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 "src/core/util/strerror.h"
16
17 #include <grpc/support/port_platform.h>
18 #include <string.h>
19
20 #include "absl/strings/str_format.h"
21
22 namespace grpc_core {
23
24 #ifdef GPR_WINDOWS
StrError(int err)25 std::string StrError(int err) { return strerror(err); }
26 #else
27 std::string StrError(int err) {
28 struct Finish {
29 static std::string Run(char* buf, int err, int r) {
30 if (r == 0) return buf;
31 return absl::StrFormat("strerror_r(%d) failed: %d", err, r);
32 }
33 static std::string Run(char*, int, const char* r) { return r; }
34 };
35 char buf[256];
36 return Finish::Run(buf, err, strerror_r(err, buf, sizeof(buf)));
37 }
38 #endif // !GPR_WINDOWS
39
40 } // namespace grpc_core
41