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/*
* Prototypes for shared command handling.
*
* Written by Russ Allbery <eagle@eyrie.org>
* Copyright 2021 Russ Allbery <eagle@eyrie.org>
* Copyright 1995-1997, 1999-2002, 2004-2005, 2007-2010
* The Board of Trustees of the Leland Stanford Junior University
*
* SPDX-License-Identifier: MIT
*/
#ifndef UTIL_COMMAND_H
#define UTIL_COMMAND_H 1
#include <config.h>
#include <portable/macros.h>
#include <portable/stdbool.h>
#include <sys/types.h>
BEGIN_DECLS
/* Default to a hidden visibility for all util functions. */
#pragma GCC visibility push(hidden)
/*
* Run the given aklog command. If verbose is true, print some more output to
* standard output about the exit status.
*/
void command_run(const char *aklog, bool verbose);
/*
* Start a command, executing the given command with the given argument vector
* (which includes argv[0]). Returns the PID or -1 on error. This function
* should not be called again without an intervening finish_command or the
* signal handling won't work properly.
*/
pid_t command_start(const char *command, char **argv);
/*
* Check to see if the given command has finished. If so, return 1 and set
* status to its exit status. If it hasn't, return 0. Return -1 on an
* error.
*/
int command_finish(pid_t child, int *status);
/* Undo default visibility change. */
#pragma GCC visibility pop
END_DECLS
#endif /* UTIL_COMMAND_H */
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