diff options
Diffstat (limited to 'crypto/openssh/misc.c')
| -rw-r--r-- | crypto/openssh/misc.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/crypto/openssh/misc.c b/crypto/openssh/misc.c index 919b04e..1fc3ae7 100644 --- a/crypto/openssh/misc.c +++ b/crypto/openssh/misc.c @@ -1,4 +1,5 @@ /* $OpenBSD: misc.c,v 1.84 2010/11/21 01:01:13 djm Exp $ */ +/* $FreeBSD$ */ /* * Copyright (c) 2000 Markus Friedl. All rights reserved. * Copyright (c) 2005,2006 Damien Miller. All rights reserved. @@ -996,3 +997,34 @@ sock_set_v6only(int s) error("setsockopt IPV6_V6ONLY: %s", strerror(errno)); #endif } + +void +sock_get_rcvbuf(int *size, int rcvbuf) +{ + int sock, socksize; + socklen_t socksizelen = sizeof(socksize); + + /* + * Create a socket but do not connect it. We use it + * only to get the rcv socket size. + */ + sock = socket(AF_INET6, SOCK_STREAM, 0); + if (sock < 0) + sock = socket(AF_INET, SOCK_STREAM, 0); + if (sock < 0) + return; + + /* + * If the tcp_rcv_buf option is set and passed in, attempt to set the + * buffer size to its value. + */ + if (rcvbuf) + setsockopt(sock, SOL_SOCKET, SO_RCVBUF, (void *)&rcvbuf, + sizeof(rcvbuf)); + + if (getsockopt(sock, SOL_SOCKET, SO_RCVBUF, + &socksize, &socksizelen) == 0) + if (size != NULL) + *size = socksize; + close(sock); +} |
