source: patches/sysklogd-1.4.1-fixes-1.patch@ 074ab96

clfs-1.2 clfs-2.1 clfs-3.0.0-systemd clfs-3.0.0-sysvinit systemd sysvinit
Last change on this file since 074ab96 was 69cde8d, checked in by Jim Gifford <clfs@…>, 19 years ago

Added: All patches needed for the book.
  • Property mode set to 100644
File size: 27.4 KB
RevLine 
[69cde8d]1Submitted By: Robert Connolly <robert at linuxfromscratch dot org> (ashes)
2Date: 2005-01-23
3Initial Package Version: 1.4.1
4Upstream Status: Not submitted
5Origin: http://www.infodrom.org/projects/sysklogd/cvs.php3
6Description: This patch is a cvs snapshot update as of 20050123.
7Minus the debain and CVS directories. See the CHANGES.
8
9diff -Naur sysklogd-1.4.1/CHANGES sysklogd-20050123/CHANGES
10--- sysklogd-1.4.1/CHANGES 2001-03-11 14:35:51.000000000 -0500
11+++ sysklogd-20050123/CHANGES 2005-01-15 14:14:21.000000000 -0500
12@@ -1,3 +1,42 @@
13+Version 1.4.2
14+
15+ . Dmitry V. Levin <ldv@altlinux.org>
16+ - Close file descriptor in FindSymbolFile() in ksym.c in order not to
17+ leak file descriptors.
18+ . Solar Designer <solar@openwall.com>
19+ - improve crunch_list()
20+ - Prevent potential buffer overflow in reading messages from the
21+ kernel log ringbuffer.
22+ - Ensure that "len" is not placed in a register, and that the
23+ endtty() signal handler is not installed too early which could
24+ cause a segmentation fault or worse.
25+ . Steve Grubb <linux_4ever@yahoo.com>
26+ - fix memory calculation in crunch_list()
27+ . Martin Schulze <joey@infodrom.org>
28+ - klogd will reconnect to the logger (mostly syslogd) after it went
29+ away
30+ - On heavily loaded system syslog will not spit out error messages
31+ anymore when recvfrom() results in EAGAIN
32+ - Makefile improvements
33+ - Local copy of module.h
34+ - Improved sysklogd.8
35+ - Always log with syslogd's timezone and locale
36+ - Remove trailing newline when forwarding messages
37+ . Jon Burgess <Jon_Burgess@eur.3com.com>
38+ - Moved the installation of the signal handler up a little bit so it
39+ guaranteed to be available when the child is forked, hence, fixing a
40+ race condition. This used to create problems with UML and fast
41+ machines.
42+ . Greg Trounson <gregt@maths.otago.ac.nz>
43+ - Improved README.linux
44+ . Ulf Härnhammar <Ulf.Harnhammar.9485@student.uu.se>
45+ - Bondary check for fscanf() in InitKsyms() and CheckMapVersion()
46+ . Colin Phipps <cph@cph.demon.co.uk>
47+ - Don't block on the network socket in case of package los
48+ . Dirk Mueller <mueller@kde.org>
49+ - Don't crash when filesize limit is reached (e.g. without LFS)
50+
51+
52 Version 1.4.1
53
54 . klogd will set the console log level only if `-c' is given on the
55@@ -30,3 +69,9 @@
56 . Olaf Kirch <okir@caldera.de>
57 - Remove Unix Domain Sockets and switch to Datagram Unix Sockets
58 . Several bugfixes and improvements, please refer to the .c files
59+
60+
61+Local variables:
62+mode: indented-text
63+fill-column: 72
64+End:
65diff -Naur sysklogd-1.4.1/klogd.8 sysklogd-20050123/klogd.8
66--- sysklogd-1.4.1/klogd.8 2001-03-11 14:35:51.000000000 -0500
67+++ sysklogd-20050123/klogd.8 2001-03-11 18:00:51.000000000 -0500
68@@ -321,7 +321,7 @@
69 .B klogd
70 to reload the module symbol information whenever a protection fault
71 is detected. Caution should be used before invoking the program in
72-\'paranoid\' mode. The stability of the kernel and the operating
73+\&'paranoid\&' mode. The stability of the kernel and the operating
74 environment is always under question when a protection fault occurs.
75 Since the klogd daemon must execute system calls in order to read the
76 module symbol information there is the possibility that the system may
77diff -Naur sysklogd-1.4.1/klogd.c sysklogd-20050123/klogd.c
78--- sysklogd-1.4.1/klogd.c 2001-03-11 14:40:10.000000000 -0500
79+++ sysklogd-20050123/klogd.c 2004-04-29 09:29:03.000000000 -0400
80@@ -243,6 +243,9 @@
81 * people have submitted patches: Troels Walsted Hansen
82 * <troels@thule.no>, Wolfgang Oertl <Wolfgang.Oertl@uibk.ac.at>
83 * and Thomas Roessler.
84+ * Thu Apr 29 15:24:07 2004: Solar Designer <solar@openwall.com>
85+ * Prevent potential buffer overflow in reading messages from the
86+ * kernel log rinbuffer.
87 */
88
89
90@@ -938,7 +941,7 @@
91 * messages into this fresh buffer.
92 */
93 memset(log_buffer, '\0', sizeof(log_buffer));
94- if ( (rdcnt = ksyslog(2, log_buffer, sizeof(log_buffer))) < 0 )
95+ if ( (rdcnt = ksyslog(2, log_buffer, sizeof(log_buffer)-1)) < 0 )
96 {
97 if ( errno == EINTR )
98 return;
99diff -Naur sysklogd-1.4.1/ksym.c sysklogd-20050123/ksym.c
100--- sysklogd-1.4.1/ksym.c 2000-09-12 17:53:31.000000000 -0400
101+++ sysklogd-20050123/ksym.c 2004-07-16 02:48:27.000000000 -0400
102@@ -105,6 +105,15 @@
103 *
104 * Tue Sep 12 23:48:12 CEST 2000: Martin Schulze <joey@infodrom.ffis.de>
105 * Close symbol file in InitKsyms() when an error occurred.
106+ *
107+ * Thu Apr 29 18:07:16 CEST 2004: Dmitry Levin <ldv@altlinux.org>
108+ * Close file descriptor in FindSymbolFile() in order not to leak
109+ * file descriptors.
110+ *
111+ * Fri Jul 16 08:32:49 CEST 2004: Ulf Härnhammar <Ulf.Harnhammar.9485@student.uu.se>
112+ * Added boundary check for fscanf() in InitKsyms() and
113+ * CheckMapVersion() to prevent an unintended crash when reading
114+ * an incorrect System.map.
115 */
116
117
118@@ -236,7 +245,7 @@
119 */
120 while ( !feof(sym_file) )
121 {
122- if ( fscanf(sym_file, "%lx %c %s\n", &address, &type, sym)
123+ if ( fscanf(sym_file, "%lx %c %511s\n", &address, &type, sym)
124 != 3 )
125 {
126 Syslog(LOG_ERR, "Error in symbol table input (#1).");
127@@ -344,6 +353,7 @@
128 if ( (sym_file = fopen(symfile, "r")) != (FILE *) 0 ) {
129 if (CheckMapVersion(symfile) == 1)
130 file = symfile;
131+ fclose (sym_file);
132 }
133 if (sym_file == (FILE *) 0 || file == (char *) 0) {
134 sprintf (symfile, "%s", *mf);
135@@ -352,6 +362,7 @@
136 if ( (sym_file = fopen(symfile, "r")) != (FILE *) 0 ) {
137 if (CheckMapVersion(symfile) == 1)
138 file = symfile;
139+ fclose (sym_file);
140 }
141 }
142
143@@ -533,7 +544,7 @@
144 version = 0;
145 while ( !feof(sym_file) && (version == 0) )
146 {
147- if ( fscanf(sym_file, "%lx %c %s\n", &address, \
148+ if ( fscanf(sym_file, "%lx %c %511s\n", &address, \
149 &type, sym) != 3 )
150 {
151 Syslog(LOG_ERR, "Error in symbol table input (#2).");
152@@ -899,3 +910,11 @@
153 return;
154 }
155 #endif
156+
157+/*
158+ * Local variables:
159+ * c-indent-level: 8
160+ * c-basic-offset: 8
161+ * tab-width: 8
162+ * End:
163+ */
164diff -Naur sysklogd-1.4.1/ksym_mod.c sysklogd-20050123/ksym_mod.c
165--- sysklogd-1.4.1/ksym_mod.c 2000-09-12 17:15:28.000000000 -0400
166+++ sysklogd-20050123/ksym_mod.c 2004-03-31 10:47:08.000000000 -0500
167@@ -78,6 +78,11 @@
168 *
169 * Tue Sep 12 23:11:13 CEST 2000: Martin Schulze <joey@infodrom.ffis.de>
170 * Changed llseek() to lseek64() in order to skip a libc warning.
171+ *
172+ * Wed Mar 31 17:35:01 CEST 2004: Martin Schulze <joey@infodrom.org>
173+ * Removed references to <linux/module.h> since it doesn't work
174+ * anymore with its recent content from Linux 2.4/2.6, created
175+ * module.h locally instead.
176 */
177
178
179@@ -89,11 +94,12 @@
180 #include <errno.h>
181 #include <sys/fcntl.h>
182 #include <sys/stat.h>
183+#include "module.h"
184 #if !defined(__GLIBC__)
185 #include <linux/time.h>
186-#include <linux/module.h>
187+#include <linux/linkage.h>
188 #else /* __GLIBC__ */
189-#include <linux/module.h>
190+#include <linux/linkage.h>
191 extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence));
192 extern int get_kernel_syms __P ((struct kernel_sym *__table));
193 #endif /* __GLIBC__ */
194@@ -107,7 +113,7 @@
195
196 #if !defined(__GLIBC__)
197 /*
198- * The following bit uses some kernel/library magic to product what
199+ * The following bit uses some kernel/library magic to produce what
200 * looks like a function call to user level code. This function is
201 * actually a system call in disguise. The purpose of the getsyms
202 * call is to return a current copy of the in-kernel symbol table.
203diff -Naur sysklogd-1.4.1/Makefile sysklogd-20050123/Makefile
204--- sysklogd-1.4.1/Makefile 1998-10-12 16:25:15.000000000 -0400
205+++ sysklogd-20050123/Makefile 2004-04-29 07:04:03.000000000 -0400
206@@ -4,12 +4,15 @@
207 #CFLAGS= -g -DSYSV -Wall
208 #LDFLAGS= -g
209 CFLAGS= $(RPM_OPT_FLAGS) -O3 -DSYSV -fomit-frame-pointer -Wall -fno-strength-reduce
210+# -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
211 LDFLAGS= -s
212
213 # Look where your install program is.
214 INSTALL = /usr/bin/install
215-BINDIR = /usr/sbin
216-MANDIR = /usr/man
217+
218+# Destination paths, set prefix=/opt if required
219+BINDIR = $(prefix)/usr/sbin
220+MANDIR = $(prefix)/usr/share/man
221
222 # There is one report that under an all ELF system there may be a need to
223 # explicilty link with libresolv.a. If linking syslogd fails you may wish
224@@ -34,8 +37,9 @@
225 # The following define establishes ownership for the man pages.
226 # Avery tells me that there is a difference between Debian and
227 # Slackware. Rather than choose sides I am leaving it up to the user.
228-MAN_OWNER = root
229-# MAN_OWNER = man
230+MAN_USER = root
231+MAN_GROUP = root
232+MAN_PERMS = 644
233
234 # The following define establishes the name of the pid file for the
235 # syslogd daemon. The library include file (paths.h) defines the
236@@ -116,7 +120,7 @@
237 ${INSTALL} -m 500 -s klogd ${BINDIR}/klogd
238
239 install_man:
240- ${INSTALL} -o ${MAN_OWNER} -g ${MAN_OWNER} -m 644 sysklogd.8 ${MANDIR}/man8/sysklogd.8
241- ${INSTALL} -o ${MAN_OWNER} -g ${MAN_OWNER} -m 644 syslogd.8 ${MANDIR}/man8/syslogd.8
242- ${INSTALL} -o ${MAN_OWNER} -g ${MAN_OWNER} -m 644 syslog.conf.5 ${MANDIR}/man5/syslog.conf.5
243- ${INSTALL} -o ${MAN_OWNER} -g ${MAN_OWNER} -m 644 klogd.8 ${MANDIR}/man8/klogd.8
244+ ${INSTALL} -o ${MAN_USER} -g ${MAN_GROUP} -m ${MAN_PERMS} sysklogd.8 ${MANDIR}/man8/sysklogd.8
245+ ${INSTALL} -o ${MAN_USER} -g ${MAN_GROUP} -m ${MAN_PERMS} syslogd.8 ${MANDIR}/man8/syslogd.8
246+ ${INSTALL} -o ${MAN_USER} -g ${MAN_GROUP} -m ${MAN_PERMS} syslog.conf.5 ${MANDIR}/man5/syslog.conf.5
247+ ${INSTALL} -o ${MAN_USER} -g ${MAN_GROUP} -m ${MAN_PERMS} klogd.8 ${MANDIR}/man8/klogd.8
248diff -Naur sysklogd-1.4.1/module.h sysklogd-20050123/module.h
249--- sysklogd-1.4.1/module.h 1969-12-31 19:00:00.000000000 -0500
250+++ sysklogd-20050123/module.h 2004-07-27 07:36:10.000000000 -0400
251@@ -0,0 +1,90 @@
252+/*
253+ module.h - Miscellaneous module definitions
254+ Copyright (c) 1996 Richard Henderson <rth@tamu.edu>
255+ Copyright (c) 2004 Martin Schulze <joey@infodrom.org>
256+
257+ This file is part of the sysklogd package.
258+
259+ This program is free software; you can redistribute it and/or modify
260+ it under the terms of the GNU General Public License as published by
261+ the Free Software Foundation; either version 2 of the License, or
262+ (at your option) any later version.
263+
264+ This program is distributed in the hope that it will be useful,
265+ but WITHOUT ANY WARRANTY; without even the implied warranty of
266+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
267+ GNU General Public License for more details.
268+
269+ You should have received a copy of the GNU General Public License
270+ along with this program; if not, write to the Free Software
271+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
272+*/
273+
274+/* ChangeLog:
275+ *
276+ * Wed Mar 31 17:35:01 CEST 2004: Martin Schulze <joey@infodrom.org>
277+ * Created local copy of module.h based on the content of Linux
278+ * 2.2 since <linux/module.h> doesn't work anymore with its
279+ * recent content from Linux 2.4/2.6.
280+ */
281+
282+#include <asm/atomic.h>
283+
284+#define MODULE_NAME_LEN 60
285+
286+struct kernel_sym
287+{
288+ unsigned long value;
289+ char name[MODULE_NAME_LEN];
290+};
291+
292+
293+struct list_head {
294+ struct list_head *next, *prev;
295+};
296+
297+
298+struct module_info
299+{
300+ unsigned long addr;
301+ unsigned long size;
302+ unsigned long flags;
303+ long usecount;
304+};
305+
306+
307+struct module
308+{
309+ unsigned long size_of_struct; /* == sizeof(module) */
310+ struct module *next;
311+ const char *name;
312+ unsigned long size;
313+
314+ union
315+ {
316+ int usecount;
317+ long pad;
318+ } uc; /* Needs to keep its size - so says rth */
319+
320+ unsigned long flags; /* AUTOCLEAN et al */
321+
322+ unsigned nsyms;
323+ unsigned ndeps;
324+
325+ struct module_symbol *syms;
326+ struct module_ref *deps;
327+ struct module_ref *refs;
328+ int (*init)(void);
329+ void (*cleanup)(void);
330+ const struct exception_table_entry *ex_table_start;
331+ const struct exception_table_entry *ex_table_end;
332+#ifdef __alpha__
333+ unsigned long gp;
334+#endif
335+ /* Members past this point are extensions to the basic
336+ module support and are optional. Use mod_opt_member()
337+ to examine them. */
338+ const struct module_persist *persist_start;
339+ const struct module_persist *persist_end;
340+ int (*can_unload)(void);
341+};
342diff -Naur sysklogd-1.4.1/pidfile.c sysklogd-20050123/pidfile.c
343--- sysklogd-1.4.1/pidfile.c 1998-02-10 17:37:12.000000000 -0500
344+++ sysklogd-20050123/pidfile.c 2003-09-27 22:38:18.000000000 -0400
345@@ -87,7 +87,7 @@
346 int fd;
347 int pid;
348
349- if ( ((fd = open(pidfile, O_RDWR|O_CREAT, 0644)) == -1)
350+ if ( ((fd = open(pidfile, O_RDWR|O_CREAT|O_TRUNC, 0644)) == -1)
351 || ((f = fdopen(fd, "r+")) == NULL) ) {
352 fprintf(stderr, "Can't open or create %s.\n", pidfile);
353 return 0;
354diff -Naur sysklogd-1.4.1/README.1st sysklogd-20050123/README.1st
355--- sysklogd-1.4.1/README.1st 1997-06-02 13:21:39.000000000 -0400
356+++ sysklogd-20050123/README.1st 2003-09-04 09:22:23.000000000 -0400
357@@ -1,5 +1,5 @@
358-Very important information before using version 1.3
359----------------------------------------------------
360+Important information
361+---------------------
362
363 The included version of syslogd behaves in a slightly different manner
364 to the one in former releases. Please review the following important
365@@ -63,3 +63,10 @@
366 these scripts should remove all old .pid files found in /var/run.
367 This will insure that klogd and syslogd start properly even if prior
368 executions have been terminated harshly.
369+
370+* Large file support, i.e. support to write to log files that are
371+ larger than 2 GB is not part of syslogd, but a matter of the Glibc
372+ emitting different system calls to the kernel interface. To support
373+ large files you'll have to compile syslogd with the compiler defines
374+ -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE so that glibc adjusts the
375+ system calls.
376diff -Naur sysklogd-1.4.1/README.linux sysklogd-20050123/README.linux
377--- sysklogd-1.4.1/README.linux 1999-01-18 19:09:12.000000000 -0500
378+++ sysklogd-20050123/README.linux 2004-07-09 13:22:29.000000000 -0400
379@@ -40,12 +40,17 @@
380 a useful addition to the software gene pool.
381
382 There is a mailing list covering this package and syslog in general.
383-The lists address is sysklogd@Infodrom.North.DE . To subscribe send a
384-mail to Majordomo@Infodrom.North.DE with a line "subscribe sysklogd"
385+The lists address is infodrom-sysklogd@lists.infodrom.org . To subscribe send a
386+mail to majordomo@lists.infodrom.org with a line "subscribe infodrom-sysklogd"
387 in the message body.
388
389-New versions of this package will be available at Joey's ftp server.
390-ftp://ftp.infodrom.north.de/pub/people/joey/sysklogd/
391+A second mailing list exists as infodrom-sysklogd-cvs@lists.infodrom.org. Only
392+CVS messages and diffs are distributed there. Whenever new code is added to
393+sysklogd, CVS generates a mail from these changes which will be sent to
394+this list. Discussions will take place on the first list.
395+
396+The latest version of this software can be found at:
397+http://www.infodrom.org/projects/sysklogd/download.php3
398
399 Best regards,
400
401@@ -67,6 +72,6 @@
402
403 Martin Schulze
404 Infodrom Oldenburg
405-joey@linux.de
406+joey@infodrom.org
407
408-And a host of bug reporters whose contributions cannot be underestimated.
409+And a number of bug reporters whose contributions cannot be underestimated.
410diff -Naur sysklogd-1.4.1/sysklogd.8 sysklogd-20050123/sysklogd.8
411--- sysklogd-1.4.1/sysklogd.8 2001-03-11 14:35:51.000000000 -0500
412+++ sysklogd-20050123/sysklogd.8 2004-07-09 13:33:32.000000000 -0400
413@@ -84,7 +84,7 @@
414 .B MAXFUNIX
415 within the syslogd.c source file. An example for a chroot() daemon is
416 described by the people from OpenBSD at
417-http://www.psionic.com/papers/dns.html.
418+<http://www.guides.sk/psionic/dns/>.
419 .TP
420 .B "\-d"
421 Turns on debug mode. Using this the daemon will not proceed a
422@@ -117,7 +117,8 @@
423 between two \fI-- MARK --\fR lines is 20 minutes. This can be changed
424 with this option. Setting the
425 .I interval
426-to zero turns it off entirely.
427+to zero turns it off entirely. Depending on other log messages
428+generated these lines may not be written consecutively.
429 .TP
430 .B "\-n"
431 Avoid auto-backgrounding. This is needed especially if the
432@@ -364,8 +365,10 @@
433
434 To avoid this in further times no messages that were received from a
435 remote host are sent out to another (or the same) remote host
436-anymore. If there are scenarios where this doesn't make sense, please
437-drop me (Joey) a line.
438+anymore. If you experience are setup in which this doesn't make
439+sense, please use the
440+.B \-h
441+commandline switch.
442
443 If the remote host is located in the same domain as the host,
444 .B syslogd
445diff -Naur sysklogd-1.4.1/syslog.c sysklogd-20050123/syslog.c
446--- sysklogd-1.4.1/syslog.c 2001-03-11 14:35:51.000000000 -0500
447+++ sysklogd-20050123/syslog.c 2003-08-27 11:56:01.000000000 -0400
448@@ -47,6 +47,9 @@
449 * Sun Mar 11 20:23:44 CET 2001: Martin Schulze <joey@infodrom.ffis.de>
450 * Use SOCK_DGRAM for loggin, renables it to work.
451 *
452+ * Wed Aug 27 17:48:16 CEST 2003: Martin Schulze <joey@Infodrom.org>
453+ * Improved patch by Michael Pomraning <mjp@securepipe.com> to
454+ * reconnect klogd to the logger after it went away.
455 */
456
457 #include <sys/types.h>
458@@ -98,6 +101,7 @@
459 register char *p;
460 time_t now;
461 int fd, saved_errno;
462+ int result;
463 char tbuf[2048], fmt_cpy[1024], *stdp = (char *) 0;
464
465 saved_errno = errno;
466@@ -167,7 +171,16 @@
467 }
468
469 /* output the message to the local logger */
470- if (write(LogFile, tbuf, cnt + 1) >= 0 || !(LogStat&LOG_CONS))
471+ result = write(LogFile, tbuf, cnt + 1);
472+
473+ if (result == -1
474+ && (errno == ECONNRESET || errno == ENOTCONN || errno == ECONNREFUSED)) {
475+ closelog();
476+ openlog(LogTag, LogStat | LOG_NDELAY, LogFacility);
477+ result = write(LogFile, tbuf, cnt + 1);
478+ }
479+
480+ if (result >= 0 || !(LogStat&LOG_CONS))
481 return;
482
483 /*
484diff -Naur sysklogd-1.4.1/syslog.conf.5 sysklogd-20050123/syslog.conf.5
485--- sysklogd-1.4.1/syslog.conf.5 1999-08-21 06:49:14.000000000 -0400
486+++ sysklogd-20050123/syslog.conf.5 2003-05-22 15:31:20.000000000 -0400
487@@ -64,7 +64,7 @@
488 The
489 .I facility
490 is one of the following keywords:
491-.BR auth ", " authpriv ", " cron ", " daemon ", " kern ", " lpr ", "
492+.BR auth ", " authpriv ", " cron ", " daemon ", " ftp ", " kern ", " lpr ", "
493 .BR mail ", " mark ", " news ", " security " (same as " auth "), "
494 .BR syslog ", " user ", " uucp " and " local0 " through " local7 .
495 The keyword
496@@ -121,12 +121,21 @@
497
498 This
499 .BR syslogd (8)
500-has a syntax extension to the original BSD source, that makes its use
501+has a syntax extension to the original BSD source, which makes its use
502 more intuitively. You may precede every priority with an equation sign
503-(``='') to specify only this single priority and not any of the
504-above. You may also (both is valid, too) precede the priority with an
505-exclamation mark (``!'') to ignore all that priorities, either exact
506-this one or this and any higher priority. If you use both extensions
507+(``='') to specify that
508+.B syslogd
509+should only refer to this single priority and not this priority and
510+all higher priorities.
511+
512+You may also precide the priority with an exclamation mark (``!'') if
513+you want
514+.B syslogd
515+to ignore this priority and all higher priorities.
516+You may even use both, the exclamation mark and the equation sign if
517+you want
518+.B syslogd
519+to ignore only this single priority. If you use both extensions
520 than the exclamation mark must occur before the equation sign, just
521 use it intuitively.
522
523@@ -300,7 +309,7 @@
524 .B syslogd
525 log all messages that come with either the
526 .BR info " or the " notice
527-facility into the file
528+priority into the file
529 .IR /var/log/messages ,
530 except for all messages that use the
531 .B mail
532diff -Naur sysklogd-1.4.1/syslogd.c sysklogd-20050123/syslogd.c
533--- sysklogd-1.4.1/syslogd.c 2001-03-11 14:40:10.000000000 -0500
534+++ sysklogd-20050123/syslogd.c 2005-01-15 14:13:08.000000000 -0500
535@@ -441,6 +441,39 @@
536 * Don't return a closed fd if `-a' is called with a wrong path.
537 * Thanks to Bill Nottingham <notting@redhat.com> for providing
538 * a patch.
539+ * Thu Apr 13 05:08:10 CEST 2001: Jon Burgess <Jon_Burgess@eur.3com.com>
540+ * Moved the installation of the signal handler up a little bit
541+ * so it guaranteed to be available when the child is forked,
542+ * hence, fixing a race condition. This used to create problems
543+ * with UML and fast machines.
544+ *
545+ * Sat Apr 17 18:03:05 CEST 2004: Steve Grubb <linux_4ever@yahoo.com>
546+ * Correct memory allocation for for commandline arguments in
547+ * crunch_list().
548+ *
549+ * Thu Apr 29 12:38:39 CEST 2004: Solar Designer <solar@openwall.com>
550+ * Applied Openwall paranoia patches to improve crunch_list().
551+ *
552+ * Tue May 4 16:47:30 CEST 2004: Solar Designer <solar@openwall.com>
553+ * Ensure that "len" is not placed in a register, and that the
554+ * endtty() signal handler is not installed too early which could
555+ * cause a segmentation fault or worse.
556+ *
557+ * Tue May 4 16:52:01 CEST 2004: Solar Designer <solar@openwall.com>
558+ * Adjust the size of a variable to prevent a buffer overflow
559+ * should _PATH_DEV ever contain something different than "/dev/".
560+ *
561+ * Tue Nov 2 20:28:23 CET 2004: Colin Phipps <cph@cph.demon.co.uk>
562+ * Don't block on the network socket, in case a packet gets lost
563+ * between select and recv.
564+ *
565+ * Sun Nov 7 12:28:47 CET 2004: Martin Schulze <joey@infodrom.org>
566+ * Discard any timestamp information found in received syslog
567+ * messages. This will affect local messages sent from a
568+ * different timezone.
569+ *
570+ * Sun Nov 7 13:47:00 CET 2004: Martin Schulze <joey@infodrom.org>
571+ * Remove trailing newline when forwarding messages.
572 */
573
574
575@@ -890,11 +923,11 @@
576 dprintf("Checking pidfile.\n");
577 if (!check_pid(PidFile))
578 {
579+ signal (SIGTERM, doexit);
580 if (fork()) {
581 /*
582 * Parent process
583 */
584- signal (SIGTERM, doexit);
585 sleep(300);
586 /*
587 * Not reached unless something major went wrong. 5
588@@ -992,6 +1025,7 @@
589 (void) signal(SIGCHLD, reapchild);
590 (void) signal(SIGALRM, domark);
591 (void) signal(SIGUSR1, Debug ? debug_switch : SIG_IGN);
592+ (void) signal(SIGXFSZ, SIG_IGN);
593 (void) alarm(TIMERINTVL);
594
595 /* Create a partial message table for all file descriptors. */
596@@ -1141,13 +1175,13 @@
597 */
598 printchopped(from, line, \
599 i + 2, finet);
600- } else if (i < 0 && errno != EINTR) {
601+ } else if (i < 0 && errno != EINTR && errno != EAGAIN) {
602 dprintf("INET socket error: %d = %s.\n", \
603 errno, strerror(errno));
604 logerror("recvfrom inet");
605 /* should be harmless now that we set
606 * BSDCOMPAT on the socket */
607- sleep(10);
608+ sleep(1);
609 }
610 }
611 #endif
612@@ -1216,6 +1250,7 @@
613 {
614 int fd, on = 1;
615 struct sockaddr_in sin;
616+ int sockflags;
617
618 fd = socket(AF_INET, SOCK_DGRAM, 0);
619 if (fd < 0) {
620@@ -1241,6 +1276,24 @@
621 close(fd);
622 return -1;
623 }
624+ /* We must not block on the network socket, in case a packet
625+ * gets lost between select and recv, otherise the process
626+ * will stall until the timeout, and other processes trying to
627+ * log will also stall.
628+ */
629+ if ((sockflags = fcntl(fd, F_GETFL)) != -1) {
630+ sockflags |= O_NONBLOCK;
631+ /*
632+ * SETFL could fail too, so get it caught by the subsequent
633+ * error check.
634+ */
635+ sockflags = fcntl(fd, F_SETFL, sockflags);
636+ }
637+ if (sockflags == -1) {
638+ logerror("fcntl(O_NONBLOCK), suspending inet");
639+ close(fd);
640+ return -1;
641+ }
642 if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) < 0) {
643 logerror("bind, suspending inet");
644 close(fd);
645@@ -1254,30 +1307,26 @@
646 crunch_list(list)
647 char *list;
648 {
649- int count, i;
650+ int i, m, n;
651 char *p, *q;
652 char **result = NULL;
653
654 p = list;
655
656 /* strip off trailing delimiters */
657- while (p[strlen(p)-1] == LIST_DELIMITER) {
658- count--;
659+ while (*p && p[strlen(p)-1] == LIST_DELIMITER)
660 p[strlen(p)-1] = '\0';
661- }
662 /* cut off leading delimiters */
663- while (p[0] == LIST_DELIMITER) {
664- count--;
665+ while (p[0] == LIST_DELIMITER)
666 p++;
667- }
668
669- /* count delimiters to calculate elements */
670- for (count=i=0; p[i]; i++)
671- if (p[i] == LIST_DELIMITER) count++;
672+ /* count delimiters to calculate the number of elements */
673+ for (n = i = 0; p[i]; i++)
674+ if (p[i] == LIST_DELIMITER) n++;
675
676- if ((result = (char **)malloc(sizeof(char *) * count+2)) == NULL) {
677+ if ((result = (char **)malloc(sizeof(char *) * (n + 2))) == NULL) {
678 printf ("Sorry, can't get enough memory, exiting.\n");
679- exit(0);
680+ exit(1);
681 }
682
683 /*
684@@ -1285,30 +1334,28 @@
685 * characters are different from any delimiters,
686 * so we don't have to care about this.
687 */
688- count = 0;
689- while ((q=strchr(p, LIST_DELIMITER))) {
690- result[count] = (char *) malloc((q - p + 1) * sizeof(char));
691- if (result[count] == NULL) {
692+ m = 0;
693+ while ((q = strchr(p, LIST_DELIMITER)) && m < n) {
694+ result[m] = (char *) malloc((q - p + 1) * sizeof(char));
695+ if (result[m] == NULL) {
696 printf ("Sorry, can't get enough memory, exiting.\n");
697- exit(0);
698+ exit(1);
699 }
700- strncpy(result[count], p, q - p);
701- result[count][q - p] = '\0';
702+ memcpy(result[m], p, q - p);
703+ result[m][q - p] = '\0';
704 p = q; p++;
705- count++;
706+ m++;
707 }
708- if ((result[count] = \
709- (char *)malloc(sizeof(char) * strlen(p) + 1)) == NULL) {
710+ if ((result[m] = strdup(p)) == NULL) {
711 printf ("Sorry, can't get enough memory, exiting.\n");
712- exit(0);
713+ exit(1);
714 }
715- strcpy(result[count],p);
716- result[++count] = NULL;
717+ result[++m] = NULL;
718
719 #if 0
720- count=0;
721- while (result[count])
722- dprintf ("#%d: %s\n", count, StripDomains[count++]);
723+ m = 0;
724+ while (result[m])
725+ dprintf ("#%d: %s\n", m, result[m++]);
726 #endif
727 return result;
728 }
729@@ -1548,21 +1595,25 @@
730
731 /*
732 * Check to see if msg looks non-standard.
733+ *
734+ * A message looks like
735+ * Nov 17 11:42:33 CRON[
736+ * 01234567890123456
737+ * ^ ^ ^ ^ ^
738+ *
739+ * Remote messages are not accompanied by a timestamp.
740+ * Local messages are accompanied by a timestamp (program's timezone)
741 */
742 msglen = strlen(msg);
743- if (msglen < 16 || msg[3] != ' ' || msg[6] != ' ' ||
744- msg[9] != ':' || msg[12] != ':' || msg[15] != ' ')
745- flags |= ADDDATE;
746-
747- (void) time(&now);
748- if (flags & ADDDATE)
749- timestamp = ctime(&now) + 4;
750- else {
751- timestamp = msg;
752+ if (!(msglen < 16 || msg[3] != ' ' || msg[6] != ' ' ||
753+ msg[9] != ':' || msg[12] != ':' || msg[15] != ' ')) {
754 msg += 16;
755 msglen -= 16;
756 }
757
758+ (void) time(&now);
759+ timestamp = ctime(&now) + 4;
760+
761 /* extract facility and priority level */
762 if (flags & MARK)
763 fac = LOG_NFACILITIES;
764@@ -1771,7 +1822,7 @@
765 dprintf("Not sending message to remote.\n");
766 else {
767 f->f_time = now;
768- (void) snprintf(line, sizeof(line), "<%d>%s\n", f->f_prevpri, \
769+ (void) snprintf(line, sizeof(line), "<%d>%s", f->f_prevpri, \
770 (char *) iov[4].iov_base);
771 l = strlen(line);
772 if (l > MAXLINE)
773@@ -1815,7 +1866,7 @@
774 v->iov_len = 1;
775 }
776 again:
777- /* f->f_file == -1 is an indicator that the we couldn't
778+ /* f->f_file == -1 is an indicator that we couldn't
779 open the file at startup. */
780 if (f->f_file == -1)
781 break;
782@@ -1852,7 +1903,7 @@
783 errno = e;
784 logerror(f->f_un.f_fname);
785 }
786- } else if (f->f_flags & SYNC_FILE)
787+ } else if (f->f_type == F_FILE && (f->f_flags & SYNC_FILE))
788 (void) fsync(f->f_file);
789 break;
790
791@@ -1891,7 +1942,7 @@
792 register struct filed *f;
793 struct iovec *iov;
794 {
795- char p[6 + UNAMESZ];
796+ char p[sizeof (_PATH_DEV) + UNAMESZ];
797 register int i;
798 int ttyf, len;
799 static int reenter = 0;
800@@ -1899,6 +1950,8 @@
801 struct utmp *uptr;
802 char greetings[200];
803
804+ (void) &len;
805+
806 if (reenter++)
807 return;
808
809@@ -1913,7 +1966,6 @@
810 if (fork() == 0) {
811 (void) signal(SIGTERM, SIG_DFL);
812 (void) alarm(0);
813- (void) signal(SIGALRM, endtty);
814 #ifndef SYSV
815 (void) signal(SIGTTOU, SIG_IGN);
816 (void) sigsetmask(0);
817@@ -1929,7 +1981,7 @@
818 /* is this slot used? */
819 if (ut.ut_name[0] == '\0')
820 continue;
821- if (ut.ut_type == LOGIN_PROCESS)
822+ if (ut.ut_type != USER_PROCESS)
823 continue;
824 if (!(strcmp (ut.ut_name,"LOGIN"))) /* paranoia */
825 continue;
826@@ -1959,6 +2011,7 @@
827 iov[1].iov_len = 0;
828 }
829 if (setjmp(ttybuf) == 0) {
830+ (void) signal(SIGALRM, endtty);
831 (void) alarm(15);
832 /* open the terminal */
833 ttyf = open(p, O_WRONLY|O_NOCTTY);
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