48 lines
1014 B
Go
48 lines
1014 B
Go
//go:build linux
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package aghos
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import (
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"io"
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"os"
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"syscall"
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"github.com/AdguardTeam/golibs/osutil"
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"github.com/AdguardTeam/golibs/stringutil"
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)
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func setRlimit(val uint64) (err error) {
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var rlim syscall.Rlimit
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rlim.Max = val
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rlim.Cur = val
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return syscall.Setrlimit(syscall.RLIMIT_NOFILE, &rlim)
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}
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func haveAdminRights() (bool, error) {
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// The error is nil because the platform-independent function signature
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// requires returning an error.
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return os.Getuid() == 0, nil
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}
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func isOpenWrt() (ok bool) {
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const etcReleasePattern = "etc/*release*"
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var err error
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ok, err = FileWalker(func(r io.Reader) (_ []string, cont bool, err error) {
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const osNameData = "openwrt"
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// This use of ReadAll is now safe, because FileWalker's Walk()
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// have limited r.
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var data []byte
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data, err = io.ReadAll(r)
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if err != nil {
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return nil, false, err
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}
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return nil, !stringutil.ContainsFold(string(data), osNameData), nil
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}).Walk(osutil.RootDirFS(), etcReleasePattern)
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return err == nil && ok
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}
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