NAME

       fido_init, fido_set_log_handler — initialise the FIDO2 library

SYNOPSIS

       #include <fido.h>

       typedef void fido_log_handler_t(const char *);

       void
       fido_init(int flags);

       void
       fido_set_log_handler(fido_log_handler_t *handler);

DESCRIPTION

       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.

SEE ALSO

       fido_assert_new(3), fido_cred_new(3), fido_dev_info_manifest(3), fido_dev_open(3)

Debian                                            May 25, 2018                                      FIDO_INIT(3)