Edit report at https://bugs.php.net/bug.php?id=55336&edit=1
ID: 55336
Updated by: kalle@php.net
Reported by: grabli_2005 at mail dot ru
Summary: mail() function is not thread safe for Windows
builds
Status: Open
Type: Bug
Package: Network related
Operating System: Windows
PHP Version: 5.4.0alpha2
Block user comment: N
Private report: N
New Comment:
Have you encountered any issues specific to this finding? I suppose we could make a new globals,
like PW32G for SendMail and stash the variables in there.
Previous Comments:
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[2011-08-03 18:20:59] grabli_2005 at mail dot ru
switch status to open, see details in previous comment
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[2011-08-01 13:40:27] grabli_2005 at mail dot ru
I`ve provide this patches as reference only, not as product quality code replacement.
The only difference that I note since 5.3.0 is FormatEmailAddress function, that omits <>
around emails.
You can check my statment:
look at /ext/standard/mail.c function php_mail
Here nix path: sendmail = popen(sendmail_cmd, "w");
Here win32 path: if (TSendMail(INI_STR("SMTP"), &tsm_err, &tsm_errmsg, hdr,
subject, to, message, NULL, NULL, NULL TSRMLS_CC) == FAILURE) {
TSendMail located in win32\sendmail.c
here global variables:
#ifndef THREAD_SAFE
char Buffer[MAIL_BUFFER_SIZE];
/* socket related data */
SOCKET sc;
#ifndef NETWARE
WSADATA Data;
struct hostent *adr;
int WinsockStarted;
/* values set by the constructor */
char *AppName;
#endif /* NETWARE */
SOCKADDR_IN sock_in;
char MailHost[HOST_NAME_LEN];
char LocalHost[HOST_NAME_LEN];
#endif
It`s placed under #ifndef THREAD_SAFE, but THREAD_SAFE not defined anywhere even when compile with
ZTS. More often _THREAD_SAFE used around the code.
If you define THREAD_SAFE it`s break sendmail.c compilation, because rest of code uses this
variables without any define switch.
You can simply debug or place debug printf() in TSendMail and see that this code executed and uses
global variables.
win32\time.c have same issue.
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[2011-08-01 12:55:11] pajoye@php.net
Please provide a patch against 5.3 and 5.4.
Also I'm not sure about your statement.
------------------------------------------------------------------------
[2011-08-01 12:02:42] grabli_2005 at mail dot ru
fixed typo in title
------------------------------------------------------------------------
[2011-08-01 11:50:39] grabli_2005 at mail dot ru
Description:
------------
win32\sendmail.c contans static variables and not thread safe.
Test script:
---------------
It`s not so easy to write test script, because of multithreading and needs of test SMTP server.
Expected result:
----------------
mail() funtion should be thread safe.
Ive found this bug years ago. Ive re-write sendmail.c to not use global variables for
php 5.3.0.
Also I make it compilable for nix build, so mail() may not start heavy sendmail process and connect
directly to local SMTP.
You can get this versions here http://lion.rusfur.net/mail_patch.rar
Actual result:
--------------
mail() fountion is not thread safe.
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Edit this bug report at https://bugs.php.net/bug.php?id=55336&edit=1