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// Copyright 2018 The gVisor 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.
package strace
import (
"gvisor.dev/gvisor/pkg/abi"
"gvisor.dev/gvisor/pkg/abi/linux"
)
// OpenMode represents the mode to open(2) a file.
var OpenMode = abi.ValueSet{
linux.O_RDWR: "O_RDWR",
linux.O_WRONLY: "O_WRONLY",
linux.O_RDONLY: "O_RDONLY",
}
// OpenFlagSet is the set of open(2) flags.
var OpenFlagSet = abi.FlagSet{
{
Flag: linux.O_APPEND,
Name: "O_APPEND",
},
{
Flag: linux.O_ASYNC,
Name: "O_ASYNC",
},
{
Flag: linux.O_CLOEXEC,
Name: "O_CLOEXEC",
},
{
Flag: linux.O_CREAT,
Name: "O_CREAT",
},
{
Flag: linux.O_DIRECT,
Name: "O_DIRECT",
},
{
Flag: linux.O_DIRECTORY,
Name: "O_DIRECTORY",
},
{
Flag: linux.O_EXCL,
Name: "O_EXCL",
},
{
Flag: linux.O_NOATIME,
Name: "O_NOATIME",
},
{
Flag: linux.O_NOCTTY,
Name: "O_NOCTTY",
},
{
Flag: linux.O_NOFOLLOW,
Name: "O_NOFOLLOW",
},
{
Flag: linux.O_NONBLOCK,
Name: "O_NONBLOCK",
},
{
Flag: 0x200000, // O_PATH
Name: "O_PATH",
},
{
Flag: linux.O_SYNC,
Name: "O_SYNC",
},
{
Flag: linux.O_TMPFILE,
Name: "O_TMPFILE",
},
{
Flag: linux.O_TRUNC,
Name: "O_TRUNC",
},
}
func open(val uint64) string {
s := OpenMode.Parse(val & linux.O_ACCMODE)
if flags := OpenFlagSet.Parse(val &^ linux.O_ACCMODE); flags != "" {
s += "|" + flags
}
return s
}
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