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/* Copyright 2000-2005 The Apache Software Foundation or its licensors, as
* applicable.
*
* Licensed 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_strings.h"
#include "apr_portable.h"
#include "apr_thread_mutex.h"
#include "apr_arch_inherit.h"
#ifdef NETWARE
#include "nks/dirio.h"
#include "apr_hash.h"
#include "fsio.h"
#endif
apr_status_t apr_unix_file_cleanup(void *thefile)
{
apr_file_t *file = thefile;
apr_status_t flush_rv = APR_SUCCESS, rv = APR_SUCCESS;
if (file->buffered) {
flush_rv = apr_file_flush(file);
}
if (close(file->filedes) == 0) {
file->filedes = -1;
if (file->flags & APR_DELONCLOSE) {
unlink(file->fname);
}
#if APR_HAS_THREADS
if (file->thlock) {
rv = apr_thread_mutex_destroy(file->thlock);
}
#endif
}
else {
/* Are there any error conditions other than EINTR or EBADF? */
rv = errno;
}
#ifndef WAITIO_USES_POLL
if (file->pollset != NULL) {
int pollset_rv = apr_pollset_destroy(file->pollset);
/* If the file close failed, return its error value,
* not apr_pollset_destroy()'s.
*/
if (rv == APR_SUCCESS) {
rv = pollset_rv;
}
}
#endif /* !WAITIO_USES_POLL */
return rv != APR_SUCCESS ? rv : flush_rv;
}
APR_DECLARE(apr_status_t) apr_file_open(apr_file_t **new,
const char *fname,
apr_int32_t flag,
apr_fileperms_t perm,
apr_pool_t *pool)
{
apr_os_file_t fd;
int oflags = 0;
#if APR_HAS_THREADS
apr_thread_mutex_t *thlock;
apr_status_t rv;
#endif
if ((flag & APR_READ) && (flag & APR_WRITE)) {
oflags = O_RDWR;
}
else if (flag & APR_READ) {
oflags = O_RDONLY;
}
else if (flag & APR_WRITE) {
oflags = O_WRONLY;
}
else {
return APR_EACCES;
}
if (flag & APR_CREATE) {
oflags |= O_CREAT;
if (flag & APR_EXCL) {
oflags |= O_EXCL;
}
}
if ((flag & APR_EXCL) && !(flag & APR_CREATE)) {
return APR_EACCES;
}
if (flag & APR_APPEND) {
oflags |= O_APPEND;
}
if (flag & APR_TRUNCATE) {
oflags |= O_TRUNC;
}
#ifdef O_BINARY
if (flag & APR_BINARY) {
oflags |= O_BINARY;
}
#endif
#if APR_HAS_LARGE_FILES && defined(_LARGEFILE64_SOURCE)
oflags |= O_LARGEFILE;
#elif defined(O_LARGEFILE)
if (flag & APR_LARGEFILE) {
oflags |= O_LARGEFILE;
}
#endif
#if APR_HAS_THREADS
if ((flag & APR_BUFFERED) && (flag & APR_XTHREAD)) {
rv = apr_thread_mutex_create(&thlock,
APR_THREAD_MUTEX_DEFAULT, pool);
if (rv) {
return rv;
}
}
#endif
if (perm == APR_OS_DEFAULT) {
fd = open(fname, oflags, 0666);
}
else {
fd = open(fname, oflags, apr_unix_perms2mode(perm));
}
if (fd < 0) {
return errno;
}
(*new) = (apr_file_t *)apr_pcalloc(pool, sizeof(apr_file_t));
(*new)->pool = pool;
(*new)->flags = flag;
(*new)->filedes = fd;
(*new)->fname = apr_pstrdup(pool, fname);
(*new)->blocking = BLK_ON;
(*new)->buffered = (flag & APR_BUFFERED) > 0;
if ((*new)->buffered) {
(*new)->buffer = apr_palloc(pool, APR_FILE_BUFSIZE);
#if APR_HAS_THREADS
if ((*new)->flags & APR_XTHREAD) {
(*new)->thlock = thlock;
}
#endif
}
else {
(*new)->buffer = NULL;
}
(*new)->is_pipe = 0;
(*new)->timeout = -1;
(*new)->ungetchar = -1;
(*new)->eof_hit = 0;
(*new)->filePtr = 0;
(*new)->bufpos = 0;
(*new)->dataRead = 0;
(*new)->direction = 0;
#ifndef WAITIO_USES_POLL
/* Start out with no pollset. apr_wait_for_io_or_timeout() will
* initialize the pollset if needed.
*/
(*new)->pollset = NULL;
#endif
if (!(flag & APR_FILE_NOCLEANUP)) {
apr_pool_cleanup_register((*new)->pool, (void *)(*new),
apr_unix_file_cleanup,
apr_unix_file_cleanup);
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_file_close(apr_file_t *file)
{
return apr_pool_cleanup_run(file->pool, file, apr_unix_file_cleanup);
}
APR_DECLARE(apr_status_t) apr_file_remove(const char *path, apr_pool_t *pool)
{
if (unlink(path) == 0) {
return APR_SUCCESS;
}
else {
return errno;
}
}
APR_DECLARE(apr_status_t) apr_file_rename(const char *from_path,
const char *to_path,
apr_pool_t *p)
{
if (rename(from_path, to_path) != 0) {
return errno;
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_os_file_get(apr_os_file_t *thefile,
apr_file_t *file)
{
*thefile = file->filedes;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_os_file_put(apr_file_t **file,
apr_os_file_t *thefile,
apr_int32_t flags, apr_pool_t *pool)
{
int *dafile = thefile;
(*file) = apr_pcalloc(pool, sizeof(apr_file_t));
(*file)->pool = pool;
(*file)->eof_hit = 0;
(*file)->blocking = BLK_UNKNOWN; /* in case it is a pipe */
(*file)->timeout = -1;
(*file)->ungetchar = -1; /* no char avail */
(*file)->filedes = *dafile;
(*file)->flags = flags | APR_FILE_NOCLEANUP;
(*file)->buffered = (flags & APR_BUFFERED) > 0;
#ifndef WAITIO_USES_POLL
/* Start out with no pollset. apr_wait_for_io_or_timeout() will
* initialize the pollset if needed.
*/
(*file)->pollset = NULL;
#endif
if ((*file)->buffered) {
(*file)->buffer = apr_palloc(pool, APR_FILE_BUFSIZE);
#if APR_HAS_THREADS
if ((*file)->flags & APR_XTHREAD) {
apr_status_t rv;
rv = apr_thread_mutex_create(&((*file)->thlock),
APR_THREAD_MUTEX_DEFAULT, pool);
if (rv) {
return rv;
}
}
#endif
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_file_eof(apr_file_t *fptr)
{
if (fptr->eof_hit == 1) {
return APR_EOF;
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_file_open_stderr(apr_file_t **thefile,
apr_pool_t *pool)
{
int fd = STDERR_FILENO;
return apr_os_file_put(thefile, &fd, 0, pool);
}
APR_DECLARE(apr_status_t) apr_file_open_stdout(apr_file_t **thefile,
apr_pool_t *pool)
{
int fd = STDOUT_FILENO;
return apr_os_file_put(thefile, &fd, 0, pool);
}
APR_DECLARE(apr_status_t) apr_file_open_stdin(apr_file_t **thefile,
apr_pool_t *pool)
{
int fd = STDIN_FILENO;
return apr_os_file_put(thefile, &fd, 0, pool);
}
APR_IMPLEMENT_INHERIT_SET(file, flags, pool, apr_unix_file_cleanup)
APR_IMPLEMENT_INHERIT_UNSET(file, flags, pool, apr_unix_file_cleanup)
APR_POOL_IMPLEMENT_ACCESSOR(file)
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