php-src/main/reentrancy.c
Kalle Sommer Nielsen d3bc8beb4f Removed support for BeOS, development for BeOS was supported 17 years ago.
This patch however does not drop support for the BeOS compatible variant, Haiku, see Github PR #2697 which is currently a WiP

I intentionally left out some fragments for BeOS in the build system for that seems to be bundles
2017-08-29 22:03:56 +02:00

439 lines
10 KiB
C

/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2017 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> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include <sys/types.h>
#include <string.h>
#include <errno.h>
#ifdef HAVE_DIRENT_H
#include <dirent.h>
#endif
#include "php_reentrancy.h"
#include "ext/standard/php_rand.h" /* for PHP_RAND_MAX */
enum {
LOCALTIME_R,
CTIME_R,
ASCTIME_R,
GMTIME_R,
READDIR_R,
NUMBER_OF_LOCKS
};
#if defined(PHP_NEED_REENTRANCY)
#include <TSRM.h>
static MUTEX_T reentrant_locks[NUMBER_OF_LOCKS];
#define local_lock(x) tsrm_mutex_lock(reentrant_locks[x])
#define local_unlock(x) tsrm_mutex_unlock(reentrant_locks[x])
#else
#define local_lock(x)
#define local_unlock(x)
#endif
#if defined(PHP_IRIX_TIME_R)
#define HAVE_CTIME_R 1
#define HAVE_ASCTIME_R 1
PHPAPI char *php_ctime_r(const time_t *clock, char *buf)
{
if (ctime_r(clock, buf) == buf)
return (buf);
return (NULL);
}
PHPAPI char *php_asctime_r(const struct tm *tm, char *buf)
{
if (asctime_r(tm, buf) == buf)
return (buf);
return (NULL);
}
#endif
#if defined(PHP_HPUX_TIME_R)
#define HAVE_LOCALTIME_R 1
#define HAVE_CTIME_R 1
#define HAVE_ASCTIME_R 1
#define HAVE_GMTIME_R 1
PHPAPI struct tm *php_localtime_r(const time_t *const timep, struct tm *p_tm)
{
if (localtime_r(timep, p_tm) == 0)
return (p_tm);
return (NULL);
}
PHPAPI char *php_ctime_r(const time_t *clock, char *buf)
{
if (ctime_r(clock, buf, 26) != -1)
return (buf);
return (NULL);
}
PHPAPI char *php_asctime_r(const struct tm *tm, char *buf)
{
if (asctime_r(tm, buf, 26) != -1)
return (buf);
return (NULL);
}
PHPAPI struct tm *php_gmtime_r(const time_t *const timep, struct tm *p_tm)
{
if (gmtime_r(timep, p_tm) == 0)
return (p_tm);
return (NULL);
}
#endif
#if !defined(HAVE_POSIX_READDIR_R)
PHPAPI int php_readdir_r(DIR *dirp, struct dirent *entry,
struct dirent **result)
{
#if defined(HAVE_OLD_READDIR_R)
int ret = 0;
/* We cannot rely on the return value of readdir_r
as it differs between various platforms
(HPUX returns 0 on success whereas Solaris returns non-zero)
*/
entry->d_name[0] = '\0';
readdir_r(dirp, entry);
if (entry->d_name[0] == '\0') {
*result = NULL;
ret = errno;
} else {
*result = entry;
}
return ret;
#else
struct dirent *ptr;
int ret = 0;
local_lock(READDIR_R);
errno = 0;
ptr = readdir(dirp);
if (!ptr && errno != 0)
ret = errno;
if (ptr)
memcpy(entry, ptr, sizeof(*ptr));
*result = ptr;
local_unlock(READDIR_R);
return ret;
#endif
}
#endif
#if !defined(HAVE_LOCALTIME_R) && defined(HAVE_LOCALTIME)
PHPAPI struct tm *php_localtime_r(const time_t *const timep, struct tm *p_tm)
{
struct tm *tmp;
local_lock(LOCALTIME_R);
tmp = localtime(timep);
if (tmp) {
memcpy(p_tm, tmp, sizeof(struct tm));
tmp = p_tm;
}
local_unlock(LOCALTIME_R);
return tmp;
}
#endif
#if !defined(HAVE_CTIME_R) && defined(HAVE_CTIME)
PHPAPI char *php_ctime_r(const time_t *clock, char *buf)
{
char *tmp;
local_lock(CTIME_R);
tmp = ctime(clock);
strcpy(buf, tmp);
local_unlock(CTIME_R);
return buf;
}
#endif
#if !defined(HAVE_ASCTIME_R) && defined(HAVE_ASCTIME)
PHPAPI char *php_asctime_r(const struct tm *tm, char *buf)
{
char *tmp;
local_lock(ASCTIME_R);
tmp = asctime(tm);
strcpy(buf, tmp);
local_unlock(ASCTIME_R);
return buf;
}
#endif
#if !defined(HAVE_GMTIME_R) && defined(HAVE_GMTIME)
PHPAPI struct tm *php_gmtime_r(const time_t *const timep, struct tm *p_tm)
{
struct tm *tmp;
local_lock(GMTIME_R);
tmp = gmtime(timep);
if (tmp) {
memcpy(p_tm, tmp, sizeof(struct tm));
tmp = p_tm;
}
local_unlock(GMTIME_R);
return tmp;
}
#endif
#if defined(PHP_NEED_REENTRANCY)
void reentrancy_startup(void)
{
int i;
for (i = 0; i < NUMBER_OF_LOCKS; i++) {
reentrant_locks[i] = tsrm_mutex_alloc();
}
}
void reentrancy_shutdown(void)
{
int i;
for (i = 0; i < NUMBER_OF_LOCKS; i++) {
tsrm_mutex_free(reentrant_locks[i]);
}
}
#endif
#ifndef HAVE_RAND_R
/*-
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* Posix rand_r function added May 1999 by Wes Peters <wes@softweyr.com>.
*/
#include <sys/types.h>
#include <stdlib.h>
static int
do_rand(unsigned long *ctx)
{
return ((*ctx = *ctx * 1103515245 + 12345) % ((u_long)PHP_RAND_MAX + 1));
}
PHPAPI int
php_rand_r(unsigned int *ctx)
{
u_long val = (u_long) *ctx;
*ctx = do_rand(&val);
return (int) *ctx;
}
#endif
#ifndef HAVE_STRTOK_R
/*
* Copyright (c) 1998 Softweyr LLC. All rights reserved.
*
* strtok_r, from Berkeley strtok
* Oct 13, 1998 by Wes Peters <wes@softweyr.com>
*
* Copyright (c) 1988, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notices, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notices, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
*
* This product includes software developed by Softweyr LLC, the
* University of California, Berkeley, and its contributors.
*
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY SOFTWEYR LLC, THE REGENTS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SOFTWEYR LLC, THE
* REGENTS, OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stddef.h>
PHPAPI char *
php_strtok_r(char *s, const char *delim, char **last)
{
char *spanp;
int c, sc;
char *tok;
if (s == NULL && (s = *last) == NULL)
{
return NULL;
}
/*
* Skip (span) leading delimiters (s += strspn(s, delim), sort of).
*/
cont:
c = *s++;
for (spanp = (char *)delim; (sc = *spanp++) != 0; )
{
if (c == sc)
{
goto cont;
}
}
if (c == 0) /* no non-delimiter characters */
{
*last = NULL;
return NULL;
}
tok = s - 1;
/*
* Scan token (scan for delimiters: s += strcspn(s, delim), sort of).
* Note that delim must have one NUL; we stop if we see that, too.
*/
for (;;)
{
c = *s++;
spanp = (char *)delim;
do
{
if ((sc = *spanp++) == c)
{
if (c == 0)
{
s = NULL;
}
else
{
char *w = s - 1;
*w = '\0';
}
*last = s;
return tok;
}
}
while (sc != 0);
}
/* NOTREACHED */
}
#endif
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/