bsd/sys/syslog.h

   1 /*
   2  * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
  29 /*
  30  * Copyright (c) 1982, 1986, 1988, 1993
  31  *      The Regents of the University of California.  All rights reserved.
  32  *
  33  * Redistribution and use in source and binary forms, with or without
  34  * modification, are permitted provided that the following conditions
  35  * are met:
  36  * 1. Redistributions of source code must retain the above copyright
  37  *    notice, this list of conditions and the following disclaimer.
  38  * 2. Redistributions in binary form must reproduce the above copyright
  39  *    notice, this list of conditions and the following disclaimer in the
  40  *    documentation and/or other materials provided with the distribution.
  41  * 3. All advertising materials mentioning features or use of this software
  42  *    must display the following acknowledgement:
  43  *      This product includes software developed by the University of
  44  *      California, Berkeley and its contributors.
  45  * 4. Neither the name of the University nor the names of its contributors
  46  *    may be used to endorse or promote products derived from this software
  47  *    without specific prior written permission.
  48  *
  49  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  50  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  51  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  52  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  53  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  54  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  55  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  56  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  57  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  58  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  59  * SUCH DAMAGE.
  60  *
  61  *      @(#)syslog.h    8.1 (Berkeley) 6/2/93
  62  */
  63
  64 #ifndef _SYS_SYSLOG_H_
  65 #define _SYS_SYSLOG_H_
  66
  67 #include <sys/appleapiopts.h>
  68 #include <sys/cdefs.h>
  69
  70 #define _PATH_LOG       "/var/run/syslog"
  71
  72 /*
  73  * priorities/facilities are encoded into a single 32-bit quantity, where the
  74  * bottom 3 bits are the priority (0-7) and the top 28 bits are the facility
  75  * (0-big number).  Both the priorities and the facilities map roughly
  76  * one-to-one to strings in the syslogd(8) source code.  This mapping is
  77  * included in this file.
  78  *
  79  * priorities (these are ordered)
  80  */
  81 #define LOG_EMERG       0       /* system is unusable */
  82 #define LOG_ALERT       1       /* action must be taken immediately */
  83 #define LOG_CRIT        2       /* critical conditions */
  84 #define LOG_ERR         3       /* error conditions */
  85 #define LOG_WARNING     4       /* warning conditions */
  86 #define LOG_NOTICE      5       /* normal but significant condition */
  87 #define LOG_INFO        6       /* informational */
  88 #define LOG_DEBUG       7       /* debug-level messages */
  89
  90 #define LOG_PRIMASK     0x07    /* mask to extract priority part (internal) */
  91                                 /* extract priority */
  92 #define LOG_PRI(p)      ((p) & LOG_PRIMASK)
  93 #define LOG_MAKEPRI(fac, pri)   (((fac) << 3) | (pri))
  94
  95 #ifdef SYSLOG_NAMES
  96 #define INTERNAL_NOPRI  0x10    /* the "no priority" priority */
  97                                 /* mark "facility" */
  98 #define INTERNAL_MARK   LOG_MAKEPRI(LOG_NFACILITIES, 0)
  99 typedef struct _code {
 100         char    *c_name;
 101         int     c_val;
 102 } CODE;
 103
 104 CODE prioritynames[] = {
 105         { "alert",      LOG_ALERT },
 106         { "crit",       LOG_CRIT },
 107         { "debug",      LOG_DEBUG },
 108         { "emerg",      LOG_EMERG },
 109         { "err",        LOG_ERR },
 110         { "error",      LOG_ERR },              /* DEPRECATED */
 111         { "info",       LOG_INFO },
 112         { "none",       INTERNAL_NOPRI },       /* INTERNAL */
 113         { "notice",     LOG_NOTICE },
 114         { "panic",      LOG_EMERG },            /* DEPRECATED */
 115         { "warn",       LOG_WARNING },          /* DEPRECATED */
 116         { "warning",    LOG_WARNING },
 117         { 0,            -1 }
 118 };
 119 #endif
 120
 121 /* facility codes */
 122 #define LOG_KERN                (0<<3)  /* kernel messages */
 123 #define LOG_USER                (1<<3)  /* random user-level messages */
 124 #define LOG_MAIL                (2<<3)  /* mail system */
 125 #define LOG_DAEMON              (3<<3)  /* system daemons */
 126 #define LOG_AUTH                (4<<3)  /* security/authorization messages */
 127 #define LOG_SYSLOG              (5<<3)  /* messages generated internally by syslogd */
 128 #define LOG_LPR                 (6<<3)  /* line printer subsystem */
 129 #define LOG_NEWS                (7<<3)  /* network news subsystem */
 130 #define LOG_UUCP                (8<<3)  /* UUCP subsystem */
 131 #define LOG_CRON                (9<<3)  /* clock daemon */
 132 #define LOG_AUTHPRIV    (10<<3) /* security/authorization messages (private) */
 133 #define LOG_FTP                 (11<<3) /* ftp daemon */
 134 #define LOG_NETINFO             (12<<3) /* NetInfo */
 135 #define LOG_REMOTEAUTH  (13<<3) /* remote authentication/authorization */
 136 #define LOG_INSTALL             (14<<3) /* installer subsystem */
 137 #define LOG_RAS                 (15<<3) /* Remote Access Service (VPN / PPP) */
 138
 139 #define LOG_LOCAL0      (16<<3) /* reserved for local use */
 140 #define LOG_LOCAL1      (17<<3) /* reserved for local use */
 141 #define LOG_LOCAL2      (18<<3) /* reserved for local use */
 142 #define LOG_LOCAL3      (19<<3) /* reserved for local use */
 143 #define LOG_LOCAL4      (20<<3) /* reserved for local use */
 144 #define LOG_LOCAL5      (21<<3) /* reserved for local use */
 145 #define LOG_LOCAL6      (22<<3) /* reserved for local use */
 146 #define LOG_LOCAL7      (23<<3) /* reserved for local use */
 147
 148 #define LOG_LAUNCHD             (24<<3) /* launchd - general bootstrap daemon */
 149
 150 #define LOG_NFACILITIES 25      /* current number of facilities */
 151 #define LOG_FACMASK     0x03f8  /* mask to extract facility part */
 152                                 /* facility of pri */
 153 #define LOG_FAC(p)      (((p) & LOG_FACMASK) >> 3)
 154
 155 #ifdef SYSLOG_NAMES
 156 CODE facilitynames[] = {
 157         { "auth",       LOG_AUTH },
 158         { "authpriv",   LOG_AUTHPRIV },
 159         { "cron",       LOG_CRON },
 160         { "daemon",     LOG_DAEMON },
 161         { "ftp",        LOG_FTP },
 162         { "install",    LOG_INSTALL },
 163         { "kern",       LOG_KERN },
 164         { "lpr",        LOG_LPR },
 165         { "mail",       LOG_MAIL },
 166         { "mark",       INTERNAL_MARK },        /* INTERNAL */
 167         { "netinfo",    LOG_NETINFO },
 168         { "ras",        LOG_RAS },
 169         { "remoteauth", LOG_REMOTEAUTH },
 170         { "news",       LOG_NEWS },
 171         { "security",   LOG_AUTH },             /* DEPRECATED */
 172         { "syslog",     LOG_SYSLOG },
 173         { "user",       LOG_USER },
 174         { "uucp",       LOG_UUCP },
 175         { "local0",     LOG_LOCAL0 },
 176         { "local1",     LOG_LOCAL1 },
 177         { "local2",     LOG_LOCAL2 },
 178         { "local3",     LOG_LOCAL3 },
 179         { "local4",     LOG_LOCAL4 },
 180         { "local5",     LOG_LOCAL5 },
 181         { "local6",     LOG_LOCAL6 },
 182         { "local7",     LOG_LOCAL7 },
 183         { "launchd",    LOG_LAUNCHD },
 184         { 0,            -1 }
 185 };
 186 #endif
 187
 188 #ifdef KERNEL
 189 #ifdef __APPLE_API_PRIVATE
 190 #define LOG_PRINTF      -1      /* pseudo-priority to indicate use of printf */
 191 #endif /* __APPLE_API_PRIVATE */
 192 #endif
 193
 194 /*
 195  * arguments to setlogmask.
 196  */
 197 #define LOG_MASK(pri)   (1 << (pri))            /* mask for one priority */
 198 #define LOG_UPTO(pri)   ((1 << ((pri)+1)) - 1)  /* all priorities through pri */
 199
 200 /*
 201  * Option flags for openlog.
 202  *
 203  * LOG_ODELAY no longer does anything.
 204  * LOG_NDELAY is the inverse of what it used to be.
 205  */
 206 #define LOG_PID         0x01    /* log the pid with each message */
 207 #define LOG_CONS        0x02    /* log on the console if errors in sending */
 208 #define LOG_ODELAY      0x04    /* delay open until first syslog() (default) */
 209 #define LOG_NDELAY      0x08    /* don't delay open */
 210 #define LOG_NOWAIT      0x10    /* don't wait for console forks: DEPRECATED */
 211 #define LOG_PERROR      0x20    /* log to stderr as well */
 212
 213 #ifndef KERNEL
 214 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 215 #include <sys/_types.h>         /* for __darwin_va_list */
 216 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
 217
 218 __BEGIN_DECLS
 219 void    closelog(void);
 220 void    openlog(const char *, int, int);
 221 int     setlogmask(int);
 222 void    syslog(int, const char *, ...) __DARWIN_LDBL_COMPAT(syslog);
 223 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 224 void    vsyslog(int, const char *, __darwin_va_list) __DARWIN_LDBL_COMPAT(vsyslog);
 225 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
 226 __END_DECLS
 227
 228 #else /* !KERNEL */
 229 #ifdef __APPLE_API_OBSOLETE
 230 /*
 231  * bit field descriptions for printf %r and %R formats
 232  */
 233
 234 /*
 235  * printf("%r %R", val, reg_descp);
 236  * struct reg_desc *reg_descp;
 237  *
 238  * the %r and %R formats allow formatted output of bit fields.
 239  * reg_descp points to an array of reg_desc structures, each element of the
 240  * array describes a range of bits within val.  the array should have a
 241  * final element with all structure elements 0.
 242  * %r outputs a string of the format "<bit field descriptions>"
 243  * %R outputs a string of the format "0x%x<bit field descriptions>"
 244  *
 245  * The fields in a reg_desc are:
 246  *      unsigned rd_mask;       An appropriate mask to isolate the bit field
 247  *                              within a word, and'ed with val
 248  *
 249  *      int rd_shift;           A shift amount to be done to the isolated
 250  *                              bit field.  done before printing the isolate
 251  *                              bit field with rd_format and before searching
 252  *                              for symbolic value names in rd_values
 253  *
 254  *      char *rd_name;          If non-null, a bit field name to label any
 255  *                              out from rd_format or searching rd_values.
 256  *                              if neither rd_format or rd_values is non-null
 257  *                              rd_name is printed only if the isolated
 258  *                              bit field is non-null.
 259  *
 260  *      char *rd_format;        If non-null, the shifted bit field value
 261  *                              is printed using this format.
 262  *
 263  *      struct reg_values *rd_values;   If non-null, a pointer to a table
 264  *                              matching numeric values with symbolic names.
 265  *                              rd_values are searched and the symbolic
 266  *                              value is printed if a match is found, if no
 267  *                              match is found "???" is printed.
 268  *
 269  * printf("%n %N", val, reg_valuesp);
 270  * struct reg_values *reg_valuesp;
 271  *
 272  * the %n and %N formats allow formatted output of symbolic constants
 273  * Reg_valuesp is a pointer to an array of struct reg_values which pairs
 274  * numeric values (rv_value) with symbolic names (rv_name).  The array is
 275  * terminated with a reg_values entry that has a null pointer for the
 276  * rv_name field.  When %n or %N is used rd_values are searched and the
 277  * symbolic value is printed if a match is found, if no match is found
 278  * "???" is printed.
 279  *
 280  * printf("%C", val);
 281  * int val;
 282  *
 283  * the %C format prints an int as a 4 character string.
 284  * The most significant byte of the int is printed first, the least
 285  * significant byte is printed last.
 286  */
 287
 288 /*
 289  * register values
 290  * map between numeric values and symbolic values
 291  */
 292 struct reg_values {
 293         unsigned rv_value;
 294         char *rv_name;
 295 };
 296
 297 /*
 298  * register descriptors are used for formatted prints of register values
 299  * rd_mask and rd_shift must be defined, other entries may be null
 300  */
 301 struct reg_desc {
 302         unsigned rd_mask;       /* mask to extract field */
 303         int rd_shift;           /* shift for extracted value, - >>, + << */
 304         char *rd_name;          /* field name */
 305         char *rd_format;        /* format to print field */
 306         struct reg_values *rd_values;   /* symbolic names of values */
 307 };
 308
 309 #endif /* __APPLE_API_OBSOLETE */
 310
 311 #include <stdarg.h>
 312 __BEGIN_DECLS
 313 void    logpri(int);
 314 void    log(int, const char *, ...);
 315 int     vaddlog(const char *, va_list);
 316 void    logtime(time_t);
 317 __END_DECLS
 318
 319 #endif /* !KERNEL */
 320 #endif /* !_SYS_SYSLOG_H_ */