static int SkipEnd(stream_t *s, const rar_block_t *hdr)
{
if (!(hdr->flags & RAR_BLOCK_END_HAS_NEXT))
return VLC_EGENERIC;
if (SkipBlock(s, hdr))
return VLC_EGENERIC;
/* Now, we need to look for a marker block,
* It seems that there is garbage at EOF */
for (;;) {
const uint8_t *peek;
if (stream_Peek(s, &peek, rar_marker_size) < rar_marker_size)
return VLC_EGENERIC;
if (!memcmp(peek, rar_marker, rar_marker_size))
break;
if (stream_Read(s, NULL, 1) != 1)
return VLC_EGENERIC;
}
/* Skip marker and archive blocks */
if (IgnoreBlock(s, RAR_BLOCK_MARKER))
return VLC_EGENERIC;
if (IgnoreBlock(s, RAR_BLOCK_ARCHIVE))
return VLC_EGENERIC;
return VLC_SUCCESS;
}
static int SkipEnd(struct stream *s, const rar_block_t *hdr)
{
if (!(hdr->flags & RAR_BLOCK_END_HAS_NEXT))
return -1;
if (SkipBlock(s, hdr))
return -1;
/* Now, we need to look for a marker block,
* It seems that there is garbage at EOF */
for (;;) {
bstr peek = stream_peek(s, rar_marker_size);
if (peek.len < rar_marker_size)
return -1;
if (!memcmp(peek.start, rar_marker, rar_marker_size))
break;
if (!stream_skip(s, 1))
return -1;
}
/* Skip marker and archive blocks */
if (IgnoreBlock(s, RAR_BLOCK_MARKER))
return -1;
if (IgnoreBlock(s, RAR_BLOCK_ARCHIVE))
return -1;
return 0;
}
int RarParse(stream_t *s, int *count, rar_file_t ***file)
{
*count = 0;
*file = NULL;
/* Skip marker */
if (IgnoreBlock(s, RAR_BLOCK_MARKER))
return VLC_EGENERIC;
/* Skip archive */
if (IgnoreBlock(s, RAR_BLOCK_ARCHIVE))
return VLC_EGENERIC;
/* */
for (;;) {
rar_block_t bk;
int ret;
if (PeekBlock(s, &bk))
break;
switch(bk.type) {
case RAR_BLOCK_END:
ret = SkipEnd(s, &bk);
break;
case RAR_BLOCK_FILE:
ret = SkipFile(s, count, file, &bk);
break;
default:
ret = SkipBlock(s, &bk);
break;
}
if (ret)
break;
}
return VLC_SUCCESS;
}
int RarParse(stream_t *s, int *count, rar_file_t ***file)
{
*count = 0;
*file = NULL;
const rar_pattern_t *pattern = FindVolumePattern(s->psz_path);
int volume_offset = 0;
char *volume_mrl;
if (asprintf(&volume_mrl, "%s://%s",
s->psz_access, s->psz_path) < 0)
return VLC_EGENERIC;
stream_t *vol = s;
for (;;) {
/* Skip marker & archive */
if (IgnoreBlock(vol, RAR_BLOCK_MARKER) ||
IgnoreBlock(vol, RAR_BLOCK_ARCHIVE)) {
if (vol != s)
stream_Delete(vol);
free(volume_mrl);
return VLC_EGENERIC;
}
/* */
bool has_next = false;
for (;;) {
rar_block_t bk;
int ret;
if (PeekBlock(vol, &bk))
break;
switch(bk.type) {
case RAR_BLOCK_END:
ret = SkipEnd(vol, &bk);
has_next = ret && (bk.flags & RAR_BLOCK_END_HAS_NEXT);
break;
case RAR_BLOCK_FILE:
ret = SkipFile(vol, count, file, &bk, volume_mrl);
break;
default:
ret = SkipBlock(vol, &bk);
break;
}
if (ret)
break;
}
if (vol != s)
stream_Delete(vol);
if (!has_next || !pattern ||
(*count > 0 && !(*file)[*count -1]->is_complete)) {
free(volume_mrl);
return VLC_SUCCESS;
}
/* Open next volume */
const int volume_index = pattern->start + volume_offset++;
if (volume_index > pattern->stop) {
free(volume_mrl);
return VLC_SUCCESS;
}
char *volume_base;
if (asprintf(&volume_base, "%s://%.*s",
s->psz_access,
(int)(strlen(s->psz_path) - strlen(pattern->match)), s->psz_path) < 0) {
free(volume_mrl);
return VLC_SUCCESS;
}
free(volume_mrl);
if (asprintf(&volume_mrl, pattern->format, volume_base, volume_index) < 0)
volume_mrl = NULL;
free(volume_base);
if (!volume_mrl)
return VLC_SUCCESS;
vol = stream_UrlNew(s, volume_mrl);
if (!vol) {
free(volume_mrl);
return VLC_SUCCESS;
}
}
}
int RarParse(struct stream *s, int *count, rar_file_t ***file)
{
*count = 0;
*file = NULL;
const rar_pattern_t *pattern = FindVolumePattern(s->url);
int volume_offset = 0;
char *volume_mrl;
if (asprintf(&volume_mrl, "%s", s->url) < 0)
return -1;
struct stream *vol = s;
for (;;) {
/* Skip marker & archive */
if (IgnoreBlock(vol, RAR_BLOCK_MARKER) ||
IgnoreBlock(vol, RAR_BLOCK_ARCHIVE)) {
if (vol != s)
free_stream(vol);
free(volume_mrl);
return -1;
}
/* */
int has_next = -1;
for (;;) {
rar_block_t bk;
int ret;
if (PeekBlock(vol, &bk))
break;
switch(bk.type) {
case RAR_BLOCK_END:
ret = SkipEnd(vol, &bk);
has_next = ret && (bk.flags & RAR_BLOCK_END_HAS_NEXT);
break;
case RAR_BLOCK_FILE:
ret = SkipFile(vol, count, file, &bk, volume_mrl);
break;
default:
ret = SkipBlock(vol, &bk);
break;
}
if (ret)
break;
}
if (has_next < 0 && *count > 0 && !(*file)[*count -1]->is_complete)
has_next = 1;
if (vol != s)
free_stream(vol);
if (!has_next || !pattern)
goto done;
/* Open next volume */
const int volume_index = pattern->start + volume_offset++;
if (volume_index > pattern->stop)
goto done;
char *volume_base;
if (asprintf(&volume_base, "%.*s",
(int)(strlen(s->url) - strlen(pattern->match)), s->url) < 0) {
goto done;
}
free(volume_mrl);
if (pattern->start) {
if (asprintf(&volume_mrl, pattern->format, volume_base, volume_index) < 0)
volume_mrl = NULL;
} else {
if (asprintf(&volume_mrl, pattern->format, volume_base,
'r' + volume_index / 100, volume_index % 100) < 0)
volume_mrl = NULL;
}
free(volume_base);
if (!volume_mrl)
goto done;
vol = stream_create(volume_mrl, STREAM_READ | STREAM_NO_FILTERS,
s->cancel, s->global);
if (!vol)
goto done;
}
done:
free(volume_mrl);
if (*count == 0) {
talloc_free(*file);
return -1;
}
return 0;
}
int RarParse(stream_t *s, int *count, rar_file_t ***file, unsigned int *pi_nbvols,
bool b_extonly)
{
*count = 0;
*file = NULL;
*pi_nbvols = 1;
if( s->psz_url == NULL )
return VLC_EGENERIC;
const rar_pattern_t *pattern = FindVolumePattern(s->psz_url, b_extonly);
int volume_offset = 0;
char *volume_mrl = strdup(s->psz_url);
if (volume_mrl == NULL)
return VLC_ENOMEM;
stream_t *vol = s;
for (;;) {
/* Skip marker & archive */
if (IgnoreBlock(vol, RAR_BLOCK_MARKER) ||
IgnoreBlock(vol, RAR_BLOCK_ARCHIVE)) {
if (vol != s)
stream_Delete(vol);
free(volume_mrl);
return VLC_EGENERIC;
}
/* */
int has_next = -1;
for (;;) {
rar_block_t bk;
int ret;
if (PeekBlock(vol, &bk))
break;
switch(bk.type) {
case RAR_BLOCK_END:
ret = SkipEnd(vol, &bk);
has_next = ret && (bk.flags & RAR_BLOCK_END_HAS_NEXT);
break;
case RAR_BLOCK_FILE:
ret = SkipFile(vol, count, file, &bk, volume_mrl);
break;
default:
ret = SkipBlock(vol, &bk);
break;
}
if (ret)
break;
}
if (has_next < 0 && *count > 0 && !(*file)[*count -1]->is_complete)
has_next = 1;
if (vol != s)
stream_Delete(vol);
free(volume_mrl);
if (!has_next || !pattern)
return VLC_SUCCESS;
/* Open next volume */
const int volume_index = pattern->start + volume_offset++;
if (volume_index > pattern->stop)
return VLC_SUCCESS;
char *volume_base = strndup(s->psz_url,
strlen(s->psz_url) - strlen(pattern->match));
if (volume_base == NULL)
return VLC_SUCCESS;
if (pattern->start) {
if (asprintf(&volume_mrl, pattern->format, volume_base, volume_index) < 0)
volume_mrl = NULL;
} else {
if (asprintf(&volume_mrl, pattern->format, volume_base,
'r' + volume_index / 100, volume_index % 100) < 0)
volume_mrl = NULL;
}
free(volume_base);
if (!volume_mrl)
return VLC_SUCCESS;
const int s_flags = s->i_flags;
s->i_flags |= OBJECT_FLAGS_NOINTERACT;
vol = stream_UrlNew(s, volume_mrl);
s->i_flags = s_flags;
if (!vol) {
free(volume_mrl);
return VLC_SUCCESS;
}
(*pi_nbvols)++;
}
}