xref: /onnv-gate/usr/src/cmd/lp/lib/forms/getform.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
28*0Sstevel@tonic-gate /*	  All Rights Reserved  	*/
29*0Sstevel@tonic-gate 
30*0Sstevel@tonic-gate 
31*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.14	*/
32*0Sstevel@tonic-gate /* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */
33*0Sstevel@tonic-gate 
34*0Sstevel@tonic-gate #include "stdio.h"
35*0Sstevel@tonic-gate #include "string.h"
36*0Sstevel@tonic-gate #include "errno.h"
37*0Sstevel@tonic-gate #include "sys/types.h"
38*0Sstevel@tonic-gate #include "stdlib.h"
39*0Sstevel@tonic-gate 
40*0Sstevel@tonic-gate #include "lp.h"
41*0Sstevel@tonic-gate #include "form.h"
42*0Sstevel@tonic-gate 
43*0Sstevel@tonic-gate /*
44*0Sstevel@tonic-gate  * getform() - EXTRACT FORM STRUCTURE FROM DISK FILE
45*0Sstevel@tonic-gate  *
46*0Sstevel@tonic-gate  * The FILE **align_fp doesn't need to be changed for scalability, because
47*0Sstevel@tonic-gate  * it is always NULL when getform is called by lpsched.
48*0Sstevel@tonic-gate  */
49*0Sstevel@tonic-gate int
getform(char * name,FORM * formp,FALERT * alertp,FILE ** align_fp)50*0Sstevel@tonic-gate getform(char *name, FORM *formp, FALERT *alertp, FILE **align_fp)
51*0Sstevel@tonic-gate {
52*0Sstevel@tonic-gate 	static long		lastdir		= -1;
53*0Sstevel@tonic-gate 
54*0Sstevel@tonic-gate 	int fd;
55*0Sstevel@tonic-gate 
56*0Sstevel@tonic-gate 	register char *		path;
57*0Sstevel@tonic-gate 
58*0Sstevel@tonic-gate 
59*0Sstevel@tonic-gate 	if (!name || !*name) {
60*0Sstevel@tonic-gate 		errno = EINVAL;
61*0Sstevel@tonic-gate 		return (-1);
62*0Sstevel@tonic-gate 	}
63*0Sstevel@tonic-gate 
64*0Sstevel@tonic-gate 	/*
65*0Sstevel@tonic-gate 	 * Getting ``all''? If so, jump into the directory
66*0Sstevel@tonic-gate 	 * wherever we left off.
67*0Sstevel@tonic-gate 	 */
68*0Sstevel@tonic-gate 	if (STREQU(NAME_ALL, name)) {
69*0Sstevel@tonic-gate 		if (!(name = next_dir(Lp_A_Forms, &lastdir)))
70*0Sstevel@tonic-gate 			return (-1);
71*0Sstevel@tonic-gate 	} else
72*0Sstevel@tonic-gate 		lastdir = -1;
73*0Sstevel@tonic-gate 
74*0Sstevel@tonic-gate 
75*0Sstevel@tonic-gate 	/*
76*0Sstevel@tonic-gate 	 * Get the form configuration information (?)
77*0Sstevel@tonic-gate 	 */
78*0Sstevel@tonic-gate 	if (formp) {
79*0Sstevel@tonic-gate 		path = getformfile(name, DESCRIBE);
80*0Sstevel@tonic-gate 		if (!path)
81*0Sstevel@tonic-gate 			return (-1);
82*0Sstevel@tonic-gate 		if ((fd = open_locked(path, "r", 0)) < 0) {
83*0Sstevel@tonic-gate 			Free (path);
84*0Sstevel@tonic-gate 			return (-1);
85*0Sstevel@tonic-gate 		}
86*0Sstevel@tonic-gate 		Free (path);
87*0Sstevel@tonic-gate 
88*0Sstevel@tonic-gate 		if (rdform(name, formp, fd, 0, (int *)0) == -1) {
89*0Sstevel@tonic-gate 			close(fd);
90*0Sstevel@tonic-gate 			return (-1);
91*0Sstevel@tonic-gate 		}
92*0Sstevel@tonic-gate 		close(fd);
93*0Sstevel@tonic-gate 	}
94*0Sstevel@tonic-gate 
95*0Sstevel@tonic-gate 	/*
96*0Sstevel@tonic-gate 	 * Get the alert information (?)
97*0Sstevel@tonic-gate 	 */
98*0Sstevel@tonic-gate 	if (alertp) {
99*0Sstevel@tonic-gate 
100*0Sstevel@tonic-gate 		FALERT *		pa = getalert(Lp_A_Forms, name);
101*0Sstevel@tonic-gate 
102*0Sstevel@tonic-gate 
103*0Sstevel@tonic-gate 		/*
104*0Sstevel@tonic-gate 		 * Don't fail if we can't read it because of access
105*0Sstevel@tonic-gate 		 * permission UNLESS we're "root" or "lp"
106*0Sstevel@tonic-gate 		 */
107*0Sstevel@tonic-gate 		if (!pa) {
108*0Sstevel@tonic-gate 
109*0Sstevel@tonic-gate 			if (errno == ENOENT) {
110*0Sstevel@tonic-gate 				alertp->shcmd = 0;
111*0Sstevel@tonic-gate 				alertp->Q = alertp->W = -1;
112*0Sstevel@tonic-gate 
113*0Sstevel@tonic-gate 			} else if (errno == ENOTDIR) {
114*0Sstevel@tonic-gate 				freeform (formp);
115*0Sstevel@tonic-gate 				errno = ENOENT;	/* form doesn't exist */
116*0Sstevel@tonic-gate 				return (-1);
117*0Sstevel@tonic-gate 
118*0Sstevel@tonic-gate 			} else if (
119*0Sstevel@tonic-gate 				errno != EACCES
120*0Sstevel@tonic-gate 			     || !getpid()		  /* we be root */
121*0Sstevel@tonic-gate 			     || STREQU(getname(), LPUSER) /* we be lp   */
122*0Sstevel@tonic-gate 			) {
123*0Sstevel@tonic-gate 				freeform (formp);
124*0Sstevel@tonic-gate 				return (-1);
125*0Sstevel@tonic-gate 			}
126*0Sstevel@tonic-gate 
127*0Sstevel@tonic-gate 		} else
128*0Sstevel@tonic-gate 			*alertp = *pa;
129*0Sstevel@tonic-gate 	}
130*0Sstevel@tonic-gate 
131*0Sstevel@tonic-gate 	/*
132*0Sstevel@tonic-gate 	 * Get the alignment pattern (?)
133*0Sstevel@tonic-gate 	 */
134*0Sstevel@tonic-gate 	if (align_fp) {
135*0Sstevel@tonic-gate 		path = getformfile(name, ALIGN_PTRN);
136*0Sstevel@tonic-gate 		if (!path) {
137*0Sstevel@tonic-gate 			freeform (formp);
138*0Sstevel@tonic-gate 			errno = ENOMEM;
139*0Sstevel@tonic-gate 			return (-1);
140*0Sstevel@tonic-gate 		}
141*0Sstevel@tonic-gate 		if (
142*0Sstevel@tonic-gate 			!(*align_fp = open_lpfile(path, "r", 0))
143*0Sstevel@tonic-gate 		     && errno != ENOENT
144*0Sstevel@tonic-gate 		) {
145*0Sstevel@tonic-gate 			Free (path);
146*0Sstevel@tonic-gate 			freeform (formp);
147*0Sstevel@tonic-gate 			return (-1);
148*0Sstevel@tonic-gate 		}
149*0Sstevel@tonic-gate 		Free (path);
150*0Sstevel@tonic-gate 	}
151*0Sstevel@tonic-gate 
152*0Sstevel@tonic-gate 	return (0);
153*0Sstevel@tonic-gate }
154