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 /*-
    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  * $FreeBSD: src/sys/sys/syslog.h,v 1.27 2009/03/14 19:07:25 das Exp $
   31  * $DragonFly: src/sys/sys/syslog.h,v 1.5 2006/12/23 00:27:03 swildner Exp $
   32  */
   33 
   34 #ifndef _SYS_SYSLOG_H_
   35 #define _SYS_SYSLOG_H_
   36 
   37 #define _PATH_LOG       "/var/run/log"
   38 #define _PATH_LOG_PRIV  "/var/run/logpriv"
   39 #define _PATH_OLDLOG    "/dev/log"      /* backward compatibility */
   40 
   41 /*
   42  * priorities/facilities are encoded into a single 32-bit quantity, where the
   43  * bottom 3 bits are the priority (0-7) and the top 28 bits are the facility
   44  * (0-big number).  Both the priorities and the facilities map roughly
   45  * one-to-one to strings in the syslogd(8) source code.  This mapping is
   46  * included in this file.
   47  *
   48  * priorities (these are ordered)
   49  */
   50 #define LOG_EMERG       0       /* system is unusable */
   51 #define LOG_ALERT       1       /* action must be taken immediately */
   52 #define LOG_CRIT        2       /* critical conditions */
   53 #define LOG_ERR         3       /* error conditions */
   54 #define LOG_WARNING     4       /* warning conditions */
   55 #define LOG_NOTICE      5       /* normal but significant condition */
   56 #define LOG_INFO        6       /* informational */
   57 #define LOG_DEBUG       7       /* debug-level messages */
   58 
   59 #define LOG_PRIMASK     0x07    /* mask to extract priority part (internal) */
   60                                 /* extract priority */
   61 #define LOG_PRI(p)      ((p) & LOG_PRIMASK)
   62 #define LOG_MAKEPRI(fac, pri)   ((fac) | (pri))
   63 
   64 #ifdef SYSLOG_NAMES
   65 #define INTERNAL_NOPRI  0x10    /* the "no priority" priority */
   66                                 /* mark "facility" */
   67 #define INTERNAL_MARK   LOG_MAKEPRI((LOG_NFACILITIES<<3), 0)
   68 typedef struct _code {
   69         const char      *c_name;
   70         int             c_val;
   71 } CODE;
   72 
   73 CODE prioritynames[] = {
   74         { "alert",      LOG_ALERT,      },
   75         { "crit",       LOG_CRIT,       },
   76         { "debug",      LOG_DEBUG,      },
   77         { "emerg",      LOG_EMERG,      },
   78         { "err",        LOG_ERR,        },
   79         { "error",      LOG_ERR,        },      /* DEPRECATED */
   80         { "info",       LOG_INFO,       },
   81         { "none",       INTERNAL_NOPRI, },      /* INTERNAL */
   82         { "notice",     LOG_NOTICE,     },
   83         { "panic",      LOG_EMERG,      },      /* DEPRECATED */
   84         { "warn",       LOG_WARNING,    },      /* DEPRECATED */
   85         { "warning",    LOG_WARNING,    },
   86         { NULL,         -1,             }
   87 };
   88 #endif
   89 
   90 /* facility codes */
   91 #define LOG_KERN        (0<<3)  /* kernel messages */
   92 #define LOG_USER        (1<<3)  /* random user-level messages */
   93 #define LOG_MAIL        (2<<3)  /* mail system */
   94 #define LOG_DAEMON      (3<<3)  /* system daemons */
   95 #define LOG_AUTH        (4<<3)  /* authorization messages */
   96 #define LOG_SYSLOG      (5<<3)  /* messages generated internally by syslogd */
   97 #define LOG_LPR         (6<<3)  /* line printer subsystem */
   98 #define LOG_NEWS        (7<<3)  /* network news subsystem */
   99 #define LOG_UUCP        (8<<3)  /* UUCP subsystem */
  100 #define LOG_CRON        (9<<3)  /* clock daemon */
  101 #define LOG_AUTHPRIV    (10<<3) /* authorization messages (private) */
  102                                 /* Facility #10 clashes in DEC UNIX, where */
  103                                 /* it's defined as LOG_MEGASAFE for AdvFS  */
  104                                 /* event logging.                          */
  105 #define LOG_FTP         (11<<3) /* ftp daemon */
  106 #define LOG_NTP         (12<<3) /* NTP subsystem */
  107 #define LOG_SECURITY    (13<<3) /* security subsystems (firewalling, etc.) */
  108 #define LOG_CONSOLE     (14<<3) /* /dev/console output */
  109 
  110         /* other codes through 15 reserved for system use */
  111 #define LOG_LOCAL0      (16<<3) /* reserved for local use */
  112 #define LOG_LOCAL1      (17<<3) /* reserved for local use */
  113 #define LOG_LOCAL2      (18<<3) /* reserved for local use */
  114 #define LOG_LOCAL3      (19<<3) /* reserved for local use */
  115 #define LOG_LOCAL4      (20<<3) /* reserved for local use */
  116 #define LOG_LOCAL5      (21<<3) /* reserved for local use */
  117 #define LOG_LOCAL6      (22<<3) /* reserved for local use */
  118 #define LOG_LOCAL7      (23<<3) /* reserved for local use */
  119 
  120 #define LOG_NFACILITIES 24      /* current number of facilities */
  121 #define LOG_FACMASK     0x03f8  /* mask to extract facility part */
  122                                 /* facility of pri */
  123 #define LOG_FAC(p)      (((p) & LOG_FACMASK) >> 3)
  124 
  125 #ifdef SYSLOG_NAMES
  126 CODE facilitynames[] = {
  127         { "auth",       LOG_AUTH,       },
  128         { "authpriv",   LOG_AUTHPRIV,   },
  129         { "console",    LOG_CONSOLE,    },
  130         { "cron",       LOG_CRON,       },
  131         { "daemon",     LOG_DAEMON,     },
  132         { "ftp",        LOG_FTP,        },
  133         { "kern",       LOG_KERN,       },
  134         { "lpr",        LOG_LPR,        },
  135         { "mail",       LOG_MAIL,       },
  136         { "mark",       INTERNAL_MARK,  },      /* INTERNAL */
  137         { "news",       LOG_NEWS,       },
  138         { "ntp",        LOG_NTP,        },
  139         { "security",   LOG_SECURITY,   },
  140         { "syslog",     LOG_SYSLOG,     },
  141         { "user",       LOG_USER,       },
  142         { "uucp",       LOG_UUCP,       },
  143         { "local0",     LOG_LOCAL0,     },
  144         { "local1",     LOG_LOCAL1,     },
  145         { "local2",     LOG_LOCAL2,     },
  146         { "local3",     LOG_LOCAL3,     },
  147         { "local4",     LOG_LOCAL4,     },
  148         { "local5",     LOG_LOCAL5,     },
  149         { "local6",     LOG_LOCAL6,     },
  150         { "local7",     LOG_LOCAL7,     },
  151         { NULL,         -1,             }
  152 };
  153 #endif
  154 
  155 #ifdef _KERNEL
  156 #define LOG_PRINTF      -1      /* pseudo-priority to indicate use of kprintf */
  157 #endif
  158 
  159 /*
  160  * arguments to setlogmask.
  161  */
  162 #define LOG_MASK(pri)   (1 << (pri))            /* mask for one priority */
  163 #define LOG_UPTO(pri)   ((1 << ((pri)+1)) - 1)  /* all priorities through pri */
  164 
  165 /*
  166  * Option flags for openlog.
  167  *
  168  * LOG_ODELAY no longer does anything.
  169  * LOG_NDELAY is the inverse of what it used to be.
  170  */
  171 #define LOG_PID         0x01    /* log the pid with each message */
  172 #define LOG_CONS        0x02    /* log on the console if errors in sending */
  173 #define LOG_ODELAY      0x04    /* delay open until first syslog() (default) */
  174 #define LOG_NDELAY      0x08    /* don't delay open */
  175 #define LOG_NOWAIT      0x10    /* don't wait for console forks: DEPRECATED */
  176 #define LOG_PERROR      0x20    /* log to stderr as well */
  177 
  178 #ifdef _KERNEL
  179 
  180 #else /* not _KERNEL */
  181 
  182 /*
  183  * Don't use va_list in the vsyslog() prototype.   Va_list is typedef'd in two
  184  * places (<machine/varargs.h> and <machine/stdarg.h>), so if we include one
  185  * of them here we may collide with the utility's includes.  It's unreasonable
  186  * for utilities to have to include one of them to include syslog.h, so we get
  187  * __va_list from <sys/types.h> and use it.
  188  */
  189 #include <sys/cdefs.h>
  190 #include <sys/types.h>
  191 
  192 __BEGIN_DECLS
  193 void    closelog(void);
  194 void    openlog(const char *, int, int);
  195 int     setlogmask(int);
  196 void    syslog(int, const char *, ...) __printflike(2, 3);
  197 #if __BSD_VISIBLE
  198 void    vsyslog(int, const char *, __va_list) __printflike(2, 0);
  199 #endif
  200 __END_DECLS
  201 
  202 #endif /* !_KERNEL */
  203 
  204 #endif

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