[adns] / regress / hplayback.c

#include <assert.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/time.h>
#include <unistd.h>
#include <fcntl.h>
#include "harness.h"
static FILE *Tinputfile, *Treportfile;
static vbuf vb2;
extern void Tshutdown(void) {
  adns__vbuf_free(&vb2);
}
static void Tensurereportfile(void) {
  const char *fdstr;
  int fd;
  if (Treportfile) return;
  Treportfile= stderr;
  fdstr= getenv("ADNS_TEST_REPORT_FD"); if (!fdstr) return;
  fd= atoi(fdstr);
  Treportfile= fdopen(fd,"a"); if (!Treportfile) Tfailed("fdopen ADNS_TEST_REPORT_FD");
}
static void Psyntax(const char *where) {
  fprintf(stderr,"adns test harness: syntax error in test log input file: %s\n",where);
  exit(-1);
}
static void Pcheckinput(void) {
  if (ferror(Tinputfile)) Tfailed("read test log input file");
  if (feof(Tinputfile)) Psyntax("eof at syscall reply");
}
void Tensurerecordfile(void) {
  const char *fdstr;
  int fd;
  int chars;
  unsigned long sec, usec;
  if (Tinputfile) return;
  Tinputfile= stdin;
  fdstr= getenv("ADNS_TEST_IN_FD");
  if (fdstr) {
    fd= atoi(fdstr);
    Tinputfile= fdopen(fd,"r"); if (!Tinputfile) Tfailed("fdopen ADNS_TEST_IN_FD");
  }
  setvbuf(Tinputfile,0,_IONBF,0);
  if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
  fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
  chars= -1;
  sscanf(vb2.buf," start %lu.%lu%n",&sec,&usec,&chars);
  if (chars==-1) Psyntax("start time invalid");
  currenttime.tv_sec= sec;
  currenttime.tv_usec= usec;
  if (vb2.buf[chars] != '\n') Psyntax("not newline after start time");
}
static void Parg(const char *argname) {
  int l;
  if (vb2.buf[vb2.used++] != ' ') Psyntax("not a space before argument");
  l= strlen(argname);
  if (memcmp(vb2.buf+vb2.used,argname,l)) Psyntax("argument name wrong");
  vb2.used+= l;
  if (vb2.buf[vb2.used++] != '=') Psyntax("not = after argument name");
}
static int Pstring_maybe(const char *string) {
  int l;
  l= strlen(string);
  if (memcmp(vb2.buf+vb2.used,string,l)) return 0;
  vb2.used+= l;
  return 1;
}
static void Pstring(const char *string, const char *emsg) {
  if (Pstring_maybe(string)) return;
  Psyntax(emsg);
}
static int Perrno(const char *stuff) {
  const struct Terrno *te;
  int r;
  char *ep;
  for (te= Terrnos; te->n && strcmp(te->n,stuff); te++);
  if (te->n) return te->v;
  r= strtoul(stuff+2,&ep,10);
  if (*ep) Psyntax("errno value not recognised, not numeric");
  return r;
}
static void P_updatetime(void) {
  int chars;
  unsigned long sec, usec;
  if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
  fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
  chars= -1;
  sscanf(vb2.buf," +%lu.%lu%n",&sec,&usec,&chars);
  if (chars==-1) Psyntax("update time invalid");
  currenttime.tv_sec+= sec;
  currenttime.tv_usec+= usec;
  if (currenttime.tv_usec > 1000000) {
    currenttime.tv_sec++;
    currenttime.tv_usec -= 1000000;
  }
  if (vb2.buf[chars] != '\n') Psyntax("not newline after update time");
}
static void Pfdset(fd_set *set, int max) {
  int r, c;
  char *ep;
  if (vb2.buf[vb2.used++] != '[') Psyntax("fd set start not [");
  FD_ZERO(set);
  if (vb2.buf[vb2.used] == ']') { vb2.used++; return; }
  for (;;) {
    r= strtoul(vb2.buf+vb2.used,&ep,10);
    if (r>=max) Psyntax("fd set member > max");
    if (ep == (char*)vb2.buf+vb2.used) Psyntax("empty entry in fd set");
    FD_SET(r,set);
    vb2.used= ep - (char*)vb2.buf;
    c= vb2.buf[vb2.used++];
    if (c == ']') break;
    if (c != ',') Psyntax("fd set separator not ,");
  }
}
#ifdef HAVE_POLL
static int Ppollfdevents(void) {
  int events;
  if (Pstring_maybe("0")) return 0;
  events= 0;
  if (Pstring_maybe("POLLIN")) {
    events |= POLLIN;
    if (!Pstring_maybe("|")) return events;
  }
  if (Pstring_maybe("POLLOUT")) {
    events |= POLLOUT;
    if (!Pstring_maybe("|")) return events;
  }
  Pstring("POLLPRI","pollfdevents PRI?");
  return events;
}
static void Ppollfds(struct pollfd *fds, int nfds) {
  int i;
  char *ep;
  const char *comma= "";
  if (vb2.buf[vb2.used++] != '[') Psyntax("pollfds start not [");
  for (i=0; i<nfds; i++) {
    Pstring("{fd=","{fd= in pollfds");
    fds->fd= strtoul(vb2.buf+vb2.used,&ep,10);
    vb2.used= ep - (char*)vb2.buf;    
    Pstring(", events=",", events= in pollfds");
    fds->events= Ppollfdevents();
    Pstring(", revents=",", revents= in pollfds");
    fds->revents= Ppollfdevents();
    Pstring("}","} in pollfds");
    Pstring(comma,"separator in pollfds");
    comma= ", ";
  }
  if (vb2.buf[vb2.used++] != ']') Psyntax("pollfds end not ]");
}
#endif
static void Paddr(struct sockaddr *addr, int *lenr) {
  struct sockaddr_in *sa= (struct sockaddr_in*)addr;
  char *p, *ep;
  long ul;
  assert(*lenr >= sizeof(*sa));
  p= strchr(vb2.buf+vb2.used,':');
  if (!p) Psyntax("no port on address");
  *p++= 0;
  memset(sa,0,sizeof(*sa));
  sa->sin_family= AF_INET;
  if (!inet_aton(vb2.buf+vb2.used,&sa->sin_addr)) Psyntax("invalid address");
  ul= strtoul(p,&ep,10);
  if (*ep && *ep != ' ') Psyntax("invalid port (bad syntax)");
  if (ul >= 65536) Psyntax("port too large");
  sa->sin_port= htons(ul);
  *lenr= sizeof(*sa);
  vb2.used= ep - (char*)vb2.buf;
}
static int Pbytes(byte *buf, int maxlen) {
  static const char hexdigits[]= "0123456789abcdef";
  int c, v, done;
  const char *pf;
  done= 0;
  for (;;) {
    c= getc(Tinputfile); Pcheckinput();
    if (c=='\n' || c==' ' || c=='\t') continue;
    if (c=='.') break;
    pf= strchr(hexdigits,c); if (!pf) Psyntax("invalid first hex digit");
    v= (pf-hexdigits)<<4;
    c= getc(Tinputfile); Pcheckinput();
    pf= strchr(hexdigits,c); if (!pf) Psyntax("invalid second hex digit");
    v |= (pf-hexdigits);
    if (maxlen<=0) Psyntax("buffer overflow in bytes");
    *buf++= v;
    maxlen--; done++;
  }
  for (;;) {
    c= getc(Tinputfile); Pcheckinput();
    if (c=='\n') return done;
  }
}
void Q_vb(void) {
  int r;
  const char *nl;
  Tensurerecordfile();
  if (!adns__vbuf_ensure(&vb2,vb.used+2)) Tnomem();
  r= fread(vb2.buf,1,vb.used+2,Tinputfile);
  if (feof(Tinputfile)) {
    fprintf(stderr,"adns test harness: input ends prematurely; program did:\n %.*s\n",
           vb.used,vb.buf);
    exit(-1);
  }
  Pcheckinput();
  if (vb2.buf[0] != ' ') Psyntax("not space before call");
  if (memcmp(vb.buf,vb2.buf+1,vb.used) ||
      vb2.buf[vb.used+1] != '\n') {
    fprintf(stderr,
            "adns test harness: program did unexpected:\n %.*s\n"
            "was expecting:\n %.*s\n",
            vb.used,vb.buf, vb.used,vb2.buf+1);
    exit(1);
  }
  Tensurereportfile();
  nl= memchr(vb.buf,'\n',vb.used);
  fprintf(Treportfile," %.*s\n", (int)(nl ? nl - (const char*)vb.buf : vb.used), vb.buf);
}
int Hselect(	int max , fd_set *rfds , fd_set *wfds , fd_set *efds , struct timeval *to 	) {
 int r, amtread;
 char *ep;
 Qselect(	max , rfds , wfds , efds , to 	);
 if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
 fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
 Tensurereportfile();
 fprintf(Treportfile,"%s",vb2.buf);
 amtread= strlen(vb2.buf);
 if (amtread<=0 || vb2.buf[--amtread]!='\n')
  Psyntax("badly formed line");
 vb2.buf[amtread]= 0;
 if (memcmp(vb2.buf," select=",8)) Psyntax("syscall reply mismatch");
 if (vb2.buf[8] == 'E') {
  int e;
  e= Perrno(vb2.buf+8);
  P_updatetime();
  errno= e;
  return -1;
 }
  r= strtoul(vb2.buf+8,&ep,10);
  if (*ep && *ep!=' ') Psyntax("return value not E* or positive number");
  vb2.used= ep - (char*)vb2.buf;
	Parg("rfds"); Pfdset(rfds,max); 
	Parg("wfds"); Pfdset(wfds,max); 
	Parg("efds"); Pfdset(efds,max); 
 assert(vb2.used <= amtread);
 if (vb2.used != amtread) Psyntax("junk at end of line");
 P_updatetime();
 return r;
}
#ifdef HAVE_POLL
int Hpoll(	struct pollfd *fds , int nfds , int timeout 	) {
 int r, amtread;
 char *ep;
 Qpoll(	fds , nfds , timeout 	);
 if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
 fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
 Tensurereportfile();
 fprintf(Treportfile,"%s",vb2.buf);
 amtread= strlen(vb2.buf);
 if (amtread<=0 || vb2.buf[--amtread]!='\n')
  Psyntax("badly formed line");
 vb2.buf[amtread]= 0;
 if (memcmp(vb2.buf," poll=",6)) Psyntax("syscall reply mismatch");
 if (vb2.buf[6] == 'E') {
  int e;
  e= Perrno(vb2.buf+6);
  P_updatetime();
  errno= e;
  return -1;
 }
  r= strtoul(vb2.buf+6,&ep,10);
  if (*ep && *ep!=' ') Psyntax("return value not E* or positive number");
  vb2.used= ep - (char*)vb2.buf;
        Parg("fds"); Ppollfds(fds,nfds); 
 assert(vb2.used <= amtread);
 if (vb2.used != amtread) Psyntax("junk at end of line");
 P_updatetime();
 return r;
}
#endif
int Hsocket(	int domain , int type , int protocol 	) {
 int r, amtread;
 char *ep;
	Tmust("socket","domain",domain==AF_INET); 
  Tmust("socket","type",type==SOCK_STREAM || type==SOCK_DGRAM); 
 Qsocket(	 type 	);
 if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
 fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
 Tensurereportfile();
 fprintf(Treportfile,"%s",vb2.buf);
 amtread= strlen(vb2.buf);
 if (amtread<=0 || vb2.buf[--amtread]!='\n')
  Psyntax("badly formed line");
 vb2.buf[amtread]= 0;
 if (memcmp(vb2.buf," socket=",8)) Psyntax("syscall reply mismatch");
 if (vb2.buf[8] == 'E') {
  int e;
  e= Perrno(vb2.buf+8);
  P_updatetime();
  errno= e;
  return -1;
 }
  r= strtoul(vb2.buf+8,&ep,10);
  if (*ep && *ep!=' ') Psyntax("return value not E* or positive number");
  vb2.used= ep - (char*)vb2.buf;
 assert(vb2.used <= amtread);
 if (vb2.used != amtread) Psyntax("junk at end of line");
 P_updatetime();
 return r;
}
int Hfcntl(	int fd , int cmd , ... 	) {
 int r, amtread;
	va_list al; long arg; 
  Tmust("fcntl","cmd",cmd==F_SETFL || cmd==F_GETFL);
  if (cmd == F_SETFL) {
    va_start(al,cmd); arg= va_arg(al,long); va_end(al);
  } else {
    arg= 0;
  } 
 Qfcntl(	fd , cmd , arg 	);
 if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
 fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
 Tensurereportfile();
 fprintf(Treportfile,"%s",vb2.buf);
 amtread= strlen(vb2.buf);
 if (amtread<=0 || vb2.buf[--amtread]!='\n')
  Psyntax("badly formed line");
 vb2.buf[amtread]= 0;
 if (memcmp(vb2.buf," fcntl=",7)) Psyntax("syscall reply mismatch");
 if (vb2.buf[7] == 'E') {
  int e;
  e= Perrno(vb2.buf+7);
  P_updatetime();
  errno= e;
  return -1;
 }
  r= 0;
  if (cmd == F_GETFL) {
    if (!memcmp(vb2.buf+7,"O_NONBLOCK|...",14)) {
      r= O_NONBLOCK;
      vb2.used= 7+14;
    } else if (!memcmp(vb2.buf+7,"~O_NONBLOCK&...",15)) {
      vb2.used= 7+15;
    } else {
      Psyntax("fcntl flags not O_NONBLOCK|... or ~O_NONBLOCK&...");
    }
  } else if (cmd == F_SETFL) {
  if (memcmp(vb2.buf+7,"OK",2)) Psyntax("success/fail not E* or OK");
  vb2.used= 7+2;
  r= 0;
  } else {
    Psyntax("fcntl not F_GETFL or F_SETFL");
  }
 assert(vb2.used <= amtread);
 if (vb2.used != amtread) Psyntax("junk at end of line");
 P_updatetime();
 return r;
}
int Hconnect(	int fd , const struct sockaddr *addr , int addrlen 	) {
 int r, amtread;
 Qconnect(	fd , addr , addrlen 	);
 if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
 fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
 Tensurereportfile();
 fprintf(Treportfile,"%s",vb2.buf);
 amtread= strlen(vb2.buf);
 if (amtread<=0 || vb2.buf[--amtread]!='\n')
  Psyntax("badly formed line");
 vb2.buf[amtread]= 0;
 if (memcmp(vb2.buf," connect=",9)) Psyntax("syscall reply mismatch");
 if (vb2.buf[9] == 'E') {
  int e;
  e= Perrno(vb2.buf+9);
  P_updatetime();
  errno= e;
  return -1;
 }
  if (memcmp(vb2.buf+9,"OK",2)) Psyntax("success/fail not E* or OK");
  vb2.used= 9+2;
  r= 0;
 assert(vb2.used <= amtread);
 if (vb2.used != amtread) Psyntax("junk at end of line");
 P_updatetime();
 return r;
}
int Hbind(	int fd , const struct sockaddr *addr , int addrlen 	) {
 int r, amtread;
 Qbind(	fd , addr , addrlen 	);
 if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
 fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
 Tensurereportfile();
 fprintf(Treportfile,"%s",vb2.buf);
 amtread= strlen(vb2.buf);
 if (amtread<=0 || vb2.buf[--amtread]!='\n')
  Psyntax("badly formed line");
 vb2.buf[amtread]= 0;
 if (memcmp(vb2.buf," bind=",6)) Psyntax("syscall reply mismatch");
 if (vb2.buf[6] == 'E') {
  int e;
  e= Perrno(vb2.buf+6);
  P_updatetime();
  errno= e;
  return -1;
 }
  if (memcmp(vb2.buf+6,"OK",2)) Psyntax("success/fail not E* or OK");
  vb2.used= 6+2;
  r= 0;
 assert(vb2.used <= amtread);
 if (vb2.used != amtread) Psyntax("junk at end of line");
 P_updatetime();
 return r;
}
int Hlisten(	int fd , int backlog 	) {
 int r, amtread;
 Qlisten(	fd , backlog 	);
 if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
 fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
 Tensurereportfile();
 fprintf(Treportfile,"%s",vb2.buf);
 amtread= strlen(vb2.buf);
 if (amtread<=0 || vb2.buf[--amtread]!='\n')
  Psyntax("badly formed line");
 vb2.buf[amtread]= 0;
 if (memcmp(vb2.buf," listen=",8)) Psyntax("syscall reply mismatch");
 if (vb2.buf[8] == 'E') {
  int e;
  e= Perrno(vb2.buf+8);
  P_updatetime();
  errno= e;
  return -1;
 }
  if (memcmp(vb2.buf+8,"OK",2)) Psyntax("success/fail not E* or OK");
  vb2.used= 8+2;
  r= 0;
 assert(vb2.used <= amtread);
 if (vb2.used != amtread) Psyntax("junk at end of line");
 P_updatetime();
 return r;
}
int Hclose(	int fd 	) {
 int r, amtread;
 Qclose(	fd 	);
 if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
 fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
 Tensurereportfile();
 fprintf(Treportfile,"%s",vb2.buf);
 amtread= strlen(vb2.buf);
 if (amtread<=0 || vb2.buf[--amtread]!='\n')
  Psyntax("badly formed line");
 vb2.buf[amtread]= 0;
 if (memcmp(vb2.buf," close=",7)) Psyntax("syscall reply mismatch");
 if (vb2.buf[7] == 'E') {
  int e;
  e= Perrno(vb2.buf+7);
  P_updatetime();
  errno= e;
  return -1;
 }
  if (memcmp(vb2.buf+7,"OK",2)) Psyntax("success/fail not E* or OK");
  vb2.used= 7+2;
  r= 0;
 assert(vb2.used <= amtread);
 if (vb2.used != amtread) Psyntax("junk at end of line");
 P_updatetime();
 return r;
}
int Hsendto(	int fd , const void *msg , int msglen , unsigned int flags , const struct sockaddr *addr , int addrlen 	) {
 int r, amtread;
 char *ep;
	Tmust("sendto","flags",flags==0); 
 Qsendto(	fd , msg , msglen , addr , addrlen 	);
 if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
 fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
 Tensurereportfile();
 fprintf(Treportfile,"%s",vb2.buf);
 amtread= strlen(vb2.buf);
 if (amtread<=0 || vb2.buf[--amtread]!='\n')
  Psyntax("badly formed line");
 vb2.buf[amtread]= 0;
 if (memcmp(vb2.buf," sendto=",8)) Psyntax("syscall reply mismatch");
 if (vb2.buf[8] == 'E') {
  int e;
  e= Perrno(vb2.buf+8);
  P_updatetime();
  errno= e;
  return -1;
 }
  r= strtoul(vb2.buf+8,&ep,10);
  if (*ep && *ep!=' ') Psyntax("return value not E* or positive number");
  vb2.used= ep - (char*)vb2.buf;
 assert(vb2.used <= amtread);
 if (vb2.used != amtread) Psyntax("junk at end of line");
 P_updatetime();
 return r;
}
int Hrecvfrom(	int fd , void *buf , int buflen , unsigned int flags , struct sockaddr *addr , int *addrlen 	) {
 int r, amtread;
	Tmust("recvfrom","flags",flags==0); 
	Tmust("recvfrom","*addrlen",*addrlen>=sizeof(struct sockaddr_in)); 
 Qrecvfrom(	fd , buflen , *addrlen 	);
 if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
 fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
 Tensurereportfile();
 fprintf(Treportfile,"%s",vb2.buf);
 amtread= strlen(vb2.buf);
 if (amtread<=0 || vb2.buf[--amtread]!='\n')
  Psyntax("badly formed line");
 vb2.buf[amtread]= 0;
 if (memcmp(vb2.buf," recvfrom=",10)) Psyntax("syscall reply mismatch");
 if (vb2.buf[10] == 'E') {
  int e;
  e= Perrno(vb2.buf+10);
  P_updatetime();
  errno= e;
  return -1;
 }
  if (memcmp(vb2.buf+10,"OK",2)) Psyntax("success/fail not E* or OK");
  vb2.used= 10+2;
  r= 0;
	Parg("addr"); Paddr(addr,addrlen); 
 assert(vb2.used <= amtread);
 if (vb2.used != amtread) Psyntax("junk at end of line");
	r= Pbytes(buf,buflen); 
 P_updatetime();
 return r;
}
int Hread(	int fd , void *buf , size_t buflen 	) {
 int r, amtread;
 Qread(	fd , buflen 	);
 if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
 fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
 Tensurereportfile();
 fprintf(Treportfile,"%s",vb2.buf);
 amtread= strlen(vb2.buf);
 if (amtread<=0 || vb2.buf[--amtread]!='\n')
  Psyntax("badly formed line");
 vb2.buf[amtread]= 0;
 if (memcmp(vb2.buf," read=",6)) Psyntax("syscall reply mismatch");
 if (vb2.buf[6] == 'E') {
  int e;
  e= Perrno(vb2.buf+6);
  P_updatetime();
  errno= e;
  return -1;
 }
  if (memcmp(vb2.buf+6,"OK",2)) Psyntax("success/fail not E* or OK");
  vb2.used= 6+2;
  r= 0;
 assert(vb2.used <= amtread);
 if (vb2.used != amtread) Psyntax("junk at end of line");
	r= Pbytes(buf,buflen); 
 P_updatetime();
 return r;
}
int Hwrite(	int fd , const void *buf , size_t len 	) {
 int r, amtread;
 char *ep;
 Qwrite(	fd , buf , len 	);
 if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
 fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
 Tensurereportfile();
 fprintf(Treportfile,"%s",vb2.buf);
 amtread= strlen(vb2.buf);
 if (amtread<=0 || vb2.buf[--amtread]!='\n')
  Psyntax("badly formed line");
 vb2.buf[amtread]= 0;
 if (memcmp(vb2.buf," write=",7)) Psyntax("syscall reply mismatch");
 if (vb2.buf[7] == 'E') {
  int e;
  e= Perrno(vb2.buf+7);
  P_updatetime();
  errno= e;
  return -1;
 }
  r= strtoul(vb2.buf+7,&ep,10);
  if (*ep && *ep!=' ') Psyntax("return value not E* or positive number");
  vb2.used= ep - (char*)vb2.buf;
 assert(vb2.used <= amtread);
 if (vb2.used != amtread) Psyntax("junk at end of line");
 P_updatetime();
 return r;
}
Commit	Line	Data
c7340170	1	#include <assert.h>
	2	#include <string.h>
	3	#include <errno.h>
	4	#include <stdlib.h>
	5	#include <sys/types.h>
	6	#include <sys/socket.h>
	7	#include <netinet/in.h>
	8	#include <arpa/inet.h>
4b30caad	9	#include <sys/time.h>
c7340170	10	#include <unistd.h>
	11	#include <fcntl.h>
	12	#include "harness.h"
	13	static FILE Tinputfile, Treportfile;
	14	static vbuf vb2;
	15	extern void Tshutdown(void) {
	16	adns__vbuf_free(&vb2);
	17	}
	18	static void Tensurereportfile(void) {
	19	const char *fdstr;
	20	int fd;
	21	if (Treportfile) return;
	22	Treportfile= stderr;
	23	fdstr= getenv("ADNS_TEST_REPORT_FD"); if (!fdstr) return;
	24	fd= atoi(fdstr);
	25	Treportfile= fdopen(fd,"a"); if (!Treportfile) Tfailed("fdopen ADNS_TEST_REPORT_FD");
	26	}
	27	static void Psyntax(const char *where) {
	28	fprintf(stderr,"adns test harness: syntax error in test log input file: %s\n",where);
	29	exit(-1);
	30	}
	31	static void Pcheckinput(void) {
	32	if (ferror(Tinputfile)) Tfailed("read test log input file");
	33	if (feof(Tinputfile)) Psyntax("eof at syscall reply");
	34	}
0366bd10	35	void Tensurerecordfile(void) {
c7340170	36	const char *fdstr;
	37	int fd;
	38	int chars;
	39	unsigned long sec, usec;
	40	if (Tinputfile) return;
	41	Tinputfile= stdin;
	42	fdstr= getenv("ADNS_TEST_IN_FD");
	43	if (fdstr) {
	44	fd= atoi(fdstr);
	45	Tinputfile= fdopen(fd,"r"); if (!Tinputfile) Tfailed("fdopen ADNS_TEST_IN_FD");
	46	}
	47	setvbuf(Tinputfile,0,_IONBF,0);
	48	if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
	49	fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
	50	chars= -1;
	51	sscanf(vb2.buf," start %lu.%lu%n",&sec,&usec,&chars);
	52	if (chars==-1) Psyntax("start time invalid");
	53	currenttime.tv_sec= sec;
	54	currenttime.tv_usec= usec;
	55	if (vb2.buf[chars] != '\n') Psyntax("not newline after start time");
	56	}
	57	static void Parg(const char *argname) {
	58	int l;
	59	if (vb2.buf[vb2.used++] != ' ') Psyntax("not a space before argument");
	60	l= strlen(argname);
	61	if (memcmp(vb2.buf+vb2.used,argname,l)) Psyntax("argument name wrong");
	62	vb2.used+= l;
	63	if (vb2.buf[vb2.used++] != '=') Psyntax("not = after argument name");
	64	}
	65	static int Pstring_maybe(const char *string) {
	66	int l;
	67	l= strlen(string);
	68	if (memcmp(vb2.buf+vb2.used,string,l)) return 0;
	69	vb2.used+= l;
	70	return 1;
	71	}
	72	static void Pstring(const char string, const char emsg) {
	73	if (Pstring_maybe(string)) return;
	74	Psyntax(emsg);
	75	}
	76	static int Perrno(const char *stuff) {
	77	const struct Terrno *te;
	78	int r;
	79	char *ep;
	80	for (te= Terrnos; te->n && strcmp(te->n,stuff); te++);
	81	if (te->n) return te->v;
	82	r= strtoul(stuff+2,&ep,10);
	83	if (*ep) Psyntax("errno value not recognised, not numeric");
	84	return r;
	85	}
	86	static void P_updatetime(void) {
	87	int chars;
	88	unsigned long sec, usec;
	89	if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
	90	fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
	91	chars= -1;
	92	sscanf(vb2.buf," +%lu.%lu%n",&sec,&usec,&chars);
	93	if (chars==-1) Psyntax("update time invalid");
	94	currenttime.tv_sec+= sec;
	95	currenttime.tv_usec+= usec;
	96	if (currenttime.tv_usec > 1000000) {
	97	currenttime.tv_sec++;
	98	currenttime.tv_usec -= 1000000;
	99	}
100	if (vb2.buf[chars] != '\n') Psyntax("not newline after update time");
101	}
102	static void Pfdset(fd_set *set, int max) {
103	int r, c;
104	char *ep;
105	if (vb2.buf[vb2.used++] != '[') Psyntax("fd set start not [");
106	FD_ZERO(set);
107	if (vb2.buf[vb2.used] == ']') { vb2.used++; return; }
108	for (;;) {
109	r= strtoul(vb2.buf+vb2.used,&ep,10);
110	if (r>=max) Psyntax("fd set member > max");
111	if (ep == (char*)vb2.buf+vb2.used) Psyntax("empty entry in fd set");
112	FD_SET(r,set);
113	vb2.used= ep - (char*)vb2.buf;
114	c= vb2.buf[vb2.used++];
115	if (c == ']') break;
116	if (c != ',') Psyntax("fd set separator not ,");
117	}
118	}
119	#ifdef HAVE_POLL
120	static int Ppollfdevents(void) {
121	int events;
122	if (Pstring_maybe("0")) return 0;
123	events= 0;
124	if (Pstring_maybe("POLLIN")) {
125	events \|= POLLIN;
126	if (!Pstring_maybe("\|")) return events;
127	}
128	if (Pstring_maybe("POLLOUT")) {
129	events \|= POLLOUT;
130	if (!Pstring_maybe("\|")) return events;
131	}
132	Pstring("POLLPRI","pollfdevents PRI?");
133	return events;
134	}
135	static void Ppollfds(struct pollfd *fds, int nfds) {
136	int i;
137	char *ep;
138	const char *comma= "";
139	if (vb2.buf[vb2.used++] != '[') Psyntax("pollfds start not [");
140	for (i=0; i<nfds; i++) {
141	Pstring("{fd=","{fd= in pollfds");
142	fds->fd= strtoul(vb2.buf+vb2.used,&ep,10);
143	vb2.used= ep - (char*)vb2.buf;
144	Pstring(", events=",", events= in pollfds");
145	fds->events= Ppollfdevents();
146	Pstring(", revents=",", revents= in pollfds");
147	fds->revents= Ppollfdevents();
148	Pstring("}","} in pollfds");
149	Pstring(comma,"separator in pollfds");
150	comma= ", ";
151	}
152	if (vb2.buf[vb2.used++] != ']') Psyntax("pollfds end not ]");
153	}
154	#endif
155	static void Paddr(struct sockaddr addr, int lenr) {
156	struct sockaddr_in sa= (struct sockaddr_in)addr;
157	char p, ep;
158	long ul;
159	assert(lenr >= sizeof(sa));
160	p= strchr(vb2.buf+vb2.used,':');
161	if (!p) Psyntax("no port on address");
162	*p++= 0;
163	memset(sa,0,sizeof(*sa));
164	sa->sin_family= AF_INET;
165	if (!inet_aton(vb2.buf+vb2.used,&sa->sin_addr)) Psyntax("invalid address");
166	ul= strtoul(p,&ep,10);
167	if (ep && ep != ' ') Psyntax("invalid port (bad syntax)");
168	if (ul >= 65536) Psyntax("port too large");
169	sa->sin_port= htons(ul);
170	lenr= sizeof(sa);
171	vb2.used= ep - (char*)vb2.buf;
172	}
173	static int Pbytes(byte *buf, int maxlen) {
174	static const char hexdigits[]= "0123456789abcdef";
175	int c, v, done;
176	const char *pf;
177	done= 0;
178	for (;;) {
179	c= getc(Tinputfile); Pcheckinput();
180	if (c=='\n' \|\| c==' ' \|\| c=='\t') continue;
181	if (c=='.') break;
182	pf= strchr(hexdigits,c); if (!pf) Psyntax("invalid first hex digit");
183	v= (pf-hexdigits)<<4;
184	c= getc(Tinputfile); Pcheckinput();
185	pf= strchr(hexdigits,c); if (!pf) Psyntax("invalid second hex digit");
186	v \|= (pf-hexdigits);
187	if (maxlen<=0) Psyntax("buffer overflow in bytes");
188	*buf++= v;
189	maxlen--; done++;
190	}
191	for (;;) {
192	c= getc(Tinputfile); Pcheckinput();
193	if (c=='\n') return done;
194	}
195	}
196	void Q_vb(void) {
197	int r;
198	const char *nl;
0366bd10	199	Tensurerecordfile();
c7340170	200	if (!adns__vbuf_ensure(&vb2,vb.used+2)) Tnomem();
	201	r= fread(vb2.buf,1,vb.used+2,Tinputfile);
	202	if (feof(Tinputfile)) {
	203	fprintf(stderr,"adns test harness: input ends prematurely; program did:\n %.*s\n",
	204	vb.used,vb.buf);
	205	exit(-1);
	206	}
	207	Pcheckinput();
	208	if (vb2.buf[0] != ' ') Psyntax("not space before call");
	209	if (memcmp(vb.buf,vb2.buf+1,vb.used) \|\|
	210	vb2.buf[vb.used+1] != '\n') {
	211	fprintf(stderr,
	212	"adns test harness: program did unexpected:\n %.*s\n"
	213	"was expecting:\n %.*s\n",
	214	vb.used,vb.buf, vb.used,vb2.buf+1);
	215	exit(1);
	216	}
	217	Tensurereportfile();
	218	nl= memchr(vb.buf,'\n',vb.used);
	219	fprintf(Treportfile," %.s\n", (int)(nl ? nl - (const char)vb.buf : vb.used), vb.buf);
	220	}
	221	int Hselect( int max , fd_set rfds , fd_set wfds , fd_set efds , struct timeval to ) {
	222	int r, amtread;
	223	char *ep;
	224	Qselect( max , rfds , wfds , efds , to );
	225	if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
	226	fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
	227	Tensurereportfile();
	228	fprintf(Treportfile,"%s",vb2.buf);
	229	amtread= strlen(vb2.buf);
	230	if (amtread<=0 \|\| vb2.buf[--amtread]!='\n')
	231	Psyntax("badly formed line");
	232	vb2.buf[amtread]= 0;
	233	if (memcmp(vb2.buf," select=",8)) Psyntax("syscall reply mismatch");
	234	if (vb2.buf[8] == 'E') {
	235	int e;
	236	e= Perrno(vb2.buf+8);
	237	P_updatetime();
	238	errno= e;
	239	return -1;
	240	}
	241	r= strtoul(vb2.buf+8,&ep,10);
	242	if (ep && ep!=' ') Psyntax("return value not E* or positive number");
	243	vb2.used= ep - (char*)vb2.buf;
	244	Parg("rfds"); Pfdset(rfds,max);
	245	Parg("wfds"); Pfdset(wfds,max);
	246	Parg("efds"); Pfdset(efds,max);
	247	assert(vb2.used <= amtread);
	248	if (vb2.used != amtread) Psyntax("junk at end of line");
	249	P_updatetime();
	250	return r;
	251	}
	252	#ifdef HAVE_POLL
	253	int Hpoll( struct pollfd *fds , int nfds , int timeout ) {
	254	int r, amtread;
	255	char *ep;
	256	Qpoll( fds , nfds , timeout );
	257	if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
	258	fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
	259	Tensurereportfile();
	260	fprintf(Treportfile,"%s",vb2.buf);
	261	amtread= strlen(vb2.buf);
	262	if (amtread<=0 \|\| vb2.buf[--amtread]!='\n')
	263	Psyntax("badly formed line");
264	vb2.buf[amtread]= 0;
265	if (memcmp(vb2.buf," poll=",6)) Psyntax("syscall reply mismatch");
266	if (vb2.buf[6] == 'E') {
267	int e;
268	e= Perrno(vb2.buf+6);
269	P_updatetime();
270	errno= e;
271	return -1;
272	}
273	r= strtoul(vb2.buf+6,&ep,10);
274	if (ep && ep!=' ') Psyntax("return value not E* or positive number");
275	vb2.used= ep - (char*)vb2.buf;
276	Parg("fds"); Ppollfds(fds,nfds);
277	assert(vb2.used <= amtread);
278	if (vb2.used != amtread) Psyntax("junk at end of line");
279	P_updatetime();
280	return r;
281	}
282	#endif
283	int Hsocket( int domain , int type , int protocol ) {
284	int r, amtread;
285	char *ep;
286	Tmust("socket","domain",domain==AF_INET);
287	Tmust("socket","type",type==SOCK_STREAM \|\| type==SOCK_DGRAM);
288	Qsocket( type );
289	if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
290	fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
291	Tensurereportfile();
292	fprintf(Treportfile,"%s",vb2.buf);
293	amtread= strlen(vb2.buf);
294	if (amtread<=0 \|\| vb2.buf[--amtread]!='\n')
295	Psyntax("badly formed line");
296	vb2.buf[amtread]= 0;
297	if (memcmp(vb2.buf," socket=",8)) Psyntax("syscall reply mismatch");
298	if (vb2.buf[8] == 'E') {
299	int e;
300	e= Perrno(vb2.buf+8);
301	P_updatetime();
302	errno= e;
303	return -1;
304	}
305	r= strtoul(vb2.buf+8,&ep,10);
306	if (ep && ep!=' ') Psyntax("return value not E* or positive number");
307	vb2.used= ep - (char*)vb2.buf;
308	assert(vb2.used <= amtread);
309	if (vb2.used != amtread) Psyntax("junk at end of line");
310	P_updatetime();
311	return r;
312	}
313	int Hfcntl( int fd , int cmd , ... ) {
314	int r, amtread;
315	va_list al; long arg;
316	Tmust("fcntl","cmd",cmd==F_SETFL \|\| cmd==F_GETFL);
317	if (cmd == F_SETFL) {
318	va_start(al,cmd); arg= va_arg(al,long); va_end(al);
319	} else {
320	arg= 0;
321	}
322	Qfcntl( fd , cmd , arg );
323	if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
324	fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
325	Tensurereportfile();
326	fprintf(Treportfile,"%s",vb2.buf);
327	amtread= strlen(vb2.buf);
328	if (amtread<=0 \|\| vb2.buf[--amtread]!='\n')
329	Psyntax("badly formed line");
330	vb2.buf[amtread]= 0;
331	if (memcmp(vb2.buf," fcntl=",7)) Psyntax("syscall reply mismatch");
332	if (vb2.buf[7] == 'E') {
333	int e;
334	e= Perrno(vb2.buf+7);
335	P_updatetime();
336	errno= e;
337	return -1;
338	}
339	r= 0;
340	if (cmd == F_GETFL) {
341	if (!memcmp(vb2.buf+7,"O_NONBLOCK\|...",14)) {
342	r= O_NONBLOCK;
343	vb2.used= 7+14;
344	} else if (!memcmp(vb2.buf+7,"~O_NONBLOCK&...",15)) {
345	vb2.used= 7+15;
346	} else {
347	Psyntax("fcntl flags not O_NONBLOCK\|... or ~O_NONBLOCK&...");
348	}
349	} else if (cmd == F_SETFL) {
350	if (memcmp(vb2.buf+7,"OK",2)) Psyntax("success/fail not E* or OK");
351	vb2.used= 7+2;
352	r= 0;
353	} else {
354	Psyntax("fcntl not F_GETFL or F_SETFL");
355	}
356	assert(vb2.used <= amtread);
357	if (vb2.used != amtread) Psyntax("junk at end of line");
358	P_updatetime();
359	return r;
360	}
361	int Hconnect( int fd , const struct sockaddr *addr , int addrlen ) {
362	int r, amtread;
363	Qconnect( fd , addr , addrlen );
364	if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
365	fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
366	Tensurereportfile();
367	fprintf(Treportfile,"%s",vb2.buf);
368	amtread= strlen(vb2.buf);
369	if (amtread<=0 \|\| vb2.buf[--amtread]!='\n')
370	Psyntax("badly formed line");
371	vb2.buf[amtread]= 0;
372	if (memcmp(vb2.buf," connect=",9)) Psyntax("syscall reply mismatch");
373	if (vb2.buf[9] == 'E') {
374	int e;
375	e= Perrno(vb2.buf+9);
376	P_updatetime();
377	errno= e;
378	return -1;
379	}
380	if (memcmp(vb2.buf+9,"OK",2)) Psyntax("success/fail not E* or OK");
381	vb2.used= 9+2;
382	r= 0;
383	assert(vb2.used <= amtread);
384	if (vb2.used != amtread) Psyntax("junk at end of line");
385	P_updatetime();
386	return r;
387	}
0366bd10	388	int Hbind( int fd , const struct sockaddr *addr , int addrlen ) {
	389	int r, amtread;
	390	Qbind( fd , addr , addrlen );
	391	if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
	392	fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
	393	Tensurereportfile();
	394	fprintf(Treportfile,"%s",vb2.buf);
	395	amtread= strlen(vb2.buf);
	396	if (amtread<=0 \|\| vb2.buf[--amtread]!='\n')
	397	Psyntax("badly formed line");
	398	vb2.buf[amtread]= 0;
	399	if (memcmp(vb2.buf," bind=",6)) Psyntax("syscall reply mismatch");
	400	if (vb2.buf[6] == 'E') {
	401	int e;
	402	e= Perrno(vb2.buf+6);
	403	P_updatetime();
	404	errno= e;
	405	return -1;
	406	}
	407	if (memcmp(vb2.buf+6,"OK",2)) Psyntax("success/fail not E* or OK");
	408	vb2.used= 6+2;
	409	r= 0;
	410	assert(vb2.used <= amtread);
	411	if (vb2.used != amtread) Psyntax("junk at end of line");
	412	P_updatetime();
	413	return r;
	414	}
	415	int Hlisten( int fd , int backlog ) {
	416	int r, amtread;
	417	Qlisten( fd , backlog );
	418	if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
	419	fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
	420	Tensurereportfile();
	421	fprintf(Treportfile,"%s",vb2.buf);
	422	amtread= strlen(vb2.buf);
	423	if (amtread<=0 \|\| vb2.buf[--amtread]!='\n')
	424	Psyntax("badly formed line");
	425	vb2.buf[amtread]= 0;
	426	if (memcmp(vb2.buf," listen=",8)) Psyntax("syscall reply mismatch");
	427	if (vb2.buf[8] == 'E') {
	428	int e;
	429	e= Perrno(vb2.buf+8);
	430	P_updatetime();
	431	errno= e;
	432	return -1;
	433	}
	434	if (memcmp(vb2.buf+8,"OK",2)) Psyntax("success/fail not E* or OK");
	435	vb2.used= 8+2;
	436	r= 0;
	437	assert(vb2.used <= amtread);
	438	if (vb2.used != amtread) Psyntax("junk at end of line");
	439	P_updatetime();
	440	return r;
	441	}
c7340170	442	int Hclose( int fd ) {
	443	int r, amtread;
	444	Qclose( fd );
	445	if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
	446	fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
	447	Tensurereportfile();
	448	fprintf(Treportfile,"%s",vb2.buf);
	449	amtread= strlen(vb2.buf);
	450	if (amtread<=0 \|\| vb2.buf[--amtread]!='\n')
	451	Psyntax("badly formed line");
	452	vb2.buf[amtread]= 0;
	453	if (memcmp(vb2.buf," close=",7)) Psyntax("syscall reply mismatch");
	454	if (vb2.buf[7] == 'E') {
	455	int e;
	456	e= Perrno(vb2.buf+7);
	457	P_updatetime();
	458	errno= e;
	459	return -1;
	460	}
	461	if (memcmp(vb2.buf+7,"OK",2)) Psyntax("success/fail not E* or OK");
	462	vb2.used= 7+2;
	463	r= 0;
	464	assert(vb2.used <= amtread);
	465	if (vb2.used != amtread) Psyntax("junk at end of line");
	466	P_updatetime();
	467	return r;
	468	}
	469	int Hsendto( int fd , const void msg , int msglen , unsigned int flags , const struct sockaddr addr , int addrlen ) {
	470	int r, amtread;
	471	char *ep;
	472	Tmust("sendto","flags",flags==0);
	473	Qsendto( fd , msg , msglen , addr , addrlen );
	474	if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
	475	fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
	476	Tensurereportfile();
	477	fprintf(Treportfile,"%s",vb2.buf);
	478	amtread= strlen(vb2.buf);
	479	if (amtread<=0 \|\| vb2.buf[--amtread]!='\n')
	480	Psyntax("badly formed line");
	481	vb2.buf[amtread]= 0;
	482	if (memcmp(vb2.buf," sendto=",8)) Psyntax("syscall reply mismatch");
	483	if (vb2.buf[8] == 'E') {
	484	int e;
	485	e= Perrno(vb2.buf+8);
	486	P_updatetime();
	487	errno= e;
	488	return -1;
	489	}
	490	r= strtoul(vb2.buf+8,&ep,10);
	491	if (ep && ep!=' ') Psyntax("return value not E* or positive number");
	492	vb2.used= ep - (char*)vb2.buf;
	493	assert(vb2.used <= amtread);
	494	if (vb2.used != amtread) Psyntax("junk at end of line");
	495	P_updatetime();
	496	return r;
	497	}
	498	int Hrecvfrom( int fd , void buf , int buflen , unsigned int flags , struct sockaddr addr , int *addrlen ) {
	499	int r, amtread;
	500	Tmust("recvfrom","flags",flags==0);
	501	Tmust("recvfrom","addrlen",addrlen>=sizeof(struct sockaddr_in));
	502	Qrecvfrom( fd , buflen , *addrlen );
	503	if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
	504	fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
	505	Tensurereportfile();
506	fprintf(Treportfile,"%s",vb2.buf);
507	amtread= strlen(vb2.buf);
508	if (amtread<=0 \|\| vb2.buf[--amtread]!='\n')
509	Psyntax("badly formed line");
510	vb2.buf[amtread]= 0;
511	if (memcmp(vb2.buf," recvfrom=",10)) Psyntax("syscall reply mismatch");
512	if (vb2.buf[10] == 'E') {
513	int e;
514	e= Perrno(vb2.buf+10);
515	P_updatetime();
516	errno= e;
517	return -1;
518	}
519	if (memcmp(vb2.buf+10,"OK",2)) Psyntax("success/fail not E* or OK");
520	vb2.used= 10+2;
521	r= 0;
522	Parg("addr"); Paddr(addr,addrlen);
523	assert(vb2.used <= amtread);
524	if (vb2.used != amtread) Psyntax("junk at end of line");
525	r= Pbytes(buf,buflen);
526	P_updatetime();
527	return r;
528	}
529	int Hread( int fd , void *buf , size_t buflen ) {
530	int r, amtread;
531	Qread( fd , buflen );
532	if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
533	fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
534	Tensurereportfile();
535	fprintf(Treportfile,"%s",vb2.buf);
536	amtread= strlen(vb2.buf);
537	if (amtread<=0 \|\| vb2.buf[--amtread]!='\n')
538	Psyntax("badly formed line");
539	vb2.buf[amtread]= 0;
540	if (memcmp(vb2.buf," read=",6)) Psyntax("syscall reply mismatch");
541	if (vb2.buf[6] == 'E') {
542	int e;
543	e= Perrno(vb2.buf+6);
544	P_updatetime();
545	errno= e;
546	return -1;
547	}
548	if (memcmp(vb2.buf+6,"OK",2)) Psyntax("success/fail not E* or OK");
549	vb2.used= 6+2;
550	r= 0;
551	assert(vb2.used <= amtread);
552	if (vb2.used != amtread) Psyntax("junk at end of line");
553	r= Pbytes(buf,buflen);
554	P_updatetime();
555	return r;
556	}
557	int Hwrite( int fd , const void *buf , size_t len ) {
558	int r, amtread;
559	char *ep;
560	Qwrite( fd , buf , len );
561	if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
562	fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
563	Tensurereportfile();
564	fprintf(Treportfile,"%s",vb2.buf);
565	amtread= strlen(vb2.buf);
566	if (amtread<=0 \|\| vb2.buf[--amtread]!='\n')
567	Psyntax("badly formed line");
568	vb2.buf[amtread]= 0;
569	if (memcmp(vb2.buf," write=",7)) Psyntax("syscall reply mismatch");
570	if (vb2.buf[7] == 'E') {
571	int e;
572	e= Perrno(vb2.buf+7);
573	P_updatetime();
574	errno= e;
575	return -1;
576	}
577	r= strtoul(vb2.buf+7,&ep,10);
578	if (ep && ep!=' ') Psyntax("return value not E* or positive number");
579	vb2.used= ep - (char*)vb2.buf;
580	assert(vb2.used <= amtread);
581	if (vb2.used != amtread) Psyntax("junk at end of line");
582	P_updatetime();
583	return r;
584	}