| /* 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_finfo_t finfo; |
| apr_fileperms_t perms; |
| |
| /* Open source file. */ |
| status = apr_file_open(&s, from_path, APR_READ, APR_OS_DEFAULT, pool); |
| if (status) |
| return status; |
| |
| /* Maybe get its permissions. */ |
| if (to_perms == APR_FILE_SOURCE_PERMS) { |
| 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; |
| } |
| 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), |
| 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), |
| perms, |
| pool); |
| } |