qc; qi++) {
 203     fdom_split(fdomlist[qi],&domain,&qflags,ownflags,sizeof(ownflags));
 204     if (!consistsof(ownflags,"a")) {
 205       fputs("unknown ownqueryflag\n",stderr);
 206       exit(4);
 207     }
 208     for (ti=0; ti<tc; ti++) {
 209       mc= &mcs[qi*tc+ti];
 210       mc->doneyet= 0;
 211       mc->fdom= fdomlist[qi];
 212
 213       fprintf(stdout,"%s flags %d type %d",domain,qflags,types[ti]);
 214       r= adns_submit(ads,domain,types[ti],qflags,mc,&mc->qu);
 215       if (r == adns_s_unknownrrtype) {
 216         fprintf(stdout," not implemented\n");
 217         mc->qu= 0;
 218         mc->doneyet= 1;
 219       } else if (r) {
 220         failure_errno("submit",r);
 221       } else {
 222         ri= adns_rr_info(types[ti], &rrtn,&fmtn,0, 0,0);
 223         putc(' ',stdout);
 224         dumptype(ri,rrtn,fmtn);
 225         fprintf(stdout," submitted\n");
 226       }
 227     }
 228   }
 229
 230   for (;;) {
 231     for (qi=0; qi<qc; qi++) {
 232       for (ti=0; ti<tc; ti++) {
 233         mc= &mcs[qi*tc+ti];
 234         mc->found= 0;
 235       }
 236     }
 237     for (adns_forallqueries_begin(ads);
 238          (qu= adns_forallqueries_next(ads,&mcr));
 239          ) {
 240       mc= mcr;
 241       assert(qu == mc->qu);
 242       assert(!mc->doneyet);
 243       mc->found= 1;
 244     }
 245     mcw= 0;
 246     for (qi=0; qi<qc; qi++) {
 247       for (ti=0; ti<tc; ti++) {
 248         mc= &mcs[qi*tc+ti];
 249         if (mc->doneyet) continue;
 250         assert(mc->found);
 251         if (!mcw) mcw= mc;
 252       }
 253     }
 254     if (!mcw) break;
 255
 256     if (strchr(owninitflags,'s')) {
 257       qu= mcw->qu;
 258       mc= mcw;
 259     } else {
 260       qu= 0;
 261       mc= 0;
 262     }
 263
 264     if (strchr(owninitflags,'p')) {
 265       for (;;) {
 266         r= adns_check(ads,&qu,&ans,&mcr);
 267         if (r != EWOULDBLOCK) break;
 268         for (;;) {
 269           npollfds= npollfdsavail;
 270           timeout= -1;
 271           r= adns_beforepoll(ads, pollfds, &npollfds, &timeout, 0);
 272           if (r != ERANGE) break;
 273           pollfds= realloc(pollfds,sizeof(*pollfds)*npollfds);
 274           if (!pollfds) failure_errno("realloc pollfds",errno);
 275           npollfdsavail= npollfds;
 276         }
 277         if (r) failure_errno("beforepoll",r);
 278         r= poll(pollfds,npollfds,timeout);
 279         if (r == -1) failure_errno("poll",errno);
 280         adns_afterpoll(ads,pollfds, r?npollfds:0, 0);
 281       }
 282     } else {
 283       r= adns_wait(ads,&qu,&ans,&mcr);
 284     }
 285     if (r) failure_errno("wait/check",r);
 286
 287     if (mc) assert(mcr==mc);
 288     else mc= mcr;
 289     assert(qu==mc->qu);
 290     assert(!mc->doneyet);
 291
 292     fdom_split(mc->fdom,&domain,&qflags,ownflags,sizeof(ownflags));
 293
 294     if (gettimeofday(&now,0)) { perror("gettimeofday"); exit(3); }
 295
 296     ri= adns_rr_info(ans->type, &rrtn,&fmtn,&len, 0,0);
 297     fprintf(stdout, "%s flags %d type ",domain,qflags);
 298     dumptype(ri,rrtn,fmtn);
 299     fprintf(stdout, "%s%s: %s; nrrs=%d; cname=%s; owner=%s; ttl=%ld\n",
 300             ownflags[0] ? " ownflags=" : "", ownflags,
 301             strchr(ownflags,'a')
 302             ? adns_errabbrev(ans->status)
 303             : adns_strerror(ans->status),
 304             ans->nrrs,
 305             ans->cname ? ans->cname : "$",
 306             ans->owner ? ans->owner : "$",
 307             (long)ans->expires - (long)now.tv_sec);
 308     if (ans->nrrs) {
 309       assert(!ri);
 310       for (i=0; i<ans->nrrs; i++) {
 311         r= adns_rr_info(ans->type, 0,0,0, ans->rrs.bytes + i*len, &show);
 312         if (r) failure_status("info",r);
 313         fprintf(stdout," %s\n",show);
 314         free(show);
 315       }
 316     }
 317     free(ans);
 318
 319     mc->doneyet= 1;
 320   }
 321
 322   free(mcs);
 323   adns_finish(ads);
 324
 325   exit(0);
 326 }