Re: [PATCH] ipv6.7: add description of getsockopt for IPV6_MTU
From: Michael Kerrisk (man-pages) <hidden>
Date: 2012-12-15 18:56:52
Hello Gao Feng, On Mon, Dec 10, 2012 at 7:02 AM, Gao feng [off-list ref] wrote:
In ipv4,IP_MTU is only supported by getsockopt. In ipv6,we can use IPV6_MTU to set socket's mtu, but the return value of getsockopt is the path mtu. it may make people confusion. Add the description of the getsockopt for IPV6_MTU to tell people the mtu of getting and setting is different.
Thank you. I've applied this patch. Cheers, Michael
quoted hunk
Signed-off-by: Gao feng <redacted> --- man7/ipv6.7 | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-)diff --git a/man7/ipv6.7 b/man7/ipv6.7 index e13597c..888c6fa 100644 --- a/man7/ipv6.7 +++ b/man7/ipv6.7@@ -147,6 +147,10 @@ structure. .\" should be documented .TP .B IPV6_MTU +Retrieve the current known path MTU of the current socket. +Only valid when the socket has been connected. +Returns an integer. + Set the MTU to be used for the socket. The MTU is limited by the device MTU or the path MTU when path MTU discovery is enabled. --1.7.7.6
-- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Author of "The Linux Programming Interface"; http://man7.org/tlpi/ -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html