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[iso] libcdio Joliet and UDF fixes

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* Fix for broken UDF access with MSVC on some images
  (eg. Arch Linux)
* Fix for broken Joliet access on ISO9660 images and
  proper Joliet support in iso.c
This commit is contained in:
Pete Batard 2012-02-16 20:44:16 +00:00
parent c79bfa0cb4
commit a851d66e7c
6 changed files with 202 additions and 102 deletions
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138
src/libcdio/driver/utf8.c
View file

@ -221,80 +221,110 @@ bool cdio_charset_to_utf8(char *src, size_t src_len, cdio_utf8_t **dst,
* Converts an UTF-16 string to UTF8 (allocate returned string)
* Returns NULL on error
*/
static __inline char* wchar_to_utf8(const wchar_t* wstr)
{
int size = 0;
char* str = NULL;
static inline char* wchar_to_utf8(const wchar_t* wstr)
{
int size = 0;
char* str = NULL;
/* Find out the size we need to allocate for our converted string */
size = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL);
if (size <= 1) // An empty string would be size 1
return NULL;
/* Find out the size we need to allocate for our converted string */
size = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL);
if (size <= 1) /* An empty string would be size 1 */
return NULL;
if ((str = (char*)calloc(size, 1)) == NULL)
return NULL;
if ((str = (char*)calloc(size, 1)) == NULL)
return NULL;
if (wchar_to_utf8_no_alloc(wstr, str, size) != size) {
free(str);
return NULL;
}
if (wchar_to_utf8_no_alloc(wstr, str, size) != size) {
free(str);
return NULL;
}
return str;
}
return str;
}
/*
* Converts an UTF8 string to UTF-16 (allocate returned string)
* Returns NULL on error
*/
static __inline wchar_t* utf8_to_wchar(const char* str)
{
int size = 0;
wchar_t* wstr = NULL;
static inline wchar_t* utf8_to_wchar(const char* str)
{
int size = 0;
wchar_t* wstr = NULL;
/* Find out the size we need to allocate for our converted string */
size = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0);
if (size <= 1) // An empty string would be size 1
return NULL;
/* Find out the size we need to allocate for our converted string */
size = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0);
if (size <= 1) /* An empty string would be size 1 */
return NULL;
if ((wstr = (wchar_t*)calloc(size, sizeof(wchar_t))) == NULL)
return NULL;
if ((wstr = (wchar_t*)calloc(size, sizeof(wchar_t))) == NULL)
return NULL;
if (utf8_to_wchar_no_alloc(str, wstr, size) != size) {
free(wstr);
return NULL;
}
return wstr;
}
if (utf8_to_wchar_no_alloc(str, wstr, size) != size) {
free(wstr);
return NULL;
}
return wstr;
}
bool cdio_charset_from_utf8(cdio_utf8_t * src, char ** dst,
int * dst_len, const char * dst_charset)
{
wchar_t* le_dst;
size_t i, len;
if (src == NULL || dst == NULL || dst_len == NULL || dst_charset == NULL || strcmp(dst_charset, "UTF-8") != 0)
return false;
/* Eliminate empty strings */
le_dst = utf8_to_wchar(src);
if ((le_dst == NULL) || (le_dst[0] == 0)) {
free(le_dst);
return false;
}
/* Perform byte reversal */
len = wcslen(le_dst);
*dst = (char*)calloc(len+1, sizeof(wchar_t));
for (i=0; i<2*len; i++) {
(*dst)[i] = ((char*)le_dst)[i+1];
(*dst)[i+1] = ((char*)le_dst)[i];
}
free(le_dst);
return true;
}
bool cdio_charset_to_utf8(char *src, size_t src_len, cdio_utf8_t **dst,
const char * src_charset)
{
wchar_t* le_src;
{
wchar_t* le_src;
int i;
if (src == NULL || dst == NULL || src_charset == NULL || strcmp(src_charset, "UCS-2BE") != 0)
return false;
if (src == NULL || dst == NULL || src_charset == NULL || strcmp(src_charset, "UCS-2BE") != 0)
return false;
if (src_len == (size_t)-1) {
for (src_len = 0; ((uint16_t*)src)[src_len] !=0; src_len++);
src_len <<=2;
}
if (src_len == (size_t)-1) {
for (src_len = 0; ((uint16_t*)src)[src_len] !=0; src_len++);
src_len <<=2;
}
/* zero lenght is a headache (LCMapString doesn't support it)
=> eliminate this case first */
if (src_len == 0) {
*dst = (cdio_utf8_t*)malloc(1);
*dst[0] = 0;
return true;
}
/* Eliminate empty strings */
if ((src_len < 2) || ((src[0] == 0) && (src[1] == 0))) {
*dst = NULL;
return false;
}
le_src = (wchar_t*)malloc(src_len+2);
/* WideCharToMultiByte only takes UCS-2LE, and we are fed UCS-2BE
=> perform byte reversal */
LCMapStringW(0, LCMAP_BYTEREV, (LPCWSTR)src, src_len, le_src, src_len);
*dst = wchar_to_utf8(le_src);
free(le_src);
/* Perform byte reversal */
le_src = (wchar_t*)malloc(src_len+2);
for (i=0; i<src_len; i+=2) {
((char*)le_src)[i] = src[i+1];
((char*)le_src)[i+1] = src[i];
}
le_src[src_len/2] = 0;
*dst = wchar_to_utf8(le_src);
free(le_src);
return (*dst != NULL);
return (*dst != NULL);
}
#endif /* HAVE_ICONV */