Commit | Line | Data |
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8c5eec2f | 1 | /* |
e15840af KB |
2 | * Copyright (c) 1983, 1988 Regents of the University of California. |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms are permitted | |
b8c620d6 KB |
6 | * provided that the above copyright notice and this paragraph are |
7 | * duplicated in all such forms and that any documentation, | |
8 | * advertising materials, and other materials related to such | |
9 | * distribution and use acknowledge that the software was developed | |
10 | * by the University of California, Berkeley. The name of the | |
11 | * University may not be used to endorse or promote products derived | |
12 | * from this software without specific prior written permission. | |
13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
8c5eec2f DF |
16 | */ |
17 | ||
18 | #ifndef lint | |
19 | char copyright[] = | |
e15840af | 20 | "@(#) Copyright (c) 1983, 1988 Regents of the University of California.\n\ |
8c5eec2f | 21 | All rights reserved.\n"; |
e15840af | 22 | #endif /* not lint */ |
8c5eec2f | 23 | |
e677da31 | 24 | #ifndef lint |
7abf8d65 | 25 | static char sccsid[] = "@(#)syslogd.c 5.32 (Berkeley) %G%"; |
e15840af | 26 | #endif /* not lint */ |
e677da31 RC |
27 | |
28 | /* | |
29 | * syslogd -- log system messages | |
30 | * | |
31 | * This program implements a system log. It takes a series of lines. | |
32 | * Each line may have a priority, signified as "<n>" as | |
a49a6aba RC |
33 | * the first characters of the line. If this is |
34 | * not present, a default priority is used. | |
e677da31 RC |
35 | * |
36 | * To kill syslogd, send a signal 15 (terminate). A signal 1 (hup) will | |
37 | * cause it to reread its configuration file. | |
38 | * | |
39 | * Defined Constants: | |
40 | * | |
e677da31 | 41 | * MAXLINE -- the maximimum line length that can be handled. |
a49a6aba RC |
42 | * DEFUPRI -- the default priority for user messages |
43 | * DEFSPRI -- the default priority for kernel messages | |
ada83039 RC |
44 | * |
45 | * Author: Eric Allman | |
a49a6aba | 46 | * extensive changes by Ralph Campbell |
61a57de9 | 47 | * more extensive changes by Eric Allman (again) |
e677da31 RC |
48 | */ |
49 | ||
a49a6aba | 50 | #define MAXLINE 1024 /* maximum line length */ |
35c3f83c | 51 | #define MAXSVLINE 120 /* maximum saved line length */ |
64b300b4 EA |
52 | #define DEFUPRI (LOG_USER|LOG_NOTICE) |
53 | #define DEFSPRI (LOG_KERN|LOG_CRIT) | |
92e73e63 | 54 | #define TIMERINTVL 30 /* interval for checking flush, mark */ |
e677da31 | 55 | |
2f6a4049 | 56 | #include <sys/param.h> |
61b108ae | 57 | #include <sys/syslog.h> |
92e73e63 | 58 | #include <sys/errno.h> |
e677da31 RC |
59 | #include <sys/ioctl.h> |
60 | #include <sys/stat.h> | |
84555b38 | 61 | #include <sys/wait.h> |
e677da31 RC |
62 | #include <sys/socket.h> |
63 | #include <sys/file.h> | |
63cb489e | 64 | #include <sys/msgbuf.h> |
ada83039 | 65 | #include <sys/uio.h> |
e677da31 | 66 | #include <sys/un.h> |
64b300b4 EA |
67 | #include <sys/time.h> |
68 | #include <sys/resource.h> | |
92e73e63 | 69 | #include <sys/signal.h> |
a24c481a | 70 | |
e677da31 RC |
71 | #include <netinet/in.h> |
72 | #include <netdb.h> | |
73 | ||
61b108ae KB |
74 | #include <utmp.h> |
75 | #include <setjmp.h> | |
76 | #include <stdio.h> | |
77 | #include <ctype.h> | |
78 | #include <strings.h> | |
79 | #include "pathnames.h" | |
80 | ||
81 | char *LogName = _PATH_LOG; | |
82 | char *ConfFile = _PATH_LOGCONF; | |
83 | char *PidFile = _PATH_LOGPID; | |
84 | char ctty[] = _PATH_CONSOLE; | |
e677da31 | 85 | |
64b300b4 EA |
86 | #define FDMASK(fd) (1 << (fd)) |
87 | ||
e677da31 RC |
88 | #define dprintf if (Debug) printf |
89 | ||
64b300b4 EA |
90 | #define UNAMESZ 8 /* length of a login name */ |
91 | #define MAXUNAMES 20 /* maximum number of user names */ | |
92 | #define MAXFNAME 200 /* max file pathname length */ | |
e677da31 | 93 | |
64b300b4 | 94 | #define NOPRI 0x10 /* the "no priority" priority */ |
35c3f83c | 95 | #define LOG_MARK LOG_MAKEPRI(LOG_NFACILITIES, 0) /* mark "facility" */ |
a49a6aba | 96 | |
8a7154b1 RC |
97 | /* |
98 | * Flags to logmsg(). | |
99 | */ | |
64b300b4 EA |
100 | |
101 | #define IGN_CONS 0x001 /* don't print on console */ | |
102 | #define SYNC_FILE 0x002 /* do fsync on file after printing */ | |
92e73e63 MK |
103 | #define ADDDATE 0x004 /* add a date to the message */ |
104 | #define MARK 0x008 /* this message is a mark */ | |
8a7154b1 | 105 | |
e677da31 RC |
106 | /* |
107 | * This structure represents the files that will have log | |
108 | * copies printed. | |
109 | */ | |
110 | ||
111 | struct filed { | |
92e73e63 | 112 | struct filed *f_next; /* next in linked list */ |
64b300b4 EA |
113 | short f_type; /* entry type, see below */ |
114 | short f_file; /* file descriptor */ | |
ad58e75e | 115 | time_t f_time; /* time this was last written */ |
c16a39e2 | 116 | u_char f_pmask[LOG_NFACILITIES+1]; /* priority mask */ |
64b300b4 | 117 | union { |
486e5830 | 118 | char f_uname[MAXUNAMES][UNAMESZ+1]; |
c16a39e2 | 119 | struct { |
74440133 | 120 | char f_hname[MAXHOSTNAMELEN+1]; |
64b300b4 | 121 | struct sockaddr_in f_addr; |
c16a39e2 | 122 | } f_forw; /* forwarding address */ |
64b300b4 | 123 | char f_fname[MAXFNAME]; |
c16a39e2 | 124 | } f_un; |
92e73e63 MK |
125 | char f_prevline[MAXSVLINE]; /* last message logged */ |
126 | char f_lasttime[16]; /* time of last occurrence */ | |
127 | char f_prevhost[MAXHOSTNAMELEN+1]; /* host from which recd. */ | |
128 | int f_prevpri; /* pri of f_prevline */ | |
129 | int f_prevlen; /* length of f_prevline */ | |
130 | int f_prevcount; /* repetition cnt of prevline */ | |
131 | int f_repeatcount; /* number of "repeated" msgs */ | |
e677da31 RC |
132 | }; |
133 | ||
92e73e63 MK |
134 | /* |
135 | * Intervals at which we flush out "message repeated" messages, | |
136 | * in seconds after previous message is logged. After each flush, | |
137 | * we move to the next interval until we reach the largest. | |
138 | */ | |
139 | int repeatinterval[] = { 30, 120, 600 }; /* # of secs before flush */ | |
140 | #define MAXREPEAT ((sizeof(repeatinterval) / sizeof(repeatinterval[0])) - 1) | |
141 | #define REPEATTIME(f) ((f)->f_time + repeatinterval[(f)->f_repeatcount]) | |
142 | #define BACKOFF(f) { if (++(f)->f_repeatcount > MAXREPEAT) \ | |
143 | (f)->f_repeatcount = MAXREPEAT; \ | |
144 | } | |
145 | ||
64b300b4 EA |
146 | /* values for f_type */ |
147 | #define F_UNUSED 0 /* unused entry */ | |
148 | #define F_FILE 1 /* regular file */ | |
149 | #define F_TTY 2 /* terminal */ | |
150 | #define F_CONSOLE 3 /* console terminal */ | |
151 | #define F_FORW 4 /* remote machine */ | |
152 | #define F_USERS 5 /* list of users */ | |
153 | #define F_WALL 6 /* everyone logged on */ | |
154 | ||
155 | char *TypeNames[7] = { | |
156 | "UNUSED", "FILE", "TTY", "CONSOLE", | |
157 | "FORW", "USERS", "WALL" | |
e677da31 RC |
158 | }; |
159 | ||
92e73e63 MK |
160 | struct filed *Files; |
161 | struct filed consfile; | |
e677da31 RC |
162 | |
163 | int Debug; /* debug flag */ | |
74440133 | 164 | char LocalHostName[MAXHOSTNAMELEN+1]; /* our hostname */ |
ad58e75e | 165 | char *LocalDomain; /* our local domain name */ |
64b300b4 | 166 | int InetInuse = 0; /* non-zero if INET sockets are being used */ |
92e73e63 | 167 | int finet; /* Internet datagram socket */ |
64b300b4 | 168 | int LogPort; /* port number for INET connections */ |
64b300b4 | 169 | int Initialized = 0; /* set when we have initialized ourselves */ |
92e73e63 | 170 | int MarkInterval = 20 * 60; /* interval between marks in seconds */ |
ad58e75e | 171 | int MarkSeq = 0; /* mark sequence number */ |
e677da31 RC |
172 | |
173 | extern int errno, sys_nerr; | |
174 | extern char *sys_errlist[]; | |
92e73e63 | 175 | extern char *ctime(), *index(), *calloc(); |
e677da31 RC |
176 | |
177 | main(argc, argv) | |
178 | int argc; | |
179 | char **argv; | |
180 | { | |
181 | register int i; | |
182 | register char *p; | |
92e73e63 | 183 | int funix, inetm, fklog, klogm, len; |
0d20624e | 184 | struct sockaddr_un sunx, fromunix; |
e677da31 RC |
185 | struct sockaddr_in sin, frominet; |
186 | FILE *fp; | |
953d8fe3 | 187 | int ch; |
63cb489e | 188 | char line[MSG_BSIZE + 1]; |
953d8fe3 KB |
189 | extern int optind, die(), domark(), reapchild(); |
190 | extern char *optarg; | |
a49a6aba | 191 | |
953d8fe3 KB |
192 | while ((ch = getopt(argc, argv, "df:m:p:")) != EOF) |
193 | switch((char)ch) { | |
a49a6aba RC |
194 | case 'd': /* debug */ |
195 | Debug++; | |
196 | break; | |
953d8fe3 KB |
197 | case 'f': /* configuration file */ |
198 | ConfFile = optarg; | |
a49a6aba | 199 | break; |
ad58e75e | 200 | case 'm': /* mark interval */ |
953d8fe3 | 201 | MarkInterval = atoi(optarg) * 60; |
ad58e75e | 202 | break; |
953d8fe3 KB |
203 | case 'p': /* path */ |
204 | LogName = optarg; | |
205 | break; | |
206 | case '?': | |
a49a6aba RC |
207 | default: |
208 | usage(); | |
e677da31 | 209 | } |
953d8fe3 KB |
210 | if (argc -= optind) |
211 | usage(); | |
e677da31 RC |
212 | |
213 | if (!Debug) { | |
214 | if (fork()) | |
215 | exit(0); | |
216 | for (i = 0; i < 10; i++) | |
217 | (void) close(i); | |
218 | (void) open("/", 0); | |
219 | (void) dup2(0, 1); | |
220 | (void) dup2(0, 2); | |
a49a6aba | 221 | untty(); |
84555b38 RC |
222 | } else |
223 | setlinebuf(stdout); | |
224 | ||
92e73e63 MK |
225 | consfile.f_type = F_CONSOLE; |
226 | (void) strcpy(consfile.f_un.f_fname, ctty); | |
ad58e75e EA |
227 | (void) gethostname(LocalHostName, sizeof LocalHostName); |
228 | if (p = index(LocalHostName, '.')) { | |
229 | *p++ = '\0'; | |
230 | LocalDomain = p; | |
231 | } | |
232 | else | |
233 | LocalDomain = ""; | |
64b300b4 | 234 | (void) signal(SIGTERM, die); |
67f1f408 EA |
235 | (void) signal(SIGINT, Debug ? die : SIG_IGN); |
236 | (void) signal(SIGQUIT, Debug ? die : SIG_IGN); | |
64b300b4 | 237 | (void) signal(SIGCHLD, reapchild); |
ad58e75e | 238 | (void) signal(SIGALRM, domark); |
92e73e63 | 239 | (void) alarm(TIMERINTVL); |
64b300b4 EA |
240 | (void) unlink(LogName); |
241 | ||
0f607d14 | 242 | bzero((char *)&sunx, sizeof(sunx)); |
0d20624e KM |
243 | sunx.sun_family = AF_UNIX; |
244 | (void) strncpy(sunx.sun_path, LogName, sizeof sunx.sun_path); | |
e677da31 | 245 | funix = socket(AF_UNIX, SOCK_DGRAM, 0); |
0d20624e | 246 | if (funix < 0 || bind(funix, (struct sockaddr *) &sunx, |
0f607d14 KB |
247 | sizeof(sunx.sun_family)+sizeof(sunx.sun_len)+ |
248 | strlen(sunx.sun_path)) < 0 || | |
64b300b4 EA |
249 | chmod(LogName, 0666) < 0) { |
250 | (void) sprintf(line, "cannot create %s", LogName); | |
251 | logerror(line); | |
252 | dprintf("cannot create %s (%d)\n", LogName, errno); | |
253 | die(0); | |
e677da31 | 254 | } |
e677da31 RC |
255 | finet = socket(AF_INET, SOCK_DGRAM, 0); |
256 | if (finet >= 0) { | |
257 | struct servent *sp; | |
258 | ||
259 | sp = getservbyname("syslog", "udp"); | |
260 | if (sp == NULL) { | |
261 | errno = 0; | |
262 | logerror("syslog/udp: unknown service"); | |
64b300b4 | 263 | die(0); |
e677da31 RC |
264 | } |
265 | sin.sin_family = AF_INET; | |
64b300b4 EA |
266 | sin.sin_port = LogPort = sp->s_port; |
267 | if (bind(finet, &sin, sizeof(sin)) < 0) { | |
e677da31 | 268 | logerror("bind"); |
64b300b4 EA |
269 | if (!Debug) |
270 | die(0); | |
271 | } else { | |
272 | inetm = FDMASK(finet); | |
273 | InetInuse = 1; | |
e677da31 | 274 | } |
e677da31 | 275 | } |
61b108ae | 276 | if ((fklog = open(_PATH_KLOG, O_RDONLY, 0)) >= 0) |
64b300b4 | 277 | klogm = FDMASK(fklog); |
84555b38 | 278 | else { |
61b108ae | 279 | dprintf("can't open %s (%d)\n", _PATH_KLOG, errno); |
a49a6aba RC |
280 | klogm = 0; |
281 | } | |
e677da31 RC |
282 | |
283 | /* tuck my process id away */ | |
64b300b4 | 284 | fp = fopen(PidFile, "w"); |
e677da31 RC |
285 | if (fp != NULL) { |
286 | fprintf(fp, "%d\n", getpid()); | |
64b300b4 | 287 | (void) fclose(fp); |
e677da31 RC |
288 | } |
289 | ||
290 | dprintf("off & running....\n"); | |
291 | ||
e677da31 | 292 | init(); |
64b300b4 | 293 | (void) signal(SIGHUP, init); |
454c883a | 294 | |
e677da31 | 295 | for (;;) { |
64b300b4 | 296 | int nfds, readfds = FDMASK(funix) | inetm | klogm; |
e677da31 | 297 | |
64b300b4 | 298 | errno = 0; |
ff8002b1 | 299 | dprintf("readfds = %#x\n", readfds); |
64b300b4 EA |
300 | nfds = select(20, (fd_set *) &readfds, (fd_set *) NULL, |
301 | (fd_set *) NULL, (struct timeval *) NULL); | |
e677da31 RC |
302 | if (nfds == 0) |
303 | continue; | |
304 | if (nfds < 0) { | |
64b300b4 EA |
305 | if (errno != EINTR) |
306 | logerror("select"); | |
e677da31 RC |
307 | continue; |
308 | } | |
92e73e63 | 309 | dprintf("got a message (%d, %#x)\n", nfds, readfds); |
a49a6aba | 310 | if (readfds & klogm) { |
84555b38 | 311 | i = read(fklog, line, sizeof(line) - 1); |
8a7154b1 RC |
312 | if (i > 0) { |
313 | line[i] = '\0'; | |
314 | printsys(line); | |
a49a6aba | 315 | } else if (i < 0 && errno != EINTR) { |
84555b38 RC |
316 | logerror("klog"); |
317 | fklog = -1; | |
a49a6aba RC |
318 | klogm = 0; |
319 | } | |
8a7154b1 | 320 | } |
64b300b4 | 321 | if (readfds & FDMASK(funix)) { |
e677da31 | 322 | len = sizeof fromunix; |
64b300b4 EA |
323 | i = recvfrom(funix, line, MAXLINE, 0, |
324 | (struct sockaddr *) &fromunix, &len); | |
a24c481a RC |
325 | if (i > 0) { |
326 | line[i] = '\0'; | |
64b300b4 | 327 | printline(LocalHostName, line); |
a24c481a | 328 | } else if (i < 0 && errno != EINTR) |
64b300b4 | 329 | logerror("recvfrom unix"); |
a24c481a | 330 | } |
84555b38 | 331 | if (readfds & inetm) { |
e677da31 RC |
332 | len = sizeof frominet; |
333 | i = recvfrom(finet, line, MAXLINE, 0, &frominet, &len); | |
64b300b4 EA |
334 | if (i > 0) { |
335 | extern char *cvthname(); | |
336 | ||
a24c481a | 337 | line[i] = '\0'; |
64b300b4 | 338 | printline(cvthname(&frominet), line); |
a24c481a | 339 | } else if (i < 0 && errno != EINTR) |
64b300b4 | 340 | logerror("recvfrom inet"); |
a24c481a | 341 | } |
e677da31 RC |
342 | } |
343 | } | |
344 | ||
a49a6aba RC |
345 | usage() |
346 | { | |
953d8fe3 | 347 | fprintf(stderr, "usage: syslogd [-d] [-m markinterval] [-p path] [-f conffile]\n"); |
a49a6aba RC |
348 | exit(1); |
349 | } | |
350 | ||
351 | untty() | |
352 | { | |
353 | int i; | |
354 | ||
355 | if (!Debug) { | |
7abf8d65 | 356 | i = open(_PATH_TTY, O_RDWR); |
a49a6aba | 357 | if (i >= 0) { |
64b300b4 | 358 | (void) ioctl(i, (int) TIOCNOTTY, (char *)0); |
a49a6aba RC |
359 | (void) close(i); |
360 | } | |
361 | } | |
362 | } | |
363 | ||
e677da31 RC |
364 | /* |
365 | * Take a raw input line, decode the message, and print the message | |
366 | * on the appropriate log files. | |
367 | */ | |
368 | ||
64b300b4 EA |
369 | printline(hname, msg) |
370 | char *hname; | |
e677da31 RC |
371 | char *msg; |
372 | { | |
373 | register char *p, *q; | |
374 | register int c; | |
63cb489e | 375 | char line[MAXLINE + 1]; |
e677da31 RC |
376 | int pri; |
377 | ||
378 | /* test for special codes */ | |
a49a6aba | 379 | pri = DEFUPRI; |
e677da31 | 380 | p = msg; |
a49a6aba RC |
381 | if (*p == '<') { |
382 | pri = 0; | |
383 | while (isdigit(*++p)) | |
384 | pri = 10 * pri + (*p - '0'); | |
385 | if (*p == '>') | |
386 | ++p; | |
e677da31 | 387 | } |
35c3f83c MK |
388 | if (pri &~ (LOG_FACMASK|LOG_PRIMASK)) |
389 | pri = DEFUPRI; | |
e677da31 | 390 | |
64b300b4 | 391 | /* don't allow users to log kernel messages */ |
35c3f83c MK |
392 | if (LOG_FAC(pri) == LOG_KERN) |
393 | pri = LOG_MAKEPRI(LOG_USER, LOG_PRI(pri)); | |
64b300b4 | 394 | |
e677da31 | 395 | q = line; |
64b300b4 | 396 | |
953d8fe3 KB |
397 | while ((c = *p++ & 0177) != '\0' && |
398 | q < &line[sizeof(line) - 1]) | |
0d52e368 KB |
399 | if (iscntrl(c)) |
400 | if (c == '\n') | |
401 | *q++ = ' '; | |
402 | else if (c == '\t') | |
403 | *q++ = '\t'; | |
404 | else { | |
405 | *q++ = '^'; | |
406 | *q++ = c ^ 0100; | |
407 | } | |
408 | else | |
e677da31 | 409 | *q++ = c; |
e677da31 RC |
410 | *q = '\0'; |
411 | ||
64b300b4 | 412 | logmsg(pri, line, hname, 0); |
e677da31 RC |
413 | } |
414 | ||
63cb489e RC |
415 | /* |
416 | * Take a raw input line from /dev/klog, split and format similar to syslog(). | |
417 | */ | |
418 | ||
419 | printsys(msg) | |
420 | char *msg; | |
421 | { | |
422 | register char *p, *q; | |
423 | register int c; | |
424 | char line[MAXLINE + 1]; | |
8a7154b1 | 425 | int pri, flags; |
a49a6aba | 426 | char *lp; |
63cb489e | 427 | |
92e73e63 | 428 | (void) sprintf(line, "vmunix: "); |
a49a6aba | 429 | lp = line + strlen(line); |
63cb489e | 430 | for (p = msg; *p != '\0'; ) { |
92e73e63 | 431 | flags = SYNC_FILE | ADDDATE; /* fsync file after write */ |
a49a6aba RC |
432 | pri = DEFSPRI; |
433 | if (*p == '<') { | |
434 | pri = 0; | |
435 | while (isdigit(*++p)) | |
436 | pri = 10 * pri + (*p - '0'); | |
437 | if (*p == '>') | |
438 | ++p; | |
8a7154b1 RC |
439 | } else { |
440 | /* kernel printf's come out on console */ | |
441 | flags |= IGN_CONS; | |
442 | } | |
35c3f83c MK |
443 | if (pri &~ (LOG_FACMASK|LOG_PRIMASK)) |
444 | pri = DEFSPRI; | |
a49a6aba RC |
445 | q = lp; |
446 | while (*p != '\0' && (c = *p++) != '\n' && | |
447 | q < &line[MAXLINE]) | |
63cb489e RC |
448 | *q++ = c; |
449 | *q = '\0'; | |
64b300b4 | 450 | logmsg(pri, line, LocalHostName, flags); |
63cb489e RC |
451 | } |
452 | } | |
453 | ||
92e73e63 MK |
454 | time_t now; |
455 | ||
e677da31 RC |
456 | /* |
457 | * Log a message to the appropriate log files, users, etc. based on | |
458 | * the priority. | |
459 | */ | |
460 | ||
8a7154b1 | 461 | logmsg(pri, msg, from, flags) |
64b300b4 EA |
462 | int pri; |
463 | char *msg, *from; | |
464 | int flags; | |
e677da31 | 465 | { |
e677da31 | 466 | register struct filed *f; |
64b300b4 | 467 | int fac, prilev; |
92e73e63 MK |
468 | int omask, msglen; |
469 | char *timestamp; | |
84555b38 | 470 | |
64b300b4 EA |
471 | dprintf("logmsg: pri %o, flags %x, from %s, msg %s\n", pri, flags, from, msg); |
472 | ||
ad58e75e | 473 | omask = sigblock(sigmask(SIGHUP)|sigmask(SIGALRM)); |
ada83039 | 474 | |
64b300b4 EA |
475 | /* |
476 | * Check to see if msg looks non-standard. | |
477 | */ | |
92e73e63 MK |
478 | msglen = strlen(msg); |
479 | if (msglen < 16 || msg[3] != ' ' || msg[6] != ' ' || | |
ad58e75e | 480 | msg[9] != ':' || msg[12] != ':' || msg[15] != ' ') |
64b300b4 | 481 | flags |= ADDDATE; |
a49a6aba | 482 | |
ad58e75e EA |
483 | (void) time(&now); |
484 | if (flags & ADDDATE) | |
92e73e63 MK |
485 | timestamp = ctime(&now) + 4; |
486 | else { | |
487 | timestamp = msg; | |
488 | msg += 16; | |
489 | msglen -= 16; | |
490 | } | |
64b300b4 EA |
491 | |
492 | /* extract facility and priority level */ | |
c16a39e2 MK |
493 | if (flags & MARK) |
494 | fac = LOG_NFACILITIES; | |
35c3f83c MK |
495 | else |
496 | fac = LOG_FAC(pri); | |
497 | prilev = LOG_PRI(pri); | |
64b300b4 | 498 | |
e677da31 | 499 | /* log the message to the particular outputs */ |
64b300b4 | 500 | if (!Initialized) { |
92e73e63 MK |
501 | f = &consfile; |
502 | f->f_file = open(ctty, O_WRONLY); | |
64b300b4 | 503 | |
92e73e63 MK |
504 | if (f->f_file >= 0) { |
505 | untty(); | |
c49273cf | 506 | fprintlog(f, flags, msg); |
92e73e63 | 507 | (void) close(f->f_file); |
64b300b4 | 508 | } |
7eefe9c1 | 509 | (void) sigsetmask(omask); |
64b300b4 EA |
510 | return; |
511 | } | |
92e73e63 | 512 | for (f = Files; f; f = f->f_next) { |
64b300b4 EA |
513 | /* skip messages that are incorrect priority */ |
514 | if (f->f_pmask[fac] < prilev || f->f_pmask[fac] == NOPRI) | |
a49a6aba | 515 | continue; |
64b300b4 | 516 | |
35c3f83c MK |
517 | if (f->f_type == F_CONSOLE && (flags & IGN_CONS)) |
518 | continue; | |
519 | ||
ad58e75e | 520 | /* don't output marks to recently written files */ |
92e73e63 | 521 | if ((flags & MARK) && (now - f->f_time) < MarkInterval / 2) |
ad58e75e EA |
522 | continue; |
523 | ||
92e73e63 MK |
524 | /* |
525 | * suppress duplicate lines to this file | |
526 | */ | |
527 | if ((flags & MARK) == 0 && msglen == f->f_prevlen && | |
528 | !strcmp(msg, f->f_prevline) && | |
529 | !strcmp(from, f->f_prevhost)) { | |
530 | (void) strncpy(f->f_lasttime, timestamp, 15); | |
531 | f->f_prevcount++; | |
953d8fe3 | 532 | dprintf("msg repeated %d times, %ld sec of %d\n", |
92e73e63 MK |
533 | f->f_prevcount, now - f->f_time, |
534 | repeatinterval[f->f_repeatcount]); | |
535 | /* | |
536 | * If domark would have logged this by now, | |
537 | * flush it now (so we don't hold isolated messages), | |
538 | * but back off so we'll flush less often | |
539 | * in the future. | |
540 | */ | |
541 | if (now > REPEATTIME(f)) { | |
35c3f83c | 542 | fprintlog(f, flags, (char *)NULL); |
92e73e63 | 543 | BACKOFF(f); |
8a7154b1 | 544 | } |
92e73e63 MK |
545 | } else { |
546 | /* new line, save it */ | |
35c3f83c MK |
547 | if (f->f_prevcount) |
548 | fprintlog(f, 0, (char *)NULL); | |
549 | f->f_repeatcount = 0; | |
92e73e63 | 550 | (void) strncpy(f->f_lasttime, timestamp, 15); |
35c3f83c MK |
551 | (void) strncpy(f->f_prevhost, from, |
552 | sizeof(f->f_prevhost)); | |
553 | if (msglen < MAXSVLINE) { | |
92e73e63 MK |
554 | f->f_prevlen = msglen; |
555 | f->f_prevpri = pri; | |
556 | (void) strcpy(f->f_prevline, msg); | |
35c3f83c MK |
557 | fprintlog(f, flags, (char *)NULL); |
558 | } else { | |
92e73e63 | 559 | f->f_prevline[0] = 0; |
35c3f83c MK |
560 | f->f_prevlen = 0; |
561 | fprintlog(f, flags, msg); | |
562 | } | |
92e73e63 MK |
563 | } |
564 | } | |
565 | (void) sigsetmask(omask); | |
566 | } | |
64b300b4 | 567 | |
35c3f83c | 568 | fprintlog(f, flags, msg) |
92e73e63 MK |
569 | register struct filed *f; |
570 | int flags; | |
35c3f83c | 571 | char *msg; |
92e73e63 MK |
572 | { |
573 | struct iovec iov[6]; | |
574 | register struct iovec *v = iov; | |
575 | register int l; | |
576 | char line[MAXLINE + 1]; | |
577 | char repbuf[80]; | |
578 | ||
579 | v->iov_base = f->f_lasttime; | |
580 | v->iov_len = 15; | |
581 | v++; | |
582 | v->iov_base = " "; | |
583 | v->iov_len = 1; | |
584 | v++; | |
585 | v->iov_base = f->f_prevhost; | |
586 | v->iov_len = strlen(v->iov_base); | |
587 | v++; | |
588 | v->iov_base = " "; | |
589 | v->iov_len = 1; | |
590 | v++; | |
35c3f83c MK |
591 | if (msg) { |
592 | v->iov_base = msg; | |
593 | v->iov_len = strlen(msg); | |
594 | } else if (f->f_prevcount > 1) { | |
92e73e63 MK |
595 | (void) sprintf(repbuf, "last message repeated %d times", |
596 | f->f_prevcount); | |
597 | v->iov_base = repbuf; | |
598 | v->iov_len = strlen(repbuf); | |
599 | } else { | |
600 | v->iov_base = f->f_prevline; | |
601 | v->iov_len = f->f_prevlen; | |
602 | } | |
603 | v++; | |
604 | ||
605 | dprintf("Logging to %s", TypeNames[f->f_type]); | |
606 | f->f_time = now; | |
607 | ||
608 | switch (f->f_type) { | |
609 | case F_UNUSED: | |
610 | dprintf("\n"); | |
611 | break; | |
612 | ||
613 | case F_FORW: | |
614 | dprintf(" %s\n", f->f_un.f_forw.f_hname); | |
615 | (void) sprintf(line, "<%d>%.15s %s", f->f_prevpri, | |
616 | iov[0].iov_base, iov[4].iov_base); | |
617 | l = strlen(line); | |
618 | if (l > MAXLINE) | |
619 | l = MAXLINE; | |
620 | if (sendto(finet, line, l, 0, &f->f_un.f_forw.f_addr, | |
621 | sizeof f->f_un.f_forw.f_addr) != l) { | |
622 | int e = errno; | |
623 | (void) close(f->f_file); | |
624 | f->f_type = F_UNUSED; | |
625 | errno = e; | |
626 | logerror("sendto"); | |
627 | } | |
628 | break; | |
629 | ||
630 | case F_CONSOLE: | |
631 | if (flags & IGN_CONS) { | |
632 | dprintf(" (ignored)\n"); | |
64b300b4 | 633 | break; |
92e73e63 MK |
634 | } |
635 | /* FALLTHROUGH */ | |
e677da31 | 636 | |
92e73e63 MK |
637 | case F_TTY: |
638 | case F_FILE: | |
639 | dprintf(" %s\n", f->f_un.f_fname); | |
640 | if (f->f_type != F_FILE) { | |
64b300b4 EA |
641 | v->iov_base = "\r\n"; |
642 | v->iov_len = 2; | |
92e73e63 MK |
643 | } else { |
644 | v->iov_base = "\n"; | |
645 | v->iov_len = 1; | |
64b300b4 | 646 | } |
92e73e63 MK |
647 | again: |
648 | if (writev(f->f_file, iov, 6) < 0) { | |
649 | int e = errno; | |
650 | (void) close(f->f_file); | |
651 | /* | |
652 | * Check for EBADF on TTY's due to vhangup() XXX | |
653 | */ | |
654 | if (e == EBADF && f->f_type != F_FILE) { | |
655 | f->f_file = open(f->f_un.f_fname, O_WRONLY|O_APPEND); | |
656 | if (f->f_file < 0) { | |
657 | f->f_type = F_UNUSED; | |
658 | logerror(f->f_un.f_fname); | |
659 | } else { | |
660 | untty(); | |
661 | goto again; | |
662 | } | |
663 | } else { | |
664 | f->f_type = F_UNUSED; | |
665 | errno = e; | |
666 | logerror(f->f_un.f_fname); | |
667 | } | |
668 | } else if (flags & SYNC_FILE) | |
669 | (void) fsync(f->f_file); | |
670 | break; | |
e677da31 | 671 | |
92e73e63 MK |
672 | case F_USERS: |
673 | case F_WALL: | |
674 | dprintf("\n"); | |
675 | v->iov_base = "\r\n"; | |
676 | v->iov_len = 2; | |
677 | wallmsg(f, iov); | |
678 | break; | |
679 | } | |
680 | f->f_prevcount = 0; | |
e677da31 RC |
681 | } |
682 | ||
92e73e63 MK |
683 | jmp_buf ttybuf; |
684 | ||
685 | endtty() | |
686 | { | |
687 | longjmp(ttybuf, 1); | |
688 | } | |
64b300b4 | 689 | |
e677da31 RC |
690 | /* |
691 | * WALLMSG -- Write a message to the world at large | |
692 | * | |
693 | * Write the specified message to either the entire | |
694 | * world, or a list of approved users. | |
695 | */ | |
696 | ||
64b300b4 EA |
697 | wallmsg(f, iov) |
698 | register struct filed *f; | |
699 | struct iovec *iov; | |
e677da31 RC |
700 | { |
701 | register char *p; | |
702 | register int i; | |
64b300b4 | 703 | int ttyf, len; |
ada83039 | 704 | FILE *uf; |
64b300b4 | 705 | static int reenter = 0; |
e677da31 | 706 | struct utmp ut; |
64b300b4 EA |
707 | char greetings[200]; |
708 | ||
709 | if (reenter++) | |
710 | return; | |
e677da31 RC |
711 | |
712 | /* open the user login file */ | |
61b108ae KB |
713 | if ((uf = fopen(_PATH_UTMP, "r")) == NULL) { |
714 | logerror(_PATH_UTMP); | |
64b300b4 | 715 | reenter = 0; |
e677da31 | 716 | return; |
ada83039 | 717 | } |
e677da31 | 718 | |
92e73e63 MK |
719 | /* |
720 | * Might as well fork instead of using nonblocking I/O | |
721 | * and doing notty(). | |
722 | */ | |
723 | if (fork() == 0) { | |
724 | (void) signal(SIGTERM, SIG_DFL); | |
725 | (void) alarm(0); | |
726 | (void) signal(SIGALRM, endtty); | |
727 | (void) signal(SIGTTOU, SIG_IGN); | |
728 | (void) sigsetmask(0); | |
729 | (void) sprintf(greetings, | |
730 | "\r\n\7Message from syslogd@%s at %.24s ...\r\n", | |
731 | iov[2].iov_base, ctime(&now)); | |
732 | len = strlen(greetings); | |
733 | ||
734 | /* scan the user login file */ | |
735 | while (fread((char *) &ut, sizeof ut, 1, uf) == 1) { | |
736 | /* is this slot used? */ | |
737 | if (ut.ut_name[0] == '\0') | |
738 | continue; | |
e677da31 | 739 | |
92e73e63 MK |
740 | /* should we send the message to this user? */ |
741 | if (f->f_type == F_USERS) { | |
742 | for (i = 0; i < MAXUNAMES; i++) { | |
743 | if (!f->f_un.f_uname[i][0]) { | |
744 | i = MAXUNAMES; | |
745 | break; | |
746 | } | |
747 | if (strncmp(f->f_un.f_uname[i], | |
748 | ut.ut_name, UNAMESZ) == 0) | |
749 | break; | |
64b300b4 | 750 | } |
92e73e63 MK |
751 | if (i >= MAXUNAMES) |
752 | continue; | |
e677da31 | 753 | } |
e677da31 | 754 | |
92e73e63 MK |
755 | /* compute the device name */ |
756 | p = "/dev/12345678"; | |
757 | strncpy(&p[5], ut.ut_line, UNAMESZ); | |
e677da31 | 758 | |
64b300b4 EA |
759 | if (f->f_type == F_WALL) { |
760 | iov[0].iov_base = greetings; | |
761 | iov[0].iov_len = len; | |
ad58e75e | 762 | iov[1].iov_len = 0; |
64b300b4 | 763 | } |
92e73e63 MK |
764 | if (setjmp(ttybuf) == 0) { |
765 | (void) alarm(15); | |
766 | /* open the terminal */ | |
767 | ttyf = open(p, O_WRONLY); | |
768 | if (ttyf >= 0) { | |
769 | struct stat statb; | |
770 | ||
771 | if (fstat(ttyf, &statb) == 0 && | |
772 | (statb.st_mode & S_IWRITE)) | |
773 | (void) writev(ttyf, iov, 6); | |
774 | close(ttyf); | |
775 | ttyf = -1; | |
776 | } | |
fcd484c8 | 777 | } |
92e73e63 | 778 | (void) alarm(0); |
e677da31 | 779 | } |
92e73e63 | 780 | exit(0); |
e677da31 | 781 | } |
e677da31 | 782 | /* close the user login file */ |
84555b38 | 783 | (void) fclose(uf); |
64b300b4 | 784 | reenter = 0; |
84555b38 RC |
785 | } |
786 | ||
787 | reapchild() | |
788 | { | |
789 | union wait status; | |
790 | ||
64b300b4 | 791 | while (wait3(&status, WNOHANG, (struct rusage *) NULL) > 0) |
84555b38 | 792 | ; |
e677da31 RC |
793 | } |
794 | ||
795 | /* | |
64b300b4 | 796 | * Return a printable representation of a host address. |
e677da31 | 797 | */ |
64b300b4 EA |
798 | char * |
799 | cvthname(f) | |
e677da31 RC |
800 | struct sockaddr_in *f; |
801 | { | |
802 | struct hostent *hp; | |
ad58e75e | 803 | register char *p; |
e677da31 RC |
804 | extern char *inet_ntoa(); |
805 | ||
64b300b4 | 806 | dprintf("cvthname(%s)\n", inet_ntoa(f->sin_addr)); |
e677da31 RC |
807 | |
808 | if (f->sin_family != AF_INET) { | |
809 | dprintf("Malformed from address\n"); | |
64b300b4 | 810 | return ("???"); |
e677da31 RC |
811 | } |
812 | hp = gethostbyaddr(&f->sin_addr, sizeof(struct in_addr), f->sin_family); | |
813 | if (hp == 0) { | |
814 | dprintf("Host name for your address (%s) unknown\n", | |
815 | inet_ntoa(f->sin_addr)); | |
64b300b4 | 816 | return (inet_ntoa(f->sin_addr)); |
e677da31 | 817 | } |
ad58e75e EA |
818 | if ((p = index(hp->h_name, '.')) && strcmp(p + 1, LocalDomain) == 0) |
819 | *p = '\0'; | |
64b300b4 | 820 | return (hp->h_name); |
e677da31 RC |
821 | } |
822 | ||
ad58e75e EA |
823 | domark() |
824 | { | |
92e73e63 | 825 | register struct filed *f; |
ad58e75e | 826 | |
92e73e63 MK |
827 | now = time(0); |
828 | MarkSeq += TIMERINTVL; | |
829 | if (MarkSeq >= MarkInterval) { | |
c16a39e2 | 830 | logmsg(LOG_INFO, "-- MARK --", LocalHostName, ADDDATE|MARK); |
92e73e63 MK |
831 | MarkSeq = 0; |
832 | } | |
ad58e75e | 833 | |
92e73e63 MK |
834 | for (f = Files; f; f = f->f_next) { |
835 | if (f->f_prevcount && now >= REPEATTIME(f)) { | |
836 | dprintf("flush %s: repeated %d times, %d sec.\n", | |
837 | TypeNames[f->f_type], f->f_prevcount, | |
838 | repeatinterval[f->f_repeatcount]); | |
35c3f83c | 839 | fprintlog(f, 0, (char *)NULL); |
92e73e63 MK |
840 | BACKOFF(f); |
841 | } | |
842 | } | |
843 | (void) alarm(TIMERINTVL); | |
a49a6aba RC |
844 | } |
845 | ||
e677da31 RC |
846 | /* |
847 | * Print syslogd errors some place. | |
848 | */ | |
849 | logerror(type) | |
850 | char *type; | |
851 | { | |
852 | char buf[100]; | |
853 | ||
854 | if (errno == 0) | |
64b300b4 | 855 | (void) sprintf(buf, "syslogd: %s", type); |
e677da31 | 856 | else if ((unsigned) errno > sys_nerr) |
64b300b4 | 857 | (void) sprintf(buf, "syslogd: %s: error %d", type, errno); |
e677da31 | 858 | else |
64b300b4 | 859 | (void) sprintf(buf, "syslogd: %s: %s", type, sys_errlist[errno]); |
e677da31 | 860 | errno = 0; |
ada83039 | 861 | dprintf("%s\n", buf); |
ad58e75e | 862 | logmsg(LOG_SYSLOG|LOG_ERR, buf, LocalHostName, ADDDATE); |
e677da31 RC |
863 | } |
864 | ||
64b300b4 | 865 | die(sig) |
e677da31 | 866 | { |
92e73e63 | 867 | register struct filed *f; |
64b300b4 | 868 | char buf[100]; |
ada83039 | 869 | |
92e73e63 MK |
870 | for (f = Files; f != NULL; f = f->f_next) { |
871 | /* flush any pending output */ | |
872 | if (f->f_prevcount) | |
35c3f83c | 873 | fprintlog(f, 0, (char *)NULL); |
92e73e63 | 874 | } |
a075f884 | 875 | if (sig) { |
92e73e63 MK |
876 | dprintf("syslogd: exiting on signal %d\n", sig); |
877 | (void) sprintf(buf, "exiting on signal %d", sig); | |
d34bf11a | 878 | errno = 0; |
a075f884 MK |
879 | logerror(buf); |
880 | } | |
64b300b4 | 881 | (void) unlink(LogName); |
e677da31 RC |
882 | exit(0); |
883 | } | |
a49a6aba RC |
884 | |
885 | /* | |
64b300b4 | 886 | * INIT -- Initialize syslogd from configuration table |
a49a6aba | 887 | */ |
64b300b4 EA |
888 | |
889 | init() | |
a49a6aba | 890 | { |
a49a6aba | 891 | register int i; |
64b300b4 | 892 | register FILE *cf; |
92e73e63 | 893 | register struct filed *f, *next, **nextp; |
64b300b4 EA |
894 | register char *p; |
895 | char cline[BUFSIZ]; | |
a49a6aba | 896 | |
64b300b4 EA |
897 | dprintf("init\n"); |
898 | ||
64b300b4 EA |
899 | /* |
900 | * Close all open log files. | |
901 | */ | |
d34bf11a | 902 | Initialized = 0; |
92e73e63 MK |
903 | for (f = Files; f != NULL; f = next) { |
904 | /* flush any pending output */ | |
905 | if (f->f_prevcount) | |
35c3f83c | 906 | fprintlog(f, 0, (char *)NULL); |
92e73e63 | 907 | |
bb112360 EA |
908 | switch (f->f_type) { |
909 | case F_FILE: | |
910 | case F_TTY: | |
bb112360 | 911 | case F_CONSOLE: |
2efc48b0 | 912 | case F_FORW: |
64b300b4 | 913 | (void) close(f->f_file); |
bb112360 EA |
914 | break; |
915 | } | |
92e73e63 MK |
916 | next = f->f_next; |
917 | free((char *) f); | |
64b300b4 | 918 | } |
92e73e63 MK |
919 | Files = NULL; |
920 | nextp = &Files; | |
64b300b4 EA |
921 | |
922 | /* open the configuration file */ | |
923 | if ((cf = fopen(ConfFile, "r")) == NULL) { | |
924 | dprintf("cannot open %s\n", ConfFile); | |
92e73e63 MK |
925 | *nextp = (struct filed *)calloc(1, sizeof(*f)); |
926 | cfline("*.ERR\t/dev/console", *nextp); | |
927 | (*nextp)->f_next = (struct filed *)calloc(1, sizeof(*f)); | |
928 | cfline("*.PANIC\t*", (*nextp)->f_next); | |
929 | Initialized = 1; | |
64b300b4 EA |
930 | return; |
931 | } | |
932 | ||
933 | /* | |
934 | * Foreach line in the conf table, open that file. | |
935 | */ | |
92e73e63 MK |
936 | f = NULL; |
937 | while (fgets(cline, sizeof cline, cf) != NULL) { | |
e15840af KB |
938 | /* |
939 | * check for end-of-section, comments, strip off trailing | |
940 | * spaces and newline character. | |
941 | */ | |
942 | for (p = cline; isspace(*p); ++p); | |
943 | if (*p == NULL || *p == '#') | |
a49a6aba | 944 | continue; |
e15840af KB |
945 | for (p = index(cline, '\0'); isspace(*--p);); |
946 | *++p = '\0'; | |
92e73e63 MK |
947 | f = (struct filed *)calloc(1, sizeof(*f)); |
948 | *nextp = f; | |
949 | nextp = &f->f_next; | |
92e73e63 | 950 | cfline(cline, f); |
64b300b4 EA |
951 | } |
952 | ||
953 | /* close the configuration file */ | |
954 | (void) fclose(cf); | |
955 | ||
956 | Initialized = 1; | |
957 | ||
958 | if (Debug) { | |
92e73e63 | 959 | for (f = Files; f; f = f->f_next) { |
c16a39e2 | 960 | for (i = 0; i <= LOG_NFACILITIES; i++) |
64b300b4 EA |
961 | if (f->f_pmask[i] == NOPRI) |
962 | printf("X "); | |
963 | else | |
964 | printf("%d ", f->f_pmask[i]); | |
965 | printf("%s: ", TypeNames[f->f_type]); | |
966 | switch (f->f_type) { | |
967 | case F_FILE: | |
968 | case F_TTY: | |
969 | case F_CONSOLE: | |
970 | printf("%s", f->f_un.f_fname); | |
971 | break; | |
972 | ||
973 | case F_FORW: | |
974 | printf("%s", f->f_un.f_forw.f_hname); | |
975 | break; | |
976 | ||
977 | case F_USERS: | |
978 | for (i = 0; i < MAXUNAMES && *f->f_un.f_uname[i]; i++) | |
979 | printf("%s, ", f->f_un.f_uname[i]); | |
980 | break; | |
981 | } | |
982 | printf("\n"); | |
983 | } | |
984 | } | |
985 | ||
ad58e75e | 986 | logmsg(LOG_SYSLOG|LOG_INFO, "syslogd: restart", LocalHostName, ADDDATE); |
64b300b4 EA |
987 | dprintf("syslogd: restarted\n"); |
988 | } | |
989 | ||
990 | /* | |
991 | * Crack a configuration file line | |
992 | */ | |
993 | ||
994 | struct code { | |
995 | char *c_name; | |
996 | int c_val; | |
997 | }; | |
998 | ||
999 | struct code PriNames[] = { | |
1000 | "panic", LOG_EMERG, | |
1001 | "emerg", LOG_EMERG, | |
1002 | "alert", LOG_ALERT, | |
1003 | "crit", LOG_CRIT, | |
1004 | "err", LOG_ERR, | |
1005 | "error", LOG_ERR, | |
1006 | "warn", LOG_WARNING, | |
1007 | "warning", LOG_WARNING, | |
1008 | "notice", LOG_NOTICE, | |
1009 | "info", LOG_INFO, | |
1010 | "debug", LOG_DEBUG, | |
ad58e75e | 1011 | "none", NOPRI, |
64b300b4 EA |
1012 | NULL, -1 |
1013 | }; | |
1014 | ||
1015 | struct code FacNames[] = { | |
1016 | "kern", LOG_KERN, | |
1017 | "user", LOG_USER, | |
1018 | "mail", LOG_MAIL, | |
623d5539 | 1019 | "daemon", LOG_DAEMON, |
64b300b4 EA |
1020 | "auth", LOG_AUTH, |
1021 | "security", LOG_AUTH, | |
c16a39e2 | 1022 | "mark", LOG_MARK, |
ad58e75e | 1023 | "syslog", LOG_SYSLOG, |
891383bf | 1024 | "lpr", LOG_LPR, |
61a57de9 | 1025 | "news", LOG_NEWS, |
09fa8a60 | 1026 | "uucp", LOG_UUCP, |
64b300b4 EA |
1027 | "local0", LOG_LOCAL0, |
1028 | "local1", LOG_LOCAL1, | |
1029 | "local2", LOG_LOCAL2, | |
1030 | "local3", LOG_LOCAL3, | |
1031 | "local4", LOG_LOCAL4, | |
1032 | "local5", LOG_LOCAL5, | |
1033 | "local6", LOG_LOCAL6, | |
1034 | "local7", LOG_LOCAL7, | |
1035 | NULL, -1 | |
1036 | }; | |
1037 | ||
1038 | cfline(line, f) | |
1039 | char *line; | |
1040 | register struct filed *f; | |
1041 | { | |
1042 | register char *p; | |
1043 | register char *q; | |
1044 | register int i; | |
1045 | char *bp; | |
1046 | int pri; | |
1047 | struct hostent *hp; | |
1048 | char buf[MAXLINE]; | |
1049 | ||
1050 | dprintf("cfline(%s)\n", line); | |
1051 | ||
e15840af | 1052 | errno = 0; /* keep sys_errlist stuff out of logerror messages */ |
d34bf11a | 1053 | |
64b300b4 EA |
1054 | /* clear out file entry */ |
1055 | bzero((char *) f, sizeof *f); | |
c16a39e2 | 1056 | for (i = 0; i <= LOG_NFACILITIES; i++) |
64b300b4 EA |
1057 | f->f_pmask[i] = NOPRI; |
1058 | ||
1059 | /* scan through the list of selectors */ | |
1060 | for (p = line; *p && *p != '\t';) { | |
1061 | ||
1062 | /* find the end of this facility name list */ | |
1063 | for (q = p; *q && *q != '\t' && *q++ != '.'; ) | |
a49a6aba | 1064 | continue; |
64b300b4 EA |
1065 | |
1066 | /* collect priority name */ | |
1067 | for (bp = buf; *q && !index("\t,;", *q); ) | |
1068 | *bp++ = *q++; | |
1069 | *bp = '\0'; | |
1070 | ||
1071 | /* skip cruft */ | |
1072 | while (index(", ;", *q)) | |
1073 | q++; | |
1074 | ||
1075 | /* decode priority name */ | |
1076 | pri = decode(buf, PriNames); | |
1077 | if (pri < 0) { | |
1078 | char xbuf[200]; | |
1079 | ||
1080 | (void) sprintf(xbuf, "unknown priority name \"%s\"", buf); | |
1081 | logerror(xbuf); | |
1082 | return; | |
1083 | } | |
1084 | ||
1085 | /* scan facilities */ | |
1086 | while (*p && !index("\t.;", *p)) { | |
64b300b4 EA |
1087 | for (bp = buf; *p && !index("\t,;.", *p); ) |
1088 | *bp++ = *p++; | |
1089 | *bp = '\0'; | |
1090 | if (*buf == '*') | |
1091 | for (i = 0; i < LOG_NFACILITIES; i++) | |
1092 | f->f_pmask[i] = pri; | |
1093 | else { | |
1094 | i = decode(buf, FacNames); | |
1095 | if (i < 0) { | |
1096 | char xbuf[200]; | |
1097 | ||
1098 | (void) sprintf(xbuf, "unknown facility name \"%s\"", buf); | |
1099 | logerror(xbuf); | |
1100 | return; | |
1101 | } | |
1102 | f->f_pmask[i >> 3] = pri; | |
1103 | } | |
1104 | while (*p == ',' || *p == ' ') | |
1105 | p++; | |
1106 | } | |
1107 | ||
1108 | p = q; | |
1109 | } | |
1110 | ||
1111 | /* skip to action part */ | |
1112 | while (*p == '\t') | |
1113 | p++; | |
1114 | ||
1115 | switch (*p) | |
1116 | { | |
1117 | case '@': | |
1118 | if (!InetInuse) | |
1119 | break; | |
1120 | (void) strcpy(f->f_un.f_forw.f_hname, ++p); | |
1121 | hp = gethostbyname(p); | |
1122 | if (hp == NULL) { | |
5b39dbe7 KB |
1123 | extern int h_errno, h_nerr; |
1124 | extern char **h_errlist; | |
64b300b4 | 1125 | |
5b39dbe7 KB |
1126 | logerror((u_int)h_errno < h_nerr ? |
1127 | h_errlist[h_errno] : "Unknown error"); | |
64b300b4 EA |
1128 | break; |
1129 | } | |
1130 | bzero((char *) &f->f_un.f_forw.f_addr, | |
1131 | sizeof f->f_un.f_forw.f_addr); | |
1132 | f->f_un.f_forw.f_addr.sin_family = AF_INET; | |
1133 | f->f_un.f_forw.f_addr.sin_port = LogPort; | |
1134 | bcopy(hp->h_addr, (char *) &f->f_un.f_forw.f_addr.sin_addr, hp->h_length); | |
64b300b4 EA |
1135 | f->f_type = F_FORW; |
1136 | break; | |
1137 | ||
1138 | case '/': | |
1139 | (void) strcpy(f->f_un.f_fname, p); | |
1140 | if ((f->f_file = open(p, O_WRONLY|O_APPEND)) < 0) { | |
e15840af | 1141 | f->f_file = F_UNUSED; |
64b300b4 EA |
1142 | logerror(p); |
1143 | break; | |
1144 | } | |
1145 | if (isatty(f->f_file)) { | |
1146 | f->f_type = F_TTY; | |
1147 | untty(); | |
a49a6aba | 1148 | } |
64b300b4 EA |
1149 | else |
1150 | f->f_type = F_FILE; | |
1151 | if (strcmp(p, ctty) == 0) | |
1152 | f->f_type = F_CONSOLE; | |
1153 | break; | |
1154 | ||
1155 | case '*': | |
1156 | f->f_type = F_WALL; | |
1157 | break; | |
1158 | ||
1159 | default: | |
1160 | for (i = 0; i < MAXUNAMES && *p; i++) { | |
1161 | for (q = p; *q && *q != ','; ) | |
1162 | q++; | |
1163 | (void) strncpy(f->f_un.f_uname[i], p, UNAMESZ); | |
1164 | if ((q - p) > UNAMESZ) | |
1165 | f->f_un.f_uname[i][UNAMESZ] = '\0'; | |
1166 | else | |
1167 | f->f_un.f_uname[i][q - p] = '\0'; | |
1168 | while (*q == ',' || *q == ' ') | |
1169 | q++; | |
1170 | p = q; | |
1171 | } | |
1172 | f->f_type = F_USERS; | |
1173 | break; | |
a49a6aba | 1174 | } |
64b300b4 EA |
1175 | } |
1176 | ||
1177 | ||
1178 | /* | |
1179 | * Decode a symbolic name to a numeric value | |
1180 | */ | |
1181 | ||
1182 | decode(name, codetab) | |
1183 | char *name; | |
1184 | struct code *codetab; | |
1185 | { | |
1186 | register struct code *c; | |
1187 | register char *p; | |
1188 | char buf[40]; | |
1189 | ||
1190 | if (isdigit(*name)) | |
1191 | return (atoi(name)); | |
1192 | ||
1193 | (void) strcpy(buf, name); | |
1194 | for (p = buf; *p; p++) | |
1195 | if (isupper(*p)) | |
1196 | *p = tolower(*p); | |
1197 | for (c = codetab; c->c_name; c++) | |
1198 | if (!strcmp(buf, c->c_name)) | |
1199 | return (c->c_val); | |
a49a6aba | 1200 | |
64b300b4 | 1201 | return (-1); |
a49a6aba | 1202 | } |