1 /*
2 *
3 * Copyright 2015 gRPC authors.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 */
18
19 #include <grpc/support/port_platform.h>
20
21 #ifdef GPR_WINDOWS_ENV
22
23 #include <windows.h>
24
25 #include <grpc/support/alloc.h>
26 #include <grpc/support/log.h>
27 #include <grpc/support/string_util.h>
28
29 #include "src/core/lib/gpr/env.h"
30 #include "src/core/lib/gpr/string.h"
31 #include "src/core/lib/gpr/string_windows.h"
32
gpr_getenv_silent(const char * name,char ** dst)33 const char* gpr_getenv_silent(const char* name, char** dst) {
34 *dst = gpr_getenv(name);
35 return NULL;
36 }
37
gpr_getenv(const char * name)38 char* gpr_getenv(const char* name) {
39 char* result = NULL;
40 DWORD size;
41 LPTSTR tresult = NULL;
42 LPTSTR tname = gpr_char_to_tchar(name);
43 DWORD ret;
44
45 ret = GetEnvironmentVariable(tname, NULL, 0);
46 if (ret == 0) {
47 gpr_free(tname);
48 return NULL;
49 }
50 size = ret * (DWORD)sizeof(TCHAR);
51 tresult = (LPTSTR)gpr_malloc(size);
52 ret = GetEnvironmentVariable(tname, tresult, size);
53 gpr_free(tname);
54 if (ret == 0) {
55 gpr_free(tresult);
56 return NULL;
57 }
58 result = gpr_tchar_to_char(tresult);
59 gpr_free(tresult);
60 return result;
61 }
62
gpr_setenv(const char * name,const char * value)63 void gpr_setenv(const char* name, const char* value) {
64 LPTSTR tname = gpr_char_to_tchar(name);
65 LPTSTR tvalue = gpr_char_to_tchar(value);
66 BOOL res = SetEnvironmentVariable(tname, tvalue);
67 gpr_free(tname);
68 gpr_free(tvalue);
69 GPR_ASSERT(res);
70 }
71
72 #endif /* GPR_WINDOWS_ENV */
73