1/*-------------------------------------------------------------------------
2 *
3 * UTF8 and Cyrillic
4 *
5 * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
6 * Portions Copyright (c) 1994, Regents of the University of California
7 *
8 * IDENTIFICATION
9 * src/backend/utils/mb/conversion_procs/utf8_and_cyrillic/utf8_and_cyrillic.c
10 *
11 *-------------------------------------------------------------------------
12 */
13
14#include "postgres.h"
15#include "fmgr.h"
16#include "mb/pg_wchar.h"
17#include "../../Unicode/utf8_to_koi8r.map"
18#include "../../Unicode/koi8r_to_utf8.map"
19#include "../../Unicode/utf8_to_koi8u.map"
20#include "../../Unicode/koi8u_to_utf8.map"
21
22PG_MODULE_MAGIC;
23
24PG_FUNCTION_INFO_V1(utf8_to_koi8r);
25PG_FUNCTION_INFO_V1(koi8r_to_utf8);
26
27PG_FUNCTION_INFO_V1(utf8_to_koi8u);
28PG_FUNCTION_INFO_V1(koi8u_to_utf8);
29
30/* ----------
31 * conv_proc(
32 * INTEGER, -- source encoding id
33 * INTEGER, -- destination encoding id
34 * CSTRING, -- source string (null terminated C string)
35 * CSTRING, -- destination string (null terminated C string)
36 * INTEGER -- source string length
37 * ) returns VOID;
38 * ----------
39 */
40
41Datum
42utf8_to_koi8r(PG_FUNCTION_ARGS)
43{
44 unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
45 unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
46 int len = PG_GETARG_INT32(4);
47
48 CHECK_ENCODING_CONVERSION_ARGS(PG_UTF8, PG_KOI8R);
49
50 UtfToLocal(src, len, dest,
51 &koi8r_from_unicode_tree,
52 NULL, 0,
53 NULL,
54 PG_KOI8R);
55
56 PG_RETURN_VOID();
57}
58
59Datum
60koi8r_to_utf8(PG_FUNCTION_ARGS)
61{
62 unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
63 unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
64 int len = PG_GETARG_INT32(4);
65
66 CHECK_ENCODING_CONVERSION_ARGS(PG_KOI8R, PG_UTF8);
67
68 LocalToUtf(src, len, dest,
69 &koi8r_to_unicode_tree,
70 NULL, 0,
71 NULL,
72 PG_KOI8R);
73
74 PG_RETURN_VOID();
75}
76
77Datum
78utf8_to_koi8u(PG_FUNCTION_ARGS)
79{
80 unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
81 unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
82 int len = PG_GETARG_INT32(4);
83
84 CHECK_ENCODING_CONVERSION_ARGS(PG_UTF8, PG_KOI8U);
85
86 UtfToLocal(src, len, dest,
87 &koi8u_from_unicode_tree,
88 NULL, 0,
89 NULL,
90 PG_KOI8U);
91
92 PG_RETURN_VOID();
93}
94
95Datum
96koi8u_to_utf8(PG_FUNCTION_ARGS)
97{
98 unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
99 unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
100 int len = PG_GETARG_INT32(4);
101
102 CHECK_ENCODING_CONVERSION_ARGS(PG_KOI8U, PG_UTF8);
103
104 LocalToUtf(src, len, dest,
105 &koi8u_to_unicode_tree,
106 NULL, 0,
107 NULL,
108 PG_KOI8U);
109
110 PG_RETURN_VOID();
111}
112