/usr/include/libhdhomerun/hdhomerun_discover.h is in libhdhomerun-dev 20140121-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* hdhomerun_discover.h
*
* Copyright © 2006-2007 Silicondust USA Inc. <www.silicondust.com>.
*
* This library 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 of the License, or (at your option) any later version.
*
* This library 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifdef __cplusplus
extern "C" {
#endif
struct hdhomerun_discover_device_t {
uint32_t ip_addr;
uint32_t device_type;
uint32_t device_id;
uint8_t tuner_count;
};
/*
* Find devices.
*
* The device information is stored in caller-supplied array of hdhomerun_discover_device_t vars.
* Multiple attempts are made to find devices.
* Execution time is typically 400ms if max_count is not reached.
*
* Set target_ip to zero to auto-detect the IP address.
* Set device_type to HDHOMERUN_DEVICE_TYPE_TUNER to detect HDHomeRun tuner devices.
* Set device_id to HDHOMERUN_DEVICE_ID_WILDCARD to detect all device ids.
*
* Returns the number of devices found.
* Retruns -1 on error.
*/
extern LIBTYPE int hdhomerun_discover_find_devices_custom(uint32_t target_ip, uint32_t device_type, uint32_t device_id, struct hdhomerun_discover_device_t result_list[], int max_count);
/*
* Optional: persistent discover instance available for discover polling use.
*/
extern LIBTYPE struct hdhomerun_discover_t *hdhomerun_discover_create(struct hdhomerun_debug_t *dbg);
extern LIBTYPE void hdhomerun_discover_destroy(struct hdhomerun_discover_t *ds);
extern LIBTYPE int hdhomerun_discover_find_devices(struct hdhomerun_discover_t *ds, uint32_t target_ip, uint32_t device_type, uint32_t device_id, struct hdhomerun_discover_device_t result_list[], int max_count);
/*
* Verify that the device ID given is valid.
*
* The device ID contains a self-check sequence that detects common user input errors including
* single-digit errors and two digit transposition errors.
*
* Returns TRUE if valid.
* Returns FALSE if not valid.
*/
extern LIBTYPE bool_t hdhomerun_discover_validate_device_id(uint32_t device_id);
/*
* Detect if an IP address is multicast.
*
* Returns TRUE if multicast.
* Returns FALSE if zero, unicast, expermental, or broadcast.
*/
extern LIBTYPE bool_t hdhomerun_discover_is_ip_multicast(uint32_t ip_addr);
#ifdef __cplusplus
}
#endif
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