/usr/include/u2f-host/u2f-host.h is in libu2f-host-dev 1.0.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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Copyright (C) 2013-2015 Yubico AB
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1, or (at your option) any
later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef U2F_HOST_H
#define U2F_HOST_H
#include <stdint.h>
#include <string.h>
#include <u2f-host-version.h>
#include <u2f-host-types.h>
#ifdef __cplusplus
extern "C"
{
#endif
/* Must be called successfully before using any other functions. */
extern u2fh_rc u2fh_global_init (u2fh_initflags flags);
extern void u2fh_global_done (void);
extern const char *u2fh_strerror (int err);
extern const char *u2fh_strerror_name (int err);
extern u2fh_rc u2fh_devs_init (u2fh_devs ** devs);
extern u2fh_rc u2fh_devs_discover (u2fh_devs * devs, unsigned *max_index);
extern void u2fh_devs_done (u2fh_devs * devs);
extern u2fh_rc u2fh_register (u2fh_devs * devs,
const char *challenge,
const char *origin,
char **response, u2fh_cmdflags flags);
extern u2fh_rc u2fh_authenticate (u2fh_devs * devs,
const char *challenge,
const char *origin,
char **response, u2fh_cmdflags flags);
extern u2fh_rc u2fh_sendrecv (u2fh_devs * devs,
unsigned index,
uint8_t cmd,
const unsigned char *send,
uint16_t sendlen,
unsigned char *recv, size_t * recvlen);
extern u2fh_rc u2fh_get_device_description (u2fh_devs * devs,
unsigned index, char *out,
size_t * len);
extern int u2fh_is_alive (u2fh_devs * devs, unsigned index);
#ifdef __cplusplus
}
#endif
#endif
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