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| author |   deraadt <deraadt@openbsd.org> | 1996-08-07 18:01:05 +0000 |
|---|---|---|
| committer | deraadt <deraadt@openbsd.org> | 1996-08-07 18:01:05 +0000 |
| commit | 4c98b4486da187eedc29f7ec5e3881de8e6f6473 (patch) | |
| tree | 3b95da75b1b4a4cdc59afd20d315a7a2449c90b1 | |
| parent | People can be 'logged in' from non-existant devices. (diff) | |
| download | wireguard-openbsd-4c98b4486da187eedc29f7ec5e3881de8e6f6473.tar.xz wireguard-openbsd-4c98b4486da187eedc29f7ec5e3881de8e6f6473.zip | |
seed rresvport() for aux channel with a known taken port; do not ask for
next lower port because we might get it (and be predictable!)
| -rw-r--r-- | lib/libc/net/rcmd.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/libc/net/rcmd.c b/lib/libc/net/rcmd.c index 86f35664e47..727a26e1732 100644 --- a/lib/libc/net/rcmd.c +++ b/lib/libc/net/rcmd.c @@ -133,7 +133,13 @@ rcmd(ahost, rport, locuser, remuser, cmd, fd2p) sigsetmask(oldmask); return (-1); } +#if 0 + /* + * try to rresvport() to the same port. This will make rresvport() + * fail it's first bind, resulting in it choosing a random port. + */ lport--; +#endif if (fd2p == 0) { write(s, "", 1); lport = 0; |