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Bug #25923 'to' parmeter of mail() gets altered when containing trailing whitespace
Submitted: 2003-10-20 08:00 UTC Modified: 2003-10-20 10:21 UTC
From: tom at scl dot co dot uk Assigned:
Status: Closed Package: Mail related
PHP Version: 4.3.3 OS: Linux 2.4.18
Private report: No CVE-ID:
 [2003-10-20 08:00 UTC] tom at scl dot co dot uk
Description:
------------
When you hand a variable to the 'to' parameter of the mail() function which has trailing whitespace the PHP variable get altered!

It seems the mail() function is stripping the trailing whitespace by putting a null character at the start of it, but this is somehow getting back into the PHP variable (as if it had been passed by reference?) so the PHP variable contains a null character where the trailing whitespace started before the mail() function was called.

Reproduce code:
---------------
<?php
// to address with trailing space
$to = 'tom@scl.co.uk ';
 
// Output the ASCII code for the last char
// in the $to address string
print("Last char=".ord($to{strlen($to)-1})."\n");
 
// Send a message to the email address in $to
mail($to, "Subject", "Message");

// Output the ASCII code for the last char
// in the $to address string
print("Last char=".ord($to{strlen($to)-1})."\n");
?>

Expected result:
----------------
Last char=32
Last char=32

Actual result:
--------------
Last char=32
Last char=0

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History

AllCommentsChangesGit/SVN commitsRelated reports
 [2003-10-20 10:21 UTC] iliaa@php.net
This bug has been fixed in CVS.

In case this was a PHP problem, snapshots of the sources are packaged
every three hours; this change will be in the next snapshot. You can
grab the snapshot at http://snaps.php.net/.
 
In case this was a documentation problem, the fix will show up soon at
http://www.php.net/manual/.

In case this was a PHP.net website problem, the change will show
up on the PHP.net site and on the mirror sites in short time.
 
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