diff options
| author | Alexander Bluhm <bluhm@cvs.openbsd.org> | 2017-10-24 17:49:36 +0000 |
|---|---|---|
| committer | Alexander Bluhm <bluhm@cvs.openbsd.org> | 2017-10-24 17:49:36 +0000 |
| commit | 2d105063164eccaa16f08eb686acf0152ec3f710 (patch) | |
| tree | 65d524e80677316475efa91527122ad3bf3e9efc /usr.bin/nc/netcat.c | |
| parent | f2f07b61011a2bc77e821efe33cace7e4532dde5 (diff) | |
Use a smaller buffer size too peek the receive data. The content
is discarded anyway, the plen variable is a leftover from the -j
jumbo option.
reported by Nan Xiao; OK deraadt@
Diffstat (limited to 'usr.bin/nc/netcat.c')
| -rw-r--r-- | usr.bin/nc/netcat.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/usr.bin/nc/netcat.c b/usr.bin/nc/netcat.c index ce55972a7c2..f8bd8fa4988 100644 --- a/usr.bin/nc/netcat.c +++ b/usr.bin/nc/netcat.c @@ -1,4 +1,4 @@ -/* $OpenBSD: netcat.c,v 1.187 2017/07/15 17:27:39 jsing Exp $ */ +/* $OpenBSD: netcat.c,v 1.188 2017/10/24 17:49:35 bluhm Exp $ */ /* * Copyright (c) 2001 Eric Jackson <ericj@monkey.org> * Copyright (c) 2015 Bob Beck. All rights reserved. @@ -563,13 +563,12 @@ main(int argc, char *argv[]) * initially to wait for a caller, then use * the regular functions to talk to the caller. */ - int rv, plen; - char buf[16384]; + int rv; + char buf[2048]; struct sockaddr_storage z; len = sizeof(z); - plen = 2048; - rv = recvfrom(s, buf, plen, MSG_PEEK, + rv = recvfrom(s, buf, sizeof(buf), MSG_PEEK, (struct sockaddr *)&z, &len); if (rv < 0) err(1, "recvfrom"); |