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crazy-max_diun/vendor/github.com/docker/go-connections/nat/parse.go
2024-12-14 22:30:21 +01:00

34 lines
748 B
Go

package nat
import (
"fmt"
"strconv"
"strings"
)
// ParsePortRange parses and validates the specified string as a port-range (8000-9000)
func ParsePortRange(ports string) (uint64, uint64, error) {
if ports == "" {
return 0, 0, fmt.Errorf("empty string specified for ports")
}
if !strings.Contains(ports, "-") {
start, err := strconv.ParseUint(ports, 10, 16)
end := start
return start, end, err
}
parts := strings.Split(ports, "-")
start, err := strconv.ParseUint(parts[0], 10, 16)
if err != nil {
return 0, 0, err
}
end, err := strconv.ParseUint(parts[1], 10, 16)
if err != nil {
return 0, 0, err
}
if end < start {
return 0, 0, fmt.Errorf("invalid range specified for port: %s", ports)
}
return start, end, nil
}