1 | /* -*- mode: C; c-file-style: "gnu" -*- */ |
2 | /* xdgmimealias.c: Private file. Datastructure for storing the aliases. |
3 | * |
4 | * More info can be found at http://www.freedesktop.org/standards/ |
5 | * |
6 | * Copyright (C) 2004 Red Hat, Inc. |
7 | * Copyright (C) 2004 Matthias Clasen <mclasen@redhat.com> |
8 | * |
9 | * Licensed under the Academic Free License version 2.0 |
10 | * Or under the following terms: |
11 | * |
12 | * This library is free software; you can redistribute it and/or |
13 | * modify it under the terms of the GNU Lesser General Public |
14 | * License as published by the Free Software Foundation; either |
15 | * version 2.1 of the License, or (at your option) any later version. |
16 | * |
17 | * This library is distributed in the hope that it will be useful, |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
20 | * Lesser General Public License for more details. |
21 | * |
22 | * You should have received a copy of the GNU Lesser General Public |
23 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
24 | */ |
25 | |
26 | #include "config.h" |
27 | |
28 | #include "xdgmimealias.h" |
29 | #include "xdgmimeint.h" |
30 | #include <stdlib.h> |
31 | #include <stdio.h> |
32 | #include <assert.h> |
33 | #include <string.h> |
34 | #include <fnmatch.h> |
35 | |
36 | #ifndef FALSE |
37 | #define FALSE (0) |
38 | #endif |
39 | |
40 | #ifndef TRUE |
41 | #define TRUE (!FALSE) |
42 | #endif |
43 | |
44 | typedef struct XdgAlias XdgAlias; |
45 | |
46 | struct XdgAlias |
47 | { |
48 | char *alias; |
49 | char *mime_type; |
50 | }; |
51 | |
52 | struct XdgAliasList |
53 | { |
54 | struct XdgAlias *aliases; |
55 | int n_aliases; |
56 | }; |
57 | |
58 | XdgAliasList * |
59 | _xdg_mime_alias_list_new (void) |
60 | { |
61 | XdgAliasList *list; |
62 | |
63 | list = malloc (size: sizeof (XdgAliasList)); |
64 | |
65 | list->aliases = NULL; |
66 | list->n_aliases = 0; |
67 | |
68 | return list; |
69 | } |
70 | |
71 | void |
72 | _xdg_mime_alias_list_free (XdgAliasList *list) |
73 | { |
74 | int i; |
75 | |
76 | if (list->aliases) |
77 | { |
78 | for (i = 0; i < list->n_aliases; i++) |
79 | { |
80 | free (ptr: list->aliases[i].alias); |
81 | free (ptr: list->aliases[i].mime_type); |
82 | } |
83 | free (ptr: list->aliases); |
84 | } |
85 | free (ptr: list); |
86 | } |
87 | |
88 | static int |
89 | alias_entry_cmp (const void *v1, const void *v2) |
90 | { |
91 | return strcmp (s1: ((XdgAlias *)v1)->alias, s2: ((XdgAlias *)v2)->alias); |
92 | } |
93 | |
94 | const char * |
95 | _xdg_mime_alias_list_lookup (XdgAliasList *list, |
96 | const char *alias) |
97 | { |
98 | XdgAlias *entry; |
99 | XdgAlias key; |
100 | |
101 | if (list->n_aliases > 0) |
102 | { |
103 | key.alias = (char *)alias; |
104 | key.mime_type = NULL; |
105 | |
106 | entry = bsearch (key: &key, base: list->aliases, nmemb: list->n_aliases, |
107 | size: sizeof (XdgAlias), compar: alias_entry_cmp); |
108 | if (entry) |
109 | return entry->mime_type; |
110 | } |
111 | |
112 | return NULL; |
113 | } |
114 | |
115 | void |
116 | _xdg_mime_alias_read_from_file (XdgAliasList *list, |
117 | const char *file_name) |
118 | { |
119 | FILE *file; |
120 | char line[255]; |
121 | int alloc; |
122 | |
123 | file = fopen (filename: file_name, modes: "r" ); |
124 | |
125 | if (file == NULL) |
126 | return; |
127 | |
128 | /* FIXME: Not UTF-8 safe. Doesn't work if lines are greater than 255 chars. |
129 | * Blah */ |
130 | alloc = list->n_aliases + 16; |
131 | list->aliases = realloc (ptr: list->aliases, size: alloc * sizeof (XdgAlias)); |
132 | while (fgets (s: line, n: 255, stream: file) != NULL) |
133 | { |
134 | char *sep; |
135 | if (line[0] == '#') |
136 | continue; |
137 | |
138 | sep = strchr (s: line, c: ' '); |
139 | if (sep == NULL) |
140 | continue; |
141 | *(sep++) = '\000'; |
142 | sep[strlen (s: sep) -1] = '\000'; |
143 | if (list->n_aliases == alloc) |
144 | { |
145 | alloc <<= 1; |
146 | list->aliases = realloc (ptr: list->aliases, |
147 | size: alloc * sizeof (XdgAlias)); |
148 | } |
149 | list->aliases[list->n_aliases].alias = strdup (s: line); |
150 | list->aliases[list->n_aliases].mime_type = strdup (s: sep); |
151 | list->n_aliases++; |
152 | } |
153 | list->aliases = realloc (ptr: list->aliases, |
154 | size: list->n_aliases * sizeof (XdgAlias)); |
155 | |
156 | fclose (stream: file); |
157 | |
158 | if (list->n_aliases > 1) |
159 | qsort (base: list->aliases, nmemb: list->n_aliases, |
160 | size: sizeof (XdgAlias), compar: alias_entry_cmp); |
161 | } |
162 | |
163 | |
164 | #ifdef NOT_USED_IN_GIO |
165 | |
166 | void |
167 | _xdg_mime_alias_list_dump (XdgAliasList *list) |
168 | { |
169 | int i; |
170 | |
171 | if (list->aliases) |
172 | { |
173 | for (i = 0; i < list->n_aliases; i++) |
174 | { |
175 | printf ("%s %s\n" , |
176 | list->aliases[i].alias, |
177 | list->aliases[i].mime_type); |
178 | } |
179 | } |
180 | } |
181 | |
182 | #endif |
183 | |