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QNX/services/syslogd/syslogd.c
dongl f6b2677c0f Initial commit
2025-08-20 19:02:58 +08:00

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/*
* $QNXtpLicenseC:
* Copyright 2007, QNX Software Systems. All Rights Reserved.
*
* You must obtain a written license from and pay applicable license fees to QNX
* Software Systems before you may reproduce, modify or distribute this software,
* or any work that includes all or part of this software. Free development
* licenses are available for evaluation and non-commercial purposes. For more
* information visit http://licensing.qnx.com or email licensing@qnx.com.
*
* This file may contain contributions from others. Please review this entire
* file for other proprietary rights or license notices, as well as the QNX
* Development Suite License Guide at http://licensing.qnx.com/license-guide/
* for other information.
* $
*/
/*
* Copyright (c) 1983, 1988 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, 1988 Regents of the University of California.\n\
All rights reserved.\n";
#endif /* not lint */
#if !defined(lint) && defined(NO_SCCSID)
static char sccsid[] = "@(#)syslogd.c 5.45 (Berkeley) 3/2/91";
#endif /* not lint */
/*
* syslogd -- log system messages
*
* This program implements a system log. It takes a series of lines.
* Each line may have a priority, signified as "<n>" 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.
* 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)
*/
// What's different is we accept QNX native msg. This is done
// within the select_recieve call. The original UDP stuff is
// still in here, so this will work with original syslog()
// lib routines. When hit with SIGHUP, we also try to
// establish the UDP port -- we stay up for QNX msgs if
// we can't do this originally. This allows syslogd to
// be started before Socket, and attach to it latter if necessary.
// All other address families besides AF_INET have been stripped
// out as well as anything else that doesn't "make sense" for QNX.
#define MAXLINE 1024 /* maximum line length */
#define MAXSVLINE 120 /* maximum saved line length */
#define DEFUPRI (LOG_USER|LOG_NOTICE)
#define DEFSPRI (LOG_KERN|LOG_CRIT)
#define TIMERINTVL 30 /* interval for checking flush, mark */
#define MSG_BSIZE (4096 - 3 * sizeof(long))
#define UT_NAMESIZE 14
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/uio.h>
#ifndef __QNXNTO__
#include <sys/errno.h>
#include <sys/un.h>
#include <sys/signal.h>
#include <sys/sidinfo.h>
#include <sys/kernel.h>
#include <sys/osinfo.h>
#include <sys/vc.h>
#include <sys/name.h>
#endif
#include <sys/param.h>
#include <sys/wait.h>
#include <sys/socket.h>
#include <sys/select.h>
#include <netinet/in.h>
#include <netdb.h>
#include <utmp.h>
#include <setjmp.h>
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <unistd.h>
#include "pathnames.h"
#define SYSLOG_NAMES
#include <syslog.h>
#include <unix.h>
#ifdef __QNXNTO__
#define fsync(x)
#include <sys/resmgr.h>
pthread_mutex_t synch_lock;
#endif
//char *LogName = _PATH_LOG;
char *ConfFile = _PATH_LOGCONF;
char *PidFile = _PATH_LOGPID;
char ctty[] = _PATH_CONSOLE;
#define FDMASK(fd) (1 << (fd))
#define dprintf if (Debug) printf
#define MAXUNAMES 20 /* maximum number of user names */
/*
* 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 LOG_INTERNAL_ERROR 0x010
/*
* 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 */
time_t f_failed_time;
int f_failures;
u_char f_pmask[LOG_NFACILITIES+1]; /* priority mask */
union {
char f_uname[MAXUNAMES][UT_NAMESIZE+1];
struct {
char f_hname[MAXHOSTNAMELEN+1];
struct sockaddr_in f_addr;
} f_forw; /* forwarding address */
char f_fname[MAXPATHLEN];
} 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 */
};
/*
* 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.
*/
int repeatinterval[] = { 30, 120, 600 }; /* # of secs before flush */
#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 */
char *TypeNames[7] = {
"UNUSED", "FILE", "TTY", "CONSOLE",
"FORW", "USERS", "WALL"
};
struct filed *Files;
struct filed consfile;
int Debug; /* debug flag */
char LocalHostName[MAXHOSTNAMELEN+1]; /* our hostname */
char *LocalDomain; /* our local domain name */
int InetInuse = 0; /* non-zero if INET sockets are being used */
int finet=-1; /* Internet datagram socket */
int LogPort; /* port number for INET connections */
int Initialized = 0; /* set when we have initialized ourselves */
int MarkInterval = 20 * 60; /* interval between marks in seconds */
int MarkSeq = 0; /* mark sequence number */
#ifdef __QNXNTO__
int threads = 5;
#endif
extern char *ctime();
extern int errno;
int S=0;
void sighup( int signo){
S++;
}
#ifndef __QNXNTO__
int write_messages(nid_t node, struct filed *f, char *msg, int msg_len);
int daemon(int, int);
#endif
int decode(char *name, CODE *codetab);
int usage(void);
void *nto_main(void *x);
int logerror(char *type);
int fprintlog(struct filed *f, int flags, char *msg);
int printline(char *hname, char *msg);
int logmsg(int pri, char *msg, char *from, int flags);
int wallmsg(struct filed *f, struct iovec *iov);
int cfline(char *line, struct filed *f);
int
main(argc, argv)
int argc;
char **argv;
{
long inetm=0;
register int i;
register char *p;
int len;
struct sockaddr_in sin, frominet;
FILE *fp;
int ch;
char line[MSG_BSIZE + 1];
long omask;
extern int optind;
extern char *optarg;
void die(), domark(), init(), reapchild();
#ifdef __QNXNTO__
while ((ch = getopt(argc, argv, "df:m:t:")) != EOF)
#else
while ((ch = getopt(argc, argv, "df:m:")) != EOF)
#endif
switch((char)ch) {
case 'd': /* debug */
Debug++;
break;
case 'f': /* configuration file */
ConfFile = optarg;
break;
case 'm': /* mark interval */
MarkInterval = atoi(optarg) * 60;
break;
#ifdef __QNXNTO__
case 't':
threads = atoi(optarg);
break;
#endif
case '?':
default:
usage();
}
if (argc -= optind)
usage();
if (!Debug)
daemon(0, 0);
else
setvbuf(stdout, 0, _IOLBF, 0);
omask = sigblock(sigmask(SIGHUP)|sigmask(SIGALRM));
(void) signal(SIGTERM, die);
#ifndef __QNXNTO__
(void) signal(SIGINT, Debug ? die : SIG_IGN);
#endif
(void) signal(SIGQUIT, Debug ? die : SIG_IGN);
(void) signal(SIGCHLD, reapchild);
(void) signal(SIGALRM, domark);
(void) alarm(TIMERINTVL);
// (void) unlink(LogName);
#ifndef __QNXNTO__
if (qnx_name_attach( 0, "qnx/syslogd" ) == -1){
perror("qnx_name_attach( qnx/syslogd )");
exit(1);
}
#else
pthread_mutex_init( &synch_lock, NULL );
pthread_create(NULL,NULL, nto_main, NULL);
#endif
/* tuck my process id away */
fp = fopen(PidFile, "w");
if (fp != NULL) {
fprintf(fp, "%d\n", getpid());
(void) fclose(fp);
}
signal(SIGHUP, sighup);
sig_HUP:
sigblock(sigmask(SIGHUP)|sigmask(SIGALRM));
// got hit with SIGHUP (unless first time thru) so try to
// establish UDP socket again if first one failed.
if (!InetInuse){
consfile.f_type = F_CONSOLE;
(void) strcpy(consfile.f_un.f_fname, ctty);
(void) gethostname(LocalHostName, sizeof LocalHostName);
if (p = index(LocalHostName, '.')) {
*p++ = '\0';
LocalDomain = p;
}
else
LocalDomain = "";
bzero((char *)&sin, sizeof(sin));
finet = socket(AF_INET, SOCK_DGRAM, 0);
if (finet >= 0) {
struct servent *sp;
sp = getservbyname("syslog", "udp");
if (sp == NULL) {
errno = 0;
logerror("syslog/udp: unknown service");
// die(0);
close(finet);
goto out;
}
if (setsockopt(finet, SOL_SOCKET, SO_REUSEADDR,
(char *) &finet, sizeof(finet)) < 0)
logerror("setsockopt");
sin.sin_family = AF_INET;
sin.sin_port = LogPort = sp->s_port;
if (bind(finet, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
logerror("bind");
close(finet);
if (!Debug)
//die(0);
goto out;
} else {
inetm = FDMASK(finet);
InetInuse = 1;
dprintf("socket open...\n");
}
}
} //InetInuse
dprintf("off & running....\n");
out:
#ifdef __QNXNTO__
pthread_mutex_lock( &synch_lock );
#endif
init();
#ifdef __QNXNTO__
pthread_mutex_unlock( &synch_lock );
#endif
for (;;) {
long readfds = inetm;
int nfds;
if (S){
S--;
goto sig_HUP;
}
errno = 0;
readfds = inetm;
dprintf("readfds = %#lx\n", readfds);
(void) sigsetmask(omask);
nfds = select(20, (fd_set *) &readfds, (fd_set *) NULL,
(fd_set *) NULL, (struct timeval *) NULL);
if (nfds == 0)
continue;
if (nfds < 0) {
if (errno == EBADF || errno == ESRCH){
InetInuse = 0;
inetm=0;
close(finet);
dprintf("closing socket...\n");
//die(0);
}
if (errno != EINTR)
logerror("select");
if (S){
S--;
goto sig_HUP;
}
continue;
}
sigblock(sigmask(SIGHUP)|sigmask(SIGALRM));
dprintf("got a message (%d, %#lx)\n", nfds, readfds);
if (readfds & inetm) {
len = sizeof frominet;
i = recvfrom(finet, line, MAXLINE, 0,
(struct sockaddr *) &frominet, &len);
if (i > 0) {
extern char *cvthname();
line[i] = '\0';
printline(cvthname(&frominet), line);
} else if (i < 0 && errno != EINTR)
logerror("recvfrom inet");
}
}
return 0;
}
int
usage(void)
{
(void) fprintf(stderr,
#ifdef __QNXNTO__
"usage: syslogd [-f conffile] [-m markinterval] [-t threads]\n");
#else
"usage: syslogd [-f conffile] [-m markinterval] \n");
#endif
exit(1);
return 0;
}
/*
* Take a raw input line, decode the message, and print the message
* on the appropriate log files.
*/
int
printline(hname, msg)
char *hname;
char *msg;
{
register char *p, *q;
register int c;
char line[MAXLINE + 1];
int pri;
#ifdef __QNXNTO__
pthread_mutex_lock( &synch_lock );
#endif
/* test for special codes */
pri = DEFUPRI;
p = msg;
if (*p == '<') {
pri = 0;
while (isdigit(*++p))
pri = 10 * pri + (*p - '0');
if (*p == '>')
++p;
}
if (pri &~ (LOG_FACMASK|LOG_PRIMASK))
pri = DEFUPRI;
/* don't allow users to log kernel messages */
if (LOG_FAC(pri) == LOG_KERN)
pri = LOG_MAKEPRI(LOG_USER, LOG_PRI(pri));
q = line;
while ((c = *p++ & 0177) != '\0' &&
q < &line[sizeof(line) - 1])
if (iscntrl(c))
if (c == '\n')
*q++ = ' ';
else if (c == '\t')
*q++ = '\t';
else {
*q++ = '^';
*q++ = c ^ 0100;
}
else
*q++ = c;
*q = '\0';
logmsg(pri, line, hname, 0);
#ifdef __QNXNTO__
pthread_mutex_unlock( &synch_lock );
#endif
return 0;
}
/*
* Take a raw input line from /dev/klog, split and format similar to syslog().
*/
int
printsys(msg)
char *msg;
{
register char *p, *q;
register int c;
char line[MAXLINE + 1];
int pri, flags;
char *lp;
(void) strcpy(line, "vmunix: ");
lp = line + strlen(line);
for (p = msg; *p != '\0'; ) {
flags = SYNC_FILE | ADDDATE; /* fsync file after write */
pri = DEFSPRI;
if (*p == '<') {
pri = 0;
while (isdigit(*++p))
pri = 10 * pri + (*p - '0');
if (*p == '>')
++p;
} else {
/* kernel printf's come out on console */
flags |= IGN_CONS;
}
if (pri &~ (LOG_FACMASK|LOG_PRIMASK))
pri = DEFSPRI;
q = lp;
while (*p != '\0' && (c = *p++) != '\n' &&
q < &line[MAXLINE])
*q++ = c;
*q = '\0';
logmsg(pri, line, LocalHostName, flags);
}
return 0;
}
time_t now;
/*
* Log a message to the appropriate log files, users, etc. based on
* the priority.
*/
int
logmsg(pri, msg, from, flags)
int pri;
char *msg, *from;
int flags;
{
register struct filed *f;
int fac=0, prilev, msglen;
char *timestamp;
time_t time();
dprintf("logmsg: pri %o, flags %x, from %s, msg %s\n",
pri, flags, from, msg);
/*
* 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;
(void) time(&now);
if (flags & ADDDATE)
timestamp = ctime(&now) + 4;
else {
timestamp = msg;
msg += 16;
msglen -= 16;
}
/* extract facility and priority level */
if (flags & MARK)
fac = LOG_NFACILITIES;
else
fac = LOG_FAC(pri);
prilev = LOG_PRI(pri);
/* log the message to the particular outputs */
if (!Initialized) {
f = &consfile;
f->f_file = open(ctty, O_WRONLY, 0);
if (f->f_file >= 0) {
fprintlog(f, flags, msg);
(void) close(f->f_file);
}
return 0;
}
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)) {
(void) strncpy(f->f_lasttime, timestamp, 15);
f->f_prevcount++;
dprintf("msg repeated %d times, %d 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;
(void) strncpy(f->f_lasttime, timestamp, 15);
(void) strncpy(f->f_prevhost, from,
sizeof(f->f_prevhost));
if (msglen < MAXSVLINE) {
f->f_prevlen = msglen;
f->f_prevpri = pri;
(void) strcpy(f->f_prevline, msg);
fprintlog(f, flags, (char *)NULL);
} else {
f->f_prevline[0] = 0;
f->f_prevlen = 0;
fprintlog(f, flags, msg);
}
}
}
return 0;
}
int
fprintlog(f, flags, msg)
register struct filed *f;
int flags;
char *msg;
{
struct iovec iov[6];
register struct iovec *v;
register int l;
int reopencnt, sigrepcnt, i;
char line[MAXLINE + 1], repbuf[80], greetings[200];
v = iov;
memset( v, 0, sizeof( struct iovec ) * 6 );
if ((f->f_type == F_WALL) || (f->f_type == F_USERS )) {
v->iov_base = greetings;
v->iov_len = sprintf(greetings,
"\r\n\7Message from syslogd@%s at %.24s ...\r\n",
f->f_prevhost, ctime(&now));
v++;
v->iov_base = "";
v->iov_len = 0;
v++;
} else {
v->iov_base = f->f_lasttime;
v->iov_len = 15;
v++;
v->iov_base = " ";
v->iov_len = 1;
v++;
}
v->iov_base = f->f_prevhost;
v->iov_len = strlen(v->iov_base);
v++;
v->iov_base = " ";
v->iov_len = 1;
v++;
if (msg) {
v->iov_base = msg;
v->iov_len = strlen(msg);
} else if (f->f_prevcount > 1) {
v->iov_base = repbuf;
v->iov_len = sprintf(repbuf, "last message repeated %d times",
f->f_prevcount);
} else {
v->iov_base = f->f_prevline;
v->iov_len = f->f_prevlen;
}
v++;
dprintf("Logging to %s", TypeNames[f->f_type]);
f->f_time = now;
if (flags & LOG_INTERNAL_ERROR &&
f->f_failed_time == time(NULL) ) {
dprintf(" **** recursion detected: can't log [%s]\n", (char *)iov[4].iov_base);
return 0;
}
switch (f->f_type) {
case F_UNUSED:
dprintf("\n");
break;
case F_FORW:
dprintf(" %s\n", f->f_un.f_forw.f_hname);
l = sprintf(line, "<%d>%.15s %s", f->f_prevpri,
(char *)iov[0].iov_base, (char *)iov[4].iov_base);
if (l > MAXLINE)
l = MAXLINE;
i= 0;
do{
if (sendto(finet, line, l, 0,
(struct sockaddr *)&f->f_un.f_forw.f_addr,
sizeof f->f_un.f_forw.f_addr) != l) {
f->f_failed_time= time(NULL);
f->f_failures++;
logerror("sendto");
errno = 0;
logerror("possible duplicate message");
} else break;
} while( i++ < 4 );
//if ( i >= 4 )
// f->f_type= F_UNUSED;
break;
case F_CONSOLE:
if (flags & IGN_CONS) {
dprintf(" (ignored)\n");
break;
}
/* FALLTHROUGH */
case F_TTY:
case F_FILE:
dprintf(" %s\n", f->f_un.f_fname);
if (f->f_type != F_FILE) {
v->iov_base = "\r\n";
v->iov_len = 2;
} else {
v->iov_base = "\n";
v->iov_len = 1;
}
reopencnt= 0;
sigrepcnt= 0;
again:
if (writev(f->f_file, iov, 6) < 0) {
int e = errno;
if (e != EINTR || ++sigrepcnt > 3) {
(void) close(f->f_file);
} else {
f->f_failed_time= time(NULL);
f->f_failures++;
logerror(f->f_un.f_fname);
errno = 0;
logerror("possible duplicate message");
goto again; /* try again */
}
/*
* Check for errors on TTY's due to loss of tty
*/
if ((e == EIO || e == EBADF) && f->f_type != F_FILE) {
reopencnt++;
f->f_file = open(f->f_un.f_fname,
O_WRONLY|O_APPEND, 0);
if (f->f_file < 0) {
f->f_type = F_UNUSED;
logerror(f->f_un.f_fname);
} else if (reopencnt < 3)
goto again;
} else {
f->f_type = F_UNUSED;
errno = e;
logerror(f->f_un.f_fname);
}
} else if (flags & SYNC_FILE)
fsync(f->f_file);
break;
#ifndef __QNXNTO__
case F_USERS:
case F_WALL:
dprintf("\n");
v->iov_base = "\r\n";
v->iov_len = 2;
wallmsg(f, iov);
break;
#endif
}
f->f_prevcount = 0;
return 0;
}
/*
* WALLMSG -- Write a message to the world at large
*
* Write the specified message to either the entire
* world, or a list of approved users.
*/
#ifndef __QNXNTO__
int
wallmsg(f, iov)
register struct filed *f;
struct iovec *iov;
{
static int reenter; /* avoid calling ourselves */
register int i;
char *message;
int message_len = 0;
struct _osinfo osinfo;
int max_node = 0;
char *nid_stat;
qnx_osinfo( 0, &osinfo );
max_node = osinfo.max_nodes + 1;
if (reenter++)
return 0;
for (i=0; i<6; i++){
message_len += iov[i].iov_len;
}
if ((message = malloc(message_len+2)) == NULL){
logerror("wallmsg: malloc()");
//fprintf(stderr, "msg_len[%d]\n", message_len);
reenter = 0;
return 0;
}
memset( message, 0, message_len );
for (i=0; i<6; i++){
strncat( message, iov[i].iov_base, iov[i].iov_len );
//fprintf(stderr,"message[%s]\n", message);
}
if ((nid_stat = calloc( max_node, 1)) == NULL){
logerror("wallmsg: calloc()");
reenter = 0;
free(message);
return 0;
}
qnx_net_alive( nid_stat, max_node );
if (fork() == 0){
for(i=1; i<=max_node; i++)
if (nid_stat[i])
write_message( (nid_t)i, (f->f_type == F_WALL) ? NULL : f, message, message_len );
exit(0);
}
else{
reenter = 0;
free(message);
free(nid_stat);
return 0;
}
return 0;
}
#endif
#ifndef __QNXNTO__
int write_message(nid_t node, struct filed *f, char *msg, int msg_len){
int errs=0,i;
nid_t nid = node;
pid_t vid;
int sid;
FILE *tfp;
struct _sidinfo sidinfo;
char *tty;
static char usr_msgs[256];
struct _osinfo osinfo;
int match = 0;
int test_mode = 0;
if ((vid = qnx_vc_attach(nid, PROC_PID, 0, 0)) == -1)
return(errno);
qnx_osinfo( vid, &osinfo );
/* skip session zero (System) */
for (sid = 1; sid <= osinfo.num_sessions; ++sid) {
match = 0;
if ((sid = qnx_sid_query(vid, sid, &sidinfo)) == -1)
break;
tty = sidinfo.tty_name;
if (*tty == 0 || strcmp(tty, "none") == 0)
continue;
/* should we send the message to this user? */
if (f){
for (i = 0; i < MAXUNAMES; i++) {
if (!f->f_un.f_uname[i][0])
break;
if (!strncmp(f->f_un.f_uname[i], sidinfo.name, 15)) {
match++;
break;
}
}
}
else // f was NULL -- send to all users
match++;
if (!match){
//fprintf(stderr,"m[%s] node[%d] sid[%d]\n", msg, nid, sid);
continue;
}
//fprintf(stderr,"MATCH: m[%s] node[%d] sid[%d]\n", msg, nid, sid);
if ((tfp = fopen(tty, "w")) == 0) {
i=sprintf(usr_msgs, "%s: cannot send to %s (%s)\n", "write_message()", sidinfo.name, tty);
logerror(usr_msgs);
continue;
}
if (!test_mode) {
fcntl(fileno(tfp), F_SETFL, O_NONBLOCK | fcntl(fileno(tfp), F_GETFL));
// fprintf(tfp, "\a\aBroadcast message from %s (%s) at %s...\r\n", user, term, stamp);
fprintf(tfp, msg);
fputs("EOT\r\n", tfp);
}
fclose(tfp);
}
qnx_vc_detach(vid);
return (errs?-1:0);
}
#endif
#if 0
wallmsg(f, iov)
register struct filed *f;
struct iovec *iov;
{
static int reenter; /* avoid calling ourselves */
register FILE *uf;
register int i;
struct utmp ut;
char *p, *ttymsg();
if (reenter++)
return;
if ((uf = fopen(_PATH_UTMP, "r")) == NULL) {
logerror(_PATH_UTMP);
reenter = 0;
return;
}
/* NOSTRICT */
while (fread((char *) &ut, sizeof ut, 1, uf) == 1) {
if (ut.ut_name[0] == '\0')
continue;
if (f->f_type == F_WALL) {
if (p = ttymsg(iov, 6, ut.ut_line, 1)) {
errno = 0; /* already in msg */
logerror(p);
}
continue;
}
/* should we send the message to this user? */
for (i = 0; i < MAXUNAMES; i++) {
if (!f->f_un.f_uname[i][0])
break;
if (!strncmp(f->f_un.f_uname[i], ut.ut_name,
UT_NAMESIZE)) {
if (p = ttymsg(iov, 6, ut.ut_line, 1)) {
errno = 0; /* already in msg */
logerror(p);
}
break;
}
}
}
(void) fclose(uf);
reenter = 0;
}
#endif
void
reapchild()
{
int status;
while (waitpid(-1, (int *)&status, WNOHANG) > 0)
;
}
/*
* Return a printable representation of a host address.
*/
char *
cvthname(f)
struct sockaddr_in *f;
{
struct hostent *hp;
register char *p;
extern char *inet_ntoa();
dprintf("cvthname(%s)\n", inet_ntoa(f->sin_addr));
if (f->sin_family != AF_INET) {
dprintf("Malformed from address\n");
return ("???");
}
hp = gethostbyaddr((char *)&f->sin_addr,
sizeof(struct in_addr), f->sin_family);
if (hp == 0) {
dprintf("Host name for your address (%s) unknown\n",
inet_ntoa(f->sin_addr));
return (inet_ntoa(f->sin_addr));
}
if ((p = index(hp->h_name, '.')) && strcmp(p + 1, LocalDomain) == 0)
*p = '\0';
return (hp->h_name);
}
void
domark()
{
register struct filed *f;
time_t time();
now = time((time_t *)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)) {
dprintf("flush %s: repeated %d times, %d sec.\n",
TypeNames[f->f_type], f->f_prevcount,
repeatinterval[f->f_repeatcount]);
fprintlog(f, 0, (char *)NULL);
BACKOFF(f);
}
}
(void) alarm(TIMERINTVL);
}
/*
* Print syslogd errors some place.
*/
int
logerror(type)
char *type;
{
char buf[100], *strerror();
if (errno)
(void) sprintf(buf, "syslogd: %s: %s", type, strerror(errno));
else
(void) sprintf(buf, "syslogd: %s", type);
errno = 0;
dprintf("%s\n", buf);
logmsg(LOG_SYSLOG|LOG_ERR, buf, LocalHostName, ADDDATE|LOG_INTERNAL_ERROR);
return 0;
}
void
die(sig)
{
register 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, (char *)NULL);
}
if (sig) {
dprintf("syslogd: exiting on signal %d\n", sig);
(void) sprintf(buf, "exiting on signal %d", sig);
errno = 0;
logerror(buf);
}
//(void) unlink(LogName);
exit(0);
}
/*
* INIT -- Initialize syslogd from configuration table
*/
void
init()
{
register int i;
register FILE *cf;
register struct filed *f, *next, **nextp;
register char *p;
char cline[BUFSIZ];
dprintf("init\n");
/*
* Close all open log files.
*/
Initialized = 0;
for (f = Files; f != NULL; f = next) {
/* flush any pending output */
if (f->f_prevcount)
fprintlog(f, 0, (char *)NULL);
switch (f->f_type) {
case F_FILE:
case F_TTY:
case F_CONSOLE:
case F_FORW:
(void) close(f->f_file);
break;
}
next = f->f_next;
free((char *) f);
}
Files = NULL;
nextp = &Files;
/* open the configuration file */
if ((cf = fopen(ConfFile, "r")) == NULL) {
dprintf("cannot open %s\n", ConfFile);
*nextp = (struct filed *)calloc(1, sizeof(*f));
cfline("*.ERR\t/dev/console", *nextp);
(*nextp)->f_next = (struct filed *)calloc(1, sizeof(*f));
cfline("*.PANIC\t*", (*nextp)->f_next);
Initialized = 1;
return;
}
/*
* Foreach line in the conf table, open that file.
*/
f = 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);
if (*p == NULL || *p == '#')
continue;
for (p = index(cline, '\0'); isspace(*--p););
*++p = '\0';
f = (struct filed *)calloc(1, sizeof(*f));
*nextp = f;
nextp = &f->f_next;
cfline(cline, f);
}
/* close the configuration file */
(void) fclose(cf);
Initialized = 1;
if (Debug) {
for (f = Files; f; f = f->f_next) {
for (i = 0; i <= LOG_NFACILITIES; i++)
if (f->f_pmask[i] == INTERNAL_NOPRI)
printf("X ");
else
printf("%d ", f->f_pmask[i]);
printf("%s: ", TypeNames[f->f_type]);
switch (f->f_type) {
case F_FILE:
case F_TTY:
case F_CONSOLE:
printf("%s", f->f_un.f_fname);
break;
case F_FORW:
printf("%s", f->f_un.f_forw.f_hname);
break;
case F_USERS:
for (i = 0; i < MAXUNAMES && *f->f_un.f_uname[i]; i++)
printf("%s, ", f->f_un.f_uname[i]);
break;
}
printf("\n");
}
}
logmsg(LOG_SYSLOG|LOG_INFO, "syslogd: restart", LocalHostName, ADDDATE);
dprintf("syslogd: restarted\n");
}
/*
* Crack a configuration file line
*/
int
cfline(line, f)
char *line;
register struct filed *f;
{
register char *p;
register char *q;
register int i;
char *bp;
int pri;
struct hostent *hp;
char buf[MAXLINE], ebuf[100];
dprintf("cfline(%s)\n", line);
errno = 0; /* keep strerror() stuff out of logerror messages */
/* clear out file entry */
bzero((char *) f, sizeof *f);
for (i = 0; i <= LOG_NFACILITIES; i++)
f->f_pmask[i] = 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 && !index("\t,;", *q); )
*bp++ = *q++;
*bp = '\0';
/* skip cruft */
while (index(", ;", *q))
q++;
/* decode priority name */
if (*buf == '*')
pri = LOG_PRIMASK + 1;
else {
pri = decode(buf, prioritynames);
if (pri < 0) {
(void) sprintf(ebuf,
"unknown priority name \"%s\"", buf);
logerror(ebuf);
return -1;
}
}
/* scan facilities */
while (*p && !index("\t.;", *p)) {
for (bp = buf; *p && !index("\t,;.", *p); )
*bp++ = *p++;
*bp = '\0';
if (*buf == '*')
for (i = 0; i < LOG_NFACILITIES; i++)
f->f_pmask[i] = pri;
else {
i = decode(buf, facilitynames);
if (i < 0) {
(void) sprintf(ebuf,
"unknown facility name \"%s\"",
buf);
logerror(ebuf);
return -1;
}
f->f_pmask[i >> 3] = pri;
}
while (*p == ',' || *p == ' ')
p++;
}
p = q;
}
/* skip to action part */
while (*p == '\t')
p++;
switch (*p)
{
case '@':
if (!InetInuse)
break;
(void) strcpy(f->f_un.f_forw.f_hname, ++p);
hp = gethostbyname(p);
if (hp == NULL) {
char buf[80];
sprintf(buf, "Resolver error %d", (u_int)h_errno);
logerror(buf);
break;
}
bzero((char *) &f->f_un.f_forw.f_addr,
sizeof f->f_un.f_forw.f_addr);
f->f_un.f_forw.f_addr.sin_family = AF_INET;
f->f_un.f_forw.f_addr.sin_port = LogPort;
bcopy(hp->h_addr, (char *) &f->f_un.f_forw.f_addr.sin_addr, hp->h_length);
f->f_type = F_FORW;
break;
case '/':
(void) strcpy(f->f_un.f_fname, p);
if ((f->f_file = open(p, O_WRONLY|O_APPEND, 0)) < 0) {
f->f_file = F_UNUSED;
logerror(p);
break;
}
if (isatty(f->f_file))
f->f_type = F_TTY;
else
f->f_type = F_FILE;
if (strcmp(p, ctty) == 0)
f->f_type = F_CONSOLE;
break;
case '*':
f->f_type = F_WALL;
break;
default:
for (i = 0; i < MAXUNAMES && *p; i++) {
for (q = p; *q && *q != ','; )
q++;
(void) strncpy(f->f_un.f_uname[i], p, UT_NAMESIZE);
if ((q - p) > UT_NAMESIZE)
f->f_un.f_uname[i][UT_NAMESIZE] = '\0';
else
f->f_un.f_uname[i][q - p] = '\0';
while (*q == ',' || *q == ' ')
q++;
p = q;
}
f->f_type = F_USERS;
break;
}
return 0;
}
/*
* Decode a symbolic name to a numeric value
*/
int
decode(name, codetab)
char *name;
CODE *codetab;
{
register CODE *c;
register char *p;
char buf[40];
if (isdigit(*name))
return (atoi(name));
(void) strcpy(buf, name);
for (p = buf; *p; p++)
if (isupper(*p))
*p = tolower(*p);
for (c = codetab; c->c_name; c++)
if (!strcmp(buf, c->c_name))
return (c->c_val);
return (-1);
}
#if (defined(__QNX__)) && (!defined(__QNXNTO__))
#include <sys/psinfo.h>
#include <sys/kernel.h>
char *
pidtoname(pid_t pid) {
struct _psinfo ps;
static char ret[20];
if(( qnx_psinfo( PROC_PID, pid, &ps, 0, 0 ) == -1 ) || (pid != ps.pid) )
return "node<<???>>";
if( ps.flags & _PPF_VID )
sprintf( ret, "node<<%d>>", ps.un.vproc.remote_nid );
else
sprintf( ret, "node<<%d>>", getnid());
return ret;
}
pid_t
_select_receive(pid_t proxy) {
char line[MSG_BSIZE + 1];
pid_t pid;
memset( line, 0, sizeof line );
while( (pid = Receive( 0, &line, sizeof line - 1 )) != -1 ) {
if( pid == proxy ) break;
Reply( pid, NULL, 0 );
dprintf("got msg...\n");
/* sanity check the line */
if( line[0] != '<' || !isdigit(line[1]) )
continue;
printline(pidtoname(pid), line);
memset( line, 0, sizeof line );
}
return pid;
}
#endif
#ifdef __QNXNTO__
#include <sys/dispatch.h>
#include <sys/iofunc.h>
#include <sys/neutrino.h>
int io_write(resmgr_context_t *ctp, io_write_t *msg, void *notused){
char *p;
int len;
p= (char *) ((char *)&(msg->i) + sizeof(msg->i));
len= msg->i.nbytes;
if(len >= ctp->msg_max_size - sizeof(msg->i))
{
len = ctp->msg_max_size - sizeof(msg->i);
if(p[len-1] != '\0')
{
p[len-1] = '\0';
len--;
}
}
else
p[len] = '\0';
MsgReplyv( ctp->rcvid, len, NULL, 0);
printline( "nto", p );
return(_RESMGR_NOREPLY);
}
iofunc_attr_t attr;
void *
nto_main(void *x){
int major= 1;
resmgr_connect_funcs_t iofunc_connect_funcs_default;
resmgr_io_funcs_t iofunc_io_funcs_default;
resmgr_attr_t resmgr_attr;
thread_pool_attr_t pool_attr;
dispatch_t *dpp;
thread_pool_t *tpp;
x = x; /* not ref'd */
memset(&resmgr_attr, 0, sizeof(resmgr_attr));
resmgr_attr.nparts_max = 1;
resmgr_attr.msg_max_size = 2048;
dpp = dispatch_create();
if (dpp == NULL) {
perror("dispatch_create");
exit(1);
}
memset(&pool_attr, 0, sizeof(pool_attr));
pool_attr.handle = dpp;
// We are only doing resmgr-type attach
pool_attr.context_alloc = resmgr_context_alloc;
pool_attr.block_func = resmgr_block;
pool_attr.handler_func = resmgr_handler;
pool_attr.context_free = resmgr_context_free;
pool_attr.lo_water = 2;
pool_attr.hi_water = 15;
pool_attr.increment = 1;
pool_attr.maximum= threads;
if((tpp = thread_pool_create(&pool_attr, POOL_FLAG_USE_SELF)) == NULL) {
perror("thread_pool_create");
exit(1);
}
iofunc_func_init(_RESMGR_CONNECT_NFUNCS, &iofunc_connect_funcs_default,
_RESMGR_IO_NFUNCS, &iofunc_io_funcs_default);
iofunc_attr_init(&attr, 0666 | S_IFCHR, 0, 0);
attr.rdev= makedev(rand(), major, 1);
iofunc_io_funcs_default.write= io_write;
if( resmgr_attach( dpp, &resmgr_attr, _PATH_LOG, _FTYPE_ANY,
0, &iofunc_connect_funcs_default,
&iofunc_io_funcs_default, &attr) == -1) {
perror("resmgr_attach");
exit(1);
}
return (void *)thread_pool_start(tpp);
}
#endif
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