ndhc/ifchange.h

// Copyright 2004-2018 Nicholas J. Kain <njkain at gmail dot com>
// SPDX-License-Identifier: MIT
#ifndef IFCHANGE_H_
#define IFCHANGE_H_

#include <stdbool.h>

bool ifchange_carrier_isup(void);
int ifchange_bind(struct client_state_t *cs, struct dhcpmsg *packet);
int ifchange_deconfig(struct client_state_t *cs);

#endif
Relicense as MIT. It's a lot more common than BSD 2-clause it is both compatible and nearly identical in effect. 2022-02-07 06:35:29 +05:30			`// Copyright 2004-2018 Nicholas J. Kain <njkain at gmail dot com>`
			`// SPDX-License-Identifier: MIT`
Rename script.[ch] to ifchange.[ch]. 2010-12-24 20:42:41 +05:30			`#ifndef IFCHANGE_H_`
			`#define IFCHANGE_H_`

Rename check_carrier() to carrier_isup() and use bool return. 2017-01-12 15:55:15 +05:30			`#include <stdbool.h>`

Speed up interface carrier checking. This is done by performing one synchronous query for carrier state at the start of the program; after that, we just monitor the nlsocket for carrier state changes and update the cached state accordingly. The benefit is that ifchd needs to do a lot less work and this should reduce the CPU cycle consumption; prior to this commit, the CPU time ends up being a few CPU-minutes per month. 2021-04-25 14:56:19 +05:30			`bool ifchange_carrier_isup(void);`
Replace mostly obsolete -[static 1] with reliable old *-. This notation originally had the sole advantage of implying that the pointer was non-NULL, but it has seen little use and now clang presents warnings about it in certain contexts. 2022-01-12 09:05:19 +05:30			`int ifchange_bind(struct client_state_t cs, struct dhcpmsg packet);`
			`int ifchange_deconfig(struct client_state_t *cs);`
Rename script.[ch] to ifchange.[ch]. 2010-12-24 20:42:41 +05:30
			`#endif`