Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
Eric Andersen | 3843e96 | 1999-11-25 07:30:46 +0000 | [diff] [blame] | 2 | /* |
| 3 | * Mini syslogd implementation for busybox |
| 4 | * |
Eric Andersen | c7bda1c | 2004-03-15 08:29:22 +0000 | [diff] [blame] | 5 | * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org> |
Eric Andersen | 3843e96 | 1999-11-25 07:30:46 +0000 | [diff] [blame] | 6 | * |
Erik Andersen | f13df37 | 2000-04-18 23:51:51 +0000 | [diff] [blame] | 7 | * Copyright (C) 2000 by Karl M. Hegbloom <karlheg@debian.org> |
| 8 | * |
Glenn L McGrath | 6ed7759 | 2002-12-12 10:54:48 +0000 | [diff] [blame] | 9 | * "circular buffer" Copyright (C) 2001 by Gennady Feldman <gfeldman@gena01.com> |
Mark Whitley | 6317c4b | 2001-03-12 22:51:50 +0000 | [diff] [blame] | 10 | * |
Glenn L McGrath | 6ed7759 | 2002-12-12 10:54:48 +0000 | [diff] [blame] | 11 | * Maintainer: Gennady Feldman <gfeldman@gena01.com> as of Mar 12, 2001 |
Mark Whitley | 6bff9cc | 2001-03-12 23:41:34 +0000 | [diff] [blame] | 12 | * |
Denys Vlasenko | 0ef64bd | 2010-08-16 20:14:46 +0200 | [diff] [blame] | 13 | * Licensed under GPLv2 or later, see file LICENSE in this source tree. |
Eric Andersen | 3843e96 | 1999-11-25 07:30:46 +0000 | [diff] [blame] | 14 | */ |
Eric Andersen | b99df0f | 1999-11-24 09:04:33 +0000 | [diff] [blame] | 15 | |
Pere Orga | 5bc8c00 | 2011-04-11 03:29:49 +0200 | [diff] [blame] | 16 | //usage:#define syslogd_trivial_usage |
| 17 | //usage: "[OPTIONS]" |
| 18 | //usage:#define syslogd_full_usage "\n\n" |
Denys Vlasenko | aeab42e | 2011-05-25 11:58:56 +0200 | [diff] [blame] | 19 | //usage: "System logging utility\n" |
| 20 | //usage: IF_NOT_FEATURE_SYSLOGD_CFG( |
| 21 | //usage: "(this version of syslogd ignores /etc/syslog.conf)\n" |
| 22 | //usage: ) |
Pere Orga | 5bc8c00 | 2011-04-11 03:29:49 +0200 | [diff] [blame] | 23 | //usage: "\n -n Run in foreground" |
Denys Vlasenko | aeab42e | 2011-05-25 11:58:56 +0200 | [diff] [blame] | 24 | //usage: "\n -O FILE Log to FILE (default:/var/log/messages)" |
| 25 | //usage: "\n -l N Log only messages more urgent than prio N (1-8)" |
| 26 | //usage: "\n -S Smaller output" |
Pere Orga | 5bc8c00 | 2011-04-11 03:29:49 +0200 | [diff] [blame] | 27 | //usage: IF_FEATURE_ROTATE_LOGFILE( |
Denys Vlasenko | aeab42e | 2011-05-25 11:58:56 +0200 | [diff] [blame] | 28 | //usage: "\n -s SIZE Max size (KB) before rotation (default:200KB, 0=off)" |
| 29 | //usage: "\n -b N N rotated logs to keep (default:1, max=99, 0=purge)" |
| 30 | //usage: ) |
Pere Orga | 5bc8c00 | 2011-04-11 03:29:49 +0200 | [diff] [blame] | 31 | //usage: IF_FEATURE_REMOTE_LOG( |
| 32 | //usage: "\n -R HOST[:PORT] Log to IP or hostname on PORT (default PORT=514/UDP)" |
Denys Vlasenko | aeab42e | 2011-05-25 11:58:56 +0200 | [diff] [blame] | 33 | //usage: "\n -L Log locally and via network (default is network only if -R)" |
| 34 | //usage: ) |
Pere Orga | 5bc8c00 | 2011-04-11 03:29:49 +0200 | [diff] [blame] | 35 | //usage: IF_FEATURE_SYSLOGD_DUP( |
Denys Vlasenko | aeab42e | 2011-05-25 11:58:56 +0200 | [diff] [blame] | 36 | //usage: "\n -D Drop duplicates" |
| 37 | //usage: ) |
Pere Orga | 5bc8c00 | 2011-04-11 03:29:49 +0200 | [diff] [blame] | 38 | //usage: IF_FEATURE_IPC_SYSLOG( |
Pere Orga | 5bc8c00 | 2011-04-11 03:29:49 +0200 | [diff] [blame] | 39 | /* NB: -Csize shouldn't have space (because size is optional) */ |
Denys Vlasenko | aeab42e | 2011-05-25 11:58:56 +0200 | [diff] [blame] | 40 | //usage: "\n -C[size_kb] Log to shared mem buffer (use logread to read it)" |
| 41 | //usage: ) |
| 42 | //usage: IF_FEATURE_SYSLOGD_CFG( |
| 43 | //usage: "\n -f FILE Use FILE as config (default:/etc/syslog.conf)" |
| 44 | //usage: ) |
Pere Orga | 5bc8c00 | 2011-04-11 03:29:49 +0200 | [diff] [blame] | 45 | /* //usage: "\n -m MIN Minutes between MARK lines (default:20, 0=off)" */ |
Peter Korsgaard | cd776cf | 2013-01-06 00:07:19 +0100 | [diff] [blame] | 46 | //usage: IF_FEATURE_KMSG_SYSLOG( |
| 47 | //usage: "\n -K Log to kernel printk buffer (use dmesg to read it)" |
| 48 | //usage: ) |
Pere Orga | 5bc8c00 | 2011-04-11 03:29:49 +0200 | [diff] [blame] | 49 | //usage: |
| 50 | //usage:#define syslogd_example_usage |
| 51 | //usage: "$ syslogd -R masterlog:514\n" |
| 52 | //usage: "$ syslogd -R 192.168.1.1:601\n" |
| 53 | |
Denis Vlasenko | bd1aeeb | 2008-06-11 15:43:19 +0000 | [diff] [blame] | 54 | /* |
| 55 | * Done in syslogd_and_logger.c: |
Denis Vlasenko | b6adbf1 | 2007-05-26 19:00:18 +0000 | [diff] [blame] | 56 | #include "libbb.h" |
Bernhard Reutner-Fischer | f470196 | 2008-01-27 12:50:12 +0000 | [diff] [blame] | 57 | #define SYSLOG_NAMES |
| 58 | #define SYSLOG_NAMES_CONST |
| 59 | #include <syslog.h> |
Denis Vlasenko | bd1aeeb | 2008-06-11 15:43:19 +0000 | [diff] [blame] | 60 | */ |
Bernhard Reutner-Fischer | f470196 | 2008-01-27 12:50:12 +0000 | [diff] [blame] | 61 | |
Erik Andersen | 983b51b | 2000-04-04 18:14:25 +0000 | [diff] [blame] | 62 | #include <sys/un.h> |
Eric Andersen | ced2cef | 2000-07-20 23:41:24 +0000 | [diff] [blame] | 63 | #include <sys/uio.h> |
Eric Andersen | 3843e96 | 1999-11-25 07:30:46 +0000 | [diff] [blame] | 64 | |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 65 | #if ENABLE_FEATURE_REMOTE_LOG |
| 66 | #include <netinet/in.h> |
Denis Vlasenko | 4998c81 | 2007-02-14 20:51:46 +0000 | [diff] [blame] | 67 | #endif |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 68 | |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 69 | #if ENABLE_FEATURE_IPC_SYSLOG |
| 70 | #include <sys/ipc.h> |
| 71 | #include <sys/sem.h> |
| 72 | #include <sys/shm.h> |
| 73 | #endif |
Denis Vlasenko | 1decd0e | 2006-09-30 19:17:40 +0000 | [diff] [blame] | 74 | |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 75 | |
| 76 | #define DEBUG 0 |
| 77 | |
Denis Vlasenko | 4f93cde | 2007-03-20 20:03:03 +0000 | [diff] [blame] | 78 | /* MARK code is not very useful, is bloat, and broken: |
| 79 | * can deadlock if alarmed to make MARK while writing to IPC buffer |
| 80 | * (semaphores are down but do_mark routine tries to down them again) */ |
| 81 | #undef SYSLOGD_MARK |
| 82 | |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 83 | /* Write locking does not seem to be useful either */ |
| 84 | #undef SYSLOGD_WRLOCK |
| 85 | |
Denis Vlasenko | 4f2e8bc | 2008-01-03 12:12:27 +0000 | [diff] [blame] | 86 | enum { |
Janne Kiviluoto | c897dfe | 2010-03-31 15:58:58 +0200 | [diff] [blame] | 87 | MAX_READ = CONFIG_FEATURE_SYSLOGD_READ_BUFFER_SIZE, |
Denis Vlasenko | 4f2e8bc | 2008-01-03 12:12:27 +0000 | [diff] [blame] | 88 | DNS_WAIT_SEC = 2 * 60, |
| 89 | }; |
Denis Vlasenko | 4f93cde | 2007-03-20 20:03:03 +0000 | [diff] [blame] | 90 | |
| 91 | /* Semaphore operation structures */ |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 92 | struct shbuf_ds { |
Denis Vlasenko | 5f1b149 | 2007-08-12 21:33:06 +0000 | [diff] [blame] | 93 | int32_t size; /* size of data - 1 */ |
Denis Vlasenko | 4f93cde | 2007-03-20 20:03:03 +0000 | [diff] [blame] | 94 | int32_t tail; /* end of message list */ |
| 95 | char data[1]; /* data/messages */ |
| 96 | }; |
| 97 | |
Thomas Geulig | d2f7779 | 2010-02-28 13:01:59 +0100 | [diff] [blame] | 98 | #if ENABLE_FEATURE_REMOTE_LOG |
| 99 | typedef struct { |
| 100 | int remoteFD; |
| 101 | unsigned last_dns_resolve; |
| 102 | len_and_sockaddr *remoteAddr; |
| 103 | const char *remoteHostname; |
| 104 | } remoteHost_t; |
| 105 | #endif |
| 106 | |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 107 | typedef struct logFile_t { |
| 108 | const char *path; |
| 109 | int fd; |
| 110 | #if ENABLE_FEATURE_ROTATE_LOGFILE |
| 111 | unsigned size; |
| 112 | uint8_t isRegular; |
| 113 | #endif |
| 114 | } logFile_t; |
| 115 | |
| 116 | #if ENABLE_FEATURE_SYSLOGD_CFG |
| 117 | typedef struct logRule_t { |
| 118 | uint8_t enabled_facility_priomap[LOG_NFACILITIES]; |
| 119 | struct logFile_t *file; |
| 120 | struct logRule_t *next; |
| 121 | } logRule_t; |
| 122 | #endif |
| 123 | |
Denis Vlasenko | 4f93cde | 2007-03-20 20:03:03 +0000 | [diff] [blame] | 124 | /* Allows us to have smaller initializer. Ugly. */ |
| 125 | #define GLOBALS \ |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 126 | logFile_t logFile; \ |
Denis Vlasenko | 4f93cde | 2007-03-20 20:03:03 +0000 | [diff] [blame] | 127 | /* interval between marks in seconds */ \ |
| 128 | /*int markInterval;*/ \ |
| 129 | /* level of messages to be logged */ \ |
| 130 | int logLevel; \ |
Denis Vlasenko | 5e34ff2 | 2009-04-21 11:09:40 +0000 | [diff] [blame] | 131 | IF_FEATURE_ROTATE_LOGFILE( \ |
Denis Vlasenko | 4f93cde | 2007-03-20 20:03:03 +0000 | [diff] [blame] | 132 | /* max size of file before rotation */ \ |
| 133 | unsigned logFileSize; \ |
| 134 | /* number of rotated message files */ \ |
| 135 | unsigned logFileRotate; \ |
Denis Vlasenko | 4f93cde | 2007-03-20 20:03:03 +0000 | [diff] [blame] | 136 | ) \ |
Denis Vlasenko | 5e34ff2 | 2009-04-21 11:09:40 +0000 | [diff] [blame] | 137 | IF_FEATURE_IPC_SYSLOG( \ |
Denis Vlasenko | 4f93cde | 2007-03-20 20:03:03 +0000 | [diff] [blame] | 138 | int shmid; /* ipc shared memory id */ \ |
| 139 | int s_semid; /* ipc semaphore id */ \ |
| 140 | int shm_size; \ |
| 141 | struct sembuf SMwup[1]; \ |
| 142 | struct sembuf SMwdn[3]; \ |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 143 | ) \ |
| 144 | IF_FEATURE_SYSLOGD_CFG( \ |
| 145 | logRule_t *log_rules; \ |
Peter Korsgaard | cd776cf | 2013-01-06 00:07:19 +0100 | [diff] [blame] | 146 | ) \ |
| 147 | IF_FEATURE_KMSG_SYSLOG( \ |
| 148 | int kmsgfd; \ |
| 149 | int primask; \ |
Denis Vlasenko | 4f93cde | 2007-03-20 20:03:03 +0000 | [diff] [blame] | 150 | ) |
| 151 | |
| 152 | struct init_globals { |
| 153 | GLOBALS |
| 154 | }; |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 155 | |
| 156 | struct globals { |
Denis Vlasenko | 4f93cde | 2007-03-20 20:03:03 +0000 | [diff] [blame] | 157 | GLOBALS |
Denis Vlasenko | 4f2e8bc | 2008-01-03 12:12:27 +0000 | [diff] [blame] | 158 | |
| 159 | #if ENABLE_FEATURE_REMOTE_LOG |
Thomas Geulig | d2f7779 | 2010-02-28 13:01:59 +0100 | [diff] [blame] | 160 | llist_t *remoteHosts; |
Denis Vlasenko | 4f2e8bc | 2008-01-03 12:12:27 +0000 | [diff] [blame] | 161 | #endif |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 162 | #if ENABLE_FEATURE_IPC_SYSLOG |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 163 | struct shbuf_ds *shbuf; |
| 164 | #endif |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 165 | time_t last_log_time; |
Denis Vlasenko | 6f1713f | 2008-02-25 23:23:58 +0000 | [diff] [blame] | 166 | /* localhost's name. We print only first 64 chars */ |
| 167 | char *hostname; |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 168 | |
Denis Vlasenko | 4f93cde | 2007-03-20 20:03:03 +0000 | [diff] [blame] | 169 | /* We recv into recvbuf... */ |
Denis Vlasenko | be048f2 | 2008-02-26 20:13:52 +0000 | [diff] [blame] | 170 | char recvbuf[MAX_READ * (1 + ENABLE_FEATURE_SYSLOGD_DUP)]; |
Denis Vlasenko | 4f93cde | 2007-03-20 20:03:03 +0000 | [diff] [blame] | 171 | /* ...then copy to parsebuf, escaping control chars */ |
| 172 | /* (can grow x2 max) */ |
| 173 | char parsebuf[MAX_READ*2]; |
| 174 | /* ...then sprintf into printbuf, adding timestamp (15 chars), |
| 175 | * host (64), fac.prio (20) to the message */ |
| 176 | /* (growth by: 15 + 64 + 20 + delims = ~110) */ |
| 177 | char printbuf[MAX_READ*2 + 128]; |
| 178 | }; |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 179 | |
Denis Vlasenko | 4f93cde | 2007-03-20 20:03:03 +0000 | [diff] [blame] | 180 | static const struct init_globals init_data = { |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 181 | .logFile = { |
| 182 | .path = "/var/log/messages", |
| 183 | .fd = -1, |
| 184 | }, |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 185 | #ifdef SYSLOGD_MARK |
| 186 | .markInterval = 20 * 60, |
| 187 | #endif |
| 188 | .logLevel = 8, |
| 189 | #if ENABLE_FEATURE_ROTATE_LOGFILE |
| 190 | .logFileSize = 200 * 1024, |
| 191 | .logFileRotate = 1, |
| 192 | #endif |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 193 | #if ENABLE_FEATURE_IPC_SYSLOG |
| 194 | .shmid = -1, |
| 195 | .s_semid = -1, |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 196 | .shm_size = ((CONFIG_FEATURE_IPC_SYSLOG_BUFFER_SIZE)*1024), /* default shm size */ |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 197 | .SMwup = { {1, -1, IPC_NOWAIT} }, |
| 198 | .SMwdn = { {0, 0}, {1, 0}, {1, +1} }, |
| 199 | #endif |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 200 | }; |
| 201 | |
| 202 | #define G (*ptr_to_globals) |
Denis Vlasenko | 4f2e8bc | 2008-01-03 12:12:27 +0000 | [diff] [blame] | 203 | #define INIT_G() do { \ |
Denis Vlasenko | 574f2f4 | 2008-02-27 18:41:59 +0000 | [diff] [blame] | 204 | SET_PTR_TO_GLOBALS(memcpy(xzalloc(sizeof(G)), &init_data, sizeof(init_data))); \ |
Denis Vlasenko | 4f2e8bc | 2008-01-03 12:12:27 +0000 | [diff] [blame] | 205 | } while (0) |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 206 | |
| 207 | |
Denis Vlasenko | a0e2a0a | 2007-01-04 21:22:11 +0000 | [diff] [blame] | 208 | /* Options */ |
Denis Vlasenko | 14c1940 | 2006-09-30 19:20:00 +0000 | [diff] [blame] | 209 | enum { |
| 210 | OPTBIT_mark = 0, // -m |
| 211 | OPTBIT_nofork, // -n |
| 212 | OPTBIT_outfile, // -O |
| 213 | OPTBIT_loglevel, // -l |
| 214 | OPTBIT_small, // -S |
Denis Vlasenko | 5e34ff2 | 2009-04-21 11:09:40 +0000 | [diff] [blame] | 215 | IF_FEATURE_ROTATE_LOGFILE(OPTBIT_filesize ,) // -s |
| 216 | IF_FEATURE_ROTATE_LOGFILE(OPTBIT_rotatecnt ,) // -b |
| 217 | IF_FEATURE_REMOTE_LOG( OPTBIT_remotelog ,) // -R |
| 218 | IF_FEATURE_REMOTE_LOG( OPTBIT_locallog ,) // -L |
| 219 | IF_FEATURE_IPC_SYSLOG( OPTBIT_circularlog,) // -C |
| 220 | IF_FEATURE_SYSLOGD_DUP( OPTBIT_dup ,) // -D |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 221 | IF_FEATURE_SYSLOGD_CFG( OPTBIT_cfg ,) // -f |
Peter Korsgaard | cd776cf | 2013-01-06 00:07:19 +0100 | [diff] [blame] | 222 | IF_FEATURE_KMSG_SYSLOG( OPTBIT_kmsg ,) // -K |
Denis Vlasenko | 14c1940 | 2006-09-30 19:20:00 +0000 | [diff] [blame] | 223 | |
| 224 | OPT_mark = 1 << OPTBIT_mark , |
| 225 | OPT_nofork = 1 << OPTBIT_nofork , |
| 226 | OPT_outfile = 1 << OPTBIT_outfile , |
| 227 | OPT_loglevel = 1 << OPTBIT_loglevel, |
| 228 | OPT_small = 1 << OPTBIT_small , |
Denis Vlasenko | 5e34ff2 | 2009-04-21 11:09:40 +0000 | [diff] [blame] | 229 | OPT_filesize = IF_FEATURE_ROTATE_LOGFILE((1 << OPTBIT_filesize )) + 0, |
| 230 | OPT_rotatecnt = IF_FEATURE_ROTATE_LOGFILE((1 << OPTBIT_rotatecnt )) + 0, |
| 231 | OPT_remotelog = IF_FEATURE_REMOTE_LOG( (1 << OPTBIT_remotelog )) + 0, |
| 232 | OPT_locallog = IF_FEATURE_REMOTE_LOG( (1 << OPTBIT_locallog )) + 0, |
| 233 | OPT_circularlog = IF_FEATURE_IPC_SYSLOG( (1 << OPTBIT_circularlog)) + 0, |
| 234 | OPT_dup = IF_FEATURE_SYSLOGD_DUP( (1 << OPTBIT_dup )) + 0, |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 235 | OPT_cfg = IF_FEATURE_SYSLOGD_CFG( (1 << OPTBIT_cfg )) + 0, |
Peter Korsgaard | cd776cf | 2013-01-06 00:07:19 +0100 | [diff] [blame] | 236 | OPT_kmsg = IF_FEATURE_KMSG_SYSLOG( (1 << OPTBIT_kmsg )) + 0, |
| 237 | |
Denis Vlasenko | 14c1940 | 2006-09-30 19:20:00 +0000 | [diff] [blame] | 238 | }; |
| 239 | #define OPTION_STR "m:nO:l:S" \ |
Denis Vlasenko | 5e34ff2 | 2009-04-21 11:09:40 +0000 | [diff] [blame] | 240 | IF_FEATURE_ROTATE_LOGFILE("s:" ) \ |
| 241 | IF_FEATURE_ROTATE_LOGFILE("b:" ) \ |
| 242 | IF_FEATURE_REMOTE_LOG( "R:" ) \ |
| 243 | IF_FEATURE_REMOTE_LOG( "L" ) \ |
| 244 | IF_FEATURE_IPC_SYSLOG( "C::") \ |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 245 | IF_FEATURE_SYSLOGD_DUP( "D" ) \ |
Peter Korsgaard | cd776cf | 2013-01-06 00:07:19 +0100 | [diff] [blame] | 246 | IF_FEATURE_SYSLOGD_CFG( "f:" ) \ |
| 247 | IF_FEATURE_KMSG_SYSLOG( "K" ) |
Denis Vlasenko | 14c1940 | 2006-09-30 19:20:00 +0000 | [diff] [blame] | 248 | #define OPTION_DECL *opt_m, *opt_l \ |
Denis Vlasenko | 5e34ff2 | 2009-04-21 11:09:40 +0000 | [diff] [blame] | 249 | IF_FEATURE_ROTATE_LOGFILE(,*opt_s) \ |
| 250 | IF_FEATURE_ROTATE_LOGFILE(,*opt_b) \ |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 251 | IF_FEATURE_IPC_SYSLOG( ,*opt_C = NULL) \ |
| 252 | IF_FEATURE_SYSLOGD_CFG( ,*opt_f = NULL) |
| 253 | #define OPTION_PARAM &opt_m, &(G.logFile.path), &opt_l \ |
Denis Vlasenko | 5e34ff2 | 2009-04-21 11:09:40 +0000 | [diff] [blame] | 254 | IF_FEATURE_ROTATE_LOGFILE(,&opt_s) \ |
| 255 | IF_FEATURE_ROTATE_LOGFILE(,&opt_b) \ |
Denys Vlasenko | 6967578 | 2013-01-14 01:34:48 +0100 | [diff] [blame] | 256 | IF_FEATURE_REMOTE_LOG( ,&remoteAddrList) \ |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 257 | IF_FEATURE_IPC_SYSLOG( ,&opt_C) \ |
| 258 | IF_FEATURE_SYSLOGD_CFG( ,&opt_f) |
Eric Andersen | 871d93c | 2002-09-17 20:06:29 +0000 | [diff] [blame] | 259 | |
Eric Andersen | 871d93c | 2002-09-17 20:06:29 +0000 | [diff] [blame] | 260 | |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 261 | #if ENABLE_FEATURE_SYSLOGD_CFG |
| 262 | static const CODE* find_by_name(char *name, const CODE* c_set) |
| 263 | { |
| 264 | for (; c_set->c_name; c_set++) { |
| 265 | if (strcmp(name, c_set->c_name) == 0) |
| 266 | return c_set; |
| 267 | } |
| 268 | return NULL; |
| 269 | } |
| 270 | #endif |
| 271 | static const CODE* find_by_val(int val, const CODE* c_set) |
| 272 | { |
| 273 | for (; c_set->c_name; c_set++) { |
| 274 | if (c_set->c_val == val) |
| 275 | return c_set; |
| 276 | } |
| 277 | return NULL; |
| 278 | } |
| 279 | |
| 280 | #if ENABLE_FEATURE_SYSLOGD_CFG |
| 281 | static void parse_syslogdcfg(const char *file) |
| 282 | { |
| 283 | char *t; |
| 284 | logRule_t **pp_rule; |
| 285 | /* tok[0] set of selectors */ |
| 286 | /* tok[1] file name */ |
| 287 | /* tok[2] has to be NULL */ |
| 288 | char *tok[3]; |
| 289 | parser_t *parser; |
| 290 | |
| 291 | parser = config_open2(file ? file : "/etc/syslog.conf", |
Denys Vlasenko | 514cbfc | 2011-09-16 13:28:52 +0200 | [diff] [blame] | 292 | file ? xfopen_for_read : fopen_for_read); |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 293 | if (!parser) |
| 294 | /* didn't find default /etc/syslog.conf */ |
| 295 | /* proceed as if we built busybox without config support */ |
| 296 | return; |
| 297 | |
| 298 | /* use ptr to ptr to avoid checking whether head was initialized */ |
| 299 | pp_rule = &G.log_rules; |
| 300 | /* iterate through lines of config, skipping comments */ |
| 301 | while (config_read(parser, tok, 3, 2, "# \t", PARSE_NORMAL | PARSE_MIN_DIE)) { |
| 302 | char *cur_selector; |
| 303 | logRule_t *cur_rule; |
| 304 | |
| 305 | /* unexpected trailing token? */ |
Denys Vlasenko | 0288b27 | 2011-04-16 20:15:14 +0200 | [diff] [blame] | 306 | if (tok[2]) |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 307 | goto cfgerr; |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 308 | |
| 309 | cur_rule = *pp_rule = xzalloc(sizeof(*cur_rule)); |
| 310 | |
| 311 | cur_selector = tok[0]; |
| 312 | /* iterate through selectors: "kern.info;kern.!err;..." */ |
| 313 | do { |
| 314 | const CODE *code; |
| 315 | char *next_selector; |
| 316 | uint8_t negated_prio; /* "kern.!err" */ |
| 317 | uint8_t single_prio; /* "kern.=err" */ |
| 318 | uint32_t facmap; /* bitmap of enabled facilities */ |
| 319 | uint8_t primap; /* bitmap of enabled priorities */ |
| 320 | unsigned i; |
| 321 | |
| 322 | next_selector = strchr(cur_selector, ';'); |
| 323 | if (next_selector) |
| 324 | *next_selector++ = '\0'; |
| 325 | |
| 326 | t = strchr(cur_selector, '.'); |
Denys Vlasenko | 0288b27 | 2011-04-16 20:15:14 +0200 | [diff] [blame] | 327 | if (!t) |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 328 | goto cfgerr; |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 329 | *t++ = '\0'; /* separate facility from priority */ |
| 330 | |
| 331 | negated_prio = 0; |
| 332 | single_prio = 0; |
| 333 | if (*t == '!') { |
| 334 | negated_prio = 1; |
| 335 | ++t; |
| 336 | } |
| 337 | if (*t == '=') { |
| 338 | single_prio = 1; |
| 339 | ++t; |
| 340 | } |
| 341 | |
| 342 | /* parse priority */ |
| 343 | if (*t == '*') |
| 344 | primap = 0xff; /* all 8 log levels enabled */ |
| 345 | else { |
| 346 | uint8_t priority; |
| 347 | code = find_by_name(t, prioritynames); |
| 348 | if (!code) |
| 349 | goto cfgerr; |
| 350 | primap = 0; |
| 351 | priority = code->c_val; |
| 352 | if (priority == INTERNAL_NOPRI) { |
| 353 | /* ensure we take "enabled_facility_priomap[fac] &= 0" branch below */ |
| 354 | negated_prio = 1; |
| 355 | } else { |
| 356 | priority = 1 << priority; |
| 357 | do { |
| 358 | primap |= priority; |
| 359 | if (single_prio) |
| 360 | break; |
| 361 | priority >>= 1; |
| 362 | } while (priority); |
| 363 | if (negated_prio) |
| 364 | primap = ~primap; |
| 365 | } |
| 366 | } |
| 367 | |
| 368 | /* parse facility */ |
| 369 | if (*cur_selector == '*') |
| 370 | facmap = (1<<LOG_NFACILITIES) - 1; |
| 371 | else { |
| 372 | char *next_facility; |
| 373 | facmap = 0; |
| 374 | t = cur_selector; |
| 375 | /* iterate through facilities: "kern,daemon.<priospec>" */ |
| 376 | do { |
| 377 | next_facility = strchr(t, ','); |
| 378 | if (next_facility) |
| 379 | *next_facility++ = '\0'; |
| 380 | code = find_by_name(t, facilitynames); |
| 381 | if (!code) |
| 382 | goto cfgerr; |
| 383 | /* "mark" is not a real facility, skip it */ |
| 384 | if (code->c_val != INTERNAL_MARK) |
| 385 | facmap |= 1<<(LOG_FAC(code->c_val)); |
| 386 | t = next_facility; |
| 387 | } while (t); |
| 388 | } |
| 389 | |
| 390 | /* merge result with previous selectors */ |
| 391 | for (i = 0; i < LOG_NFACILITIES; ++i) { |
| 392 | if (!(facmap & (1<<i))) |
| 393 | continue; |
| 394 | if (negated_prio) |
| 395 | cur_rule->enabled_facility_priomap[i] &= primap; |
| 396 | else |
| 397 | cur_rule->enabled_facility_priomap[i] |= primap; |
| 398 | } |
| 399 | |
| 400 | cur_selector = next_selector; |
| 401 | } while (cur_selector); |
| 402 | |
Sergey Naumov | e9c8bed | 2011-04-16 19:36:15 +0200 | [diff] [blame] | 403 | /* check whether current file name was mentioned in previous rules or |
| 404 | * as global logfile (G.logFile). |
| 405 | */ |
| 406 | if (strcmp(G.logFile.path, tok[1]) == 0) { |
| 407 | cur_rule->file = &G.logFile; |
| 408 | goto found; |
| 409 | } |
| 410 | /* temporarily use cur_rule as iterator, but *pp_rule still points |
| 411 | * to currently processing rule entry. |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 412 | * NOTE: *pp_rule points to the current (and last in the list) rule. |
| 413 | */ |
| 414 | for (cur_rule = G.log_rules; cur_rule != *pp_rule; cur_rule = cur_rule->next) { |
| 415 | if (strcmp(cur_rule->file->path, tok[1]) == 0) { |
| 416 | /* found - reuse the same file structure */ |
| 417 | (*pp_rule)->file = cur_rule->file; |
| 418 | cur_rule = *pp_rule; |
| 419 | goto found; |
| 420 | } |
| 421 | } |
| 422 | cur_rule->file = xzalloc(sizeof(*cur_rule->file)); |
| 423 | cur_rule->file->fd = -1; |
| 424 | cur_rule->file->path = xstrdup(tok[1]); |
| 425 | found: |
| 426 | pp_rule = &cur_rule->next; |
| 427 | } |
| 428 | config_close(parser); |
| 429 | return; |
| 430 | |
| 431 | cfgerr: |
Denys Vlasenko | 81fa999 | 2013-01-20 16:05:41 +0100 | [diff] [blame] | 432 | bb_error_msg_and_die("error in '%s' at line %d", |
| 433 | file ? file : "/etc/syslog.conf", |
| 434 | parser->lineno); |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 435 | } |
| 436 | #endif |
| 437 | |
Mark Whitley | 6317c4b | 2001-03-12 22:51:50 +0000 | [diff] [blame] | 438 | /* circular buffer variables/structures */ |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 439 | #if ENABLE_FEATURE_IPC_SYSLOG |
| 440 | |
Eric Andersen | d4a5e25 | 2003-12-19 11:32:14 +0000 | [diff] [blame] | 441 | #if CONFIG_FEATURE_IPC_SYSLOG_BUFFER_SIZE < 4 |
| 442 | #error Sorry, you must set the syslogd buffer size to at least 4KB. |
| 443 | #error Please check CONFIG_FEATURE_IPC_SYSLOG_BUFFER_SIZE |
| 444 | #endif |
| 445 | |
Denis Vlasenko | bd1aeeb | 2008-06-11 15:43:19 +0000 | [diff] [blame] | 446 | /* our shared key (syslogd.c and logread.c must be in sync) */ |
| 447 | enum { KEY_ID = 0x414e4547 }; /* "GENA" */ |
Mark Whitley | 6317c4b | 2001-03-12 22:51:50 +0000 | [diff] [blame] | 448 | |
"Vladimir N. Oleynik" | e4baaa2 | 2005-09-22 12:59:26 +0000 | [diff] [blame] | 449 | static void ipcsyslog_cleanup(void) |
Glenn L McGrath | 912d8f4 | 2002-11-10 22:46:45 +0000 | [diff] [blame] | 450 | { |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 451 | if (G.shmid != -1) { |
| 452 | shmdt(G.shbuf); |
Glenn L McGrath | 912d8f4 | 2002-11-10 22:46:45 +0000 | [diff] [blame] | 453 | } |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 454 | if (G.shmid != -1) { |
| 455 | shmctl(G.shmid, IPC_RMID, NULL); |
Glenn L McGrath | 912d8f4 | 2002-11-10 22:46:45 +0000 | [diff] [blame] | 456 | } |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 457 | if (G.s_semid != -1) { |
| 458 | semctl(G.s_semid, 0, IPC_RMID, 0); |
Glenn L McGrath | 912d8f4 | 2002-11-10 22:46:45 +0000 | [diff] [blame] | 459 | } |
Mark Whitley | 6317c4b | 2001-03-12 22:51:50 +0000 | [diff] [blame] | 460 | } |
| 461 | |
"Vladimir N. Oleynik" | e4baaa2 | 2005-09-22 12:59:26 +0000 | [diff] [blame] | 462 | static void ipcsyslog_init(void) |
Glenn L McGrath | 912d8f4 | 2002-11-10 22:46:45 +0000 | [diff] [blame] | 463 | { |
Denis Vlasenko | a9b60e9 | 2007-01-04 17:59:59 +0000 | [diff] [blame] | 464 | if (DEBUG) |
Denis Vlasenko | bd1aeeb | 2008-06-11 15:43:19 +0000 | [diff] [blame] | 465 | printf("shmget(%x, %d,...)\n", (int)KEY_ID, G.shm_size); |
Denis Vlasenko | a9b60e9 | 2007-01-04 17:59:59 +0000 | [diff] [blame] | 466 | |
Denis Vlasenko | a1120a8 | 2007-08-14 10:27:56 +0000 | [diff] [blame] | 467 | G.shmid = shmget(KEY_ID, G.shm_size, IPC_CREAT | 0644); |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 468 | if (G.shmid == -1) { |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 469 | bb_perror_msg_and_die("shmget"); |
| 470 | } |
Mark Whitley | 6317c4b | 2001-03-12 22:51:50 +0000 | [diff] [blame] | 471 | |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 472 | G.shbuf = shmat(G.shmid, NULL, 0); |
Denis Vlasenko | 4e9ca75 | 2008-01-07 15:58:02 +0000 | [diff] [blame] | 473 | if (G.shbuf == (void*) -1L) { /* shmat has bizarre error return */ |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 474 | bb_perror_msg_and_die("shmat"); |
| 475 | } |
Mark Whitley | 6317c4b | 2001-03-12 22:51:50 +0000 | [diff] [blame] | 476 | |
Denis Vlasenko | 5f1b149 | 2007-08-12 21:33:06 +0000 | [diff] [blame] | 477 | memset(G.shbuf, 0, G.shm_size); |
| 478 | G.shbuf->size = G.shm_size - offsetof(struct shbuf_ds, data) - 1; |
| 479 | /*G.shbuf->tail = 0;*/ |
Mark Whitley | 6317c4b | 2001-03-12 22:51:50 +0000 | [diff] [blame] | 480 | |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 481 | /* we'll trust the OS to set initial semval to 0 (let's hope) */ |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 482 | G.s_semid = semget(KEY_ID, 2, IPC_CREAT | IPC_EXCL | 1023); |
| 483 | if (G.s_semid == -1) { |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 484 | if (errno == EEXIST) { |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 485 | G.s_semid = semget(KEY_ID, 2, 0); |
| 486 | if (G.s_semid != -1) |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 487 | return; |
Glenn L McGrath | 912d8f4 | 2002-11-10 22:46:45 +0000 | [diff] [blame] | 488 | } |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 489 | bb_perror_msg_and_die("semget"); |
Mark Whitley | 6317c4b | 2001-03-12 22:51:50 +0000 | [diff] [blame] | 490 | } |
| 491 | } |
| 492 | |
Denis Vlasenko | a0e2a0a | 2007-01-04 21:22:11 +0000 | [diff] [blame] | 493 | /* Write message to shared mem buffer */ |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 494 | static void log_to_shmem(const char *msg) |
Glenn L McGrath | 912d8f4 | 2002-11-10 22:46:45 +0000 | [diff] [blame] | 495 | { |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 496 | int old_tail, new_tail; |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 497 | int len; |
Mark Whitley | 6317c4b | 2001-03-12 22:51:50 +0000 | [diff] [blame] | 498 | |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 499 | if (semop(G.s_semid, G.SMwdn, 3) == -1) { |
Bernhard Reutner-Fischer | d591a36 | 2006-08-20 17:35:13 +0000 | [diff] [blame] | 500 | bb_perror_msg_and_die("SMwdn"); |
| 501 | } |
Mark Whitley | 6317c4b | 2001-03-12 22:51:50 +0000 | [diff] [blame] | 502 | |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 503 | /* Circular Buffer Algorithm: |
Mark Whitley | 6317c4b | 2001-03-12 22:51:50 +0000 | [diff] [blame] | 504 | * -------------------------- |
Denis Vlasenko | 150f402 | 2007-01-13 21:06:21 +0000 | [diff] [blame] | 505 | * tail == position where to store next syslog message. |
Denis Vlasenko | 5f1b149 | 2007-08-12 21:33:06 +0000 | [diff] [blame] | 506 | * tail's max value is (shbuf->size - 1) |
| 507 | * Last byte of buffer is never used and remains NUL. |
Mark Whitley | 6317c4b | 2001-03-12 22:51:50 +0000 | [diff] [blame] | 508 | */ |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 509 | len = strlen(msg) + 1; /* length with NUL included */ |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 510 | again: |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 511 | old_tail = G.shbuf->tail; |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 512 | new_tail = old_tail + len; |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 513 | if (new_tail < G.shbuf->size) { |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 514 | /* store message, set new tail */ |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 515 | memcpy(G.shbuf->data + old_tail, msg, len); |
| 516 | G.shbuf->tail = new_tail; |
Glenn L McGrath | 912d8f4 | 2002-11-10 22:46:45 +0000 | [diff] [blame] | 517 | } else { |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 518 | /* k == available buffer space ahead of old tail */ |
Denis Vlasenko | 5f1b149 | 2007-08-12 21:33:06 +0000 | [diff] [blame] | 519 | int k = G.shbuf->size - old_tail; |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 520 | /* copy what fits to the end of buffer, and repeat */ |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 521 | memcpy(G.shbuf->data + old_tail, msg, k); |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 522 | msg += k; |
| 523 | len -= k; |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 524 | G.shbuf->tail = 0; |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 525 | goto again; |
Mark Whitley | 6317c4b | 2001-03-12 22:51:50 +0000 | [diff] [blame] | 526 | } |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 527 | if (semop(G.s_semid, G.SMwup, 1) == -1) { |
Bernhard Reutner-Fischer | d591a36 | 2006-08-20 17:35:13 +0000 | [diff] [blame] | 528 | bb_perror_msg_and_die("SMwup"); |
| 529 | } |
Denis Vlasenko | a9b60e9 | 2007-01-04 17:59:59 +0000 | [diff] [blame] | 530 | if (DEBUG) |
Denis Vlasenko | 5f1b149 | 2007-08-12 21:33:06 +0000 | [diff] [blame] | 531 | printf("tail:%d\n", G.shbuf->tail); |
Mark Whitley | 6317c4b | 2001-03-12 22:51:50 +0000 | [diff] [blame] | 532 | } |
Rob Landley | 028ba28 | 2006-08-28 20:16:42 +0000 | [diff] [blame] | 533 | #else |
Peter Korsgaard | 9980707 | 2013-01-06 13:11:04 +0100 | [diff] [blame] | 534 | static void ipcsyslog_cleanup(void) {} |
| 535 | static void ipcsyslog_init(void) {} |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 536 | void log_to_shmem(const char *msg); |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 537 | #endif /* FEATURE_IPC_SYSLOG */ |
| 538 | |
Peter Korsgaard | cd776cf | 2013-01-06 00:07:19 +0100 | [diff] [blame] | 539 | #if ENABLE_FEATURE_KMSG_SYSLOG |
| 540 | static void kmsg_init(void) |
| 541 | { |
| 542 | G.kmsgfd = xopen("/dev/kmsg", O_WRONLY); |
| 543 | |
| 544 | /* |
| 545 | * kernel < 3.5 expects single char printk KERN_* priority prefix, |
| 546 | * from 3.5 onwards the full syslog facility/priority format is supported |
| 547 | */ |
| 548 | if (get_linux_version_code() < KERNEL_VERSION(3,5,0)) |
| 549 | G.primask = LOG_PRIMASK; |
| 550 | else |
| 551 | G.primask = -1; |
| 552 | } |
| 553 | |
| 554 | static void kmsg_cleanup(void) |
| 555 | { |
| 556 | if (ENABLE_FEATURE_CLEAN_UP) |
| 557 | close(G.kmsgfd); |
| 558 | } |
| 559 | |
| 560 | /* Write message to /dev/kmsg */ |
| 561 | static void log_to_kmsg(int pri, const char *msg) |
| 562 | { |
| 563 | /* |
| 564 | * kernel < 3.5 expects single char printk KERN_* priority prefix, |
| 565 | * from 3.5 onwards the full syslog facility/priority format is supported |
| 566 | */ |
| 567 | pri &= G.primask; |
| 568 | |
| 569 | write(G.kmsgfd, G.printbuf, sprintf(G.printbuf, "<%d>%s\n", pri, msg)); |
| 570 | } |
| 571 | #else |
Peter Korsgaard | 9980707 | 2013-01-06 13:11:04 +0100 | [diff] [blame] | 572 | static void kmsg_init(void) {} |
| 573 | static void kmsg_cleanup(void) {} |
| 574 | static void log_to_kmsg(int pri UNUSED_PARAM, const char *msg UNUSED_PARAM) {} |
Peter Korsgaard | cd776cf | 2013-01-06 00:07:19 +0100 | [diff] [blame] | 575 | #endif /* FEATURE_KMSG_SYSLOG */ |
| 576 | |
Erik Andersen | 983b51b | 2000-04-04 18:14:25 +0000 | [diff] [blame] | 577 | /* Print a message to the log file. */ |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 578 | static void log_locally(time_t now, char *msg, logFile_t *log_file) |
Eric Andersen | 3843e96 | 1999-11-25 07:30:46 +0000 | [diff] [blame] | 579 | { |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 580 | #ifdef SYSLOGD_WRLOCK |
Denis Vlasenko | b893497 | 2007-01-04 18:02:32 +0000 | [diff] [blame] | 581 | struct flock fl; |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 582 | #endif |
Denis Vlasenko | b893497 | 2007-01-04 18:02:32 +0000 | [diff] [blame] | 583 | int len = strlen(msg); |
Eric Andersen | 3843e96 | 1999-11-25 07:30:46 +0000 | [diff] [blame] | 584 | |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 585 | if (log_file->fd >= 0) { |
Denis Vlasenko | d9415d6 | 2009-03-02 14:26:28 +0000 | [diff] [blame] | 586 | /* Reopen log file every second. This allows admin |
| 587 | * to delete the file and not worry about restarting us. |
| 588 | * This costs almost nothing since it happens |
| 589 | * _at most_ once a second. |
| 590 | */ |
Denis Vlasenko | 4dada74 | 2008-01-03 12:13:42 +0000 | [diff] [blame] | 591 | if (!now) |
| 592 | now = time(NULL); |
| 593 | if (G.last_log_time != now) { |
Denis Vlasenko | d9415d6 | 2009-03-02 14:26:28 +0000 | [diff] [blame] | 594 | G.last_log_time = now; |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 595 | close(log_file->fd); |
Denis Vlasenko | b893497 | 2007-01-04 18:02:32 +0000 | [diff] [blame] | 596 | goto reopen; |
| 597 | } |
| 598 | } else { |
Denis Vlasenko | b893497 | 2007-01-04 18:02:32 +0000 | [diff] [blame] | 599 | reopen: |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 600 | log_file->fd = open(log_file->path, O_WRONLY | O_CREAT |
Denis Vlasenko | d9415d6 | 2009-03-02 14:26:28 +0000 | [diff] [blame] | 601 | | O_NOCTTY | O_APPEND | O_NONBLOCK, |
| 602 | 0666); |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 603 | if (log_file->fd < 0) { |
Denis Vlasenko | b893497 | 2007-01-04 18:02:32 +0000 | [diff] [blame] | 604 | /* cannot open logfile? - print to /dev/console then */ |
Denis Vlasenko | 70ab28f | 2007-11-18 05:43:05 +0000 | [diff] [blame] | 605 | int fd = device_open(DEV_CONSOLE, O_WRONLY | O_NOCTTY | O_NONBLOCK); |
Denis Vlasenko | b893497 | 2007-01-04 18:02:32 +0000 | [diff] [blame] | 606 | if (fd < 0) |
| 607 | fd = 2; /* then stderr, dammit */ |
| 608 | full_write(fd, msg, len); |
| 609 | if (fd != 2) |
| 610 | close(fd); |
| 611 | return; |
| 612 | } |
| 613 | #if ENABLE_FEATURE_ROTATE_LOGFILE |
Denis Vlasenko | bae7948 | 2007-01-09 23:42:43 +0000 | [diff] [blame] | 614 | { |
Denis Vlasenko | 5f1b149 | 2007-08-12 21:33:06 +0000 | [diff] [blame] | 615 | struct stat statf; |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 616 | log_file->isRegular = (fstat(log_file->fd, &statf) == 0 && S_ISREG(statf.st_mode)); |
Denis Vlasenko | 5f1b149 | 2007-08-12 21:33:06 +0000 | [diff] [blame] | 617 | /* bug (mostly harmless): can wrap around if file > 4gb */ |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 618 | log_file->size = statf.st_size; |
Denis Vlasenko | bae7948 | 2007-01-09 23:42:43 +0000 | [diff] [blame] | 619 | } |
Denis Vlasenko | b893497 | 2007-01-04 18:02:32 +0000 | [diff] [blame] | 620 | #endif |
| 621 | } |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 622 | |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 623 | #ifdef SYSLOGD_WRLOCK |
Denis Vlasenko | b893497 | 2007-01-04 18:02:32 +0000 | [diff] [blame] | 624 | fl.l_whence = SEEK_SET; |
| 625 | fl.l_start = 0; |
| 626 | fl.l_len = 1; |
| 627 | fl.l_type = F_WRLCK; |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 628 | fcntl(log_file->fd, F_SETLKW, &fl); |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 629 | #endif |
Bernhard Reutner-Fischer | d591a36 | 2006-08-20 17:35:13 +0000 | [diff] [blame] | 630 | |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 631 | #if ENABLE_FEATURE_ROTATE_LOGFILE |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 632 | if (G.logFileSize && log_file->isRegular && log_file->size > G.logFileSize) { |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 633 | if (G.logFileRotate) { /* always 0..99 */ |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 634 | int i = strlen(log_file->path) + 3 + 1; |
Denis Vlasenko | b893497 | 2007-01-04 18:02:32 +0000 | [diff] [blame] | 635 | char oldFile[i]; |
| 636 | char newFile[i]; |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 637 | i = G.logFileRotate - 1; |
Denis Vlasenko | b893497 | 2007-01-04 18:02:32 +0000 | [diff] [blame] | 638 | /* rename: f.8 -> f.9; f.7 -> f.8; ... */ |
| 639 | while (1) { |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 640 | sprintf(newFile, "%s.%d", log_file->path, i); |
Denis Vlasenko | b893497 | 2007-01-04 18:02:32 +0000 | [diff] [blame] | 641 | if (i == 0) break; |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 642 | sprintf(oldFile, "%s.%d", log_file->path, --i); |
Denis Vlasenko | 69dc325 | 2008-05-24 21:03:53 +0000 | [diff] [blame] | 643 | /* ignore errors - file might be missing */ |
| 644 | rename(oldFile, newFile); |
Eric Andersen | 29c77f7 | 2003-10-09 09:43:18 +0000 | [diff] [blame] | 645 | } |
Denis Vlasenko | b893497 | 2007-01-04 18:02:32 +0000 | [diff] [blame] | 646 | /* newFile == "f.0" now */ |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 647 | rename(log_file->path, newFile); |
Christian Engelmayer | 8de2e42 | 2011-10-28 18:12:42 +0200 | [diff] [blame] | 648 | /* Incredibly, if F and F.0 are hardlinks, POSIX |
| 649 | * _demands_ that rename returns 0 but does not |
| 650 | * remove F!!! |
| 651 | * (hardlinked F/F.0 pair was observed after |
| 652 | * power failure during rename()). |
| 653 | * Ensure old file is gone: |
| 654 | */ |
| 655 | unlink(log_file->path); |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 656 | #ifdef SYSLOGD_WRLOCK |
Denis Vlasenko | b893497 | 2007-01-04 18:02:32 +0000 | [diff] [blame] | 657 | fl.l_type = F_UNLCK; |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 658 | fcntl(log_file->fd, F_SETLKW, &fl); |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 659 | #endif |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 660 | close(log_file->fd); |
Denis Vlasenko | b893497 | 2007-01-04 18:02:32 +0000 | [diff] [blame] | 661 | goto reopen; |
Eric Andersen | 29c77f7 | 2003-10-09 09:43:18 +0000 | [diff] [blame] | 662 | } |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 663 | ftruncate(log_file->fd, 0); |
Eric Andersen | 3843e96 | 1999-11-25 07:30:46 +0000 | [diff] [blame] | 664 | } |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 665 | log_file->size += |
Denis Vlasenko | b893497 | 2007-01-04 18:02:32 +0000 | [diff] [blame] | 666 | #endif |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 667 | full_write(log_file->fd, msg, len); |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 668 | #ifdef SYSLOGD_WRLOCK |
Denis Vlasenko | b893497 | 2007-01-04 18:02:32 +0000 | [diff] [blame] | 669 | fl.l_type = F_UNLCK; |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 670 | fcntl(log_file->fd, F_SETLKW, &fl); |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 671 | #endif |
Eric Andersen | b99df0f | 1999-11-24 09:04:33 +0000 | [diff] [blame] | 672 | } |
| 673 | |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 674 | static void parse_fac_prio_20(int pri, char *res20) |
Eric Andersen | 3843e96 | 1999-11-25 07:30:46 +0000 | [diff] [blame] | 675 | { |
Denis Vlasenko | 3c8b5ba | 2007-06-04 18:23:59 +0000 | [diff] [blame] | 676 | const CODE *c_pri, *c_fac; |
Eric Andersen | b99df0f | 1999-11-24 09:04:33 +0000 | [diff] [blame] | 677 | |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 678 | c_fac = find_by_val(LOG_FAC(pri) << 3, facilitynames); |
| 679 | if (c_fac) { |
| 680 | c_pri = find_by_val(LOG_PRI(pri), prioritynames); |
| 681 | if (c_pri) { |
| 682 | snprintf(res20, 20, "%s.%s", c_fac->c_name, c_pri->c_name); |
| 683 | return; |
Glenn L McGrath | 912d8f4 | 2002-11-10 22:46:45 +0000 | [diff] [blame] | 684 | } |
Erik Andersen | 9ffdaa6 | 2000-02-11 21:55:04 +0000 | [diff] [blame] | 685 | } |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 686 | snprintf(res20, 20, "<%d>", pri); |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 687 | } |
Eric Andersen | 3843e96 | 1999-11-25 07:30:46 +0000 | [diff] [blame] | 688 | |
Denis Vlasenko | a0e2a0a | 2007-01-04 21:22:11 +0000 | [diff] [blame] | 689 | /* len parameter is used only for "is there a timestamp?" check. |
Denis Vlasenko | 018b155 | 2007-11-06 01:38:46 +0000 | [diff] [blame] | 690 | * NB: some callers cheat and supply len==0 when they know |
| 691 | * that there is no timestamp, short-circuiting the test. */ |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 692 | static void timestamp_and_log(int pri, char *msg, int len) |
| 693 | { |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 694 | char *timestamp; |
Denis Vlasenko | 4dada74 | 2008-01-03 12:13:42 +0000 | [diff] [blame] | 695 | time_t now; |
Denis Vlasenko | 4f2e8bc | 2008-01-03 12:12:27 +0000 | [diff] [blame] | 696 | |
Denis Vlasenko | 574c316 | 2009-04-22 02:53:02 +0000 | [diff] [blame] | 697 | /* Jan 18 00:11:22 msg... */ |
| 698 | /* 01234567890123456 */ |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 699 | if (len < 16 || msg[3] != ' ' || msg[6] != ' ' |
| 700 | || msg[9] != ':' || msg[12] != ':' || msg[15] != ' ' |
| 701 | ) { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 702 | time(&now); |
Denis Vlasenko | 4dada74 | 2008-01-03 12:13:42 +0000 | [diff] [blame] | 703 | timestamp = ctime(&now) + 4; /* skip day of week */ |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 704 | } else { |
Denis Vlasenko | 4dada74 | 2008-01-03 12:13:42 +0000 | [diff] [blame] | 705 | now = 0; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 706 | timestamp = msg; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 707 | msg += 16; |
| 708 | } |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 709 | timestamp[15] = '\0'; |
Eric Andersen | 3843e96 | 1999-11-25 07:30:46 +0000 | [diff] [blame] | 710 | |
Peter Korsgaard | 9980707 | 2013-01-06 13:11:04 +0100 | [diff] [blame] | 711 | if (option_mask32 & OPT_kmsg) { |
Peter Korsgaard | cd776cf | 2013-01-06 00:07:19 +0100 | [diff] [blame] | 712 | log_to_kmsg(pri, msg); |
| 713 | return; |
| 714 | } |
| 715 | |
Denis Vlasenko | 4f2e8bc | 2008-01-03 12:12:27 +0000 | [diff] [blame] | 716 | if (option_mask32 & OPT_small) |
| 717 | sprintf(G.printbuf, "%s %s\n", timestamp, msg); |
| 718 | else { |
| 719 | char res[20]; |
| 720 | parse_fac_prio_20(pri, res); |
Denis Vlasenko | 6f1713f | 2008-02-25 23:23:58 +0000 | [diff] [blame] | 721 | sprintf(G.printbuf, "%s %.64s %s %s\n", timestamp, G.hostname, res, msg); |
Eric Andersen | bf2b8ae | 2000-12-08 19:52:01 +0000 | [diff] [blame] | 722 | } |
Denis Vlasenko | 4dada74 | 2008-01-03 12:13:42 +0000 | [diff] [blame] | 723 | |
| 724 | /* Log message locally (to file or shared mem) */ |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 725 | #if ENABLE_FEATURE_SYSLOGD_CFG |
| 726 | { |
| 727 | bool match = 0; |
| 728 | logRule_t *rule; |
| 729 | uint8_t facility = LOG_FAC(pri); |
| 730 | uint8_t prio_bit = 1 << LOG_PRI(pri); |
| 731 | |
| 732 | for (rule = G.log_rules; rule; rule = rule->next) { |
| 733 | if (rule->enabled_facility_priomap[facility] & prio_bit) { |
| 734 | log_locally(now, G.printbuf, rule->file); |
| 735 | match = 1; |
| 736 | } |
| 737 | } |
| 738 | if (match) |
| 739 | return; |
| 740 | } |
| 741 | #endif |
| 742 | if (LOG_PRI(pri) < G.logLevel) { |
| 743 | #if ENABLE_FEATURE_IPC_SYSLOG |
| 744 | if ((option_mask32 & OPT_circularlog) && G.shbuf) { |
Denys Vlasenko | 514cbfc | 2011-09-16 13:28:52 +0200 | [diff] [blame] | 745 | log_to_shmem(G.printbuf); |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 746 | return; |
| 747 | } |
| 748 | #endif |
| 749 | log_locally(now, G.printbuf, &G.logFile); |
| 750 | } |
Denis Vlasenko | 4dada74 | 2008-01-03 12:13:42 +0000 | [diff] [blame] | 751 | } |
| 752 | |
| 753 | static void timestamp_and_log_internal(const char *msg) |
| 754 | { |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 755 | /* -L, or no -R */ |
Denis Vlasenko | 4dada74 | 2008-01-03 12:13:42 +0000 | [diff] [blame] | 756 | if (ENABLE_FEATURE_REMOTE_LOG && !(option_mask32 & OPT_locallog)) |
| 757 | return; |
| 758 | timestamp_and_log(LOG_SYSLOG | LOG_INFO, (char*)msg, 0); |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 759 | } |
Glenn L McGrath | 73ebb88 | 2004-09-14 18:12:13 +0000 | [diff] [blame] | 760 | |
Denis Vlasenko | 75cddd8 | 2008-02-13 09:19:14 +0000 | [diff] [blame] | 761 | /* tmpbuf[len] is a NUL byte (set by caller), but there can be other, |
| 762 | * embedded NULs. Split messages on each of these NULs, parse prio, |
| 763 | * escape control chars and log each locally. */ |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 764 | static void split_escape_and_log(char *tmpbuf, int len) |
| 765 | { |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 766 | char *p = tmpbuf; |
| 767 | |
| 768 | tmpbuf += len; |
| 769 | while (p < tmpbuf) { |
| 770 | char c; |
Denis Vlasenko | 4f93cde | 2007-03-20 20:03:03 +0000 | [diff] [blame] | 771 | char *q = G.parsebuf; |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 772 | int pri = (LOG_USER | LOG_NOTICE); |
| 773 | |
| 774 | if (*p == '<') { |
Denis Vlasenko | a0e2a0a | 2007-01-04 21:22:11 +0000 | [diff] [blame] | 775 | /* Parse the magic priority number */ |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 776 | pri = bb_strtou(p + 1, &p, 10); |
Denis Vlasenko | 018b155 | 2007-11-06 01:38:46 +0000 | [diff] [blame] | 777 | if (*p == '>') |
| 778 | p++; |
| 779 | if (pri & ~(LOG_FACMASK | LOG_PRIMASK)) |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 780 | pri = (LOG_USER | LOG_NOTICE); |
Denis Vlasenko | 1decd0e | 2006-09-30 19:17:40 +0000 | [diff] [blame] | 781 | } |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 782 | |
| 783 | while ((c = *p++)) { |
| 784 | if (c == '\n') |
| 785 | c = ' '; |
Denis Vlasenko | 2ee028d | 2007-06-21 13:44:53 +0000 | [diff] [blame] | 786 | if (!(c & ~0x1f) && c != '\t') { |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 787 | *q++ = '^'; |
| 788 | c += '@'; /* ^@, ^A, ^B... */ |
| 789 | } |
| 790 | *q++ = c; |
| 791 | } |
| 792 | *q = '\0'; |
Denis Vlasenko | 4f2e8bc | 2008-01-03 12:12:27 +0000 | [diff] [blame] | 793 | |
Denis Vlasenko | a0e2a0a | 2007-01-04 21:22:11 +0000 | [diff] [blame] | 794 | /* Now log it */ |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 795 | timestamp_and_log(pri, G.parsebuf, q - G.parsebuf); |
Eric Andersen | 7f94a5c | 2004-06-22 10:12:59 +0000 | [diff] [blame] | 796 | } |
Eric Andersen | 3843e96 | 1999-11-25 07:30:46 +0000 | [diff] [blame] | 797 | } |
| 798 | |
Denis Vlasenko | 4998c81 | 2007-02-14 20:51:46 +0000 | [diff] [blame] | 799 | #ifdef SYSLOGD_MARK |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 800 | static void do_mark(int sig) |
Eric Andersen | 3843e96 | 1999-11-25 07:30:46 +0000 | [diff] [blame] | 801 | { |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 802 | if (G.markInterval) { |
Denis Vlasenko | 4dada74 | 2008-01-03 12:13:42 +0000 | [diff] [blame] | 803 | timestamp_and_log_internal("-- MARK --"); |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 804 | alarm(G.markInterval); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 805 | } |
Eric Andersen | 3843e96 | 1999-11-25 07:30:46 +0000 | [diff] [blame] | 806 | } |
Denis Vlasenko | 4998c81 | 2007-02-14 20:51:46 +0000 | [diff] [blame] | 807 | #endif |
Eric Andersen | 3843e96 | 1999-11-25 07:30:46 +0000 | [diff] [blame] | 808 | |
Denis Vlasenko | d031b20 | 2007-11-10 01:28:19 +0000 | [diff] [blame] | 809 | /* Don't inline: prevent struct sockaddr_un to take up space on stack |
| 810 | * permanently */ |
| 811 | static NOINLINE int create_socket(void) |
Eric Andersen | 3843e96 | 1999-11-25 07:30:46 +0000 | [diff] [blame] | 812 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 813 | struct sockaddr_un sunx; |
Denis Vlasenko | d7ecd86 | 2007-09-07 13:53:32 +0000 | [diff] [blame] | 814 | int sock_fd; |
Denis Vlasenko | 6ca0444 | 2007-02-11 16:19:28 +0000 | [diff] [blame] | 815 | char *dev_log_name; |
Erik Andersen | f13df37 | 2000-04-18 23:51:51 +0000 | [diff] [blame] | 816 | |
Davide Cavalca | 9b3b979 | 2011-01-25 02:26:03 +0100 | [diff] [blame] | 817 | #if ENABLE_FEATURE_SYSTEMD |
| 818 | if (sd_listen_fds() == 1) |
| 819 | return SD_LISTEN_FDS_START; |
| 820 | #endif |
| 821 | |
Denis Vlasenko | d031b20 | 2007-11-10 01:28:19 +0000 | [diff] [blame] | 822 | memset(&sunx, 0, sizeof(sunx)); |
| 823 | sunx.sun_family = AF_UNIX; |
| 824 | |
| 825 | /* Unlink old /dev/log or object it points to. */ |
| 826 | /* (if it exists, bind will fail) */ |
| 827 | strcpy(sunx.sun_path, "/dev/log"); |
| 828 | dev_log_name = xmalloc_follow_symlinks("/dev/log"); |
| 829 | if (dev_log_name) { |
| 830 | safe_strncpy(sunx.sun_path, dev_log_name, sizeof(sunx.sun_path)); |
| 831 | free(dev_log_name); |
| 832 | } |
| 833 | unlink(sunx.sun_path); |
| 834 | |
| 835 | sock_fd = xsocket(AF_UNIX, SOCK_DGRAM, 0); |
| 836 | xbind(sock_fd, (struct sockaddr *) &sunx, sizeof(sunx)); |
| 837 | chmod("/dev/log", 0666); |
| 838 | |
| 839 | return sock_fd; |
| 840 | } |
| 841 | |
Denis Vlasenko | 4f2e8bc | 2008-01-03 12:12:27 +0000 | [diff] [blame] | 842 | #if ENABLE_FEATURE_REMOTE_LOG |
Thomas Geulig | d2f7779 | 2010-02-28 13:01:59 +0100 | [diff] [blame] | 843 | static int try_to_resolve_remote(remoteHost_t *rh) |
Denis Vlasenko | 4f2e8bc | 2008-01-03 12:12:27 +0000 | [diff] [blame] | 844 | { |
Thomas Geulig | d2f7779 | 2010-02-28 13:01:59 +0100 | [diff] [blame] | 845 | if (!rh->remoteAddr) { |
Denis Vlasenko | 4f2e8bc | 2008-01-03 12:12:27 +0000 | [diff] [blame] | 846 | unsigned now = monotonic_sec(); |
| 847 | |
| 848 | /* Don't resolve name too often - DNS timeouts can be big */ |
Thomas Geulig | d2f7779 | 2010-02-28 13:01:59 +0100 | [diff] [blame] | 849 | if ((now - rh->last_dns_resolve) < DNS_WAIT_SEC) |
Denis Vlasenko | 4f2e8bc | 2008-01-03 12:12:27 +0000 | [diff] [blame] | 850 | return -1; |
Thomas Geulig | d2f7779 | 2010-02-28 13:01:59 +0100 | [diff] [blame] | 851 | rh->last_dns_resolve = now; |
| 852 | rh->remoteAddr = host2sockaddr(rh->remoteHostname, 514); |
| 853 | if (!rh->remoteAddr) |
Denis Vlasenko | 4f2e8bc | 2008-01-03 12:12:27 +0000 | [diff] [blame] | 854 | return -1; |
| 855 | } |
Daniel Dickinson | e74d798 | 2010-08-03 04:26:20 +0200 | [diff] [blame] | 856 | return xsocket(rh->remoteAddr->u.sa.sa_family, SOCK_DGRAM, 0); |
Denis Vlasenko | 4f2e8bc | 2008-01-03 12:12:27 +0000 | [diff] [blame] | 857 | } |
| 858 | #endif |
| 859 | |
Denis Vlasenko | a60f84e | 2008-07-05 09:18:54 +0000 | [diff] [blame] | 860 | static void do_syslogd(void) NORETURN; |
Denis Vlasenko | d031b20 | 2007-11-10 01:28:19 +0000 | [diff] [blame] | 861 | static void do_syslogd(void) |
| 862 | { |
| 863 | int sock_fd; |
Thomas Geulig | d2f7779 | 2010-02-28 13:01:59 +0100 | [diff] [blame] | 864 | #if ENABLE_FEATURE_REMOTE_LOG |
| 865 | llist_t *item; |
| 866 | #endif |
Denis Vlasenko | be048f2 | 2008-02-26 20:13:52 +0000 | [diff] [blame] | 867 | #if ENABLE_FEATURE_SYSLOGD_DUP |
| 868 | int last_sz = -1; |
| 869 | char *last_buf; |
| 870 | char *recvbuf = G.recvbuf; |
| 871 | #else |
| 872 | #define recvbuf (G.recvbuf) |
| 873 | #endif |
Denis Vlasenko | d031b20 | 2007-11-10 01:28:19 +0000 | [diff] [blame] | 874 | |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 875 | /* Set up signal handlers (so that they interrupt read()) */ |
| 876 | signal_no_SA_RESTART_empty_mask(SIGTERM, record_signo); |
| 877 | signal_no_SA_RESTART_empty_mask(SIGINT, record_signo); |
| 878 | //signal_no_SA_RESTART_empty_mask(SIGQUIT, record_signo); |
Glenn L McGrath | 912d8f4 | 2002-11-10 22:46:45 +0000 | [diff] [blame] | 879 | signal(SIGHUP, SIG_IGN); |
Denis Vlasenko | 4998c81 | 2007-02-14 20:51:46 +0000 | [diff] [blame] | 880 | #ifdef SYSLOGD_MARK |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 881 | signal(SIGALRM, do_mark); |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 882 | alarm(G.markInterval); |
Denis Vlasenko | 4998c81 | 2007-02-14 20:51:46 +0000 | [diff] [blame] | 883 | #endif |
Denis Vlasenko | d031b20 | 2007-11-10 01:28:19 +0000 | [diff] [blame] | 884 | sock_fd = create_socket(); |
Eric Andersen | b99df0f | 1999-11-24 09:04:33 +0000 | [diff] [blame] | 885 | |
Peter Korsgaard | 9980707 | 2013-01-06 13:11:04 +0100 | [diff] [blame] | 886 | if (option_mask32 & OPT_circularlog) |
Glenn L McGrath | 912d8f4 | 2002-11-10 22:46:45 +0000 | [diff] [blame] | 887 | ipcsyslog_init(); |
Eric Andersen | ea90650 | 2001-04-05 20:55:17 +0000 | [diff] [blame] | 888 | |
Peter Korsgaard | 9980707 | 2013-01-06 13:11:04 +0100 | [diff] [blame] | 889 | if (option_mask32 & OPT_kmsg) |
Peter Korsgaard | cd776cf | 2013-01-06 00:07:19 +0100 | [diff] [blame] | 890 | kmsg_init(); |
| 891 | |
Denis Vlasenko | 4dada74 | 2008-01-03 12:13:42 +0000 | [diff] [blame] | 892 | timestamp_and_log_internal("syslogd started: BusyBox v" BB_VER); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 893 | |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 894 | while (!bb_got_signal) { |
Denis Vlasenko | 6b06cb8 | 2008-05-15 21:30:45 +0000 | [diff] [blame] | 895 | ssize_t sz; |
Denis Vlasenko | be048f2 | 2008-02-26 20:13:52 +0000 | [diff] [blame] | 896 | |
| 897 | #if ENABLE_FEATURE_SYSLOGD_DUP |
| 898 | last_buf = recvbuf; |
| 899 | if (recvbuf == G.recvbuf) |
| 900 | recvbuf = G.recvbuf + MAX_READ; |
| 901 | else |
| 902 | recvbuf = G.recvbuf; |
| 903 | #endif |
Denis Vlasenko | 018b155 | 2007-11-06 01:38:46 +0000 | [diff] [blame] | 904 | read_again: |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 905 | sz = read(sock_fd, recvbuf, MAX_READ - 1); |
| 906 | if (sz < 0) { |
| 907 | if (!bb_got_signal) |
| 908 | bb_perror_msg("read from /dev/log"); |
| 909 | break; |
| 910 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 911 | |
Denis Vlasenko | 75cddd8 | 2008-02-13 09:19:14 +0000 | [diff] [blame] | 912 | /* Drop trailing '\n' and NULs (typically there is one NUL) */ |
Denis Vlasenko | 018b155 | 2007-11-06 01:38:46 +0000 | [diff] [blame] | 913 | while (1) { |
| 914 | if (sz == 0) |
| 915 | goto read_again; |
Denis Vlasenko | cb12cb2 | 2007-11-06 11:34:03 +0000 | [diff] [blame] | 916 | /* man 3 syslog says: "A trailing newline is added when needed". |
| 917 | * However, neither glibc nor uclibc do this: |
| 918 | * syslog(prio, "test") sends "test\0" to /dev/log, |
Denis Vlasenko | 75cddd8 | 2008-02-13 09:19:14 +0000 | [diff] [blame] | 919 | * syslog(prio, "test\n") sends "test\n\0". |
Denis Vlasenko | cb12cb2 | 2007-11-06 11:34:03 +0000 | [diff] [blame] | 920 | * IOW: newline is passed verbatim! |
| 921 | * I take it to mean that it's syslogd's job |
Denis Vlasenko | 75cddd8 | 2008-02-13 09:19:14 +0000 | [diff] [blame] | 922 | * to make those look identical in the log files. */ |
Denis Vlasenko | be048f2 | 2008-02-26 20:13:52 +0000 | [diff] [blame] | 923 | if (recvbuf[sz-1] != '\0' && recvbuf[sz-1] != '\n') |
Denis Vlasenko | 018b155 | 2007-11-06 01:38:46 +0000 | [diff] [blame] | 924 | break; |
| 925 | sz--; |
| 926 | } |
Denis Vlasenko | be048f2 | 2008-02-26 20:13:52 +0000 | [diff] [blame] | 927 | #if ENABLE_FEATURE_SYSLOGD_DUP |
| 928 | if ((option_mask32 & OPT_dup) && (sz == last_sz)) |
| 929 | if (memcmp(last_buf, recvbuf, sz) == 0) |
| 930 | continue; |
| 931 | last_sz = sz; |
| 932 | #endif |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 933 | #if ENABLE_FEATURE_REMOTE_LOG |
Thomas Geulig | d2f7779 | 2010-02-28 13:01:59 +0100 | [diff] [blame] | 934 | /* Stock syslogd sends it '\n'-terminated |
| 935 | * over network, mimic that */ |
| 936 | recvbuf[sz] = '\n'; |
| 937 | |
Denis Vlasenko | d7ecd86 | 2007-09-07 13:53:32 +0000 | [diff] [blame] | 938 | /* We are not modifying log messages in any way before send */ |
| 939 | /* Remote site cannot trust _us_ anyway and need to do validation again */ |
Thomas Geulig | d2f7779 | 2010-02-28 13:01:59 +0100 | [diff] [blame] | 940 | for (item = G.remoteHosts; item != NULL; item = item->link) { |
| 941 | remoteHost_t *rh = (remoteHost_t *)item->data; |
| 942 | |
| 943 | if (rh->remoteFD == -1) { |
| 944 | rh->remoteFD = try_to_resolve_remote(rh); |
| 945 | if (rh->remoteFD == -1) |
| 946 | continue; |
Glenn L McGrath | 912d8f4 | 2002-11-10 22:46:45 +0000 | [diff] [blame] | 947 | } |
Daniel Dickinson | e74d798 | 2010-08-03 04:26:20 +0200 | [diff] [blame] | 948 | |
| 949 | /* Send message to remote logger. |
| 950 | * On some errors, close and set remoteFD to -1 |
| 951 | * so that DNS resolution is retried. |
| 952 | */ |
| 953 | if (sendto(rh->remoteFD, recvbuf, sz+1, |
| 954 | MSG_DONTWAIT | MSG_NOSIGNAL, |
| 955 | &(rh->remoteAddr->u.sa), rh->remoteAddr->len) == -1 |
| 956 | ) { |
| 957 | switch (errno) { |
| 958 | case ECONNRESET: |
| 959 | case ENOTCONN: /* paranoia */ |
| 960 | case EPIPE: |
| 961 | close(rh->remoteFD); |
| 962 | rh->remoteFD = -1; |
| 963 | free(rh->remoteAddr); |
| 964 | rh->remoteAddr = NULL; |
| 965 | } |
| 966 | } |
Denis Vlasenko | 87f3b26 | 2007-09-07 13:43:28 +0000 | [diff] [blame] | 967 | } |
Denis Vlasenko | d7ecd86 | 2007-09-07 13:53:32 +0000 | [diff] [blame] | 968 | #endif |
Denis Vlasenko | 75cddd8 | 2008-02-13 09:19:14 +0000 | [diff] [blame] | 969 | if (!ENABLE_FEATURE_REMOTE_LOG || (option_mask32 & OPT_locallog)) { |
Denis Vlasenko | be048f2 | 2008-02-26 20:13:52 +0000 | [diff] [blame] | 970 | recvbuf[sz] = '\0'; /* ensure it *is* NUL terminated */ |
| 971 | split_escape_and_log(recvbuf, sz); |
Denis Vlasenko | 75cddd8 | 2008-02-13 09:19:14 +0000 | [diff] [blame] | 972 | } |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 973 | } /* while (!bb_got_signal) */ |
| 974 | |
| 975 | timestamp_and_log_internal("syslogd exiting"); |
| 976 | puts("syslogd exiting"); |
Anthony G. Basile | 12677ac | 2012-12-10 14:49:39 -0500 | [diff] [blame] | 977 | remove_pidfile(CONFIG_PID_FILE_PATH "/syslogd.pid"); |
Peter Korsgaard | 9980707 | 2013-01-06 13:11:04 +0100 | [diff] [blame] | 978 | ipcsyslog_cleanup(); |
| 979 | if (option_mask32 & OPT_kmsg) |
Peter Korsgaard | cd776cf | 2013-01-06 00:07:19 +0100 | [diff] [blame] | 980 | kmsg_cleanup(); |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 981 | kill_myself_with_sig(bb_got_signal); |
Denis Vlasenko | bd1aeeb | 2008-06-11 15:43:19 +0000 | [diff] [blame] | 982 | #undef recvbuf |
Eric Andersen | b99df0f | 1999-11-24 09:04:33 +0000 | [diff] [blame] | 983 | } |
| 984 | |
Denis Vlasenko | 9b49a5e | 2007-10-11 10:05:36 +0000 | [diff] [blame] | 985 | int syslogd_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
Denis Vlasenko | a60f84e | 2008-07-05 09:18:54 +0000 | [diff] [blame] | 986 | int syslogd_main(int argc UNUSED_PARAM, char **argv) |
Eric Andersen | 3843e96 | 1999-11-25 07:30:46 +0000 | [diff] [blame] | 987 | { |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 988 | int opts; |
Thomas Geulig | d2f7779 | 2010-02-28 13:01:59 +0100 | [diff] [blame] | 989 | char OPTION_DECL; |
Denis Vlasenko | 4f2e8bc | 2008-01-03 12:12:27 +0000 | [diff] [blame] | 990 | #if ENABLE_FEATURE_REMOTE_LOG |
Thomas Geulig | d2f7779 | 2010-02-28 13:01:59 +0100 | [diff] [blame] | 991 | llist_t *remoteAddrList = NULL; |
Denis Vlasenko | 4f2e8bc | 2008-01-03 12:12:27 +0000 | [diff] [blame] | 992 | #endif |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 993 | |
Thomas Geulig | d2f7779 | 2010-02-28 13:01:59 +0100 | [diff] [blame] | 994 | INIT_G(); |
| 995 | |
| 996 | /* No non-option params, -R can occur multiple times */ |
| 997 | opt_complementary = "=0" IF_FEATURE_REMOTE_LOG(":R::"); |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 998 | opts = getopt32(argv, OPTION_STR, OPTION_PARAM); |
Thomas Geulig | d2f7779 | 2010-02-28 13:01:59 +0100 | [diff] [blame] | 999 | #if ENABLE_FEATURE_REMOTE_LOG |
| 1000 | while (remoteAddrList) { |
| 1001 | remoteHost_t *rh = xzalloc(sizeof(*rh)); |
| 1002 | rh->remoteHostname = llist_pop(&remoteAddrList); |
| 1003 | rh->remoteFD = -1; |
| 1004 | rh->last_dns_resolve = monotonic_sec() - DNS_WAIT_SEC - 1; |
| 1005 | llist_add_to(&G.remoteHosts, rh); |
| 1006 | } |
| 1007 | #endif |
| 1008 | |
Denis Vlasenko | 4998c81 | 2007-02-14 20:51:46 +0000 | [diff] [blame] | 1009 | #ifdef SYSLOGD_MARK |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 1010 | if (opts & OPT_mark) // -m |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 1011 | G.markInterval = xatou_range(opt_m, 0, INT_MAX/60) * 60; |
Denis Vlasenko | 4998c81 | 2007-02-14 20:51:46 +0000 | [diff] [blame] | 1012 | #endif |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 1013 | //if (opts & OPT_nofork) // -n |
| 1014 | //if (opts & OPT_outfile) // -O |
| 1015 | if (opts & OPT_loglevel) // -l |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 1016 | G.logLevel = xatou_range(opt_l, 1, 8); |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 1017 | //if (opts & OPT_small) // -S |
Denis Vlasenko | 14c1940 | 2006-09-30 19:20:00 +0000 | [diff] [blame] | 1018 | #if ENABLE_FEATURE_ROTATE_LOGFILE |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 1019 | if (opts & OPT_filesize) // -s |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 1020 | G.logFileSize = xatou_range(opt_s, 0, INT_MAX/1024) * 1024; |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 1021 | if (opts & OPT_rotatecnt) // -b |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 1022 | G.logFileRotate = xatou_range(opt_b, 0, 99); |
Denis Vlasenko | 14c1940 | 2006-09-30 19:20:00 +0000 | [diff] [blame] | 1023 | #endif |
Denis Vlasenko | 14c1940 | 2006-09-30 19:20:00 +0000 | [diff] [blame] | 1024 | #if ENABLE_FEATURE_IPC_SYSLOG |
Denis Vlasenko | 218f2f4 | 2007-01-24 22:02:01 +0000 | [diff] [blame] | 1025 | if (opt_C) // -Cn |
Denis Vlasenko | 5e892ba | 2007-03-15 19:50:46 +0000 | [diff] [blame] | 1026 | G.shm_size = xatoul_range(opt_C, 4, INT_MAX/1024) * 1024; |
Denis Vlasenko | 14c1940 | 2006-09-30 19:20:00 +0000 | [diff] [blame] | 1027 | #endif |
Eric Andersen | 4ed1782 | 2000-12-11 19:28:29 +0000 | [diff] [blame] | 1028 | /* If they have not specified remote logging, then log locally */ |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 1029 | if (ENABLE_FEATURE_REMOTE_LOG && !(opts & OPT_remotelog)) // -R |
Denis Vlasenko | c12f530 | 2006-10-06 09:49:47 +0000 | [diff] [blame] | 1030 | option_mask32 |= OPT_locallog; |
Sergey Naumov | 73ef15c | 2011-04-10 07:34:27 +0200 | [diff] [blame] | 1031 | #if ENABLE_FEATURE_SYSLOGD_CFG |
| 1032 | parse_syslogdcfg(opt_f); |
| 1033 | #endif |
Mark Whitley | 6317c4b | 2001-03-12 22:51:50 +0000 | [diff] [blame] | 1034 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1035 | /* Store away localhost's name before the fork */ |
Denis Vlasenko | 6f1713f | 2008-02-25 23:23:58 +0000 | [diff] [blame] | 1036 | G.hostname = safe_gethostname(); |
| 1037 | *strchrnul(G.hostname, '.') = '\0'; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1038 | |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 1039 | if (!(opts & OPT_nofork)) { |
Denis Vlasenko | 5a14202 | 2007-03-26 13:20:54 +0000 | [diff] [blame] | 1040 | bb_daemonize_or_rexec(DAEMON_CHDIR_ROOT, argv); |
Eric Andersen | 35e643b | 2003-07-28 07:40:39 +0000 | [diff] [blame] | 1041 | } |
Anthony G. Basile | 12677ac | 2012-12-10 14:49:39 -0500 | [diff] [blame] | 1042 | |
Denys Vlasenko | a425242 | 2010-01-29 16:44:48 +0100 | [diff] [blame] | 1043 | //umask(0); - why?? |
Anthony G. Basile | 12677ac | 2012-12-10 14:49:39 -0500 | [diff] [blame] | 1044 | write_pidfile(CONFIG_PID_FILE_PATH "/syslogd.pid"); |
| 1045 | |
Denis Vlasenko | ceab870 | 2007-01-04 17:57:54 +0000 | [diff] [blame] | 1046 | do_syslogd(); |
Denis Vlasenko | 8a820b2 | 2007-01-06 22:08:53 +0000 | [diff] [blame] | 1047 | /* return EXIT_SUCCESS; */ |
Eric Andersen | 3843e96 | 1999-11-25 07:30:46 +0000 | [diff] [blame] | 1048 | } |
Denis Vlasenko | bd1aeeb | 2008-06-11 15:43:19 +0000 | [diff] [blame] | 1049 | |
| 1050 | /* Clean up. Needed because we are included from syslogd_and_logger.c */ |
Denis Vlasenko | 0d94820 | 2008-12-09 22:53:31 +0000 | [diff] [blame] | 1051 | #undef DEBUG |
| 1052 | #undef SYSLOGD_MARK |
| 1053 | #undef SYSLOGD_WRLOCK |
Denis Vlasenko | bd1aeeb | 2008-06-11 15:43:19 +0000 | [diff] [blame] | 1054 | #undef G |
| 1055 | #undef GLOBALS |
| 1056 | #undef INIT_G |
| 1057 | #undef OPTION_STR |
| 1058 | #undef OPTION_DECL |
| 1059 | #undef OPTION_PARAM |