mdw@git.distorted.org.uk Git - adns/blob - regress/hplayback.c.m4

   1 m4_dnl hplayback.c.m4
   2 m4_dnl (part of complex test harness, not of the library)
   3 m4_dnl - playback routines
   4
   5 m4_dnl  This file is part of adns, which is
   6 m4_dnl    Copyright (C) 1997-2000,2003,2006,2014  Ian Jackson
   7 m4_dnl    Copyright (C) 1999-2000,2003,2006  Tony Finch
   8 m4_dnl    Copyright (C) 1991 Massachusetts Institute of Technology
   9 m4_dnl  (See the file INSTALL for full details.)
  10 m4_dnl
  11 m4_dnl  This program is free software; you can redistribute it and/or modify
  12 m4_dnl  it under the terms of the GNU General Public License as published by
  13 m4_dnl  the Free Software Foundation; either version 3, or (at your option)
  14 m4_dnl  any later version.
  15 m4_dnl
  16 m4_dnl  This program is distributed in the hope that it will be useful,
  17 m4_dnl  but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 m4_dnl  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 m4_dnl  GNU General Public License for more details.
  20 m4_dnl
  21 m4_dnl  You should have received a copy of the GNU General Public License
  22 m4_dnl  along with this program; if not, write to the Free Software Foundation.
  23
  24 m4_include(hmacros.i4)
  25
  26 #include <assert.h>
  27 #include <string.h>
  28 #include <errno.h>
  29 #include <stdlib.h>
  30
  31 #include <sys/types.h>
  32 #include <sys/socket.h>
  33 #include <netinet/in.h>
  34 #include <arpa/inet.h>
  35 #include <sys/time.h>
  36
  37 #include <unistd.h>
  38 #include <fcntl.h>
  39
  40 #include "harness.h"
  41
  42 static FILE *Tinputfile, *Treportfile;
  43 static vbuf vb2;
  44
  45 extern void Tshutdown(void) {
  46   adns__vbuf_free(&vb2);
  47 }
  48
  49 static void Tensurereportfile(void) {
  50   const char *fdstr;
  51   int fd;
  52
  53   if (Treportfile) return;
  54   Treportfile= stderr;
  55   fdstr= getenv("ADNS_TEST_REPORT_FD"); if (!fdstr) return;
  56   fd= atoi(fdstr);
  57   Treportfile= fdopen(fd,"a"); if (!Treportfile) Tfailed("fdopen ADNS_TEST_REPORT_FD");
  58 }
  59
  60 static void Psyntax(const char *where) {
  61   fprintf(stderr,"adns test harness: syntax error in test log input file: %s\n",where);
  62   exit(-1);
  63 }
  64
  65 static void Pcheckinput(void) {
  66   if (ferror(Tinputfile)) Tfailed("read test log input file");
  67   if (feof(Tinputfile)) Psyntax("eof at syscall reply");
  68 }
  69
  70 void Tensurerecordfile(void) {
  71   const char *fdstr;
  72   int fd;
  73   int chars;
  74   unsigned long sec, usec;
  75
  76   if (Tinputfile) return;
  77   Tinputfile= stdin;
  78   fdstr= getenv("ADNS_TEST_IN_FD");
  79   if (fdstr) {
  80     fd= atoi(fdstr);
  81     Tinputfile= fdopen(fd,"r"); if (!Tinputfile) Tfailed("fdopen ADNS_TEST_IN_FD");
  82   }
  83   setvbuf(Tinputfile,0,_IONBF,0);
  84
  85   if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
  86   fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
  87   chars= -1;
  88   sscanf(vb2.buf," start %lu.%lu%n",&sec,&usec,&chars);
  89   if (chars==-1) Psyntax("start time invalid");
  90   currenttime.tv_sec= sec;
  91   currenttime.tv_usec= usec;
  92   if (vb2.buf[chars] != hm_squote\nhm_squote) Psyntax("not newline after start time");
  93 }
  94
  95 static void Parg(const char *argname) {
  96   int l;
  97
  98   if (vb2.buf[vb2.used++] != hm_squote hm_squote) Psyntax("not a space before argument");
  99   l= strlen(argname);
 100   if (memcmp(vb2.buf+vb2.used,argname,l)) Psyntax("argument name wrong");
 101   vb2.used+= l;
 102   if (vb2.buf[vb2.used++] != hm_squote=hm_squote) Psyntax("not = after argument name");
 103 }
 104
 105 static int Pstring_maybe(const char *string) {
 106   int l;
 107
 108   l= strlen(string);
 109   if (memcmp(vb2.buf+vb2.used,string,l)) return 0;
 110   vb2.used+= l;
 111   return 1;
 112 }
 113
 114 static void Pstring(const char *string, const char *emsg) {
 115   if (Pstring_maybe(string)) return;
 116   Psyntax(emsg);
 117 }
 118
 119 static int Perrno(const char *stuff) {
 120   const struct Terrno *te;
 121   int r;
 122   char *ep;
 123
 124   for (te= Terrnos; te->n && strcmp(te->n,stuff); te++);
 125   if (te->n) return te->v;
 126   r= strtoul(stuff+2,&ep,10);
 127   if (*ep) Psyntax("errno value not recognised, not numeric");
 128   return r;
 129 }
 130
 131 static void P_updatetime(void) {
 132   int chars;
 133   unsigned long sec, usec;
 134
 135   if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
 136   fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
 137   chars= -1;
 138   sscanf(vb2.buf," +%lu.%lu%n",&sec,&usec,&chars);
 139   if (chars==-1) Psyntax("update time invalid");
 140   currenttime.tv_sec+= sec;
 141   currenttime.tv_usec+= usec;
 142   if (currenttime.tv_usec > 1000000) {
 143     currenttime.tv_sec++;
 144     currenttime.tv_usec -= 1000000;
 145   }
 146   if (vb2.buf[chars] != hm_squote\nhm_squote) Psyntax("not newline after update time");
 147 }
 148
 149 static void Pfdset(fd_set *set, int max) {
 150   int r, c;
 151   char *ep;
 152
 153   if (vb2.buf[vb2.used++] != hm_squote[hm_squote) Psyntax("fd set start not [");
 154   FD_ZERO(set);
 155   if (vb2.buf[vb2.used] == hm_squote]hm_squote) { vb2.used++; return; }
 156   for (;;) {
 157     r= strtoul(vb2.buf+vb2.used,&ep,10);
 158     if (r>=max) Psyntax("fd set member > max");
 159     if (ep == (char*)vb2.buf+vb2.used) Psyntax("empty entry in fd set");
 160     FD_SET(r,set);
 161     vb2.used= ep - (char*)vb2.buf;
 162     c= vb2.buf[vb2.used++];
 163     if (c == hm_squote]hm_squote) break;
 164     if (c != hm_squote,hm_squote) Psyntax("fd set separator not ,");
 165   }
 166 }
 167
 168 #ifdef HAVE_POLL
 169 static int Ppollfdevents(void) {
 170   int events;
 171
 172   if (Pstring_maybe("0")) return 0;
 173   events= 0;
 174
 175   if (Pstring_maybe("POLLIN")) {
 176     events |= POLLIN;
 177     if (!Pstring_maybe("|")) return events;
 178   }
 179
 180   if (Pstring_maybe("POLLOUT")) {
 181     events |= POLLOUT;
 182     if (!Pstring_maybe("|")) return events;
 183   }
 184
 185   Pstring("POLLPRI","pollfdevents PRI?");
 186   return events;
 187 }
 188
 189 static void Ppollfds(struct pollfd *fds, int nfds) {
 190   int i;
 191   char *ep;
 192   const char *comma= "";
 193
 194   if (vb2.buf[vb2.used++] != hm_squote[hm_squote) Psyntax("pollfds start not [");
 195   for (i=0; i<nfds; i++) {
 196     Pstring("{fd=","{fd= in pollfds");
 197     fds->fd= strtoul(vb2.buf+vb2.used,&ep,10);
 198     vb2.used= ep - (char*)vb2.buf;
 199     Pstring(", events=",", events= in pollfds");
 200     fds->events= Ppollfdevents();
 201     Pstring(", revents=",", revents= in pollfds");
 202     fds->revents= Ppollfdevents();
 203     Pstring("}","} in pollfds");
 204     Pstring(comma,"separator in pollfds");
 205     comma= ", ";
 206   }
 207   if (vb2.buf[vb2.used++] != hm_squote]hm_squote) Psyntax("pollfds end not ]");
 208 }
 209 #endif
 210
 211 static void Paddr(struct sockaddr *addr, int *lenr) {
 212   adns_rr_addr a;
 213   char *p, *q, *ep;
 214   int err;
 215   unsigned long ul;
 216
 217   p= vb2.buf+vb2.used;
 218   if (*p!='[') {
 219     q= strchr(p,':');
 220     if (!q) Psyntax("missing :");
 221     *q++= 0;
 222   } else {
 223     p++;
 224     q= strchr(p,']');
 225     if (!q) Psyntax("missing ]");
 226     *q++= 0;
 227     if (*q!=':') Psyntax("expected : after ]");
 228     q++;
 229   }
 230   ul= strtoul(q,&ep,10);
 231   if (*ep && *ep != ' ') Psyntax("invalid port (bad syntax)");
 232   if (ul >= 65536) Psyntax("port too large");
 233
 234   a.len= sizeof(a.addr);
 235   err= adns_text2addr(p, (int)ul, 0, &a.addr.sa,&a.len);
 236   if (err) Psyntax("invalid address");
 237
 238   assert(*lenr >= a.len);
 239   memcpy(addr, &a.addr, a.len);
 240   *lenr= a.len;
 241   vb2.used= ep - (char*)vb2.buf;
 242 }
 243
 244 static int Pbytes(byte *buf, int maxlen) {
 245   static const char hexdigits[]= "0123456789abcdef";
 246
 247   int c, v, done;
 248   const char *pf;
 249
 250   done= 0;
 251   for (;;) {
 252     c= getc(Tinputfile); Pcheckinput();
 253     if (c=='\n' || c==' ' || c=='\t') continue;
 254     if (c=='.') break;
 255     pf= strchr(hexdigits,c); if (!pf) Psyntax("invalid first hex digit");
 256     v= (pf-hexdigits)<<4;
 257     c= getc(Tinputfile); Pcheckinput();
 258     pf= strchr(hexdigits,c); if (!pf) Psyntax("invalid second hex digit");
 259     v |= (pf-hexdigits);
 260     if (maxlen<=0) Psyntax("buffer overflow in bytes");
 261     *buf++= v;
 262     maxlen--; done++;
 263   }
 264   for (;;) {
 265     c= getc(Tinputfile); Pcheckinput();
 266     if (c=='\n') return done;
 267   }
 268 }
 269
 270 void Q_vb(void) {
 271   const char *nl;
 272
 273   Tensurerecordfile();
 274   if (!adns__vbuf_ensure(&vb2,vb.used+2)) Tnomem();
 275   fread(vb2.buf,1,vb.used+2,Tinputfile);
 276   if (feof(Tinputfile)) {
 277     fprintf(stderr,"adns test harness: input ends prematurely; program did:\n %.*s\n",
 278            vb.used,vb.buf);
 279     exit(-1);
 280   }
 281   Pcheckinput();
 282   if (vb2.buf[0] != hm_squote hm_squote) Psyntax("not space before call");
 283   if (memcmp(vb.buf,vb2.buf+1,vb.used) ||
 284       vb2.buf[vb.used+1] != hm_squote\nhm_squote) {
 285     fprintf(stderr,
 286             "adns test harness: program did unexpected:\n %.*s\n"
 287             "was expecting:\n %.*s\n",
 288             vb.used,vb.buf, vb.used,vb2.buf+1);
 289     exit(1);
 290   }
 291   Tensurereportfile();
 292   nl= memchr(vb.buf,'\n',vb.used);
 293   fprintf(Treportfile," %.*s\n", (int)(nl ? nl - (const char*)vb.buf : vb.used), vb.buf);
 294 }
 295
 296 m4_define(`hm_syscall', `
 297  hm_create_proto_h
 298 int H$1(hm_args_massage($3,void)) {
 299  int r, amtread;
 300  m4_define(`hm_rv_fd',`char *ep;')
 301  m4_define(`hm_rv_any',`char *ep;')
 302  m4_define(`hm_rv_len',`')
 303  m4_define(`hm_rv_must',`')
 304  m4_define(`hm_rv_succfail',`')
 305  m4_define(`hm_rv_fcntl',`')
 306  $2
 307
 308  hm_create_hqcall_vars
 309  $3
 310
 311  hm_create_hqcall_init($1)
 312  $3
 313
 314  hm_create_hqcall_args
 315  Q$1(hm_args_massage($3));
 316
 317  m4_define(`hm_r_offset',`m4_len(` $1=')')
 318  if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
 319  fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
 320
 321  Tensurereportfile();
 322  fprintf(Treportfile,"%s",vb2.buf);
 323  amtread= strlen(vb2.buf);
 324  if (amtread<=0 || vb2.buf[--amtread]!=hm_squote\nhm_squote)
 325   Psyntax("badly formed line");
 326  vb2.buf[amtread]= 0;
 327  if (memcmp(vb2.buf," $1=",hm_r_offset)) Psyntax("syscall reply mismatch");
 328
 329  if (vb2.buf[hm_r_offset] == hm_squoteEhm_squote) {
 330   int e;
 331   e= Perrno(vb2.buf+hm_r_offset);
 332   P_updatetime();
 333   errno= e;
 334   return -1;
 335  }
 336
 337  m4_define(`hm_rv_succfail',`
 338   if (memcmp(vb2.buf+hm_r_offset,"OK",2)) Psyntax("success/fail not E* or OK");
 339   vb2.used= hm_r_offset+2;
 340   r= 0;
 341  ')
 342  m4_define(`hm_rv_len',`hm_rv_succfail')
 343  m4_define(`hm_rv_must',`hm_rv_succfail')
 344  m4_define(`hm_rv_any',`
 345   r= strtoul(vb2.buf+hm_r_offset,&ep,10);
 346   if (*ep && *ep!=hm_squote hm_squote) Psyntax("return value not E* or positive number");
 347   vb2.used= ep - (char*)vb2.buf;
 348  ')
 349  m4_define(`hm_rv_fd',`hm_rv_any')
 350  m4_define(`hm_rv_fcntl',`
 351   r= 0;
 352   if (cmd == F_GETFL) {
 353     if (!memcmp(vb2.buf+hm_r_offset,"O_NONBLOCK|...",14)) {
 354       r= O_NONBLOCK;
 355       vb2.used= hm_r_offset+14;
 356     } else if (!memcmp(vb2.buf+hm_r_offset,"~O_NONBLOCK&...",15)) {
 357       vb2.used= hm_r_offset+15;
 358     } else {
 359       Psyntax("fcntl flags not O_NONBLOCK|... or ~O_NONBLOCK&...");
 360     }
 361   } else if (cmd == F_SETFL) {
 362     hm_rv_succfail
 363   } else {
 364     Psyntax("fcntl not F_GETFL or F_SETFL");
 365   }
 366  ')
 367  $2
 368
 369  hm_create_nothing
 370  m4_define(`hm_arg_fdset_io',`Parg("$'`1"); Pfdset($'`1,$'`2);')
 371  m4_define(`hm_arg_pollfds_io',`Parg("$'`1"); Ppollfds($'`1,$'`2);')
 372  m4_define(`hm_arg_addr_out',`Parg("$'`1"); Paddr($'`1,$'`2);')
 373  $3
 374  assert(vb2.used <= amtread);
 375  if (vb2.used != amtread) Psyntax("junk at end of line");
 376
 377  hm_create_nothing
 378  m4_define(`hm_arg_bytes_out',`r= Pbytes($'`2,$'`4);')
 379  $3
 380
 381  P_updatetime();
 382  return r;
 383 }
 384 ')
 385
 386 m4_define(`hm_specsyscall', `')
 387
 388 m4_include(`hsyscalls.i4')