OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libgo/] [go/] [net/] [file.go] - Blame information for rev 833

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 747 jeremybenn 
// Copyright 2011 The Go Authors. All rights reserved.
2 
// Use of this source code is governed by a BSD-style
3 
// license that can be found in the LICENSE file.
4 
 
5 
// +build darwin freebsd linux netbsd openbsd
6 
 
7 
package net
8 
 
9 
import (
10 
        "os"
11 
        "syscall"
12 
)
13 
 
14 
func newFileFD(f *os.File) (*netFD, error) {
15 
        fd, err := syscall.Dup(f.Fd())
16 
        if err != nil {
17 
                return nil, os.NewSyscallError("dup", err)
18 
        }
19 
 
20 
        proto, err := syscall.GetsockoptInt(fd, syscall.SOL_SOCKET, syscall.SO_TYPE)
21 
        if err != nil {
22 
                return nil, os.NewSyscallError("getsockopt", err)
23 
        }
24 
 
25 
        family := syscall.AF_UNSPEC
26 
        toAddr := sockaddrToTCP
27 
        sa, _ := syscall.Getsockname(fd)
28 
        switch sa.(type) {
29 
        default:
30 
                closesocket(fd)
31 
                return nil, os.EINVAL
32 
        case *syscall.SockaddrInet4:
33 
                family = syscall.AF_INET
34 
                if proto == syscall.SOCK_DGRAM {
35 
                        toAddr = sockaddrToUDP
36 
                } else if proto == syscall.SOCK_RAW {
37 
                        toAddr = sockaddrToIP
38 
                }
39 
        case *syscall.SockaddrInet6:
40 
                family = syscall.AF_INET6
41 
                if proto == syscall.SOCK_DGRAM {
42 
                        toAddr = sockaddrToUDP
43 
                } else if proto == syscall.SOCK_RAW {
44 
                        toAddr = sockaddrToIP
45 
                }
46 
        case *syscall.SockaddrUnix:
47 
                family = syscall.AF_UNIX
48 
                toAddr = sockaddrToUnix
49 
                if proto == syscall.SOCK_DGRAM {
50 
                        toAddr = sockaddrToUnixgram
51 
                } else if proto == syscall.SOCK_SEQPACKET {
52 
                        toAddr = sockaddrToUnixpacket
53 
                }
54 
        }
55 
        laddr := toAddr(sa)
56 
        sa, _ = syscall.Getpeername(fd)
57 
        raddr := toAddr(sa)
58 
 
59 
        netfd, err := newFD(fd, family, proto, laddr.Network())
60 
        if err != nil {
61 
                return nil, err
62 
        }
63 
        netfd.setAddr(laddr, raddr)
64 
        return netfd, nil
65 
}
66 
 
67 
// FileConn returns a copy of the network connection corresponding to
68 
// the open file f.  It is the caller's responsibility to close f when
69 
// finished.  Closing c does not affect f, and closing f does not
70 
// affect c.
71 
func FileConn(f *os.File) (c Conn, err error) {
72 
        fd, err := newFileFD(f)
73 
        if err != nil {
74 
                return nil, err
75 
        }
76 
        switch fd.laddr.(type) {
77 
        case *TCPAddr:
78 
                return newTCPConn(fd), nil
79 
        case *UDPAddr:
80 
                return newUDPConn(fd), nil
81 
        case *UnixAddr:
82 
                return newUnixConn(fd), nil
83 
        case *IPAddr:
84 
                return newIPConn(fd), nil
85 
        }
86 
        fd.Close()
87 
        return nil, os.EINVAL
88 
}
89 
 
90 
// FileListener returns a copy of the network listener corresponding
91 
// to the open file f.  It is the caller's responsibility to close l
92 
// when finished.  Closing c does not affect l, and closing l does not
93 
// affect c.
94 
func FileListener(f *os.File) (l Listener, err error) {
95 
        fd, err := newFileFD(f)
96 
        if err != nil {
97 
                return nil, err
98 
        }
99 
        switch laddr := fd.laddr.(type) {
100 
        case *TCPAddr:
101 
                return &TCPListener{fd}, nil
102 
        case *UnixAddr:
103 
                return &UnixListener{fd, laddr.Name}, nil
104 
        }
105 
        fd.Close()
106 
        return nil, os.EINVAL
107 
}
108 
 
109 
// FilePacketConn returns a copy of the packet network connection
110 
// corresponding to the open file f.  It is the caller's
111 
// responsibility to close f when finished.  Closing c does not affect
112 
// f, and closing f does not affect c.
113 
func FilePacketConn(f *os.File) (c PacketConn, err error) {
114 
        fd, err := newFileFD(f)
115 
        if err != nil {
116 
                return nil, err
117 
        }
118 
        switch fd.laddr.(type) {
119 
        case *UDPAddr:
120 
                return newUDPConn(fd), nil
121 
        case *UnixAddr:
122 
                return newUnixConn(fd), nil
123 
        }
124 
        fd.Close()
125 
        return nil, os.EINVAL
126 
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.