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charsets.h
1 /* charsets.h
2 * Routines for handling character sets
3 *
4 * Wireshark - Network traffic analyzer
5 * By Gerald Combs <gerald@wireshark.org>
6 * Copyright 1998 Gerald Combs
7 *
8 * SPDX-License-Identifier: GPL-2.0-or-later
9 */
10 #ifndef __CHARSETS_H__
11 #define __CHARSETS_H__
12
13 #include "ws_symbol_export.h"
14
15 #ifdef __cplusplus
16 extern "C" {
17 #endif /* __cplusplus */
18
19 /*
20 * Translation tables that map the upper 128 code points in single-byte
21 * "extended ASCII" character encodings to Unicode code points in the
22 * Basic Multilingual Plane.
23 */
24
25 /* Table for windows-1250 */
26 extern const gunichar2 charset_table_cp1250[0x80];
27
28 /* Tables for ISO-8859-X */
29 extern const gunichar2 charset_table_iso_8859_2[0x80];
30 extern const gunichar2 charset_table_iso_8859_3[0x80];
31 extern const gunichar2 charset_table_iso_8859_4[0x80];
32 extern const gunichar2 charset_table_iso_8859_5[0x80];
33 extern const gunichar2 charset_table_iso_8859_6[0x80];
34 extern const gunichar2 charset_table_iso_8859_7[0x80];
35 extern const gunichar2 charset_table_iso_8859_8[0x80];
36 extern const gunichar2 charset_table_iso_8859_9[0x80];
37 extern const gunichar2 charset_table_iso_8859_10[0x80];
38 extern const gunichar2 charset_table_iso_8859_11[0x80];
39 extern const gunichar2 charset_table_iso_8859_13[0x80];
40 extern const gunichar2 charset_table_iso_8859_14[0x80];
41 extern const gunichar2 charset_table_iso_8859_15[0x80];
42 extern const gunichar2 charset_table_iso_8859_16[0x80];
43
44 /* Tables for Mac character sets */
45 extern const gunichar2 charset_table_mac_roman[0x80];
46
47 /* Tables for DOS code pages */
48 extern const gunichar2 charset_table_cp437[0x80];
49
50 /* Tables for EBCDIC code pages */
51 extern const gunichar2 charset_table_ebcdic[256];
52 extern const gunichar2 charset_table_ebcdic_cp037[256];
53
54 /*
55 * Given a wmem scope, a pointer, and a length, treat the string of bytes
56 * referred to by the pointer and length as an ASCII string, with all bytes
57 * with the high-order bit set being invalid, and return a pointer to a
58 * UTF-8 string, allocated using the wmem scope.
59 *
60 * Octets with the highest bit set will be converted to the Unicode
61 * REPLACEMENT CHARACTER.
62 */
63 WS_DLL_PUBLIC guint8 *
64 get_ascii_string(wmem_allocator_t *scope, const guint8 *ptr, gint length);
65
66 WS_DLL_PUBLIC guint8 *
67 get_8859_1_string(wmem_allocator_t *scope, const guint8 *ptr, gint length);
68
69 WS_DLL_PUBLIC guint8 *
70 get_unichar2_string(wmem_allocator_t *scope, const guint8 *ptr, gint length, const gunichar2 table[0x80]);
71
72 WS_DLL_PUBLIC guint8 *
73 get_ucs_2_string(wmem_allocator_t *scope, const guint8 *ptr, gint length, const guint encoding);
74
75 WS_DLL_PUBLIC guint8 *
76 get_utf_16_string(wmem_allocator_t *scope, const guint8 *ptr, gint length, const guint encoding);
77
78 WS_DLL_PUBLIC guint8 *
79 get_ucs_4_string(wmem_allocator_t *scope, const guint8 *ptr, gint length, const guint encoding);
80
81 WS_DLL_PUBLIC guint8 *
82 get_ts_23_038_7bits_string(wmem_allocator_t *scope, const guint8 *ptr,
83 const gint bit_offset, gint no_of_chars);
84
85 WS_DLL_PUBLIC guint8 *
86 get_ascii_7bits_string(wmem_allocator_t *scope, const guint8 *ptr,
87 const gint bit_offset, gint no_of_chars);
88
89 WS_DLL_PUBLIC guint8 *
90 get_nonascii_unichar2_string(wmem_allocator_t *scope, const guint8 *ptr, gint length, const gunichar2 table[256]);
91
92 WS_DLL_PUBLIC guint8 *
93 get_t61_string(wmem_allocator_t *scope, const guint8 *ptr, gint length);
94
95 #if 0
96 void ASCII_to_EBCDIC(guint8 *buf, guint bytes);
97 guint8 ASCII_to_EBCDIC1(guint8 c);
98 #endif
99 WS_DLL_PUBLIC
100 void EBCDIC_to_ASCII(guint8 *buf, guint bytes);
101 WS_DLL_PUBLIC
102 guint8 EBCDIC_to_ASCII1(guint8 c);
103
104 #ifdef __cplusplus
105 }
106 #endif /* __cplusplus */
107
108 #endif /* __CHARSETS_H__ */
109
110 /*
111 * Editor modelines - http://www.wireshark.org/tools/modelines.html
112 *
113 * Local variables:
114 * c-basic-offset: 4
115 * tab-width: 8
116 * indent-tabs-mode: nil
117 * End:
118 *
119 * vi: set shiftwidth=4 tabstop=8 expandtab:
120 * :indentSize=4:tabSize=8:noTabs=true:
121 */
_wmem_allocator_t
Definition: wmem_allocator.h:26