External/passt
1
0
Fork 0
mirror of https://passt.top/passt synced 2024-07-02 07:52:41 +00:00
Code Issues Packages Projects Releases Wiki Activity

cppcheck: Suppress NULL pointer warning in tcp_sock_consume()

Browse Source 
Recent versions of cppcheck give a warning due to the NULL buffer passed
to recv() in tcp_sock_consume().  Since this apparently works, I assume
it's actually valid, but cppcheck doesn't know that recv() can take a NULL
buffer.  So, use a suppression to get rid of the error.

Also add an unmatchedSuppression suppression since only some cppcheck
versions complain about this.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
David Gibson 2022-09-28 14:33:32 +10:00 committed by Stefano Brivio
parent 8f6be016ae
commit 1ae95f33cc
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
tcp.c
View File

@ -2280,6 +2280,7 @@ static int tcp_sock_consume(struct tcp_conn *conn, uint32_t ack_seq)
if (SEQ_LE(ack_seq, conn->seq_ack_from_tap))
return 0;
/* cppcheck-suppress [nullPointer, unmatchedSuppression] */
if (recv(conn->sock, NULL, ack_seq - conn->seq_ack_from_tap,
MSG_DONTWAIT | MSG_TRUNC) < 0)
return -errno;