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 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
23 /* All Rights Reserved */
24
25
26 /*
27 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
28 * Use is subject to license terms.
29 */
30
31 /* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */
32
33 #include "stdio.h"
34 #include "string.h"
35 #include "stdlib.h"
36 #include "unistd.h"
37
38 #include "lp.h"
39 #include "filters.h"
40
41 static void q_print ( int , char * );
42
43 static char *fw_zDblQte (char *zBuf);
44
45 /**
46 ** dumpfilters() - WRITE FILTERS FROM INTERNAL STRUCTURE TO FILTER TABLE
47 **/
48
49 int
dumpfilters(char * file)50 dumpfilters(char *file)
51 {
52 register _FILTER *pf;
53 register TEMPLATE *pt;
54 register TYPE *pty;
55 register char *p,
56 *sep;
57 register int fld;
58 int fd;
59
60 if ((fd = open_filtertable(file, "w")) < 0)
61 return (-1);
62
63 printlist_setup ("", "", LP_SEP, "");
64 if (filters) for (pf = filters; pf->name; pf++) {
65
66 for (fld = 0; fld < FL_MAX; fld++) switch (fld) {
67 case FL_IGN:
68 break;
69 case FL_NAME:
70 p = pf->name;
71 goto String;
72 case FL_CMD:
73 if ((p = fw_zDblQte (pf->command)) != NULL) {
74 (void)fdprintf (fd, "%s%s", FL_SEP, p);
75 free (p);
76 break;
77 }
78 /* zDblQte failed so go without quotes */
79 p = pf->command;
80 String: (void)fdprintf (fd, "%s%s", FL_SEP, (p? p : ""));
81 break;
82 case FL_TYPE:
83 (void)fdprintf(fd, "%s%s", FL_SEP,
84 (pf->type == fl_fast? FL_FAST : FL_SLOW));
85 break;
86 case FL_PTYPS:
87 pty = pf->printer_types;
88 goto Types;
89 case FL_ITYPS:
90 pty = pf->input_types;
91 goto Types;
92 case FL_OTYPS:
93 pty = pf->output_types;
94 Types: (void)fdprintf(fd, "%s", FL_SEP);
95 sep = "";
96 if (pty) {
97 for (; pty->name; pty++) {
98 (void)fdprintf(fd, "%s%s", sep,
99 pty->name);
100 sep = ",";
101 }
102 } else
103 (void)fdprintf(fd, "%s", NAME_ANY);
104 break;
105 case FL_PRTRS:
106 (void)fdprintf(fd, "%s", FL_SEP);
107 if (pf->printers)
108 fdprintlist (fd, pf->printers);
109 else
110 (void)fdprintf(fd, "%s", NAME_ANY);
111 break;
112 case FL_TMPS:
113 (void)fdprintf(fd, "%s", FL_SEP);
114 sep = "";
115 if ((pt = pf->templates))
116 for(; pt->keyword; pt++) {
117 (void)fdprintf(fd, "%s%s ", sep,
118 pt->keyword);
119 q_print(fd, pt->pattern);
120 (void)fdprintf(fd, " = ");
121 q_print(fd, pt->result);
122 sep = ",";
123 }
124 break;
125 }
126 (void)fdprintf(fd, FL_END);
127 }
128
129 close(fd);
130 return (0);
131 }
132
133 /**
134 ** q_print() - PRINT STRING, QUOTING SEPARATOR CHARACTERS
135 **/
136
137 static void
q_print(int fd,char * str)138 q_print(int fd, char *str)
139 {
140 /*
141 * There are four reasons to quote a character: It is
142 * a quote (backslash) character, it is a field separator,
143 * it is a list separator, or it is a template separator.
144 * "loadfilters()" strips the quote (backslash), but not
145 * in one place.
146 */
147 if (!str)
148 return;
149 while (*str) {
150 if (
151 *str == '\\' /* quote reason #1 */
152 || strchr(FL_SEP, *str) /* quote reason #2 */
153 || strchr(LP_SEP, *str) /* quote reason #3 */
154 || strchr("=", *str) /* quote reason #4 */
155 )
156 fdputc ('\\', fd);
157 fdputc (*str, fd);
158 str++;
159 }
160 return;
161 }
162
163 /*********************************************************
164
165 fw_zDblQte
166
167 Duplicates the given string allocating memory
168 using malloc.
169
170 Double quotes are used to encase the string
171 and a backslash s put infront of any embedded
172 quotes.
173
174 returns a pointer to the string provided.
175
176 It the function runs out of memory it returns
177 NULL.
178
179
180 */
fw_zDblQte(char * zBuf)181 static char *fw_zDblQte (char *zBuf)
182 {
183 char *zT;
184 int i;
185 int j;
186 int iNewSize;
187
188 /* count the embedded double quotes */
189 for (i = j = 0; zBuf[i]; i++) {
190 if (zBuf[i] == '"') {
191 j++;
192 }
193 }
194
195 /*
196 Allocate a new buffer
197 add 3 extra bytes for:
198 the new leading double quote
199 the new trailing double quote
200 and the NULL
201 add an extra byte for each embedded double quote
202 */
203 iNewSize = (strlen (zBuf) + 3 + j);
204 if ((zT = malloc (iNewSize)) == NULL) {
205 return (NULL); /* buffer overflow */
206 }
207
208 j = 0;
209 zT[j++] = '"'; /* start with a leading double quote */
210 for (i = 0; zBuf[i]; i++) {
211 if (zBuf[i] == '"') {
212 zT[j++] = '\\';
213 }
214 zT[j++] = zBuf[i];
215 }
216
217 zT[j++] = '"'; /* add a trailing double quote */
218 zT[j] = '\0';
219
220 return (zT);
221 }
222
223