fido_set_log_handler3
Initialise the fido2 library
Part of fido_init(3).
Usage
typedef void
fido_log_handler_t(const
char
*);
void
void
Overview
The fido_init() function initialises the libfido2 library. Its invocation must precede that of any other libfido2 function in the context of the executing thread.
If FIDO_DEBUG is set in flags, then debug output will be emitted by libfido2 on stderr. Alternatively, the FIDO_DEBUG environment variable may be set.
If FIDO_DISABLE_U2F_FALLBACK is set in flags, then libfido2 will not fallback to U2F in fido_dev_open(3) if a device claims to support FIDO2 but fails to respond to a CTAP 2.0 greeting.
The fido_set_log_handler() function causes handler to be called for each log line generated in the context of the executing thread. Lines passed to handler include a trailing newline character and are not printed by libfido2 on stderr.