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Bug #23092 exec("foo.php") hangs
Submitted: 2003-04-07 10:06 UTC Modified: 2003-04-23 04:36 UTC
From: jlg at huelladigital dot net Assigned:
Status: Not a bug Package: Program Execution
PHP Version: 4.3.2-RC OS: Redhat 7.3 (kernel 2.4.18)
Private report: No CVE-ID: None
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From: jlg at huelladigital dot net
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 [2003-04-07 10:06 UTC] jlg at huelladigital dot net 
I have php compiled as cgi in /usr/local/bin/php:

./configure --with-mysql --enable-ftp --enable-sockets --with-ncurses --enable-cgi

I have 2 scripts, named foo1 and foo2:

foo1:
#!/usr/local/bin/php
<?php
exec("./foo2");
?>

foo2:
#!/usr/local/bin/php
<?php
print "foo";
?>

When I call foo1 from shell the result is OK (it echoes "foo"). But when I call it as a cgi (http://myserver/cgi-bin/foo1) it calls recursively the script "foo2" and hangs. I must restart apache.

It is Apache/1.3.27.
The script directory cgi-bin has "Options ExecCGI" directive.

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 [2003-04-07 17:56 UTC] sniper@php.net 
Please try using this CVS snapshot:

  http://snaps.php.net/php4-STABLE-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php4-win32-STABLE-latest.zip
 [2003-04-08 02:46 UTC] jlg at huelladigital dot net 
I did, with no result. I also tried the other execution functions: passthru(), system(), shell_exec() and proc_open(). I tried, as well, redirecting the output to /dev/null &. The result was always the same.
 [2003-04-23 04:07 UTC] sniper@php.net 
Remove those hasbang lines and it will work fine.
 [2003-04-23 04:36 UTC] edink@php.net 
Better yet make sure /usr/local/bin/php is CLI and not CGI version of PHP. CGI cannot be executed from withing web server environment like that.
 
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