/* +----------------------------------------------------------------------+ | PHP Version 5 | +----------------------------------------------------------------------+ | Copyright (c) 1997-2008 The PHP Group | +----------------------------------------------------------------------+ | This source file is subject to version 3.01 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_01.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: flock_compat.c,v 1.29.2.1.2.2 2007/12/31 07:20:12 sebastian Exp $ */ #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 #include <netinet/in.h> #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 */