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// Package signal provides helper functions for dealing with signals across
// various operating systems.
package signal
import (
"fmt"
"strconv"
"strings"
)
// CheckSignal translates a string to a valid syscall signal.
// It returns an error if the signal map doesn't include the given signal.
func CheckSignal(rawSignal string) error {
s, err := strconv.Atoi(rawSignal)
if err == nil {
if s == 0 {
return fmt.Errorf("Invalid signal: %s", rawSignal)
}
return nil
}
if _, ok := SignalMap[strings.TrimPrefix(strings.ToUpper(rawSignal), "SIG")]; !ok {
return fmt.Errorf("Invalid signal: %s", rawSignal)
}
return nil
}
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