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/*
*
* Copyright 2016, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/* Posix code for gpr snprintf support. */
#include <grpc/support/port_platform.h>
#ifdef GPR_WIN32
/* 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_NEUTRAL, 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_WIN32 */
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