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117a2fba07
* hand-patched in php3 changes from 3.0.6 to HEAD in these files: fopen-wrappers.[ch] ext/standard/file.[ch] ext/standard/fsock.[ch] ext/standard/php3_string.h ext/standard/string.c * added some new file/socket macros for more readable code: FP_FGETS(buf,len,sock,fp,issock) FP_FREAD(buf,len,sock,fp,issock) FP_FEOF(sock,fp,issock) FP_FGETC(sock,fp,issock)
231 lines
7.3 KiB
C
231 lines
7.3 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP HTML Embedded Scripting Language Version 3.0 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-1999 PHP Development Team (See Credits file) |
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+----------------------------------------------------------------------+
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| This program is free software; you can redistribute it and/or modify |
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| it under the terms of one of the following licenses: |
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| |
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| A) the GNU General Public License as published by the Free Software |
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| Foundation; either version 2 of the License, or (at your option) |
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| any later version. |
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| |
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| B) the PHP License as published by the PHP Development Team and |
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| included in the distribution in the file: LICENSE |
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| |
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| This program is distributed in the hope that it will be useful, |
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| but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| GNU General Public License for more details. |
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| |
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| You should have received a copy of both licenses referred to here. |
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| If you did not, or have any questions about PHP licensing, please |
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| contact core@php.net. |
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+----------------------------------------------------------------------+
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| Authors: Sascha Schumann <sas@schell.de> |
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+----------------------------------------------------------------------+
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$Id$
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*/
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#include <php.h>
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#include <errno.h>
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#include "ext/standard/flock_compat.h"
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#if HAVE_STRUCT_FLOCK
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#include <unistd.h>
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#include <fcntl.h>
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#endif
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#if WIN32|WINNT
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#include <windows.h>
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#include <io.h>
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#endif
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#ifndef HAVE_FLOCK
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int flock(int fd, int operation)
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#if HAVE_STRUCT_FLOCK
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{
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struct flock flck;
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int ret;
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flck.l_start = flck.l_len = 0;
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flck.l_whence = SEEK_SET;
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if (operation & LOCK_SH)
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flck.l_type = F_RDLCK;
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else if (operation & LOCK_EX)
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flck.l_type = F_WRLCK;
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else if (operation & LOCK_UN)
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flck.l_type = F_UNLCK;
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else {
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errno = EINVAL;
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return -1;
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}
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ret = fcntl(fd, operation & LOCK_NB ? F_SETLK : F_SETLKW, &flck);
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if (operation & LOCK_NB && ret == -1 &&
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(errno == EACCES || errno == EAGAIN))
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errno = EWOULDBLOCK;
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if (ret != -1) ret = 0;
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return ret;
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}
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#elif WIN32|WINNT
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/*
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* Program: Unix compatibility routines
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*
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* Author: Mark Crispin
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* Networks and Distributed Computing
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* Computing & Communications
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* University of Washington
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* Administration Building, AG-44
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* Seattle, WA 98195
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* Internet: MRC@CAC.Washington.EDU
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*
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* Date: 14 September 1996
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* Last Edited: 14 August 1997
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*
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* Copyright 1997 by the University of Washington
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*
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* Permission to use, copy, modify, and distribute this software and its
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* documentation for any purpose and without fee is hereby granted, provided
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* that the above copyright notice appears in all copies and that both the
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* above copyright notice and this permission notice appear in supporting
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* documentation, and that the name of the University of Washington not be
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* used in advertising or publicity pertaining to distribution of the software
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* without specific, written prior permission. This software is made available
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* "as is", and
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* THE UNIVERSITY OF WASHINGTON DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED,
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* WITH REGARD TO THIS SOFTWARE, INCLUDING WITHOUT LIMITATION ALL IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, AND IN
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* NO EVENT SHALL THE UNIVERSITY OF WASHINGTON BE LIABLE FOR ANY SPECIAL,
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* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, TORT
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* (INCLUDING NEGLIGENCE) OR STRICT LIABILITY, ARISING OUT OF OR IN CONNECTION
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* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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/* DEDICATION
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* This file is dedicated to my dog, Unix, also known as Yun-chan and
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* Unix J. Terwilliker Jehosophat Aloysius Monstrosity Animal Beast. Unix
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* passed away at the age of 11 1/2 on September 14, 1996, 12:18 PM PDT, after
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* a two-month bout with cirrhosis of the liver.
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*
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* He was a dear friend, and I miss him terribly.
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*
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* Lift a leg, Yunie. Luv ya forever!!!!
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*/
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{
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HANDLE hdl = (HANDLE) _get_osfhandle(fd);
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DWORD low = 1, high = 0;
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OVERLAPPED offset =
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{0, 0, 0, 0, NULL};
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if (hdl < 0)
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return -1; /* error in file descriptor */
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/* bug for bug compatible with Unix */
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UnlockFileEx(hdl, 0, low, high, &offset);
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switch (operation & ~LOCK_NB) { /* translate to LockFileEx() op */
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case LOCK_EX: /* exclusive */
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if (LockFileEx(hdl, LOCKFILE_EXCLUSIVE_LOCK +
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((operation & LOCK_NB) ? LOCKFILE_FAIL_IMMEDIATELY : 0),
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0, low, high, &offset))
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return 0;
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break;
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case LOCK_SH: /* shared */
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if (LockFileEx(hdl, ((operation & LOCK_NB) ? LOCKFILE_FAIL_IMMEDIATELY : 0),
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0, low, high, &offset))
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return 0;
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break;
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case LOCK_UN: /* unlock */
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return 0; /* always succeeds */
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default: /* default */
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break;
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}
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/* Under Win32 MT library, errno is not a variable but a function call,
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* which cannot be assigned to.
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*/
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#if !(WIN32|WINNT)
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errno = EINVAL; /* bad call */
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#endif
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return -1;
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}
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#else
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#warning no proper flock support for your site
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{
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errno = 0;
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return 0;
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}
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#endif
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#endif /* !defined(HAVE_FLOCK) */
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#if !(HAVE_INET_ATON)
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/*
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* Check whether "cp" is a valid ascii representation
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* of an Internet address and convert to a binary address.
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* Returns 1 if the address is valid, 0 if not.
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* This replaces inet_addr, the return value from which
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* cannot distinguish between failure and a local broadcast address.
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*/
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int inet_aton(const char *cp, struct in_addr *ap)
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{
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int dots = 0;
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register unsigned long acc = 0, addr = 0;
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do {
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register char cc = *cp;
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switch (cc) {
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':
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case '8':
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case '9':
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acc = acc * 10 + (cc - '0');
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break;
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case '.':
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if (++dots > 3) {
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return 0;
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}
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/* Fall through */
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case '\0':
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if (acc > 255) {
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return 0;
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}
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addr = addr << 8 | acc;
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acc = 0;
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break;
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default:
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return 0;
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}
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} while (*cp++) ;
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/* Normalize the address */
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if (dots < 3) {
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addr <<= 8 * (3 - dots) ;
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}
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/* Store it if requested */
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if (ap) {
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ap->s_addr = htonl(addr);
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}
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return 1;
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}
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#endif /* !HAVE_INET_ATON */
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