1 /*-------------------------------------------------------------------------
2 *
3 * SJIS <--> UTF8
4 *
5 * Portions Copyright (c) 1996-2021, 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_sjis/utf8_and_sjis.c
10 *
11 *-------------------------------------------------------------------------
12 */
13
14 #include "postgres.h"
15 #include "fmgr.h"
16 #include "mb/pg_wchar.h"
17 #include "../../Unicode/sjis_to_utf8.map"
18 #include "../../Unicode/utf8_to_sjis.map"
19
20 PG_MODULE_MAGIC;
21
22 PG_FUNCTION_INFO_V1(sjis_to_utf8);
23 PG_FUNCTION_INFO_V1(utf8_to_sjis);
24
25 /* ----------
26 * conv_proc(
27 * INTEGER, -- source encoding id
28 * INTEGER, -- destination encoding id
29 * CSTRING, -- source string (null terminated C string)
30 * CSTRING, -- destination string (null terminated C string)
31 * INTEGER, -- source string length
32 * BOOL -- if true, don't throw an error if conversion fails
33 * ) returns INTEGER;
34 *
35 * Returns the number of bytes successfully converted.
36 * ----------
37 */
38 Datum
sjis_to_utf8(PG_FUNCTION_ARGS)39 sjis_to_utf8(PG_FUNCTION_ARGS)
40 {
41 unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
42 unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
43 int len = PG_GETARG_INT32(4);
44 bool noError = PG_GETARG_BOOL(5);
45 int converted;
46
47 CHECK_ENCODING_CONVERSION_ARGS(PG_SJIS, PG_UTF8);
48
49 converted = LocalToUtf(src, len, dest,
50 &sjis_to_unicode_tree,
51 NULL, 0,
52 NULL,
53 PG_SJIS,
54 noError);
55
56 PG_RETURN_INT32(converted);
57 }
58
59 Datum
utf8_to_sjis(PG_FUNCTION_ARGS)60 utf8_to_sjis(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 bool noError = PG_GETARG_BOOL(5);
66 int converted;
67
68 CHECK_ENCODING_CONVERSION_ARGS(PG_UTF8, PG_SJIS);
69
70 converted = UtfToLocal(src, len, dest,
71 &sjis_from_unicode_tree,
72 NULL, 0,
73 NULL,
74 PG_SJIS,
75 noError);
76
77 PG_RETURN_INT32(converted);
78 }
79