394 lines
12 KiB
C
394 lines
12 KiB
C
/* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "fspr.h"
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#include "fspr_arch_file_io.h"
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#include "fspr_file_io.h"
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#include "fspr_strings.h"
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#include "fspr_portable.h"
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#include "fspr_arch_atime.h"
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#if APR_HAVE_ERRNO_H
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#include <errno.h>
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#endif
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#if APR_HAVE_STRING_H
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#include <string.h>
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#endif
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#if APR_HAVE_DIRENT_H
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#include <dirent.h>
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#endif
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#ifdef HAVE_SYS_STAT_H
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#include <sys/stat.h>
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#endif
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static fspr_status_t dir_cleanup(void *thedir)
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{
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fspr_dir_t *dir = thedir;
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if (dir->dirhand != INVALID_HANDLE_VALUE && !FindClose(dir->dirhand)) {
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return fspr_get_os_error();
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}
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dir->dirhand = INVALID_HANDLE_VALUE;
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return APR_SUCCESS;
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}
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APR_DECLARE(fspr_status_t) fspr_dir_open(fspr_dir_t **new, const char *dirname,
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fspr_pool_t *pool)
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{
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fspr_status_t rv;
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fspr_size_t len = strlen(dirname);
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(*new) = fspr_pcalloc(pool, sizeof(fspr_dir_t));
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/* Leave room here to add and pop the '*' wildcard for FindFirstFile
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* and double-null terminate so we have one character to change.
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*/
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(*new)->dirname = fspr_palloc(pool, len + 3);
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memcpy((*new)->dirname, dirname, len);
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if (len && (*new)->dirname[len - 1] != '/') {
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(*new)->dirname[len++] = '/';
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}
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(*new)->dirname[len++] = '\0';
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(*new)->dirname[len] = '\0';
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#if APR_HAS_UNICODE_FS
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IF_WIN_OS_IS_UNICODE
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{
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/* Create a buffer for the longest file name we will ever see
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*/
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(*new)->w.entry = fspr_pcalloc(pool, sizeof(WIN32_FIND_DATAW));
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(*new)->name = fspr_pcalloc(pool, APR_FILE_MAX * 3 + 1);
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}
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#endif
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#if APR_HAS_ANSI_FS
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ELSE_WIN_OS_IS_ANSI
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{
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/* Note that we won't open a directory that is greater than MAX_PATH,
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* including the trailing /* wildcard suffix. If a * won't fit, then
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* neither will any other file name within the directory.
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* The length not including the trailing '*' is stored as rootlen, to
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* skip over all paths which are too long.
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*/
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if (len >= APR_PATH_MAX) {
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(*new) = NULL;
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return APR_ENAMETOOLONG;
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}
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(*new)->n.entry = fspr_pcalloc(pool, sizeof(WIN32_FIND_DATAW));
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}
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#endif
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(*new)->rootlen = len - 1;
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(*new)->pool = pool;
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(*new)->dirhand = INVALID_HANDLE_VALUE;
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fspr_pool_cleanup_register((*new)->pool, (void *)(*new), dir_cleanup,
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fspr_pool_cleanup_null);
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rv = fspr_dir_read(NULL, 0, *new);
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if (rv != APR_SUCCESS) {
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dir_cleanup(*new);
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*new = NULL;
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}
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return rv;
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}
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APR_DECLARE(fspr_status_t) fspr_dir_close(fspr_dir_t *dir)
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{
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fspr_pool_cleanup_kill(dir->pool, dir, dir_cleanup);
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return dir_cleanup(dir);
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}
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APR_DECLARE(fspr_status_t) fspr_dir_read(fspr_finfo_t *finfo, fspr_int32_t wanted,
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fspr_dir_t *thedir)
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{
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fspr_status_t rv;
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char *fname;
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/* The while loops below allow us to skip all invalid file names, so that
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* we aren't reporting any files where their absolute paths are too long.
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*/
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#if APR_HAS_UNICODE_FS
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fspr_wchar_t wdirname[APR_PATH_MAX];
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fspr_wchar_t *eos = NULL;
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IF_WIN_OS_IS_UNICODE
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{
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/* This code path is always be invoked by fspr_dir_open or
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* fspr_dir_rewind, so return without filling out the finfo.
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*/
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if (thedir->dirhand == INVALID_HANDLE_VALUE)
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{
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fspr_status_t rv;
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if (rv = utf8_to_unicode_path(wdirname, sizeof(wdirname)
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/ sizeof(fspr_wchar_t),
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thedir->dirname)) {
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return rv;
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}
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eos = wcschr(wdirname, '\0');
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eos[0] = '*';
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eos[1] = '\0';
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thedir->dirhand = FindFirstFileW(wdirname, thedir->w.entry);
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eos[0] = '\0';
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if (thedir->dirhand == INVALID_HANDLE_VALUE) {
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return fspr_get_os_error();
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}
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thedir->bof = 1;
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return APR_SUCCESS;
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}
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else if (thedir->bof) {
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/* Noop - we already called FindFirstFileW from
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* either fspr_dir_open or fspr_dir_rewind ... use
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* that first record.
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*/
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thedir->bof = 0;
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}
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else if (!FindNextFileW(thedir->dirhand, thedir->w.entry)) {
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return fspr_get_os_error();
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}
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while (thedir->rootlen &&
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thedir->rootlen + wcslen(thedir->w.entry->cFileName) >= APR_PATH_MAX)
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{
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if (!FindNextFileW(thedir->dirhand, thedir->w.entry)) {
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return fspr_get_os_error();
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}
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}
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if (rv = unicode_to_utf8_path(thedir->name, APR_FILE_MAX * 3 + 1,
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thedir->w.entry->cFileName))
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return rv;
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fname = thedir->name;
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}
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#endif
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#if APR_HAS_ANSI_FS
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ELSE_WIN_OS_IS_ANSI
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{
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/* This code path is always be invoked by fspr_dir_open or
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* fspr_dir_rewind, so return without filling out the finfo.
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*/
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if (thedir->dirhand == INVALID_HANDLE_VALUE) {
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/* '/' terminated, so add the '*' and pop it when we finish */
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char *eop = strchr(thedir->dirname, '\0');
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eop[0] = '*';
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eop[1] = '\0';
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thedir->dirhand = FindFirstFileA(thedir->dirname,
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thedir->n.entry);
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eop[0] = '\0';
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if (thedir->dirhand == INVALID_HANDLE_VALUE) {
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return fspr_get_os_error();
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}
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thedir->bof = 1;
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return APR_SUCCESS;
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}
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else if (thedir->bof) {
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/* Noop - we already called FindFirstFileW from
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* either fspr_dir_open or fspr_dir_rewind ... use
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* that first record.
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*/
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thedir->bof = 0;
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}
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else if (!FindNextFile(thedir->dirhand, thedir->n.entry)) {
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return fspr_get_os_error();
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}
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while (thedir->rootlen &&
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thedir->rootlen + strlen(thedir->n.entry->cFileName) >= MAX_PATH)
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{
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if (!FindNextFileW(thedir->dirhand, thedir->w.entry)) {
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return fspr_get_os_error();
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}
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}
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fname = thedir->n.entry->cFileName;
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}
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#endif
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fillin_fileinfo(finfo, (WIN32_FILE_ATTRIBUTE_DATA *) thedir->w.entry,
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0, wanted);
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finfo->pool = thedir->pool;
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finfo->valid |= APR_FINFO_NAME;
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finfo->name = fname;
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if (wanted &= ~finfo->valid) {
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/* Go back and get more_info if we can't answer the whole inquiry
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*/
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#if APR_HAS_UNICODE_FS
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IF_WIN_OS_IS_UNICODE
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{
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/* Almost all our work is done. Tack on the wide file name
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* to the end of the wdirname (already / delimited)
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*/
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if (!eos)
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eos = wcschr(wdirname, '\0');
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wcscpy(eos, thedir->w.entry->cFileName);
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rv = more_finfo(finfo, wdirname, wanted, MORE_OF_WFSPEC);
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eos[0] = '\0';
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return rv;
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}
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#endif
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#if APR_HAS_ANSI_FS
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ELSE_WIN_OS_IS_ANSI
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{
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#if APR_HAS_UNICODE_FS
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/* Don't waste stack space on a second buffer, the one we set
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* aside for the wide directory name is twice what we need.
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*/
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char *fspec = (char*)wdirname;
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#else
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char fspec[APR_PATH_MAX];
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#endif
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fspr_size_t dirlen = strlen(thedir->dirname);
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if (dirlen >= sizeof(fspec))
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dirlen = sizeof(fspec) - 1;
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fspr_cpystrn(fspec, thedir->dirname, sizeof(fspec));
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fspr_cpystrn(fspec + dirlen, fname, sizeof(fspec) - dirlen);
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return more_finfo(finfo, fspec, wanted, MORE_OF_FSPEC);
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}
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#endif
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}
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return APR_SUCCESS;
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}
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APR_DECLARE(fspr_status_t) fspr_dir_rewind(fspr_dir_t *dir)
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{
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fspr_status_t rv;
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/* this will mark the handle as invalid and we'll open it
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* again if fspr_dir_read() is subsequently called
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*/
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rv = dir_cleanup(dir);
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if (rv == APR_SUCCESS)
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rv = fspr_dir_read(NULL, 0, dir);
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return rv;
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}
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APR_DECLARE(fspr_status_t) fspr_dir_make(const char *path, fspr_fileperms_t perm,
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fspr_pool_t *pool)
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{
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#if APR_HAS_UNICODE_FS
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IF_WIN_OS_IS_UNICODE
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{
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fspr_wchar_t wpath[APR_PATH_MAX];
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fspr_status_t rv;
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if (rv = utf8_to_unicode_path(wpath, sizeof(wpath)
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/ sizeof(fspr_wchar_t), path)) {
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return rv;
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}
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if (!CreateDirectoryW(wpath, NULL)) {
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return fspr_get_os_error();
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}
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}
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#endif
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#if APR_HAS_ANSI_FS
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ELSE_WIN_OS_IS_ANSI
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if (!CreateDirectory(path, NULL)) {
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return fspr_get_os_error();
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}
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#endif
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return APR_SUCCESS;
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}
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static fspr_status_t dir_make_parent(char *path,
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fspr_fileperms_t perm,
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fspr_pool_t *pool)
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{
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fspr_status_t rv;
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char *ch = strrchr(path, '\\');
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if (!ch) {
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return APR_ENOENT;
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}
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*ch = '\0';
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rv = fspr_dir_make (path, perm, pool); /* Try to make straight off */
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if (APR_STATUS_IS_ENOENT(rv)) { /* Missing an intermediate dir */
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rv = dir_make_parent(path, perm, pool);
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if (rv == APR_SUCCESS) {
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rv = fspr_dir_make (path, perm, pool); /* And complete the path */
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}
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}
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*ch = '\\'; /* Always replace the slash before returning */
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return rv;
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}
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APR_DECLARE(fspr_status_t) fspr_dir_make_recursive(const char *path,
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fspr_fileperms_t perm,
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fspr_pool_t *pool)
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{
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fspr_status_t rv = 0;
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rv = fspr_dir_make (path, perm, pool); /* Try to make PATH right out */
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if (APR_STATUS_IS_EEXIST(rv)) /* It's OK if PATH exists */
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return APR_SUCCESS;
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if (APR_STATUS_IS_ENOENT(rv)) { /* Missing an intermediate dir */
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char *dir;
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rv = fspr_filepath_merge(&dir, "", path, APR_FILEPATH_NATIVE, pool);
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if (rv == APR_SUCCESS)
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rv = dir_make_parent(dir, perm, pool); /* Make intermediate dirs */
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if (rv == APR_SUCCESS)
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rv = fspr_dir_make (dir, perm, pool); /* And complete the path */
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}
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return rv;
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}
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APR_DECLARE(fspr_status_t) fspr_dir_remove(const char *path, fspr_pool_t *pool)
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{
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#if APR_HAS_UNICODE_FS
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IF_WIN_OS_IS_UNICODE
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{
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fspr_wchar_t wpath[APR_PATH_MAX];
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fspr_status_t rv;
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if (rv = utf8_to_unicode_path(wpath, sizeof(wpath)
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/ sizeof(fspr_wchar_t), path)) {
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return rv;
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}
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if (!RemoveDirectoryW(wpath)) {
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return fspr_get_os_error();
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}
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}
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#endif
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#if APR_HAS_ANSI_FS
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ELSE_WIN_OS_IS_ANSI
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if (!RemoveDirectory(path)) {
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return fspr_get_os_error();
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}
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#endif
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return APR_SUCCESS;
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}
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APR_DECLARE(fspr_status_t) fspr_os_dir_get(fspr_os_dir_t **thedir,
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fspr_dir_t *dir)
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{
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if (dir == NULL) {
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return APR_ENODIR;
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}
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*thedir = dir->dirhand;
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return APR_SUCCESS;
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}
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APR_DECLARE(fspr_status_t) fspr_os_dir_put(fspr_dir_t **dir,
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fspr_os_dir_t *thedir,
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fspr_pool_t *pool)
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{
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return APR_ENOTIMPL;
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}
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