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https://github.com/containers/skopeo.git
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69b9106646
containers/storage got new dependencies, so we will need to re-vendor eventually anyway, and having this separate from other major work is cleaner. But the primary goal of this commit is to see whether it makes skopeo buildable on OS X.
25 lines
752 B
Go
25 lines
752 B
Go
// +build linux darwin freebsd openbsd netbsd dragonfly
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// Copyright 2014 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin dragonfly freebsd linux netbsd openbsd
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package unix
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import "unsafe"
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// fcntl64Syscall is usually SYS_FCNTL, but is overridden on 32-bit Linux
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// systems by flock_linux_32bit.go to be SYS_FCNTL64.
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var fcntl64Syscall uintptr = SYS_FCNTL
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// FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command.
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func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error {
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_, _, errno := Syscall(fcntl64Syscall, fd, uintptr(cmd), uintptr(unsafe.Pointer(lk)))
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if errno == 0 {
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return nil
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}
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return errno
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}
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