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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"
static apr_status_t apr_file_transfer_contents(const char *from_path,
const char *to_path,
apr_int32_t flags,
apr_fileperms_t to_perms,
apr_pool_t *pool)
{
apr_file_t *s, *d;
apr_status_t status;
apr_fileperms_t perms;
/* Open source file. */
status = apr_file_open(&s, from_path, APR_READ | APR_LARGEFILE,
APR_OS_DEFAULT, pool);
if (status)
return status;
/* Maybe get its permissions. */
if (to_perms == APR_FILE_SOURCE_PERMS) {
#if defined(HAVE_FSTAT64) && defined(O_LARGEFILE) && SIZEOF_OFF_T == 4
struct stat64 st;
if (fstat64(s->filedes, &st) != 0)
return errno;
perms = apr_unix_mode2perms(st.st_mode);
#else
apr_finfo_t finfo;
status = apr_file_info_get(&finfo, APR_FINFO_PROT, s);
if (status != APR_SUCCESS && status != APR_INCOMPLETE) {
apr_file_close(s); /* toss any error */
return status;
}
perms = finfo.protection;
#endif
}
else
perms = to_perms;
/* Open dest file. */
status = apr_file_open(&d, to_path, flags, perms, pool);
if (status) {
apr_file_close(s); /* toss any error */
return status;
}
#if BUFSIZ > APR_FILE_DEFAULT_BUFSIZE
#define COPY_BUFSIZ BUFSIZ
#else
#define COPY_BUFSIZ APR_FILE_DEFAULT_BUFSIZE
#endif
/* Copy bytes till the cows come home. */
while (1) {
char buf[COPY_BUFSIZ];
apr_size_t bytes_this_time = sizeof(buf);
apr_status_t read_err;
apr_status_t write_err;
/* Read 'em. */
read_err = apr_file_read(s, buf, &bytes_this_time);
if (read_err && !APR_STATUS_IS_EOF(read_err)) {
apr_file_close(s); /* toss any error */
apr_file_close(d); /* toss any error */
return read_err;
}
/* Write 'em. */
write_err = apr_file_write_full(d, buf, bytes_this_time, NULL);
if (write_err) {
apr_file_close(s); /* toss any error */
apr_file_close(d); /* toss any error */
return write_err;
}
if (read_err && APR_STATUS_IS_EOF(read_err)) {
status = apr_file_close(s);
if (status) {
apr_file_close(d); /* toss any error */
return status;
}
/* return the results of this close: an error, or success */
return apr_file_close(d);
}
}
/* NOTREACHED */
}
APR_DECLARE(apr_status_t) apr_file_copy(const char *from_path,
const char *to_path,
apr_fileperms_t perms,
apr_pool_t *pool)
{
return apr_file_transfer_contents(from_path, to_path,
(APR_WRITE | APR_CREATE | APR_TRUNCATE
| APR_LARGEFILE),
perms,
pool);
}
APR_DECLARE(apr_status_t) apr_file_append(const char *from_path,
const char *to_path,
apr_fileperms_t perms,
apr_pool_t *pool)
{
return apr_file_transfer_contents(from_path, to_path,
(APR_WRITE | APR_CREATE | APR_APPEND
| APR_LARGEFILE),
perms,
pool);
}
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