1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
/*
Copyright (C) 2015-2020, Dirk Krause
SPDX-License-Identifier: BSD-3-Clause
*/
/*
WARNING: This file was generated by the dkct program (see
http://dktools.sourceforge.net/ for details).
Changes you make here will be lost if dkct is run again!
You should modify the original source and run dkct on it.
Original source: dk4rec03.ctr
*/
/** @file dk4rec03.c The dk4rec03 module.
*/
#line 87 "dk4rec03.ctr"
#include "dk4conf.h"
#include "dk4rec03.h"
#include "dk4mem.h"
#include "dk4utf8.h"
#if DK4_HAVE_ASSERT_H
#ifndef ASSERT_H_INCLUDED
#include <assert.h>
#define ASSERT_H_INCLUDED 1
#endif
#endif
size_t
dk4recode_size_ascii_to_utf8(const char *src, dk4_er_t *erp)
{
dk4_er_t er; /* Internal error report */
unsigned char buf[8]; /* current character UTF-8 encoded */
size_t sz; /* Size of current UTF-8 encoded character */
size_t rdb = 0; /* Number of bytes read from input */
size_t back = 0; /* Function result */
unsigned char uc; /* Currenct character */
#if DK4_USE_ASSERT
assert(NULL != src);
#endif
if (NULL != src) {
dk4error_init(&er);
while ('\0' != *src) {
uc = (unsigned char)(*(src++));
rdb++;
sz = sizeof(buf);
if (0 != dk4utf8_encode(buf, &sz, (dk4_c32_t)uc, &er)) {
if ((SIZE_MAX - sz) < back) {
dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW);
}
back += sz;
} else {
dk4error_set_elsize_nelem(&er, DK4_E_SYNTAX, 1, rdb);
}
}
if (SIZE_MAX == back) {
dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW);
}
back++;
if (DK4_E_NONE != er.ec) {
dk4error_copy(erp, &er);
back = 0;
}
} else {
dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
}
return back;
}
int
dk4recode_ascii_to_utf8(
char *dstb, size_t szdstb, const char *src, dk4_er_t *erp
)
{
unsigned char buf[8];
size_t sz;
size_t rdb = 0;
size_t used = 0;
int back = 0;
unsigned char uc = '\0';
#if DK4_USE_ASSERT
assert(NULL != dstb);
assert(0 < szdstb);
assert(NULL != src);
#endif
if ((NULL != dstb) && (NULL != src) && (0 < szdstb)) {
back = 1;
while(('\0' != *src) && (1 == back) && (used < szdstb)) {
uc = (unsigned char)(*(src++));
sz = sizeof(buf);
if (0 != dk4utf8_encode(buf, &sz, (dk4_c32_t)uc, erp)) {
if ((szdstb - used) > sz) {
DK4_MEMCPY(&(dstb[used]),buf,sz);
used += sz;
} else {
back = 0;
dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL);
}
} else {
back = 0;
dk4error_set_elsize_nelem(erp, DK4_E_SYNTAX, 1, rdb);
}
if (0 != back) { rdb++; }
}
if (used < szdstb) {
dstb[used] = '\0';
} else {
dstb[szdstb - 1] = '\0';
back = 0;
dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL);
}
} else {
dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
}
return back;
}
|