fido_init, fido_set_log_handler — initialise the FIDO2 library

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.

fido_init, fido_set_log_handler — initialise the FIDO2 library

fido_assert_new(3), fido_cred_new(3), fido_dev_info_manifest(3), fido_dev_open(3) Debian May 25, 2018 FIDO_INIT(3)

#include<fido.h> typedef void fido_log_handler_t(const char *); voidfido_init(intflags); voidfido_set_log_handler(fido_log_handler_t*handler);