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
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
/* the Music Player Daemon (MPD)
* (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu)
* This project's homepage is: http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "charConv.h"
#include "mpd_types.h"
#include "utf8.h"
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#ifdef HAVE_ICONV
#include <iconv.h>
iconv_t char_conv_iconv;
#endif
char * char_conv_to = NULL;
char * char_conv_from = NULL;
mpd_sint8 char_conv_same = 0;
mpd_sint8 char_conv_use_iconv = 0;
/* 1 is to use latin1ToUtf8
0 is not to use latin1/utf8 converter
-1 is to use utf8ToLatin1*/
mpd_sint8 char_conv_latin1ToUtf8 = 0;
#define BUFFER_SIZE 1024
int setCharSetConversion(char * to, char * from) {
if(char_conv_to && strcmp(to,char_conv_to)==0 &&
char_conv_from && strcmp(from,char_conv_from)==0)
{
return 0;
}
closeCharSetConversion();
if(0==strcmp(to,from)) {
char_conv_same = 1;
char_conv_to = strdup(to);
char_conv_from = strdup(from);
return 0;
}
if(strcmp(to,"UTF-8")==0 && strcmp(from,"ISO-8859-1")==0) {
char_conv_latin1ToUtf8 = 1;
}
else if(strcmp(to,"ISO-8859-1")==0 && strcmp(from,"UTF-8")==0) {
char_conv_latin1ToUtf8 = -1;
}
if(char_conv_latin1ToUtf8!=0) {
char_conv_to = strdup(to);
char_conv_from = strdup(from);
return 0;
}
#ifdef HAVE_ICONV
if((char_conv_iconv = iconv_open(to,from))==(iconv_t)(-1)) return -1;
char_conv_to = strdup(to);
char_conv_from = strdup(from);
char_conv_use_iconv = 1;
return 0;
#endif
return -1;
}
char * convStrDup(char * string) {
if(!char_conv_to) return NULL;
if(char_conv_same) return strdup(string);
#ifdef HAVE_ICONV
if(char_conv_use_iconv) {
char buffer[BUFFER_SIZE];
size_t inleft = strlen(string);
char * ret;
size_t outleft;
size_t retlen = 0;
size_t err;
char * bufferPtr;
ret = malloc(1);
ret[0] = '\0';
while(inleft) {
bufferPtr = buffer;
outleft = BUFFER_SIZE;
err = iconv(char_conv_iconv,&string,&inleft,&bufferPtr,
&outleft);
if(outleft==BUFFER_SIZE || (err<0 && errno!=E2BIG)) {
free(ret);
return NULL;
}
ret = realloc(ret,retlen+BUFFER_SIZE-outleft+1);
memcpy(ret+retlen,buffer,BUFFER_SIZE-outleft);
retlen+=BUFFER_SIZE-outleft;
ret[retlen] = '\0';
}
return ret;
}
#endif
switch(char_conv_latin1ToUtf8) {
case 1:
return latin1StrToUtf8Dup(string);
break;
case -1:
return utf8StrToLatin1Dup(string);
break;
}
return NULL;
}
void closeCharSetConversion() {
if(char_conv_to) {
#ifdef HAVE_ICONV
if(char_conv_use_iconv) iconv_close(char_conv_iconv);
#endif
free(char_conv_to);
free(char_conv_from);
char_conv_to = NULL;
char_conv_from = NULL;
char_conv_same = 0;
char_conv_latin1ToUtf8 = 0;
char_conv_use_iconv = 0;
}
}
/* vim:set shiftwidth=4 tabstop=8 expandtab: */
|
