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