/* -*- c-file-style: "java"; indent-tabs-mode: nil -*- * * distcc -- A simple distributed compiler system * * Copyright (C) 2002, 2003 by Martin Pool <mbp@samba.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 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 with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 * USA */ #include "config.h" #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <string.h> #include <errno.h> #include <fcntl.h> #include "distcc.h" #include "trace.h" #include "exitcode.h" #include "util.h" /** * Setup client error/trace output. * * Trace goes to the file specified by DISTCC_LOG, if any. Otherwise, it goes * to stderr, except that UNCACHED_ERR_FD can redirect it elsewhere, for use * under ccache. * * The exact setting of log level is a little strange, but for a good * reason: if you ask for verbose, you get everything. Otherwise, if * you set a file, you get INFO and above. Otherwise, you only get * WARNING messages. In practice this seems to be a nice balance. **/ void dcc_set_trace_from_env(void) { const char *logfile, *logfd_name; int fd; if ((logfile = getenv("DISTCC_LOG")) && logfile[0]) { rs_trace_set_level(RS_LOG_INFO); fd = open(logfile, O_WRONLY|O_APPEND|O_CREAT, 0666); if (fd == -1) { /* use stderr instead */ int save_errno = errno; rs_trace_set_level(RS_LOG_WARNING); rs_add_logger(rs_logger_file, RS_LOG_DEBUG, NULL, STDERR_FILENO); rs_log_error("failed to open logfile %s: %s", logfile, strerror(save_errno)); } else { rs_add_logger(rs_logger_file, RS_LOG_DEBUG, NULL, fd); rs_trace_set_level(RS_LOG_INFO); } } else { if ((logfd_name = getenv("UNCACHED_ERR_FD")) == NULL || (fd = atoi(logfd_name)) == 0) { fd = STDERR_FILENO; } rs_trace_set_level(RS_LOG_WARNING); rs_add_logger(rs_logger_file, RS_LOG_DEBUG, NULL, fd); } if (dcc_getenv_bool("DISTCC_VERBOSE", 0)) { rs_trace_set_level(RS_LOG_DEBUG); } }