33 lines
559 B
Go
33 lines
559 B
Go
package vars
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import (
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"bytes"
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"fmt"
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"io/ioutil"
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)
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var (
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bootVarPrefix = []byte("direktil.var.")
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)
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func BootArgs() [][]byte {
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ba, err := ioutil.ReadFile("/proc/cmdline")
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if err != nil {
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// should not happen
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panic(fmt.Errorf("failed to read /proc/cmdline: ", err))
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}
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return bytes.Split(ba, []byte{' '})
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}
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func BootArgValue(prefix, defaultValue string) string {
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prefixB := []byte("direktil." + prefix + "=")
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for _, ba := range BootArgs() {
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if bytes.HasPrefix(ba, prefixB) {
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return string(ba[len(prefixB):])
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}
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}
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return defaultValue
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}
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