thodg/libgit2/src/win32/utf-conv.c

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• Hash : cd58c15c
  Author :
  Date : 2012-05-05T16:47:20
  

  Merge remote-tracking branch 'scottjg/fix-mingw32' into development Conflicts: src/netops.c src/netops.h src/transports/http.c tests-clar/clar

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• src/win32/utf-conv.c

• /*
   * Copyright (C) 2009-2012 the libgit2 contributors
   *
   * This file is part of libgit2, distributed under the GNU GPL v2 with
   * a Linking Exception. For full terms see the included COPYING file.
   */
  
  #include "common.h"
  #include "utf-conv.h"
  #include "git2/windows.h"
  
  /*
   * Default codepage value
   */
  static int _active_codepage = CP_UTF8;
  
  void gitwin_set_codepage(unsigned int codepage)
  {
  	_active_codepage = codepage;
  }
  
  unsigned int gitwin_get_codepage(void)
  {
  	return _active_codepage;
  }
  
  void gitwin_set_utf8(void)
  {
  	_active_codepage = CP_UTF8;
  }
  
  wchar_t* gitwin_to_utf16(const char* str)
  {
  	wchar_t* ret;
  	size_t cb;
  
  	if (!str)
  		return NULL;
  
  	cb = strlen(str) * sizeof(wchar_t);
  	if (cb == 0)
  		return (wchar_t *)git__calloc(1, sizeof(wchar_t));
  
  	/* Add space for null terminator */
  	cb += sizeof(wchar_t);
  
  	ret = (wchar_t *)git__malloc(cb);
  	if (!ret)
  		return NULL;
  
  	if (MultiByteToWideChar(_active_codepage, 0, str, -1, ret, (int)cb) == 0) {
  		giterr_set(GITERR_OS, "Could not convert string to UTF-16");
  		git__free(ret);
  		ret = NULL;
  	}
  
  	return ret;
  }
  
  int gitwin_append_utf16(wchar_t *buffer, const char *str, size_t len)
  {
  	int result = MultiByteToWideChar(_active_codepage, 0, str, -1, buffer, (int)len);
  	if (result == 0)
  		giterr_set(GITERR_OS, "Could not convert string to UTF-16");
  	return result;
  }
  
  char* gitwin_from_utf16(const wchar_t* str)
  {
  	char* ret;
  	size_t cb;
  
  	if (!str)
  		return NULL;
  
  	cb = wcslen(str) * sizeof(char);
  	if (cb == 0)
  		return (char *)git__calloc(1, sizeof(char));
  
  	/* Add space for null terminator */
  	cb += sizeof(char);
  
  	ret = (char*)git__malloc(cb);
  	if (!ret)
  		return NULL;
  
  	if (WideCharToMultiByte(_active_codepage, 0, str, -1, ret, (int)cb, NULL, NULL) == 0) {
  		giterr_set(GITERR_OS, "Could not convert string to UTF-8");
  		git__free(ret);
  		ret = NULL;
  	}
  
  	return ret;
  
  }
  

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