mirror of
https://github.com/php/php-src.git
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169 lines
4.4 KiB
C
169 lines
4.4 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP version 4.0 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2001 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.02 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 at through the world-wide-web at |
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| http://www.php.net/license/2_02.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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| Authors: |
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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 "safe_mode.h"
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#include "php_link.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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pval **filename;
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char buff[256];
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int ret;
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if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &filename) == FAILURE) {
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WRONG_PARAM_COUNT;
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}
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convert_to_string_ex(filename);
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ret = readlink((*filename)->value.str.val, buff, 255);
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if (ret == -1) {
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php_error(E_WARNING, "readlink failed (%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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pval **filename;
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struct stat sb;
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int ret;
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if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &filename) == FAILURE) {
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WRONG_PARAM_COUNT;
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}
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convert_to_string_ex(filename);
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ret = VCWD_LSTAT((*filename)->value.str.val, &sb);
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if (ret == -1) {
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php_error(E_WARNING, "LinkInfo failed (%s)", strerror(errno));
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RETURN_LONG(-1L);
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}
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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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pval **topath, **frompath;
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int ret;
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if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &topath, &frompath) == FAILURE) {
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WRONG_PARAM_COUNT;
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}
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convert_to_string_ex(topath);
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convert_to_string_ex(frompath);
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if (PG(safe_mode) && !php_checkuid((*topath)->value.str.val, NULL, CHECKUID_CHECK_FILE_AND_DIR)) {
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RETURN_FALSE;
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}
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if (!strncasecmp((*topath)->value.str.val, "http://", 7) || !strncasecmp((*topath)->value.str.val, "ftp://", 6)) {
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php_error(E_WARNING, "Unable to symlink to a URL");
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RETURN_FALSE;
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}
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ret = symlink((*topath)->value.str.val, (*frompath)->value.str.val);
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if (ret == -1) {
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php_error(E_WARNING, "SymLink failed (%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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pval **topath, **frompath;
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int ret;
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if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &topath, &frompath) == FAILURE) {
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WRONG_PARAM_COUNT;
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}
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convert_to_string_ex(topath);
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convert_to_string_ex(frompath);
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if (PG(safe_mode) && !php_checkuid((*topath)->value.str.val, NULL, CHECKUID_CHECK_FILE_AND_DIR)) {
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RETURN_FALSE;
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}
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if (!strncasecmp((*topath)->value.str.val, "http://", 7) || !strncasecmp((*topath)->value.str.val, "ftp://", 6)) {
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php_error(E_WARNING, "Unable to link to a URL");
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RETURN_FALSE;
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}
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ret = link((*topath)->value.str.val, (*frompath)->value.str.val);
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if (ret == -1) {
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php_error(E_WARNING, "Link failed (%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: sw=4 ts=4 tw=78 fdm=marker
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* vim<600: sw=4 ts=4 tw=78
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*/
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