#include <windows.h>
#include <stdio.h>
#include <inttypes.h>

#if __LP64__
#define PRI_DWORD "u"
#else
#define PRI_DWORD "lu"
#endif

static const char* geterr(DWORD err)
{
	static char msg[1024];

	FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS |
		FORMAT_MESSAGE_MAX_WIDTH_MASK, NULL, err,
		MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
		(LPSTR)msg, sizeof(msg), NULL);

	return msg;
}

int main(int argc, char* argv[])
{
	int i;
	int status = 0;
	for (i = 1; i < argc; i++) {
		HANDLE file;
		DWORD err, bytesWritten;
		BY_HANDLE_FILE_INFORMATION fileInfo;

		file = CreateFileA(argv[i], GENERIC_WRITE, FILE_SHARE_WRITE,
			NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
		if (file == INVALID_HANDLE_VALUE) {
			err = GetLastError();
			fprintf(stderr, "%s: CreateFile: %s (err %" PRI_DWORD")\n", argv[i],
				geterr(err), err);
			status++;
			continue;
		}

		if (!WriteFile(file, "Hello world!\n", 12, &bytesWritten, NULL) ||
			bytesWritten != 12) {
			err = GetLastError();
			fprintf(stderr, "%s: WriteFile: %s (err %" PRI_DWORD ")\n", argv[i],
				geterr(err), err);
			CloseHandle(file);
			status++;
			continue;
		}

		if (!GetFileInformationByHandle(file, &fileInfo)) {
			err = GetLastError();
			fprintf(stderr, "%s: GetFileInformationByHandle: %s (err %" PRI_DWORD ")\n",
				argv[i], geterr(err), err);
			CloseHandle(file);
			status++;
			continue;
		}

		printf("%s: FileInformationByHandle: nFileSize=%" PRIu64 "\n",
			argv[i], (uint64_t)fileInfo.nFileSizeHigh << 32 | fileInfo.nFileSizeLow);

		if (!CloseHandle(file)) {
			err = GetLastError();
			fprintf(stderr, "%s: CloseHandle: %s (err %" PRI_DWORD ")\n", argv[i],
				geterr(err), err);
			status++;
			continue;
		}
	}
	return status;
}