stdio/rename.c

/*	A part of the Windows CE C Extra Library (celibc)
	Copyright 2007-2015 PC GO Ld.

	This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

	This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
*/

#include <string.h>
#include <unistd.h>
#include <windows.h>

#ifndef FILE_ATTRIBUTE_INROM
#define FILE_ATTRIBUTE_INROM FILE_ATTRIBUTE_DEVICE
#endif
#ifndef FILE_ATTRIBUTE_ROMMODULE
#define FILE_ATTRIBUTE_ROMMODULE FILE_ATTRIBUTE_NOT_CONTENT_INDEXED
#endif

int rename(const char *oldfile, const char *newfile) {
	size_t oldfile_len = strlen(oldfile) + 1;
	size_t newfile_len = strlen(newfile) + 1;
	wchar_t woldfile[oldfile_len];
	wchar_t wnewfile[newfile_len];
	mbstowcs(woldfile, oldfile, oldfile_len);
	mbstowcs(wnewfile, newfile, newfile_len);
	unsigned long int attrib = GetFileAttributes(wnewfile);
	if(attrib != (unsigned long int)-1 && !(attrib & FILE_ATTRIBUTE_DIRECTORY) &&
	!(attrib & FILE_ATTRIBUTE_INROM) && !(attrib & FILE_ATTRIBUTE_ROMMODULE) && unlink(newfile) < 0) return -1;
	if(!MoveFileW(woldfile, wnewfile)) return -1;
	return 0;
}