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DEFINITIONS
This source file includes following definitions.
- filetype_from_mode
- fill_out_finfo
- apr_file_info_get_locked
- APR_DECLARE
- APR_DECLARE
- APR_DECLARE
- stat_cache_cleanup
- cstat
- APR_DECLARE
- APR_DECLARE
/* 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_arch_file_io.h"
#include "fsio.h"
#include "nks/dirio.h"
#include "apr_file_io.h"
#include "apr_general.h"
#include "apr_strings.h"
#include "apr_errno.h"
#include "apr_hash.h"
#include "apr_thread_rwlock.h"
#ifdef HAVE_UTIME_H
#include <utime.h>
#endif
#define APR_HAS_PSA
static apr_filetype_e filetype_from_mode(mode_t mode)
{
apr_filetype_e type = APR_NOFILE;
if (S_ISREG(mode))
type = APR_REG;
else if (S_ISDIR(mode))
type = APR_DIR;
else if (S_ISCHR(mode))
type = APR_CHR;
else if (S_ISBLK(mode))
type = APR_BLK;
else if (S_ISFIFO(mode))
type = APR_PIPE;
else if (S_ISLNK(mode))
type = APR_LNK;
else if (S_ISSOCK(mode))
type = APR_SOCK;
else
type = APR_UNKFILE;
return type;
}
static void fill_out_finfo(apr_finfo_t *finfo, struct stat *info,
apr_int32_t wanted)
{
finfo->valid = APR_FINFO_MIN | APR_FINFO_IDENT | APR_FINFO_NLINK
| APR_FINFO_OWNER | APR_FINFO_PROT;
finfo->protection = apr_unix_mode2perms(info->st_mode);
finfo->filetype = filetype_from_mode(info->st_mode);
finfo->user = info->st_uid;
finfo->group = info->st_gid;
finfo->size = info->st_size;
finfo->inode = info->st_ino;
finfo->device = info->st_dev;
finfo->nlink = info->st_nlink;
apr_time_ansi_put(&finfo->atime, info->st_atime.tv_sec);
apr_time_ansi_put(&finfo->mtime, info->st_mtime.tv_sec);
apr_time_ansi_put(&finfo->ctime, info->st_ctime.tv_sec);
#ifdef HAVE_STRUCT_STAT_ST_BLOCKS
#ifdef DEV_BSIZE
finfo->csize = (apr_off_t)info->st_blocks * (apr_off_t)DEV_BSIZE;
#else
finfo->csize = (apr_off_t)info->st_blocks * (apr_off_t)512;
#endif
finfo->valid |= APR_FINFO_CSIZE;
#endif
}
apr_status_t apr_file_info_get_locked(apr_finfo_t *finfo, apr_int32_t wanted,
apr_file_t *thefile)
{
struct_stat info;
if (thefile->buffered) {
apr_status_t rv = apr_file_flush_locked(thefile);
if (rv != APR_SUCCESS)
return rv;
}
if (fstat(thefile->filedes, &info) == 0) {
finfo->pool = thefile->pool;
finfo->fname = thefile->fname;
fill_out_finfo(finfo, &info, wanted);
return (wanted & ~finfo->valid) ? APR_INCOMPLETE : APR_SUCCESS;
}
else {
return errno;
}
}
APR_DECLARE(apr_status_t) apr_file_info_get(apr_finfo_t *finfo,
apr_int32_t wanted,
apr_file_t *thefile)
{
struct stat info;
if (thefile->buffered) {
/* XXX: flush here is not mutex protected */
apr_status_t rv = apr_file_flush(thefile);
if (rv != APR_SUCCESS)
return rv;
}
if (fstat(thefile->filedes, &info) == 0) {
finfo->pool = thefile->pool;
finfo->fname = thefile->fname;
fill_out_finfo(finfo, &info, wanted);
return (wanted & ~finfo->valid) ? APR_INCOMPLETE : APR_SUCCESS;
}
else {
return errno;
}
}
APR_DECLARE(apr_status_t) apr_file_perms_set(const char *fname,
apr_fileperms_t perms)
{
mode_t mode = apr_unix_perms2mode(perms);
if (chmod(fname, mode) == -1)
return errno;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_file_attrs_set(const char *fname,
apr_fileattrs_t attributes,
apr_fileattrs_t attr_mask,
apr_pool_t *pool)
{
apr_status_t status;
apr_finfo_t finfo;
/* Don't do anything if we can't handle the requested attributes */
if (!(attr_mask & (APR_FILE_ATTR_READONLY
| APR_FILE_ATTR_EXECUTABLE)))
return APR_SUCCESS;
status = apr_stat(&finfo, fname, APR_FINFO_PROT, pool);
if (status)
return status;
/* ### TODO: should added bits be umask'd? */
if (attr_mask & APR_FILE_ATTR_READONLY)
{
if (attributes & APR_FILE_ATTR_READONLY)
{
finfo.protection &= ~APR_UWRITE;
finfo.protection &= ~APR_GWRITE;
finfo.protection &= ~APR_WWRITE;
}
else
{
/* ### umask this! */
finfo.protection |= APR_UWRITE;
finfo.protection |= APR_GWRITE;
finfo.protection |= APR_WWRITE;
}
}
if (attr_mask & APR_FILE_ATTR_EXECUTABLE)
{
if (attributes & APR_FILE_ATTR_EXECUTABLE)
{
/* ### umask this! */
finfo.protection |= APR_UEXECUTE;
finfo.protection |= APR_GEXECUTE;
finfo.protection |= APR_WEXECUTE;
}
else
{
finfo.protection &= ~APR_UEXECUTE;
finfo.protection &= ~APR_GEXECUTE;
finfo.protection &= ~APR_WEXECUTE;
}
}
return apr_file_perms_set(fname, finfo.protection);
}
#ifndef APR_HAS_PSA
static apr_status_t stat_cache_cleanup(void *data)
{
apr_pool_t *p = (apr_pool_t *)getGlobalPool();
apr_hash_index_t *hi;
apr_hash_t *statCache = (apr_hash_t*)data;
char *key;
apr_ssize_t keylen;
NXPathCtx_t pathctx;
for (hi = apr_hash_first(p, statCache); hi; hi = apr_hash_next(hi)) {
apr_hash_this(hi, (const void**)&key, &keylen, (void**)&pathctx);
if (pathctx) {
NXFreePathContext(pathctx);
}
}
return APR_SUCCESS;
}
int cstat (NXPathCtx_t ctx, char *path, struct stat *buf, unsigned long requestmap, apr_pool_t *p)
{
apr_pool_t *gPool = (apr_pool_t *)getGlobalPool();
apr_hash_t *statCache = NULL;
apr_thread_rwlock_t *rwlock = NULL;
NXPathCtx_t pathctx = 0;
char *ptr = NULL, *tr;
int len = 0, x;
char *ppath;
char *pinfo;
if (ctx == 1) {
/* If there isn't a global pool then just stat the file
and return */
if (!gPool) {
char poolname[50];
if (apr_pool_create(&gPool, NULL) != APR_SUCCESS) {
return getstat(ctx, path, buf, requestmap);
}
setGlobalPool(gPool);
apr_pool_tag(gPool, apr_pstrdup(gPool, "cstat_mem_pool"));
statCache = apr_hash_make(gPool);
apr_pool_userdata_set ((void*)statCache, "STAT_CACHE", stat_cache_cleanup, gPool);
apr_thread_rwlock_create(&rwlock, gPool);
apr_pool_userdata_set ((void*)rwlock, "STAT_CACHE_LOCK", apr_pool_cleanup_null, gPool);
}
else {
apr_pool_userdata_get((void**)&statCache, "STAT_CACHE", gPool);
apr_pool_userdata_get((void**)&rwlock, "STAT_CACHE_LOCK", gPool);
}
if (!gPool || !statCache || !rwlock) {
return getstat(ctx, path, buf, requestmap);
}
for (x = 0,tr = path;*tr != '\0';tr++,x++) {
if (*tr == '\\' || *tr == '/') {
ptr = tr;
len = x;
}
if (*tr == ':') {
ptr = "\\";
len = x;
}
}
if (ptr) {
ppath = apr_pstrndup (p, path, len);
strlwr(ppath);
if (ptr[1] != '\0') {
ptr++;
}
/* If the path ended in a trailing slash then our result path
will be a single slash. To avoid stat'ing the root with a
slash, we need to make sure we stat the current directory
with a dot */
if (((*ptr == '/') || (*ptr == '\\')) && (*(ptr+1) == '\0')) {
pinfo = apr_pstrdup (p, ".");
}
else {
pinfo = apr_pstrdup (p, ptr);
}
}
/* If we have a statCache then try to pull the information
from the cache. Otherwise just stat the file and return.*/
if (statCache) {
apr_thread_rwlock_rdlock(rwlock);
pathctx = (NXPathCtx_t) apr_hash_get(statCache, ppath, APR_HASH_KEY_STRING);
apr_thread_rwlock_unlock(rwlock);
if (pathctx) {
return getstat(pathctx, pinfo, buf, requestmap);
}
else {
int err;
err = NXCreatePathContext(0, ppath, 0, NULL, &pathctx);
if (!err) {
apr_thread_rwlock_wrlock(rwlock);
apr_hash_set(statCache, apr_pstrdup(gPool,ppath) , APR_HASH_KEY_STRING, (void*)pathctx);
apr_thread_rwlock_unlock(rwlock);
return getstat(pathctx, pinfo, buf, requestmap);
}
}
}
}
return getstat(ctx, path, buf, requestmap);
}
#endif
APR_DECLARE(apr_status_t) apr_stat(apr_finfo_t *finfo,
const char *fname,
apr_int32_t wanted, apr_pool_t *pool)
{
struct stat info;
int srv;
NXPathCtx_t pathCtx = 0;
getcwdpath(NULL, &pathCtx, CTX_ACTUAL_CWD);
#ifdef APR_HAS_PSA
srv = getstat(pathCtx, (char*)fname, &info, ST_STAT_BITS|ST_NAME_BIT);
#else
srv = cstat(pathCtx, (char*)fname, &info, ST_STAT_BITS|ST_NAME_BIT, pool);
#endif
errno = srv;
if (srv == 0) {
finfo->pool = pool;
finfo->fname = fname;
fill_out_finfo(finfo, &info, wanted);
if (wanted & APR_FINFO_LINK)
wanted &= ~APR_FINFO_LINK;
if (wanted & APR_FINFO_NAME) {
finfo->name = apr_pstrdup(pool, info.st_name);
finfo->valid |= APR_FINFO_NAME;
}
return (wanted & ~finfo->valid) ? APR_INCOMPLETE : APR_SUCCESS;
}
else {
#if !defined(ENOENT) || !defined(ENOTDIR)
#error ENOENT || ENOTDIR not defined; please see the
#error comments at this line in the source for a workaround.
/*
* If ENOENT || ENOTDIR is not defined in one of the your OS's
* include files, APR cannot report a good reason why the stat()
* of the file failed; there are cases where it can fail even though
* the file exists. This opens holes in Apache, for example, because
* it becomes possible for someone to get a directory listing of a
* directory even though there is an index (eg. index.html) file in
* it. If you do not have a problem with this, delete the above
* #error lines and start the compile again. If you need to do this,
* please submit a bug report to http://www.apache.org/bug_report.html
* letting us know that you needed to do this. Please be sure to
* include the operating system you are using.
*/
/* WARNING: All errors will be handled as not found
*/
#if !defined(ENOENT)
return APR_ENOENT;
#else
/* WARNING: All errors but not found will be handled as not directory
*/
if (errno != ENOENT)
return APR_ENOENT;
else
return errno;
#endif
#else /* All was defined well, report the usual: */
return errno;
#endif
}
}
APR_DECLARE(apr_status_t) apr_file_mtime_set(const char *fname,
apr_time_t mtime,
apr_pool_t *pool)
{
apr_status_t status;
apr_finfo_t finfo;
status = apr_stat(&finfo, fname, APR_FINFO_ATIME, pool);
if (status) {
return status;
}
#ifdef HAVE_UTIMES
{
struct timeval tvp[2];
tvp[0].tv_sec = apr_time_sec(finfo.atime);
tvp[0].tv_usec = apr_time_usec(finfo.atime);
tvp[1].tv_sec = apr_time_sec(mtime);
tvp[1].tv_usec = apr_time_usec(mtime);
if (utimes(fname, tvp) == -1) {
return errno;
}
}
#elif defined(HAVE_UTIME)
{
struct utimbuf buf;
buf.actime = (time_t) (finfo.atime / APR_USEC_PER_SEC);
buf.modtime = (time_t) (mtime / APR_USEC_PER_SEC);
if (utime(fname, &buf) == -1) {
return errno;
}
}
#else
return APR_ENOTIMPL;
#endif
return APR_SUCCESS;
}