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|
/*
+----------------------------------------------------------------------+
| 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: |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include "php.h"
#include "php_filestat.h"
#include "php_globals.h"
#ifdef HAVE_SYMLINK
#include <stdlib.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <sys/stat.h>
#include <string.h>
#if HAVE_PWD_H
#ifdef PHP_WIN32
#include "win32/pwd.h"
#else
#include <pwd.h>
#endif
#endif
#if HAVE_GRP_H
#ifdef PHP_WIN32
#include "win32/grp.h"
#else
#include <grp.h>
#endif
#endif
#include <errno.h>
#include <ctype.h>
#include "php_link.h"
#include "ext/standard/file.h"
/* {{{ proto string readlink(string filename) U
Return the target of a symbolic link */
PHP_FUNCTION(readlink)
{
zval **pp_link;
char *link;
UChar *target;
int link_len, target_len;
char buff[MAXPATHLEN];
int ret;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "Z", &pp_link) == FAILURE ||
php_stream_path_param_encode(pp_link, &link, &link_len, REPORT_ERRORS, FG(default_context)) == FAILURE) {
return;
}
if (php_check_open_basedir(link TSRMLS_CC)) {
RETURN_FALSE;
}
ret = readlink(link, buff, MAXPATHLEN-1);
if (ret == -1) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", strerror(errno));
RETURN_FALSE;
}
/* Append NULL to the end of the string */
buff[ret] = '\0';
if (UG(unicode)) {
if (SUCCESS == php_stream_path_decode(NULL, &target, &target_len, buff, strlen(buff), REPORT_ERRORS, FG(default_context))) {
RETURN_UNICODEL(target, target_len, 0);
} else {
RETURN_FALSE;
}
} else {
RETURN_STRING(buff, 1);
}
}
/* }}} */
/* {{{ proto int linkinfo(string filename) U
Returns the st_dev field of the UNIX C stat structure describing the link */
PHP_FUNCTION(linkinfo)
{
zval **pp_link;
char *link;
int link_len;
struct stat sb;
int ret;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "Z", &pp_link) == FAILURE ||
php_stream_path_param_encode(pp_link, &link, &link_len, REPORT_ERRORS, FG(default_context)) == FAILURE) {
return;
}
ret = VCWD_LSTAT(link, &sb);
if (ret == -1) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", strerror(errno));
RETURN_LONG(-1L);
}
RETURN_LONG((long) sb.st_dev);
}
/* }}} */
/* {{{ proto int symlink(string target, string link) U
Create a symbolic link */
PHP_FUNCTION(symlink)
{
zval **pp_topath, **pp_frompath;
char *topath, *frompath;
int topath_len, frompath_len;
int ret;
char source_p[MAXPATHLEN];
char dest_p[MAXPATHLEN];
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ZZ", &pp_topath, &pp_frompath) == FAILURE ||
php_stream_path_param_encode(pp_topath, &topath, &topath_len, REPORT_ERRORS, FG(default_context)) == FAILURE ||
php_stream_path_param_encode(pp_frompath, &frompath, &frompath_len, REPORT_ERRORS, FG(default_context)) == FAILURE) {
return;
}
if (!expand_filepath(frompath, source_p TSRMLS_CC) || !expand_filepath(topath, dest_p TSRMLS_CC)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "No such file or directory");
RETURN_FALSE;
}
if (php_stream_locate_url_wrapper(source_p, NULL, STREAM_LOCATE_WRAPPERS_ONLY TSRMLS_CC) ||
php_stream_locate_url_wrapper(dest_p, NULL, STREAM_LOCATE_WRAPPERS_ONLY TSRMLS_CC) )
{
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to symlink to a URL");
RETURN_FALSE;
}
if (php_check_open_basedir(dest_p TSRMLS_CC)) {
RETURN_FALSE;
}
if (php_check_open_basedir(source_p TSRMLS_CC)) {
RETURN_FALSE;
}
#ifndef ZTS
ret = symlink(topath, frompath);
#else
ret = symlink(dest_p, source_p);
#endif
if (ret == -1) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", strerror(errno));
RETURN_FALSE;
}
RETURN_TRUE;
}
/* }}} */
/* {{{ proto int link(string target, string link) U
Create a hard link */
PHP_FUNCTION(link)
{
zval **pp_topath, **pp_frompath;
char *topath, *frompath;
int topath_len, frompath_len;
int ret;
char source_p[MAXPATHLEN];
char dest_p[MAXPATHLEN];
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ZZ", &pp_topath, &pp_frompath) == FAILURE ||
php_stream_path_param_encode(pp_topath, &topath, &topath_len, REPORT_ERRORS, FG(default_context)) == FAILURE ||
php_stream_path_param_encode(pp_frompath, &frompath, &frompath_len, REPORT_ERRORS, FG(default_context)) == FAILURE) {
return;
}
if (!expand_filepath(frompath, source_p TSRMLS_CC) || !expand_filepath(topath, dest_p TSRMLS_CC)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "No such file or directory");
RETURN_FALSE;
}
if (php_stream_locate_url_wrapper(source_p, NULL, STREAM_LOCATE_WRAPPERS_ONLY TSRMLS_CC) ||
php_stream_locate_url_wrapper(dest_p, NULL, STREAM_LOCATE_WRAPPERS_ONLY TSRMLS_CC) )
{
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to link to a URL");
RETURN_FALSE;
}
if (php_check_open_basedir(dest_p TSRMLS_CC)) {
RETURN_FALSE;
}
if (php_check_open_basedir(source_p TSRMLS_CC)) {
RETURN_FALSE;
}
#ifndef ZTS
ret = link(topath, frompath);
#else
ret = link(dest_p, source_p);
#endif
if (ret == -1) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", strerror(errno));
RETURN_FALSE;
}
RETURN_TRUE;
}
/* }}} */
#endif
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: noet sw=4 ts=4 fdm=marker
* vim<600: noet sw=4 ts=4
*/
|
