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Diffstat (limited to 'file_io/win32/filesys.c')
| -rw-r--r-- | file_io/win32/filesys.c | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/file_io/win32/filesys.c b/file_io/win32/filesys.c new file mode 100644 index 0000000..e812139 --- /dev/null +++ b/file_io/win32/filesys.c @@ -0,0 +1,229 @@ +/* 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; +} |