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-rw-r--r--net/wget.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/net/wget.c b/net/wget.c
index 817c5ebd5d..71bac92d84 100644
--- a/net/wget.c
+++ b/net/wget.c
@@ -50,6 +50,7 @@ static unsigned long content_length;
static unsigned int packets;
static unsigned int initial_data_seq_num;
+static unsigned int next_data_seq_num;
static enum wget_state current_wget_state;
@@ -272,17 +273,18 @@ static void wget_connected(uchar *pkt, unsigned int tcp_seq_num,
current_wget_state = WGET_TRANSFERRING;
+ initial_data_seq_num = tcp_seq_num + hlen;
+ next_data_seq_num = tcp_seq_num + len;
+
if (strstr((char *)pkt, http_ok) == 0) {
debug_cond(DEBUG_WGET,
"wget: Connected Bad Xfer\n");
- initial_data_seq_num = tcp_seq_num + hlen;
wget_loop_state = NETLOOP_FAIL;
wget_send(action, tcp_seq_num, tcp_ack_num, len);
} else {
debug_cond(DEBUG_WGET,
"wget: Connctd pkt %p hlen %x\n",
pkt, hlen);
- initial_data_seq_num = tcp_seq_num + hlen;
pos = strstr((char *)pkt, content_len);
if (!pos) {
@@ -396,6 +398,12 @@ static void wget_handler(uchar *pkt, u16 dport,
"wget: Transferring, seq=%x, ack=%x,len=%x\n",
tcp_seq_num, tcp_ack_num, len);
+ if (next_data_seq_num != tcp_seq_num) {
+ debug_cond(DEBUG_WGET, "wget: seq=%x packet was lost\n", next_data_seq_num);
+ return;
+ }
+ next_data_seq_num = tcp_seq_num + len;
+
if (tcp_seq_num >= initial_data_seq_num &&
store_block(pkt, tcp_seq_num - initial_data_seq_num,
len) != 0) {