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

   1 /*
   2  * adnstest.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
  31 #include "adns.h"
  32
  33 #include "config.h"
  34
  35 #ifndef OUTPUTSTREAM
  36 # define OUTPUTSTREAM stdout
  37 #endif
  38
  39 #ifndef HAVE_POLL
  40 #undef poll
  41 int poll(struct pollfd *ufds, int nfds, int timeout) {
  42   fputs("poll(2) not supported on this system\n",stderr);
  43   exit(5);
  44 }
  45 #define adns_beforepoll(a,b,c,d,e) 0
  46 #define adns_afterpoll(a,b,c,d) 0
  47 #endif
  48
  49 static void failure_status(const char *what, adns_status st) NONRETURNING;
  50 static void failure_status(const char *what, adns_status st) {
  51   fprintf(stderr,"adns failure: %s: %s\n",what,adns_strerror(st));
  52   exit(2);
  53 }
  54
  55 static void failure_errno(const char *what, int errnoval) NONRETURNING;
  56 static void failure_errno(const char *what, int errnoval) {
  57   fprintf(stderr,"adns failure: %s: errno=%d\n",what,errnoval);
  58   exit(2);
  59 }
  60
  61 static void usageerr(const char *why) NONRETURNING;
  62 static void usageerr(const char *why) {
  63   fprintf(stderr,
  64           "bad usage: %s\n"
  65           "usage: adnstest [-<initflagsnum>[,<owninitflags>]] [/<initstring>]\n"
  66           "              [ :<typenum>,... ]\n"
  67           "              [ [<queryflagsnum>[,<ownqueryflags>]/]<domain> ... ]\n"
  68           "initflags:   p  use poll(2) instead of select(2)\n"
  69           "             s  use adns_wait with specified query, instead of 0\n"
  70           "queryflags:  a  print status abbrevs instead of strings\n"
  71           "exit status:  0 ok (though some queries may have failed)\n"
  72           "              1 used by test harness to indicate test failed\n"
  73           "              2 unable to submit or init or some such\n"
  74           "              3 unexpected failure\n"
  75           "              4 usage error\n"
  76           "              5 operation not supported on this system\n",
  77           why);
  78   exit(4);
  79 }
  80
  81 static const adns_rrtype defaulttypes[]= {
  82   adns_r_a,
  83   adns_r_ns_raw,
  84   adns_r_cname,
  85   adns_r_soa_raw,
  86   adns_r_ptr_raw,
  87   adns_r_hinfo,
  88   adns_r_mx_raw,
  89   adns_r_txt,
  90   adns_r_rp_raw,
  91
  92   adns_r_addr,
  93   adns_r_ns,
  94   adns_r_ptr,
  95   adns_r_mx,
  96
  97   adns_r_soa,
  98   adns_r_rp,
  99
 100   adns_r_none
 101 };
 102
 103 static void dumptype(adns_status ri, const char *rrtn, const char *fmtn) {
 104   fprintf(stdout, "%s(%s)%s%s",
 105           ri ? "?" : rrtn, ri ? "?" : fmtn ? fmtn : "-",
 106           ri ? " " : "", ri ? adns_strerror(ri) : "");
 107 }
 108
 109 static void fdom_split(const char *fdom, const char **dom_r, int *qf_r,
 110                        char *ownflags, int ownflags_l) {
 111   int qf;
 112   char *ep;
 113
 114   qf= strtoul(fdom,&ep,0);
 115   if (*ep == ',' && strchr(ep,'/')) {
 116     ep++;
 117     while (*ep != '/') {
 118       if (--ownflags_l <= 0) { fputs("too many flags\n",stderr); exit(3); }
 119       *ownflags++= *ep++;
 120     }
 121   }
 122   if (*ep != '/') { *dom_r= fdom; *qf_r= 0; }
 123   else { *dom_r= ep+1; *qf_r= qf; }
 124   *ownflags= 0;
 125 }
 126
 127 static int consistsof(const char *string, const char *accept) {
 128   return strspn(string,accept) == strlen(string);
 129 }
 130
 131 int main(int argc, char *const *argv) {
 132   struct myctx {
 133     adns_query qu;
 134     int doneyet, found;
 135     const char *fdom;
 136   };
 137
 138   adns_state ads;
 139   adns_query qu;
 140   struct myctx *mcs, *mc, *mcw;
 141   void *mcr;
 142   adns_answer *ans;
 143   const char *initstring, *rrtn, *fmtn;
 144   const char *const *fdomlist, *domain;
 145   char *show, *cp;
 146   int len, i, qc, qi, tc, ti, ch, qflags, initflagsnum, npollfds, npollfdsavail, timeout;
 147   struct pollfd *pollfds;
 148   adns_status ri;
 149   int r;
 150   const adns_rrtype *types;
 151   struct timeval now;
 152   adns_rrtype *types_a;
 153   char ownflags[10];
 154   char *ep;
 155   const char *initflags, *owninitflags;
 156
 157   if (argv[0] && argv[1] && argv[1][0] == '-') {
 158     initflags= argv[1]+1;
 159     argv++;
 160   } else {
 161     initflags= "";
 162   }
 163   if (argv[0] && argv[1] && argv[1][0] == '/') {
 164     initstring= argv[1]+1;
 165     argv++;
 166   } else {
 167     initstring= 0;
 168   }
 169
 170   initflagsnum= strtoul(initflags,&ep,0);
 171   if (*ep == ',') {
 172     owninitflags= ep+1;
 173     if (!consistsof(owninitflags,"ps")) usageerr("unknown owninitflag");
 174   } else if (!*ep) {
 175     owninitflags= "";
 176   } else {
 177     usageerr("bad <initflagsnum>[,<owninitflags>]");
 178   }
 179
 180   if (argv[0] && argv[1] && argv[1][0] == ':') {
 181     for (cp= argv[1]+1, tc=1; (ch= *cp); cp++)
 182       if (ch==',') tc++;
 183     types_a= malloc(sizeof(*types_a)*(tc+1));
 184     if (!types_a) { perror("malloc types"); exit(3); }
 185     for (cp= argv[1]+1, ti=0; ti<tc; ti++) {
 186       types_a[ti]= strtoul(cp,&cp,10);
 187       if ((ch= *cp)) {
 188         if (ch != ',') usageerr("unexpected char (not comma) in or between types");
 189         cp++;
 190       }
 191     }
 192     *cp++= adns_r_none;
 193     types= types_a;
 194     argv++;
 195   } else {
 196     types= defaulttypes;
 197   }
 198
 199   if (!(argv[0] && argv[1])) usageerr("no query domains supplied");
 200   fdomlist= (const char *const*)argv+1;
 201
 202   for (qc=0; fdomlist[qc]; qc++);
 203   for (tc=0; types[tc] != adns_r_none; tc++);
 204   mcs= malloc(sizeof(*mcs)*qc*tc);
 205   if (!mcs) { perror("malloc mcs"); exit(3); }
 206
 207   if (initstring) {
 208     r= adns_init_strcfg(&ads,
 209                         (adns_if_debug|adns_if_noautosys|adns_if_checkc_freq)
 210                         ^initflagsnum,
 211                         stdout,initstring);
 212   } else {
 213     r= adns_init(&ads,
 214                  (adns_if_debug|adns_if_noautosys)^initflagsnum,
 215                  0);
 216   }
 217   if (r) failure_errno("init",r);
 218
 219   npollfdsavail= 0;
 220   pollfds= 0;
 221
 222   for (qi=0; qi<qc; qi++) {
 223     fdom_split(fdomlist[qi],&domain,&qflags,ownflags,sizeof(ownflags));
 224     if (!consistsof(ownflags,"a")) usageerr("unknown ownqueryflag");
 225     for (ti=0; ti<tc; ti++) {
 226       mc= &mcs[qi*tc+ti];
 227       mc->doneyet= 0;
 228       mc->fdom= fdomlist[qi];
 229
 230       fprintf(stdout,"%s flags %d type %d",domain,qflags,types[ti]);
 231       r= adns_submit(ads,domain,types[ti],qflags,mc,&mc->qu);
 232       if (r == ENOSYS) {
 233         fprintf(stdout," not implemented\n");
 234         mc->qu= 0;
 235         mc->doneyet= 1;
 236       } else if (r) {
 237         failure_errno("submit",r);
 238       } else {
 239         ri= adns_rr_info(types[ti], &rrtn,&fmtn,0, 0,0);
 240         putc(' ',stdout);
 241         dumptype(ri,rrtn,fmtn);
 242         fprintf(stdout," submitted\n");
 243       }
 244     }
 245   }
 246
 247   for (;;) {
 248     for (qi=0; qi<qc; qi++) {
 249       for (ti=0; ti<tc; ti++) {
 250         mc= &mcs[qi*tc+ti];
 251         mc->found= 0;
 252       }
 253     }
 254     for (adns_forallqueries_begin(ads);
 255          (qu= adns_forallqueries_next(ads,&mcr));
 256          ) {
 257       mc= mcr;
 258       assert(qu == mc->qu);
 259       assert(!mc->doneyet);
 260       mc->found= 1;
 261     }
 262     mcw= 0;
 263     for (qi=0; qi<qc; qi++) {
 264       for (ti=0; ti<tc; ti++) {
 265         mc= &mcs[qi*tc+ti];
 266         if (mc->doneyet) continue;
 267         assert(mc->found);
 268         if (!mcw) mcw= mc;
 269       }
 270     }
 271     if (!mcw) break;
 272
 273     if (strchr(owninitflags,'s')) {
 274       qu= mcw->qu;
 275       mc= mcw;
 276     } else {
 277       qu= 0;
 278       mc= 0;
 279     }
 280
 281     if (strchr(owninitflags,'p')) {
 282       for (;;) {
 283         r= adns_check(ads,&qu,&ans,&mcr);
 284         if (r != EWOULDBLOCK) break;
 285         for (;;) {
 286           npollfds= npollfdsavail;
 287           timeout= -1;
 288           r= adns_beforepoll(ads, pollfds, &npollfds, &timeout, 0);
 289           if (r != ERANGE) break;
 290           pollfds= realloc(pollfds,sizeof(*pollfds)*npollfds);
 291           if (!pollfds) failure_errno("realloc pollfds",errno);
 292           npollfdsavail= npollfds;
 293         }
 294         if (r) failure_errno("beforepoll",r);
 295         r= poll(pollfds,npollfds,timeout);
 296         if (r == -1) failure_errno("poll",errno);
 297         adns_afterpoll(ads,pollfds, r?npollfds:0, 0);
 298       }
 299     } else {
 300       r= adns_wait(ads,&qu,&ans,&mcr);
 301     }
 302     if (r) failure_errno("wait/check",r);
 303
 304     if (mc) assert(mcr==mc);
 305     else mc= mcr;
 306     assert(qu==mc->qu);
 307     assert(!mc->doneyet);
 308
 309     fdom_split(mc->fdom,&domain,&qflags,ownflags,sizeof(ownflags));
 310
 311     if (gettimeofday(&now,0)) { perror("gettimeofday"); exit(3); }
 312
 313     ri= adns_rr_info(ans->type, &rrtn,&fmtn,&len, 0,0);
 314     fprintf(stdout, "%s flags %d type ",domain,qflags);
 315     dumptype(ri,rrtn,fmtn);
 316     fprintf(stdout, "%s%s: %s; nrrs=%d; cname=%s; owner=%s; ttl=%ld\n",
 317             ownflags[0] ? " ownflags=" : "", ownflags,
 318             strchr(ownflags,'a')
 319             ? adns_errabbrev(ans->status)
 320             : adns_strerror(ans->status),
 321             ans->nrrs,
 322             ans->cname ? ans->cname : "$",
 323             ans->owner ? ans->owner : "$",
 324             (long)ans->expires - (long)now.tv_sec);
 325     if (ans->nrrs) {
 326       assert(!ri);
 327       for (i=0; i<ans->nrrs; i++) {
 328         ri= adns_rr_info(ans->type, 0,0,0, ans->rrs.bytes + i*len, &show);
 329         if (ri) failure_status("info",ri);
 330         fprintf(stdout," %s\n",show);
 331         free(show);
 332       }
 333     }
 334     free(ans);
 335
 336     mc->doneyet= 1;
 337   }
 338
 339   free(mcs);
 340   adns_finish(ads);
 341
 342   exit(0);
 343 }