diff options
Diffstat (limited to 'man3/cmsg.3')
| -rw-r--r-- | man3/cmsg.3 | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/man3/cmsg.3 b/man3/cmsg.3 index 43fd7c176..628af9318 100644 --- a/man3/cmsg.3 +++ b/man3/cmsg.3 @@ -31,9 +31,9 @@ credentials. For instance, control messages can be used to send additional header fields such as IP options. Ancillary data is sent by calling -.BR sendmsg (2) +.MR sendmsg 2 and received by calling -.BR recvmsg (2). +.MR recvmsg 2 . See their manual pages for more information. .P Ancillary data is a sequence of @@ -43,7 +43,7 @@ See the specific protocol man pages for the available control message types. The maximum ancillary buffer size allowed per socket can be set using .IR /proc/sys/net/core/optmem_max ; see -.BR socket (7). +.MR socket 7 . .P The .I cmsghdr @@ -87,7 +87,7 @@ It returns NULL when there isn't enough space left in the buffer. When initializing a buffer that will contain a series of .I cmsghdr structures (e.g., to be sent with -.BR sendmsg (2)), +.MR sendmsg 2 ), that buffer should first be zero-initialized to ensure the correct operation of .BR CMSG_NXTHDR (). @@ -109,7 +109,7 @@ The pointer returned cannot be assumed to be suitably aligned for accessing arbitrary payload data types. Applications should not cast it to a pointer type matching the payload, but should instead use -.BR memcpy (3) +.MR memcpy 3 to copy data to or from a suitably declared object. .TP .BR CMSG_LEN () @@ -154,7 +154,7 @@ all control messages in the buffer. For more information on the .IR msghdr , see -.BR recvmsg (2). +.MR recvmsg 2 . .SH VERSIONS For portability, ancillary data should be accessed using only the macros described here. @@ -253,9 +253,9 @@ memcpy(CMSG_DATA(cmsg), myfds, sizeof(myfds)); .P For a complete code example that shows passing of file descriptors over a UNIX domain socket, see -.BR seccomp_unotify (2). +.MR seccomp_unotify 2 . .SH SEE ALSO -.BR recvmsg (2), -.BR sendmsg (2) +.MR recvmsg 2 , +.MR sendmsg 2 .P RFC\ 2292 |