diff options
Diffstat (limited to 'lib/libc/sys/getsockname.2')
| -rw-r--r-- | lib/libc/sys/getsockname.2 | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/lib/libc/sys/getsockname.2 b/lib/libc/sys/getsockname.2 index d56e404..bbd9f93 100644 --- a/lib/libc/sys/getsockname.2 +++ b/lib/libc/sys/getsockname.2 @@ -38,6 +38,8 @@ .Nm getsockname .Nd get socket name .Sh SYNOPSIS +.Fd #include <sys/types.h> +.Fd #include <sys/socket.h> .Ft int .Fn getsockname "int s" "struct sockaddr *name" "int *namelen" .Sh DESCRIPTION @@ -51,7 +53,29 @@ the amount of space pointed to by .Fa name . On return it contains the actual size of the name returned (in bytes). -.Sh DIAGNOSTICS +.Sh IMPLEMENTATION NOTES +.Pp +In the non-threaded library +.Fn getsockname +is implemented as the +.Va getsockname +syscall. +.Pp +In the threaded library, the +.Va getsockname +syscall is assembled to +.Fn _thread_sys_getsockname +and +.Fn getsockname +is implemented as a function which locks +.Va fd +for read and write, then calls +.Fn _thread_sys_getsockname . +Before returning, +.Fn getsockname +unlocks +.Va fd . +.Sh RETURN VALUES A 0 is returned if the call succeeds, -1 if it fails. .Sh ERRORS The call succeeds unless: @@ -75,6 +99,7 @@ process address space. .El .Sh SEE ALSO .Xr bind 2 , +.Xr getpeername 2 , .Xr socket 2 .Sh BUGS Names bound to sockets in the UNIX domain are inaccessible; @@ -82,6 +107,6 @@ Names bound to sockets in the UNIX domain are inaccessible; returns a zero length name. .Sh HISTORY The -.Nm +.Fn getsockname function call appeared in .Bx 4.2 . |
