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short-circuit File.Sync if not supported

This commit is contained in:
Cassondra Foesch 2025-02-27 13:51:25 +00:00
parent fb0652cf58
commit a2172dc0b9
1 changed files with 7 additions and 0 deletions
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7
client.go
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@ -2122,6 +2122,13 @@ func (f *File) Sync() error {
return os.ErrClosed
}
if data, ok := f.c.HasExtension(openssh.ExtensionFSync().Name); !ok || data != "1" {
return &StatusError{
Code: sshFxOPUnsupported,
msg: "fsync not supported",
}
}
id := f.c.nextID()
typ, data, err := f.c.sendPacket(context.Background(), nil, &sshFxpFsyncPacket{
ID: id,