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helpers_all.go
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/
helpers_all.go
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// Copyright 2023-2024 The Inspektor Gadget authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// This file contains generic helpers that are not specific to an operating system nor architecture.
package gadgets
import (
"fmt"
"syscall"
)
func ProtoString(proto int) string {
// proto definitions:
// https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml
protoStr := fmt.Sprintf("UNKNOWN#%d", proto)
switch proto {
case syscall.IPPROTO_TCP:
protoStr = "TCP"
case syscall.IPPROTO_UDP:
protoStr = "UDP"
}
return protoStr
}
func FromCString(in []byte) string {
for i := 0; i < len(in); i++ {
if in[i] == 0 {
return string(in[:i])
}
}
return string(in)
}
func FromCStringN(in []byte, length int) string {
l := len(in)
if length < l {
l = length
}
for i := 0; i < l; i++ {
if in[i] == 0 {
return string(in[:i])
}
}
return string(in[:l])
}