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/*
* RTFL
*
* Copyright 2014 Sebastian Geerken <sgeerken@dillo.org>
*
* 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 <http://www.gnu.org/licenses/>.
*/
/*
* Simply copy stdin to stdout, with some debug messages printed to
* stderr. Used to test rtfl-tee.
*/
#include <unistd.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
static void syserr (const char *fmt, ...)
{
va_list args;
va_start (args, fmt);
vfprintf (stderr, fmt, args);
fprintf (stderr, ": %s\n", strerror (errno));
exit (1);
}
int main (int argc, char *argv[])
{
char buf[2048];
ssize_t n;
do {
if ((n = read (0, buf, sizeof (buf))) == -1) syserr ("read failed");
fprintf (stderr, "==> [%s] n = %d\n", argv[0], (int)n);
if (write (1, buf, n) == -1) syserr ("write failed");
} while (n > 0);
return 0;
}
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