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

   1 m4_dnl hcommon.c
   2 m4_dnl (part of complex test harness, not of the library)
   3 m4_dnl - routines used for both record and playback
   4
   5 m4_dnl  This file is
   6 m4_dnl    Copyright (C) 1997-2000 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) 1997-2000 Ian Jackson <ian@davenant.greenend.org.uk>
  10 m4_dnl    Copyright (C) 1999-2000 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 <string.h>
  29 #include <errno.h>
  30 #include <stdlib.h>
  31 #include <stdarg.h>
  32
  33 #include <sys/types.h>
  34 #include <sys/socket.h>
  35 #include <netinet/in.h>
  36 #include <arpa/inet.h>
  37
  38 #include <unistd.h>
  39 #include <fcntl.h>
  40
  41 #include "harness.h"
  42 #include "internal.h"
  43
  44 vbuf vb;
  45 FILE *Toutputfile= 0;
  46 struct timeval currenttime;
  47
  48 const struct Terrno Terrnos[]= {
  49   { "EBADF",                     EBADF                        },
  50   { "EAGAIN",                    EAGAIN                       },
  51   { "EINPROGRESS",               EINPROGRESS                  },
  52   { "EINTR",                     EINTR                        },
  53   { "EINVAL",                    EINVAL                       },
  54   { "EMSGSIZE",                  EMSGSIZE                     },
  55   { "ENOBUFS",                   ENOBUFS                      },
  56   { "ENOENT",                    ENOENT                       },
  57   { "ENOPROTOOPT",               ENOPROTOOPT                  },
  58   { "ENOSPC",                    ENOSPC                       },
  59   { "EWOULDBLOCK",               EWOULDBLOCK                  },
  60   { "EHOSTUNREACH",              EHOSTUNREACH                 },
  61   { "ECONNRESET",                ECONNRESET                   },
  62   { "ECONNREFUSED",              ECONNREFUSED                 },
  63   { "EPIPE",                     EPIPE                        },
  64   { "ENOTSOCK",                  ENOTSOCK                     },
  65   {  0,                          0                            }
  66 };
  67
  68 static vbuf vbw;
  69
  70 int Hgettimeofday(struct timeval *tv, struct timezone *tz) {
  71   Tensurerecordfile();
  72   Tmust("gettimeofday","tz",!tz);
  73   *tv= currenttime;
  74   return 0;
  75 }
  76
  77 int Hwritev(int fd, const struct iovec *vector, size_t count) {
  78   size_t i;
  79
  80   vbw.used= 0;
  81   for (i=0; i<count; i++, vector++) {
  82     if (!adns__vbuf_append(&vbw,vector->iov_base,vector->iov_len)) Tnomem();
  83   }
  84   return Hwrite(fd,vbw.buf,vbw.used);
  85 }
  86
  87 m4_define(`hm_syscall', `
  88  hm_create_proto_q
  89 void Q$1(hm_args_massage($3,void)) {
  90
  91  vb.used= 0;
  92  Tvba("$1");
  93  m4_define(`hm_na',`')
  94  m4_define(`hm_arg_nullptr',`')
  95  m4_define(`hm_arg_int', `Tvbf(" $'`1=%d",$'`1);')
  96  m4_define(`hm_arg_fdset_io', `Tvbf(" $'`1="); Tvbfdset($'`2,$'`1);')
  97  m4_define(`hm_arg_pollfds_io', `Tvbf(" $'`1="); Tvbpollfds($'`1,$'`2);')
  98  m4_define(`hm_arg_timeval_in_rel_null', `
  99   if ($'`1) Tvbf(" $'`1=%ld.%06ld",(long)$'`1->tv_sec,(long)$'`1->tv_usec);
 100   else Tvba(" $'`1=null");')
 101  m4_define(`hm_arg_must', `')
 102  m4_define(`hm_arg_socktype', `
 103   Tvbf($'`1==SOCK_STREAM ? " $'`1=SOCK_STREAM" : " $'`1=SOCK_DGRAM");')
 104  m4_define(`hm_arg_ign', `')
 105  m4_define(`hm_arg_fd', `Tvbf(" $'`1=%d",$'`1);')
 106  m4_define(`hm_arg_fcntl_cmd_arg', `
 107   if ($'`1 == F_SETFL) {
 108    Tvbf(" $'`1=F_SETFL %s",arg & O_NONBLOCK ? "O_NONBLOCK|..." : "~O_NONBLOCK&...");
 109   } else if ($'`1 == F_GETFL) {
 110    Tvba(" $'`1=F_GETFL");
 111   } else {
 112    Tmust("$'`1","F_GETFL/F_SETFL",0);
 113   }')
 114  m4_define(`hm_arg_addr_in', `Tvba(" $'`1="); Tvbaddr($'`1,$'`2);')
 115  m4_define(`hm_arg_bytes_in', `')
 116  m4_define(`hm_arg_bytes_out', `Tvbf(" $'`4=%lu",(unsigned long)$'`4);')
 117  m4_define(`hm_arg_addr_out', `Tvbf(" *$'`2=%d",$'`2);')
 118   $3
 119
 120  hm_create_nothing
 121  m4_define(`hm_arg_bytes_in', `Tvbbytes($'`2,$'`4);')
 122   $3
 123
 124   Q_vb();
 125 }
 126 ')
 127
 128 m4_define(`hm_specsyscall', `')
 129
 130 m4_include(`hsyscalls.i4')
 131
 132 void Tvbaddr(const struct sockaddr *addr, int len) {
 133   const struct sockaddr_in *ai= (const struct sockaddr_in*)addr;
 134
 135   assert(len==sizeof(struct sockaddr_in));
 136   assert(ai->sin_family==AF_INET);
 137   Tvbf("%s:%u",inet_ntoa(ai->sin_addr),htons(ai->sin_port));
 138 }
 139
 140 void Tvbbytes(const void *buf, int len) {
 141   const byte *bp;
 142   int i;
 143
 144   if (!len) { Tvba("\n     ."); return; }
 145   for (i=0, bp=buf; i<len; i++, bp++) {
 146     if (!(i&31)) Tvba("\n     ");
 147     else if (!(i&3)) Tvba(" ");
 148     Tvbf("%02x",*bp);
 149   }
 150   Tvba(".");
 151 }
 152
 153 void Tvbfdset(int max, const fd_set *fds) {
 154   int i;
 155   const char *comma= "";
 156
 157   Tvba("[");
 158   for (i=0; i<max; i++) {
 159     if (!FD_ISSET(i,fds)) continue;
 160     Tvba(comma);
 161     Tvbf("%d",i);
 162     comma= ",";
 163   }
 164   Tvba("]");
 165 }
 166
 167 static void Tvbpollevents(int events) {
 168   const char *delim= "";
 169
 170   events &= (POLLIN|POLLOUT|POLLPRI);
 171   if (!events) { Tvba("0"); return; }
 172   if (events & POLLIN) { Tvba("POLLIN"); delim= "|"; }
 173   if (events & POLLOUT) { Tvba(delim); Tvba("POLLOUT"); delim= "|"; }
 174   if (events & POLLPRI) { Tvba(delim); Tvba("POLLPRI"); }
 175 }
 176
 177 void Tvbpollfds(const struct pollfd *fds, int nfds) {
 178   const char *comma= "";
 179
 180   Tvba("[");
 181   while (nfds>0) {
 182     Tvba(comma);
 183     Tvbf("{fd=%d, events=",fds->fd);
 184     Tvbpollevents(fds->events);
 185     Tvba(", revents=");
 186     Tvbpollevents(fds->revents);
 187     Tvba("}");
 188     comma= ", ";
 189     nfds--; fds++;
 190   }
 191   Tvba("]");
 192 }
 193
 194 void Tvberrno(int e) {
 195   const struct Terrno *te;
 196
 197   for (te= Terrnos; te->n && te->v != e; te++);
 198   assert(te->n);
 199   Tvba(te->n);
 200 }
 201
 202 void Tvba(const char *str) {
 203   if (!adns__vbuf_appendstr(&vb,str)) Tnomem();
 204 }
 205
 206 void Tvbvf(const char *fmt, va_list al) {
 207   char buf[1000];
 208   buf[sizeof(buf)-2]= '\t';
 209   vsnprintf(buf,sizeof(buf),fmt,al);
 210   assert(buf[sizeof(buf)-2] == '\t');
 211
 212   Tvba(buf);
 213 }
 214
 215 void Tvbf(const char *fmt, ...) {
 216   va_list al;
 217   va_start(al,fmt);
 218   Tvbvf(fmt,al);
 219   va_end(al);
 220 }
 221
 222
 223 void Tmust(const char *call, const char *arg, int cond) {
 224   if (cond) return;
 225   fprintf(stderr,"adns test harness: case not handled: system call %s, arg %s",call,arg);
 226   exit(-1);
 227 }
 228
 229 void Tfailed(const char *why) {
 230   fprintf(stderr,"adns test harness: failure: %s: %s\n",why,strerror(errno));
 231   exit(-1);
 232 }
 233
 234 void Tnomem(void) {
 235   Tfailed("unable to malloc/realloc");
 236 }
 237
 238 void Toutputerr(void) {
 239   Tfailed("write error on test harness output");
 240 }
 241
 242 struct malloced {
 243   struct malloced *next, *back;
 244   size_t sz;
 245   unsigned long count;
 246   struct { double d; long ul; void *p; void (*fp)(void); } data;
 247 };
 248
 249 static unsigned long malloccount, mallocfailat;
 250 static struct { struct malloced *head, *tail; } mallocedlist;
 251
 252 #define MALLOCHSZ ((char*)&mallocedlist.head->data - (char*)mallocedlist.head)
 253
 254 void *Hmalloc(size_t sz) {
 255   struct malloced *newnode;
 256   const char *mfavar;
 257   char *ep;
 258
 259   assert(sz);
 260
 261   newnode= malloc(MALLOCHSZ + sz);  if (!newnode) Tnomem();
 262
 263   LIST_LINK_TAIL(mallocedlist,newnode);
 264   newnode->sz= sz;
 265   newnode->count= ++malloccount;
 266   if (!mallocfailat) {
 267     mfavar= getenv("ADNS_REGRESS_MALLOCFAILAT");
 268     if (mfavar) {
 269       mallocfailat= strtoul(mfavar,&ep,10);
 270       if (!mallocfailat || *ep) Tfailed("ADNS_REGRESS_MALLOCFAILAT bad value");
 271     } else {
 272       mallocfailat= ~0UL;
 273     }
 274   }
 275   assert(newnode->count != mallocfailat);
 276   memset(&newnode->data,0xc7,sz);
 277   return &newnode->data;
 278 }
 279
 280 void Hfree(void *ptr) {
 281   struct malloced *oldnode;
 282
 283   if (!ptr) return;
 284
 285   oldnode= (void*)((char*)ptr - MALLOCHSZ);
 286   LIST_UNLINK(mallocedlist,oldnode);
 287   memset(&oldnode->data,0x38,oldnode->sz);
 288   free(oldnode);
 289 }
 290
 291 void *Hrealloc(void *op, size_t nsz) {
 292   struct malloced *oldnode;
 293   void *np;
 294   size_t osz;
 295
 296   if (op) { oldnode= (void*)((char*)op - MALLOCHSZ); osz= oldnode->sz; } else { osz= 0; }
 297   np= Hmalloc(nsz);
 298   memcpy(np,op, osz>nsz ? nsz : osz);
 299   Hfree(op);
 300   return np;
 301 }
 302
 303 void Hexit(int rv) {
 304   struct malloced *loopnode;
 305
 306   Tshutdown();
 307   adns__vbuf_free(&vb);
 308   adns__vbuf_free(&vbw);
 309   if (mallocedlist.head) {
 310     fprintf(stderr,"adns test harness: memory leaked:");
 311     for (loopnode=mallocedlist.head; loopnode; loopnode=loopnode->next)
 312       fprintf(stderr," %lu",loopnode->count);
 313     putc('\n',stderr);
 314     if (ferror(stderr)) exit(-1);
 315   }
 316   exit(rv);
 317 }
 318
 319 pid_t Hgetpid(void) {
 320   return 2264; /* just some number */
 321 }
 322