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+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "apr.h"
+#include "apr_arch_file_io.h"
+#include "apr_strings.h"
+
+/* Win32 Exceptions:
+ *
+ * Note that trailing spaces and trailing periods are never recorded
+ * in the file system, except by a very obscure bug where any file
+ * that is created with a trailing space or period, followed by the
+ * ':' stream designator on an NTFS volume can never be accessed again.
+ * In other words, don't ever accept them when designating a stream!
+ *
+ * An interesting side effect is that two or three periods are both
+ * treated as the parent directory, although the fourth and on are
+ * not [strongly suggest all trailing periods are trimmed off, or
+ * down to two if there are no other characters.]
+ *
+ * Leading spaces and periods are accepted, however.
+ * The * ? < > codes all have wildcard side effects
+ * The " / \ : are exclusively component separator tokens
+ * The system doesn't accept | for any (known) purpose
+ * Oddly, \x7f _is_ acceptable ;)
+ */
+
+/* apr_c_is_fnchar[] maps Win32's file name and shell escape symbols
+ *
+ * element & 1 == valid file name character [excluding delimiters]
+ * element & 2 == character should be shell (caret) escaped from cmd.exe
+ *
+ * this must be in-sync with Apache httpd's gen_test_char.c for cgi escaping.
+ */
+
+const char apr_c_is_fnchar[256] =
+{/* Reject all ctrl codes... Escape \n and \r (ascii 10 and 13) */
+ 0,0,0,0,0,0,0,0,0,0,2,0,0,2,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+ /* ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ? */
+ 1,1,2,1,3,3,3,3,3,3,2,1,1,1,1,0, 1,1,1,1,1,1,1,1,1,1,0,3,2,1,2,2,
+ /* @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ \ ] ^ _ */
+ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,3,2,3,3,1,
+ /* ` a b c d e f g h i j k l m n o p q r s t u v w x y z { | } ~ */
+ 3,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,3,2,3,3,1,
+ /* High bit codes are accepted (subject to utf-8->Unicode xlation) */
+ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
+ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
+ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
+ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
+};
+
+
+apr_status_t filepath_root_test(char *path, apr_pool_t *p)
+{
+ apr_status_t rv;
+#if APR_HAS_UNICODE_FS
+ if (apr_os_level >= APR_WIN_NT)
+ {
+ apr_wchar_t wpath[APR_PATH_MAX];
+ if ((rv = utf8_to_unicode_path(wpath, sizeof(wpath)
+ / sizeof(apr_wchar_t), path)))
+ return rv;
+ rv = GetDriveTypeW(wpath);
+ }
+ else
+#endif
+ rv = GetDriveType(path);
+
+ if (rv == DRIVE_UNKNOWN || rv == DRIVE_NO_ROOT_DIR)
+ return APR_EBADPATH;
+ return APR_SUCCESS;
+}
+
+
+apr_status_t filepath_drive_get(char **rootpath, char drive,
+ apr_int32_t flags, apr_pool_t *p)
+{
+ char path[APR_PATH_MAX];
+#if APR_HAS_UNICODE_FS
+ IF_WIN_OS_IS_UNICODE
+ {
+ apr_wchar_t *ignored;
+ apr_wchar_t wdrive[8];
+ apr_wchar_t wpath[APR_PATH_MAX];
+ apr_status_t rv;
+ /* ???: This needs review, apparently "\\?\d:." returns "\\?\d:"
+ * as if that is useful for anything.
+ */
+ wcscpy(wdrive, L"D:.");
+ wdrive[0] = (apr_wchar_t)(unsigned char)drive;
+ if (!GetFullPathNameW(wdrive, sizeof(wpath) / sizeof(apr_wchar_t), wpath, &ignored))
+ return apr_get_os_error();
+ if ((rv = unicode_to_utf8_path(path, sizeof(path), wpath)))
+ return rv;
+ }
+#endif
+#if APR_HAS_ANSI_FS
+ ELSE_WIN_OS_IS_ANSI
+ {
+ char *ignored;
+ char drivestr[4];
+ drivestr[0] = drive;
+ drivestr[1] = ':';
+ drivestr[2] = '.';;
+ drivestr[3] = '\0';
+ if (!GetFullPathName(drivestr, sizeof(path), path, &ignored))
+ return apr_get_os_error();
+ }
+#endif
+ if (!(flags & APR_FILEPATH_NATIVE)) {
+ for (*rootpath = path; **rootpath; ++*rootpath) {
+ if (**rootpath == '\\')
+ **rootpath = '/';
+ }
+ }
+ *rootpath = apr_pstrdup(p, path);
+ return APR_SUCCESS;
+}
+
+
+apr_status_t filepath_root_case(char **rootpath, char *root, apr_pool_t *p)
+{
+#if APR_HAS_UNICODE_FS
+ IF_WIN_OS_IS_UNICODE
+ {
+ apr_wchar_t *ignored;
+ apr_wchar_t wpath[APR_PATH_MAX];
+ apr_status_t rv;
+ apr_wchar_t wroot[APR_PATH_MAX];
+ /* ???: This needs review, apparently "\\?\d:." returns "\\?\d:"
+ * as if that is useful for anything.
+ */
+ if ((rv = utf8_to_unicode_path(wroot, sizeof(wroot)
+ / sizeof(apr_wchar_t), root)))
+ return rv;
+ if (!GetFullPathNameW(wroot, sizeof(wpath) / sizeof(apr_wchar_t), wpath, &ignored))
+ return apr_get_os_error();
+
+ /* Borrow wroot as a char buffer (twice as big as necessary)
+ */
+ if ((rv = unicode_to_utf8_path((char*)wroot, sizeof(wroot), wpath)))
+ return rv;
+ *rootpath = apr_pstrdup(p, (char*)wroot);
+ }
+#endif
+#if APR_HAS_ANSI_FS
+ ELSE_WIN_OS_IS_ANSI
+ {
+ char path[APR_PATH_MAX];
+ char *ignored;
+ if (!GetFullPathName(root, sizeof(path), path, &ignored))
+ return apr_get_os_error();
+ *rootpath = apr_pstrdup(p, path);
+ }
+#endif
+ return APR_SUCCESS;
+}
+
+
+APR_DECLARE(apr_status_t) apr_filepath_get(char **rootpath, apr_int32_t flags,
+ apr_pool_t *p)
+{
+ char path[APR_PATH_MAX];
+#if APR_HAS_UNICODE_FS
+ IF_WIN_OS_IS_UNICODE
+ {
+ apr_wchar_t wpath[APR_PATH_MAX];
+ apr_status_t rv;
+ if (!GetCurrentDirectoryW(sizeof(wpath) / sizeof(apr_wchar_t), wpath))
+ return apr_get_os_error();
+ if ((rv = unicode_to_utf8_path(path, sizeof(path), wpath)))
+ return rv;
+ }
+#endif
+#if APR_HAS_ANSI_FS
+ ELSE_WIN_OS_IS_ANSI
+ {
+ if (!GetCurrentDirectory(sizeof(path), path))
+ return apr_get_os_error();
+ }
+#endif
+ if (!(flags & APR_FILEPATH_NATIVE)) {
+ for (*rootpath = path; **rootpath; ++*rootpath) {
+ if (**rootpath == '\\')
+ **rootpath = '/';
+ }
+ }
+ *rootpath = apr_pstrdup(p, path);
+ return APR_SUCCESS;
+}
+
+
+APR_DECLARE(apr_status_t) apr_filepath_set(const char *rootpath,
+ apr_pool_t *p)
+{
+#if APR_HAS_UNICODE_FS
+ IF_WIN_OS_IS_UNICODE
+ {
+ apr_wchar_t wpath[APR_PATH_MAX];
+ apr_status_t rv;
+ if ((rv = utf8_to_unicode_path(wpath, sizeof(wpath)
+ / sizeof(apr_wchar_t), rootpath)))
+ return rv;
+ if (!SetCurrentDirectoryW(wpath))
+ return apr_get_os_error();
+ }
+#endif
+#if APR_HAS_ANSI_FS
+ ELSE_WIN_OS_IS_ANSI
+ {
+ if (!SetCurrentDirectory(rootpath))
+ return apr_get_os_error();
+ }
+#endif
+ return APR_SUCCESS;
+}