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1 // Copyright 2011 The Go Authors. All rights reserved. | 1 // Copyright 2011 The Go Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style | 2 // Use of this source code is governed by a BSD-style |
3 // license that can be found in the LICENSE file. | 3 // license that can be found in the LICENSE file. |
4 | 4 |
5 //build darwin freebsd openbsd | 5 // +build darwin freebsd openbsd |
6 | 6 |
7 // Berkeley packet filter for BSD variants | 7 // Berkeley packet filter for BSD variants |
8 | 8 |
9 package syscall | 9 package syscall |
10 | 10 |
11 import ( | 11 import ( |
12 "unsafe" | 12 "unsafe" |
13 ) | 13 ) |
14 | 14 |
15 func BpfStmt(code, k int) *BpfInsn { | 15 func BpfStmt(code, k int) *BpfInsn { |
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160 return f, 0 | 160 return f, 0 |
161 } | 161 } |
162 | 162 |
163 func SetBpfHeadercmpl(fd, f int) int { | 163 func SetBpfHeadercmpl(fd, f int) int { |
164 _, _, ep := Syscall(SYS_IOCTL, uintptr(fd), BIOCSHDRCMPLT, uintptr(unsaf
e.Pointer(&f))) | 164 _, _, ep := Syscall(SYS_IOCTL, uintptr(fd), BIOCSHDRCMPLT, uintptr(unsaf
e.Pointer(&f))) |
165 if e := int(ep); e != 0 { | 165 if e := int(ep); e != 0 { |
166 return e | 166 return e |
167 } | 167 } |
168 return 0 | 168 return 0 |
169 } | 169 } |
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