← Back to branch summary

~ubuntu-branches/ubuntu/oneiric/postgresql-9.1/oneiric-security

« back to all changes in this revision

Viewing changes to src/backend/utils/mb/conversion_procs/utf8_and_iso8859/utf8_and_iso8859.c

  • Committer: Bazaar Package Importer
  • Author(s): Martin Pitt
  • Date: 2011-05-11 10:41:53 UTC
  • Revision ID: james.westby@ubuntu.com-20110511104153-psbh2o58553fv1m0
Tags: upstream-9.1~beta1
Import upstream version 9.1~beta1

Show diffs side-by-side

added added

removed removed

Lines of Context:
src/backend/utils/mb/conversion_procs/utf8_and_iso8859/utf8_and_iso8859.c
 
1
/*-------------------------------------------------------------------------
 
2
 *
 
3
 *        ISO 8859 2-16 <--> UTF8
 
4
 *
 
5
 * Portions Copyright (c) 1996-2011, 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_iso8859/utf8_and_iso8859.c
 
10
 *
 
11
 *-------------------------------------------------------------------------
 
12
 */
 
13
 
 
14
#include "postgres.h"
 
15
#include "fmgr.h"
 
16
#include "mb/pg_wchar.h"
 
17
#include "../../Unicode/iso8859_10_to_utf8.map"
 
18
#include "../../Unicode/iso8859_13_to_utf8.map"
 
19
#include "../../Unicode/iso8859_14_to_utf8.map"
 
20
#include "../../Unicode/iso8859_15_to_utf8.map"
 
21
#include "../../Unicode/iso8859_2_to_utf8.map"
 
22
#include "../../Unicode/iso8859_3_to_utf8.map"
 
23
#include "../../Unicode/iso8859_4_to_utf8.map"
 
24
#include "../../Unicode/iso8859_5_to_utf8.map"
 
25
#include "../../Unicode/iso8859_6_to_utf8.map"
 
26
#include "../../Unicode/iso8859_7_to_utf8.map"
 
27
#include "../../Unicode/iso8859_8_to_utf8.map"
 
28
#include "../../Unicode/iso8859_9_to_utf8.map"
 
29
#include "../../Unicode/utf8_to_iso8859_10.map"
 
30
#include "../../Unicode/utf8_to_iso8859_13.map"
 
31
#include "../../Unicode/utf8_to_iso8859_14.map"
 
32
#include "../../Unicode/utf8_to_iso8859_15.map"
 
33
#include "../../Unicode/utf8_to_iso8859_16.map"
 
34
#include "../../Unicode/utf8_to_iso8859_2.map"
 
35
#include "../../Unicode/utf8_to_iso8859_3.map"
 
36
#include "../../Unicode/utf8_to_iso8859_4.map"
 
37
#include "../../Unicode/utf8_to_iso8859_5.map"
 
38
#include "../../Unicode/utf8_to_iso8859_6.map"
 
39
#include "../../Unicode/utf8_to_iso8859_7.map"
 
40
#include "../../Unicode/utf8_to_iso8859_8.map"
 
41
#include "../../Unicode/utf8_to_iso8859_9.map"
 
42
#include "../../Unicode/iso8859_16_to_utf8.map"
 
43
 
 
44
PG_MODULE_MAGIC;
 
45
 
 
46
PG_FUNCTION_INFO_V1(iso8859_to_utf8);
 
47
PG_FUNCTION_INFO_V1(utf8_to_iso8859);
 
48
 
 
49
extern Datum iso8859_to_utf8(PG_FUNCTION_ARGS);
 
50
extern Datum utf8_to_iso8859(PG_FUNCTION_ARGS);
 
51
 
 
52
/* ----------
 
53
 * conv_proc(
 
54
 *              INTEGER,        -- source encoding id
 
55
 *              INTEGER,        -- destination encoding id
 
56
 *              CSTRING,        -- source string (null terminated C string)
 
57
 *              CSTRING,        -- destination string (null terminated C string)
 
58
 *              INTEGER         -- source string length
 
59
 * ) returns VOID;
 
60
 * ----------
 
61
 */
 
62
 
 
63
typedef struct
 
64
{
 
65
        pg_enc          encoding;
 
66
        pg_local_to_utf *map1;          /* to UTF8 map name */
 
67
        pg_utf_to_local *map2;          /* from UTF8 map name */
 
68
        int                     size1;                  /* size of map1 */
 
69
        int                     size2;                  /* size of map2 */
 
70
} pg_conv_map;
 
71
 
 
72
static pg_conv_map maps[] = {
 
73
        {PG_LATIN2, LUmapISO8859_2, ULmapISO8859_2,
 
74
                sizeof(LUmapISO8859_2) / sizeof(pg_local_to_utf),
 
75
        sizeof(ULmapISO8859_2) / sizeof(pg_utf_to_local)},      /* ISO-8859-2 Latin 2 */
 
76
        {PG_LATIN3, LUmapISO8859_3, ULmapISO8859_3,
 
77
                sizeof(LUmapISO8859_3) / sizeof(pg_local_to_utf),
 
78
        sizeof(ULmapISO8859_3) / sizeof(pg_utf_to_local)},      /* ISO-8859-3 Latin 3 */
 
79
        {PG_LATIN4, LUmapISO8859_4, ULmapISO8859_4,
 
80
                sizeof(LUmapISO8859_4) / sizeof(pg_local_to_utf),
 
81
        sizeof(ULmapISO8859_4) / sizeof(pg_utf_to_local)},      /* ISO-8859-4 Latin 4 */
 
82
        {PG_LATIN5, LUmapISO8859_9, ULmapISO8859_9,
 
83
                sizeof(LUmapISO8859_9) / sizeof(pg_local_to_utf),
 
84
        sizeof(ULmapISO8859_9) / sizeof(pg_utf_to_local)},      /* ISO-8859-9 Latin 5 */
 
85
        {PG_LATIN6, LUmapISO8859_10, ULmapISO8859_10,
 
86
                sizeof(LUmapISO8859_10) / sizeof(pg_local_to_utf),
 
87
        sizeof(ULmapISO8859_10) / sizeof(pg_utf_to_local)}, /* ISO-8859-10 Latin 6 */
 
88
        {PG_LATIN7, LUmapISO8859_13, ULmapISO8859_13,
 
89
                sizeof(LUmapISO8859_13) / sizeof(pg_local_to_utf),
 
90
        sizeof(ULmapISO8859_13) / sizeof(pg_utf_to_local)}, /* ISO-8859-13 Latin 7 */
 
91
        {PG_LATIN8, LUmapISO8859_14, ULmapISO8859_14,
 
92
                sizeof(LUmapISO8859_14) / sizeof(pg_local_to_utf),
 
93
        sizeof(ULmapISO8859_14) / sizeof(pg_utf_to_local)}, /* ISO-8859-14 Latin 8 */
 
94
        {PG_LATIN9, LUmapISO8859_15, ULmapISO8859_15,
 
95
                sizeof(LUmapISO8859_15) / sizeof(pg_local_to_utf),
 
96
        sizeof(ULmapISO8859_15) / sizeof(pg_utf_to_local)}, /* ISO-8859-15 Latin 9 */
 
97
        {PG_LATIN10, LUmapISO8859_16, ULmapISO8859_16,
 
98
                sizeof(LUmapISO8859_16) / sizeof(pg_local_to_utf),
 
99
        sizeof(ULmapISO8859_16) / sizeof(pg_utf_to_local)}, /* ISO-8859-16 Latin 10 */
 
100
        {PG_ISO_8859_5, LUmapISO8859_5, ULmapISO8859_5,
 
101
                sizeof(LUmapISO8859_5) / sizeof(pg_local_to_utf),
 
102
        sizeof(ULmapISO8859_5) / sizeof(pg_utf_to_local)},      /* ISO-8859-5 */
 
103
        {PG_ISO_8859_6, LUmapISO8859_6, ULmapISO8859_6,
 
104
                sizeof(LUmapISO8859_6) / sizeof(pg_local_to_utf),
 
105
        sizeof(ULmapISO8859_6) / sizeof(pg_utf_to_local)},      /* ISO-8859-6 */
 
106
        {PG_ISO_8859_7, LUmapISO8859_7, ULmapISO8859_7,
 
107
                sizeof(LUmapISO8859_7) / sizeof(pg_local_to_utf),
 
108
        sizeof(ULmapISO8859_7) / sizeof(pg_utf_to_local)},      /* ISO-8859-7 */
 
109
        {PG_ISO_8859_8, LUmapISO8859_8, ULmapISO8859_8,
 
110
                sizeof(LUmapISO8859_8) / sizeof(pg_local_to_utf),
 
111
        sizeof(ULmapISO8859_8) / sizeof(pg_utf_to_local)},      /* ISO-8859-8 */
 
112
};
 
113
 
 
114
Datum
 
115
iso8859_to_utf8(PG_FUNCTION_ARGS)
 
116
{
 
117
        int                     encoding = PG_GETARG_INT32(0);
 
118
        unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
 
119
        unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
 
120
        int                     len = PG_GETARG_INT32(4);
 
121
        int                     i;
 
122
 
 
123
        CHECK_ENCODING_CONVERSION_ARGS(-1, PG_UTF8);
 
124
 
 
125
        for (i = 0; i < sizeof(maps) / sizeof(pg_conv_map); i++)
 
126
        {
 
127
                if (encoding == maps[i].encoding)
 
128
                {
 
129
                        LocalToUtf(src, dest, maps[i].map1, NULL, maps[i].size1, 0, encoding, len);
 
130
                        PG_RETURN_VOID();
 
131
                }
 
132
        }
 
133
 
 
134
        ereport(ERROR,
 
135
                        (errcode(ERRCODE_INTERNAL_ERROR),
 
136
                         errmsg("unexpected encoding ID %d for ISO 8859 character sets", encoding)));
 
137
 
 
138
        PG_RETURN_VOID();
 
139
}
 
140
 
 
141
Datum
 
142
utf8_to_iso8859(PG_FUNCTION_ARGS)
 
143
{
 
144
        int                     encoding = PG_GETARG_INT32(1);
 
145
        unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
 
146
        unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
 
147
        int                     len = PG_GETARG_INT32(4);
 
148
        int                     i;
 
149
 
 
150
        CHECK_ENCODING_CONVERSION_ARGS(PG_UTF8, -1);
 
151
 
 
152
        for (i = 0; i < sizeof(maps) / sizeof(pg_conv_map); i++)
 
153
        {
 
154
                if (encoding == maps[i].encoding)
 
155
                {
 
156
                        UtfToLocal(src, dest, maps[i].map2, NULL, maps[i].size2, 0, encoding, len);
 
157
                        PG_RETURN_VOID();
 
158
                }
 
159
        }
 
160
 
 
161
        ereport(ERROR,
 
162
                        (errcode(ERRCODE_INTERNAL_ERROR),
 
163
                         errmsg("unexpected encoding ID %d for ISO 8859 character sets", encoding)));
 
164
 
 
165
        PG_RETURN_VOID();
 
166
}