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 Perrno(const char *stuff) {
  93   const struct Terrno *te;
  94   int r;
  95   char *ep;
  96
  97   for (te= Terrnos; te->n && strcmp(te->n,stuff); te++);
  98   if (te->n) return te->v;
  99   r= strtoul(stuff+1,&ep,10);
 100   if (ep) Psyntax("errno value not recognised, not numeric");
 101   return r;
 102 }
 103
 104 static void P_updatetime(void) {
 105   int chars;
 106   unsigned long sec, usec;
 107
 108   if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
 109   fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
 110   chars= -1;
 111   sscanf(vb2.buf," +%lu.%lu%n",&sec,&usec,&chars);
 112   if (chars==-1) Psyntax("update time invalid");
 113   currenttime.tv_sec+= sec;
 114   currenttime.tv_usec+= usec;
 115   if (currenttime.tv_usec > 1000000) {
 116     currenttime.tv_sec++;
 117     currenttime.tv_usec -= 1000000;
 118   }
 119   if (vb2.buf[chars] != hm_squote\nhm_squote) Psyntax("not newline after update time");
 120 }
 121
 122 static void Pfdset(fd_set *set, int max) {
 123   int r, c;
 124   char *ep;
 125
 126   if (vb2.buf[vb2.used++] != hm_squote[hm_squote) Psyntax("fd set start not [");
 127   FD_ZERO(set);
 128   for (;;) {
 129     r= strtoul(vb2.buf+vb2.used,&ep,10);
 130     if (r>=max) Psyntax("fd set member > max");
 131     FD_SET(r,set);
 132     vb2.used= ep - (char*)vb2.buf;
 133     c= vb2.buf[vb2.used++];
 134     if (c == hm_squote]hm_squote) break;
 135     if (c != hm_squote,hm_squote) Psyntax("fd set separator not ,");
 136   }
 137 }
 138
 139 static void Paddr(struct sockaddr *addr, int *lenr) {
 140   struct sockaddr_in *sa= (struct sockaddr_in*)addr;
 141   char *p, *ep;
 142   long ul;
 143
 144   assert(*lenr >= sizeof(*sa));
 145   p= strchr(vb2.buf+vb2.used,':');
 146   if (!p) Psyntax("no port on address");
 147   *p++= 0;
 148   memset(sa,0,sizeof(*sa));
 149   sa->sin_family= AF_INET;
 150   if (!inet_aton(vb2.buf+vb2.used,&sa->sin_addr)) Psyntax("invalid address");
 151   ul= strtoul(p,&ep,10);
 152   if (*ep && *ep != hm_squote hm_squote) Psyntax("invalid port (bad syntax)");
 153   if (ul >= 65536) Psyntax("port too large");
 154   sa->sin_port= htons(ul);
 155   *lenr= sizeof(*sa);
 156
 157   vb2.used= ep - (char*)vb2.buf;
 158 }
 159
 160 static int Pbytes(byte *buf, int maxlen) {
 161   static const char hexdigits[]= "0123456789abcdef";
 162
 163   int c, v, done;
 164   const char *pf;
 165
 166   done= 0;
 167   for (;;) {
 168     c= getc(Tinputfile); Pcheckinput();
 169     if (c=='\n' || c==' ' || c=='\t') continue;
 170     if (c=='.') break;
 171     pf= strchr(hexdigits,c); if (!pf) Psyntax("invalid first hex digit");
 172     v= (pf-hexdigits)<<4;
 173     c= getc(Tinputfile); Pcheckinput();
 174     pf= strchr(hexdigits,c); if (!pf) Psyntax("invalid second hex digit");
 175     v |= (pf-hexdigits);
 176     if (maxlen<=0) Psyntax("buffer overflow in bytes");
 177     *buf++= v;
 178     maxlen--; done++;
 179   }
 180   for (;;) {
 181     c= getc(Tinputfile); Pcheckinput();
 182     if (c=='\n') return done;
 183   }
 184 }
 185
 186 void Q_vb(void) {
 187   int r;
 188
 189   Tensureinputfile();
 190   if (!adns__vbuf_ensure(&vb2,vb.used+2)) Tnomem();
 191   r= fread(vb2.buf,1,vb.used+2,Tinputfile);
 192   if (feof(Tinputfile)) {
 193     fprintf(stderr,"adns test harness: input ends prematurely; program did:\n %.*s\n",
 194            vb.used,vb.buf);
 195     exit(-1);
 196   }
 197   Pcheckinput();
 198   if (vb2.buf[0] != hm_squote hm_squote) Psyntax("not space before call");
 199   if (memcmp(vb.buf,vb2.buf+1,vb.used) ||
 200       vb2.buf[vb.used+1] != hm_squote\nhm_squote) {
 201     fprintf(stderr,
 202             "adns test harness: program did unexpected:\n %.*s\n"
 203             "was expecting:\n %.*s\n",
 204             vb.used,vb.buf, vb.used,vb2.buf+1);
 205     exit(1);
 206   }
 207 }
 208
 209 m4_define(`hm_syscall', `
 210  hm_create_proto_h
 211 int H$1(hm_args_massage($3,void)) {
 212  int r;
 213  m4_define(`hm_rv_fd',`char *ep;')
 214  m4_define(`hm_rv_any',`char *ep;')
 215  m4_define(`hm_rv_len',`')
 216  m4_define(`hm_rv_must',`')
 217  m4_define(`hm_rv_succfail',`')
 218  m4_define(`hm_rv_fcntl',`')
 219  $2
 220
 221  hm_create_hqcall_vars
 222  $3
 223
 224  hm_create_hqcall_init($1)
 225  $3
 226
 227  hm_create_hqcall_args
 228  Q$1(hm_args_massage($3));
 229
 230  m4_define(`hm_r_offset',`m4_len(` $1=')')
 231  if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
 232  fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
 233
 234  Tensurereportfile();
 235  fprintf(Treportfile,"syscallr %s",vb2.buf);
 236  vb2.avail= strlen(vb2.buf);
 237  if (vb.avail<=0 || vb2.buf[--vb2.avail]!=hm_squote\nhm_squote)
 238   Psyntax("badly formed line");
 239  vb2.buf[vb2.avail]= 0;
 240  if (memcmp(vb2.buf," $1=",hm_r_offset)) Psyntax("syscall reply mismatch");
 241
 242  if (vb2.buf[hm_r_offset] == hm_squoteEhm_squote) {
 243   int e;
 244   e= Perrno(vb2.buf+hm_r_offset);
 245   P_updatetime();
 246   errno= e;
 247   return -1;
 248  }
 249
 250  m4_define(`hm_rv_succfail',`
 251   if (memcmp(vb2.buf+hm_r_offset,"OK",2)) Psyntax("success/fail not E* or OK");
 252   vb2.used= hm_r_offset+2;
 253   r= 0;
 254  ')
 255  m4_define(`hm_rv_len',`hm_rv_succfail')
 256  m4_define(`hm_rv_must',`hm_rv_succfail')
 257  m4_define(`hm_rv_any',`
 258   r= strtoul(vb2.buf+hm_r_offset,&ep,10);
 259   if (*ep && *ep!=hm_squote hm_squote) Psyntax("return value not E* or positive number");
 260   vb2.used= ep - (char*)vb2.buf;
 261  ')
 262  m4_define(`hm_rv_fd',`hm_rv_any')
 263  m4_define(`hm_rv_fcntl',`
 264   r= 0;
 265   if (cmd == F_GETFL) {
 266     if (!memcmp(vb2.buf+hm_r_offset,"O_NONBLOCK|...",14)) {
 267       r= O_NONBLOCK;
 268       vb2.used= hm_r_offset+14;
 269     } else if (!memcmp(vb2.buf+hm_r_offset,"~O_NONBLOCK&...",15)) {
 270       vb2.used= hm_r_offset+15;
 271     } else {
 272       Psyntax("fcntl flags not O_NONBLOCK|... or ~O_NONBLOCK&...");
 273     }
 274   } else if (cmd == F_SETFL) {
 275     hm_rv_succfail
 276   } else {
 277     Psyntax("fcntl not F_GETFL or F_SETFL");
 278   }
 279  ')
 280  $2
 281
 282  hm_create_nothing
 283  m4_define(`hm_arg_fdset_io',`Parg("$'`1"); Pfdset($'`1,$'`2);')
 284  m4_define(`hm_arg_addr_out',`Parg("$'`1"); Paddr($'`1,$'`2);')
 285  $3
 286  if (vb2.used != vb2.avail) Psyntax("junk at end of line");
 287
 288  hm_create_nothing
 289  m4_define(`hm_arg_bytes_out',`r= Pbytes($'`2,$'`4);')
 290  $3
 291
 292  P_updatetime();
 293  return r;
 294 }
 295 ')
 296
 297 m4_include(`hsyscalls.i4')