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Date: Mon, 17 Jun 2013 10:04:19 +0100
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Subject: Enabling the chroot() function in PHP 5.4
From: aaron@alphageeks.cc (Aaron Stephens)

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Hi All,

     Does anybody know how to enable the chroot() function in PHP 5.4?  
It was easy in PHP 5.3 as long as you were building the CLI by itself.  
In the PHP 5.4 configure script there is a new PHP_BINARIES variable 
being used instead of setting PHP_SAPI=cli and thus the "#define 
ENABLE_CHROOT_FUNC 1" is never written to the output file.  I have been 
able to manually enable it by adding the define to the main/php_config.h 
after running configure.  The issue seems to be a line: if test 
"program" = "program".  This comparison being true is what causes the 
configure script to add "cli" to the PHP_BINARIES variable instead of 
setting the PHP_SAPI variable.  The other prerequisites (HAVE_CHROOT and 
ZTS) are all at the required settings.  It is only the 
ENABLE_CHROOT_FUNC which is causing the function to not be compiled into 
the resulting binary.  Any information or explanation would be very 
helpful.

     For the record, I know what the chroot() function does and does not 
do.  I am experimenting with using chroot() to isolate an already 
running script to a particular subset of the filesystem for file 
operations.  Thanks in advance.

-- 

  - Aaron


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