43 lines
872 B
Go
43 lines
872 B
Go
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package main
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import "fmt"
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import "os"
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import "strings"
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func main() {
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var err error
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if len(os.Args) < 2 {
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goto wrong_usage
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}
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if strings.EqualFold(os.Args[1], "server") {
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if len(os.Args) < 3 {
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goto wrong_usage
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}
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err = server_main(os.Args[2:])
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if err != nil {
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fmt.Fprintf(os.Stderr, "ERROR: serer error - %s\n", err.Error())
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os.Exit(1)
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}
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} else if strings.EqualFold(os.Args[1], "client") {
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if len(os.Args) < 4 {
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goto wrong_usage
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}
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err = client_main(os.Args[2], os.Args[3:])
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if err != nil {
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fmt.Fprintf(os.Stderr, "ERROR: client error - %s\n", err.Error())
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os.Exit(1)
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}
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} else {
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goto wrong_usage
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}
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os.Exit(0)
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wrong_usage:
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fmt.Fprintf(os.Stderr, "USAGE: %s server listen-addr:listen-port\n", os.Args[0])
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fmt.Fprintf(os.Stderr, " %s client target-addr:target-port peer-addr:peer-port\n", os.Args[0])
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os.Exit(1)
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}
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