Ticket #54993: syslog.h

/*
 * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * unlawful or unlicensed copies of an Apple operating system, or to
 * circumvent, violate, or enable the circumvention or violation of, any
 * terms of an Apple operating system software license agreement.
 * 
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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 */
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*-
 * Copyright (c) 1982, 1986, 1988, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)syslog.h    8.1 (Berkeley) 6/2/93
 * $FreeBSD: src/sys/sys/syslog.h,v 1.27.2.1.4.1 2010/06/14 02:09:06 kensmith Exp $
 */

#ifndef _SYS_SYSLOG_H_
#define _SYS_SYSLOG_H_

#include <sys/appleapiopts.h>
#include <sys/cdefs.h>

#define _PATH_LOG       "/var/run/syslog"

/*
 * priorities/facilities are encoded into a single 32-bit quantity, where the
 * bottom 3 bits are the priority (0-7) and the top 28 bits are the facility
 * (0-big number).  Both the priorities and the facilities map roughly
 * one-to-one to strings in the syslogd(8) source code.  This mapping is
 * included in this file.
 *
 * priorities (these are ordered)
 */
#define LOG_EMERG       0       /* system is unusable */
#define LOG_ALERT       1       /* action must be taken immediately */
#define LOG_CRIT        2       /* critical conditions */
#define LOG_ERR         3       /* error conditions */
#define LOG_WARNING     4       /* warning conditions */
#define LOG_NOTICE      5       /* normal but significant condition */
#define LOG_INFO        6       /* informational */
#define LOG_DEBUG       7       /* debug-level messages */

#define LOG_PRIMASK     0x07    /* mask to extract priority part (internal) */
/* extract priority */
#define LOG_PRI(p)      ((p) & LOG_PRIMASK)
#define LOG_MAKEPRI(fac, pri)   ((fac) | (pri))

#ifdef SYSLOG_NAMES
#define INTERNAL_NOPRI  0x10    /* the "no priority" priority */
/* mark "facility" */
#define INTERNAL_MARK   LOG_MAKEPRI((LOG_NFACILITIES<<3), 0)
typedef struct _code {
        const char      *c_name;
        int             c_val;
} CODE;

CODE prioritynames[] = {
        { "alert",      LOG_ALERT,      },
        { "crit",       LOG_CRIT,       },
        { "debug",      LOG_DEBUG,      },
        { "emerg",      LOG_EMERG,      },
        { "err",        LOG_ERR,        },
        { "error",      LOG_ERR,        },      /* DEPRECATED */
        { "info",       LOG_INFO,       },
        { "none",       INTERNAL_NOPRI, },      /* INTERNAL */
        { "notice",     LOG_NOTICE,     },
        { "panic",      LOG_EMERG,      },      /* DEPRECATED */
        { "warn",       LOG_WARNING,    },      /* DEPRECATED */
        { "warning",    LOG_WARNING,    },
        { NULL,         -1,             }
};
#endif

/* facility codes */
#define LOG_KERN        (0<<3)  /* kernel messages */
#define LOG_USER        (1<<3)  /* random user-level messages */
#define LOG_MAIL        (2<<3)  /* mail system */
#define LOG_DAEMON      (3<<3)  /* system daemons */
#define LOG_AUTH        (4<<3)  /* authorization messages */
#define LOG_SYSLOG      (5<<3)  /* messages generated internally by syslogd */
#define LOG_LPR         (6<<3)  /* line printer subsystem */
#define LOG_NEWS        (7<<3)  /* network news subsystem */
#define LOG_UUCP        (8<<3)  /* UUCP subsystem */
#define LOG_CRON        (9<<3)  /* clock daemon */
#define LOG_AUTHPRIV    (10<<3) /* authorization messages (private) */
/* Facility #10 clashes in DEC UNIX, where */
/* it's defined as LOG_MEGASAFE for AdvFS  */
/* event logging.                          */
#define LOG_FTP         (11<<3) /* ftp daemon */
//#define       LOG_NTP         (12<<3) /* NTP subsystem */
//#define       LOG_SECURITY    (13<<3) /* security subsystems (firewalling, etc.) */
//#define       LOG_CONSOLE     (14<<3) /* /dev/console output */
#define LOG_NETINFO     (12<<3) /* NetInfo */
#define LOG_REMOTEAUTH  (13<<3) /* remote authentication/authorization */
#define LOG_INSTALL     (14<<3) /* installer subsystem */
#define LOG_RAS         (15<<3) /* Remote Access Service (VPN / PPP) */

/* other codes through 15 reserved for system use */
#define LOG_LOCAL0      (16<<3) /* reserved for local use */
#define LOG_LOCAL1      (17<<3) /* reserved for local use */
#define LOG_LOCAL2      (18<<3) /* reserved for local use */
#define LOG_LOCAL3      (19<<3) /* reserved for local use */
#define LOG_LOCAL4      (20<<3) /* reserved for local use */
#define LOG_LOCAL5      (21<<3) /* reserved for local use */
#define LOG_LOCAL6      (22<<3) /* reserved for local use */
#define LOG_LOCAL7      (23<<3) /* reserved for local use */

#define LOG_LAUNCHD     (24<<3) /* launchd - general bootstrap daemon */

#define LOG_NFACILITIES 25      /* current number of facilities */
#define LOG_FACMASK     0x03f8  /* mask to extract facility part */
/* facility of pri */
#define LOG_FAC(p)      (((p) & LOG_FACMASK) >> 3)

#ifdef SYSLOG_NAMES
CODE facilitynames[] = {
        { "auth",       LOG_AUTH,       },
        { "authpriv",   LOG_AUTHPRIV,   },
        { "cron",       LOG_CRON,       },
        { "daemon",     LOG_DAEMON,     },
        { "ftp",        LOG_FTP,        },
        { "install",    LOG_INSTALL     },
        { "kern",       LOG_KERN,       },
        { "lpr",        LOG_LPR,        },
        { "mail",       LOG_MAIL,       },
        { "mark",       INTERNAL_MARK,  },      /* INTERNAL */
        { "netinfo",    LOG_NETINFO,    },
        { "ras",        LOG_RAS         },
        { "remoteauth", LOG_REMOTEAUTH  },
        { "news",       LOG_NEWS,       },
        { "security",   LOG_AUTH        },      /* DEPRECATED */
        { "syslog",     LOG_SYSLOG,     },
        { "user",       LOG_USER,       },
        { "uucp",       LOG_UUCP,       },
        { "local0",     LOG_LOCAL0,     },
        { "local1",     LOG_LOCAL1,     },
        { "local2",     LOG_LOCAL2,     },
        { "local3",     LOG_LOCAL3,     },
        { "local4",     LOG_LOCAL4,     },
        { "local5",     LOG_LOCAL5,     },
        { "local6",     LOG_LOCAL6,     },
        { "local7",     LOG_LOCAL7,     },
        { "launchd",    LOG_LAUNCHD     },
        { NULL,         -1,             }
};
#endif


/*
 * arguments to setlogmask.
 */
#define LOG_MASK(pri)   (1 << (pri))            /* mask for one priority */
#define LOG_UPTO(pri)   ((1 << ((pri)+1)) - 1)  /* all priorities through pri */

/*
 * Option flags for openlog.
 *
 * LOG_ODELAY no longer does anything.
 * LOG_NDELAY is the inverse of what it used to be.
 */
#define LOG_PID         0x01    /* log the pid with each message */
#define LOG_CONS        0x02    /* log on the console if errors in sending */
#define LOG_ODELAY      0x04    /* delay open until first syslog() (default) */
#define LOG_NDELAY      0x08    /* don't delay open */
#define LOG_NOWAIT      0x10    /* don't wait for console forks: DEPRECATED */
#define LOG_PERROR      0x20    /* log to stderr as well */


/*
 * Don't use va_list in the vsyslog() prototype.   Va_list is typedef'd in two
 * places (<machine/varargs.h> and <machine/stdarg.h>), so if we include one
 * of them here we may collide with the utility's includes.  It's unreasonable
 * for utilities to have to include one of them to include syslog.h, so we get
 * __va_list from <sys/_types.h> and use it.
 */
#include <sys/_types.h>

__BEGIN_DECLS
void    closelog(void);
void    openlog(const char *, int, int);
int     setlogmask(int);
#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && __DARWIN_C_LEVEL >= __DARWIN_C_FULL
void    syslog(int, const char *, ...) 
    __DARWIN_ALIAS_STARTING(__MAC_10_13, __IPHONE_NA, __DARWIN_EXTSN(syslog))
    __printflike(2, 3) __not_tail_called 
;
#else
void    syslog(int, const char *, ...) __printflike(2, 3) __not_tail_called;
#endif
#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
void    vsyslog(int, const char *, __darwin_va_list) __printflike(2, 0) __not_tail_called;
#endif
__END_DECLS

#endif /* !_SYS_SYSLOG_H_ */