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Improve the state machine.

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This commit is contained in:
Ben Laurie 2001-02-06 13:13:31 +00:00
parent 9eea2be6f1
commit 171cc53a96
1 changed files with 34 additions and 13 deletions
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47
demos/state_machine/state_machine.c
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@ -191,6 +191,9 @@ int SSLStateMachine_read_extract(SSLStateMachine *pMachine,
fprintf(stderr,"SSL_read wants more data\n");
return 0;
}
SSLStateMachine_print_error(pMachine,"SSL_read error");
exit(8);
}
fprintf(stderr,"%d bytes of decrypted data read from state machine\n",n);
@ -289,6 +292,8 @@ int main(int argc,char **argv)
int nFD;
const char *szCertificateFile;
const char *szKeyFile;
char rbuf[1];
int nrbuf=0;
if(argc != 4)
{
@ -321,6 +326,14 @@ int main(int argc,char **argv)
/* Select socket for input */
FD_SET(nFD,&rfds);
/* check whether there's decrypted data */
if(!nrbuf)
nrbuf=SSLStateMachine_read_extract(pMachine,rbuf,1);
/* if there's decrypted data, check whether we can write it */
if(nrbuf)
FD_SET(1,&wfds);
/* Select socket for output */
if(SSLStateMachine_write_can_extract(pMachine))
FD_SET(nFD,&wfds);
@ -346,21 +359,29 @@ int main(int argc,char **argv)
SSLStateMachine_read_inject(pMachine,buf,n);
}
/* FIXME: we should only extract if stdout is ready */
n=SSLStateMachine_read_extract(pMachine,buf,sizeof buf);
if(n < 0)
/* stdout is ready for output (and hence we have some to send it) */
if(FD_ISSET(1,&wfds))
{
SSLStateMachine_print_error(pMachine,"read extract failed");
break;
}
assert(n >= 0);
if(n > 0)
{
int w;
assert(nrbuf == 1);
buf[0]=rbuf[0];
nrbuf=0;
w=write(1,buf,n);
/* FIXME: we should push back any unwritten data */
assert(w == n);
n=SSLStateMachine_read_extract(pMachine,buf+1,sizeof buf-1);
if(n < 0)
{
SSLStateMachine_print_error(pMachine,"read extract failed");
break;
}
assert(n >= 0);
++n;
if(n > 0) /* FIXME: has to be true now */
{
int w;
w=write(1,buf,n);
/* FIXME: we should push back any unwritten data */
assert(w == n);
}
}
/* Socket is ready for output (and therefore we have output to send) */