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syslogd/sysklogd-1.4.1.dif

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---
Makefile | 24 ++++++++++++----------
klogd.c | 57 ++++++++++++++++++++++++++++++++++++++++------------
pidfile.c | 10 ++++-----
resolve.c | 21 ++++++++++++++++---
sample-s390.conf | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
sample.conf | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
syslog.c | 7 +++++-
syslogd.c | 51 ++++++++++++++++++++++++++++------------------
8 files changed, 238 insertions(+), 52 deletions(-)
--- Makefile
+++ Makefile 2022-10-19 09:50:35.677760471 +0000
@@ -17,20 +17,23 @@
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+# For newer Kernel we have 16k buffer size
+LOG_BUFFER_SIZE = -DLOG_BUFFER_SIZE=16384
+
CC= gcc
#SKFLAGS= -g -DSYSV -Wall
#LDFLAGS= -g
-SKFLAGS= $(RPM_OPT_FLAGS) -DINET6 -O3 -DSYSV -fomit-frame-pointer -Wall -fno-strength-reduce -I.
+SKFLAGS= $(RPM_OPT_FLAGS) -D_GNU_SOURCE -DINET6 -DSYSV -Wall $(LOG_BUFFER_SIZE) -fPIE -I.
# -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
# -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE
# $(shell getconf LFS_SKFLAGS)
-LDFLAGS= -s
+LDFLAGS= -pie
# Look where your install program is.
INSTALL = /usr/bin/install
# Destination paths, set prefix=/opt if required
-BINDIR = $(prefix)/usr/sbin
+BINDIR = $(prefix)/sbin
MANDIR = $(prefix)/usr/share/man
# There is one report that under an all ELF system there may be a need to
@@ -47,7 +50,7 @@ LIBS += $(shell pkg-config libsystemd --
# Define the following to impart start-up delay in klogd. This is
# useful if klogd is started simultaneously or in close-proximity to syslogd.
-# KLOGD_START_DELAY = -DKLOGD_DELAY=5
+KLOGD_START_DELAY = -DKLOGD_DELAY=5
# The following define determines whether the package adheres to the
# file system standard.
@@ -127,14 +130,15 @@ clobber: clean
rm -f syslogd klogd ksym syslog_tst oops_test TAGS tsyslogd tklogd
install_exec: syslogd klogd
- ${INSTALL} -m 500 -s syslogd ${BINDIR}/syslogd
- ${INSTALL} -m 500 -s klogd ${BINDIR}/klogd
+ ${INSTALL} -m 500 -s syslogd ${DESTDIR}${BINDIR}/syslogd
+ ${INSTALL} -m 500 -s klogd ${DESTDIR}${BINDIR}/klogd
+ ${INSTALL} -m 644 sample.conf ${DESTDIR}/etc/syslog.conf
install_man:
- ${INSTALL} -o ${MAN_USER} -g ${MAN_GROUP} -m ${MAN_PERMS} sysklogd.8 ${MANDIR}/man8/sysklogd.8
- ${INSTALL} -o ${MAN_USER} -g ${MAN_GROUP} -m ${MAN_PERMS} syslogd.8 ${MANDIR}/man8/syslogd.8
- ${INSTALL} -o ${MAN_USER} -g ${MAN_GROUP} -m ${MAN_PERMS} syslog.conf.5 ${MANDIR}/man5/syslog.conf.5
- ${INSTALL} -o ${MAN_USER} -g ${MAN_GROUP} -m ${MAN_PERMS} klogd.8 ${MANDIR}/man8/klogd.8
+ ${INSTALL} -m ${MAN_PERMS} sysklogd.8 ${DESTDIR}${MANDIR}/man8/sysklogd.8
+ ${INSTALL} -m ${MAN_PERMS} syslogd.8 ${DESTDIR}${MANDIR}/man8/syslogd.8
+ ${INSTALL} -m ${MAN_PERMS} syslog.conf.5 ${DESTDIR}${MANDIR}/man5/syslog.conf.5
+ ${INSTALL} -m ${MAN_PERMS} klogd.8 ${DESTDIR}${MANDIR}/man8/klogd.8
obj-m += oops.o
--- klogd.c
+++ klogd.c 2022-10-19 09:50:35.677760471 +0000
@@ -289,15 +289,21 @@ _syscall3(int,ksyslog,int, type, char *,
#include <sys/utsname.h>
-#define LOG_BUFFER_SIZE 4096
+#ifndef _PATH_KLOG
+# define _PATH_KLOG "/proc/kmsg"
+#endif
+
+#ifndef LOG_BUFFER_SIZE
+# define LOG_BUFFER_SIZE 4096
+#endif
#define LOG_LINE_LENGTH 1000
#ifndef TESTING
-#if defined(FSSTND)
+# if defined(FSSTND)
static char *PidFile = _PATH_VARRUN "klogd.pid";
-#else
+# else
static char *PidFile = "/etc/klogd.pid";
-#endif
+# endif
#endif
#include "fortify.h"
@@ -311,6 +317,8 @@ static int kmsg,
static int use_syscall = 0,
one_shot = 0,
+ ring_buf = 0,
+ ring_buf_clear = 0,
symbol_lookup = 1,
no_fork = 0; /* don't fork - don't run in daemon mode */
@@ -891,8 +899,7 @@ static void LogLine(char *ptr, int len)
value = strtoul(sym_start+1, (char **) 0, 16);
*(line-1) = '>'; /* put back delim */
- symbol = LookupSymbol(value, &sym);
- if ( !symbol_lookup || symbol == (char *) 0 )
+ if ( !symbol_lookup || (symbol = LookupSymbol(value, &sym)) == (char *) 0 )
{
parse_state = PARSING_TEXT;
break;
@@ -933,7 +940,7 @@ static void LogLine(char *ptr, int len)
static void LogKernelLine(void)
{
- auto int rdcnt;
+ auto int rdcnt, lvl;
/*
* Zero-fill the log buffer. This should cure a multitude of
@@ -942,6 +949,11 @@ static void LogKernelLine(void)
* messages into this fresh buffer.
*/
memset(log_buffer, '\0', log_buf_size);
+ lvl = 2;
+ if (one_shot) {
+ if (ring_buf) lvl = 3;
+ if (ring_buf_clear) lvl = 4;
+ }
if ( (rdcnt = ksyslog(2, log_buffer, log_buf_size-1)) < 0 )
{
if ( errno == EINTR )
@@ -1051,10 +1063,15 @@ int main(argc, argv)
#ifndef TESTING
pid_t ppid = getpid();
- chdir ("/");
+ if (chdir ("/") < 0) {
+ fprintf(stderr,
+ "klogd: Can not change to root directory: %s\n",
+ strerror(errno));
+ exit(1);
+ }
#endif
/* Parse the command-line. */
- while ((ch = getopt(argc, argv, "c:df:iIk:nopsvx2")) != EOF)
+ while ((ch = getopt(argc, argv, "c:df:iIk:nopsvx2rR")) != EOF)
switch((char)ch)
{
case '2': /* Print lines with symbols twice. */
@@ -1085,6 +1102,14 @@ int main(argc, argv)
case 'o': /* One-shot mode. */
one_shot = 1;
break;
+ case 'r': /* One-shot mode. */
+ one_shot = 1;
+ ring_buf = 1;
+ break;
+ case 'R': /* One-shot mode. */
+ one_shot = 1;
+ ring_buf_clear = 1;
+ break;
case 'p':
SetParanoiaLevel(1); /* Load symbols on oops. */
break;
@@ -1229,8 +1254,11 @@ int main(argc, argv)
if ( one_shot )
{
if (symbol_lookup) {
- InitKsyms(symfile);
- InitMsyms();
+ /* Both functions return 1 at success and 0 otherwise */
+ symbol_lookup = InitKsyms(symfile);
+ symbol_lookup |= InitMsyms();
+ if (!symbol_lookup)
+ Syslog(LOG_WARNING, "Cannot build symbol table - disabling symbol lookups");
}
if ( (logsrc = GetKernelLogSrc()) == kernel )
LogKernelLine();
@@ -1245,8 +1273,11 @@ int main(argc, argv)
#endif
logsrc = GetKernelLogSrc();
if (symbol_lookup) {
- InitKsyms(symfile);
- InitMsyms();
+ /* Both functions return 1 at success and 0 otherwise */
+ symbol_lookup = InitKsyms(symfile);
+ symbol_lookup |= InitMsyms();
+ if (!symbol_lookup)
+ Syslog(LOG_WARNING, "Cannot build symbol table - disabling symbol lookups");
}
#ifndef TESTING
--- pidfile.c
+++ pidfile.c 2022-10-19 09:50:35.677760471 +0000
@@ -46,11 +46,11 @@
int read_pid (char *pidfile)
{
FILE *f;
- int pid;
+ int pid = 0;
if (!(f=fopen(pidfile,"r")))
return 0;
- fscanf(f,"%d", &pid);
+ (void)fscanf(f,"%d", &pid);
fclose(f);
return pid;
}
@@ -90,7 +90,7 @@ int write_pid (char *pidfile)
{
FILE *f;
int fd;
- int pid;
+ int pid = 0;
#if defined(USE_FCNTL) && (USE_FCNTL != 0)
struct flock lck;
#endif
@@ -115,14 +115,14 @@ int write_pid (char *pidfile)
}
#else
if (flock(fd, LOCK_EX|LOCK_NB) == -1) {
- fscanf(f, "%d", &pid);
+ (void)fscanf(f, "%d", &pid);
fclose(f);
fprintf(stderr, "Can't lock, lock is held by pid %d.\n", pid);
return 0;
}
#endif
- pid = getpid();
+ pid = (int)getpid();
if (!fprintf(f,"%d\n", pid)) {
fprintf(stderr, "Can't write pid , %s.\n", strerror(errno));
close(fd);
--- resolve.c
+++ resolve.c 2022-10-19 09:50:35.677760471 +0000
@@ -13,6 +13,7 @@
#include <stdlib.h>
#include <signal.h>
#include <unistd.h>
+#include <errno.h>
#if defined(__GLIBC__)
#define dprintf mydprintf
@@ -208,7 +209,7 @@ do_query(int fd, int family, const char
{
struct sockaddr_storage ss;
struct addrinfo hints, *res;
- int r;
+ int r, c;
memset(&hints, 0, sizeof(hints));
hints.ai_socktype = SOCK_DGRAM;
@@ -244,6 +245,20 @@ do_query(int fd, int family, const char
} else {
memcpy(&ss, res->ai_addr, res->ai_addrlen);
}
- write(fd, &ss, sizeof(ss));
- exit(0);
+
+ c = 100;
+ do {
+ if ((r = write(fd, &ss, sizeof(ss))) < 0) {
+ if ((errno != EAGAIN) && (errno != EINTR)) {
+ dprintf("failed to write: %s\n", strerror(errno));
+ exit(1);
+ }
+ usleep(50000);
+ }
+ } while ((r < 0) && (c-- > 0));
+
+ if (r >= 0)
+ exit(0);
+ dprintf("failed to write: %s\n", strerror(errno));
+ exit(1);
}
--- sample-s390.conf
+++ sample-s390.conf 2022-10-19 09:50:35.677760471 +0000
@@ -0,0 +1,60 @@
+# /etc/syslog.conf - Configuration file for syslogd(8)
+#
+# For info about the format of this file, see "man syslog.conf".
+#
+
+#
+#
+# print most on /dev/console and on the xconsole pipe
+#
+kern.*;*.warning;news.emerg;mail.alert;authpriv.none /dev/console
+kern.*;*.warning;news.err;mail.err;authpriv.none |/dev/xconsole
+*.emerg *
+
+# enable this, if you want that root is informed
+# immediately, e.g. of logins
+#*.alert root
+
+
+#
+# all email-messages in one file
+#
+mail.* -/var/log/mail
+mail.info -/var/log/mail.info
+mail.warning -/var/log/mail.warn
+mail.err /var/log/mail.err
+
+#
+# all news-messages
+#
+# these files are rotated and examined by "news.daily"
+news.crit -/var/log/news/news.crit
+news.err -/var/log/news/news.err
+news.notice -/var/log/news/news.notice
+# enable this, if you want to keep all news messages
+# in one file
+#news.* -/var/log/news.all
+
+#
+# Warnings in one file
+#
+*.=warning;*.=err -/var/log/warn
+*.crit /var/log/warn
+
+#
+# save the rest in one file
+#
+*.*;mail.none;news.none -/var/log/messages
+
+#
+# enable this, if you want to keep all messages
+# in one file
+#*.* -/var/log/allmessages
+
+#
+# Some foreign boot scripts require local7
+#
+local0,local1.* -/var/log/localmessages
+local2,local3.* -/var/log/localmessages
+local4,local5.* -/var/log/localmessages
+local6,local7.* -/var/log/localmessages
--- sample.conf
+++ sample.conf 2022-10-19 09:50:35.677760471 +0000
@@ -0,0 +1,60 @@
+# /etc/syslog.conf - Configuration file for syslogd(8)
+#
+# For info about the format of this file, see "man syslog.conf".
+#
+
+#
+#
+# print most on tty10 and on the xconsole pipe
+#
+kern.warning;*.err;authpriv.none /dev/tty10
+kern.warning;*.err;authpriv.none |/dev/xconsole
+*.emerg *
+
+# enable this, if you want that root is informed
+# immediately, e.g. of logins
+#*.alert root
+
+
+#
+# all email-messages in one file
+#
+mail.* -/var/log/mail
+mail.info -/var/log/mail.info
+mail.warning -/var/log/mail.warn
+mail.err /var/log/mail.err
+
+#
+# all news-messages
+#
+# these files are rotated and examined by "news.daily"
+news.crit -/var/log/news/news.crit
+news.err -/var/log/news/news.err
+news.notice -/var/log/news/news.notice
+# enable this, if you want to keep all news messages
+# in one file
+#news.* -/var/log/news.all
+
+#
+# Warnings in one file
+#
+*.=warning;*.=err -/var/log/warn
+*.crit /var/log/warn
+
+#
+# save the rest in one file
+#
+*.*;mail.none;news.none -/var/log/messages
+
+#
+# enable this, if you want to keep all messages
+# in one file
+#*.* -/var/log/allmessages
+
+#
+# Some foreign boot scripts require local7
+#
+local0,local1.* -/var/log/localmessages
+local2,local3.* -/var/log/localmessages
+local4,local5.* -/var/log/localmessages
+local6,local7.* -/var/log/localmessages
--- syslog.c
+++ syslog.c 2022-10-19 09:50:35.677760471 +0000
@@ -73,7 +73,12 @@ static char sccsid[] = "@(#)syslog.c 5.2
#include <paths.h>
#include <stdio.h>
-#define _PATH_LOGNAME "/dev/log"
+#ifdef _PATH_LOG
+# define _PATH_LOGNAME _PATH_LOG
+#endif
+#ifndef _PATH_LOGNAME
+# define _PATH_LOGNAME "/dev/log"
+#endif
#undef LOG_FAC
static inline int LOG_FAC(const int pri)
--- syslogd.c
+++ syslogd.c 2022-10-19 09:55:06.300950261 +0000
@@ -519,6 +519,7 @@ static char sccsid[] __attribute__ ((un
#include <sys/types.h>
#endif
#include <utmp.h>
+#include <limits.h>
#include <ctype.h>
#include <string.h>
#include <setjmp.h>
@@ -651,7 +652,11 @@ int sd_fds = 0;
# define UNAMESZ 8 /* length of a login name */
#endif
#define MAXUNAMES 20 /* maximum number of user names */
-#define MAXFNAME 200 /* max file pathname length */
+#ifdef _POSIX_PATH_MAX
+# define MAXFNAME _POSIX_PATH_MAX
+#else
+# define MAXFNAME 200 /* max file pathname length */
+#endif
#define INTERNAL_NOPRI 0x10 /* the "no priority" priority */
#define TABLE_NOPRI 0 /* Value to indicate no priority in f_pmask */
@@ -733,8 +738,8 @@ struct filed {
* in seconds after previous message is logged. After each flush,
* we move to the next interval until we reach the largest.
*/
-int repeatinterval[] = { 30, 60 }; /* # of secs before flush */
-#define MAXREPEAT ((sizeof(repeatinterval) / sizeof(repeatinterval[0])) - 1)
+time_t repeatinterval[] = { 30, 60 }; /* # of secs before flush */
+#define MAXREPEAT ((int)((sizeof(repeatinterval) / sizeof(repeatinterval[0])) - 1))
#define REPEATTIME(f) ((f)->f_time + repeatinterval[(f)->f_repeatcount])
#define BACKOFF(f) { if (++(f)->f_repeatcount > MAXREPEAT) \
(f)->f_repeatcount = MAXREPEAT; \
@@ -849,7 +854,7 @@ int usage(void);
static pid_t sid;
#endif
void untty(void);
-void printchopped(const char *hname, char *msg, int len, int fd);
+void printchopped(const char *hname, char *msg, size_t len, int fd);
void printline(const char *hname, char *msg);
void printsys(char *msg);
void logmsg(int pri, char *msg, const char *from, int flags);
@@ -944,7 +949,12 @@ int main(argc, argv)
int maxfds;
#ifndef TESTING
- chdir ("/");
+ if (chdir("/") < 0) {
+ fprintf(stderr,
+ "syslogd: Can not change to root directory: %s\n",
+ strerror(errno));
+ exit(1);
+ }
#endif
for (i = 1; i < MAXFUNIX; i++) {
funixn[i] = "";
@@ -1400,7 +1410,7 @@ int main(argc, argv)
parts[fileno(stdin)] = (char *) 0;
i = read(fileno(stdin), line, MAXLINE);
if (i > 0) {
- printchopped(LocalHostName, line, i+1, fileno(stdin));
+ printchopped(LocalHostName, line, (size_t)(i+1), fileno(stdin));
} else if (i < 0) {
if (errno != EINTR) {
logerror("stdin");
@@ -1474,8 +1484,9 @@ static int create_unix_socket(const char
close(fd);
#ifndef SYSV
dienow();
-#endif
+#else
return -1;
+#endif
}
return fd;
}
@@ -1660,7 +1671,7 @@ void untty()
void printchopped(hname, msg, len, fd)
const char *hname;
char *msg;
- int len;
+ size_t len;
int fd;
{
auto int ptlngth;
@@ -1771,6 +1782,8 @@ void printline(hname, msg)
while ((c = *p++) && q < &line[sizeof(line) - 4]) {
if (c == '\n' || c == 127)
*q++ = ' ';
+ else if (c == '\t')
+ *q++ = c;
else if (c < 040) {
*q++ = '^';
*q++ = c ^ 0100;
@@ -1954,7 +1967,7 @@ void logmsg(pri, msg, from, flags)
!strcmp(from, f->f_prevhost)) {
(void) strncpy(f->f_lasttime, timestamp, 15);
f->f_prevcount++;
- dprintf("msg repeated %d times, %ld sec of %d.\n",
+ dprintf("msg repeated %d times, %ld sec of %ld.\n",
f->f_prevcount, now - f->f_time,
repeatinterval[f->f_repeatcount]);
/*
@@ -2293,15 +2306,7 @@ void wallmsg(f, iov)
register struct filed *f;
struct iovec *iov;
{
- char p[sizeof (_PATH_DEV) + UNAMESZ];
- register int i;
- int ttyf, len;
static int reenter = 0;
- struct utmp ut;
- struct utmp *uptr;
- char greetings[200];
-
- (void) &len;
if (reenter++)
return;
@@ -2309,12 +2314,18 @@ void wallmsg(f, iov)
/* open the user login file */
setutent();
-
/*
* Might as well fork instead of using nonblocking I/O
* and doing notty().
*/
if (fork() == 0) {
+ char p[sizeof (_PATH_DEV) + UNAMESZ];
+ register int i;
+ int ttyf, len;
+ struct utmp ut;
+ struct utmp *uptr;
+ char greetings[200];
+
(void) signal(SIGTERM, SIG_DFL);
(void) alarm(0);
(void) snprintf(greetings, sizeof(greetings),
@@ -2358,7 +2369,7 @@ void wallmsg(f, iov)
iov[1].iov_len = 0;
}
if (setjmp(ttybuf) == 0) {
- (void) signal(SIGALRM, endtty);
+ (void) resignal(SIGALRM, endtty);
(void) alarm(15);
/* open the terminal */
ttyf = open(p, O_WRONLY|O_NOCTTY);
@@ -2521,7 +2532,7 @@ void domark()
for (f = Files; f; f = f->f_next) {
#endif
if (f->f_prevcount && now >= REPEATTIME(f)) {
- dprintf("flush %s: repeated %d times, %d sec.\n",
+ dprintf("flush %s: repeated %d times, %ld sec.\n",
TypeNames[f->f_type], f->f_prevcount,
repeatinterval[f->f_repeatcount]);
fprintlog(f, LocalHostName, 0, (char *)NULL);
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