/* 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_file_io.h" #include "apr_strings.h" #include "apr_portable.h" #include "apr_arch_atime.h" #if APR_HAVE_ERRNO_H #include <errno.h> #endif #if APR_HAVE_STRING_H #include <string.h> #endif #if APR_HAVE_DIRENT_H #include <dirent.h> #endif #ifdef HAVE_SYS_STAT_H #include <sys/stat.h> #endif static apr_status_t dir_cleanup(void *thedir) { apr_dir_t *dir = thedir; if (dir->dirhand != INVALID_HANDLE_VALUE && !FindClose(dir->dirhand)) { return apr_get_os_error(); } dir->dirhand = INVALID_HANDLE_VALUE; return APR_SUCCESS; } APR_DECLARE(apr_status_t) apr_dir_open(apr_dir_t **new, const char *dirname, apr_pool_t *pool) { apr_status_t rv; apr_size_t len = strlen(dirname); (*new) = apr_pcalloc(pool, sizeof(apr_dir_t)); /* Leave room here to add and pop the '*' wildcard for FindFirstFile * and double-null terminate so we have one character to change. */ (*new)->dirname = apr_palloc(pool, len + 3); memcpy((*new)->dirname, dirname, len); if (len && (*new)->dirname[len - 1] != '/') { (*new)->dirname[len++] = '/'; } (*new)->dirname[len++] = '\0'; (*new)->dirname[len] = '\0'; #if APR_HAS_UNICODE_FS IF_WIN_OS_IS_UNICODE { /* Create a buffer for the longest file name we will ever see */ (*new)->w.entry = apr_pcalloc(pool, sizeof(WIN32_FIND_DATAW)); (*new)->name = apr_pcalloc(pool, APR_FILE_MAX * 3 + 1); } #endif #if APR_HAS_ANSI_FS ELSE_WIN_OS_IS_ANSI { /* Note that we won't open a directory that is greater than MAX_PATH, * including the trailing /* wildcard suffix. If a * won't fit, then * neither will any other file name within the directory. * The length not including the trailing '*' is stored as rootlen, to * skip over all paths which are too long. */ if (len >= APR_PATH_MAX) { (*new) = NULL; return APR_ENAMETOOLONG; } (*new)->n.entry = apr_pcalloc(pool, sizeof(WIN32_FIND_DATAW)); } #endif (*new)->rootlen = len - 1; (*new)->pool = pool; (*new)->dirhand = INVALID_HANDLE_VALUE; apr_pool_cleanup_register((*new)->pool, (void *)(*new), dir_cleanup, apr_pool_cleanup_null); rv = apr_dir_read(NULL, 0, *new); if (rv != APR_SUCCESS) { dir_cleanup(*new); *new = NULL; } return rv; } APR_DECLARE(apr_status_t) apr_dir_close(apr_dir_t *dir) { apr_pool_cleanup_kill(dir->pool, dir, dir_cleanup); return dir_cleanup(dir); } APR_DECLARE(apr_status_t) apr_dir_read(apr_finfo_t *finfo, apr_int32_t wanted, apr_dir_t *thedir) { apr_status_t rv; char *fname; /* The while loops below allow us to skip all invalid file names, so that * we aren't reporting any files where their absolute paths are too long. */ #if APR_HAS_UNICODE_FS apr_wchar_t wdirname[APR_PATH_MAX]; apr_wchar_t *eos = NULL; IF_WIN_OS_IS_UNICODE { /* This code path is always be invoked by apr_dir_open or * apr_dir_rewind, so return without filling out the finfo. */ if (thedir->dirhand == INVALID_HANDLE_VALUE) { apr_status_t rv; if (rv = utf8_to_unicode_path(wdirname, sizeof(wdirname) / sizeof(apr_wchar_t), thedir->dirname)) { return rv; } eos = wcschr(wdirname, '\0'); eos[0] = '*'; eos[1] = '\0'; thedir->dirhand = FindFirstFileW(wdirname, thedir->w.entry); eos[0] = '\0'; if (thedir->dirhand == INVALID_HANDLE_VALUE) { return apr_get_os_error(); } thedir->bof = 1; return APR_SUCCESS; } else if (thedir->bof) { /* Noop - we already called FindFirstFileW from * either apr_dir_open or apr_dir_rewind ... use * that first record. */ thedir->bof = 0; } else if (!FindNextFileW(thedir->dirhand, thedir->w.entry)) { return apr_get_os_error(); } while (thedir->rootlen && thedir->rootlen + wcslen(thedir->w.entry->cFileName) >= APR_PATH_MAX) { if (!FindNextFileW(thedir->dirhand, thedir->w.entry)) { return apr_get_os_error(); } } if (rv = unicode_to_utf8_path(thedir->name, APR_FILE_MAX * 3 + 1, thedir->w.entry->cFileName)) return rv; fname = thedir->name; } #endif #if APR_HAS_ANSI_FS ELSE_WIN_OS_IS_ANSI { /* This code path is always be invoked by apr_dir_open or * apr_dir_rewind, so return without filling out the finfo. */ if (thedir->dirhand == INVALID_HANDLE_VALUE) { /* '/' terminated, so add the '*' and pop it when we finish */ char *eop = strchr(thedir->dirname, '\0'); eop[0] = '*'; eop[1] = '\0'; thedir->dirhand = FindFirstFileA(thedir->dirname, thedir->n.entry); eop[0] = '\0'; if (thedir->dirhand == INVALID_HANDLE_VALUE) { return apr_get_os_error(); } thedir->bof = 1; return APR_SUCCESS; } else if (thedir->bof) { /* Noop - we already called FindFirstFileW from * either apr_dir_open or apr_dir_rewind ... use * that first record. */ thedir->bof = 0; } else if (!FindNextFileA(thedir->dirhand, thedir->n.entry)) { return apr_get_os_error(); } while (thedir->rootlen && thedir->rootlen + strlen(thedir->n.entry->cFileName) >= MAX_PATH) { if (!FindNextFileA(thedir->dirhand, thedir->n.entry)) { return apr_get_os_error(); } } fname = thedir->n.entry->cFileName; } #endif fillin_fileinfo(finfo, (WIN32_FILE_ATTRIBUTE_DATA *) thedir->w.entry, 0, wanted); finfo->pool = thedir->pool; finfo->valid |= APR_FINFO_NAME; finfo->name = fname; if (wanted &= ~finfo->valid) { /* Go back and get more_info if we can't answer the whole inquiry */ #if APR_HAS_UNICODE_FS IF_WIN_OS_IS_UNICODE { /* Almost all our work is done. Tack on the wide file name * to the end of the wdirname (already / delimited) */ if (!eos) eos = wcschr(wdirname, '\0'); wcscpy(eos, thedir->w.entry->cFileName); rv = more_finfo(finfo, wdirname, wanted, MORE_OF_WFSPEC); eos[0] = '\0'; return rv; } #endif #if APR_HAS_ANSI_FS ELSE_WIN_OS_IS_ANSI { #if APR_HAS_UNICODE_FS /* Don't waste stack space on a second buffer, the one we set * aside for the wide directory name is twice what we need. */ char *fspec = (char*)wdirname; #else char fspec[APR_PATH_MAX]; #endif apr_size_t dirlen = strlen(thedir->dirname); if (dirlen >= sizeof(fspec)) dirlen = sizeof(fspec) - 1; apr_cpystrn(fspec, thedir->dirname, sizeof(fspec)); apr_cpystrn(fspec + dirlen, fname, sizeof(fspec) - dirlen); return more_finfo(finfo, fspec, wanted, MORE_OF_FSPEC); } #endif } return APR_SUCCESS; } APR_DECLARE(apr_status_t) apr_dir_rewind(apr_dir_t *dir) { apr_status_t rv; /* this will mark the handle as invalid and we'll open it * again if apr_dir_read() is subsequently called */ rv = dir_cleanup(dir); if (rv == APR_SUCCESS) rv = apr_dir_read(NULL, 0, dir); return rv; } APR_DECLARE(apr_status_t) apr_dir_make(const char *path, apr_fileperms_t perm, apr_pool_t *pool) { #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), path)) { return rv; } if (!CreateDirectoryW(wpath, NULL)) { return apr_get_os_error(); } } #endif #if APR_HAS_ANSI_FS ELSE_WIN_OS_IS_ANSI if (!CreateDirectory(path, NULL)) { return apr_get_os_error(); } #endif return APR_SUCCESS; } static apr_status_t dir_make_parent(char *path, apr_fileperms_t perm, apr_pool_t *pool) { apr_status_t rv; char *ch = strrchr(path, '\\'); if (!ch) { return APR_ENOENT; } *ch = '\0'; rv = apr_dir_make (path, perm, pool); /* Try to make straight off */ if (APR_STATUS_IS_ENOENT(rv)) { /* Missing an intermediate dir */ rv = dir_make_parent(path, perm, pool); if (rv == APR_SUCCESS) { rv = apr_dir_make (path, perm, pool); /* And complete the path */ } } *ch = '\\'; /* Always replace the slash before returning */ return rv; } APR_DECLARE(apr_status_t) apr_dir_make_recursive(const char *path, apr_fileperms_t perm, apr_pool_t *pool) { apr_status_t rv = 0; rv = apr_dir_make (path, perm, pool); /* Try to make PATH right out */ if (APR_STATUS_IS_EEXIST(rv)) /* It's OK if PATH exists */ return APR_SUCCESS; if (APR_STATUS_IS_ENOENT(rv)) { /* Missing an intermediate dir */ char *dir; rv = apr_filepath_merge(&dir, "", path, APR_FILEPATH_NATIVE, pool); if (rv == APR_SUCCESS) rv = dir_make_parent(dir, perm, pool); /* Make intermediate dirs */ if (rv == APR_SUCCESS) rv = apr_dir_make (dir, perm, pool); /* And complete the path */ } return rv; } APR_DECLARE(apr_status_t) apr_dir_remove(const char *path, apr_pool_t *pool) { #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), path)) { return rv; } if (!RemoveDirectoryW(wpath)) { return apr_get_os_error(); } } #endif #if APR_HAS_ANSI_FS ELSE_WIN_OS_IS_ANSI if (!RemoveDirectory(path)) { return apr_get_os_error(); } #endif return APR_SUCCESS; } APR_DECLARE(apr_status_t) apr_os_dir_get(apr_os_dir_t **thedir, apr_dir_t *dir) { if (dir == NULL) { return APR_ENODIR; } *thedir = dir->dirhand; return APR_SUCCESS; } APR_DECLARE(apr_status_t) apr_os_dir_put(apr_dir_t **dir, apr_os_dir_t *thedir, apr_pool_t *pool) { return APR_ENOTIMPL; }
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