/***
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This file is part of libdaemon.
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Copyright 2003-2008 Lennart Poettering
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include "dlog.h"
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enum daemon_log_flags daemon_log_use = DAEMON_LOG_AUTO|DAEMON_LOG_STDERR;
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const char* daemon_log_ident = NULL;
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static int daemon_verbosity_level = LOG_INFO;
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void daemon_set_verbosity(int verbosity_prio) {
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/* Allow using negative verbosity levels to hide _all_ messages */
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if (verbosity_prio > 0 && (verbosity_prio & LOG_PRIMASK) != LOG_PRIMASK)
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daemon_log(LOG_ERR, "The value %d is not a valid priority value", verbosity_prio);
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daemon_verbosity_level = verbosity_prio & LOG_PRIMASK;
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}
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void daemon_logv(int prio, const char* template, va_list arglist) {
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int saved_errno;
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saved_errno = errno;
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if (daemon_log_use & DAEMON_LOG_SYSLOG) {
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openlog(daemon_log_ident ? daemon_log_ident : "UNKNOWN", LOG_PID, LOG_DAEMON);
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vsyslog(prio | LOG_DAEMON, template, arglist);
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}
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if (prio > daemon_verbosity_level)
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goto end_daemon_logv;
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if (daemon_log_use & DAEMON_LOG_STDERR) {
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vfprintf(stderr, template, arglist);
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fprintf(stderr, "\n");
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}
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if (daemon_log_use & DAEMON_LOG_STDOUT) {
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vfprintf(stdout, template, arglist);
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fprintf(stdout, "\n");
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}
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end_daemon_logv:
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errno = saved_errno;
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}
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void daemon_log(int prio, const char* template, ...) {
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va_list arglist;
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va_start(arglist, template);
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daemon_logv(prio, template, arglist);
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va_end(arglist);
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}
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char *daemon_ident_from_argv0(char *argv0) {
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char *p;
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if ((p = strrchr(argv0, '/')))
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return p+1;
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return argv0;
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}
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