Add -u, -v and -vv options to syslogd, this improves the control and
logging verbosity about facility & priority levels. PR: 7278 Reviewed by: phk Submitted by: Harlan Stenn <Harlan.Stenn@pfcs.com>
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2020-12-20 02:59:44 +00:00
svn path=/head/; revision=37820
@ -30,7 +30,7 @@
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)syslog.conf.5 8.1 (Berkeley) 6/9/93
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.\" $Id: syslog.conf.5,v 1.9 1997/10/20 12:55:47 charnier Exp $
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.\" $Id: syslog.conf.5,v 1.10 1998/06/10 04:34:54 julian Exp $
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.\"
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.Dd June 9, 1993
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.Dt SYSLOG.CONF 5
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@ -71,6 +71,8 @@ are encoded as a
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.Em facility ,
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a period
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.Pq Dq \&. ,
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an optional set of comparison flags
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.Pq Bq <=> ,
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and a
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.Em level ,
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with no intervening white-space.
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@ -95,6 +97,21 @@ and
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library routines.
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.Pp
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The
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.Em comparison flags
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may be used to specify exactly what is logged.
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The default set of comparison flags are
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.Dq =>
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(or, if you prefer,
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.Do >=
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.Dc ),
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which means that messages from the specified
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.Em facility
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list of a priority
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level equal or greater than
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.Em level
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will be logged.
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.Pp
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The
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.Em level
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describes the severity of the message, and is a keyword from the
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following ordered list (higher to lower): emerg, alert, crit, err,
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@ -271,6 +288,9 @@ A configuration file might appear as follows:
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# Don't log private authentication messages!
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*.info;mail.none;authpriv.none /var/log/messages
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# Log daemon messages at debug level only
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daemon.=debug /var/log/daemon.debug
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# The authpriv file has restricted access.
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authpriv.* /var/log/secure
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@ -30,7 +30,7 @@
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)syslogd.8 8.1 (Berkeley) 6/6/93
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.\" $Id: syslogd.8,v 1.14 1998/04/24 17:32:20 phk Exp $
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.\" $Id: syslogd.8,v 1.15 1998/06/25 19:39:18 guido Exp $
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.\"
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.Dd October 12, 1995
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.Dt SYSLOGD 8
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@ -40,7 +40,7 @@
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.Nd log systems messages
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.Sh SYNOPSIS
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.Nm
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.Op Fl ds
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.Op Fl dsuv
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.Op Fl a Ar allowed_peer
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.Op Fl f Ar config_file
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.Op Fl m Ar mark_interval
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@ -131,6 +131,18 @@ of various chroot filespaces.
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Operate in secure mode. Do not log messages from remote machines.
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The messages will be received and counted and a log entry produced every time
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the count exceeds a power of two.
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.It Fl u
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Unique priority logging. Only log messages at the specified priority.
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Without this option, messages at the stated priority or higher are logged.
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This option changes the default comparison from
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.Dq =>
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to
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.Dq = .
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.It Fl v
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Verbose logging. If specified once, the numeric facility and priority are
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logged with each locally-written message. If specified more than once,
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the names of the facility and priority are logged with each locally-written
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message.
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.El
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.Pp
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The
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@ -197,9 +209,11 @@ command appeared in
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.Bx 4.3 .
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.Pp
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The
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.Fl s
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.Fl a ,
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.Fl s ,
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.Fl u ,
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and
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.Fl a
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.Fl v
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options are
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.Fx 2.2
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extensions.
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@ -42,7 +42,7 @@ static const char copyright[] =
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static char sccsid[] = "@(#)syslogd.c 8.3 (Berkeley) 4/4/94";
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#endif
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static const char rcsid[] =
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"$Id: syslogd.c,v 1.37 1998/07/02 19:35:40 guido Exp $";
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"$Id: syslogd.c,v 1.38 1998/07/06 20:28:08 bde Exp $";
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#endif /* not lint */
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/*
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@ -67,6 +67,8 @@ static const char rcsid[] =
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* more extensive changes by Eric Allman (again)
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* Extension to log by program name as well as facility and priority
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* by Peter da Silva.
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* -u and -v by Harlan Stenn.
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* Priority comparison code by Harlan Stenn.
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*/
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#define MAXLINE 1024 /* maximum line length */
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@ -146,6 +148,10 @@ struct filed {
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short f_file; /* file descriptor */
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time_t f_time; /* time this was last written */
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u_char f_pmask[LOG_NFACILITIES+1]; /* priority mask */
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u_char f_pcmp[LOG_NFACILITIES+1]; /* compare priority */
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#define PRI_LT 0x1
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#define PRI_EQ 0x2
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#define PRI_GT 0x4
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char *f_program; /* program this applies to */
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union {
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char f_uname[MAXUNAMES][UT_NAMESIZE+1];
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@ -258,6 +264,10 @@ char bootfile[MAXLINE+1]; /* booted kernel file */
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struct allowedpeer *AllowedPeers;
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int NumAllowed = 0; /* # of AllowedPeer entries */
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int UniquePriority = 0; /* Only log specified priority? */
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int LogFacPri = 0; /* Put facility and priority in log message: */
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/* 0=no, 1=numeric, 2=names */
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int allowaddr __P((char *));
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void cfline __P((char *, struct filed *, char *));
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char *cvthname __P((struct sockaddr_in *));
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@ -293,7 +303,7 @@ main(argc, argv)
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struct timeval tv, *tvp;
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pid_t ppid;
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while ((ch = getopt(argc, argv, "a:dl:sf:m:p:")) != -1)
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while ((ch = getopt(argc, argv, "a:dl:f:m:p:suv")) != -1)
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switch(ch) {
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case 'd': /* debug */
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Debug++;
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@ -322,6 +332,12 @@ main(argc, argv)
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"syslogd: out of descriptors, ignoring %s\n",
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optarg);
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break;
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case 'u': /* only log specified priority */
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UniquePriority++;
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break;
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case 'v': /* log facility and priority */
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LogFacPri++;
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break;
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case '?':
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default:
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usage();
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@ -507,7 +523,7 @@ usage()
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{
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fprintf(stderr, "%s\n%s\n%s\n",
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"usage: syslogd [-ds] [-a allowed_peer] [-f config_file]",
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"usage: syslogd [-dsuv] [-a allowed_peer] [-f config_file]",
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" [-m mark_interval] [-p log_socket]",
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" [-l log_socket]");
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exit(1);
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@ -677,8 +693,11 @@ logmsg(pri, msg, from, flags)
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}
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for (f = Files; f; f = f->f_next) {
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/* skip messages that are incorrect priority */
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if (f->f_pmask[fac] < prilev ||
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f->f_pmask[fac] == INTERNAL_NOPRI)
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if (!(((f->f_pcmp[fac] & PRI_EQ) && (f->f_pmask[fac] == prilev))
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||((f->f_pcmp[fac] & PRI_LT) && (f->f_pmask[fac] < prilev))
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||((f->f_pcmp[fac] & PRI_GT) && (f->f_pmask[fac] > prilev))
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)
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|| f->f_pmask[fac] == INTERNAL_NOPRI)
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continue;
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/* skip messages with the incorrect program name */
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if(f->f_program)
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@ -742,7 +761,7 @@ fprintlog(f, flags, msg)
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int flags;
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char *msg;
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{
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struct iovec iov[6];
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struct iovec iov[7];
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struct iovec *v;
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int l;
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char line[MAXLINE + 1], repbuf[80], greetings[200];
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@ -766,6 +785,49 @@ fprintlog(f, flags, msg)
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v->iov_len = 1;
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v++;
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}
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if (LogFacPri) {
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static char fp_buf[30]; /* Hollow laugh */
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int fac = f->f_prevpri & LOG_FACMASK;
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int pri = LOG_PRI(f->f_prevpri);
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char *f_s = 0;
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char f_n[5]; /* Hollow laugh */
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char *p_s = 0;
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char p_n[5]; /* Hollow laugh */
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if (LogFacPri > 1) {
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CODE *c;
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for (c = facilitynames; c; c++) {
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if (c->c_val == fac) {
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f_s = c->c_name;
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break;
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}
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}
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for (c = prioritynames; c; c++) {
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if (c->c_val == pri) {
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p_s = c->c_name;
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break;
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}
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}
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}
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if (!f_s) {
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snprintf(f_n, sizeof f_n, "%d", LOG_FAC(fac));
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f_s = f_n;
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}
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if (!p_s) {
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snprintf(p_n, sizeof p_n, "%d", pri);
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p_s = p_n;
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}
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snprintf(fp_buf, sizeof fp_buf, "<%s.%s> ", f_s, p_s);
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v->iov_base = fp_buf;
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v->iov_len = strlen(fp_buf);
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} else {
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v->iov_base="";
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v->iov_len = 0;
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}
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v++;
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v->iov_base = f->f_prevhost;
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v->iov_len = strlen(v->iov_base);
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v++;
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@ -823,7 +885,7 @@ fprintlog(f, flags, msg)
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dprintf(" %s\n", f->f_un.f_fname);
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v->iov_base = "\n";
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v->iov_len = 1;
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if (writev(f->f_file, iov, 6) < 0) {
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if (writev(f->f_file, iov, 7) < 0) {
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int e = errno;
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(void)close(f->f_file);
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f->f_type = F_UNUSED;
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@ -845,7 +907,7 @@ fprintlog(f, flags, msg)
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break;
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}
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}
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if (writev(f->f_file, iov, 6) < 0) {
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if (writev(f->f_file, iov, 7) < 0) {
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int e = errno;
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(void)close(f->f_file);
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if (f->f_un.f_pipe.f_pid > 0)
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@ -869,7 +931,7 @@ fprintlog(f, flags, msg)
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v->iov_len = 2;
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errno = 0; /* ttymsg() only sometimes returns an errno */
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if ((msgret = ttymsg(iov, 6, f->f_un.f_fname, 10))) {
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if ((msgret = ttymsg(iov, 7, f->f_un.f_fname, 10))) {
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f->f_type = F_UNUSED;
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logerror(msgret);
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}
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@ -918,7 +980,7 @@ wallmsg(f, iov)
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strncpy(line, ut.ut_line, sizeof(ut.ut_line));
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line[sizeof(ut.ut_line)] = '\0';
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if (f->f_type == F_WALL) {
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if ((p = ttymsg(iov, 6, line, TTYMSGTIME)) != NULL) {
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if ((p = ttymsg(iov, 7, line, TTYMSGTIME)) != NULL) {
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errno = 0; /* already in msg */
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logerror(p);
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}
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@ -930,7 +992,7 @@ wallmsg(f, iov)
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break;
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if (!strncmp(f->f_un.f_uname[i], ut.ut_name,
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UT_NAMESIZE)) {
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if ((p = ttymsg(iov, 6, line, TTYMSGTIME))
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if ((p = ttymsg(iov, 7, line, TTYMSGTIME))
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!= NULL) {
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errno = 0; /* already in msg */
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logerror(p);
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@ -1304,11 +1366,41 @@ cfline(line, f, prog)
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/* scan through the list of selectors */
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for (p = line; *p && *p != '\t';) {
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int pri_done;
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int pri_cmp;
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/* find the end of this facility name list */
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for (q = p; *q && *q != '\t' && *q++ != '.'; )
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continue;
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/* get the priority comparison */
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pri_cmp = 0;
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pri_done = 0;
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while (!pri_done) {
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switch (*q) {
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case '<':
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pri_cmp |= PRI_LT;
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q++;
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break;
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case '=':
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pri_cmp |= PRI_EQ;
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q++;
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break;
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case '>':
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pri_cmp |= PRI_GT;
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q++;
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break;
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default:
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pri_done++;
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break;
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}
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}
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if (!pri_cmp)
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pri_cmp = (UniquePriority)
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? (PRI_EQ)
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: (PRI_EQ | PRI_GT)
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;
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/* collect priority name */
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for (bp = buf; *q && !strchr("\t,;", *q); )
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*bp++ = *q++;
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@ -1336,9 +1428,12 @@ cfline(line, f, prog)
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for (bp = buf; *p && !strchr("\t,;.", *p); )
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*bp++ = *p++;
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*bp = '\0';
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if (*buf == '*')
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for (i = 0; i < LOG_NFACILITIES; i++)
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for (i = 0; i < LOG_NFACILITIES; i++) {
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f->f_pmask[i] = pri;
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f->f_pcmp[i] = pri_cmp;
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}
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else {
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i = decode(buf, facilitynames);
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if (i < 0) {
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@ -1349,6 +1444,7 @@ cfline(line, f, prog)
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return;
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}
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f->f_pmask[i >> 3] = pri;
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f->f_pcmp[i >> 3] = pri_cmp;
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}
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while (*p == ',' || *p == ' ')
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p++;
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