svn commit: r332510 - in head: usr.bin/wall usr.sbin/syslogd
Ed Schouten
ed at FreeBSD.org
Sun Apr 15 08:34:17 UTC 2018
Author: ed
Date: Sun Apr 15 08:34:16 2018
New Revision: 332510
URL: https://svnweb.freebsd.org/changeset/base/332510
Log:
Add RFC 5424 syslog message output to syslogd.
- Move all of the code responsible for transmitting log messages into a
separate function, fprintlog_write().
- Instead of manually modifying a list of iovecs, add a structure
iovlist with some helper functions.
- Alter the F_FORW (UDP message forwarding) case to also use iovecs like
the other cases. Use sendmsg() instead of sendto().
- In the case of F_FORW, truncate the message to a size dependent on the
address family (AF_INET, AF_INET6), as proposed by RFC 5426.
- Move all traditional message formatting into fprintlog_bsd(). Get rid
of some of the string copying and snprintf()'ing. Simply emit more
iovecs to get the job done.
- Increase ttymsg()'s limit of 7 iovecs to 32. Add a definition for this
limit, so it can be reused by iovlist.
- Add fprintlog_rfc5424() to emit RFC 5424 formatted log entries.
- Add a "-O" command line option to enable RFC 5424 formatting. It would
have been nicer if we supported "-o rfc5424", just like on NetBSD.
Unfortunately, the "-o" flag is already used for a different purpose
on FreeBSD.
- Don't truncate hostnames in the RFC 5424 case, as suggested by that
specific RFC.
For people interested in using this, this feature can be enabled by
adding the following line to /etc/rc.conf:
syslogd_flags="-s -O rfc5424"
Differential Revision: https://reviews.freebsd.org/D15011
Modified:
head/usr.bin/wall/ttymsg.c
head/usr.bin/wall/ttymsg.h
head/usr.sbin/syslogd/syslogd.8
head/usr.sbin/syslogd/syslogd.c
Modified: head/usr.bin/wall/ttymsg.c
==============================================================================
--- head/usr.bin/wall/ttymsg.c Sat Apr 14 22:14:18 2018 (r332509)
+++ head/usr.bin/wall/ttymsg.c Sun Apr 15 08:34:16 2018 (r332510)
@@ -61,7 +61,7 @@ static const char sccsid[] = "@(#)ttymsg.c 8.2 (Berkel
const char *
ttymsg(struct iovec *iov, int iovcnt, const char *line, int tmout)
{
- struct iovec localiov[7];
+ struct iovec localiov[TTYMSG_IOV_MAX];
ssize_t left, wret;
int cnt, fd;
char device[MAXNAMLEN] = _PATH_DEV;
Modified: head/usr.bin/wall/ttymsg.h
==============================================================================
--- head/usr.bin/wall/ttymsg.h Sat Apr 14 22:14:18 2018 (r332509)
+++ head/usr.bin/wall/ttymsg.h Sun Apr 15 08:34:16 2018 (r332510)
@@ -1,3 +1,5 @@
/* $FreeBSD$ */
+#define TTYMSG_IOV_MAX 32
+
const char *ttymsg(struct iovec *, int, const char *, int);
Modified: head/usr.sbin/syslogd/syslogd.8
==============================================================================
--- head/usr.sbin/syslogd/syslogd.8 Sat Apr 14 22:14:18 2018 (r332509)
+++ head/usr.sbin/syslogd/syslogd.8 Sun Apr 15 08:34:16 2018 (r332510)
@@ -28,7 +28,7 @@
.\" @(#)syslogd.8 8.1 (Berkeley) 6/6/93
.\" $FreeBSD$
.\"
-.Dd November 28, 2017
+.Dd April 9, 2018
.Dt SYSLOGD 8
.Os
.Sh NAME
@@ -42,6 +42,7 @@
.Op Fl f Ar config_file
.Op Fl l Oo Ar mode Ns \&: Oc Ns Ar path
.Op Fl m Ar mark_interval
+.Op Fl O Ar format
.Op Fl P Ar pid_file
.Op Fl p Ar log_socket
.Op Fl S Ar logpriv_socket
@@ -242,6 +243,20 @@ Usually the
.Dq kern
facility is reserved for messages read directly from
.Pa /dev/klog .
+.It Fl O Ar format
+Select the output format of generated log messages.
+The values
+.Ar bsd
+and
+.Ar rfc3164
+are used to generate RFC 3164 log messages.
+The values
+.Ar syslog
+and
+.Ar rfc5424
+are used to generate RFC 5424 log messages,
+having RFC 3339 timestamps with microsecond precision.
+The default is to generate RFC 3164 log messages.
.It Fl m Ar mark_interval
Select the number of minutes between
.Dq mark
Modified: head/usr.sbin/syslogd/syslogd.c
==============================================================================
--- head/usr.sbin/syslogd/syslogd.c Sat Apr 14 22:14:18 2018 (r332509)
+++ head/usr.sbin/syslogd/syslogd.c Sun Apr 15 08:34:16 2018 (r332510)
@@ -136,6 +136,7 @@ __FBSDID("$FreeBSD$");
#include <netdb.h>
#include <paths.h>
#include <signal.h>
+#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -367,9 +368,12 @@ static int KeepKernFac; /* Keep remotely logged kernel
static int needdofsync = 0; /* Are any file(s) waiting to be fsynced? */
static struct pidfh *pfh;
static int sigpipe[2]; /* Pipe to catch a signal during select(). */
+static bool RFC3164OutputFormat = true; /* Use legacy format by default. */
static volatile sig_atomic_t MarkSet, WantDie, WantInitialize, WantReapchild;
+struct iovlist;
+
static int allowaddr(char *);
static int addfile(struct filed *);
static int addpeer(struct peer *);
@@ -386,6 +390,7 @@ static void dofsync(void);
static void domark(int);
static void fprintlog_first(struct filed *, const char *, const char *,
const char *, const char *, const char *, const char *, int);
+static void fprintlog_write(struct filed *, struct iovlist *, int);
static void fprintlog_successive(struct filed *, int);
static void init(int);
static void logerror(const char *);
@@ -498,7 +503,7 @@ main(int argc, char *argv[])
if (madvise(NULL, 0, MADV_PROTECT) != 0)
dprintf("madvise() failed: %s\n", strerror(errno));
- while ((ch = getopt(argc, argv, "468Aa:b:cCdf:FHkl:m:nNop:P:sS:Tuv"))
+ while ((ch = getopt(argc, argv, "468Aa:b:cCdf:FHkl:m:nNoO:p:P:sS:Tuv"))
!= -1)
switch (ch) {
#ifdef INET
@@ -621,6 +626,16 @@ main(int argc, char *argv[])
case 'n':
resolve = 0;
break;
+ case 'O':
+ if (strcmp(optarg, "bsd") == 0 ||
+ strcmp(optarg, "rfc3164") == 0)
+ RFC3164OutputFormat = true;
+ else if (strcmp(optarg, "syslog") == 0 ||
+ strcmp(optarg, "rfc5424") == 0)
+ RFC3164OutputFormat = false;
+ else
+ usage();
+ break;
case 'o':
use_bootfile = 1;
break;
@@ -880,12 +895,12 @@ static void
usage(void)
{
- fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n",
- "usage: syslogd [-468ACcdFHknosTuv] [-a allowed_peer]",
- " [-b bind_address] [-f config_file]",
- " [-l [mode:]path] [-m mark_interval]",
- " [-P pid_file] [-p log_socket]",
- " [-S logpriv_socket]");
+ fprintf(stderr,
+ "usage: syslogd [-468ACcdFHknosTuv] [-a allowed_peer]\n"
+ " [-b bind_address] [-f config_file]\n"
+ " [-l [mode:]path] [-m mark_interval]\n"
+ " [-O format] [-P pid_file] [-p log_socket]\n"
+ " [-S logpriv_socket]\n");
exit(1);
}
@@ -1558,177 +1573,114 @@ dofsync(void)
}
}
-#define IOV_SIZE 7
+/*
+ * List of iovecs to which entries can be appended.
+ * Used for constructing the message to be logged.
+ */
+struct iovlist {
+ struct iovec iov[TTYMSG_IOV_MAX];
+ size_t iovcnt;
+ size_t totalsize;
+};
+
static void
-fprintlog_first(struct filed *f, const char *hostname, const char *app_name,
- const char *procid, const char *msgid __unused,
- const char *structured_data __unused, const char *msg, int flags)
+iovlist_init(struct iovlist *il)
{
- struct iovec iov[IOV_SIZE];
- struct addrinfo *r;
- int l, lsent = 0;
- char tagged_msg[MAXLINE + 1], line[MAXLINE + 1], greetings[200];
- char nul[] = "", space[] = " ", lf[] = "\n", crlf[] = "\r\n";
- char timebuf[RFC3164_DATELEN + 1];
- const char *msgret;
- if (strftime(timebuf, sizeof(timebuf), RFC3164_DATEFMT,
- &f->f_lasttime.tm) == 0)
- timebuf[0] = '\0';
- if (f->f_type == F_WALL) {
- /* The time displayed is not synchornized with the other log
- * destinations (like messages). Following fragment was using
- * ctime(&now), which was updating the time every 30 sec.
- * With f_lasttime, time is synchronized correctly.
- */
- iov[0] = (struct iovec){
- .iov_base = greetings,
- .iov_len = snprintf(greetings, sizeof(greetings),
- "\r\n\7Message from syslogd@%s "
- "at %.24s ...\r\n", hostname, timebuf)
+ il->iovcnt = 0;
+ il->totalsize = 0;
+}
+
+static void
+iovlist_append(struct iovlist *il, const char *str)
+{
+ size_t size;
+
+ /* Discard components if we've run out of iovecs. */
+ if (il->iovcnt < nitems(il->iov)) {
+ size = strlen(str);
+ il->iov[il->iovcnt++] = (struct iovec){
+ .iov_base = __DECONST(char *, str),
+ .iov_len = size,
};
- if (iov[0].iov_len >= sizeof(greetings))
- iov[0].iov_len = sizeof(greetings) - 1;
- iov[1] = (struct iovec){
- .iov_base = nul,
- .iov_len = 0
- };
- } else {
- iov[0] = (struct iovec){
- .iov_base = timebuf,
- .iov_len = strlen(timebuf)
- };
- iov[1] = (struct iovec){
- .iov_base = space,
- .iov_len = 1
- };
+ il->totalsize += size;
}
+}
- if (LogFacPri) {
- static char fp_buf[30]; /* Hollow laugh */
- int fac = f->f_prevpri & LOG_FACMASK;
- int pri = LOG_PRI(f->f_prevpri);
- const char *f_s = NULL;
- char f_n[5]; /* Hollow laugh */
- const char *p_s = NULL;
- char p_n[5]; /* Hollow laugh */
+static void
+iovlist_truncate(struct iovlist *il, size_t size)
+{
+ struct iovec *last;
+ size_t diff;
- if (LogFacPri > 1) {
- const CODE *c;
-
- for (c = facilitynames; c->c_name; c++) {
- if (c->c_val == fac) {
- f_s = c->c_name;
- break;
- }
- }
- for (c = prioritynames; c->c_name; c++) {
- if (c->c_val == pri) {
- p_s = c->c_name;
- break;
- }
- }
+ while (size > il->totalsize) {
+ diff = size - il->totalsize;
+ last = &il->iov[il->iovcnt - 1];
+ if (diff >= last->iov_len) {
+ /* Remove the last iovec entirely. */
+ --il->iovcnt;
+ il->totalsize -= last->iov_len;
+ } else {
+ /* Remove the last iovec partially. */
+ last->iov_len -= diff;
+ il->totalsize -= diff;
}
- if (!f_s) {
- snprintf(f_n, sizeof f_n, "%d", LOG_FAC(fac));
- f_s = f_n;
- }
- if (!p_s) {
- snprintf(p_n, sizeof p_n, "%d", pri);
- p_s = p_n;
- }
- snprintf(fp_buf, sizeof fp_buf, "<%s.%s> ", f_s, p_s);
- iov[2] = (struct iovec){
- .iov_base = fp_buf,
- .iov_len = strlen(fp_buf)
- };
- } else {
- iov[2] = (struct iovec){
- .iov_base = nul,
- .iov_len = 0
- };
}
- /* Prepend the application name to the message if provided. */
- if (app_name != NULL) {
- if (procid != NULL)
- snprintf(tagged_msg, sizeof(tagged_msg),
- "%s[%s]: %s", app_name, procid, msg);
- else
- snprintf(tagged_msg, sizeof(tagged_msg),
- "%s: %s", app_name, msg);
- msg = tagged_msg;
- }
- iov[3] = (struct iovec){
- .iov_base = __DECONST(char *, hostname),
- .iov_len = strlen(hostname)
- };
- iov[4] = (struct iovec){
- .iov_base = space,
- .iov_len = 1
- };
- iov[5] = (struct iovec){
- .iov_base = __DECONST(char *, msg),
- .iov_len = strlen(msg)
- };
- dprintf("Logging to %s", TypeNames[f->f_type]);
- f->f_time = now;
+}
- switch (f->f_type) {
- case F_UNUSED:
- dprintf("\n");
- break;
+static void
+fprintlog_write(struct filed *f, struct iovlist *il, int flags)
+{
+ struct msghdr msghdr;
+ struct addrinfo *r;
+ struct socklist *sl;
+ const char *msgret;
+ ssize_t lsent;
+ switch (f->f_type) {
case F_FORW:
+ /* Truncate messages to RFC 5426 recommended size. */
dprintf(" %s", f->fu_forw_hname);
switch (f->fu_forw_addr->ai_addr->sa_family) {
#ifdef INET
case AF_INET:
dprintf(":%d\n",
ntohs(satosin(f->fu_forw_addr->ai_addr)->sin_port));
+ iovlist_truncate(il, 480);
break;
#endif
#ifdef INET6
case AF_INET6:
dprintf(":%d\n",
ntohs(satosin6(f->fu_forw_addr->ai_addr)->sin6_port));
+ iovlist_truncate(il, 1180);
break;
#endif
default:
dprintf("\n");
}
- /* check for local vs remote messages */
- if (strcasecmp(hostname, LocalHostName))
- l = snprintf(line, sizeof line - 1,
- "<%d>%.15s Forwarded from %s: %s",
- f->f_prevpri, (char *)iov[0].iov_base,
- hostname, (char *)iov[5].iov_base);
- else
- l = snprintf(line, sizeof line - 1, "<%d>%.15s %s",
- f->f_prevpri, (char *)iov[0].iov_base,
- (char *)iov[5].iov_base);
- if (l < 0)
- l = 0;
- else if (l > MAXLINE)
- l = MAXLINE;
+ lsent = 0;
for (r = f->fu_forw_addr; r; r = r->ai_next) {
- struct socklist *sl;
-
+ memset(&msghdr, 0, sizeof(msghdr));
+ msghdr.msg_name = r->ai_addr;
+ msghdr.msg_namelen = r->ai_addrlen;
+ msghdr.msg_iov = il->iov;
+ msghdr.msg_iovlen = il->iovcnt;
STAILQ_FOREACH(sl, &shead, next) {
if (sl->sl_ss.ss_family == AF_LOCAL ||
sl->sl_ss.ss_family == AF_UNSPEC ||
sl->sl_socket < 0)
continue;
- lsent = sendto(sl->sl_socket, line, l, 0,
- r->ai_addr, r->ai_addrlen);
- if (lsent == l)
+ lsent = sendmsg(sl->sl_socket, &msghdr, 0);
+ if (lsent == (ssize_t)il->totalsize)
break;
}
- if (lsent == l && !send_to_all)
+ if (lsent == (ssize_t)il->totalsize && !send_to_all)
break;
}
- dprintf("lsent/l: %d/%d\n", lsent, l);
- if (lsent != l) {
+ dprintf("lsent/totalsize: %zd/%zu\n", lsent, il->totalsize);
+ if (lsent != (ssize_t)il->totalsize) {
int e = errno;
logerror("sendto");
errno = e;
@@ -1758,11 +1710,8 @@ fprintlog_first(struct filed *f, const char *hostname,
case F_FILE:
dprintf(" %s\n", f->fu_fname);
- iov[6] = (struct iovec){
- .iov_base = lf,
- .iov_len = 1
- };
- if (writev(f->f_file, iov, nitems(iov)) < 0) {
+ iovlist_append(il, "\n");
+ if (writev(f->f_file, il->iov, il->iovcnt) < 0) {
/*
* If writev(2) fails for potentially transient errors
* like the filesystem being full, ignore it.
@@ -1782,10 +1731,7 @@ fprintlog_first(struct filed *f, const char *hostname,
case F_PIPE:
dprintf(" %s\n", f->fu_pipe_pname);
- iov[6] = (struct iovec){
- .iov_base = lf,
- .iov_len = 1
- };
+ iovlist_append(il, "\n");
if (f->fu_pipe_pid == 0) {
if ((f->f_file = p_open(f->fu_pipe_pname,
&f->fu_pipe_pid)) < 0) {
@@ -1793,7 +1739,7 @@ fprintlog_first(struct filed *f, const char *hostname,
break;
}
}
- if (writev(f->f_file, iov, nitems(iov)) < 0) {
+ if (writev(f->f_file, il->iov, il->iovcnt) < 0) {
int e = errno;
deadq_enter(f->fu_pipe_pid, f->fu_pipe_pname);
@@ -1812,12 +1758,9 @@ fprintlog_first(struct filed *f, const char *hostname,
case F_TTY:
dprintf(" %s%s\n", _PATH_DEV, f->fu_fname);
- iov[6] = (struct iovec){
- .iov_base = crlf,
- .iov_len = 2
- };
+ iovlist_append(il, "\r\n");
errno = 0; /* ttymsg() only sometimes returns an errno */
- if ((msgret = ttymsg(iov, nitems(iov), f->fu_fname, 10))) {
+ if ((msgret = ttymsg(il->iov, il->iovcnt, f->fu_fname, 10))) {
f->f_type = F_UNUSED;
logerror(msgret);
}
@@ -1826,14 +1769,190 @@ fprintlog_first(struct filed *f, const char *hostname,
case F_USERS:
case F_WALL:
dprintf("\n");
- iov[6] = (struct iovec){
- .iov_base = crlf,
- .iov_len = 2
- };
- wallmsg(f, iov, nitems(iov));
+ iovlist_append(il, "\r\n");
+ wallmsg(f, il->iov, il->iovcnt);
break;
}
+}
+
+static void
+fprintlog_rfc5424(struct filed *f, const char *hostname, const char *app_name,
+ const char *procid, const char *msgid, const char *structured_data,
+ const char *msg, int flags)
+{
+ struct iovlist il;
+ suseconds_t usec;
+ int i;
+ char timebuf[33], priority_number[5];
+
+ iovlist_init(&il);
+ if (f->f_type == F_WALL)
+ iovlist_append(&il, "\r\n\aMessage from syslogd ...\r\n");
+ iovlist_append(&il, "<");
+ snprintf(priority_number, sizeof(priority_number), "%d", f->f_prevpri);
+ iovlist_append(&il, priority_number);
+ iovlist_append(&il, ">1 ");
+ if (strftime(timebuf, sizeof(timebuf), "%FT%T.______%z",
+ &f->f_lasttime.tm) == sizeof(timebuf) - 2) {
+ /* Add colon to the time zone offset, which %z doesn't do. */
+ timebuf[32] = '\0';
+ timebuf[31] = timebuf[30];
+ timebuf[30] = timebuf[29];
+ timebuf[29] = ':';
+
+ /* Overwrite space for microseconds with actual value. */
+ usec = f->f_lasttime.usec;
+ for (i = 25; i >= 20; --i) {
+ timebuf[i] = usec % 10 + '0';
+ usec /= 10;
+ }
+ iovlist_append(&il, timebuf);
+ } else
+ iovlist_append(&il, "-");
+ iovlist_append(&il, " ");
+ iovlist_append(&il, hostname);
+ iovlist_append(&il, " ");
+ iovlist_append(&il, app_name == NULL ? "-" : app_name);
+ iovlist_append(&il, " ");
+ iovlist_append(&il, procid == NULL ? "-" : procid);
+ iovlist_append(&il, " ");
+ iovlist_append(&il, msgid == NULL ? "-" : msgid);
+ iovlist_append(&il, " ");
+ iovlist_append(&il, structured_data == NULL ? "-" : structured_data);
+ iovlist_append(&il, " ");
+ iovlist_append(&il, msg);
+
+ fprintlog_write(f, &il, flags);
+}
+
+static void
+fprintlog_rfc3164(struct filed *f, const char *hostname, const char *app_name,
+ const char *procid, const char *msg, int flags)
+{
+ struct iovlist il;
+ const CODE *c;
+ int facility, priority;
+ char timebuf[RFC3164_DATELEN + 1], facility_number[5],
+ priority_number[5];
+ bool facility_found, priority_found;
+
+ if (strftime(timebuf, sizeof(timebuf), RFC3164_DATEFMT,
+ &f->f_lasttime.tm) == 0)
+ timebuf[0] = '\0';
+
+ iovlist_init(&il);
+ switch (f->f_type) {
+ case F_FORW:
+ /* Message forwarded over the network. */
+ iovlist_append(&il, "<");
+ snprintf(priority_number, sizeof(priority_number), "%d",
+ f->f_prevpri);
+ iovlist_append(&il, priority_number);
+ iovlist_append(&il, ">");
+ iovlist_append(&il, timebuf);
+ if (strcasecmp(hostname, LocalHostName) != 0) {
+ iovlist_append(&il, " Forwarded from ");
+ iovlist_append(&il, hostname);
+ iovlist_append(&il, ":");
+ }
+ iovlist_append(&il, " ");
+ break;
+
+ case F_WALL:
+ /* Message written to terminals. */
+ iovlist_append(&il, "\r\n\aMessage from syslogd@");
+ iovlist_append(&il, hostname);
+ iovlist_append(&il, " at ");
+ iovlist_append(&il, timebuf);
+ iovlist_append(&il, " ...\r\n");
+ break;
+
+ default:
+ /* Message written to files. */
+ iovlist_append(&il, timebuf);
+ iovlist_append(&il, " ");
+ iovlist_append(&il, hostname);
+ iovlist_append(&il, " ");
+
+ if (LogFacPri) {
+ iovlist_append(&il, "<");
+
+ facility = f->f_prevpri & LOG_FACMASK;
+ facility_found = false;
+ if (LogFacPri > 1) {
+ for (c = facilitynames; c->c_name; c++) {
+ if (c->c_val == facility) {
+ iovlist_append(&il, c->c_name);
+ facility_found = true;
+ break;
+ }
+ }
+ }
+ if (!facility_found) {
+ snprintf(facility_number,
+ sizeof(facility_number), "%d",
+ LOG_FAC(facility));
+ iovlist_append(&il, facility_number);
+ }
+
+ iovlist_append(&il, ".");
+
+ priority = LOG_PRI(f->f_prevpri);
+ priority_found = false;
+ if (LogFacPri > 1) {
+ for (c = prioritynames; c->c_name; c++) {
+ if (c->c_val == priority) {
+ iovlist_append(&il, c->c_name);
+ priority_found = true;
+ break;
+ }
+ }
+ }
+ if (!priority_found) {
+ snprintf(priority_number,
+ sizeof(priority_number), "%d", priority);
+ iovlist_append(&il, priority_number);
+ }
+
+ iovlist_append(&il, "> ");
+ }
+ break;
+ }
+
+ /* Message body with application name and process ID prefixed. */
+ if (app_name != NULL) {
+ iovlist_append(&il, app_name);
+ if (procid != NULL) {
+ iovlist_append(&il, "[");
+ iovlist_append(&il, procid);
+ iovlist_append(&il, "]");
+ }
+ iovlist_append(&il, ": ");
+ }
+ iovlist_append(&il, msg);
+
+ fprintlog_write(f, &il, flags);
+}
+
+static void
+fprintlog_first(struct filed *f, const char *hostname, const char *app_name,
+ const char *procid, const char *msgid __unused,
+ const char *structured_data __unused, const char *msg, int flags)
+{
+
+ dprintf("Logging to %s", TypeNames[f->f_type]);
+ f->f_time = now;
f->f_prevcount = 0;
+ if (f->f_type == F_UNUSED) {
+ dprintf("\n");
+ return;
+ }
+
+ if (RFC3164OutputFormat)
+ fprintlog_rfc3164(f, hostname, app_name, procid, msg, flags);
+ else
+ fprintlog_rfc5424(f, hostname, app_name, procid, msgid,
+ structured_data, msg, flags);
}
/*
@@ -2229,8 +2348,10 @@ init(int signo)
if (gethostname(LocalHostName, sizeof(LocalHostName)))
err(EX_OSERR, "gethostname() failed");
if ((p = strchr(LocalHostName, '.')) != NULL) {
- *p++ = '\0';
- LocalDomain = p;
+ /* RFC 5424 prefers logging FQDNs. */
+ if (RFC3164OutputFormat)
+ *p = '\0';
+ LocalDomain = p + 1;
} else {
LocalDomain = "";
}
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