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88 lines
2.3 KiB
C
88 lines
2.3 KiB
C
/*
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* logging.h
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*
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* Simple logging functions that can be compiled away into nothing.
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*
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* Copyright (C) 2003,2004 Greg Kroah-Hartman <greg@kroah.com>
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* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#ifndef LOGGING_H
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#define LOGGING_H
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#define info(format, arg...) do { } while (0)
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#define dbg(format, arg...) do { } while (0)
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#define dbg_parse(format, arg...) do { } while (0)
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#define init_logging(foo) do { } while (0)
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#ifdef LOG
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#include <stdarg.h>
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#include <unistd.h>
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#include <syslog.h>
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#undef info
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#define info(format, arg...) \
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do { \
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log_message (LOG_INFO , format , ## arg); \
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} while (0)
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#ifdef DEBUG
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#undef dbg
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#define dbg(format, arg...) \
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do { \
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log_message (LOG_DEBUG , "%s: " format , __FUNCTION__ , ## arg); \
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} while (0)
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#endif
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/* Parser needs it's own debugging statement, we usually don't care about this at all */
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#ifdef DEBUG_PARSER
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#undef dbg_parse
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#define dbg_parse(format, arg...) \
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do { \
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log_message (LOG_DEBUG , "%s: " format , __FUNCTION__ , ## arg); \
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} while (0)
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#endif
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/* each program must declare this variable and function somewhere */
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extern unsigned char logname[42];
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extern int log_ok(void);
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static void log_message (int level, const char *format, ...)
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__attribute__ ((format (printf, 2, 3)));
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static inline void log_message (int level, const char *format, ...)
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{
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va_list args;
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if (!log_ok())
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return;
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va_start(args, format);
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vsyslog(level, format, args);
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va_end(args);
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}
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#undef init_logging
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static inline void init_logging(char *program_name)
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{
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snprintf(logname, 42,"%s[%d]", program_name, getpid());
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openlog(logname, 0, LOG_DAEMON);
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}
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#endif /* LOG */
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#endif
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