2 * Copyright (c) 2016 Samsung Electronics Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #include "helper-file.h"
19 #define BUF_MAX (BUFSIZ)
20 #define BUF_INC_SIZE (512 << 10)
22 int fwrite_str(const char *path, const char *str)
24 _cleanup_fclose_ FILE *f = NULL;
31 t = realpath(path, NULL);
32 ret_value_errno_msg_if(!t, -errno,
33 "Fail to get realpath %s", path);
37 ret_value_errno_msg_if(!f, -errno,
38 "Fail to open file %s", path);
41 ret_value_errno_msg_if(ret == EOF, errno ? -errno : -EIO,
42 "Fail to write file");
44 return STC_ERROR_NONE;
47 int fwrite_uint(const char *path, const uint32_t number)
49 _cleanup_free_ char *digit_buf = NULL;
52 ret = asprintf(&digit_buf, "%d", number);
53 ret_value_errno_msg_if(ret < 0, -ENOMEM,
56 return fwrite_str(path, digit_buf);
59 int fread_uint(const char *path, uint32_t *number)
61 _cleanup_fclose_ FILE *f = NULL;
65 ret_value_errno_msg_if(!f, -errno,
66 "Fail to open %s file.", path);
68 ret = fscanf(f, "%u", number);
69 ret_value_errno_msg_if(ret == EOF, -errno,
70 "Fail to read file\n");
72 return STC_ERROR_NONE;