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Date: Mon, 14 Apr 1997 10:52:49 -0500 (CDT)
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Subject: docs/3290: port option in lpd not valid
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>Number:         3290
>Category:       docs
>Synopsis:       port option in lpd not valid
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Class:          doc-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Apr 14 09:00:01 PDT 1997
>Last-Modified:
>Originator:     mark tinguely
>Organization:
North Dakota State University CS Department
>Release:        FreeBSD 2.2.1-RELEASE i386 and before
>Environment:


>Description:

lpd(8) does not accept another port number as documented in the manual
page. Looking at the sources for lpd, lpd does not recognize the additional
port arguement. in lpd.c (main())

                sp = getservbyname("printer", "tcp");
                if (sp == NULL) {
                        syslog(LOG_ERR, "printer/tcp: unknown service");
                        mcleanup(0);  
                }       
                memset(&sin, 0, sizeof(sin));
                sin.sin_family = AF_INET;
                sin.sin_port = sp->s_port;
                if (bind(finet, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
                        syslog(LOG_ERR, "bind: %m");
                        mcleanup(0);
                } 

Later in the code it make sure the port is a reserved port (lower than 1024)
for security purposes, so even if we could change to port number it would
only work for reserved ports. 

>How-To-Repeat:

# lpd 4
# netstat -a 

>Fix:
	
remove the port# information from the manual page.
>Audit-Trail:
>Unformatted: