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/* $Id: getroute.h,v 1.4 2025/04/03 21:11:35 nanard Exp $ */
/* MiniUPnP project
* http://miniupnp.free.fr/ or https://miniupnp.tuxfamily.org/
* (c) 2006-2025 Thomas Bernard
* This software is subject to the conditions detailed
* in the LICENCE file provided within the distribution */
#ifndef GETROUTE_H_INCLUDED
#define GETROUTE_H_INCLUDED
/*! \file getroute.h
* \brief access system network routes
*
* Must be implemented for each supported system (BSD/Linux/etc.)
*/
/*! \brief get interface for route to
*
* \param[in] dst destination of the route
* \param[out] src pointer to a struct in_addr or in6_addr
* \param[in] src_len src buffer length
* \param[out] index interface index
* \return 0 on success, -1 on error
*/
int
get_src_for_route_to(const struct sockaddr * dst,
void * src, size_t * src_len,
int * index);
#endif
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