mirror of
https://github.com/php/php-src.git
synced 2024-11-25 19:05:31 +08:00
239 lines
6.8 KiB
C
239 lines
6.8 KiB
C
/*
|
|
+----------------------------------------------------------------------+
|
|
| PHP Version 5 |
|
|
+----------------------------------------------------------------------+
|
|
| Copyright (c) 1997-2004 The PHP Group |
|
|
+----------------------------------------------------------------------+
|
|
| This source file is subject to version 3.0 of the PHP license, |
|
|
| that is bundled with this package in the file LICENSE, and is |
|
|
| available through the world-wide-web at the following url: |
|
|
| http://www.php.net/license/3_0.txt. |
|
|
| If you did not receive a copy of the PHP license and are unable to |
|
|
| obtain it through the world-wide-web, please send a note to |
|
|
| license@php.net so we can mail you a copy immediately. |
|
|
+----------------------------------------------------------------------+
|
|
| Author: Sascha Schumann <sascha@schumann.cx> |
|
|
+----------------------------------------------------------------------+
|
|
*/
|
|
|
|
/* $Id$ */
|
|
|
|
#include "php.h"
|
|
#include <errno.h>
|
|
#include "ext/standard/flock_compat.h"
|
|
|
|
#if HAVE_STRUCT_FLOCK
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include <sys/file.h>
|
|
#endif
|
|
|
|
#ifdef PHP_WIN32
|
|
#include <io.h>
|
|
#endif
|
|
|
|
#ifdef NETWARE
|
|
#ifdef NEW_LIBC
|
|
#include <netinet/in.h>
|
|
#else
|
|
#include <sys/socket.h>
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef HAVE_FLOCK
|
|
PHPAPI int flock(int fd, int operation)
|
|
{
|
|
return php_flock(fd, operation);
|
|
}
|
|
#endif /* !defined(HAVE_FLOCK) */
|
|
|
|
PHPAPI int php_flock(int fd, int operation)
|
|
#if HAVE_STRUCT_FLOCK
|
|
{
|
|
struct flock flck;
|
|
int ret;
|
|
|
|
flck.l_start = flck.l_len = 0;
|
|
flck.l_whence = SEEK_SET;
|
|
|
|
if (operation & LOCK_SH)
|
|
flck.l_type = F_RDLCK;
|
|
else if (operation & LOCK_EX)
|
|
flck.l_type = F_WRLCK;
|
|
else if (operation & LOCK_UN)
|
|
flck.l_type = F_UNLCK;
|
|
else {
|
|
errno = EINVAL;
|
|
return -1;
|
|
}
|
|
|
|
ret = fcntl(fd, operation & LOCK_NB ? F_SETLK : F_SETLKW, &flck);
|
|
|
|
if (operation & LOCK_NB && ret == -1 &&
|
|
(errno == EACCES || errno == EAGAIN))
|
|
errno = EWOULDBLOCK;
|
|
|
|
if (ret != -1) ret = 0;
|
|
|
|
return ret;
|
|
}
|
|
#elif defined(PHP_WIN32)
|
|
/*
|
|
* Program: Unix compatibility routines
|
|
*
|
|
* Author: Mark Crispin
|
|
* Networks and Distributed Computing
|
|
* Computing & Communications
|
|
* University of Washington
|
|
* Administration Building, AG-44
|
|
* Seattle, WA 98195
|
|
* Internet: MRC@CAC.Washington.EDU
|
|
*
|
|
* Date: 14 September 1996
|
|
* Last Edited: 14 August 1997
|
|
*
|
|
* Copyright 1997 by the University of Washington
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software and its
|
|
* documentation for any purpose and without fee is hereby granted, provided
|
|
* that the above copyright notice appears in all copies and that both the
|
|
* above copyright notice and this permission notice appear in supporting
|
|
* documentation, and that the name of the University of Washington not be
|
|
* used in advertising or publicity pertaining to distribution of the software
|
|
* without specific, written prior permission. This software is made available
|
|
* "as is", and
|
|
* THE UNIVERSITY OF WASHINGTON DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED,
|
|
* WITH REGARD TO THIS SOFTWARE, INCLUDING WITHOUT LIMITATION ALL IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, AND IN
|
|
* NO EVENT SHALL THE UNIVERSITY OF WASHINGTON BE LIABLE FOR ANY SPECIAL,
|
|
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
|
|
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, TORT
|
|
* (INCLUDING NEGLIGENCE) OR STRICT LIABILITY, ARISING OUT OF OR IN CONNECTION
|
|
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*
|
|
*/
|
|
/* DEDICATION
|
|
|
|
* This file is dedicated to my dog, Unix, also known as Yun-chan and
|
|
* Unix J. Terwilliker Jehosophat Aloysius Monstrosity Animal Beast. Unix
|
|
* passed away at the age of 11 1/2 on September 14, 1996, 12:18 PM PDT, after
|
|
* a two-month bout with cirrhosis of the liver.
|
|
*
|
|
* He was a dear friend, and I miss him terribly.
|
|
*
|
|
* Lift a leg, Yunie. Luv ya forever!!!!
|
|
*/
|
|
{
|
|
HANDLE hdl = (HANDLE) _get_osfhandle(fd);
|
|
DWORD low = 1, high = 0;
|
|
OVERLAPPED offset =
|
|
{0, 0, 0, 0, NULL};
|
|
if (hdl < 0)
|
|
return -1; /* error in file descriptor */
|
|
/* bug for bug compatible with Unix */
|
|
UnlockFileEx(hdl, 0, low, high, &offset);
|
|
switch (operation & ~LOCK_NB) { /* translate to LockFileEx() op */
|
|
case LOCK_EX: /* exclusive */
|
|
if (LockFileEx(hdl, LOCKFILE_EXCLUSIVE_LOCK +
|
|
((operation & LOCK_NB) ? LOCKFILE_FAIL_IMMEDIATELY : 0),
|
|
0, low, high, &offset))
|
|
return 0;
|
|
break;
|
|
case LOCK_SH: /* shared */
|
|
if (LockFileEx(hdl, ((operation & LOCK_NB) ? LOCKFILE_FAIL_IMMEDIATELY : 0),
|
|
0, low, high, &offset))
|
|
return 0;
|
|
break;
|
|
case LOCK_UN: /* unlock */
|
|
return 0; /* always succeeds */
|
|
default: /* default */
|
|
break;
|
|
}
|
|
/* Under Win32 MT library, errno is not a variable but a function call,
|
|
* which cannot be assigned to.
|
|
*/
|
|
#if !defined(PHP_WIN32)
|
|
errno = EINVAL; /* bad call */
|
|
#endif
|
|
return -1;
|
|
}
|
|
#else
|
|
#warning no proper flock support for your site
|
|
{
|
|
errno = 0;
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if !(HAVE_INET_ATON)
|
|
/* {{{ inet_aton
|
|
* Check whether "cp" is a valid ascii representation
|
|
* of an Internet address and convert to a binary address.
|
|
* Returns 1 if the address is valid, 0 if not.
|
|
* This replaces inet_addr, the return value from which
|
|
* cannot distinguish between failure and a local broadcast address.
|
|
*/
|
|
int inet_aton(const char *cp, struct in_addr *ap)
|
|
{
|
|
int dots = 0;
|
|
register unsigned long acc = 0, addr = 0;
|
|
|
|
do {
|
|
register char cc = *cp;
|
|
|
|
switch (cc) {
|
|
case '0':
|
|
case '1':
|
|
case '2':
|
|
case '3':
|
|
case '4':
|
|
case '5':
|
|
case '6':
|
|
case '7':
|
|
case '8':
|
|
case '9':
|
|
acc = acc * 10 + (cc - '0');
|
|
break;
|
|
|
|
case '.':
|
|
if (++dots > 3) {
|
|
return 0;
|
|
}
|
|
/* Fall through */
|
|
|
|
case '\0':
|
|
if (acc > 255) {
|
|
return 0;
|
|
}
|
|
addr = addr << 8 | acc;
|
|
acc = 0;
|
|
break;
|
|
|
|
default:
|
|
return 0;
|
|
}
|
|
} while (*cp++) ;
|
|
|
|
/* Normalize the address */
|
|
if (dots < 3) {
|
|
addr <<= 8 * (3 - dots) ;
|
|
}
|
|
|
|
/* Store it if requested */
|
|
if (ap) {
|
|
ap->s_addr = htonl(addr);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
/* }}} */
|
|
#endif /* !HAVE_INET_ATON */
|
|
|
|
/*
|
|
* Local variables:
|
|
* tab-width: 4
|
|
* c-basic-offset: 4
|
|
* End:
|
|
* vim600: sw=4 ts=4 fdm=marker
|
|
* vim<600: sw=4 ts=4
|
|
*/
|