mirror of
https://github.com/php/php-src.git
synced 2024-09-24 03:17:26 +00:00
0cb9d75cb6
* PHP-5.4.40:
Additional fix for bug #69324
More fixes for bug #69152
Fixed bug #69353 (Missing null byte checks for paths in various PHP extensions)
Fixed bug #69324 (Buffer Over-read in unserialize when parsing Phar)
Fixed bug #69316 (Use-after-free in php_curl related to CURLOPT_FILE/_INFILE/_WRITEHEADER)
Fix bug #68486 and bug #69218 (segfault in apache2handler with apache 2.4)
Fix bug #68819 (Fileinfo on specific file causes spurious OOM and/or segfault)
Fixed bug #68901 (use after free)
Fixed bug #68740 (NULL Pointer Dereference)
Fix bug #66550 (SQLite prepared statement use-after-free)
Better fix for #68601 for perf 81e9a993f2
Fix bug #68601 buffer read overflow in gd_gif_in.c
Revert "Merge branch 'PHP-5.4' of https://git.php.net/repository/php-src into PHP-5.4"
Fixed bug #69293
Add ZEND_ARG_CALLABLE_INFO to allow internal function to type hint against callable.
233 lines
5.8 KiB
C
233 lines
5.8 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP Version 5 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2015 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Author: |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#include "php.h"
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#include "php_filestat.h"
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#include "php_globals.h"
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#ifdef HAVE_SYMLINK
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#include <stdlib.h>
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <sys/stat.h>
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#include <string.h>
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#if HAVE_PWD_H
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#ifdef PHP_WIN32
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#include "win32/pwd.h"
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#else
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#include <pwd.h>
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#endif
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#endif
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#if HAVE_GRP_H
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#ifdef PHP_WIN32
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#include "win32/grp.h"
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#else
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#include <grp.h>
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#endif
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#endif
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#include <errno.h>
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#include <ctype.h>
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#include "php_link.h"
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#include "php_string.h"
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/* {{{ proto string readlink(string filename)
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Return the target of a symbolic link */
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PHP_FUNCTION(readlink)
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{
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char *link;
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int link_len;
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char buff[MAXPATHLEN];
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int ret;
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if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "p", &link, &link_len) == FAILURE) {
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return;
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}
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if (php_check_open_basedir(link TSRMLS_CC)) {
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RETURN_FALSE;
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}
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ret = php_sys_readlink(link, buff, MAXPATHLEN-1);
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if (ret == -1) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", strerror(errno));
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RETURN_FALSE;
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}
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/* Append NULL to the end of the string */
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buff[ret] = '\0';
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RETURN_STRING(buff, 1);
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}
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/* }}} */
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/* {{{ proto int linkinfo(string filename)
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Returns the st_dev field of the UNIX C stat structure describing the link */
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PHP_FUNCTION(linkinfo)
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{
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char *link;
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char *dirname;
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int link_len, dir_len;
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struct stat sb;
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int ret;
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if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "p", &link, &link_len) == FAILURE) {
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return;
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}
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dirname = estrndup(link, link_len);
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dir_len = php_dirname(dirname, link_len);
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if (php_check_open_basedir(dirname TSRMLS_CC)) {
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efree(dirname);
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RETURN_FALSE;
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}
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ret = VCWD_LSTAT(link, &sb);
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if (ret == -1) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", strerror(errno));
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efree(dirname);
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RETURN_LONG(-1L);
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}
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efree(dirname);
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RETURN_LONG((long) sb.st_dev);
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}
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/* }}} */
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/* {{{ proto int symlink(string target, string link)
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Create a symbolic link */
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PHP_FUNCTION(symlink)
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{
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char *topath, *frompath;
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int topath_len, frompath_len;
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int ret;
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char source_p[MAXPATHLEN];
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char dest_p[MAXPATHLEN];
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char dirname[MAXPATHLEN];
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size_t len;
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if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "pp", &topath, &topath_len, &frompath, &frompath_len) == FAILURE) {
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return;
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}
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if (!expand_filepath(frompath, source_p TSRMLS_CC)) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "No such file or directory");
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RETURN_FALSE;
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}
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memcpy(dirname, source_p, sizeof(source_p));
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len = php_dirname(dirname, strlen(dirname));
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if (!expand_filepath_ex(topath, dest_p, dirname, len TSRMLS_CC)) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "No such file or directory");
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RETURN_FALSE;
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}
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if (php_stream_locate_url_wrapper(source_p, NULL, STREAM_LOCATE_WRAPPERS_ONLY TSRMLS_CC) ||
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php_stream_locate_url_wrapper(dest_p, NULL, STREAM_LOCATE_WRAPPERS_ONLY TSRMLS_CC) )
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{
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to symlink to a URL");
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RETURN_FALSE;
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}
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if (php_check_open_basedir(dest_p TSRMLS_CC)) {
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RETURN_FALSE;
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}
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if (php_check_open_basedir(source_p TSRMLS_CC)) {
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RETURN_FALSE;
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}
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/* For the source, an expanded path must be used (in ZTS an other thread could have changed the CWD).
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* For the target the exact string given by the user must be used, relative or not, existing or not.
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* The target is relative to the link itself, not to the CWD. */
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ret = symlink(topath, source_p);
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if (ret == -1) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", strerror(errno));
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RETURN_FALSE;
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}
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RETURN_TRUE;
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}
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/* }}} */
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/* {{{ proto int link(string target, string link)
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Create a hard link */
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PHP_FUNCTION(link)
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{
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char *topath, *frompath;
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int topath_len, frompath_len;
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int ret;
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char source_p[MAXPATHLEN];
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char dest_p[MAXPATHLEN];
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if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "pp", &topath, &topath_len, &frompath, &frompath_len) == FAILURE) {
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return;
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}
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if (!expand_filepath(frompath, source_p TSRMLS_CC) || !expand_filepath(topath, dest_p TSRMLS_CC)) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "No such file or directory");
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RETURN_FALSE;
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}
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if (php_stream_locate_url_wrapper(source_p, NULL, STREAM_LOCATE_WRAPPERS_ONLY TSRMLS_CC) ||
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php_stream_locate_url_wrapper(dest_p, NULL, STREAM_LOCATE_WRAPPERS_ONLY TSRMLS_CC) )
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{
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to link to a URL");
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RETURN_FALSE;
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}
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if (php_check_open_basedir(dest_p TSRMLS_CC)) {
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RETURN_FALSE;
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}
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if (php_check_open_basedir(source_p TSRMLS_CC)) {
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RETURN_FALSE;
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}
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#ifndef ZTS
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ret = link(topath, frompath);
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#else
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ret = link(dest_p, source_p);
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#endif
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if (ret == -1) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", strerror(errno));
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RETURN_FALSE;
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}
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RETURN_TRUE;
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}
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/* }}} */
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#endif
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/*
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* Local variables:
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* tab-width: 4
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* c-basic-offset: 4
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* End:
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* vim600: noet sw=4 ts=4 fdm=marker
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* vim<600: noet sw=4 ts=4
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*/
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