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 #pragma ident "%Z%%M% %I% %E% SMI"
32
33 /* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */
34
35 #include "stdio.h"
36 #include "string.h"
37 #include "stdlib.h"
38 #include "unistd.h"
39
40 #include "lp.h"
41 #include "filters.h"
42
43 static void q_print ( int , char * );
44
45 static char *fw_zDblQte (char *zBuf);
46
47 /**
48 ** dumpfilters() - WRITE FILTERS FROM INTERNAL STRUCTURE TO FILTER TABLE
49 **/
50
51 int
dumpfilters(char * file)52 dumpfilters(char *file)
53 {
54 register _FILTER *pf;
55 register TEMPLATE *pt;
56 register TYPE *pty;
57 register char *p,
58 *sep;
59 register int fld;
60 int fd;
61
62 if ((fd = open_filtertable(file, "w")) < 0)
63 return (-1);
64
65 printlist_setup ("", "", LP_SEP, "");
66 if (filters) for (pf = filters; pf->name; pf++) {
67
68 for (fld = 0; fld < FL_MAX; fld++) switch (fld) {
69 case FL_IGN:
70 break;
71 case FL_NAME:
72 p = pf->name;
73 goto String;
74 case FL_CMD:
75 if ((p = fw_zDblQte (pf->command)) != NULL) {
76 (void)fdprintf (fd, "%s%s", FL_SEP, p);
77 free (p);
78 break;
79 }
80 /* zDblQte failed so go without quotes */
81 p = pf->command;
82 String: (void)fdprintf (fd, "%s%s", FL_SEP, (p? p : ""));
83 break;
84 case FL_TYPE:
85 (void)fdprintf(fd, "%s%s", FL_SEP,
86 (pf->type == fl_fast? FL_FAST : FL_SLOW));
87 break;
88 case FL_PTYPS:
89 pty = pf->printer_types;
90 goto Types;
91 case FL_ITYPS:
92 pty = pf->input_types;
93 goto Types;
94 case FL_OTYPS:
95 pty = pf->output_types;
96 Types: (void)fdprintf(fd, "%s", FL_SEP);
97 sep = "";
98 if (pty) {
99 for (; pty->name; pty++) {
100 (void)fdprintf(fd, "%s%s", sep,
101 pty->name);
102 sep = ",";
103 }
104 } else
105 (void)fdprintf(fd, "%s", NAME_ANY);
106 break;
107 case FL_PRTRS:
108 (void)fdprintf(fd, "%s", FL_SEP);
109 if (pf->printers)
110 fdprintlist (fd, pf->printers);
111 else
112 (void)fdprintf(fd, "%s", NAME_ANY);
113 break;
114 case FL_TMPS:
115 (void)fdprintf(fd, "%s", FL_SEP);
116 sep = "";
117 if ((pt = pf->templates))
118 for(; pt->keyword; pt++) {
119 (void)fdprintf(fd, "%s%s ", sep,
120 pt->keyword);
121 q_print(fd, pt->pattern);
122 (void)fdprintf(fd, " = ");
123 q_print(fd, pt->result);
124 sep = ",";
125 }
126 break;
127 }
128 (void)fdprintf(fd, FL_END);
129 }
130
131 close(fd);
132 return (0);
133 }
134
135 /**
136 ** q_print() - PRINT STRING, QUOTING SEPARATOR CHARACTERS
137 **/
138
139 static void
q_print(int fd,char * str)140 q_print(int fd, char *str)
141 {
142 /*
143 * There are four reasons to quote a character: It is
144 * a quote (backslash) character, it is a field separator,
145 * it is a list separator, or it is a template separator.
146 * "loadfilters()" strips the quote (backslash), but not
147 * in one place.
148 */
149 if (!str)
150 return;
151 while (*str) {
152 if (
153 *str == '\\' /* quote reason #1 */
154 || strchr(FL_SEP, *str) /* quote reason #2 */
155 || strchr(LP_SEP, *str) /* quote reason #3 */
156 || strchr("=", *str) /* quote reason #4 */
157 )
158 fdputc ('\\', fd);
159 fdputc (*str, fd);
160 str++;
161 }
162 return;
163 }
164
165 /*********************************************************
166
167 fw_zDblQte
168
169 Duplicates the given string allocating memory
170 using malloc.
171
172 Double quotes are used to encase the string
173 and a backslash s put infront of any embedded
174 quotes.
175
176 returns a pointer to the string provided.
177
178 It the function runs out of memory it returns
179 NULL.
180
181
182 */
fw_zDblQte(char * zBuf)183 static char *fw_zDblQte (char *zBuf)
184 {
185 char *zT;
186 int i;
187 int j;
188 int iNewSize;
189
190 /* count the embedded double quotes */
191 for (i = j = 0; zBuf[i]; i++) {
192 if (zBuf[i] == '"') {
193 j++;
194 }
195 }
196
197 /*
198 Allocate a new buffer
199 add 3 extra bytes for:
200 the new leading double quote
201 the new trailing double quote
202 and the NULL
203 add an extra byte for each embedded double quote
204 */
205 iNewSize = (strlen (zBuf) + 3 + j);
206 if ((zT = malloc (iNewSize)) == NULL) {
207 return (NULL); /* buffer overflow */
208 }
209
210 j = 0;
211 zT[j++] = '"'; /* start with a leading double quote */
212 for (i = 0; zBuf[i]; i++) {
213 if (zBuf[i] == '"') {
214 zT[j++] = '\\';
215 }
216 zT[j++] = zBuf[i];
217 }
218
219 zT[j++] = '"'; /* add a trailing double quote */
220 zT[j] = '\0';
221
222 return (zT);
223 }
224
225