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
   6 m4_dnl    Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
   7 m4_dnl
   8 m4_dnl  It is part of adns, which is
   9 m4_dnl    Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
  10 m4_dnl    Copyright (C) 1999 Tony Finch <dot@dotat.at>
  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 2, 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 m4_dnl  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  25
  26 m4_include(hmacros.i4)
  27
  28 #include <assert.h>
  29 #include <string.h>
  30 #include <fcntl.h>
  31 #include <errno.h>
  32 #include <stdlib.h>
  33
  34 #include <sys/socket.h>
  35 #include <netinet/in.h>
  36 #include <arpa/inet.h>
  37
  38 #include "harness.h"
  39
  40 static FILE *Tinputfile, *Treportfile;
  41 static vbuf vb2;
  42
  43 extern void Tshutdown(void) {
  44   adns__vbuf_free(&vb2);
  45 }
  46
  47 static void Tensurereportfile(void) {
  48   const char *fdstr;
  49   int fd;
  50
  51   if (Treportfile) return;
  52   Treportfile= stderr;
  53   fdstr= getenv("ADNS_TEST_REPORT_FD"); if (!fdstr) return;
  54   fd= atoi(fdstr);
  55   Treportfile= fdopen(fd,"a"); if (!Treportfile) Tfailed("fdopen ADNS_TEST_REPORT_FD");
  56 }
  57
  58 static void Psyntax(const char *where) {
  59   fprintf(stderr,"adns test harness: syntax error in test log input file: %s\n",where);
  60   exit(-1);
  61 }
  62
  63 static void Pcheckinput(void) {
  64   if (ferror(Tinputfile)) Tfailed("read test log input file");
  65   if (feof(Tinputfile)) Psyntax("eof at syscall reply");
  66 }
  67
  68 static void Tensureinputfile(void) {
  69   const char *fdstr;
  70   int fd;
  71   int chars;
  72   unsigned long sec, usec;
  73
  74   if (Tinputfile) return;
  75   Tinputfile= stdin;
  76   fdstr= getenv("ADNS_TEST_IN_FD");
  77   if (fdstr) {
  78     fd= atoi(fdstr);
  79     Tinputfile= fdopen(fd,"r"); if (!Tinputfile) Tfailed("fdopen ADNS_TEST_IN_FD");
  80   }
  81
  82   if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
  83   fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
  84   chars= -1;
  85   sscanf(vb2.buf," start %lu.%lu%n",&sec,&usec,&chars);
  86   if (chars==-1) Psyntax("start time invalid");
  87   currenttime.tv_sec= sec;
  88   currenttime.tv_usec= usec;
  89   if (vb2.buf[chars] != hm_squote\nhm_squote) Psyntax("not newline after start time");
  90 }
  91
  92 static void Parg(const char *argname) {
  93   int l;
  94
  95   if (vb2.buf[vb2.used++] != hm_squote hm_squote) Psyntax("not a space before argument");
  96   l= strlen(argname);
  97   if (memcmp(vb2.buf+vb2.used,argname,l)) Psyntax("argument name wrong");
  98   vb2.used+= l;
  99   if (vb2.buf[vb2.used++] != hm_squote=hm_squote) Psyntax("not = after argument name");
 100 }
 101
 102 static int Pstring_maybe(const char *string) {
 103   int l;
 104
 105   l= strlen(string);
 106   if (memcmp(vb2.buf+vb2.used,string,l)) return 0;
 107   vb2.used+= l;
 108   return 1;
 109 }
 110
 111 static void Pstring(const char *string, const char *emsg) {
 112   if (Pstring_maybe(string)) return;
 113   Psyntax(emsg);
 114 }
 115
 116 static int Perrno(const char *stuff) {
 117   const struct Terrno *te;
 118   int r;
 119   char *ep;
 120
 121   for (te= Terrnos; te->n && strcmp(te->n,stuff); te++);
 122   if (te->n) return te->v;
 123   r= strtoul(stuff+2,&ep,10);
 124   if (*ep) Psyntax("errno value not recognised, not numeric");
 125   return r;
 126 }
 127
 128 static void P_updatetime(void) {
 129   int chars;
 130   unsigned long sec, usec;
 131
 132   if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
 133   fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
 134   chars= -1;
 135   sscanf(vb2.buf," +%lu.%lu%n",&sec,&usec,&chars);
 136   if (chars==-1) Psyntax("update time invalid");
 137   currenttime.tv_sec+= sec;
 138   currenttime.tv_usec+= usec;
 139   if (currenttime.tv_usec > 1000000) {
 140     currenttime.tv_sec++;
 141     currenttime.tv_usec -= 1000000;
 142   }
 143   if (vb2.buf[chars] != hm_squote\nhm_squote) Psyntax("not newline after update time");
 144 }
 145
 146 static void Pfdset(fd_set *set, int max) {
 147   int r, c;
 148   char *ep;
 149
 150   if (vb2.buf[vb2.used++] != hm_squote[hm_squote) Psyntax("fd set start not [");
 151   FD_ZERO(set);
 152   for (;;) {
 153     r= strtoul(vb2.buf+vb2.used,&ep,10);
 154     if (r>=max) Psyntax("fd set member > max");
 155     FD_SET(r,set);
 156     vb2.used= ep - (char*)vb2.buf;
 157     c= vb2.buf[vb2.used++];
 158     if (c == hm_squote]hm_squote) break;
 159     if (c != hm_squote,hm_squote) Psyntax("fd set separator not ,");
 160   }
 161 }
 162
 163 #ifdef HAVE_POLL
 164 static int Ppollfdevents(void) {
 165   int events;
 166
 167   if (Pstring_maybe("0")) return 0;
 168   events= 0;
 169
 170   if (Pstring_maybe("POLLIN")) {
 171     events |= POLLIN;
 172     if (!Pstring_maybe("|")) return events;
 173   }
 174
 175   if (Pstring_maybe("POLLOUT")) {
 176     events |= POLLOUT;
 177     if (!Pstring_maybe("|")) return events;
 178   }
 179
 180   Pstring("POLLPRI","pollfdevents PRI?");
 181   return events;
 182 }
 183
 184 static void Ppollfds(struct pollfd *fds, int nfds) {
 185   int i;
 186   char *ep;
 187   const char *comma= "";
 188
 189   if (vb2.buf[vb2.used++] != hm_squote[hm_squote) Psyntax("pollfds start not [");
 190   for (i=0; i<nfds; i++) {
 191     Pstring("{fd=","{fd= in pollfds");
 192     fds->fd= strtoul(vb2.buf+vb2.used,&ep,10);
 193     vb2.used= ep - (char*)vb2.buf;
 194     Pstring(", events=",", events= in pollfds");
 195     fds->events= Ppollfdevents();
 196     Pstring(", revents=",", revents= in pollfds");
 197     fds->revents= Ppollfdevents();
 198     Pstring("}","} in pollfds");
 199     Pstring(comma,"separator in pollfds");
 200     comma= ", ";
 201   }
 202   if (vb2.buf[vb2.used++] != hm_squote]hm_squote) Psyntax("pollfds end not ]");
 203 }
 204 #endif
 205
 206 static void Paddr(struct sockaddr *addr, int *lenr) {
 207   struct sockaddr_in *sa= (struct sockaddr_in*)addr;
 208   char *p, *ep;
 209   long ul;
 210
 211   assert(*lenr >= sizeof(*sa));
 212   p= strchr(vb2.buf+vb2.used,':');
 213   if (!p) Psyntax("no port on address");
 214   *p++= 0;
 215   memset(sa,0,sizeof(*sa));
 216   sa->sin_family= AF_INET;
 217   if (!inet_aton(vb2.buf+vb2.used,&sa->sin_addr)) Psyntax("invalid address");
 218   ul= strtoul(p,&ep,10);
 219   if (*ep && *ep != hm_squote hm_squote) Psyntax("invalid port (bad syntax)");
 220   if (ul >= 65536) Psyntax("port too large");
 221   sa->sin_port= htons(ul);
 222   *lenr= sizeof(*sa);
 223
 224   vb2.used= ep - (char*)vb2.buf;
 225 }
 226
 227 static int Pbytes(byte *buf, int maxlen) {
 228   static const char hexdigits[]= "0123456789abcdef";
 229
 230   int c, v, done;
 231   const char *pf;
 232
 233   done= 0;
 234   for (;;) {
 235     c= getc(Tinputfile); Pcheckinput();
 236     if (c=='\n' || c==' ' || c=='\t') continue;
 237     if (c=='.') break;
 238     pf= strchr(hexdigits,c); if (!pf) Psyntax("invalid first hex digit");
 239     v= (pf-hexdigits)<<4;
 240     c= getc(Tinputfile); Pcheckinput();
 241     pf= strchr(hexdigits,c); if (!pf) Psyntax("invalid second hex digit");
 242     v |= (pf-hexdigits);
 243     if (maxlen<=0) Psyntax("buffer overflow in bytes");
 244     *buf++= v;
 245     maxlen--; done++;
 246   }
 247   for (;;) {
 248     c= getc(Tinputfile); Pcheckinput();
 249     if (c=='\n') return done;
 250   }
 251 }
 252
 253 void Q_vb(void) {
 254   int r;
 255
 256   Tensureinputfile();
 257   if (!adns__vbuf_ensure(&vb2,vb.used+2)) Tnomem();
 258   r= fread(vb2.buf,1,vb.used+2,Tinputfile);
 259   if (feof(Tinputfile)) {
 260     fprintf(stderr,"adns test harness: input ends prematurely; program did:\n %.*s\n",
 261            vb.used,vb.buf);
 262     exit(-1);
 263   }
 264   Pcheckinput();
 265   if (vb2.buf[0] != hm_squote hm_squote) Psyntax("not space before call");
 266   if (memcmp(vb.buf,vb2.buf+1,vb.used) ||
 267       vb2.buf[vb.used+1] != hm_squote\nhm_squote) {
 268     fprintf(stderr,
 269             "adns test harness: program did unexpected:\n %.*s\n"
 270             "was expecting:\n %.*s\n",
 271             vb.used,vb.buf, vb.used,vb2.buf+1);
 272     exit(1);
 273   }
 274 }
 275
 276 m4_define(`hm_syscall', `
 277  hm_create_proto_h
 278 int H$1(hm_args_massage($3,void)) {
 279  int r, amtread;
 280  m4_define(`hm_rv_fd',`char *ep;')
 281  m4_define(`hm_rv_any',`char *ep;')
 282  m4_define(`hm_rv_len',`')
 283  m4_define(`hm_rv_must',`')
 284  m4_define(`hm_rv_succfail',`')
 285  m4_define(`hm_rv_fcntl',`')
 286  $2
 287
 288  hm_create_hqcall_vars
 289  $3
 290
 291  hm_create_hqcall_init($1)
 292  $3
 293
 294  hm_create_hqcall_args
 295  Q$1(hm_args_massage($3));
 296
 297  m4_define(`hm_r_offset',`m4_len(` $1=')')
 298  if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
 299  fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
 300
 301  Tensurereportfile();
 302  fprintf(Treportfile,"syscallr %s",vb2.buf);
 303  amtread= strlen(vb2.buf);
 304  if (amtread<=0 || vb2.buf[--amtread]!=hm_squote\nhm_squote)
 305   Psyntax("badly formed line");
 306  vb2.buf[amtread]= 0;
 307  if (memcmp(vb2.buf," $1=",hm_r_offset)) Psyntax("syscall reply mismatch");
 308
 309  if (vb2.buf[hm_r_offset] == hm_squoteEhm_squote) {
 310   int e;
 311   e= Perrno(vb2.buf+hm_r_offset);
 312   P_updatetime();
 313   errno= e;
 314   return -1;
 315  }
 316
 317  m4_define(`hm_rv_succfail',`
 318   if (memcmp(vb2.buf+hm_r_offset,"OK",2)) Psyntax("success/fail not E* or OK");
 319   vb2.used= hm_r_offset+2;
 320   r= 0;
 321  ')
 322  m4_define(`hm_rv_len',`hm_rv_succfail')
 323  m4_define(`hm_rv_must',`hm_rv_succfail')
 324  m4_define(`hm_rv_any',`
 325   r= strtoul(vb2.buf+hm_r_offset,&ep,10);
 326   if (*ep && *ep!=hm_squote hm_squote) Psyntax("return value not E* or positive number");
 327   vb2.used= ep - (char*)vb2.buf;
 328  ')
 329  m4_define(`hm_rv_fd',`hm_rv_any')
 330  m4_define(`hm_rv_fcntl',`
 331   r= 0;
 332   if (cmd == F_GETFL) {
 333     if (!memcmp(vb2.buf+hm_r_offset,"O_NONBLOCK|...",14)) {
 334       r= O_NONBLOCK;
 335       vb2.used= hm_r_offset+14;
 336     } else if (!memcmp(vb2.buf+hm_r_offset,"~O_NONBLOCK&...",15)) {
 337       vb2.used= hm_r_offset+15;
 338     } else {
 339       Psyntax("fcntl flags not O_NONBLOCK|... or ~O_NONBLOCK&...");
 340     }
 341   } else if (cmd == F_SETFL) {
 342     hm_rv_succfail
 343   } else {
 344     Psyntax("fcntl not F_GETFL or F_SETFL");
 345   }
 346  ')
 347  $2
 348
 349  hm_create_nothing
 350  m4_define(`hm_arg_fdset_io',`Parg("$'`1"); Pfdset($'`1,$'`2);')
 351  m4_define(`hm_arg_pollfds_io',`Parg("$'`1"); Ppollfds($'`1,$'`2);')
 352  m4_define(`hm_arg_addr_out',`Parg("$'`1"); Paddr($'`1,$'`2);')
 353  $3
 354  assert(vb2.used <= amtread);
 355  if (vb2.used != amtread) Psyntax("junk at end of line");
 356
 357  hm_create_nothing
 358  m4_define(`hm_arg_bytes_out',`r= Pbytes($'`2,$'`4);')
 359  $3
 360
 361  P_updatetime();
 362  return r;
 363 }
 364 ')
 365
 366 m4_include(`hsyscalls.i4')