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syslog2b.zip
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syslogd.c
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1996-12-02
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/*
** Modified by Jochen Friedrich <jochen@audio.pfalz.de> for OS/2.
*/
/* $Revision: 1.9 $
** This file has been modified to get it to compile more easily
** on pre-4.4BSD (e.g., SysVr4 :-) systems. Rich $alz, June 1991.
*/
#define WAITVALUE int
/*
* 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.
*
* Wed Sep 14 21:56:59 1994: Applied patches from Alan Modra
* (alan@spri.levels.unisa.edu.au):
* 1) Add O_CREAT to open flags so that syslogd doesn't complain about
* non-existent files
* 2) Modified f_pmask initialisation and testing to allow logging of
* messages at a particular priority level, rather that all messages
* at or above a given priority level.
*
* Sat Jun 3 12:48:16 1995: Applied patches from
* Jochen.Hein@informatik.tu-clausthal.de to allow spaces *AND* tabs to
* separate the selector from the action. This means that no whitespace is
* allowed inside the selector.
* */
/*
* 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)
*/
#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 INCL_DOS
#include <os2.h>
#include <errno.h>
#include <signal.h>
#include <process.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <netinet/in.h>
#include <netdb.h>
#include <stdio.h>
#include <io.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#include <types.h>
#include "getopt.h"
#include "fix_env.h"
#define MSG_BSIZE 4096
#define SYSLOG_NAMES
#include "syslog.h"
#define UT_NAMESIZE 8
char ConfFile[512]="c:\\etc\\syslog.cnf";
char PidFile[512]="c:\\etc\\syslog.pid";
#define dprintf if (Debug) printf
#define MAXUNAMES 20 /* maximum number of user names */
#include <fcntl.h>
void setlinebuf(FILE *f)
{
setbuf(f, (char *)NULL);
}
int our_writev(int fd, struct iovec iov[], int vcount)
{
int i;
for (i=0;i<vcount ;i++)
{
write(fd,iov[i].iov_base,iov[i].iov_len);
} /* endfor */
}
/*
* 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 */
/*
* This structure represents the files that will have log
* copies printed.
*/
struct filed {
struct filed *f_nextone; /* 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][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 */
char *TypeNames[5] = {
"UNUSED", "FILE", "TTY", "CONSOLE",
"FORW"
};
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; /* 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 */
void init(int);
void die(int);
void domark(void *v);
void usage(void);
void logerror(char *);
int main(int argc, char **argv)
{
register int i;
register char *p;
int len;
struct sockaddr_in sin, frominet;
FILE *fp;
int ch;
char line[MSG_BSIZE + 1];
extern int optind;
extern char *optarg;
fix_env(PidFile,"ETC");
fix_env(ConfFile,"ETC");
if (sock_init()) exit(-1);
while ((ch = getopt(argc, argv, "df:m:")) != EOF)
switch((char)ch) {
case 'd': /* debug */
Debug++;
break;
case 'f': /* configuration file */
strcpy(ConfFile,optarg);
break;
case 'm': /* mark interval */
MarkInterval = atoi(optarg) * 60;
break;
case '?':
default:
usage();
}
if (argc -= optind)
usage();
setlinebuf(stdout);
consfile.f_type = F_CONSOLE;
(void) strcpy(consfile.f_un.f_fname, "CON");
strcpy(LocalHostName,getenv("HOSTNAME"));
if (p = strchr(LocalHostName, '.')) {
*p++ = '\0';
LocalDomain = p;
}
else
LocalDomain = "";
(void) signal(SIGTERM, die);
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);
}
bzero((char *)&sin, sizeof(sin)); /* added uunet!rbj */
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = INADDR_ANY;
sin.sin_port = LogPort = htons(sp->s_port);
if (bind(finet, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
logerror("bind");
if (!Debug)
die(0);
} else {
InetInuse = 1;
}
}
/* tuck my process id away */
fp = fopen(PidFile, "w");
if (fp != NULL) {
fprintf(fp, "%d\n", getpid());
(void) fclose(fp);
}
i= _beginthread(domark, NULL, 8192, NULL);
dprintf("thread 2 started TID=%d...\n",i);
dprintf("off & running....\n");
init(0);
for (;;) {
errno = 0;
len = sizeof frominet;
i = recvfrom(finet, line, MAXLINE, 0,
(struct sockaddr * ) &frominet, &len);
if (i > 0) {
extern char *cvthname();
line[i] = '\0';
printmulti(cvthname(&frominet), line,i);
} else if (i < 0 && errno != EINTR)
logerror("recvfrom inet");
}
}
void usage(void)
{
(void) fprintf(stderr,
"usage: syslogd [-d] [-f conffile] [-m markinterval]\n");
exit(1);
}
/*
* Break up null terminated lines for printline.
*/
printmulti(char *hname, char *msg, int len)
{
int i;
char *pt;
dprintf("strlen = %d, len = %d\n", strlen(msg), len );
for (pt = msg, i = 0; i <= len; i++) {
if (msg[i] == '\0') {
printline(hname,pt);
pt = &msg[i+1];
}
}
}
/*
* Take a raw input line, decode the message, and print the message
* on the appropriate log files.
*/
printline(char *hname, char *msg)
{
register char *p, *q;
register int c;
char line[MAXLINE + 1];
int pri;
/* 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 == '\r')
*q++ = ' ';
else if (c == '\t')
*q++ = '\t';
else {
*q++ = '^';
*q++ = c ^ 0100;
}
else
*q++ = c;
*q = '\0';
logmsg(pri, line, hname, 0);
}
time_t now;
/*
* Log a message to the appropriate log files, users, etc. based on
* the priority.
*/
logmsg(int pri, char *msg, char *from, int flags)
{
register struct filed *f;
int fac, prilev;
int omask, 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 = (char*)((int)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 = 1 << (LOG_PRIMASK - LOG_PRI(pri));
/* log the message to the particular outputs */
if (!Initialized) {
f = &consfile;
f->f_file = _open("CON", O_WRONLY, 0);
if (f->f_file >= 0) {
fprintlog(f, flags, msg);
(void) _close(f->f_file);
}
return;
}
for (f = Files; f; f = f->f_nextone) {
/* skip messages that are incorrect priority */
if (!(f->f_pmask[fac] & prilev))
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, %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;
(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);
}
}
}
}
fprintlog(struct filed *f, int flags, char *msg)
{
struct iovec iov[6];
register struct iovec *v;
register int l;
char line[MAXLINE + 1], repbuf[80], greetings[200];
v = iov;
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;
sprintf(repbuf, "last message repeated %d times",
f->f_prevcount);
v->iov_len = strlen(repbuf);
} 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;
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;
if (errno=sendto(finet, line, l, 0, (struct sockaddr*)(&f->f_un.f_forw.f_addr),
sizeof f->f_un.f_forw.f_addr) != l) {
int e = errno;
(void) soclose(f->f_file);
f->f_type = F_UNUSED;
errno = e;
logerror("sendto");
}
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;
}
again:
if (our_writev(f->f_file, iov, 6) < 0) {
int e = errno;
(void) _close(f->f_file);
/*
* Check for errors on TTY's due to loss of tty
*/
f->f_type = F_UNUSED;
errno = e;
logerror(f->f_un.f_fname);
}
/* fsync(f->f_file); */
break;
}
f->f_prevcount = 0;
}
/*
* Return a printable representation of a host address.
*/
char * cvthname(struct sockaddr_in *f)
{
struct hostent * hp;
register char *p;
dprintf("cvthname(%s)\n", (char *) 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",
(char *) inet_ntoa(f->sin_addr));
return (inet_ntoa(f->sin_addr));
}
if ((p = strchr(hp->h_name, '.')) && strcmp(p + 1, LocalDomain) == 0)
*p = '\0';
return (hp->h_name);
}
void domark(void *v)
{
for (;;) {
register struct filed *f;
DosSleep(TIMERINTVL*1000);
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_nextone) {
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);
}
}
} /* endfor */
}
/*
* Print syslogd errors some place.
*/
void logerror(char *type)
{
char buf[100];
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);
}
void die(int sig)
{
register struct filed *f;
char buf[100];
for (f = Files; f != NULL; f = f->f_nextone) {
/* 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);
}
exit(0);
}
/*
* INIT -- Initialize syslogd from configuration table
*/
void init(int x)
{
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:
(void) _close(f->f_file);
break;
case F_FORW:
soclose(f->f_file);
break;
}
next = f->f_nextone;
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 *)malloc(sizeof(*f));
cfline("*.ERR\tCON", *nextp);
(*nextp)->f_nextone = (struct filed *)malloc(sizeof(*f));
cfline("*.PANIC\t*", (*nextp)->f_nextone);
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 == '\0' || *p == '#')
continue;
for (p = strchr(cline, '\0'); isspace(*--p););
*++p = '\0';
f = (struct filed *)malloc(sizeof(*f));
*nextp = f;
nextp = &f->f_nextone;
cfline(cline, f);
}
/* close the configuration file */
(void) fclose(cf);
Initialized = 1;
if (Debug) {
for (f = Files; f; f = f->f_nextone) {
for (i = 0; i <= LOG_NFACILITIES; i++)
if (f->f_pmask[i] == 0)
printf("X ");
else
printf("0x%02x ", 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;
}
printf("\n");
}
}
if (Debug) {
(void) signal(SIGINT, die);
}
else {
(void) signal(SIGINT, init);
}
logmsg(LOG_SYSLOG|LOG_INFO, "syslogd: restart", LocalHostName, ADDDATE);
dprintf("syslogd: restarted\n");
}
/*
* Crack a configuration file line
*/
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] = 0;
/* scan through the list of selectors */
for (p = line; *p && *p != '\t' && *p != ' ';) {
/* find the end of this facility name list */
for (q = p; *q && *q != '\t' && *q != ' ' && *q++ != '.'; )
continue;
/* collect priority name */
for (bp = buf; *q && !index("\t,; ", *q); )
*bp++ = *q++;
*bp = '\0';
/* skip cruft */
while (index(",;", *q)) /* spaces no longer allowed! */
q++;
/* decode priority name */
if (*buf == '*')
pri = -1;
else {
pri = decode(*buf == '=' ? buf+1 : buf, prioritynames);
if (pri == INTERNAL_NOPRI)
pri = 0;
else if (pri < 0 || pri > LOG_PRIMASK) {
(void) sprintf(ebuf, "unknown priority name \"%s\"", buf);
logerror(ebuf);
return;
}
else
pri = (*buf == '=' ? 1 : -1) << (LOG_PRIMASK - pri);
}
/* 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++)
if (pri == 0)
f->f_pmask[i] = pri;
else
f->f_pmask[i] |= pri;
else {
i = decode(buf, facilitynames);
if (i < 0) {
(void) sprintf(ebuf,
"unknown facility name \"%s\"",
buf);
logerror(ebuf);
return;
}
if (pri == 0)
f->f_pmask[i >> 3] = pri;
else
f->f_pmask[i >> 3] |= pri;
}
while (*p == ',' || *p == ' ')
p++;
}
p = q;
}
/* skip to action part */
while (*p == '\t' || *p == ' ')
p++;
switch (*p)
{
case '@':
if (!InetInuse)
break;
(void) strcpy(f->f_un.f_forw.f_hname, ++p);
hp = gethostbyname(p);
if (hp == NULL) {
logerror("hostname lookup error");
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;
default:
if ( memcmp(p, "COM",3) == 0)
{
if ((f->f_file = _open(p, O_WRONLY|O_APPEND, 0)) < 0)
{
f->f_file = F_UNUSED;
logerror(p);
break;
}
f->f_type = F_TTY;
break;
}
if (strcmp(p, "CON") == 0)
{
if ((f->f_file = _open(p, O_WRONLY|O_APPEND,0)) < 0)
{
f->f_file = F_UNUSED;
logerror(p);
break;
}
f->f_type = F_CONSOLE;
break;
}
(void) strcpy(f->f_un.f_fname, p);
if ((f->f_file = _open(p, O_WRONLY|O_APPEND|O_CREAT, S_IWRITE|S_IREAD)) < 0) {
f->f_file = F_UNUSED;
logerror(p);
break;
}
f->f_type = F_FILE;
break;
}
}
/*
* Decode a symbolic name to a numeric value
*/
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);
}