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