Index: trunk/minix/commands/syslogd/.depend =================================================================== --- trunk/minix/commands/syslogd/.depend (revision 9) +++ (revision ) @@ -1,94 +1,0 @@ - -logger.o: /usr/include/ansi.h -logger.o: /usr/include/ctype.h -logger.o: /usr/include/errno.h -logger.o: /usr/include/minix/sys_config.h -logger.o: /usr/include/minix/type.h -logger.o: /usr/include/stdio.h -logger.o: /usr/include/stdlib.h -logger.o: /usr/include/string.h -logger.o: /usr/include/sys/dir.h -logger.o: /usr/include/sys/types.h -logger.o: /usr/include/syslog.h -logger.o: /usr/include/unistd.h -logger.o: logger.c - -syslog.o: /usr/include/ansi.h -syslog.o: /usr/include/errno.h -syslog.o: /usr/include/fcntl.h -syslog.o: /usr/include/minix/ioctl.h -syslog.o: /usr/include/minix/sys_config.h -syslog.o: /usr/include/minix/type.h -syslog.o: /usr/include/net/gen/in.h -syslog.o: /usr/include/net/gen/inet.h -syslog.o: /usr/include/net/gen/netdb.h -syslog.o: /usr/include/net/gen/udp.h -syslog.o: /usr/include/net/gen/udp_io.h -syslog.o: /usr/include/net/hton.h -syslog.o: /usr/include/net/ioctl.h -syslog.o: /usr/include/net/netlib.h -syslog.o: /usr/include/stdarg.h -syslog.o: /usr/include/stdio.h -syslog.o: /usr/include/stdlib.h -syslog.o: /usr/include/string.h -syslog.o: /usr/include/sys/dir.h -syslog.o: /usr/include/sys/ioc_cmos.h -syslog.o: /usr/include/sys/ioc_disk.h -syslog.o: /usr/include/sys/ioc_file.h -syslog.o: /usr/include/sys/ioc_memory.h -syslog.o: /usr/include/sys/ioc_scsi.h -syslog.o: /usr/include/sys/ioc_sound.h -syslog.o: /usr/include/sys/ioc_tape.h -syslog.o: /usr/include/sys/ioc_tty.h -syslog.o: /usr/include/sys/ioctl.h -syslog.o: /usr/include/sys/types.h -syslog.o: /usr/include/syslog.h -syslog.o: /usr/include/time.h -syslog.o: /usr/include/unistd.h -syslog.o: syslog.c - -syslog_test.o: /usr/include/ansi.h -syslog_test.o: /usr/include/minix/sys_config.h -syslog_test.o: /usr/include/minix/type.h -syslog_test.o: /usr/include/sys/types.h -syslog_test.o: /usr/include/syslog.h -syslog_test.o: /usr/include/unistd.h -syslog_test.o: syslog_test.c - -syslogd.o: /usr/include/ansi.h -syslogd.o: /usr/include/ctype.h -syslogd.o: /usr/include/errno.h -syslogd.o: /usr/include/fcntl.h -syslogd.o: /usr/include/limits.h -syslogd.o: /usr/include/minix/ioctl.h -syslogd.o: /usr/include/minix/sys_config.h -syslogd.o: /usr/include/minix/type.h -syslogd.o: /usr/include/net/gen/in.h -syslogd.o: /usr/include/net/gen/netdb.h -syslogd.o: /usr/include/net/gen/udp.h -syslogd.o: /usr/include/net/gen/udp_io.h -syslogd.o: /usr/include/net/hton.h -syslogd.o: /usr/include/net/ioctl.h -syslogd.o: /usr/include/net/netlib.h -syslogd.o: /usr/include/signal.h -syslogd.o: /usr/include/stdio.h -syslogd.o: /usr/include/stdlib.h -syslogd.o: /usr/include/string.h -syslogd.o: /usr/include/sys/dir.h -syslogd.o: /usr/include/sys/ioc_cmos.h -syslogd.o: /usr/include/sys/ioc_disk.h -syslogd.o: /usr/include/sys/ioc_file.h -syslogd.o: /usr/include/sys/ioc_memory.h -syslogd.o: /usr/include/sys/ioc_scsi.h -syslogd.o: /usr/include/sys/ioc_sound.h -syslogd.o: /usr/include/sys/ioc_tape.h -syslogd.o: /usr/include/sys/ioc_tty.h -syslogd.o: /usr/include/sys/ioctl.h -syslogd.o: /usr/include/sys/select.h -syslogd.o: /usr/include/sys/time.h -syslogd.o: /usr/include/sys/types.h -syslogd.o: /usr/include/sys/wait.h -syslogd.o: /usr/include/syslog.h -syslogd.o: /usr/include/time.h -syslogd.o: /usr/include/unistd.h -syslogd.o: syslogd.c Index: trunk/minix/commands/syslogd/CHANGELOG =================================================================== --- trunk/minix/commands/syslogd/CHANGELOG (revision 9) +++ (revision ) @@ -1,17 +1,0 @@ -Version 1.1 Oct. 28, 2000 - - first release for testing. - -Version 1.2 Jan. 23, 2001 - - Changed pidfile directory to '/usr/spool/locks' - so at boot old file is deleted. - - Changed the 'debug' variable to 'DbgOpt' so 'debug' - can be a preprocessor define from Makefile. - -Version 1.3 - - Changes for Minix 3.0 - - Changed pidfile to /var/run/syslogd.pid and added code - for setting pathname from Makefile - - Merged code from usyslogd.c to handle kernel messages. - - Reworked Makefile to make a correct installation - -$Id: CHANGELOG,v 1.1 2006/04/03 13:07:42 beng Exp $ Index: trunk/minix/commands/syslogd/Makefile =================================================================== --- trunk/minix/commands/syslogd/Makefile (revision 9) +++ (revision ) @@ -1,44 +1,0 @@ -## -## @(#)Makefile 1.00 Jan. 11, 2000 -## -## Makefile for syslogd/klogd -## $Id: Makefile,v 1.2 2006/04/04 12:52:22 beng Exp $ - -BINDIR = /usr/bin - -CC = exec cc -RM = rm -f -EXTRA = -DPIDFILE=\"/var/run/syslogd.pid\" -CPPFLAGS= -D_MINIX -D_POSIX_SOURCE -Ddebug=0 $(EXTRA) -I. -CFLAGS = -m -O $(CPPFLAGS) -MKDEP = mkdep "$(CC) -E $(CPPFLAGS)" -LDFLAGS = -i -o $@ -TARGETS = logger syslogd - -SRCS = logger.c syslog.c syslog_test.c syslogd.c -OBJS = logger.o syslog.o syslog_test.o syslogd.o - -all: $(TARGETS) - -syslogd: syslogd.o - $(CC) $? $(LDFLAGS) - @install -S 8kw $@ - -syslog_test: syslog_test.o syslog.o - $(CC) syslog_test.o syslog.o $(LDFLAGS) - @install -S 2kw $@ - -logger: logger.o syslog.o - $(CC) logger.o syslog.o $(LDFLAGS) - @install -S 2kw $@ - -clean: - $(RM) $(OBJS) $(TARGETS) syslog_test *.BAK core - -install: $(BINDIR)/logger $(BINDIR)/syslog_test $(BINDIR)/syslogd -$(BINDIR)/logger: logger - install -cs -m 755 -o bin -g operator $? $@ -$(BINDIR)/syslog_test: syslog_test - install -cs -m 755 -o bin -g operator $? $@ -$(BINDIR)/syslogd: syslogd - install -cs -m 700 -o root -g operator $? $@ Index: trunk/minix/commands/syslogd/README =================================================================== --- trunk/minix/commands/syslogd/README (revision 9) +++ (revision ) @@ -1,69 +1,0 @@ -This is just syslogd and the test programs now. syslog() is in libc 4.2 -syslogd has been changed to use /proc/kmsg for kernel messages. It also -avoids making any terminal it opens its controlling terminal. Otherwise -we have a dodgy race condition between processes connecting to terminals -which can result in the terminal having the wrong group at the wrong time. -The syslog() in libc 4.2 needs changing to use O_NOCTTY on its opens as -well. - -Mike Jagdis Internet: jaggy@purplet.demon.co.uk - FidoNet: Mike Jagdis, 2:252/305 - ---------------------------------------------------------------------------- - - Syslogd and Syslog.o - -These are the syslogd and syslog ported from 4.3BSD (that's the new one with -the *very* flexible config file). - -Syslogd is essentially unchanged from the 4.3BSD, with the exception that -*nothing* is ever logged to the console (BAD thing to do on a UNIXpc). You -can configure it (via /etc/syslog.conf) to log messages in different -logfiles (depending upon the sender's facility code and the priority), log -to users' terminals (same dependancies), and if things get real bad, it can -do a wall (write-all; same dependancies). - -Syslog is really only modified in that it uses UDP datagrams because I had -no luck at all using UNIX domain sockets on the 3B1. See syslog.h for -facility codes and priorities that can be used. - - -BUGS: -Messages from facilities LOG_KERN, LOG_USER, and LOG_PRT never can be -wall-ed, no matter how high the priority. I'm still trying to decide if -this is a bug or a feature. :-) - - -ALSO INCLUDED: - -Syslog_test, sendlog (to use from shell scripts) and logger (for use in -shell script also). - -NEEDED: - -The resolver routines in libresolv.a are not needed, but allow you to log to -hosts not present in /etc/hosts and to accept logging from same. - ------------------------------------------------------------------------ - -Fixed up UNIX domain socket code, added Linux specific code to read messages -from the kernel. - -The #ifdefs are now :- - -SYSLOG_INET listen on a UDP socket (syslogd) - log via UDP (syslog library call) - -SYSLOG_UNIXAF listen on a UNIX domain socker (syslogd) - log via UNIX domain (syslogd library) - -SYSLOG_KERNEL fork a second copy to read kernel messages using - syslog system call. - -syslogd should be built with one or more of these flags, libsyslog.a should -be built with SYSLOG_INET or SYSLOG_UNIXAF, SYSLOG_INET is used in preference -to SYSLOG_UNIXAF. - -readlog is a program which reads from the kernel and records the messages -it finds in syslogd via the normal library call interface, it can be run -instead of building syslogd with SYSLOG_KERNEL. Index: trunk/minix/commands/syslogd/README.minix =================================================================== --- trunk/minix/commands/syslogd/README.minix (revision 9) +++ (revision ) @@ -1,28 +1,0 @@ - - - This is the porting to Minix of the "syslogd" facility - available on many other *nix systems. - - Since I' m still using an old 286 machine for my Minix - environment, I choosed to start from an old implementation - which has only the basic features. The result is a smaller - program, more suitable for 16 bits machines. - - The file syslog.c should be included in C compiler library - (libc.a) or directly linked with prorams requiring syslog. - - If you choose the former solution, you must recreate the - library. After having copied the file syslog.c to the - directory '/usr/src/libs/other' you have to modify the - Makefile in this directory adding syslog.c. - - Then issue a 'make' command in the '/usr/src/libs' and wait - a while. Then issue 'make install' to install the new object. - - NOTE: The network must be configured, up and running for - the package to work - - Giovanni Falzoni - - $Id: README.minix,v 1.1 2006/04/03 13:07:42 beng Exp $ - Index: trunk/minix/commands/syslogd/logger.c =================================================================== --- trunk/minix/commands/syslogd/logger.c (revision 9) +++ (revision ) @@ -1,188 +1,0 @@ -/* Copyright (c) 1983, 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * #ifndef lint - * char copyright[] = - * "@(#) Copyright (c) 1983 Regents of the University of California.\n\ - * All rights reserved.\n"; - * #endif - * - * #ifndef lint - * static char sccsid[] = "@(#)logger.c 6.8 (Berkeley) 6/29/88"; - * #endif - * - * Porting to Minix by G. Falzoni - * $Id: logger.c,v 1.1 2006/04/03 13:07:42 beng Exp $ - */ - -#include -#include -#include -#include -#include -#include -#include - -/* -** LOGGER -- read and log utility -** -** This program reads from an input and arranges to write the -** result on the system log, along with a useful tag. -*/ - -#define SYSLOG_NAMES -#include - -/* -** Name: void bailout(char *msg, char *arg); -** Function: Handles error exit. -*/ -void bailout(const char *msg, const char *arg) -{ - - fprintf(stderr, "logger: %s %s\n", msg, arg); - exit(EXIT_FAILURE); -} - -/* -** Name: int decode(char *name, struct code * codetab); -** Function: Decodes a name to the equivalent priority/facility. -*/ -int decode(char *name, const struct _code * codetab) -{ - const struct _code *c; - - if (isdigit(*name)) return(atoi(name)); - - for (c = codetab; c->c_name; c++) - if (!strcasecmp(name, c->c_name)) return(c->c_val); - - return(-1); -} - -/* -** Name: int pencode(char *s); -** Function: Decode a symbolic name (facility/priority) -** to a numeric value. -*/ -int pencode(char *s) -{ - char *save; - int fac, lev; - - for (save = s; *s && *s != '.'; ++s); - if (*s) { - *s = '\0'; - fac = decode(save, FacNames); - if (fac < 0) bailout("unknown facility name:", save); - *s++ = '.'; - } else { - fac = 0; - s = save; - } - lev = decode(s, PriNames); - if (lev < 0) bailout("unknown priority name:", save); - return((lev & LOG_PRIMASK) | (fac & LOG_FACMASK)); -} - -/* -** Name: int main(int argc, char **argv); -** Function: Main entry for logger. -*/ -int main(int argc, char **argv) -{ - int pri = LOG_NOTICE; - int ch, logflags = 0; - char *tag, buf[200]; - static const char usage[] = - "[-i] [-f file] [-p pri] [-t tag] [ message ... ]"; - - tag = NULL; - while ((ch = getopt(argc, argv, "f:ip:t:")) != EOF) { - switch ((char) ch) { - case 'f': /* file to log */ - if (freopen(optarg, "r", stdin) == NULL) { - bailout(strerror(errno), optarg); - } - break; - case 'i': /* log process id also */ - logflags |= LOG_PID; - break; - case 'p': /* priority */ - pri = pencode(optarg); - break; - case 't': /* tag */ - tag = optarg; - break; - case '?': - default: bailout(usage, ""); break; - } - } - argc -= optind; - argv += optind; - - /* Setup for logging */ - openlog(tag ? tag : getlogin(), logflags, 0); - fclose(stdout); - - if (argc > 0) { /* Log input line if appropriate */ - char *p, *endp; - int len; - - for (p = buf, endp = buf + sizeof(buf) - 1;;) { - len = strlen(*argv); - if (p + len < endp && p > buf) { - *--p = '\0'; - syslog(pri, buf); - p = buf; - } - if (len > sizeof(buf) - 1) { - syslog(pri, *argv++); - if (!--argc) break; - } else { - memcpy(p, *argv++, len); - p += len; - if (!--argc) break; - *p++ = ' '; - *--p = '\0'; - } - } - if (p != buf) { - *p = '\0'; - syslog(pri, buf); - } - } else /* Main loop */ - while (fgets(buf, sizeof(buf), stdin) != NULL) syslog(pri, buf); - - return EXIT_SUCCESS; -} - -/** logger.c **/ Index: trunk/minix/commands/syslogd/syslog.c =================================================================== --- trunk/minix/commands/syslogd/syslog.c (revision 9) +++ (revision ) @@ -1,167 +1,0 @@ -/* Copyright (c) 1983, 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * #if defined(LIBC_SCCS) && !defined(lint) - * static char sccsid[] = "@(#)syslog.c 8.4 (Berkeley) 3/18/94"; - * #endif - * - * Author: Eric Allman - * Modified to use UNIX domain IPC by Ralph Campbell - * Patched March 12, 1996 by A. Ian Vogelesang - * Rewritten by Martin Mares on May 14, 1997 - * Rewritten by G. Falzoni for porting to Minix - * - * $Id: syslog.c,v 1.1 2006/04/03 13:07:42 beng Exp $ - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -static int LogPid = (-1); -static int nfd = (-1); -static int LogFacility = LOG_USER; -static int LogFlags = 0; -static char TagBuffer[40] = "syslog"; - -/* -** OPENLOG -- open system log -** - establishes a channel to syslogd using UDP device -** (port 514 is used _ syslog/udp) -** - stores program tag (if not NULL) and other options -** for use by syslog -*/ -void openlog(const char *ident, int option, int facility) -{ - struct nwio_udpopt udpopt; - - /* Stores logging flags */ - LogFlags = option & (LOG_PID | LOG_PERROR | LOG_CONS); - /* Stores process id. if LOG_PID was specified */ - if (option & LOG_PID) LogPid = getpid(); - /* Stores the requested facility */ - LogFacility = facility; - /* Stores log tag if supplied */ - if (ident != NULL && *ident != '0' && ident != TagBuffer) { - strncpy(TagBuffer, ident, sizeof(TagBuffer)); - TagBuffer[sizeof(TagBuffer) - 1] = '0'; - } - - /* Opens channel to syslog daemon via UDP device */ - /* Static values used to minimize code */ - if (option & LOG_NDELAY) { - /* Opens UDP device */ - if ((nfd = open(UDP_DEVICE, O_RDWR)) < 0) { - /* Report error */ ; - } - /* Sets options for UDP device */ - udpopt.nwuo_flags = NWUO_SHARED | NWUO_LP_SET | NWUO_DI_LOC | - NWUO_DI_BROAD | NWUO_RP_SET | NWUO_RA_SET | - NWUO_RWDATONLY | NWUO_DI_IPOPT; - udpopt.nwuo_locaddr = udpopt.nwuo_remaddr = htonl(0x7F000001L); - udpopt.nwuo_locport = udpopt.nwuo_remport = htons(514); - if (ioctl(nfd, NWIOSUDPOPT, &udpopt) < 0 || - ioctl(nfd, NWIOGUDPOPT, &udpopt) < 0) { - /* Report error */ ; - } - } - return; -} - -/* -** SYSLOG -- print message on log file -** -** This routine looks a lot like printf, except that it outputs to the -** log file instead of the standard output. Also: -** - adds a timestamp, -** - prints the module name in front of the message, -** - has some other formatting types (or will sometime), -** - adds a newline on the end of the message. -** -** The output of this routine is intended to be read by syslogd(8). -*/ -void syslog(int lprty, const char *msg,...) -{ - time_t now; - char buff[512]; - int len, rc; - va_list ap; - - /* First log message open chnnel to syslog */ - if (nfd < 0) openlog(TagBuffer, LogFlags | LOG_NDELAY, LogFacility); - time(&now); - len = sprintf(buff, "<%d>%.15s %s: ", - LogFacility | lprty, ctime(&now) + 4, TagBuffer); - if (LogFlags & LOG_PID) { - len -= 2; - len += sprintf(buff + len, "[%d]: ", LogPid); - } - va_start(ap, msg); - len += vsprintf(buff + len, msg, ap); - va_end(ap); - rc = write(nfd, buff, len); - if ((rc != len && LogFlags & LOG_CONS) || LogFlags & LOG_PERROR) { - write(STDERR_FILENO, buff, len); - write(STDERR_FILENO, "\n", 1); - } - return; -} - -/* -** CLOSELOG -- close access to syslogd -** - closes UDP channel -** - restores default values -*/ -void closelog(void) -{ - - close(nfd); - LogPid = nfd = -1; - LogFacility = LOG_USER; - LogFlags = 0; - return; -} - -/** syslog.c **/ Index: trunk/minix/commands/syslogd/syslog_test.c =================================================================== --- trunk/minix/commands/syslogd/syslog_test.c (revision 9) +++ (revision ) @@ -1,30 +1,0 @@ -/* -** syslog_test -** -** Author: Giovanni Falzoni -** $Id: syslog_test.c,v 1.1 2006/04/03 13:07:42 beng Exp $ -*/ - -#include -#include -#include - -/* -** SYSLOG TEST -** Very simple utility to test syslog facility. -*/ -void main(void) -{ - int ix; - - openlog("syslog_test", LOG_PID | LOG_NDELAY | LOG_PERROR | LOG_CONS, LOG_DAEMON); - - for (ix = LOG_EMERG; ix <= LOG_DEBUG; ix += 1) { - sleep(2); - syslog(ix, "message from test program - log level %d", ix); - } - closelog(); - return; -} - -/** syslog_test.c **/ Index: trunk/minix/commands/syslogd/syslogd.c =================================================================== --- trunk/minix/commands/syslogd/syslogd.c (revision 9) +++ (revision ) @@ -1,932 +1,0 @@ -/* -** Copyright (c) 1983, 1988 -** The Regents of the University of California. All rights reserved. -** -** Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions -** are met: -** 1. Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** 2. Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in the -** documentation and/or other materials provided with the distribution. -** 3. All advertising materials mentioning features or use of this software -** must display the following acknowledgement: -** This product includes software developed by the University of -** California, Berkeley and its contributors. -** 4. Neither the name of the University nor the names of its contributors -** may be used to endorse or promote products derived from this software -** without specific prior written permission. -** -** THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -** ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -** OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -** HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -** SUCH DAMAGE. -** -** #ifndef lint -** char copyright2[] = -** "@(#) Copyright (c) 1983, 1988 Regents of the University of California.\n\ -** All rights reserved.\n"; -** #endif -** -** #ifndef lint -** static char sccsid[] = "@(#)syslogd.c 5.27 (Berkeley) 10/10/88"; -** #endif -** -** ----------------------------------------------------------------------- -** -** SYSLOGD -- log system messages -** This program implements a system log. -** It takes a series of lines and outputs them according to the setup -** defined in the configuration file. -** Each line may have a priority, signified as "" as -** the first characters of the line. If this is -** not present, a default priority is used. -** -** To kill syslogd, send a signal 15 (terminate). -** A signal 1 (hup) will cause it to reread its configuration file. -** -** Defined Constants: -** MAXLINE -- the maximimum line length that can be handled. -** MAXSVLINE -- the length of saved messages (for filtering) -** DEFUPRI -- the default priority for user messages -** DEFSPRI -- the default priority for kernel messages -** -** Author: Eric Allman -** extensive changes by Ralph Campbell -** more extensive changes by Eric Allman (again) -** changes by Steve Lord -** -** Extensive rewriting by G. Falzoni for porting to Minix -** -** $Log: syslogd.c,v $ -** Revision 1.3 2006/04/04 14:22:40 beng -** Fix -** -** Revision 1.2 2006/04/04 14:18:16 beng -** Make syslogd work, even if it can only open klog and not udp or vice versa -** (but not neither) -** -** Revision 1.1 2006/04/03 13:07:42 beng -** Kick out usyslogd in favour of syslogd Giovanni's syslogd port -** -** Revision 1.3 2005/09/16 10:10:12 lsodgf0 -** Rework for Minix 3. Adds kernel logs from /dev/klogd -** -** $Id: syslogd.c,v 1.3 2006/04/04 14:22:40 beng Exp $ -*/ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define SYSLOG_NAMES -#include -#define KLOGD 1 -/** Define following values to your requirements **/ -#define MAXLINE 512 /* maximum line length */ -#define MAXSVLINE 256 /* maximum saved line length */ - -#define DEFUPRI (LOG_USER|LOG_NOTICE) -#define DEFSPRI (LOG_KERN|LOG_CRIT) - -/* Flags to logmsg() */ -#define IGN_CONS 0x001 /* don't print on console */ -#define SYNC_FILE 0x002 /* do fsync on file after printing */ -#define ADDDATE 0x004 /* add a date to the message */ -#define MARK 0x008 /* this message is a mark */ - -#define CTTY "/dev/log" /* Minix log device (console) */ - -#define dprintf if(DbgOpt!=0)printf -#if debug == 0 -#define DEBUG(statement) -#else -#define DEBUG(statement) statement -#endif -#if !defined PIDFILE -#define PIDFILE "/var/run/syslogd.pid" -#endif - -#define UNAMESZ 8 /* length of a login name */ -#define MAXUNAMES 20 /* maximum number of user names */ -#define MAXFNAME 200 /* max file pathname length */ -#define MAXHOSTNAMELEN 64 /* max length of FQDN host name */ - -/* Intervals at which we flush out "message repeated" messages, - * in seconds after previous message is logged. After each flush, - * we move to the next interval until we reach the largest. */ -#define TIMERINTVL 30 /* interval for checking flush, mark */ -#define INTERVAL1 30 -#define INTERVAL2 60 -#define MAXREPEAT ((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;} - -/* Values for f_type */ -#define F_UNUSED 0 /* unused entry */ -#define F_FILE 1 /* regular file */ -#define F_TTY 2 /* terminal */ -#define F_CONSOLE 3 /* console terminal */ -#define F_FORW 4 /* remote machine */ -#define F_USERS 5 /* list of users */ -#define F_WALL 6 /* everyone logged on */ - -#define max(a,b) ((a)>=(b)?(a):(b)) - -/* This structure represents the files that will have log copies printed */ -struct filed { - struct filed *f_next; /* next in linked list */ - short f_type; /* entry type, see below */ - short f_file; /* file descriptor */ - time_t f_time; /* time this was last written */ - char f_pmask[LOG_NFACILITIES + 1]; /* priority mask */ - union { - char f_uname[MAXUNAMES][UNAMESZ + 1]; - char f_fname[MAXFNAME]; - } f_un; - char f_prevline[MAXSVLINE]; /* last message logged */ - char f_lasttime[16]; /* time of last occurrence */ - char f_prevhost[MAXHOSTNAMELEN + 1]; /* host from which recd. */ - int f_prevpri; /* pri of f_prevline */ - int f_prevlen; /* length of f_prevline */ - int f_prevcount; /* repetition cnt of prevline */ - int f_repeatcount; /* number of "repeated" msgs */ - int f_flags; /* store some additional flags */ -}; - -static const char *const TypeNames[] = -{ - "UNUSED", "FILE", "TTY", "CONSOLE", "FORW", "USERS", "WALL", NULL, -}; - -static struct filed *Files = NULL; -static struct filed consfile; -static int DbgOpt = 0; /* debug flag */ -static char LocalHostName[MAXHOSTNAMELEN + 1]; /* our hostname */ -static int Initialized = 0; /* set when we have initialized ourselves */ -static int MarkInterval = 20 * 60; /* interval between marks in seconds */ -static int MarkSeq = 0; /* mark sequence number */ -static time_t now; - -static const char *ConfFile = "/etc/syslog.conf"; -static const char *PidFile = PIDFILE; /* "/var/run/syslogd.pid" */ -static const char ctty[] = CTTY; - -static const char ProgName[] = "syslogd:"; -static const char version[] = "1.3 (Minix)"; -static const char usage[] = - /* */ "usage:\tsyslogd [-d] [-m markinterval] [-f conf-file]\n" - "\t\t[-p listeningport] [-v] [-?]\n" ; -static const int repeatinterval[] = - /* */ {INTERVAL1, INTERVAL2,}; /* # of secs before flush */ - -/* -** Name: void wallmsg(struct filed *fLog, char *message); -** Function: Write the specified message to either the entire -** world, or a list of approved users. -*/ -void wallmsg(struct filed * fLog, char *message) -{ - - return; -} - -/* -** Name: void fprintlog(struct filed *fLog, int flags, char *message); -** Function: -*/ -void fprintlog(struct filed * fLog, int flags, char *message) -{ - int len; - char line[MAXLINE + 1]; - char repbuf[80]; - - if (message == NULL) { - if (fLog->f_prevcount > 1) { - sprintf(repbuf, "last message repeated %d times", fLog->f_prevcount); - message = repbuf; - } else - message = fLog->f_prevline; - } - sprintf(line, "%s %s %s", fLog->f_lasttime, fLog->f_prevhost, message); - DEBUG(dprintf("Logging to %s", TypeNames[fLog->f_type]);) - fLog->f_time = now; - switch (fLog->f_type) { - case F_UNUSED: /* */ - DEBUG(dprintf("\n");) - break; - case F_CONSOLE: - if (flags & IGN_CONS) { - case F_FORW: /* */ - DEBUG(dprintf(" (ignored)\n");) - break; - } /* else Fall Through */ - case F_TTY: - case F_FILE: - DEBUG(dprintf(" %s\n", fLog->f_un.f_fname);) - strcat(line, fLog->f_type != F_FILE ? "\r\n" : "\n"); - len = strlen(line); - if (write(fLog->f_file, line, len) != len) { - /* Handle errors */ ; - } else if (flags & SYNC_FILE) - sync(); - break; - case F_USERS: - case F_WALL: - DEBUG(dprintf("\n");) - strcat(line, "\r\n"); - wallmsg(fLog, line); - break; - } - fLog->f_prevcount = 0; - return; -} - -/* -** Name: void logmsg(int pri, char *msg, char *from, int flags); -** Function: Log a message to the appropriate log files, users, etc. -** based on the priority. -*/ -void logmsg(int pri, char *msg, char *from, int flags) -{ - struct filed *f; - int fac, prilev; - int omask, msglen; - char *timestamp; - - DEBUG(dprintf("logmsg: pri %o, flags %x, from %s, msg %s\n", pri, flags, from, msg);) -/* - omask = sigblock(__sigmask(SIGHUP) | __sigmask(SIGALRM)); -*/ - /* Check to see if msg looks non-standard. */ - msglen = strlen(msg); - if (msglen < 16 || msg[3] != ' ' || msg[6] != ' ' || - msg[9] != ':' || msg[12] != ':' || msg[15] != ' ') - flags |= ADDDATE; - - time(&now); - if (flags & ADDDATE) - timestamp = ctime(&now) + 4; - else { - timestamp = msg; - msg += 16; - msglen -= 16; - } - - /* Extract facility and priority level */ - fac = (flags & MARK) ? LOG_NFACILITIES : LOG_FAC(pri); - prilev = LOG_PRI(pri); - - /* Log the message to the particular outputs */ - if (!Initialized) { - /* Not yet initialized. Every message goes to console */ - f = &consfile; - f->f_file = open(ctty, O_WRONLY | O_NOCTTY); - if (f->f_file >= 0) { - if (!DbgOpt) setsid(); - fprintlog(f, flags, msg); - close(f->f_file); - } - } else { - for (f = Files; f; f = f->f_next) { - - /* Skip messages that are incorrect priority */ - if (f->f_pmask[fac] < prilev || f->f_pmask[fac] == INTERNAL_NOPRI) - continue; - - if (f->f_type == F_CONSOLE && (flags & IGN_CONS)) continue; - - /* Don't output marks to recently written files */ - if ((flags & MARK) && (now - f->f_time) < MarkInterval / 2) - continue; - - /* Suppress duplicate lines to this file */ - if ((flags & MARK) == 0 && msglen == f->f_prevlen && - !strcmp(msg, f->f_prevline) && - !strcmp(from, f->f_prevhost)) { - strncpy(f->f_lasttime, timestamp, 15); - f->f_prevcount += 1; - DEBUG(dprintf("msg repeated %d times, %ld sec of %d\n", - f->f_prevcount, now - f->f_time, - repeatinterval[f->f_repeatcount]);) - /* If domark would have logged this by now, - * flush it now (so we don't hold isolated - * messages), but back off so we'll flush - * less often in the future. */ - if (now > REPEATTIME(f)) { - fprintlog(f, flags, (char *) NULL); - BACKOFF(f); - } - } else { - /* New line, save it */ - if (f->f_prevcount) fprintlog(f, 0, (char *) NULL); - f->f_repeatcount = 0; - strncpy(f->f_lasttime, timestamp, 15); - strncpy(f->f_prevhost, from, sizeof(f->f_prevhost)); - if (msglen < MAXSVLINE) { - f->f_prevlen = msglen; - f->f_prevpri = pri; - strcpy(f->f_prevline, msg); - fprintlog(f, flags, (char *) NULL); - } else { - f->f_prevline[0] = 0; - f->f_prevlen = 0; - fprintlog(f, flags, msg); - } - } - } - } - -/* - sigsetmask(omask); -*/ - return; -} - -/* -** Name: void logerror(char *type); -** Function: Prints syslogd errors in some place. -*/ -void logerror(char *type) -{ - char buf[100]; - - if (errno == 0) sprintf(buf, "%s %s", ProgName, type); - - else if (errno >= _NERROR) - sprintf(buf, "%s %s - error %d", ProgName, type, errno); - - else - sprintf(buf, "%s %s - %s", ProgName, type, strerror(errno)); - - errno = 0; - dprintf("%s\n", buf); - logmsg(LOG_SYSLOG | LOG_ERR, buf, LocalHostName, ADDDATE); - return; -} - -/* -** Name: void die(int sig); -** Function: Signal handler for kill signals. -*/ -void die(int sig) -{ - struct filed *f; - char buf[100]; - - for (f = Files; f != NULL; f = f->f_next) { - /* Flush any pending output */ - if (f->f_prevcount) fprintlog(f, 0, NULL); - } - if (sig >= 0) { - DEBUG(dprintf("%s exiting on signal %d\n", ProgName, sig);) - sprintf(buf, "exiting on signal %d", sig); - errno = 0; - logerror(buf); - } - unlink(PidFile); - exit(sig == (-1) ? EXIT_FAILURE : EXIT_SUCCESS); -} - -/* -** Name: void domark(int sig); -** Function: Signal handler for alarm. -** Used for messages filtering and mark facility. -*/ -void domark(int sig) -{ - struct filed *f; - - now = time(NULL); - MarkSeq += TIMERINTVL; - if (MarkSeq >= MarkInterval) { - logmsg(LOG_INFO, "-- MARK --", LocalHostName, ADDDATE | MARK); - MarkSeq = 0; - } - for (f = Files; f; f = f->f_next) { - if (f->f_prevcount && now >= REPEATTIME(f)) { - DEBUG(dprintf("flush %s: repeated %d times, %d sec.\n", - TypeNames[f->f_type], f->f_prevcount, - repeatinterval[f->f_repeatcount]);) - fprintlog(f, 0, NULL); - BACKOFF(f); - } - } - signal(SIGALRM, domark); - alarm(TIMERINTVL); - return; -} - -/* -** Name: int decode(char *name, struct _code *codetab); -** Function: Decode a symbolic name to a numeric value -*/ -int decode(char *name, const struct _code *codetab) -{ - const struct _code *c; - char *p; - char buf[40]; - - DEBUG(dprintf("symbolic name: %s", name);) - if (isdigit(*name)) return (atoi(name)); - - strcpy(buf, name); - for (p = buf; *p; p += 1) { - if (isupper(*p)) *p = tolower(*p); - } - for (c = codetab; c->c_name; c += 1) { - if (!strcmp(buf, c->c_name)) { - DEBUG(dprintf(" ==> %d\n", c->c_val);) - return (c->c_val); - } - } - return (-1); -} - -/* -** Name: void cfline(char *line, struct filed *f); -** Function: Parse a configuration file line -*/ -void cfline(char *line, struct filed * fLog) -{ - char *p, *q, *bp; - int ix, pri; - char buf[MAXLINE]; - char xbuf[200]; - - DEBUG(dprintf("cfline(%s)\n", line);) - - /* Keep sys_errlist stuff out of logerror messages */ - errno = 0; - - /* Clear out file entry */ - memset(fLog, 0, sizeof(*fLog)); - for (ix = 0; ix <= LOG_NFACILITIES; ix += 1) /* */ - fLog->f_pmask[ix] = INTERNAL_NOPRI; - - /* Scan through the list of selectors */ - for (p = line; *p && *p != '\t';) { - - /* Find the end of this facility name list */ - for (q = p; *q && *q != '\t' && *q++ != '.';) continue; - - /* Collect priority name */ - for (bp = buf; *q && !strchr("\t,;", *q);) *bp++ = *q++; - *bp = '\0'; - - /* Skip cruft */ - while (strchr(", ;", *q)) q++; - - /* Decode priority name */ - pri = decode(buf, PriNames); - if (pri < 0) { - sprintf(xbuf, "unknown priority name \"%s\"", buf); - logerror(xbuf); - return; - } - - /* Scan facilities */ - while (*p && !strchr("\t.;", *p)) { - for (bp = buf; *p && !strchr("\t,;.", *p);) *bp++ = *p++; - *bp = '\0'; - if (*buf == '*') { - for (ix = 0; ix <= LOG_NFACILITIES; ix += 1) - if ((fLog->f_pmask[ix] < pri) || - (fLog->f_pmask[ix] == INTERNAL_NOPRI)) { - fLog->f_pmask[ix] = pri; - } - } else { - ix = decode(buf, FacNames); - if (ix < 0) { - sprintf(xbuf, "unknown facility name \"%s\"", buf); - logerror(xbuf); - return; - } - if ((fLog->f_pmask[ix >> 3] < pri) || - (fLog->f_pmask[ix >> 3] == INTERNAL_NOPRI)) { - fLog->f_pmask[ix >> 3] = pri; - } - } - while (*p == ',' || *p == ' ') p++; - } - p = q; - } - - /* Skip to action part */ - while (*p == '\t' || *p == ' ') p++; - - DEBUG(dprintf("leading char in action: %c\n", *p);) - switch (*p) { - case '@': /* Logging to a remote host */ - break; /* NOT IMPLEMENTED */ - - case '/': /* Logging to a local file/device */ - strcpy(fLog->f_un.f_fname, p); - DEBUG(dprintf("filename: %s\n", p); /* ASP */) - if ((fLog->f_file = open(p, O_WRONLY | O_APPEND | O_CREAT | O_NOCTTY, 0644)) < 0) { - fLog->f_file = F_UNUSED; - sprintf(xbuf, "unknown file/device (%s)", p); - logerror(xbuf); - break; - } - if (isatty(fLog->f_file)) { - if (!DbgOpt) setsid(); - fLog->f_type = F_TTY; - } else - fLog->f_type = F_FILE; - if (strcmp(p, ctty) == 0) fLog->f_type = F_CONSOLE; - break; - - case '*': /* Logging to all users */ - DEBUG(dprintf("write-all\n");) - fLog->f_type = F_WALL; - break; - - default: /* Logging to selected users */ - DEBUG(dprintf("users: %s\n", p); /* ASP */) - for (ix = 0; ix < MAXUNAMES && *p; ix += 1) { - for (q = p; *q && *q != ',';) q += 1; - strncpy(fLog->f_un.f_uname[ix], p, UNAMESZ); - if ((q - p) > UNAMESZ) - fLog->f_un.f_uname[ix][UNAMESZ] = '\0'; - else - fLog->f_un.f_uname[ix][q - p] = '\0'; - while (*q == ',' || *q == ' ') q++; - p = q; - } - fLog->f_type = F_USERS; - break; - } -} - -/* -** Name: void printline(char *hname, char *msg); -** Function: Takes a raw input line, decodes the message and -** prints the message on the appropriate log files. -*/ -void printline(char *hname, char *msg) -{ - char line[MAXLINE + 1]; - char *p = msg, *q = line; - int ch, pri = DEFUPRI; - - /* Test for special codes */ - if (*p == '<') { - pri = 0; - while (isdigit(*++p)) { - if ((*p - '0') < 8) { - /* Only 3 bits allocated for pri -- ASP */ - pri = 10 * pri + (*p - '0'); - } else - pri = 10 * pri + 7; - } - if (*p == '>') ++p; - } - if (pri & ~(LOG_FACMASK | LOG_PRIMASK)) pri = DEFUPRI; - - /* Does not allow users to log kernel messages */ - if (LOG_FAC(pri) == LOG_KERN) pri = LOG_MAKEPRI(LOG_USER, LOG_PRI(pri)); - - /* Copies message to local buffer, translating control characters */ - while ((ch = *p++ & 0177) != '\0' && q < &line[sizeof(line) - 1]) { - if (ch == '\n') /* Removes newlines */ - *q++ = ' '; - else if (iscntrl(ch)) { /* Translates control characters */ - *q++ = '^'; - *q++ = ch ^ 0100; - } else - *q++ = ch; - } - *q = '\0'; - - logmsg(pri, line, hname, 0); - return; -} - -/* -** Name: void printkline(char *hname, char *msg); -** Function: Takes a raw input line from kernel and -** prints the message on the appropriate log files. -*/ -void printkline(char *hname, char *msg) -{ - char line[MAXLINE + 1]; - char *p = msg, *q = line; - int ch, pri = DEFUPRI; - - /* Copies message to local buffer, adding source program tag */ - sprintf(line, "kernel: %s", msg); - - logmsg(LOG_KERN | LOG_INFO, line, hname, ADDDATE); - return; -} - -/* -** Name: void init(int sig); -** Function: Initialize syslogd from configuration file. -** Used at startup or after a SIGHUP signal. -*/ -void init(int sig) -{ - int i; - FILE *cf; - struct filed *fLog, *next, **nextp; - char *p; - char cline[BUFSIZ]; - - DEBUG(dprintf("init\n");) - - /* Close all open log files. */ - Initialized = 0; - for (fLog = Files; fLog != NULL; fLog = next) { - - /* Flush any pending output */ - if (fLog->f_prevcount) fprintlog(fLog, 0, NULL); - - switch (fLog->f_type) { - case F_FILE: - case F_TTY: - case F_CONSOLE: close(fLog->f_file); break; - } - next = fLog->f_next; - free((char *) fLog); - } - Files = NULL; - nextp = &Files; - - /* Open the configuration file */ - if ((cf = fopen(ConfFile, "r")) != NULL) { - /* Foreach line in the configuration table, open that file. */ - fLog = NULL; - while (fgets(cline, sizeof(cline), cf) != NULL) { - /* Check for end-of-section, comments, strip off - * trailing spaces and newline character. */ - for (p = cline; isspace(*p); p += 1); - if (*p == '\0' || *p == '#') continue; - for (p = strchr(cline, '\0'); isspace(*--p);); - *++p = '\0'; - fLog = (struct filed *) calloc(1, sizeof(*fLog)); - *nextp = fLog; - nextp = &fLog->f_next; - cfline(cline, fLog); - } - - /* Close the configuration file */ - fclose(cf); - Initialized = 1; -DEBUG ( - if (DbgOpt) { - for (fLog = Files; fLog; fLog = fLog->f_next) { - for (i = 0; i <= LOG_NFACILITIES; i += 1) - if (fLog->f_pmask[i] == INTERNAL_NOPRI) - printf("X "); - else - printf("%d ", fLog->f_pmask[i]); - printf("%s: ", TypeNames[fLog->f_type]); - switch (fLog->f_type) { - case F_FILE: - case F_TTY: - case F_CONSOLE: - printf("%s", fLog->f_un.f_fname); - break; - case F_FORW: - break; - case F_USERS: - for (i = 0; i < MAXUNAMES && *fLog->f_un.f_uname[i]; i += 1) - printf("%s, ", fLog->f_un.f_uname[i]); - break; - } - printf("\n"); - } - } - ) - logmsg(LOG_SYSLOG | LOG_INFO, "syslogd: restart", LocalHostName, ADDDATE); - signal(SIGHUP, init); - DEBUG(dprintf("%s restarted\n", ProgName);) - } else { - DEBUG(dprintf("cannot open %s\n", ConfFile);) - *nextp = (struct filed *) calloc(1, sizeof(*fLog)); - cfline("*.ERR\t" CTTY, *nextp); - (*nextp)->f_next = (struct filed *) calloc(1, sizeof(*fLog)); - cfline("*.PANIC\t*", (*nextp)->f_next); - Initialized = 1; - } - return; -} - -/* -** Name: void daemonize(char *line); -** Function: Clone itself and becomes a daemon releasing unnecessay resources. -*/ -void daemonize(char *line) -{ - int lfd, len, pid; - - if ((lfd = open(PidFile, O_CREAT | O_RDWR, 0600)) > 0) { - len = read(lfd, line, 10); - line[len] = '\0'; - close(lfd); - if ((kill(len = atoi(line), 0) < 0 && errno == ESRCH) || len == 0) { - if (!DbgOpt) { - /* Parent ends and child becomes a daemon */ - if ((pid = fork()) > 0) { - /* Write process id. in pid file */ - lfd = open(PidFile, O_TRUNC | O_WRONLY); - len = sprintf(line, "%5d", pid); - write(lfd, line, len); - close(lfd); - - /* Wait for initialization to complete */ - exit(EXIT_SUCCESS); - } - sleep(1); - setsid(); /* Set as session leader */ - chdir("/"); /* Change to the root directory */ - /* Get rid of all open files */ - for (lfd = STDERR_FILENO + 1; lfd < OPEN_MAX; lfd += 1) - close(lfd); - } - } else { - fprintf(stderr, "\n%s already running\n", ProgName); - exit(EXIT_FAILURE); - } - } else { - fprintf(stderr, "\n%s can't open %s (%s)\n", ProgName, PidFile, strerror(errno)); - exit(EXIT_FAILURE); - } - return; -} - -/* -** Name: int main(int argc, char **argv); -** Function: Syslog daemon entry point -*/ -int main(int argc, char **argv) -{ - char *p, *udpdev, *eol; - int nfd, kfd, len, fdmax; - int ch, port = 0; - fd_set fdset; - struct nwio_udpopt udpopt; - struct servent *sp; - char line[MAXLINE + 1]; - - while ((ch = getopt(argc, argv, "df:m:p:v?")) != EOF) { - switch ((char) ch) { - case 'd': /* Debug */ - DbgOpt += 1; - break; - case 'f': /* Set configuration file */ - ConfFile = optarg; - break; - case 'm': /* Set mark interval */ - MarkInterval = atoi(optarg) * 60; - break; - case 'p': /* Set listening port */ - port = atoi(optarg); - break; - case 'v': /* Print version */ - fprintf(stderr, "%s version %s\n", ProgName, version); - return EXIT_FAILURE; - case '?': /* Help */ - default: - fprintf(stderr, usage); - return EXIT_FAILURE; - } - } - if (argc -= optind) { - fprintf(stderr, usage); - return EXIT_FAILURE; - } - - daemonize(line); - - /* Get the official name of local host. */ - gethostname(LocalHostName, sizeof(LocalHostName) - 1); - if ((p = strchr(LocalHostName, '.'))) *p = '\0'; - - udpdev = (p = getenv("UDP_DEVICE")) ? p : UDP_DEVICE; - sp = getservbyname("syslog", "udp"); - - signal(SIGTERM, die); - signal(SIGINT, DbgOpt ? die : SIG_IGN); - signal(SIGQUIT, DbgOpt ? die : SIG_IGN); - signal(SIGALRM, domark); - - alarm(TIMERINTVL); - - /* Open UDP device */ - nfd = open(udpdev, O_NONBLOCK | O_RDONLY); - - /* Configures the UDP device */ - udpopt.nwuo_flags = NWUO_SHARED | NWUO_LP_SET | NWUO_EN_LOC | - NWUO_DI_BROAD | NWUO_RP_SET | NWUO_RA_SET | - NWUO_RWDATONLY | NWUO_DI_IPOPT; - udpopt.nwuo_locport = udpopt.nwuo_remport = - port == 0 ? sp->s_port : htons(port); - udpopt.nwuo_remaddr = udpopt.nwuo_locaddr = htonl(0x7F000001L); - - if(nfd >= 0) { - while (ioctl(nfd, NWIOSUDPOPT, &udpopt) < 0 || - ioctl(nfd, NWIOGUDPOPT, &udpopt) < 0) { - if (errno == EAGAIN) { - sleep(1); - continue; - } - logerror("Set/Get UDP options failed"); - return EXIT_FAILURE; - } - } - - /* Open kernel log device */ - kfd = open("/dev/klog", O_NONBLOCK | O_RDONLY); - - if(kfd < 0 && nfd < 0) { - logerror("open /dev/klog and udp device failed - can't log anything"); - return EXIT_FAILURE; - } - - fdmax = max(nfd, kfd) + 1; - - DEBUG(dprintf("off & running....\n");) - - init(-1); /* Initilizes log data structures */ - - for (;;) { /* Main loop */ - - FD_ZERO(&fdset); /* Setup descriptors for select */ - if(nfd >= 0) FD_SET(nfd, &fdset); - if(kfd >= 0) FD_SET(kfd, &fdset); - - if (select(fdmax, &fdset, NULL, NULL, NULL) <= 0) { - sleep(1); - continue; - - } - if (nfd >= 0 && FD_ISSET(nfd, &fdset)) { - - /* Read a message from application programs */ - len = read(nfd, line, MAXLINE); - if (len > 0) { /* Got a message */ - line[len] = '\0'; - dprintf("got a message (%d, %#x)\n", nfd, len); - printline(LocalHostName, line); - - } else if (len < 0) { /* Got an error or signal while reading */ - if (errno != EINTR) /* */ - logerror("Receive error from UDP channel"); - - } else { /* (len == 0) Channel has been closed */ - logerror("UDP channel has closed"); - close(nfd); - die(-1); - } - } - if (kfd >= 0 && FD_ISSET(kfd, &fdset)) { - static char linebuf[5*1024]; - - /* Read a message from kernel (klog) */ - len = read(kfd, linebuf, sizeof(linebuf)-2); - dprintf("got a message (%d, %#x)\n", kfd, len); - for (ch = 0; ch < len; ch += 1) - if (linebuf[ch] == '\0') linebuf[ch] = ' '; - if (linebuf[len - 1] == '\n') len -= 1; - linebuf[len] = '\n'; - linebuf[len + 1] = '\0'; - p = linebuf; - while(eol = strchr(p, '\n')) { - *eol = '\0'; - printkline(LocalHostName, p); - p = eol+1; - } - } - } - /* Control never gets here */ -} - -/** syslogd.c **/