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Bug #13572 fread doesn't read from udp sockets
Submitted: 2001-10-06 04:04 UTC Modified: 2001-11-21 13:19 UTC
From: trh at gmx dot li Assigned:
Status: Closed Package: Sockets related
PHP Version: 4.0.6 OS: Windows 2k/Linux
Private report: No CVE-ID: None
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From: trh at gmx dot li
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 [2001-10-06 04:04 UTC] trh at gmx dot li 
socket's set to non-blocking, opened at port 9999 udp

 $start=time();
 while((time()-$start)<2)
 {
  $res=fread($fp2, 100);
  echo "$res\n";
 }

no answer from udp socket... a similar c program works

btw: in php4.0.7rc3 the problem isn't fixed

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 [2001-10-06 04:26 UTC] mfischer@php.net 
In 4.0.7 a new socket has been introduced. Did you used it?

- markus
 [2001-10-06 04:31 UTC] trh at gmx dot li 
i used fsockopen("udp://$host", $port ....)
socket_set_blocking($fp, FALSE)
 [2001-10-06 20:20 UTC] sniper@php.net 
Does the example UDP script on the manual page for fsockopen() work for you? It does for me so I doubt this is a bug..

--Jani
 [2001-10-07 09:26 UTC] trh at gmx dot li 
i tried now:
  $fp=fsockopen("udp://10.0.0.2", $mudport, $errno,$errstr);

  socket_set_timeout($fp, 3);

  if($fp)
  {
   echo "con: ok<br>";
   fwrite($fp, "$query_string");
   echo fread($fp, 100);
   fclose($fp);
  }

result is, that php still does not receive an answer from the request (php4.0.7rc3 compiled as cgi for linux)

tcpdump proves, that there was an answer:
15:22:30.654252 10.0.0.1.1062 > 10.0.0.2.4246: udp 39
15:22:30.661213 10.0.0.2.4246 > 10.0.0.1.4246: udp 126
 [2001-10-31 19:34 UTC] sniper@php.net 
You didn't try the example script from the manual.
Please try it. And what 'similar c program' are you
referring to? Are the sources somewhere available to see?


--Jani
 [2001-11-21 13:19 UTC] sander@php.net 
No feedback. Closing.
 
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