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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libgo/syscalls/socket_linux.go | |
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Diffstat (limited to 'libgo/syscalls/socket_linux.go')
-rw-r--r-- | libgo/syscalls/socket_linux.go | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/libgo/syscalls/socket_linux.go b/libgo/syscalls/socket_linux.go new file mode 100644 index 000000000..cdcdf4ff2 --- /dev/null +++ b/libgo/syscalls/socket_linux.go @@ -0,0 +1,75 @@ +// socket_linux.go -- Socket handling specific to Linux. + +// Copyright 2010 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package syscall + +const SizeofSockaddrInet4 = 16 +const SizeofSockaddrInet6 = 28 +const SizeofSockaddrUnix = 110 + +type RawSockaddrInet4 struct { + Family uint16; + Port uint16; + Addr [4]byte /* in_addr */; + Zero [8]uint8; +} + +func (sa *RawSockaddrInet4) setLen() Socklen_t { + return SizeofSockaddrInet4 +} + +type RawSockaddrInet6 struct { + Family uint16; + Port uint16; + Flowinfo uint32; + Addr [16]byte /* in6_addr */; + Scope_id uint32; +} + +func (sa *RawSockaddrInet6) setLen() Socklen_t { + return SizeofSockaddrInet6 +} + +type RawSockaddrUnix struct { + Family uint16; + Path [108]int8; +} + +func (sa *RawSockaddrUnix) setLen(int) { +} + +func (sa *RawSockaddrUnix) getLen() (int, int) { + if sa.Path[0] == 0 { + // "Abstract" Unix domain socket. + // Rewrite leading NUL as @ for textual display. + // (This is the standard convention.) + // Not friendly to overwrite in place, + // but the callers below don't care. + sa.Path[0] = '@'; + } + + // Assume path ends at NUL. + // This is not technically the Linux semantics for + // abstract Unix domain sockets--they are supposed + // to be uninterpreted fixed-size binary blobs--but + // everyone uses this convention. + n := 0; + for n < len(sa.Path) - 3 && sa.Path[n] != 0 { + n++; + } + + return n, 0 +} + +type RawSockaddr struct { + Family uint16; + Data [14]int8; +} + +// BindToDevice binds the socket associated with fd to device. +func BindToDevice(fd int, device string) (errno int) { + return SetsockoptString(fd, SOL_SOCKET, SO_BINDTODEVICE, device) +} |