The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/syslog.h

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    1 /*      $OpenBSD: syslog.h,v 1.17 2020/05/21 01:39:56 visa Exp $        */
    2 /*      $NetBSD: syslog.h,v 1.14 1996/04/03 20:46:44 christos Exp $     */
    3 
    4 /*
    5  * Copyright (c) 1982, 1986, 1988, 1993
    6  *      The Regents of the University of California.  All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 3. Neither the name of the University nor the names of its contributors
   17  *    may be used to endorse or promote products derived from this software
   18  *    without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   30  * SUCH DAMAGE.
   31  *
   32  *      @(#)syslog.h    8.1 (Berkeley) 6/2/93
   33  */
   34 
   35 #ifndef _SYS_SYSLOG_H_
   36 #define _SYS_SYSLOG_H_
   37 
   38 #define _PATH_LOG       "/dev/log"
   39 
   40 #define LIOCSFD         _IOW('l', 127, int)     /* set sendsyslog() fd */
   41 
   42 #define LOG_MAXLINE     8192                    /* maximum line length */
   43 
   44 /*
   45  * priorities/facilities are encoded into a single 32-bit quantity, where the
   46  * bottom 3 bits are the priority (0-7) and the top 28 bits are the facility
   47  * (0-big number).  Both the priorities and the facilities map roughly
   48  * one-to-one to strings in the syslogd(8) source code.  This mapping is
   49  * included in this file.
   50  *
   51  * priorities (these are ordered)
   52  */
   53 #define LOG_EMERG       0       /* system is unusable */
   54 #define LOG_ALERT       1       /* action must be taken immediately */
   55 #define LOG_CRIT        2       /* critical conditions */
   56 #define LOG_ERR         3       /* error conditions */
   57 #define LOG_WARNING     4       /* warning conditions */
   58 #define LOG_NOTICE      5       /* normal but significant condition */
   59 #define LOG_INFO        6       /* informational */
   60 #define LOG_DEBUG       7       /* debug-level messages */
   61 
   62 #define LOG_PRIMASK     0x07    /* mask to extract priority part (internal) */
   63                                 /* extract priority */
   64 #define LOG_PRI(p)      ((p) & LOG_PRIMASK)
   65 
   66 #ifdef SYSLOG_NAMES
   67 #define INTERNAL_NOPRI  0x10    /* the "no priority" priority */
   68                                 /* mark "facility" */
   69 #define INTERNAL_MARK   (LOG_NFACILITIES<<3)
   70 typedef struct _code {
   71         char    *c_name;
   72         int     c_val;
   73 } CODE;
   74 
   75 CODE prioritynames[] = {
   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         { "auth",       LOG_AUTH },
  124         { "authpriv",   LOG_AUTHPRIV },
  125         { "cron",       LOG_CRON },
  126         { "daemon",     LOG_DAEMON },
  127         { "ftp",        LOG_FTP },
  128         { "kern",       LOG_KERN },
  129         { "lpr",        LOG_LPR },
  130         { "mail",       LOG_MAIL },
  131         { "mark",       INTERNAL_MARK },        /* INTERNAL */
  132         { "news",       LOG_NEWS },
  133         { "security",   LOG_AUTH },             /* DEPRECATED */
  134         { "syslog",     LOG_SYSLOG },
  135         { "user",       LOG_USER },
  136         { "uucp",       LOG_UUCP },
  137         { "local0",     LOG_LOCAL0 },
  138         { "local1",     LOG_LOCAL1 },
  139         { "local2",     LOG_LOCAL2 },
  140         { "local3",     LOG_LOCAL3 },
  141         { "local4",     LOG_LOCAL4 },
  142         { "local5",     LOG_LOCAL5 },
  143         { "local6",     LOG_LOCAL6 },
  144         { "local7",     LOG_LOCAL7 },
  145         { NULL,         -1 },
  146 };
  147 #endif
  148 
  149 /* Used by reentrant functions */
  150 
  151 struct syslog_data {
  152         int     log_stat;
  153         const char      *log_tag;
  154         int     log_fac;
  155         int     log_mask;
  156 };
  157 
  158 #define SYSLOG_DATA_INIT {0, (const char *)0, LOG_USER, 0xff}
  159 
  160 #ifdef _KERNEL
  161 #define LOG_PRINTF      -1      /* pseudo-priority to indicate use of printf */
  162 #endif
  163 
  164 /*
  165  * arguments to setlogmask.
  166  */
  167 #define LOG_MASK(pri)   (1 << (pri))            /* mask for one priority */
  168 #define LOG_UPTO(pri)   ((1 << ((pri)+1)) - 1)  /* all priorities through pri */
  169 
  170 /*
  171  * Option flags for openlog.
  172  *
  173  * LOG_ODELAY no longer does anything.
  174  * LOG_NDELAY is the inverse of what it used to be.
  175  */
  176 #define LOG_PID         0x01    /* log the pid with each message */
  177 #define LOG_CONS        0x02    /* log on the console if errors in sending */
  178 #define LOG_ODELAY      0x04    /* delay open until first syslog() (default) */
  179 #define LOG_NDELAY      0x08    /* don't delay open */
  180 #define LOG_NOWAIT      0x10    /* don't wait for console forks: DEPRECATED */
  181 #define LOG_PERROR      0x20    /* log to stderr as well */
  182 
  183 #ifndef _KERNEL
  184 
  185 /*
  186  * Don't use va_list in the vsyslog() prototype.   Va_list is typedef'd
  187  * in <stdarg.h>.  Including it here may collide with the utility's includes.
  188  * It's unreasonable for utilities to have to include it to include <syslog.h>,
  189  * so we get __va_list from <machine/_types.h> and use it.
  190  */
  191 #include <sys/cdefs.h>
  192 #include <machine/_types.h>
  193 
  194 __BEGIN_DECLS
  195 void    closelog(void);
  196 void    openlog(const char *, int, int);
  197 int     setlogmask(int);
  198 void    syslog(int, const char *, ...)
  199     __attribute__((__format__(__syslog__,2,3)));
  200 void    vsyslog(int, const char *, __va_list);
  201 void    closelog_r(struct syslog_data *);
  202 void    openlog_r(const char *, int, int, struct syslog_data *);
  203 int     setlogmask_r(int, struct syslog_data *);
  204 void    syslog_r(int, struct syslog_data *, const char *, ...)
  205      __attribute__((__format__(__syslog__,3,4)));
  206 void    vsyslog_r(int, struct syslog_data *, const char *, __va_list);
  207 __END_DECLS
  208 
  209 #else /* !_KERNEL */
  210 
  211 void    logpri(int);
  212 void    log(int, const char *, ...)
  213     __attribute__((__format__(__kprintf__,2,3)));
  214 int     addlog(const char *, ...)
  215     __attribute__((__format__(__kprintf__,1,2)));
  216 void    logwakeup(void);
  217 
  218 #endif /* !_KERNEL */
  219 #endif /* !_SYS_SYSLOG_H_ */
  220 

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