1 #include <stdlib.h>
2 #include <stdio.h>
3 #include <wchar.h>
4 #include <windows.h>
5 #include <winnls.h>
6
__mingw_str_wide_utf8(const wchar_t * const wptr,char ** mbptr,size_t * buflen)7 int __cdecl __mingw_str_wide_utf8(const wchar_t * const wptr, char **mbptr, size_t *buflen)
8 {
9 size_t len;
10 char *buf;
11 int ret = 0;
12
13 len = WideCharToMultiByte(CP_UTF8, 0, wptr, -1, NULL, 0, NULL, NULL); /* Get utf-8 string length */
14 buf = calloc(len + 1, sizeof (char)); /* Can we assume sizeof char always = 1? */
15
16 if(!buf) len = 0;
17 else {
18 if (len != 0) ret = WideCharToMultiByte(CP_UTF8, 0, wptr, -1, buf, len, NULL, NULL); /*Do actual conversion*/
19 buf[len] = '0'; /* Must terminate */
20 }
21 *mbptr = buf; /* Set string pointer to allocated buffer */
22 if(buflen != NULL) *buflen = (len) * sizeof (char); /* Give length of allocated memory if needed. */
23 return ret;
24 }
25
__mingw_str_utf8_wide(const char * const mbptr,wchar_t ** wptr,size_t * buflen)26 int __cdecl __mingw_str_utf8_wide(const char *const mbptr, wchar_t **wptr, size_t *buflen)
27 {
28 size_t len;
29 wchar_t *buf;
30 int ret = 0;
31
32 len = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, mbptr, -1, NULL, 0); /* Get converted size */
33 buf = calloc(len + 1, sizeof (wchar_t)); /* Allocate memory accordingly */
34
35 if(!buf) len = 0;
36 else {
37 if (len != 0) ret = MultiByteToWideChar (CP_UTF8, MB_ERR_INVALID_CHARS, mbptr, -1, buf, len); /* Do conversion */
38 buf[len] = L'0'; /* Must terminate */
39 }
40 *wptr = buf; /* Set string pointer to allocated buffer */
41 if (buflen != NULL) *buflen = len * sizeof (wchar_t); /* Give length of allocated memory if needed. */
42 return ret; /* Number of characters written */
43 }
44
__mingw_str_free(void * ptr)45 void __cdecl __mingw_str_free(void *ptr)
46 {
47 if (ptr) free(ptr);
48 }
49