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 Copyright (C) 1997-1999 Ian Jackson
   6 m4_dnl
   7 m4_dnl  This program is free software; you can redistribute it and/or modify
   8 m4_dnl  it under the terms of the GNU General Public License as published by
   9 m4_dnl  the Free Software Foundation; either version 2, or (at your option)
  10 m4_dnl  any later version.
  11 m4_dnl
  12 m4_dnl  This program is distributed in the hope that it will be useful,
  13 m4_dnl  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 m4_dnl  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 m4_dnl  GNU General Public License for more details.
  16 m4_dnl
  17 m4_dnl  You should have received a copy of the GNU General Public License
  18 m4_dnl  along with this program; if not, write to the Free Software Foundation,
  19 m4_dnl  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  20
  21 m4_include(hmacros.i4)
  22
  23 #include <assert.h>
  24 #include <string.h>
  25 #include <fcntl.h>
  26 #include <errno.h>
  27 #include <stdlib.h>
  28
  29 #include <sys/socket.h>
  30 #include <netinet/in.h>
  31 #include <arpa/inet.h>
  32
  33 #include "harness.h"
  34
  35 static FILE *Tinputfile, *Treportfile;
  36 static vbuf vb2;
  37
  38 static void Tensurereportfile(void) {
  39   const char *fdstr;
  40   int fd;
  41
  42   Treportfile= stderr;
  43   fdstr= getenv("ADNS_TEST_REPORT_FD"); if (!fdstr) return;
  44   fd= atoi(fdstr);
  45   Treportfile= fdopen(fd,"a"); if (!Treportfile) Tfailed("fdopen ADNS_TEST_REPORT_FD");
  46 }
  47
  48 static void Psyntax(const char *where) {
  49   fprintf(stderr,"adns test harness: syntax error in test log input file: %s\n",where);
  50   exit(-1);
  51 }
  52
  53 static void Pcheckinput(void) {
  54   if (ferror(Tinputfile)) Tfailed("read test log input file");
  55   if (feof(Tinputfile)) Psyntax("eof at syscall reply");
  56 }
  57
  58 static void Tensureinputfile(void) {
  59   const char *fdstr;
  60   int fd;
  61   int chars;
  62   unsigned long sec, usec;
  63
  64   if (Tinputfile) return;
  65   Tinputfile= stdin;
  66   fdstr= getenv("ADNS_TEST_IN_FD");
  67   if (fdstr) {
  68     fd= atoi(fdstr);
  69     Tinputfile= fdopen(fd,"r"); if (!Tinputfile) Tfailed("fdopen ADNS_TEST_IN_FD");
  70   }
  71
  72   if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
  73   fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
  74   chars= -1;
  75   sscanf(vb2.buf," start %lu.%lu%n",&sec,&usec,&chars);
  76   if (chars==-1) Psyntax("start time invalid");
  77   currenttime.tv_sec= sec;
  78   currenttime.tv_usec= usec;
  79   if (vb2.buf[chars] != hm_squote\nhm_squote) Psyntax("not newline after start time");
  80 }
  81
  82 static void Parg(const char *argname) {
  83   int l;
  84
  85   if (vb2.buf[vb2.used++] != hm_squote hm_squote) Psyntax("not a space before argument");
  86   l= strlen(argname);
  87   if (memcmp(vb2.buf+vb2.used,argname,l)) Psyntax("argument name wrong");
  88   vb2.used+= l;
  89   if (vb2.buf[vb2.used++] != hm_squote=hm_squote) Psyntax("not = after argument name");
  90 }
  91
  92 static int Pstring_maybe(const char *string) {
  93   int l;
  94
  95   l= strlen(string);
  96   if (memcmp(vb2.buf+vb2.used,string,l)) return 0;
  97   vb2.used+= l;
  98   return 1;
  99 }
 100
 101 static void Pstring(const char *string, const char *emsg) {
 102   if (Pstring_maybe(string)) return;
 103   Psyntax(emsg);
 104 }
 105
 106 static int Perrno(const char *stuff) {
 107   const struct Terrno *te;
 108   int r;
 109   char *ep;
 110
 111   for (te= Terrnos; te->n && strcmp(te->n,stuff); te++);
 112   if (te->n) return te->v;
 113   r= strtoul(stuff+1,&ep,10);
 114   if (ep) Psyntax("errno value not recognised, not numeric");
 115   return r;
 116 }
 117
 118 static void P_updatetime(void) {
 119   int chars;
 120   unsigned long sec, usec;
 121
 122   if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
 123   fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
 124   chars= -1;
 125   sscanf(vb2.buf," +%lu.%lu%n",&sec,&usec,&chars);
 126   if (chars==-1) Psyntax("update time invalid");
 127   currenttime.tv_sec+= sec;
 128   currenttime.tv_usec+= usec;
 129   if (currenttime.tv_usec > 1000000) {
 130     currenttime.tv_sec++;
 131     currenttime.tv_usec -= 1000000;
 132   }
 133   if (vb2.buf[chars] != hm_squote\nhm_squote) Psyntax("not newline after update time");
 134 }
 135
 136 static void Pfdset(fd_set *set, int max) {
 137   int r, c;
 138   char *ep;
 139
 140   if (vb2.buf[vb2.used++] != hm_squote[hm_squote) Psyntax("fd set start not [");
 141   FD_ZERO(set);
 142   for (;;) {
 143     r= strtoul(vb2.buf+vb2.used,&ep,10);
 144     if (r>=max) Psyntax("fd set member > max");
 145     FD_SET(r,set);
 146     vb2.used= ep - (char*)vb2.buf;
 147     c= vb2.buf[vb2.used++];
 148     if (c == hm_squote]hm_squote) break;
 149     if (c != hm_squote,hm_squote) Psyntax("fd set separator not ,");
 150   }
 151 }
 152
 153 #ifdef HAVE_POLL
 154 static int Ppollfdevents(void) {
 155   int events;
 156
 157   if (Pstring_maybe("0")) return 0;
 158   events= 0;
 159
 160   if (Pstring_maybe("POLLIN")) {
 161     events |= POLLIN;
 162     if (!Pstring_maybe("|")) return events;
 163   }
 164
 165   if (Pstring_maybe("POLLOUT")) {
 166     events |= POLLOUT;
 167     if (!Pstring_maybe("|")) return events;
 168   }
 169
 170   Pstring("POLLPRI","pollfdevents PRI?");
 171   return events;
 172 }
 173
 174 static void Ppollfds(struct pollfd *fds, int nfds) {
 175   int i;
 176   char *ep;
 177   const char *comma= "";
 178
 179   if (vb2.buf[vb2.used++] != hm_squote[hm_squote) Psyntax("pollfds start not [");
 180   for (i=0; i<nfds; i++) {
 181     Pstring("{fd=","{fd= in pollfds");
 182     fds->fd= strtoul(vb2.buf+vb2.used,&ep,10);
 183     vb2.used= ep - (char*)vb2.buf;
 184     Pstring(", events=",", events= in pollfds");
 185     fds->events= Ppollfdevents();
 186     Pstring(", revents=",", revents= in pollfds");
 187     fds->revents= Ppollfdevents();
 188     Pstring("}","} in pollfds");
 189     Pstring(comma,"separator in pollfds");
 190     comma= ", ";
 191   }
 192   if (vb2.buf[vb2.used++] != hm_squote]hm_squote) Psyntax("pollfds end not ]");
 193 }
 194 #endif
 195
 196 static void Paddr(struct sockaddr *addr, int *lenr) {
 197   struct sockaddr_in *sa= (struct sockaddr_in*)addr;
 198   char *p, *ep;
 199   long ul;
 200
 201   assert(*lenr >= sizeof(*sa));
 202   p= strchr(vb2.buf+vb2.used,':');
 203   if (!p) Psyntax("no port on address");
 204   *p++= 0;
 205   memset(sa,0,sizeof(*sa));
 206   sa->sin_family= AF_INET;
 207   if (!inet_aton(vb2.buf+vb2.used,&sa->sin_addr)) Psyntax("invalid address");
 208   ul= strtoul(p,&ep,10);
 209   if (*ep && *ep != hm_squote hm_squote) Psyntax("invalid port (bad syntax)");
 210   if (ul >= 65536) Psyntax("port too large");
 211   sa->sin_port= htons(ul);
 212   *lenr= sizeof(*sa);
 213
 214   vb2.used= ep - (char*)vb2.buf;
 215 }
 216
 217 static int Pbytes(byte *buf, int maxlen) {
 218   static const char hexdigits[]= "0123456789abcdef";
 219
 220   int c, v, done;
 221   const char *pf;
 222
 223   done= 0;
 224   for (;;) {
 225     c= getc(Tinputfile); Pcheckinput();
 226     if (c=='\n' || c==' ' || c=='\t') continue;
 227     if (c=='.') break;
 228     pf= strchr(hexdigits,c); if (!pf) Psyntax("invalid first hex digit");
 229     v= (pf-hexdigits)<<4;
 230     c= getc(Tinputfile); Pcheckinput();
 231     pf= strchr(hexdigits,c); if (!pf) Psyntax("invalid second hex digit");
 232     v |= (pf-hexdigits);
 233     if (maxlen<=0) Psyntax("buffer overflow in bytes");
 234     *buf++= v;
 235     maxlen--; done++;
 236   }
 237   for (;;) {
 238     c= getc(Tinputfile); Pcheckinput();
 239     if (c=='\n') return done;
 240   }
 241 }
 242
 243 void Q_vb(void) {
 244   int r;
 245
 246   Tensureinputfile();
 247   if (!adns__vbuf_ensure(&vb2,vb.used+2)) Tnomem();
 248   r= fread(vb2.buf,1,vb.used+2,Tinputfile);
 249   if (feof(Tinputfile)) {
 250     fprintf(stderr,"adns test harness: input ends prematurely; program did:\n %.*s\n",
 251            vb.used,vb.buf);
 252     exit(-1);
 253   }
 254   Pcheckinput();
 255   if (vb2.buf[0] != hm_squote hm_squote) Psyntax("not space before call");
 256   if (memcmp(vb.buf,vb2.buf+1,vb.used) ||
 257       vb2.buf[vb.used+1] != hm_squote\nhm_squote) {
 258     fprintf(stderr,
 259             "adns test harness: program did unexpected:\n %.*s\n"
 260             "was expecting:\n %.*s\n",
 261             vb.used,vb.buf, vb.used,vb2.buf+1);
 262     exit(1);
 263   }
 264 }
 265
 266 m4_define(`hm_syscall', `
 267  hm_create_proto_h
 268 int H$1(hm_args_massage($3,void)) {
 269  int r;
 270  m4_define(`hm_rv_fd',`char *ep;')
 271  m4_define(`hm_rv_any',`char *ep;')
 272  m4_define(`hm_rv_len',`')
 273  m4_define(`hm_rv_must',`')
 274  m4_define(`hm_rv_succfail',`')
 275  m4_define(`hm_rv_fcntl',`')
 276  $2
 277
 278  hm_create_hqcall_vars
 279  $3
 280
 281  hm_create_hqcall_init($1)
 282  $3
 283
 284  hm_create_hqcall_args
 285  Q$1(hm_args_massage($3));
 286
 287  m4_define(`hm_r_offset',`m4_len(` $1=')')
 288  if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
 289  fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
 290
 291  Tensurereportfile();
 292  fprintf(Treportfile,"syscallr %s",vb2.buf);
 293  vb2.avail= strlen(vb2.buf);
 294  if (vb.avail<=0 || vb2.buf[--vb2.avail]!=hm_squote\nhm_squote)
 295   Psyntax("badly formed line");
 296  vb2.buf[vb2.avail]= 0;
 297  if (memcmp(vb2.buf," $1=",hm_r_offset)) Psyntax("syscall reply mismatch");
 298
 299  if (vb2.buf[hm_r_offset] == hm_squoteEhm_squote) {
 300   int e;
 301   e= Perrno(vb2.buf+hm_r_offset);
 302   P_updatetime();
 303   errno= e;
 304   return -1;
 305  }
 306
 307  m4_define(`hm_rv_succfail',`
 308   if (memcmp(vb2.buf+hm_r_offset,"OK",2)) Psyntax("success/fail not E* or OK");
 309   vb2.used= hm_r_offset+2;
 310   r= 0;
 311  ')
 312  m4_define(`hm_rv_len',`hm_rv_succfail')
 313  m4_define(`hm_rv_must',`hm_rv_succfail')
 314  m4_define(`hm_rv_any',`
 315   r= strtoul(vb2.buf+hm_r_offset,&ep,10);
 316   if (*ep && *ep!=hm_squote hm_squote) Psyntax("return value not E* or positive number");
 317   vb2.used= ep - (char*)vb2.buf;
 318  ')
 319  m4_define(`hm_rv_fd',`hm_rv_any')
 320  m4_define(`hm_rv_fcntl',`
 321   r= 0;
 322   if (cmd == F_GETFL) {
 323     if (!memcmp(vb2.buf+hm_r_offset,"O_NONBLOCK|...",14)) {
 324       r= O_NONBLOCK;
 325       vb2.used= hm_r_offset+14;
 326     } else if (!memcmp(vb2.buf+hm_r_offset,"~O_NONBLOCK&...",15)) {
 327       vb2.used= hm_r_offset+15;
 328     } else {
 329       Psyntax("fcntl flags not O_NONBLOCK|... or ~O_NONBLOCK&...");
 330     }
 331   } else if (cmd == F_SETFL) {
 332     hm_rv_succfail
 333   } else {
 334     Psyntax("fcntl not F_GETFL or F_SETFL");
 335   }
 336  ')
 337  $2
 338
 339  hm_create_nothing
 340  m4_define(`hm_arg_fdset_io',`Parg("$'`1"); Pfdset($'`1,$'`2);')
 341  m4_define(`hm_arg_pollfds_io',`Parg("$'`1"); Ppollfds($'`1,$'`2);')
 342  m4_define(`hm_arg_addr_out',`Parg("$'`1"); Paddr($'`1,$'`2);')
 343  $3
 344  if (vb2.used != vb2.avail) Psyntax("junk at end of line");
 345
 346  hm_create_nothing
 347  m4_define(`hm_arg_bytes_out',`r= Pbytes($'`2,$'`4);')
 348  $3
 349
 350  P_updatetime();
 351  return r;
 352 }
 353 ')
 354
 355 m4_include(`hsyscalls.i4')