xref: /freebsd/usr.sbin/lpr/common_source/matchjobs.h (revision 5ca8e32633c4ffbbcd6762e5888b6a4ba0708c6c)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * ------+---------+---------+---------+---------+---------+---------+---------*
5  * Copyright (c) 2002  - Garance Alistair Drosehn <gad@FreeBSD.org>.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *   1. Redistributions of source code must retain the above copyright
12  *      notice, this list of conditions and the following disclaimer.
13  *   2. Redistributions in binary form must reproduce the above copyright
14  *      notice, this list of conditions and the following disclaimer in the
15  *      documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * The views and conclusions contained in the software and documentation
30  * are those of the authors and should not be interpreted as representing
31  * official policies, either expressed or implied, of the FreeBSD Project
32  * or FreeBSD, Inc.
33  *
34  * ------+---------+---------+---------+---------+---------+---------+---------*
35  * ------+---------+---------+---------+---------+---------+---------+---------*
36  */
37 
38 #include <sys/queue.h>
39 
40 /*
41  * The "matcheduser" field is *only* valid during the call to the
42  * given "doentry()" routine, and is only set if the specification
43  * included a userid.
44  */
45 struct jobspec {
46 	STAILQ_ENTRY(jobspec) nextjs;
47 	char	*wantedhost;
48 	char	*wanteduser;
49 	char	*matcheduser;		/* only valid for "doentry()" */
50 	char	*fmtoutput;		/* set by format_jobspec() */
51 	long	 startnum;
52 	long	 endrange;
53 	int	 pluralfmt;		/* boolean set by format_jobspec() */
54 	uint	 matchcnt;
55 };
56 STAILQ_HEAD(jobspec_hdr, jobspec);
57 
58 /*
59  * Format options for format_jobspec.
60  */
61 #define FMTJS_TERSE	1		/* user:jobrange@host */
62 #define FMTJS_VERBOSE	2		/* jobrange from user@host */
63 
64 /*
65  * Options for scanq_jobspec.
66  *
67  * The caller must choose the order that entries should be scanned:
68  * 1) JSORDER: Matched jobs are processed (by calling the "doentry()"
69  *    routine) in the order that the user specified those jobs.
70  * 2) QORDER: Matched jobs are processed in the order that the jobs are
71  *    listed the queue.  This guarantees that the "doentry()" routine
72  *    will be called only once per job.
73  *
74  * There is a "job_matched" variable in struct jobqueue, which is used
75  * to make sure that the "doentry()" will only be called once for any
76  * given job in JSORDER processing.  The "doentry()" routine can turn
77  * that off, if it does want to be called multiple times when the job
78  * is matched by multiple specifiers.
79  *
80  * The JSORDER processing will also call the "doentry()" routine once
81  * after each scan of the queue, with the jobqueue set to null.  This
82  * provides a way for the caller to print out a summary message for
83  * each jobspec that was given.
84  */
85 #define SCQ_JSORDER	0x0001		/* follow the user-specified order */
86 #define SCQ_QORDER	0x0002		/* the order of jobs in the queue */
87 
88 #include "lp.cdefs.h"		/* A cross-platform version of <sys/cdefs.h> */
89 
90 __BEGIN_DECLS
91 struct	 jobqueue;
92 
93 typedef	int	 process_jqe(void *_myinfo, struct jobqueue *_jq,
94 		    struct jobspec *_jspec);
95 
96 void	 format_jobspec(struct jobspec *_jspec, int _fmt_wanted);
97 void	 free_jobspec(struct jobspec_hdr *_js_hdr);
98 int	 scanq_jobspec(int _qitems, struct jobqueue **_squeue, int _sopts,
99 	    struct jobspec_hdr *_js_hdr, process_jqe _doentry,
100 	    void *_doentryinfo);
101 int	 parse_jobspec(char *_jobstr, struct jobspec_hdr *_js_hdr);
102 __END_DECLS
103 
104