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   adns_state ads;
 102   adns_query *qus, qu;
 103   adns_answer *ans;
 104   const char *initstring, *rrtn, *fmtn;
 105   const char *const *fdomlist, *domain;
 106   char *show, *cp;
 107   int len, i, qc, qi, tc, ti, ch, qflags, initflagsnum, npollfds, npollfdsavail, timeout;
 108   struct pollfd *pollfds;
 109   adns_status r, ri;
 110   const adns_rrtype *types;
 111   struct timeval now;
 112   adns_rrtype *types_a;
 113   char ownflags[10];
 114   char *ep;
 115   const char *initflags, *owninitflags;
 116
 117   if (argv[0] && argv[1] && argv[1][0] == '-') {
 118     initflags= argv[1]+1;
 119     argv++;
 120   } else {
 121     initflags= "";
 122   }
 123   if (argv[0] && argv[1] && argv[1][0] == '/') {
 124     initstring= argv[1]+1;
 125     argv++;
 126   } else {
 127     initstring= 0;
 128   }
 129
 130   initflagsnum= strtoul(initflags,&ep,0);
 131   if (*ep == ',') {
 132     owninitflags= ep+1;
 133     if (!consistsof(owninitflags,"p")) {
 134       fputs("unknown owninitflag\n",stderr);
 135       exit(4);
 136     }
 137   } else if (!*ep) {
 138     owninitflags= "";
 139   } else {
 140     fputs("bad <initflagsnum>[,<owninitflags>]\n",stderr);
 141     exit(4);
 142   }
 143
 144   if (argv[0] && argv[1] && argv[1][0] == ':') {
 145     for (cp= argv[1]+1, tc=1; (ch= *cp); cp++)
 146       if (ch==',') tc++;
 147     types_a= malloc(sizeof(*types_a)*(tc+1));
 148     if (!types_a) { perror("malloc types"); exit(3); }
 149     for (cp= argv[1]+1, ti=0; ti<tc; ti++) {
 150       types_a[ti]= strtoul(cp,&cp,10);
 151       if ((ch= *cp)) {
 152         if (ch != ',') {
 153           fputs("usage: adnstest [-<initflagsnum>[,<owninitflags>]] [/<initstring>]\n"
 154                 "              [ :<typenum>,... ]\n"
 155                 "              [ [<queryflagsnum>[,<ownqueryflags>]/]<domain> ... ]\n"
 156                 "initflags:   p  use poll(2) instead of select(2)\n"
 157                 "queryflags:  a  print status abbrevs instead of strings\n",
 158                 stderr);
 159           exit(4);
 160         }
 161         cp++;
 162       }
 163     }
 164     *cp++= adns_r_none;
 165     types= types_a;
 166     argv++;
 167   } else {
 168     types= defaulttypes;
 169   }
 170
 171   if (argv[0] && argv[1]) fdomlist= (const char *const*)argv+1;
 172   else fdomlist= defaultargv;
 173
 174   for (qc=0; fdomlist[qc]; qc++);
 175   for (tc=0; types[tc] != adns_r_none; tc++);
 176   qus= malloc(sizeof(qus)*qc*tc);
 177   if (!qus) { perror("malloc qus"); exit(3); }
 178
 179   if (initstring) {
 180     r= adns_init_strcfg(&ads,
 181                         (adns_if_debug|adns_if_noautosys)^initflagsnum,
 182                         stdout,initstring);
 183   } else {
 184     r= adns_init(&ads,
 185                  (adns_if_debug|adns_if_noautosys)^initflagsnum,
 186                  0);
 187   }
 188   if (r) failure_errno("init",r);
 189
 190   npollfdsavail= 0;
 191   pollfds= 0;
 192
 193   for (qi=0; qi<qc; qi++) {
 194     fdom_split(fdomlist[qi],&domain,&qflags,ownflags,sizeof(ownflags));
 195     if (!consistsof(ownflags,"a")) {
 196       fputs("unknown ownqueryflag\n",stderr);
 197       exit(4);
 198     }
 199     for (ti=0; ti<tc; ti++) {
 200       fprintf(stdout,"%s flags %d type %d",domain,qflags,types[ti]);
 201       r= adns_submit(ads,domain,types[ti],qflags,0,&qus[qi*tc+ti]);
 202       if (r == adns_s_unknownrrtype) {
 203         fprintf(stdout," not implemented\n");
 204         qus[qi*tc+ti]= 0;
 205       } else if (r) {
 206         failure_errno("submit",r);
 207       } else {
 208         ri= adns_rr_info(types[ti], &rrtn,&fmtn,0, 0,0);
 209         putc(' ',stdout);
 210         dumptype(ri,rrtn,fmtn);
 211         fprintf(stdout," submitted\n");
 212       }
 213     }
 214   }
 215
 216   for (qi=0; qi<qc; qi++) {
 217     fdom_split(fdomlist[qi],&domain,&qflags,ownflags,sizeof(ownflags));
 218
 219     for (ti=0; ti<tc; ti++) {
 220       qu= qus[qi*tc+ti];
 221       if (!qu) continue;
 222
 223       if (strchr(owninitflags,'p')) {
 224         for (;;) {
 225           r= adns_check(ads,&qu,&ans,0);
 226           if (r != EWOULDBLOCK) break;
 227           for (;;) {
 228             npollfds= npollfdsavail;
 229             timeout= -1;
 230             r= adns_beforepoll(ads, pollfds, &npollfds, &timeout, 0);
 231             if (r != ERANGE) break;
 232             pollfds= realloc(pollfds,sizeof(*pollfds)*npollfds);
 233             if (!pollfds) failure_errno("realloc pollfds",errno);
 234             npollfdsavail= npollfds;
 235           }
 236           if (r) failure_errno("beforepoll",r);
 237           r= poll(pollfds,npollfds,timeout);
 238           if (r == -1) failure_errno("poll",errno);
 239           adns_afterpoll(ads,pollfds, r?npollfds:0, 0);
 240         }
 241       } else {
 242         r= adns_wait(ads,&qu,&ans,0);
 243       }
 244       if (r) failure_errno("wait/check",r);
 245
 246       if (gettimeofday(&now,0)) { perror("gettimeofday"); exit(3); }
 247
 248       ri= adns_rr_info(ans->type, &rrtn,&fmtn,&len, 0,0);
 249       fprintf(stdout, "%s flags %d type ",domain,qflags);
 250       dumptype(ri,rrtn,fmtn);
 251       fprintf(stdout, "%s%s: %s; nrrs=%d; cname=%s; owner=%s; ttl=%ld\n",
 252               ownflags[0] ? " ownflags=" : "", ownflags,
 253               strchr(ownflags,'a')
 254               ? adns_errabbrev(ans->status)
 255               : adns_strerror(ans->status),
 256               ans->nrrs,
 257               ans->cname ? ans->cname : "$",
 258               ans->owner ? ans->owner : "$",
 259               (long)ans->expires - (long)now.tv_sec);
 260       if (ans->nrrs) {
 261         assert(!ri);
 262         for (i=0; i<ans->nrrs; i++) {
 263           r= adns_rr_info(ans->type, 0,0,0, ans->rrs.bytes + i*len, &show);
 264           if (r) failure_status("info",r);
 265           fprintf(stdout," %s\n",show);
 266           free(show);
 267         }
 268       }
 269       free(ans);
 270     }
 271   }
 272
 273   free(qus);
 274   adns_finish(ads);
 275
 276   exit(0);
 277 }