| /* |
| * |
| * Copyright 2016 gRPC authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| /* Posix code for gpr snprintf support. */ |
| |
| #include <grpc/support/port_platform.h> |
| |
| #ifdef GPR_WINDOWS |
| |
| /* Some platforms (namely msys) need wchar to be included BEFORE |
| anything else, especially strsafe.h. */ |
| #include <wchar.h> |
| |
| #include <stdarg.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <strsafe.h> |
| |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/string_util.h> |
| |
| #include "src/core/lib/support/string.h" |
| |
| #if defined UNICODE || defined _UNICODE |
| LPTSTR |
| gpr_char_to_tchar(LPCSTR input) { |
| LPTSTR ret; |
| int needed = MultiByteToWideChar(CP_UTF8, 0, input, -1, NULL, 0); |
| if (needed <= 0) return NULL; |
| ret = gpr_malloc((unsigned)needed * sizeof(TCHAR)); |
| MultiByteToWideChar(CP_UTF8, 0, input, -1, ret, needed); |
| return ret; |
| } |
| |
| LPSTR |
| gpr_tchar_to_char(LPCTSTR input) { |
| LPSTR ret; |
| int needed = WideCharToMultiByte(CP_UTF8, 0, input, -1, NULL, 0, NULL, NULL); |
| if (needed <= 0) return NULL; |
| ret = gpr_malloc((unsigned)needed); |
| WideCharToMultiByte(CP_UTF8, 0, input, -1, ret, needed, NULL, NULL); |
| return ret; |
| } |
| #else |
| char *gpr_tchar_to_char(LPTSTR input) { return gpr_strdup(input); } |
| |
| char *gpr_char_to_tchar(LPTSTR input) { return gpr_strdup(input); } |
| #endif |
| |
| char *gpr_format_message(int messageid) { |
| LPTSTR tmessage; |
| char *message; |
| DWORD status = FormatMessage( |
| FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | |
| FORMAT_MESSAGE_IGNORE_INSERTS, |
| NULL, (DWORD)messageid, MAKELANGID(LANG_ENGLISH, SUBLANG_DEFAULT), |
| (LPTSTR)(&tmessage), 0, NULL); |
| if (status == 0) return gpr_strdup("Unable to retrieve error string"); |
| message = gpr_tchar_to_char(tmessage); |
| LocalFree(tmessage); |
| return message; |
| } |
| |
| #endif /* GPR_WINDOWS */ |