1 /*
2 * Copyright 2015 Rockchip Electronics Co. LTD
3 *
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
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
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.
15 */
16
17 #if defined(linux) && !defined(__ANDROID__)
18 #include <stdio.h>
19 #include <stdlib.h>
20 #include <errno.h>
21 #include "os_env.h"
22
23 #define ENV_BUF_SIZE_LINUX 1024
24
os_get_env_u32(const char * name,RK_U32 * value,RK_U32 default_value)25 RK_S32 os_get_env_u32(const char *name, RK_U32 *value, RK_U32 default_value)
26 {
27 char *ptr = getenv(name);
28 if (NULL == ptr) {
29 *value = default_value;
30 } else {
31 char *endptr;
32 int base = (ptr[0] == '0' && ptr[1] == 'x') ? (16) : (10);
33 errno = 0;
34 *value = strtoul(ptr, &endptr, base);
35 if (errno || (ptr == endptr)) {
36 errno = 0;
37 *value = default_value;
38 }
39 }
40 return 0;
41 }
42
os_get_env_str(const char * name,const char ** value,const char * default_value)43 RK_S32 os_get_env_str(const char *name, const char **value, const char *default_value)
44 {
45 *value = getenv(name);
46 if (NULL == *value) {
47 *value = default_value;
48 }
49 return 0;
50 }
51
os_set_env_u32(const char * name,RK_U32 value)52 RK_S32 os_set_env_u32(const char *name, RK_U32 value)
53 {
54 char buf[ENV_BUF_SIZE_LINUX];
55 snprintf(buf, sizeof(buf) - 1, "%u", value);
56 return setenv(name, buf, 1);
57 }
58
os_set_env_str(const char * name,char * value)59 RK_S32 os_set_env_str(const char *name, char *value)
60 {
61 return setenv(name, value, 1);
62 }
63
64 #endif
65