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http chunked: avoid unsafe cases when chunks > 2GB.

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This and previous commit were inspired by Jonas' mail on elinks-dev.
This commit is contained in:
Witold Filipczyk 2007-06-09 17:26:15 +02:00 committed by Witold Filipczyk
parent eb1fe8ee5a
commit a4140594f1
1 changed files with 7 additions and 3 deletions
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10
src/protocol/http/http.c
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@ -1224,9 +1224,13 @@ read_chunked_http_data(struct connection *conn, struct read_buffer *rb)
if (zero) http->chunk_remaining = 0;
len = http->chunk_remaining;
/* Maybe everything necessary didn't come yet.. */
int_upper_bound(&len, rb->length);
conn->received += len;
if (http->chunk_remaining) {
/* Maybe everything necessary didn't come yet..
* This handle unlikely case when len < 0
* or http->chunk_remaining > 4GB and len == 0 */
int_bounds(&len, 1, rb->length);
conn->received += len;
}
data = decompress_data(conn, rb->data, len, &data_len);