utils/src/echo.c

59 lines
1.2 KiB
C

/* $Id$ */
/* Copyright (c) 2009 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS Unix utils */
/* 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>
/* echo */
static int _echo(int argc, char * argv[])
{
int i;
if(argc != 0)
{
fputs(argv[0], stdout);
for(i = 1; i < argc; i++)
printf(" %s", argv[i]);
}
putchar('\n');
return 0;
}
/* usage */
static int _usage(void)
{
fputs("Usage: echo [string...]\n", stderr);
return 1;
}
/* main */
int main(int argc, char * argv[])
{
int o;
while((o = getopt(argc, argv, "")) != -1)
switch(o)
{
default:
return _usage();
}
return _echo(argc - optind, &argv[optind]);
}