преобразовать UUID из двоичного представления в строку  (convert a UUID from binary representation to a string)
  
Имя (Name)
uuid_unparse - convert a UUID from binary representation to a
       string
Синопсис (Synopsis)
#include <uuid.h>
       void uuid_unparse(uuid_t uu, char *out);
       void uuid_unparse_upper(uuid_t uu, char *out);
       void uuid_unparse_lower(uuid_t uu, char *out);
Описание (Description)
The uuid_unparse() function converts the supplied UUID uu from
       the binary representation into a 36-byte string (plus trailing
       '\0') of the form 1b4e28ba-2fa1-11d2-883f-0016d3cca427 and stores
       this value in the character string pointed to by out. The case of
       the hex digits returned by uuid_unparse() may be upper or lower
       case, and is dependent on the system-dependent local default.
       If the case of the hex digits is important then the functions
       uuid_unparse_upper() and uuid_unparse_lower() may be used.
Стандарты (Conforming to)
This library unparses UUIDs compatible with OSF DCE 1.1.