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