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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_arch_file_io.h"
#include "apr_file_io.h"
#include "apr_general.h"
#include "apr_strings.h"
#include "apr_errno.h"
#ifdef HAVE_UTIME
#include <utime.h>
#endif
static apr_filetype_e filetype_from_mode(mode_t mode)
{
apr_filetype_e type;
switch (mode & S_IFMT) {
case S_IFREG:
type = APR_REG; break;
case S_IFDIR:
type = APR_DIR; break;
case S_IFLNK:
type = APR_LNK; break;
case S_IFCHR:
type = APR_CHR; break;
case S_IFBLK:
type = APR_BLK; break;
#if defined(S_IFFIFO)
case S_IFFIFO:
type = APR_PIPE; break;
#endif
#if !defined(BEOS) && defined(S_IFSOCK)
case S_IFSOCK:
type = APR_SOCK; break;
#endif
default:
/* Work around missing S_IFxxx values above
* for Linux et al.
*/
#if !defined(S_IFFIFO) && defined(S_ISFIFO)
if (S_ISFIFO(mode)) {
type = APR_PIPE;
} else
#endif
#if !defined(BEOS) && !defined(S_IFSOCK) && defined(S_ISSOCK)
if (S_ISSOCK(mode)) {
type = APR_SOCK;
} else
#endif
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->device = info->st_dev;
finfo->nlink = info->st_nlink;
/* Check for overflow if storing a 64-bit st_ino in a 32-bit
* apr_ino_t for LFS builds: */
if (sizeof(apr_ino_t) >= sizeof(info->st_ino)
|| (apr_ino_t)info->st_ino == info->st_ino) {
finfo->inode = info->st_ino;
} else {
finfo->valid &= ~APR_FINFO_INODE;
}
apr_time_ansi_put(&finfo->atime, info->st_atime);
#ifdef HAVE_STRUCT_STAT_ST_ATIM_TV_NSEC
finfo->atime += info->st_atim.tv_nsec / APR_TIME_C(1000);
#elif defined(HAVE_STRUCT_STAT_ST_ATIMENSEC)
finfo->atime += info->st_atimensec / APR_TIME_C(1000);
#elif defined(HAVE_STRUCT_STAT_ST_ATIME_N)
finfo->atime += info->st_atime_n / APR_TIME_C(1000);
#endif
apr_time_ansi_put(&finfo->mtime, info->st_mtime);
#ifdef HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
finfo->mtime += info->st_mtim.tv_nsec / APR_TIME_C(1000);
#elif defined(HAVE_STRUCT_STAT_ST_MTIMENSEC)
finfo->mtime += info->st_mtimensec / APR_TIME_C(1000);
#elif defined(HAVE_STRUCT_STAT_ST_MTIME_N)
finfo->mtime += info->st_mtime_n / APR_TIME_C(1000);
#endif
apr_time_ansi_put(&finfo->ctime, info->st_ctime);
#ifdef HAVE_STRUCT_STAT_ST_CTIM_TV_NSEC
finfo->ctime += info->st_ctim.tv_nsec / APR_TIME_C(1000);
#elif defined(HAVE_STRUCT_STAT_ST_CTIMENSEC)
finfo->ctime += info->st_ctimensec / APR_TIME_C(1000);
#elif defined(HAVE_STRUCT_STAT_ST_CTIME_N)
finfo->ctime += info->st_ctime_n / APR_TIME_C(1000);
#endif
#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) {
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);
}
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;
}
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;
if (wanted & APR_FINFO_LINK)
srv = lstat(fname, &info);
else
srv = stat(fname, &info);
if (srv == 0) {
finfo->pool = pool;
finfo->fname = fname;
fill_out_finfo(finfo, &info, wanted);
if (wanted & APR_FINFO_LINK)
wanted &= ~APR_FINFO_LINK;
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
}
}
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