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/***
  This file is part of systemd.

  Copyright 2010 Lennart Poettering
  Copyright 2013 Thomas H.P. Andersen

  systemd is free software; you can redistribute it and/or modify it
  under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation; either version 2.1 of the License, or
  (at your option) any later version.

  systemd 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/

#include <stdio.h>
#include <stdbool.h>

#include "fd-util.h"
#include "fileio.h"
#include "log.h"
#include "macro.h"
#include "terminal-util.h"
#include "util.h"

static void test_default_term_for_tty(void) {
        puts(default_term_for_tty("/dev/tty23"));
        puts(default_term_for_tty("/dev/ttyS23"));
        puts(default_term_for_tty("/dev/tty0"));
        puts(default_term_for_tty("/dev/pty0"));
        puts(default_term_for_tty("/dev/pts/0"));
        puts(default_term_for_tty("/dev/console"));
        puts(default_term_for_tty("tty23"));
        puts(default_term_for_tty("ttyS23"));
        puts(default_term_for_tty("tty0"));
        puts(default_term_for_tty("pty0"));
        puts(default_term_for_tty("pts/0"));
        puts(default_term_for_tty("console"));
}

static void test_read_one_char(void) {
        _cleanup_fclose_ FILE *file = NULL;
        char r;
        bool need_nl;
        char name[] = "/tmp/test-read_one_char.XXXXXX";
        int fd;

        fd = mkostemp_safe(name, O_RDWR|O_CLOEXEC);
        assert_se(fd >= 0);
        file = fdopen(fd, "r+");
        assert_se(file);
        assert_se(fputs("c\n", file) >= 0);
        rewind(file);

        assert_se(read_one_char(file, &r, 1000000, &need_nl) >= 0);
        assert_se(!need_nl);
        assert_se(r == 'c');
        assert_se(read_one_char(file, &r, 1000000, &need_nl) < 0);

        rewind(file);
        assert_se(fputs("foobar\n", file) >= 0);
        rewind(file);
        assert_se(read_one_char(file, &r, 1000000, &need_nl) < 0);

        rewind(file);
        assert_se(fputs("\n", file) >= 0);
        rewind(file);
        assert_se(read_one_char(file, &r, 1000000, &need_nl) < 0);

        unlink(name);
}

int main(int argc, char *argv[]) {
        log_parse_environment();
        log_open();

        test_default_term_for_tty();
        test_read_one_char();

        return 0;
}