FIDO_STRERR(3) Library Functions Manual FIDO_STRERR(3)

FIDO 2 error codes

#include <fido.h>
const char *
fido_strerr(int n);

The fido_strerr() function translates the error code n into a readable string, where n is an error code defined in <fido/err.h>. fido_strerr() never returns NULL. Returned pointers point to static strings.
May 25, 2018 Linux 5.3.12-arch1-1