common/replacements/syslog.h

   1 /* nbdkit
   2  * Copyright Red Hat
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  * notice, this list of conditions and the following disclaimer.
  10  *
  11  * * Redistributions in binary form must reproduce the above copyright
  12  * notice, this list of conditions and the following disclaimer in the
  13  * documentation and/or other materials provided with the distribution.
  14  *
  15  * * Neither the name of Red Hat nor the names of its contributors may be
  16  * used to endorse or promote products derived from this software without
  17  * specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  22  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
  23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  26  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  27  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  28  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  29  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 /* Replacement for syslog for platforms which lack it.  Note this only
  34  * implements "just enough syslog" for nbdkit.  It's not a general
  35  * replacement.
  36  */
  37
  38 #ifndef NBDKIT_SYSLOG_H
  39 #define NBDKIT_SYSLOG_H
  40
  41 #include <config.h>
  42
  43 #ifdef HAVE_SYSLOG_H
  44
  45 #include_next <syslog.h>
  46
  47 #else
  48
  49 #include <stdarg.h>
  50
  51 /* Since the replacement function ignores the priority field, we only
  52  * need to define these to any integer.
  53  */
  54 #define LOG_PID 0
  55 #define LOG_ERR 0
  56 #define LOG_DAEMON 0
  57
  58 extern void openlog (const char *ident, int option, int facility);
  59 extern void syslog (int pri, const char *fmt, ...)
  60   __attribute__ ((format (printf, 2, 3)));
  61 extern void vsyslog (int pri, const char *fmt, va_list args)
  62   __attribute__ ((format (printf, 2, 0)));
  63
  64 #endif /* !HAVE_SYSLOG_H */
  65
  66 #endif /* NBDKIT_SYSLOG_H */