misc/sys/syslog.h

   1 /*
   2  * Copyright (c) 1982, 1986, 1988, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 4. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  *      @(#)syslog.h    8.1 (Berkeley) 6/2/93
  30  */
  31
  32 #ifndef _SYS_SYSLOG_H
  33 #define _SYS_SYSLOG_H 1
  34
  35 #include <features.h>
  36 #define __need___va_list
  37 #include <stdarg.h>
  38
  39 /* This file defines _PATH_LOG.  */
  40 #include <bits/syslog-path.h>
  41
  42 /*
  43  * priorities/facilities are encoded into a single 32-bit quantity, where the
  44  * bottom 3 bits are the priority (0-7) and the top 28 bits are the facility
  45  * (0-big number).  Both the priorities and the facilities map roughly
  46  * one-to-one to strings in the syslogd(8) source code.  This mapping is
  47  * included in this file.
  48  *
  49  * priorities (these are ordered)
  50  */
  51 #define LOG_EMERG       0       /* system is unusable */
  52 #define LOG_ALERT       1       /* action must be taken immediately */
  53 #define LOG_CRIT        2       /* critical conditions */
  54 #define LOG_ERR         3       /* error conditions */
  55 #define LOG_WARNING     4       /* warning conditions */
  56 #define LOG_NOTICE      5       /* normal but significant condition */
  57 #define LOG_INFO        6       /* informational */
  58 #define LOG_DEBUG       7       /* debug-level messages */
  59
  60 #define LOG_PRIMASK     0x07    /* mask to extract priority part (internal) */
  61                                 /* extract priority */
  62 #define LOG_PRI(p)      ((p) & LOG_PRIMASK)
  63 #define LOG_MAKEPRI(fac, pri)   (((fac) << 3) | (pri))
  64
  65 #ifdef SYSLOG_NAMES
  66 #define INTERNAL_NOPRI  0x10    /* the "no priority" priority */
  67                                 /* mark "facility" */
  68 #define INTERNAL_MARK   LOG_MAKEPRI(LOG_NFACILITIES, 0)
  69 typedef struct _code {
  70         char    *c_name;
  71         int     c_val;
  72 } CODE;
  73
  74 CODE prioritynames[] =
  75   {
  76     { "alert", LOG_ALERT },
  77     { "crit", LOG_CRIT },
  78     { "debug", LOG_DEBUG },
  79     { "emerg", LOG_EMERG },
  80     { "err", LOG_ERR },
  81     { "error", LOG_ERR },               /* DEPRECATED */
  82     { "info", LOG_INFO },
  83     { "none", INTERNAL_NOPRI },         /* INTERNAL */
  84     { "notice", LOG_NOTICE },
  85     { "panic", LOG_EMERG },             /* DEPRECATED */
  86     { "warn", LOG_WARNING },            /* DEPRECATED */
  87     { "warning", LOG_WARNING },
  88     { NULL, -1 }
  89   };
  90 #endif
  91
  92 /* facility codes */
  93 #define LOG_KERN        (0<<3)  /* kernel messages */
  94 #define LOG_USER        (1<<3)  /* random user-level messages */
  95 #define LOG_MAIL        (2<<3)  /* mail system */
  96 #define LOG_DAEMON      (3<<3)  /* system daemons */
  97 #define LOG_AUTH        (4<<3)  /* security/authorization messages */
  98 #define LOG_SYSLOG      (5<<3)  /* messages generated internally by syslogd */
  99 #define LOG_LPR         (6<<3)  /* line printer subsystem */
 100 #define LOG_NEWS        (7<<3)  /* network news subsystem */
 101 #define LOG_UUCP        (8<<3)  /* UUCP subsystem */
 102 #define LOG_CRON        (9<<3)  /* clock daemon */
 103 #define LOG_AUTHPRIV    (10<<3) /* security/authorization messages (private) */
 104 #define LOG_FTP         (11<<3) /* ftp daemon */
 105
 106         /* other codes through 15 reserved for system use */
 107 #define LOG_LOCAL0      (16<<3) /* reserved for local use */
 108 #define LOG_LOCAL1      (17<<3) /* reserved for local use */
 109 #define LOG_LOCAL2      (18<<3) /* reserved for local use */
 110 #define LOG_LOCAL3      (19<<3) /* reserved for local use */
 111 #define LOG_LOCAL4      (20<<3) /* reserved for local use */
 112 #define LOG_LOCAL5      (21<<3) /* reserved for local use */
 113 #define LOG_LOCAL6      (22<<3) /* reserved for local use */
 114 #define LOG_LOCAL7      (23<<3) /* reserved for local use */
 115
 116 #define LOG_NFACILITIES 24      /* current number of facilities */
 117 #define LOG_FACMASK     0x03f8  /* mask to extract facility part */
 118                                 /* facility of pri */
 119 #define LOG_FAC(p)      (((p) & LOG_FACMASK) >> 3)
 120
 121 #ifdef SYSLOG_NAMES
 122 CODE facilitynames[] =
 123   {
 124     { "auth", LOG_AUTH },
 125     { "authpriv", LOG_AUTHPRIV },
 126     { "cron", LOG_CRON },
 127     { "daemon", LOG_DAEMON },
 128     { "ftp", LOG_FTP },
 129     { "kern", LOG_KERN },
 130     { "lpr", LOG_LPR },
 131     { "mail", LOG_MAIL },
 132     { "mark", INTERNAL_MARK },          /* INTERNAL */
 133     { "news", LOG_NEWS },
 134     { "security", LOG_AUTH },           /* DEPRECATED */
 135     { "syslog", LOG_SYSLOG },
 136     { "user", LOG_USER },
 137     { "uucp", LOG_UUCP },
 138     { "local0", LOG_LOCAL0 },
 139     { "local1", LOG_LOCAL1 },
 140     { "local2", LOG_LOCAL2 },
 141     { "local3", LOG_LOCAL3 },
 142     { "local4", LOG_LOCAL4 },
 143     { "local5", LOG_LOCAL5 },
 144     { "local6", LOG_LOCAL6 },
 145     { "local7", LOG_LOCAL7 },
 146     { NULL, -1 }
 147   };
 148 #endif
 149
 150 /*
 151  * arguments to setlogmask.
 152  */
 153 #define LOG_MASK(pri)   (1 << (pri))            /* mask for one priority */
 154 #define LOG_UPTO(pri)   ((1 << ((pri)+1)) - 1)  /* all priorities through pri */
 155
 156 /*
 157  * Option flags for openlog.
 158  *
 159  * LOG_ODELAY no longer does anything.
 160  * LOG_NDELAY is the inverse of what it used to be.
 161  */
 162 #define LOG_PID         0x01    /* log the pid with each message */
 163 #define LOG_CONS        0x02    /* log on the console if errors in sending */
 164 #define LOG_ODELAY      0x04    /* delay open until first syslog() (default) */
 165 #define LOG_NDELAY      0x08    /* don't delay open */
 166 #define LOG_NOWAIT      0x10    /* don't wait for console forks: DEPRECATED */
 167 #define LOG_PERROR      0x20    /* log to stderr as well */
 168
 169 __BEGIN_DECLS
 170
 171 /* Close descriptor used to write to system logger.
 172
 173    This function is a possible cancellation point and therefore not
 174    marked with __THROW.  */
 175 extern void closelog (void);
 176
 177 /* Open connection to system logger.
 178
 179    This function is a possible cancellation point and therefore not
 180    marked with __THROW.  */
 181 extern void openlog (__const char *__ident, int __option, int __facility);
 182
 183 /* Set the log mask level.  */
 184 extern int setlogmask (int __mask) __THROW;
 185
 186 /* Generate a log message using FMT string and option arguments.
 187
 188    This function is a possible cancellation point and therefore not
 189    marked with __THROW.  */
 190 extern void syslog (int __pri, __const char *__fmt, ...)
 191      __attribute__ ((__format__ (__printf__, 2, 3)));
 192
 193 #ifdef __USE_BSD
 194 /* Generate a log message using FMT and using arguments pointed to by AP.
 195
 196    This function is not part of POSIX and therefore no official
 197    cancellation point.  But due to similarity with an POSIX interface
 198    or due to the implementation it is a cancellation point and
 199    therefore not marked with __THROW.  */
 200 extern void vsyslog (int __pri, __const char *__fmt, __gnuc_va_list __ap)
 201      __attribute__ ((__format__ (__printf__, 2, 0)));
 202 #endif
 203
 204
 205 /* Define some macros helping to catch buffer overflows.  */
 206 #if __USE_FORTIFY_LEVEL > 0 && defined __extern_always_inline
 207 # include <bits/syslog.h>
 208 #endif
 209 #ifdef __LDBL_COMPAT
 210 # include <bits/syslog-ldbl.h>
 211 #endif
 212
 213 __END_DECLS
 214
 215 #endif /* sys/syslog.h */