uuid_unparse (3) - Linux Man Pages

uuid_unparse: convert a UUID from binary representation to a string


uuid_unparse - convert a UUID from binary representation to a string


#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);


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.


This library unparses UUIDs compatible with OSF DCE 1.1.


Theodore Y. Ts'o


libuuid is part of the util-linux package since version 2.15.1 and is available from https://www.kernel.org/pub/linux/utils/util-linux/.