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