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_include(`hsyscalls.i4')
 126
 127
 128 void Tvbaddr(const struct sockaddr *addr, int len) {
 129   const struct sockaddr_in *ai= (const struct sockaddr_in*)addr;
 130
 131   assert(len==sizeof(struct sockaddr_in));
 132   assert(ai->sin_family==AF_INET);
 133   Tvbf("%s:%u",inet_ntoa(ai->sin_addr),htons(ai->sin_port));
 134 }
 135
 136 void Tvbbytes(const void *buf, int len) {
 137   const byte *bp;
 138   int i;
 139
 140   if (!len) { Tvba("\n     ."); return; }
 141   for (i=0, bp=buf; i<len; i++, bp++) {
 142     if (!(i&31)) Tvba("\n     ");
 143     else if (!(i&3)) Tvba(" ");
 144     Tvbf("%02x",*bp);
 145   }
 146   Tvba(".");
 147 }
 148
 149 void Tvbfdset(int max, const fd_set *fds) {
 150   int i;
 151   const char *comma= "";
 152
 153   Tvba("[");
 154   for (i=0; i<max; i++) {
 155     if (!FD_ISSET(i,fds)) continue;
 156     Tvba(comma);
 157     Tvbf("%d",i);
 158     comma= ",";
 159   }
 160   Tvba("]");
 161 }
 162
 163 static void Tvbpollevents(int events) {
 164   const char *delim= "";
 165
 166   events &= (POLLIN|POLLOUT|POLLPRI);
 167   if (!events) { Tvba("0"); return; }
 168   if (events & POLLIN) { Tvba("POLLIN"); delim= "|"; }
 169   if (events & POLLOUT) { Tvba(delim); Tvba("POLLOUT"); delim= "|"; }
 170   if (events & POLLPRI) { Tvba(delim); Tvba("POLLPRI"); }
 171 }
 172
 173 void Tvbpollfds(const struct pollfd *fds, int nfds) {
 174   const char *comma= "";
 175
 176   Tvba("[");
 177   while (nfds>0) {
 178     Tvba(comma);
 179     Tvbf("{fd=%d, events=",fds->fd);
 180     Tvbpollevents(fds->events);
 181     Tvba(", revents=");
 182     Tvbpollevents(fds->revents);
 183     Tvba("}");
 184     comma= ", ";
 185     nfds--; fds++;
 186   }
 187   Tvba("]");
 188 }
 189
 190 void Tvberrno(int e) {
 191   const struct Terrno *te;
 192
 193   for (te= Terrnos; te->n && te->v != e; te++);
 194   assert(te->n);
 195   Tvba(te->n);
 196 }
 197
 198 void Tvba(const char *str) {
 199   if (!adns__vbuf_appendstr(&vb,str)) Tnomem();
 200 }
 201
 202 void Tvbvf(const char *fmt, va_list al) {
 203   char buf[1000];
 204   buf[sizeof(buf)-2]= '\t';
 205   vsnprintf(buf,sizeof(buf),fmt,al);
 206   assert(buf[sizeof(buf)-2] == '\t');
 207
 208   Tvba(buf);
 209 }
 210
 211 void Tvbf(const char *fmt, ...) {
 212   va_list al;
 213   va_start(al,fmt);
 214   Tvbvf(fmt,al);
 215   va_end(al);
 216 }
 217
 218
 219 void Tmust(const char *call, const char *arg, int cond) {
 220   if (cond) return;
 221   fprintf(stderr,"adns test harness: case not handled: system call %s, arg %s",call,arg);
 222   exit(-1);
 223 }
 224
 225 void Tfailed(const char *why) {
 226   fprintf(stderr,"adns test harness: failure: %s: %s\n",why,strerror(errno));
 227   exit(-1);
 228 }
 229
 230 void Tnomem(void) {
 231   Tfailed("unable to malloc/realloc");
 232 }
 233
 234 void Toutputerr(void) {
 235   Tfailed("write error on test harness output");
 236 }
 237
 238 struct malloced {
 239   struct malloced *next, *back;
 240   size_t sz;
 241   unsigned long count;
 242   struct { double d; long ul; void *p; void (*fp)(void); } data;
 243 };
 244
 245 static unsigned long malloccount, mallocfailat;
 246 static struct { struct malloced *head, *tail; } mallocedlist;
 247
 248 #define MALLOCHSZ ((char*)&mallocedlist.head->data - (char*)mallocedlist.head)
 249
 250 void *Hmalloc(size_t sz) {
 251   struct malloced *newnode;
 252   const char *mfavar;
 253   char *ep;
 254
 255   assert(sz);
 256
 257   newnode= malloc(MALLOCHSZ + sz);  if (!newnode) Tnomem();
 258
 259   LIST_LINK_TAIL(mallocedlist,newnode);
 260   newnode->sz= sz;
 261   newnode->count= ++malloccount;
 262   if (!mallocfailat) {
 263     mfavar= getenv("ADNS_REGRESS_MALLOCFAILAT");
 264     if (mfavar) {
 265       mallocfailat= strtoul(mfavar,&ep,10);
 266       if (!mallocfailat || *ep) Tfailed("ADNS_REGRESS_MALLOCFAILAT bad value");
 267     } else {
 268       mallocfailat= ~0UL;
 269     }
 270   }
 271   assert(newnode->count != mallocfailat);
 272   memset(&newnode->data,0xc7,sz);
 273   return &newnode->data;
 274 }
 275
 276 void Hfree(void *ptr) {
 277   struct malloced *oldnode;
 278
 279   if (!ptr) return;
 280
 281   oldnode= (void*)((char*)ptr - MALLOCHSZ);
 282   LIST_UNLINK(mallocedlist,oldnode);
 283   memset(&oldnode->data,0x38,oldnode->sz);
 284   free(oldnode);
 285 }
 286
 287 void *Hrealloc(void *op, size_t nsz) {
 288   struct malloced *oldnode;
 289   void *np;
 290   size_t osz;
 291
 292   if (op) { oldnode= (void*)((char*)op - MALLOCHSZ); osz= oldnode->sz; } else { osz= 0; }
 293   np= Hmalloc(nsz);
 294   memcpy(np,op, osz>nsz ? nsz : osz);
 295   Hfree(op);
 296   return np;
 297 }
 298
 299 void Hexit(int rv) {
 300   struct malloced *loopnode;
 301
 302   Tshutdown();
 303   adns__vbuf_free(&vb);
 304   adns__vbuf_free(&vbw);
 305   if (mallocedlist.head) {
 306     fprintf(stderr,"adns test harness: memory leaked:");
 307     for (loopnode=mallocedlist.head; loopnode; loopnode=loopnode->next)
 308       fprintf(stderr," %lu(%lu)",loopnode->count,(unsigned long)loopnode->sz);
 309     putc('\n',stderr);
 310     if (ferror(stderr)) exit(-1);
 311   }
 312   exit(rv);
 313 }