}
+static int Peek (stream_t *, const uint8_t **, unsigned int);
+
#define MIN_BLOCK (1 << 10)
#define MAX_BLOCK (1 << 20)
/**
block_t *peeked;
ssize_t length;
+ if (buf == NULL) /* caller skips data, get big enough peek buffer */
+ buflen = Peek (stream, &(const uint8_t *){ NULL }, buflen);
+
if ((peeked = p_sys->peeked) != NULL)
{ /* dequeue peeked data */
length = (buflen > peeked->i_buffer) ? peeked->i_buffer : buflen;
- memcpy (buf, peeked->p_buffer, length);
- buf = ((char *)buf) + length;
+ if (buf != NULL)
+ {
+ memcpy (buf, peeked->p_buffer, length);
+ buf = ((char *)buf) + length;
+ }
buflen -= length;
peeked->p_buffer += length;
peeked->i_buffer -= length;