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cf31d981 SI |
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 | * | |
73d5a30a | 9 | * SPDX-License-Identifier: LGPL-2.1-or-later or AFL-2.0 |
cf31d981 SI |
10 | */ |
11 | ||
12 | #ifdef HAVE_CONFIG_H | |
13 | #include <config.h> | |
14 | #endif | |
15 | ||
16 | #include "xdgmimealias.h" | |
17 | #include "xdgmimeint.h" | |
18 | #include <stdlib.h> | |
19 | #include <stdio.h> | |
20 | #include <assert.h> | |
21 | #include <string.h> | |
22 | #include <fnmatch.h> | |
23 | ||
24 | #ifndef FALSE | |
25 | #define FALSE (0) | |
26 | #endif | |
27 | ||
28 | #ifndef TRUE | |
29 | #define TRUE (!FALSE) | |
30 | #endif | |
31 | ||
32 | typedef struct XdgAlias XdgAlias; | |
33 | ||
34 | struct XdgAlias | |
35 | { | |
36 | char *alias; | |
37 | char *mime_type; | |
38 | }; | |
39 | ||
40 | struct XdgAliasList | |
41 | { | |
42 | struct XdgAlias *aliases; | |
43 | int n_aliases; | |
44 | }; | |
45 | ||
46 | XdgAliasList * | |
47 | _xdg_mime_alias_list_new (void) | |
48 | { | |
49 | XdgAliasList *list; | |
50 | ||
51 | list = malloc (sizeof (XdgAliasList)); | |
52 | ||
53 | list->aliases = NULL; | |
54 | list->n_aliases = 0; | |
55 | ||
56 | return list; | |
57 | } | |
58 | ||
59 | void | |
60 | _xdg_mime_alias_list_free (XdgAliasList *list) | |
61 | { | |
62 | int i; | |
63 | ||
64 | if (list->aliases) | |
65 | { | |
66 | for (i = 0; i < list->n_aliases; i++) | |
67 | { | |
68 | free (list->aliases[i].alias); | |
69 | free (list->aliases[i].mime_type); | |
70 | } | |
71 | free (list->aliases); | |
72 | } | |
73 | free (list); | |
74 | } | |
75 | ||
76 | static int | |
77 | alias_entry_cmp (const void *v1, const void *v2) | |
78 | { | |
79 | return strcmp (((XdgAlias *)v1)->alias, ((XdgAlias *)v2)->alias); | |
80 | } | |
81 | ||
82 | const char * | |
83 | _xdg_mime_alias_list_lookup (XdgAliasList *list, | |
84 | const char *alias) | |
85 | { | |
86 | XdgAlias *entry; | |
87 | XdgAlias key; | |
88 | ||
89 | if (list->n_aliases > 0) | |
90 | { | |
91 | key.alias = (char *)alias; | |
92 | key.mime_type = NULL; | |
93 | ||
94 | entry = bsearch (&key, list->aliases, list->n_aliases, | |
95 | sizeof (XdgAlias), alias_entry_cmp); | |
96 | if (entry) | |
97 | return entry->mime_type; | |
98 | } | |
99 | ||
100 | return NULL; | |
101 | } | |
102 | ||
103 | void | |
104 | _xdg_mime_alias_read_from_file (XdgAliasList *list, | |
105 | const char *file_name) | |
106 | { | |
107 | FILE *file; | |
108 | char line[255]; | |
109 | int alloc; | |
110 | ||
111 | file = fopen (file_name, "r"); | |
112 | ||
113 | if (file == NULL) | |
114 | return; | |
115 | ||
116 | /* FIXME: Not UTF-8 safe. Doesn't work if lines are greater than 255 chars. | |
117 | * Blah */ | |
118 | alloc = list->n_aliases + 16; | |
119 | list->aliases = realloc (list->aliases, alloc * sizeof (XdgAlias)); | |
120 | while (fgets (line, 255, file) != NULL) | |
121 | { | |
122 | char *sep; | |
123 | if (line[0] == '#') | |
124 | continue; | |
125 | ||
126 | sep = strchr (line, ' '); | |
127 | if (sep == NULL) | |
128 | continue; | |
129 | *(sep++) = '\000'; | |
130 | sep[strlen (sep) -1] = '\000'; | |
131 | if (list->n_aliases == alloc) | |
132 | { | |
133 | alloc <<= 1; | |
134 | list->aliases = realloc (list->aliases, | |
135 | alloc * sizeof (XdgAlias)); | |
136 | } | |
137 | list->aliases[list->n_aliases].alias = strdup (line); | |
138 | list->aliases[list->n_aliases].mime_type = strdup (sep); | |
139 | list->n_aliases++; | |
140 | } | |
141 | list->aliases = realloc (list->aliases, | |
142 | list->n_aliases * sizeof (XdgAlias)); | |
143 | ||
144 | fclose (file); | |
145 | ||
146 | if (list->n_aliases > 1) | |
147 | qsort (list->aliases, list->n_aliases, | |
148 | sizeof (XdgAlias), alias_entry_cmp); | |
149 | } | |
150 | ||
151 | ||
152 | void | |
153 | _xdg_mime_alias_list_dump (XdgAliasList *list) | |
154 | { | |
155 | int i; | |
156 | ||
157 | if (list->aliases) | |
158 | { | |
159 | for (i = 0; i < list->n_aliases; i++) | |
160 | { | |
161 | printf ("%s %s\n", | |
162 | list->aliases[i].alias, | |
163 | list->aliases[i].mime_type); | |
164 | } | |
165 | } | |
166 | } | |
167 | ||
168 |