264e16318f
This keeps reexec working properly even if the on-disk binary was replaced. Signed-off-by: Tibor Vass <tibor@docker.com>
28 lines
640 B
Go
28 lines
640 B
Go
// +build linux
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package reexec
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import (
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"os/exec"
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"syscall"
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)
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// Self returns the path to the current process's binary.
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// Returns "/proc/self/exe".
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func Self() string {
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return "/proc/self/exe"
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}
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// Command returns *exec.Cmd which have Path as current binary. Also it setting
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// SysProcAttr.Pdeathsig to SIGTERM.
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// This will use the in-memory version (/proc/self/exe) of the current binary,
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// it is thus safe to delete or replace the on-disk binary (os.Args[0]).
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func Command(args ...string) *exec.Cmd {
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return &exec.Cmd{
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Path: Self(),
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Args: args,
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SysProcAttr: &syscall.SysProcAttr{
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Pdeathsig: syscall.SIGTERM,
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},
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}
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}
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