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