--- /dev/null
+/*
+ +----------------------------------------------------------------------+
+ | PHP Version 5 |
+ +----------------------------------------------------------------------+
+ | Copyright (c) 1997-2009 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: Pierre A. Joye <pierre@php.net> |
+ +----------------------------------------------------------------------+
+ */
+
+/* $Id$ */
+#ifdef PHP_WIN32
+
+#include "php.h"
+#include "php_filestat.h"
+#include "php_globals.h"
+
+#include <WinBase.h>
+
+#include <stdlib.h>
+
+#include <string.h>
+#if HAVE_PWD_H
+#include "win32/pwd.h"
+#endif
+
+#if HAVE_GRP_H
+#include "win32/grp.h"
+#endif
+
+#include <errno.h>
+#include <ctype.h>
+
+#include "php_link.h"
+#include "php_string.h"
+
+/*
+TODO:
+- Create php_readlink, php_link and php_symlink in win32/link.c
+- Expose them (PHPAPI) so extensions developers can use them
+- define link/readlink/symlink to their php_ equivalent and use them in ext/standart/link.c
+- this file is then useless and we have a portable link API
+*/
+
+/* {{{ proto string readlink(string filename)
+ Return the target of a symbolic link */
+PHP_FUNCTION(readlink)
+{
+ HINSTANCE kernel32;
+ char *link;
+ int link_len;
+ TCHAR Path[MAXPATHLEN];
+ HANDLE hFile;
+ DWORD dwRet;
+
+ typedef BOOL (WINAPI *gfpnh_func)(HANDLE, LPTSTR, DWORD, DWORD);
+ gfpnh_func pGetFinalPathNameByHandle;
+
+ kernel32 = LoadLibrary("kernel32.dll");
+
+ if (kernel32) {
+ pGetFinalPathNameByHandle = (gfpnh_func)GetProcAddress(kernel32, "GetFinalPathNameByHandleA");
+ if (pGetFinalPathNameByHandle == NULL) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Can't call GetFinalPathNameByHandleA");
+ RETURN_FALSE;
+ }
+ } else {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Can't call get a handle on kernel32.dll");
+ RETURN_FALSE;
+ }
+
+ if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &link, &link_len) == FAILURE) {
+ return;
+ }
+
+ if (OPENBASEDIR_CHECKPATH(link)) {
+ RETURN_FALSE;
+ }
+
+ hFile = CreateFile(link, // file to open
+ GENERIC_READ, // open for reading
+ FILE_SHARE_READ, // share for reading
+ NULL, // default security
+ OPEN_EXISTING, // existing file only
+ FILE_FLAG_BACKUP_SEMANTICS, // normal file
+ NULL); // no attr. template
+
+ if( hFile == INVALID_HANDLE_VALUE) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not open file (error %d)", GetLastError());
+ RETURN_FALSE;
+ }
+
+ dwRet = pGetFinalPathNameByHandle(hFile, Path, MAXPATHLEN, VOLUME_NAME_NT);
+ if(dwRet >= MAXPATHLEN) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Can't resolve the full path, the path exceeds the MAX_PATH_LEN (%d) limit", MAXPATHLEN);
+ RETURN_FALSE;
+ }
+
+ CloseHandle(hFile);
+
+ /* Append NULL to the end of the string */
+ Path[dwRet] = '\0';
+
+ RETURN_STRING(Path, 1);
+}
+/* }}} */
+
+/* {{{ proto int linkinfo(string filename)
+ Returns the st_dev field of the UNIX C stat structure describing the link */
+PHP_FUNCTION(linkinfo)
+{
+ char *link;
+ int link_len;
+ struct stat sb;
+ int ret;
+
+ if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &link, &link_len) == FAILURE) {
+ return;
+ }
+
+ ret = VCWD_STAT(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)
+ Create a symbolic link */
+PHP_FUNCTION(symlink)
+{
+ char *topath, *frompath;
+ int topath_len, frompath_len;
+ BOOLEAN ret;
+ char source_p[MAXPATHLEN];
+ char dest_p[MAXPATHLEN];
+ char dirname[MAXPATHLEN];
+ size_t len;
+ DWORD attr;
+ HINSTANCE kernel32;
+ typedef BOOLEAN (WINAPI *csla_func)( __in LPCSTR, __in LPCSTR, __in DWORD);
+ csla_func pCreateSymbolicLinkA;
+
+ kernel32 = LoadLibrary("kernel32.dll");
+
+ if (kernel32) {
+ pCreateSymbolicLinkA = (csla_func)GetProcAddress(kernel32, "CreateSymbolicLinkA");
+ if (pCreateSymbolicLinkA == NULL) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Can't call CreateSymbolicLinkA");
+ RETURN_FALSE;
+ }
+ } else {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Can't call get a handle on kernel32.dll");
+ RETURN_FALSE;
+ }
+
+ if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss", &topath, &topath_len, &frompath, &frompath_len) == FAILURE) {
+ return;
+ }
+
+ if (!expand_filepath(frompath, source_p TSRMLS_CC)) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "No such file or directory");
+ RETURN_FALSE;
+ }
+
+ memcpy(dirname, source_p, sizeof(source_p));
+ len = php_dirname(dirname, strlen(dirname));
+
+ if (!expand_filepath_ex(topath, dest_p, dirname, len 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 (OPENBASEDIR_CHECKPATH(dest_p)) {
+ RETURN_FALSE;
+ }
+
+ if (OPENBASEDIR_CHECKPATH(source_p)) {
+ RETURN_FALSE;
+ }
+
+ if ((attr = GetFileAttributes(topath)) == INVALID_FILE_ATTRIBUTES) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not fetch file information(error %d)", GetLastError());
+ RETURN_FALSE;
+ }
+
+ /* For the source, an expanded path must be used (in ZTS an other thread could have changed the CWD).
+ * For the target the exact string given by the user must be used, relative or not, existing or not.
+ * The target is relative to the link itself, not to the CWD. */
+ ret = pCreateSymbolicLinkA(source_p, topath, (attr & FILE_ATTRIBUTE_DIRECTORY ? 1 : 0));
+
+ if (!ret) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot create symlink, error code(%d)", GetLastError());
+ RETURN_FALSE;
+ }
+
+ RETURN_TRUE;
+}
+/* }}} */
+
+/* {{{ proto int link(string target, string link)
+ Create a hard link */
+PHP_FUNCTION(link)
+{
+ 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, "ss", &topath, &topath_len, &frompath, &frompath_len) == 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 (OPENBASEDIR_CHECKPATH(source_p)) {
+ RETURN_FALSE;
+ }
+
+ if (OPENBASEDIR_CHECKPATH(dest_p)) {
+ RETURN_FALSE;
+ }
+
+#ifndef ZTS
+ ret = CreateHardLinkA(topath, frompath, NULL);
+#else
+ ret = CreateHardLinkA(dest_p, source_p, NULL);
+#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
+ */
projects / php / commitdiff