xref: /illumos-gate/usr/src/cmd/lp/lib/requests/getrequest.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
28 /*	  All Rights Reserved  	*/
29 
30 
31 #pragma ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.14	*/
32 /* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */
33 
34 #include "stdio.h"
35 #include "string.h"
36 #include "errno.h"
37 #include "sys/types.h"
38 #include "stdlib.h"
39 
40 #include "lp.h"
41 #include "requests.h"
42 
43 extern struct {
44 	char			*v;
45 	short			len;
46 }			reqheadings[];
47 
48 /**
49  ** getrequest() - EXTRACT REQUEST STRUCTURE FROM DISK FILE
50  **/
51 
52 REQUEST *
53 #if	defined(__STDC__)
54 getrequest (
55 	char *			file
56 )
57 #else
58 getrequest (file)
59 	char			*file;
60 #endif
61 {
62 	static REQUEST		reqbuf;
63 
64 	char			buf[BUFSIZ],
65 				*path,
66 				*p;
67 
68 	int fd;
69 
70 	int			fld;
71 
72 
73 	/*
74 	 * Full pathname? If so the file must lie in LP's
75 	 * regular temporary directory.
76 	 */
77 	if (*file == '/') {
78 		if (!STRNEQU(file, Lp_Tmp, strlen(Lp_Tmp))) {
79 			errno = EINVAL;
80 			return (0);
81 		}
82 		path = Strdup(file);
83 
84 	/*
85 	 * A relative pathname (such as system/name)?
86 	 * If so we'll locate it under LP's regular temporary
87 	 * directory.
88 	 */
89 	} else if (strchr(file, '/')) {
90 		if (!(path = makepath(Lp_Tmp, file, (char *)0)))
91 			return (0);
92 
93 	/*
94 	 * It must be a simple name. Locate this under the
95 	 * special temporary directory that is linked to the
96 	 * regular place for the local system.
97 	 */
98 	} else if (!(path = makepath(Lp_Temp, file, (char *)0)))
99 		return (0);
100 
101 
102 	if ((fd = open_locked(path, "r", 0)) < 0) {
103 		Free (path);
104 		return (0);
105 	}
106 	Free (path);
107 
108 	reqbuf.copies		= 1;
109 	reqbuf.destination	= 0;
110 	reqbuf.file_list	= 0;
111 	reqbuf.form		= 0;
112 	reqbuf.actions		= 0;
113 	reqbuf.alert		= 0;
114 	reqbuf.options		= 0;
115 	reqbuf.priority		= -1;
116 	reqbuf.pages		= 0;
117 	reqbuf.charset		= 0;
118 	reqbuf.modes		= 0;
119 	reqbuf.title		= 0;
120 	reqbuf.input_type	= 0;
121 	reqbuf.user		= 0;
122 	reqbuf.outcome		= 0;
123 	reqbuf.version		= VERSION_OLD_LP;
124 
125 	errno = 0;
126 	while (fdgets(buf, BUFSIZ, fd)) {
127 
128 		buf[strlen(buf) - 1] = 0;
129 
130 		for (fld = 0; fld < RQ_MAX; fld++)
131 			if (
132 				reqheadings[fld].v
133 			     && reqheadings[fld].len
134 			     && STRNEQU(
135 					buf,
136 					reqheadings[fld].v,
137 					reqheadings[fld].len
138 				)
139 			) {
140 				p = buf + reqheadings[fld].len;
141 				break;
142 			}
143 
144 		/*
145 		 * To allow future extensions to not impact applications
146 		 * using old versions of this routine, ignore strange
147 		 * fields.
148 		 */
149 		if (fld >= RQ_MAX)
150 			continue;
151 
152 		switch (fld) {
153 
154 		case RQ_COPIES:
155 			reqbuf.copies = atoi(p);
156 			break;
157 
158 		case RQ_DEST:
159 			reqbuf.destination = Strdup(p);
160 			break;
161 
162 		case RQ_FILE:
163 			appendlist (&reqbuf.file_list, p);
164 			break;
165 
166 		case RQ_FORM:
167 			if (!STREQU(p, NAME_ANY))
168 				reqbuf.form = Strdup(p);
169 			break;
170 
171 		case RQ_HANDL:
172 			if (STREQU(p, NAME_RESUME))
173 				reqbuf.actions |= ACT_RESUME;
174 			else if (STREQU(p, NAME_HOLD))
175 				reqbuf.actions |= ACT_HOLD;
176 			else if (STREQU(p, NAME_IMMEDIATE))
177 				reqbuf.actions |= ACT_IMMEDIATE;
178 			break;
179 
180 		case RQ_NOTIFY:
181 			if (STREQU(p, "M"))
182 				reqbuf.actions |= ACT_MAIL;
183 			else if (STREQU(p, "W"))
184 				reqbuf.actions |= ACT_WRITE;
185 			else if (STREQU(p, "N"))
186 				reqbuf.actions |= ACT_NOTIFY;
187 			else
188 				reqbuf.alert = Strdup(p);
189 			break;
190 
191 		case RQ_OPTS:
192 			reqbuf.options = Strdup(p);
193 			break;
194 
195 		case RQ_PRIOR:
196 			reqbuf.priority = atoi(p);
197 			break;
198 
199 		case RQ_PAGES:
200 			reqbuf.pages = Strdup(p);
201 			break;
202 
203 		case RQ_CHARS:
204 			if (!STREQU(p, NAME_ANY))
205 				reqbuf.charset = Strdup(p);
206 			break;
207 
208 		case RQ_TITLE:
209 			reqbuf.title = Strdup(p);
210 			break;
211 
212 		case RQ_MODES:
213 			reqbuf.modes = Strdup(p);
214 			break;
215 
216 		case RQ_TYPE:
217 			reqbuf.input_type = Strdup(p);
218 			break;
219 
220 		case RQ_USER:
221 			reqbuf.user = Strdup(p);
222 			break;
223 
224 		case RQ_RAW:
225 			reqbuf.actions |= ACT_RAW;
226 			break;
227 
228 		case RQ_FAST:
229 			reqbuf.actions |= ACT_FAST;
230 			break;
231 
232 		case RQ_STAT:
233 			reqbuf.outcome = (ushort)strtol(p, (char **)0, 16);
234 			break;
235 
236 		case RQ_VERSION:
237 			reqbuf.version = atoi(p);
238 			break;
239 
240 		}
241 
242 	}
243 	if (errno != 0) {
244 		int			save_errno = errno;
245 
246 		close(fd);
247 		errno = save_errno;
248 		return (0);
249 	}
250 	close(fd);
251 
252 	/*
253 	 * Now go through the structure and see if we have
254 	 * anything strange.
255 	 */
256 	if (
257 		reqbuf.copies <= 0
258 	     || !reqbuf.file_list || !*(reqbuf.file_list)
259 	     || reqbuf.priority < -1 || 39 < reqbuf.priority
260 	     || STREQU(reqbuf.input_type, NAME_ANY)
261 	     || STREQU(reqbuf.input_type, NAME_TERMINFO)
262 	) {
263 		freerequest (&reqbuf);
264 		errno = EBADF;
265 		return (0);
266 	}
267 
268 	/*
269 	 * Guarantee some return values won't be null or empty.
270 	 */
271 	if (!reqbuf.destination || !*reqbuf.destination) {
272 		if (reqbuf.destination)
273 			Free (reqbuf.destination);
274 		reqbuf.destination = Strdup(NAME_ANY);
275 	}
276 	if (!reqbuf.input_type || !*reqbuf.input_type) {
277 		if (reqbuf.input_type)
278 			Free (reqbuf.input_type);
279 		reqbuf.input_type = Strdup(NAME_SIMPLE);
280 	}
281 
282 	return (&reqbuf);
283 }
284