1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta name="generator" content="HTML Tidy, see www.w3.org">
<title>lpq Requests</title>
<meta name="GENERATOR" content=
"Modular DocBook HTML Stylesheet Version 1.71 ">
<link rel="HOME" title=" LPRng-HOWTO" href="index.htm">
<link rel="UP" title="RFC 1179 - Line Printer Daemon Protocol "
href="rfc1179ref.htm">
<link rel="PREVIOUS" title="Control File Contents" href=
"x10007.htm">
<link rel="NEXT" title="lprm Requests" href="x10233.htm">
</head>
<body class="SECT1" bgcolor="#FFFFFF" text="#000000" link=
"#0000FF" vlink="#840084" alink="#0000FF">
<div class="NAVHEADER">
<table summary="Header navigation table" width="100%" border=
"0" cellpadding="0" cellspacing="0">
<tr>
<th colspan="3" align="center">LPRng-HOWTO: 1 Apr 2002
(For LPRng-3.8.10)</th>
</tr>
<tr>
<td width="10%" align="left" valign="bottom"><a href=
"x10007.htm" accesskey="P">Prev</a></td>
<td width="80%" align="center" valign="bottom">Chapter
19. RFC 1179 - Line Printer Daemon Protocol</td>
<td width="10%" align="right" valign="bottom"><a href=
"x10233.htm" accesskey="N">Next</a></td>
</tr>
</table>
<hr align="LEFT" width="100%">
</div>
<div class="SECT1">
<h1 class="SECT1"><a name="AEN10210">19.6. <b class=
"APPLICATION">lpq</b> Requests</a></h1>
<p>The RFC1179 protocol specifies that <b class=
"APPLICATION">lpq</b> print status requests can be sent to
the <b class="APPLICATION">lpd</b> server. The lpq requests
have the format:</p>
<div class="INFORMALEXAMPLE">
<a name="AEN10216"></a>
<pre class="SCREEN">
\003printer [id]* \n short
\004printer [id]* \n long
\011printer [id]* \n <b class=
"APPLICATION">LPRng</b> extension- verbose
</pre>
</div>
<br>
<br>
<p>The <b class="APPLICATION">lpd</b> print server will then
return queue status and close the data connection.</p>
<p>RFC1179 does not state in any manner what the format of
the queue status should be. Thus, implementors have been free
to augment or change the status as they like. Even the BSD <b
class="APPLICATION">lpq</b> status format has been changed
from different versions.</p>
<p>See <a href="lpq.htm"><b class="APPLICATION">lpq</b> -
Status Monitoring Program</a> for information on the formats
returned.</p>
<p>The <tt class="LITERAL">id</tt> values are used to select
the jobs to be displayed. <b class="APPLICATION">LPRng</b>
displays any job whose ID, hostname, or user name information
from the control file <tt class="LITERAL">A</tt>, <tt class=
"LITERAL">H</tt>, or <tt class="LITERAL">P</tt> fields match
any of the id values.</p>
<p>Note that since there is no identification of the
information requestor, then restriction of information is
almost impossible.</p>
</div>
<div class="NAVFOOTER">
<hr align="LEFT" width="100%">
<table summary="Footer navigation table" width="100%" border=
"0" cellpadding="0" cellspacing="0">
<tr>
<td width="33%" align="left" valign="top"><a href=
"x10007.htm" accesskey="P">Prev</a></td>
<td width="34%" align="center" valign="top"><a href=
"index.htm" accesskey="H">Home</a></td>
<td width="33%" align="right" valign="top"><a href=
"x10233.htm" accesskey="N">Next</a></td>
</tr>
<tr>
<td width="33%" align="left" valign="top">Control File
Contents</td>
<td width="34%" align="center" valign="top"><a href=
"rfc1179ref.htm" accesskey="U">Up</a></td>
<td width="33%" align="right" valign="top"><b class=
"APPLICATION">lprm</b> Requests</td>
</tr>
</table>
</div>
</body>
</html>
|
