xref: /illumos-gate/usr/src/cmd/lp/lib/papi/ppd.c (revision 24fe0b3b)
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 (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #pragma ident	"%Z%%M%	%I%	%E% SMI"
27 
28 /*
29  * This file contains an extremely rudimentary implementation of PPD file
30  * parsing support.  The parsing done here converts the contents of a PPD
31  * file into a set of PAPI attributes that applications can use to build
32  * print panels.
33  */
34 
35 #include <stdio.h>
36 #include <ctype.h>
37 #include <string.h>
38 #include <papi.h>
39 
40 static void
41 process_line(char *line, char **key, char **value, char **comment)
42 {
43 	char *ptr, *ptr2;
44 
45 	*key = &line[1];
46 	*value = NULL;
47 	*comment = NULL;
48 
49 	if ((ptr = strchr(line, ':')) == NULL)
50 		return;
51 
52 	/*
53 	 * line is in the form:
54 	 *    *key: value/comment
55 	 * or
56 	 *    *key value/comment: data
57 	 */
58 	*ptr++ = NULL;
59 	while (isspace(*ptr) != 0)
60 		ptr++;
61 
62 	if ((ptr2 = strchr(line, ' ')) != NULL) {
63 		ptr = ptr2;
64 		/*
65 		 * line is in the form:
66 		 *    *key value/comment: data
67 		 */
68 		*ptr++ = NULL;
69 		while (*ptr == ' ')
70 			ptr++;
71 	}
72 
73 	if (*ptr == '*')
74 		ptr++;
75 
76 	*value = ptr;
77 
78 	if ((ptr = strchr(ptr, '/')) != NULL) {
79 		*ptr++ = NULL;
80 		*comment = ptr;
81 	}
82 }
83 
84 papi_status_t
85 PPDFileToAttributesList(papi_attribute_t ***attributes, char *filename)
86 {
87 	papi_status_t status = PAPI_OK;
88 	FILE *fp;
89 	char line[256];
90 	char capability[256];
91 	char def[256];
92 	char supported[256];
93 	char *current_group_name = NULL;
94 
95 	int ui = 0;
96 
97 	if ((fp = fopen(filename, "r")) == NULL)
98 		return (PAPI_NOT_POSSIBLE);
99 
100 	while ((status == PAPI_OK) &&
101 			(fgets(line, sizeof (line), fp) != NULL)) {
102 		char *key = NULL, *value = NULL, *text = NULL;
103 
104 		/* we want *key...: "value" */
105 		if (line[0] != '*')
106 			continue;
107 
108 		if (strchr(line, ':') == NULL)
109 			continue;
110 
111 		if ((text = strrchr(line, '\n')) != NULL)
112 			*text = NULL;
113 
114 		process_line(line, &key, &value, &text);
115 
116 		if ((strcasecmp(key, "PageSize") == 0) ||
117 		    (strcasecmp(key, "InputSlot") == 0))
118 			key = "media";
119 
120 		if (strcasecmp(key, "OpenGroup") == 0) {
121 			if (value == NULL)
122 				value = "unknown";
123 			current_group_name = strdup(value);
124 		} else if (strcasecmp(key, "OpenUI") == 0) {
125 			if ((strcasecmp(value, "PageSize") == 0) ||
126 			    (strcasecmp(value, "InputSlot") == 0))
127 				value = "media";
128 			snprintf(capability, sizeof (capability), "%s", value);
129 			snprintf(def, sizeof (def),
130 					"%s-default", value);
131 			snprintf(supported, sizeof (supported),
132 					"%s-supported", value);
133 			ui = 1;
134 		} else if (strcasecmp(key, "CloseGroup") == 0) {
135 			/* do nothing */
136 		} else if (strcasecmp(key, "CloseUI") == 0) {
137 			ui = 0;
138 			/* do nothing */
139 		} else if (strcasecmp(key, "Manufacturer") == 0) {
140 			status = papiAttributeListAddString(attributes,
141 					PAPI_ATTR_EXCL,
142 					"printer-make", value);
143 		} else if (strcasecmp(key, "ModelName") == 0) {
144 			status = papiAttributeListAddString(attributes,
145 					PAPI_ATTR_EXCL,
146 					"printer-model", value);
147 		} else if (strcasecmp(key, "ShortNickName") == 0) {
148 			status = papiAttributeListAddString(attributes,
149 					PAPI_ATTR_EXCL,
150 					"printer-make-and-model", value);
151 		} else if ((strncasecmp(key, "Default", 7) == 0) && ui) {
152 			status = papiAttributeListAddString(attributes,
153 					PAPI_ATTR_EXCL,
154 					def, value);
155 		} else if ((strcasecmp(key, capability) == 0) && ui) {
156 			status = papiAttributeListAddString(attributes,
157 					PAPI_ATTR_APPEND,
158 					supported, value);
159 		}
160 	}
161 	fclose(fp);
162 
163 	return (status);
164 }
165