#include "error.h"
#include "afh.h"
#include "portable_io.h"
-#include "mdct.h"
+#include "imdct.h"
#include "wma.h"
const char *search_pattern(const char *pattern, int pattern_len, const char *buf, int buf_size)
{
const char *p, *end = buf + buf_size;
- if (pattern_len > buf_size)
- return NULL;
for (p = buf; p + pattern_len < end; p++) {
if (memcmp(p, pattern, pattern_len))
continue;
{
uint16_t header_len;
+ if (len < 18)
+ return 0;
header_len = read_u16(buf + 16) + 46;
- if (header_len > len)
- return -E_WMA_BAD_ASF_HEADER;
PARA_DEBUG_LOG("header_len: %d\n", header_len);
return header_len;
}
+/**
+ * \return Negative on errors, zero if more data is needed in order to read the
+ * full header. Positive header length on success.
+ */
int read_asf_header(char *buf, int loaded, struct asf_header_info *ahi)
{
int ret;
char *start;
- ret = read_header_len(buf, loaded);
- if (ret < 0)
- return ret;
- ahi->header_len = ret;
-
+ ahi->header_len = read_header_len(buf, loaded);
+ if (ahi->header_len == 0) /* too short to read header len */
+ return 0;
+ if (ahi->header_len > loaded) /* too short to read header */
+ return 0;
ret = find_audio_stream_info(buf, ahi->header_len);
if (ret < 0)
return ret;
+ /* FIXME: Check ranges */
ahi->audio_stream_info_start = ret + 16;
start = buf + ahi->audio_stream_info_start;
ahi->flags2 = read_u16(start + 60);
PARA_INFO_LOG("read_asf_header: flags1: %d, flag2: %d\n",
ahi->flags1, ahi->flags2);
- return 42;
+ return 1;
}
const uint8_t log2_tab[256] = {