#21760 [Com]: socket_read PHP_NORMAL_READ problem
| From: | uce at ftc dot gov | Date: | Wed, 05 Feb 2003 15:53:05 +0000 |
| Subject: | #21760 [Com]: socket_read PHP_NORMAL_READ problem | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-32197@lists.php.net to get a copy of this message | ||
ID: 21760
Comment by: uce@ftc.gov
Reported By: sunday@csh.rit.edu
Status: Open
Bug Type: Sockets related
Operating System: FreeBSD 4.7
PHP Version: 4.3.0
New Comment:
I believe this is caused by a comparison to an uninitialized buffer in
php_read (buffer emalloc'd in socket_read).
Patch:
--- php5/ext/sockets/sockets.c 2003-01-18 19:28:06.000000000 +0000
+++ php5-atropine/ext/sockets/sockets.c 2003-02-05 15:43:00.000000000
+0000
@@ -288,6 +288,7 @@
set_errno(0);
+ *t = 0;
while (*t != '\n' && *t != '\r' && n < maxlen) {
if (m > 0) {
t++;
Previous Comments:
------------------------------------------------------------------------
[2003-01-19 23:18:44] sunday@csh.rit.edu
$string = socket_read( $socket, 100, PHP_NORMAL_READ ); will return a
"\n" after several reads, and continue to return "\n" in an infinite
loop rather than the rest of the buffer.
The server it's reading from sends a large multi-line (lines terminated
with "\n") packet (~7500 bytes) in one write() call. After reading
through about half of it with the line above, socket_read will start
returning bad data about 10% - 20% of the time.
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=21760&edit=1