all: Switch from package syscall to golang.org/x/sys/unix

The syscall package is locked down and the comment in [1] advises to
switch code to use the corresponding package from golang.org/x/sys. Do
so and replace usage of package syscall where possible (leave
syscall.SysProcAttr and syscall.Stat_t).

  [1] https://github.com/golang/go/blob/master/src/syscall/syscall.go#L21-L24

This will also allow to get updates and fixes just by re-vendoring
golang.org/x/sys/unix instead of having to update to a new go version.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
This commit is contained in:
Tobias Klauser 2017-06-28 17:47:31 +02:00
parent c9edee9af2
commit 822172a892
7 changed files with 24 additions and 23 deletions

View file

@ -2,19 +2,20 @@ package main
import (
"os"
"syscall"
"golang.org/x/sys/unix"
)
const (
// SeccompModeFilter refers to the syscall argument SECCOMP_MODE_FILTER.
// SeccompModeFilter refers to the unix argument SECCOMP_MODE_FILTER.
SeccompModeFilter = uintptr(2)
)
func main() {
// Check if Seccomp is supported, via CONFIG_SECCOMP.
if _, _, err := syscall.RawSyscall(syscall.SYS_PRCTL, syscall.PR_GET_SECCOMP, 0, 0); err != syscall.EINVAL {
if _, _, err := unix.RawSyscall(unix.SYS_PRCTL, unix.PR_GET_SECCOMP, 0, 0); err != unix.EINVAL {
// Make sure the kernel has CONFIG_SECCOMP_FILTER.
if _, _, err := syscall.RawSyscall(syscall.SYS_PRCTL, syscall.PR_SET_SECCOMP, SeccompModeFilter, 0); err != syscall.EINVAL {
if _, _, err := unix.RawSyscall(unix.SYS_PRCTL, unix.PR_SET_SECCOMP, SeccompModeFilter, 0); err != unix.EINVAL {
os.Exit(0)
}
}