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 part of adns, which is
   6 m4_dnl    Copyright (C) 1997-2000,2003,2006,2014  Ian Jackson
   7 m4_dnl    Copyright (C) 1999-2000,2003,2006  Tony Finch
   8 m4_dnl    Copyright (C) 1991 Massachusetts Institute of Technology
   9 m4_dnl  (See the file INSTALL for full details.)
  10 m4_dnl
  11 m4_dnl  This program is free software; you can redistribute it and/or modify
  12 m4_dnl  it under the terms of the GNU General Public License as published by
  13 m4_dnl  the Free Software Foundation; either version 3, or (at your option)
  14 m4_dnl  any later version.
  15 m4_dnl
  16 m4_dnl  This program is distributed in the hope that it will be useful,
  17 m4_dnl  but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 m4_dnl  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 m4_dnl  GNU General Public License for more details.
  20 m4_dnl
  21 m4_dnl  You should have received a copy of the GNU General Public License
  22 m4_dnl  along with this program; if not, write to the Free Software Foundation.
  23
  24 m4_include(hmacros.i4)
  25
  26 #include <string.h>
  27 #include <errno.h>
  28 #include <stdlib.h>
  29 #include <stdarg.h>
  30
  31 #include <sys/types.h>
  32 #include <sys/socket.h>
  33 #include <netinet/in.h>
  34 #include <arpa/inet.h>
  35
  36 #include <unistd.h>
  37 #include <fcntl.h>
  38
  39 #include "harness.h"
  40 #include "internal.h"
  41
  42 vbuf vb;
  43 FILE *Toutputfile= 0;
  44 struct timeval currenttime;
  45
  46 const struct Terrno Terrnos[]= {
  47   { "EBADF",                     EBADF                        },
  48   { "EAGAIN",                    EAGAIN                       },
  49   { "EINPROGRESS",               EINPROGRESS                  },
  50   { "EINTR",                     EINTR                        },
  51   { "EINVAL",                    EINVAL                       },
  52   { "EMSGSIZE",                  EMSGSIZE                     },
  53   { "ENOBUFS",                   ENOBUFS                      },
  54   { "ENOENT",                    ENOENT                       },
  55   { "ENOPROTOOPT",               ENOPROTOOPT                  },
  56   { "ENOSPC",                    ENOSPC                       },
  57   { "EWOULDBLOCK",               EWOULDBLOCK                  },
  58   { "EHOSTUNREACH",              EHOSTUNREACH                 },
  59   { "ECONNRESET",                ECONNRESET                   },
  60   { "ECONNREFUSED",              ECONNREFUSED                 },
  61   { "EPIPE",                     EPIPE                        },
  62   { "ENOTSOCK",                  ENOTSOCK                     },
  63   {  0,                          0                            }
  64 };
  65
  66 static vbuf vbw;
  67
  68 int Hgettimeofday(struct timeval *tv, struct timezone *tz) {
  69   Tensurerecordfile();
  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" : " $'`1=SOCK_DGRAM");')
 102  m4_define(`hm_arg_addrfam', `
 103   Tvbf($'`1==AF_INET ? " $'`1=AF_INET" :
 104           $'`1==AF_INET6 ? " $'`1=AF_INET6" :
 105           " $'`1=AF_???");')
 106  m4_define(`hm_arg_ign', `')
 107  m4_define(`hm_arg_fd', `Tvbf(" $'`1=%d",$'`1);')
 108  m4_define(`hm_arg_fcntl_cmd_arg', `
 109   if ($'`1 == F_SETFL) {
 110    Tvbf(" $'`1=F_SETFL %s",arg & O_NONBLOCK ? "O_NONBLOCK|..." : "~O_NONBLOCK&...");
 111   } else if ($'`1 == F_GETFL) {
 112    Tvba(" $'`1=F_GETFL");
 113   } else {
 114    Tmust("$'`1","F_GETFL/F_SETFL",0);
 115   }')
 116  m4_define(`hm_arg_addr_in', `Tvba(" $'`1="); Tvbaddr($'`1,$'`2);')
 117  m4_define(`hm_arg_bytes_in', `')
 118  m4_define(`hm_arg_bytes_out', `Tvbf(" $'`4=%lu",(unsigned long)$'`4);')
 119  m4_define(`hm_arg_addr_out', `')
 120   $3
 121
 122  hm_create_nothing
 123  m4_define(`hm_arg_bytes_in', `Tvbbytes($'`2,$'`4);')
 124   $3
 125
 126   Q_vb();
 127 }
 128 ')
 129
 130 m4_define(`hm_specsyscall', `')
 131
 132 m4_include(`hsyscalls.i4')
 133
 134 void Tvbaddr(const struct sockaddr *addr, int len) {
 135   char buf[ADNS_ADDR2TEXT_BUFLEN];
 136   int err, port;
 137   int sz= sizeof(buf);
 138
 139   err= adns_addr2text(addr, 0, buf,&sz, &port);
 140   assert(!err);
 141
 142   Tvbf(strchr(buf, ':') ? "[%s]:%d" : "%s:%d", buf,port);
 143 }
 144
 145 void Tvbbytes(const void *buf, int len) {
 146   const byte *bp;
 147   int i;
 148
 149   if (!len) { Tvba("\n     ."); return; }
 150   for (i=0, bp=buf; i<len; i++, bp++) {
 151     if (!(i&31)) Tvba("\n     ");
 152     else if (!(i&3)) Tvba(" ");
 153     Tvbf("%02x",*bp);
 154   }
 155   Tvba(".");
 156 }
 157
 158 void Tvbfdset(int max, const fd_set *fds) {
 159   int i;
 160   const char *comma= "";
 161
 162   Tvba("[");
 163   for (i=0; i<max; i++) {
 164     if (!FD_ISSET(i,fds)) continue;
 165     Tvba(comma);
 166     Tvbf("%d",i);
 167     comma= ",";
 168   }
 169   Tvba("]");
 170 }
 171
 172 static void Tvbpollevents(int events) {
 173   const char *delim= "";
 174
 175   events &= (POLLIN|POLLOUT|POLLPRI);
 176   if (!events) { Tvba("0"); return; }
 177   if (events & POLLIN) { Tvba("POLLIN"); delim= "|"; }
 178   if (events & POLLOUT) { Tvba(delim); Tvba("POLLOUT"); delim= "|"; }
 179   if (events & POLLPRI) { Tvba(delim); Tvba("POLLPRI"); }
 180 }
 181
 182 void Tvbpollfds(const struct pollfd *fds, int nfds) {
 183   const char *comma= "";
 184
 185   Tvba("[");
 186   while (nfds>0) {
 187     Tvba(comma);
 188     Tvbf("{fd=%d, events=",fds->fd);
 189     Tvbpollevents(fds->events);
 190     Tvba(", revents=");
 191     Tvbpollevents(fds->revents);
 192     Tvba("}");
 193     comma= ", ";
 194     nfds--; fds++;
 195   }
 196   Tvba("]");
 197 }
 198
 199 void Tvberrno(int e) {
 200   const struct Terrno *te;
 201
 202   for (te= Terrnos; te->n && te->v != e; te++);
 203   assert(te->n);
 204   Tvba(te->n);
 205 }
 206
 207 void Tvba(const char *str) {
 208   if (!adns__vbuf_appendstr(&vb,str)) Tnomem();
 209 }
 210
 211 void Tvbvf(const char *fmt, va_list al) {
 212   char buf[1000];
 213   buf[sizeof(buf)-2]= '\t';
 214   vsnprintf(buf,sizeof(buf),fmt,al);
 215   assert(buf[sizeof(buf)-2] == '\t');
 216
 217   Tvba(buf);
 218 }
 219
 220 void Tvbf(const char *fmt, ...) {
 221   va_list al;
 222   va_start(al,fmt);
 223   Tvbvf(fmt,al);
 224   va_end(al);
 225 }
 226
 227
 228 void Tmust(const char *call, const char *arg, int cond) {
 229   if (cond) return;
 230   fprintf(stderr,"adns test harness: case not handled: system call %s, arg %s",call,arg);
 231   exit(-1);
 232 }
 233
 234 void Tfailed(const char *why) {
 235   fprintf(stderr,"adns test harness: failure: %s: %s\n",why,strerror(errno));
 236   exit(-1);
 237 }
 238
 239 void Tnomem(void) {
 240   Tfailed("unable to malloc/realloc");
 241 }
 242
 243 void Toutputerr(void) {
 244   Tfailed("write error on test harness output");
 245 }
 246
 247 struct malloced {
 248   struct malloced *next, *back;
 249   size_t sz;
 250   unsigned long count;
 251   struct { double d; long ul; void *p; void (*fp)(void); } data;
 252 };
 253
 254 static unsigned long malloccount, mallocfailat;
 255 static struct { struct malloced *head, *tail; } mallocedlist;
 256
 257 #define MALLOCHSZ ((char*)&mallocedlist.head->data - (char*)mallocedlist.head)
 258
 259 void *Hmalloc(size_t sz) {
 260   struct malloced *newnode;
 261   const char *mfavar;
 262   char *ep;
 263
 264   assert(sz);
 265
 266   newnode= malloc(MALLOCHSZ + sz);  if (!newnode) Tnomem();
 267
 268   LIST_LINK_TAIL(mallocedlist,newnode);
 269   newnode->sz= sz;
 270   newnode->count= ++malloccount;
 271   if (!mallocfailat) {
 272     mfavar= getenv("ADNS_REGRESS_MALLOCFAILAT");
 273     if (mfavar) {
 274       mallocfailat= strtoul(mfavar,&ep,10);
 275       if (!mallocfailat || *ep) Tfailed("ADNS_REGRESS_MALLOCFAILAT bad value");
 276     } else {
 277       mallocfailat= ~0UL;
 278     }
 279   }
 280   assert(newnode->count != mallocfailat);
 281   memset(&newnode->data,0xc7,sz);
 282   return &newnode->data;
 283 }
 284
 285 void Hfree(void *ptr) {
 286   struct malloced *oldnode;
 287
 288   if (!ptr) return;
 289
 290   oldnode= (void*)((char*)ptr - MALLOCHSZ);
 291   LIST_UNLINK(mallocedlist,oldnode);
 292   memset(&oldnode->data,0x38,oldnode->sz);
 293   free(oldnode);
 294 }
 295
 296 void *Hrealloc(void *op, size_t nsz) {
 297   struct malloced *oldnode;
 298   void *np;
 299   size_t osz;
 300
 301   if (op) { oldnode= (void*)((char*)op - MALLOCHSZ); osz= oldnode->sz; } else { osz= 0; }
 302   np= Hmalloc(nsz);
 303   memcpy(np,op, osz>nsz ? nsz : osz);
 304   Hfree(op);
 305   return np;
 306 }
 307
 308 void Hexit(int rv) {
 309   struct malloced *loopnode;
 310
 311   Tshutdown();
 312   adns__vbuf_free(&vb);
 313   adns__vbuf_free(&vbw);
 314   if (mallocedlist.head) {
 315     fprintf(stderr,"adns test harness: memory leaked:");
 316     for (loopnode=mallocedlist.head; loopnode; loopnode=loopnode->next)
 317       fprintf(stderr," %lu",loopnode->count);
 318     putc('\n',stderr);
 319     if (ferror(stderr)) exit(-1);
 320   }
 321   exit(rv);
 322 }
 323
 324 pid_t Hgetpid(void) {
 325   return 2264; /* just some number */
 326 }
 327