others
/* $Id$ */
/* Copyright (c) 2015 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS Unix others */
/* 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, version 3 of the License.
*
* 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 <http://www.gnu.org/licenses/>. */
#include <unistd.h>
#include <stdio.h>
#include <signal.h>
#ifndef PROGNAME
# define PROGNAME "resize"
#endif
/* resize */
/* private */
/* prototypes */
static int _resize(void);
static int _resize_error(char const * message, int ret);
static int _resize_usage(void);
/* functions */
/* resize */
static int _resize(void)
{
pid_t pid;
pid = getppid();
if(kill(pid, SIGWINCH) != 0)
return -_resize_error("kill", 1);
return 0;
}
/* resize_error */
static int _resize_error(char const * message, int ret)
{
fputs(PROGNAME ": ", stderr);
perror(message);
return ret;
}
/* resize_usage */
static int _resize_usage(void)
{
fputs("Usage: " PROGNAME "\n", stderr);
return 1;
}
/* public */
/* functions */
/* main */
int main(int argc, char * argv[])
{
int o;
while((o = getopt(argc, argv, "")) != -1)
switch(o)
{
default:
return _resize_usage();
}
if(optind != argc)
return _resize_usage();
return (_resize() == 0) ? 0 : 2;
}