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/* Creation of autonomous subprocesses.
Copyright (C) 2001-2003, 2008-2021 Free Software Foundation, Inc.
Written by Bruno Haible <haible@clisp.cons.org>, 2001.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#ifndef _EXECUTE_H
#define _EXECUTE_H
#include <stdbool.h>
/* Execute a command, optionally redirecting any of the three standard file
descriptors to /dev/null. Return its exit code.
If it didn't terminate correctly, exit if exit_on_error is true, otherwise
return 127.
progname is the name of the program to be executed by the subprocess, used
for error messages.
prog_path is the file name of the program to be executed by the subprocess.
If it contains no slashes, a search is conducted in $PATH. An operating
system dependent suffix is added, if necessary.
prog_argv is the array of strings that the subprocess shall receive in
argv[]. It is a NULL-terminated array. prog_argv[0] should normally be
identical to prog_path.
If directory is not NULL, the command is executed in that directory. If
prog_path is a relative file name, it resolved before changing to that
directory. The current directory of the current process remains unchanged.
If ignore_sigpipe is true, consider a subprocess termination due to SIGPIPE
as equivalent to a success. This is suitable for processes whose only
purpose is to write to standard output.
If slave_process is true, the child process will be terminated when its
creator receives a catchable fatal signal.
If termsigp is not NULL, *termsig will be set to the signal that terminated
the subprocess (if supported by the platform: not on native Windows
platforms), otherwise 0.
It is recommended that no signal is blocked or ignored while execute()
is called. See spawn-pipe.h for the reason. */
extern int execute (const char *progname,
const char *prog_path, const char * const *prog_argv,
const char *directory,
bool ignore_sigpipe,
bool null_stdin, bool null_stdout, bool null_stderr,
bool slave_process, bool exit_on_error,
int *termsigp);
#endif /* _EXECUTE_H */
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