log.cc

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/*
 * This file is part of plptools.
 *
 *  Copyright (C) 1999 Philip Proudman <philip.proudman@btinternet.com>
 *  Copyright (C) 1999-2001 Fritz Elfert <felfert@to.com>
 *
 *  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 2 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
 *  along with this program; if not, see <https://www.gnu.org/licenses/>.
 *
 */
#include "config.h"
 
#include "log.h"
 
#include "ignore-value.h"
 
#include <unistd.h>
 
logbuf::logbuf(int loglevel, int fd) {
    ptr = buf;
    len = 0;
    _use_syslog = true;
    _level = loglevel;
    _fd = fd;
}
 
int logbuf::overflow(int c) {
    if (c == '\n') {
        *ptr++ = '\n';
        *ptr = '\0';
        if (_use_syslog)
            syslog(_level, "%s", buf);
        else if (_fd != -1)
            ignore_value(write(_fd, buf, len + 1));
        ptr = buf;
        len = 0;
        return 0;
    }
    if ((len + 2) >= sizeof(buf))
        return EOF;
    *ptr++ = c;
    len++;
    return 0;
}