int
xdg_mime_mime_type_equal (const char *mime_a,
const char *mime_b)
{
xdg_mime_init ();
return _xdg_mime_mime_type_equal (mime_a, mime_b);
}
const char *
_xdg_mime_magic_lookup_data (XdgMimeMagic *mime_magic,
const void *data,
size_t len,
int *result_prio,
const char *mime_types[],
int n_mime_types)
{
XdgMimeMagicMatch *match;
const char *mime_type;
int n;
int prio;
prio = 0;
mime_type = NULL;
for (match = mime_magic->match_list; match; match = match->next)
{
if (_xdg_mime_magic_match_compare_to_data (match, data, len))
{
prio = match->priority;
mime_type = match->mime_type;
break;
}
else
{
for (n = 0; n < n_mime_types; n++)
{
if (mime_types[n] &&
_xdg_mime_mime_type_equal (mime_types[n], match->mime_type))
mime_types[n] = NULL;
}
}
}
if (mime_type == NULL)
{
for (n = 0; n < n_mime_types; n++)
{
if (mime_types[n])
mime_type = mime_types[n];
}
}
if (result_prio)
*result_prio = prio;
return mime_type;
}
static const char *
cache_magic_lookup_data (XdgMimeCache *cache,
const void *data,
size_t len,
int *prio,
const char *mime_types[],
int n_mime_types)
{
xdg_uint32_t list_offset;
xdg_uint32_t n_entries;
xdg_uint32_t offset;
int j, n;
*prio = 0;
list_offset = GET_UINT32 (cache->buffer, 24);
n_entries = GET_UINT32 (cache->buffer, list_offset);
offset = GET_UINT32 (cache->buffer, list_offset + 8);
for (j = 0; j < n_entries; j++)
{
const char *match;
match = cache_magic_compare_to_data (cache, offset + 16 * j,
data, len, prio);
if (match)
return match;
else
{
xdg_uint32_t mimetype_offset;
const char *non_match;
mimetype_offset = GET_UINT32 (cache->buffer, offset + 16 * j + 4);
non_match = cache->buffer + mimetype_offset;
for (n = 0; n < n_mime_types; n++)
{
if (mime_types[n] &&
_xdg_mime_mime_type_equal (mime_types[n], non_match))
mime_types[n] = NULL;
}
}
}
return NULL;
}
const char *
_xdg_mime_magic_lookup_data (XdgMimeMagic *mime_magic,
const void *data,
size_t len,
const char *mime_types[],
int n_mime_types)
{
XdgMimeMagicMatch *match;
const char *mime_type;
int n;
mime_type = NULL;
for (match = mime_magic->match_list; match; match = match->next)
{
if (_xdg_mime_magic_match_compare_to_data (match, data, len))
{
if ((mime_type == NULL) || (_xdg_mime_mime_type_subclass (match->mime_type, mime_type))) {
mime_type = match->mime_type;
}
}
else
{
for (n = 0; n < n_mime_types; n++)
{
if (mime_types[n] &&
_xdg_mime_mime_type_equal (mime_types[n], match->mime_type))
mime_types[n] = NULL;
}
}
}
if (mime_type == NULL)
{
for (n = 0; n < n_mime_types; n++)
{
if (mime_types[n])
mime_type = mime_types[n];
}
}
return mime_type;
}
const char *
_xdg_mime_magic_lookup_data (XdgMimeMagic *mime_magic,
const void *data,
size_t len,
const char *mime_types[],
int n_mime_types)
{
XdgMimeMagicMatch *match;
const char *mime_type;
int n;
int priority;
int had_match;
mime_type = NULL;
priority = 0;
had_match = 0;
for (match = mime_magic->match_list; match; match = match->next)
{
if (_xdg_mime_magic_match_compare_to_data (match, data, len))
{
if (!had_match || match->priority > priority ||
(mime_type != NULL && _xdg_mime_mime_type_subclass (match->mime_type, mime_type)))
{
mime_type = match->mime_type;
priority = match->priority;
}
/* Is this another match at same priority which is not the same
* type again, or a sub-type */
else if (had_match && match->priority == priority && mime_type &&
strcmp(mime_type, match->mime_type)!=0 &&
!_xdg_mime_mime_type_subclass (mime_type, match->mime_type))
/* multiple unrelated patterns with the same priority matched,
* so we can't tell what type this is. */
mime_type = NULL;
had_match = 1;
}
else
{
for (n = 0; n < n_mime_types; n++)
{
if (mime_types[n] &&
_xdg_mime_mime_type_equal (mime_types[n], match->mime_type))
mime_types[n] = NULL;
}
}
}
if (mime_type == NULL)
{
for (n = 0; n < n_mime_types; n++)
{
if (mime_types[n])
mime_type = mime_types[n];
}
}
if (mime_type == NULL)
{
if(_rox_buffer_looks_like_text(data, len))
mime_type = XDG_MIME_TYPE_UNKNOWN_TEXT;
}
return mime_type;
}
