1 // Copyright 2022 gRPC authors.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 #include <grpc/support/port_platform.h>
16
17 #include "src/core/lib/gprpp/strerror.h"
18
19 #include <string.h>
20
21 #include "absl/strings/str_format.h"
22
23 namespace grpc_core {
24
25 #ifdef GPR_WINDOWS
StrError(int err)26 std::string StrError(int err) { return strerror(err); }
27 #else
28 std::string StrError(int err) {
29 struct Finish {
30 static std::string Run(char* buf, int err, int r) {
31 if (r == 0) return buf;
32 return absl::StrFormat("strerror_r(%d) failed: %d", err, r);
33 }
34 static std::string Run(char*, int, const char* r) { return r; }
35 };
36 char buf[256];
37 return Finish::Run(buf, err, strerror_r(err, buf, sizeof(buf)));
38 }
39 #endif // !GPR_WINDOWS
40
41 } // namespace grpc_core
42