extern void bin2hex(char *src, char *dst, int length);
#ifdef HAVE_MINGW
-extern char *winerror(int);
+extern const char *winerror(int);
#define strerror(x) ((x)>0?strerror(x):winerror(GetLastError()))
#endif
+extern unsigned int bitfield_to_int(void *bitfield, size_t size);
+
#endif /* __TINC_UTILS_H__ */