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