42 lines
1.1 KiB
Ruby
42 lines
1.1 KiB
Ruby
# Copyright (c) HashiCorp, Inc.
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# SPDX-License-Identifier: BUSL-1.1
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require "fiddle/import"
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module Vagrant
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module Util
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module WindowsPath
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module API
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extend Fiddle::Importer
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dlload 'kernel32.dll'
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extern("int GetLongPathNameA(char*, char*, int)", :stdcall)
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end
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# Converts a Windows shortname to a long name. This only works
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# for ASCII paths currently and doesn't use the wide character
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# support.
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def self.longname(name)
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# We loop over the API call in case we didn't allocate enough
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# buffer space. In general it is usually enough.
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bufferlen = 250
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buffer = nil
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while true
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buffer = ' ' * bufferlen
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len = API.GetLongPathNameA(name.to_s, buffer, buffer.size)
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if bufferlen < len
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# If the length returned is larger than our buffer length,
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# it is the API telling us it needs more space. Allocate it
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# and retry.
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bufferlen = len
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continue
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end
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break
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end
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return buffer.rstrip.chomp("\0")
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end
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end
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end
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end
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