#29005 [NEW]: fopen() can't open NT named pipes on local computer
From: cleong at nflc dot org
Operating system: Windows 2000
PHP version: 4.3.6
PHP Bug Type: Filesystem function related
Bug description: fopen() can't open NT named pipes on local computer
Description:
------------
fopen() can't handle path names like "\\.\pipe\pipename" because the
internal function virtual_file_ex() see the ".\" part, thinks that it
means current directory, and promptly removes it.
The manual doesn't mention named pipes but I think this is worth fixing as
it will give PHP Win32 a robust interprocess communication mechanism that's
fairly easy to implement. The fix is easy enough. Insert the following at
line 413 in tsrm_virtual_cwd.c, right after the else if
(!IS_DIRECTORY_CURRENT(ptr, ptr_length)) loop:
#ifdef TSRM_WIN32
/* '.' should be retained if the first two chars are '\' as it stands
for local machine
done mainly for paths to NT named pipes (\\.\pipe\pipename) */
} else if(state->cwd_length == 2 && state->cwd[0] == '\\' &&
state->cwd[1] == '\\') {
state->cwd = (char *) realloc(state->cwd,
state->cwd_length+ptr_length+1);
memcpy(&state->cwd[state->cwd_length], ptr, ptr_length+1);
state->cwd_length += ptr_length;
#endif
}
Reproduce code:
---------------
Set break point at line 1975 in streams.c
fd = open(realpath, open_flags, 0666);
then run <? readfile('\\\\.\\pipe\\pipename'); ?>. Inspect realpath.
Expected result:
----------------
realpath => \\.\pipe\pipename
Actual result:
--------------
realpath => \\pipe\pipename
--
Edit bug report at http://bugs.php.net/?id=29005&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=29005&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=29005&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=29005&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=29005&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=29005&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=29005&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=29005&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=29005&r=support
Expected behavior: http://bugs.php.net/fix.php?id=29005&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=29005&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=29005&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=29005&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=29005&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=29005&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=29005&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=29005&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=29005&r=float
Thread (6 messages)
- cleong at nflc dot org