Plan 9 from Bell Labs’s /usr/web/sources/contrib/oraccha/iperf3/t_uuid.c
#include <stdio.h> #include <stdlib.h> #include <string.h> #include "uuid.h" int main(int argc, char **argv) { char *uuid; get_uuid(uuid); if (strlen(uuid) != 36) { printf("uuid is not 37 characters long %s.\n", uuid); exit(-1); } exit(0); }