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
   7  *    Copyright (C) 1997-2000,2003,2006,2014-2016  Ian Jackson
   8  *    Copyright (C) 2014  Mark Wooding
   9  *    Copyright (C) 1999-2000,2003,2006  Tony Finch
  10  *    Copyright (C) 1991 Massachusetts Institute of Technology
  11  *  (See the file INSTALL for full details.)
  12  *
  13  *  This program is free software; you can redistribute it and/or modify
  14  *  it under the terms of the GNU General Public License as published by
  15  *  the Free Software Foundation; either version 3, or (at your option)
  16  *  any later version.
  17  *
  18  *  This program is distributed in the hope that it will be useful,
  19  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  *  GNU General Public License for more details.
  22  *
  23  *  You should have received a copy of the GNU General Public License
  24  *  along with this program; if not, write to the Free Software Foundation.
  25  */
  26
  27 #include <stdio.h>
  28 #include <sys/time.h>
  29 #include <unistd.h>
  30 #include <assert.h>
  31 #include <stdlib.h>
  32 #include <string.h>
  33 #include <errno.h>
  34
  35 #define ADNS_FEATURE_MANYAF
  36 #include "config.h"
  37 #include "adns.h"
  38
  39 #ifdef ADNS_REGRESS_TEST
  40 # include "hredirect.h"
  41 # include "harness.h"
  42 # undef exit
  43 # define exit Texit
  44 #endif
  45
  46 struct myctx {
  47   adns_query qu;
  48   int doneyet, found;
  49   const char *fdom;
  50 };
  51
  52 static struct myctx *mcs;
  53 static adns_state ads;
  54 static adns_rrtype *types_a;
  55
  56 static void quitnow(int rc) NONRETURNING;
  57 static void quitnow(int rc) {
  58   free(mcs);
  59   free(types_a);
  60   if (ads) adns_finish(ads);
  61
  62   exit(rc);
  63 }
  64
  65 #ifndef HAVE_POLL
  66 #undef poll
  67 int poll(struct pollfd *ufds, int nfds, int timeout) {
  68   fputs("poll(2) not supported on this system\n",stderr);
  69   quitnow(5);
  70 }
  71 #define adns_beforepoll(a,b,c,d,e) 0
  72 #define adns_afterpoll(a,b,c,d) 0
  73 #endif
  74
  75 static void failure_status(const char *what, adns_status st) NONRETURNING;
  76 static void failure_status(const char *what, adns_status st) {
  77   fprintf(stderr,"adns failure: %s: %s\n",what,adns_strerror(st));
  78   quitnow(2);
  79 }
  80
  81 static void failure_errno(const char *what, int errnoval) NONRETURNING;
  82 static void failure_errno(const char *what, int errnoval) {
  83   switch (errnoval) {
  84 #define CE(e) \
  85   case e: fprintf(stderr,"adns failure: %s: errno=" #e "\n",what); break
  86   CE(EINVAL);
  87   CE(EINTR);
  88   CE(ESRCH);
  89   CE(EAGAIN);
  90   CE(ENOSYS);
  91   CE(ERANGE);
  92 #undef CE
  93   default: fprintf(stderr,"adns failure: %s: errno=%d\n",what,errnoval); break;
  94   }
  95   quitnow(2);
  96 }
  97
  98 static void usageerr(const char *why) NONRETURNING;
  99 static void usageerr(const char *why) {
 100   fprintf(stderr,
 101           "bad usage: %s\n"
 102           "usage: adnstest [-<initflagsnum>[,<owninitflags>]] [/<initstring>]\n"
 103           "              [ :<typenum>,... ]\n"
 104           "              [ [<queryflagsnum>[,<ownqueryflags>]/]<domain> ... ]\n"
 105           "initflags:   p  use poll(2) instead of select(2)\n"
 106           "             s  use adns_wait with specified query, instead of 0\n"
 107           "queryflags:  a  print status abbrevs instead of strings\n"
 108           "typenum:      may be 0x<hex>|<dec>, or 0x<hex> or <dec>\n"
 109           "exit status:  0 ok (though some queries may have failed)\n"
 110           "              1 used by test harness to indicate test failed\n"
 111           "              2 unable to submit or init or some such\n"
 112           "              3 unexpected failure\n"
 113           "              4 usage error\n"
 114           "              5 operation not supported on this system\n",
 115           why);
 116   quitnow(4);
 117 }
 118
 119 static const adns_rrtype defaulttypes[]= {
 120   adns_r_a,
 121   adns_r_ns_raw,
 122   adns_r_cname,
 123   adns_r_soa_raw,
 124   adns_r_ptr_raw,
 125   adns_r_hinfo,
 126   adns_r_mx_raw,
 127   adns_r_txt,
 128   adns_r_rp_raw,
 129
 130   adns_r_addr,
 131   adns_r_ns,
 132   adns_r_ptr,
 133   adns_r_mx,
 134
 135   adns_r_soa,
 136   adns_r_rp,
 137
 138   adns_r_none
 139 };
 140
 141 static void dumptype(adns_status ri, const char *rrtn, const char *fmtn) {
 142   fprintf(stdout, "%s(%s)%s%s",
 143           (!ri && rrtn) ? rrtn : "?", ri ? "?" : fmtn ? fmtn : "-",
 144           ri ? " " : "", ri ? adns_strerror(ri) : "");
 145 }
 146
 147 static void fdom_split(const char *fdom, const char **dom_r, int *qf_r,
 148                        char *ownflags, int ownflags_l) {
 149   int qf;
 150   char *ep;
 151
 152   qf= strtoul(fdom,&ep,0);
 153   if (*ep == ',' && strchr(ep,'/')) {
 154     ep++;
 155     while (*ep != '/') {
 156       if (--ownflags_l <= 0) { fputs("too many flags\n",stderr); quitnow(3); }
 157       *ownflags++= *ep++;
 158     }
 159   }
 160   if (*ep != '/') { *dom_r= fdom; *qf_r= 0; }
 161   else { *dom_r= ep+1; *qf_r= qf; }
 162   *ownflags= 0;
 163 }
 164
 165 static int consistsof(const char *string, const char *accept) {
 166   return strspn(string,accept) == strlen(string);
 167 }
 168
 169 int main(int argc, char *const *argv) {
 170   adns_query qu;
 171   struct myctx *mc, *mcw;
 172   void *mcr;
 173   adns_answer *ans;
 174   const char *initstring, *rrtn, *fmtn;
 175   const char *const *fdomlist, *domain;
 176   char *show, *cp;
 177   int len, i, qc, qi, tc, ti, ch, qflags, initflagsnum;
 178   adns_status ri;
 179   int r;
 180   const adns_rrtype *types;
 181   struct timeval now;
 182   char ownflags[10];
 183   char *ep;
 184   const char *initflags, *owninitflags;
 185
 186   if (argv[0] && argv[1] && argv[1][0] == '-') {
 187     initflags= argv[1]+1;
 188     argv++;
 189   } else {
 190     initflags= "";
 191   }
 192   if (argv[0] && argv[1] && argv[1][0] == '/') {
 193     initstring= argv[1]+1;
 194     argv++;
 195   } else {
 196     initstring= 0;
 197   }
 198
 199   initflagsnum= strtoul(initflags,&ep,0);
 200   if (*ep == ',') {
 201     owninitflags= ep+1;
 202     if (!consistsof(owninitflags,"ps")) usageerr("unknown owninitflag");
 203   } else if (!*ep) {
 204     owninitflags= "";
 205   } else {
 206     usageerr("bad <initflagsnum>[,<owninitflags>]");
 207   }
 208
 209   if (argv[0] && argv[1] && argv[1][0] == ':') {
 210     for (cp= argv[1]+1, tc=1; (ch= *cp); cp++)
 211       if (ch==',') tc++;
 212     types_a= malloc(sizeof(*types_a)*(tc+1));
 213     if (!types_a) { perror("malloc types"); quitnow(3); }
 214     for (cp= argv[1]+1, ti=0; ti<tc; ) {
 215       types_a[ti]= 0;
 216       for (;;) {
 217         types_a[ti] |= strtoul(cp,&cp,0);
 218         ch= *cp;
 219         if (!ch) break;
 220         cp++;
 221         if (ch=='|') continue;
 222         if (ch==',') break;
 223         usageerr("unexpected char (not comma) in or between types");
 224       }
 225       ti++;
 226       if (!ch) break;
 227     }
 228     types_a[ti]= adns_r_none;
 229     types= types_a;
 230     argv++;
 231   } else {
 232     types_a= 0;
 233     types= defaulttypes;
 234   }
 235
 236   if (!(argv[0] && argv[1])) usageerr("no query domains supplied");
 237   fdomlist= (const char *const*)argv+1;
 238
 239   for (qc=0; fdomlist[qc]; qc++);
 240   for (tc=0; types[tc] != adns_r_none; tc++);
 241   mcs= malloc(tc ? sizeof(*mcs)*qc*tc : 1);
 242   if (!mcs) { perror("malloc mcs"); quitnow(3); }
 243
 244   setvbuf(stdout,0,_IOLBF,0);
 245
 246   if (initstring) {
 247     r= adns_init_strcfg(&ads,
 248                         (adns_if_debug|adns_if_noautosys|adns_if_checkc_freq)
 249                         ^initflagsnum,
 250                         stdout,initstring);
 251   } else {
 252     r= adns_init(&ads,
 253                  (adns_if_debug|adns_if_noautosys)^initflagsnum,
 254                  0);
 255   }
 256   if (r) failure_errno("init",r);
 257
 258   for (qi=0; qi<qc; qi++) {
 259     fdom_split(fdomlist[qi],&domain,&qflags,ownflags,sizeof(ownflags));
 260     if (!consistsof(ownflags,"a")) usageerr("unknown ownqueryflag");
 261     for (ti=0; ti<tc; ti++) {
 262       mc= &mcs[qi*tc+ti];
 263       mc->doneyet= 0;
 264       mc->fdom= fdomlist[qi];
 265
 266       fprintf(stdout,"%s flags %d type %d",
 267               domain,qflags,types[ti]&adns_rrt_reprmask);
 268       r= adns_submit(ads,domain,types[ti],qflags,mc,&mc->qu);
 269       if (r == ENOSYS) {
 270         fprintf(stdout," not implemented\n");
 271         mc->qu= 0;
 272         mc->doneyet= 1;
 273       } else if (r) {
 274         failure_errno("submit",r);
 275       } else {
 276         ri= adns_rr_info(types[ti], &rrtn,&fmtn,0, 0,0);
 277         putc(' ',stdout);
 278         dumptype(ri,rrtn,fmtn);
 279         fprintf(stdout," submitted\n");
 280       }
 281     }
 282   }
 283
 284   for (;;) {
 285     for (qi=0; qi<qc; qi++) {
 286       for (ti=0; ti<tc; ti++) {
 287         mc= &mcs[qi*tc+ti];
 288         mc->found= 0;
 289       }
 290     }
 291     for (adns_forallqueries_begin(ads);
 292          (qu= adns_forallqueries_next(ads,&mcr));
 293          ) {
 294       mc= mcr;
 295       assert(qu == mc->qu);
 296       assert(!mc->doneyet);
 297       mc->found= 1;
 298     }
 299     mcw= 0;
 300     for (qi=0; qi<qc; qi++) {
 301       for (ti=0; ti<tc; ti++) {
 302         mc= &mcs[qi*tc+ti];
 303         if (mc->doneyet) continue;
 304         assert(mc->found);
 305         if (!mcw) mcw= mc;
 306       }
 307     }
 308     if (!mcw) break;
 309
 310     if (strchr(owninitflags,'s')) {
 311       qu= mcw->qu;
 312       mc= mcw;
 313     } else {
 314       qu= 0;
 315       mc= 0;
 316     }
 317
 318     if (strchr(owninitflags,'p')) {
 319       r= adns_wait_poll(ads,&qu,&ans,&mcr);
 320     } else {
 321       r= adns_wait(ads,&qu,&ans,&mcr);
 322     }
 323     if (r) failure_errno("wait/check",r);
 324
 325     if (mc) assert(mcr==mc);
 326     else mc= mcr;
 327     assert(qu==mc->qu);
 328     assert(!mc->doneyet);
 329
 330     fdom_split(mc->fdom,&domain,&qflags,ownflags,sizeof(ownflags));
 331
 332     if (gettimeofday(&now,0)) { perror("gettimeofday"); quitnow(3); }
 333
 334     ri= adns_rr_info(ans->type, &rrtn,&fmtn,&len, 0,0);
 335     fprintf(stdout, "%s flags %d type ",domain,qflags);
 336     dumptype(ri,rrtn,fmtn);
 337     fprintf(stdout, "%s%s: %s; nrrs=%d; cname=%s; owner=%s; ttl=%ld\n",
 338             ownflags[0] ? " ownflags=" : "", ownflags,
 339             strchr(ownflags,'a')
 340             ? adns_errabbrev(ans->status)
 341             : adns_strerror(ans->status),
 342             ans->nrrs,
 343             ans->cname ? ans->cname : "$",
 344             ans->owner ? ans->owner : "$",
 345             (long)ans->expires - (long)now.tv_sec);
 346     if (ans->nrrs) {
 347       assert(!ri);
 348       for (i=0; i<ans->nrrs; i++) {
 349         ri= adns_rr_info(ans->type, 0,0,0, ans->rrs.bytes + i*len, &show);
 350         if (ri) failure_status("info",ri);
 351         fprintf(stdout," %s\n",show);
 352         free(show);
 353       }
 354     }
 355     free(ans);
 356
 357     mc->doneyet= 1;
 358   }
 359
 360   quitnow(0);
 361 }