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The cmsg_len field includes the cmsg header. So use CMSG_LEN().

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MFC after: 3 days
This commit is contained in:
Michael Tuexen 2012-06-05 20:48:13 +00:00
parent 7642883f10
commit 30852968ef
1 changed files with 4 additions and 4 deletions
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8
share/man/man4/ip.4
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@ -165,7 +165,7 @@ The
.Vt cmsghdr
fields have the following values:
.Bd -literal
cmsg_len = sizeof(struct in_addr)
cmsg_len = CMSG_LEN(sizeof(struct in_addr))
cmsg_level = IPPROTO_IP
cmsg_type = IP_RECVDSTADDR
.Ed
@ -184,7 +184,7 @@ structure followed by the
address.
The cmsghdr fields should have the following values:
.Bd -literal
cmsg_len = sizeof(struct in_addr)
cmsg_len = CMSG_LEN(sizeof(struct in_addr))
cmsg_level = IPPROTO_IP
cmsg_type = IP_SENDSRCADDR
.Ed
@ -279,7 +279,7 @@ that contains a cmsghdr structure followed by the
.Tn TTL .
The cmsghdr fields have the following values:
.Bd -literal
cmsg_len = sizeof(u_char)
cmsg_len = CMSG_LEN(sizeof(u_char))
cmsg_level = IPPROTO_IP
cmsg_type = IP_RECVTTL
.Ed
@ -307,7 +307,7 @@ The
.Vt cmsghdr
fields have the following values:
.Bd -literal
cmsg_len = sizeof(struct sockaddr_dl)
cmsg_len = CMSG_LEN(sizeof(struct sockaddr_dl))
cmsg_level = IPPROTO_IP
cmsg_type = IP_RECVIF
.Ed