9dd2dcff70
This offers an increased level of security, as the arguments will be checked for validity against the format string at compile time. The format attribute is supported by both GCC and Clang, so there shouldn't be any portability issues. Signed-off-by: Kristupas Savickas <savickas.kristupas@gmail.com>
43 lines
1.4 KiB
C
43 lines
1.4 KiB
C
/*
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* ulog - simple logging functions
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*
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* Copyright (C) 2015 Jo-Philipp Wich <jow@openwrt.org>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef __LIBUBOX_ULOG_H
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#define __LIBUBOX_ULOG_H
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#include <syslog.h>
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enum {
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ULOG_KMSG = (1 << 0),
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ULOG_SYSLOG = (1 << 1),
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ULOG_STDIO = (1 << 2)
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};
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void ulog_open(int channels, int facility, const char *ident);
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void ulog_close(void);
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void ulog_threshold(int threshold);
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void ulog(int priority, const char *fmt, ...)
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__attribute__ ((format (printf, 2, 3)));
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#define ULOG_INFO(fmt, ...) ulog(LOG_INFO, fmt, ## __VA_ARGS__)
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#define ULOG_NOTE(fmt, ...) ulog(LOG_NOTICE, fmt, ## __VA_ARGS__)
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#define ULOG_WARN(fmt, ...) ulog(LOG_WARNING, fmt, ## __VA_ARGS__)
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#define ULOG_ERR(fmt, ...) ulog(LOG_ERR, fmt, ## __VA_ARGS__)
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#endif
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