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
|
/*****************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* $Id$
*/
/*
This is a simple example showing how a program on a non-ASCII platform
would invoke callbacks to do its own codeset conversions instead of
using the built-in iconv functions in libcurl.
The IBM-1047 EBCDIC codeset is used for this example but the code
would be similar for other non-ASCII codesets.
Three callback functions are created below:
my_conv_from_ascii_to_ebcdic,
my_conv_from_ebcdic_to_ascii, and
my_conv_from_utf8_to_ebcdic
The "platform_xxx" calls represent platform-specific conversion routines.
*/
#include <stdio.h>
#include <curl/curl.h>
CURLcode my_conv_from_ascii_to_ebcdic(char *buffer, size_t length)
{
char *tempptrin, *tempptrout;
size_t bytes = length;
int rc;
tempptrin = tempptrout = buffer;
rc = platform_a2e(&tempptrin, &bytes, &tempptrout, &bytes);
if (rc == PLATFORM_CONV_OK) {
return(CURLE_OK);
} else {
return(CURLE_CONV_FAILED);
}
}
CURLcode my_conv_from_ebcdic_to_ascii(char *buffer, size_t length)
{
char *tempptrin, *tempptrout;
size_t bytes = length;
int rc;
tempptrin = tempptrout = buffer;
rc = platform_e2a(&tempptrin, &bytes, &tempptrout, &bytes);
if (rc == PLATFORM_CONV_OK) {
return(CURLE_OK);
} else {
return(CURLE_CONV_FAILED);
}
}
CURLcode my_conv_from_utf8_to_ebcdic(char *buffer, size_t length)
{
char *tempptrin, *tempptrout;
size_t bytes = length;
int rc;
tempptrin = tempptrout = buffer;
rc = platform_u2e(&tempptrin, &bytes, &tempptrout, &bytes);
if (rc == PLATFORM_CONV_OK) {
return(CURLE_OK);
} else {
return(CURLE_CONV_FAILED);
}
}
int main(void)
{
CURL *curl;
CURLcode res;
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "curl.haxx.se");
/* use platform-specific functions for codeset conversions */
curl_easy_setopt(curl, CURLOPT_CONV_FROM_NETWORK_FUNCTION,
my_conv_from_ascii_to_ebcdic);
curl_easy_setopt(curl, CURLOPT_CONV_TO_NETWORK_FUNCTION,
my_conv_from_ebcdic_to_ascii);
curl_easy_setopt(curl, CURLOPT_CONV_FROM_UTF8_FUNCTION,
my_conv_from_utf8_to_ebcdic);
res = curl_easy_perform(curl);
/* always cleanup */
curl_easy_cleanup(curl);
}
return 0;
}
|
