nativelibc/getcwd.c

#include <windows.h>
#include <nt.h>
#include <limits.h>
#include <errno.h>

char *getcwd(char *buf, unsigned int size) {
	wchar_t wpath[PATH_MAX];
	RtlGetCurrentDirectory_U(PATH_MAX, wpath);
	size_t len = wcslen(wpath) * 2 - 1;
	if(!size) {
		if(buf) {
			//errno = EINVAL;
			return NULL;
		}
		buf = (char *)malloc(PATH_MAX * 2 * sizeof(char));
		size = PATH_MAX * 2;
	} else if(size < len) {
		//errno = ERANGE;
		return NULL;
	}
	wcstombs(buf, wpath, size);
	if(len) while(--len) if(buf[len] == '\\') buf[len] = '/';
	return buf;
}