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,"p")) {
 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                 "queryflags:  a  print status abbrevs instead of strings\n",
 166                 stderr);
 167           exit(4);
 168         }
 169         cp++;
 170       }
 171     }
 172     *cp++= adns_r_none;
 173     types= types_a;
 174     argv++;
 175   } else {
 176     types= defaulttypes;
 177   }
 178
 179   if (argv[0] && argv[1]) fdomlist= (const char *const*)argv+1;
 180   else fdomlist= defaultargv;
 181
 182   for (qc=0; fdomlist[qc]; qc++);
 183   for (tc=0; types[tc] != adns_r_none; tc++);
 184   mcs= malloc(sizeof(*mcs)*qc*tc);
 185   if (!mcs) { perror("malloc mcs"); exit(3); }
 186
 187   if (initstring) {
 188     r= adns_init_strcfg(&ads,
 189                         (adns_if_debug|adns_if_noautosys)^initflagsnum,
 190                         stdout,initstring);
 191   } else {
 192     r= adns_init(&ads,
 193                  (adns_if_debug|adns_if_noautosys)^initflagsnum,
 194                  0);
 195   }
 196   if (r) failure_errno("init",r);
 197
 198   npollfdsavail= 0;
 199   pollfds= 0;
 200
 201   for (qi=0; qi<qc; qi++) {
 202     fdom_split(fdomlist[qi],&domain,&qflags,ownflags,sizeof(ownflags));
 203     if (!consistsof(ownflags,"a")) {
 204       fputs("unknown ownqueryflag\n",stderr);
 205       exit(4);
 206     }
 207     for (ti=0; ti<tc; ti++) {
 208       mc= &mcs[qi*tc+ti];
 209       mc->doneyet= 0;
 210       mc->fdom= fdomlist[qi];
 211
 212       fprintf(stdout,"%s flags %d type %d",domain,qflags,types[ti]);
 213       r= adns_submit(ads,domain,types[ti],qflags,mc,&mc->qu);
 214       if (r == adns_s_unknownrrtype) {
 215         fprintf(stdout," not implemented\n");
 216         mc->qu= 0;
 217         mc->doneyet= 1;
 218       } else if (r) {
 219         failure_errno("submit",r);
 220       } else {
 221         ri= adns_rr_info(types[ti], &rrtn,&fmtn,0, 0,0);
 222         putc(' ',stdout);
 223         dumptype(ri,rrtn,fmtn);
 224         fprintf(stdout," submitted\n");
 225       }
 226     }
 227   }
 228
 229   for (;;) {
 230     for (qi=0; qi<qc; qi++) {
 231       for (ti=0; ti<tc; ti++) {
 232         mc= &mcs[qi*tc+ti];
 233         mc->found= 0;
 234       }
 235     }
 236     for (adns_forallqueries_begin(ads);
 237          (qu= adns_forallqueries_next(ads,&mcr));
 238          ) {
 239       mc= mcr;
 240       assert(qu == mc->qu);
 241       assert(!mc->doneyet);
 242       mc->found= 1;
 243     }
 244     mcw= 0;
 245     for (qi=0; qi<qc; qi++) {
 246       for (ti=0; ti<tc; ti++) {
 247         mc= &mcs[qi*tc+ti];
 248         if (mc->doneyet) continue;
 249         assert(mc->found);
 250         if (!mcw) mcw= mc;
 251       }
 252     }
 253     if (!mcw) break;
 254
 255     mc= mcw;
 256     qu= mcw->qu;
 257
 258       if (strchr(owninitflags,'p')) {
 259         for (;;) {
 260           r= adns_check(ads,&qu,&ans,&mcr);
 261           if (r != EWOULDBLOCK) break;
 262           for (;;) {
 263             npollfds= npollfdsavail;
 264             timeout= -1;
 265             r= adns_beforepoll(ads, pollfds, &npollfds, &timeout, 0);
 266             if (r != ERANGE) break;
 267             pollfds= realloc(pollfds,sizeof(*pollfds)*npollfds);
 268             if (!pollfds) failure_errno("realloc pollfds",errno);
 269             npollfdsavail= npollfds;
 270           }
 271           if (r) failure_errno("beforepoll",r);
 272           r= poll(pollfds,npollfds,timeout);
 273           if (r == -1) failure_errno("poll",errno);
 274           adns_afterpoll(ads,pollfds, r?npollfds:0, 0);
 275         }
 276       } else {
 277         r= adns_wait(ads,&qu,&ans,&mcr);
 278       }
 279       if (r) failure_errno("wait/check",r);
 280
 281       assert(mcr==mc);
 282       fdom_split(mc->fdom,&domain,&qflags,ownflags,sizeof(ownflags));
 283
 284       if (gettimeofday(&now,0)) { perror("gettimeofday"); exit(3); }
 285
 286       ri= adns_rr_info(ans->type, &rrtn,&fmtn,&len, 0,0);
 287       fprintf(stdout, "%s flags %d type ",domain,qflags);
 288       dumptype(ri,rrtn,fmtn);
 289       fprintf(stdout, "%s%s: %s; nrrs=%d; cname=%s; owner=%s; ttl=%ld\n",
 290               ownflags[0] ? " ownflags=" : "", ownflags,
 291               strchr(ownflags,'a')
 292               ? adns_errabbrev(ans->status)
 293               : adns_strerror(ans->status),
 294               ans->nrrs,
 295               ans->cname ? ans->cname : "$",
 296               ans->owner ? ans->owner : "$",
 297               (long)ans->expires - (long)now.tv_sec);
 298       if (ans->nrrs) {
 299         assert(!ri);
 300         for (i=0; i<ans->nrrs; i++) {
 301           r= adns_rr_info(ans->type, 0,0,0, ans->rrs.bytes + i*len, &show);
 302           if (r) failure_status("info",r);
 303           fprintf(stdout," %s\n",show);
 304           free(show);
 305         }
 306       }
 307       free(ans);
 308
 309       mc->doneyet= 1;
 310   }
 311
 312   free(mcs);
 313   adns_finish(ads);
 314
 315   exit(0);
 316 }