From: chernyshevsky at hotmail dot com
Operating system: Win32/Linux
PHP version: 4.3.10
PHP Bug Type: Filesystem function related
Bug description: Copying a file into itself leads to data loss
Description:
------------
Copying a file into itself causes the source file to be truncate to 0
bytes.
copy("test", "test"); // test.txt -> 0
You can't avoid this problem just by comparing the filenames, since one
could be a symlink pointing to the other. The following would destroy
test1 if test2 is a link to test1:
copy("test1", "test2");
Reproduce code:
---------------
copy("test", "test");
Expected result:
----------------
Nothing happens or a file open error.
Actual result:
--------------
Contents in source file is lost.
--
Edit bug report at http://bugs.php.net/?id=32160&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=32160&r=trysnapshot4
Try a CVS snapshot (php5.0):
http://bugs.php.net/fix.php?id=32160&r=trysnapshot50
Try a CVS snapshot (php5.1):
http://bugs.php.net/fix.php?id=32160&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=32160&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=32160&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=32160&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=32160&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=32160&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=32160&r=support
Expected behavior: http://bugs.php.net/fix.php?id=32160&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=32160&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=32160&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=32160&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=32160&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=32160&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=32160&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=32160&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=32160&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=32160&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=32160&r=mysqlcfg
