mirror of
https://github.com/JetSetIlly/Gopher2600.git
synced 2024-06-02 12:08:01 -04:00
e3f4a743b6
archivefs allows opening of files inside a zip archive. support for other archive file type will be added in the future when possible
43 lines
1.3 KiB
Go
43 lines
1.3 KiB
Go
// This file is part of Gopher2600.
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//
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// Gopher2600 is free software: you can redistribute it and/or modify
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// it under the terms of the gnu general public license as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Gopher2600 is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Gopher2600. If not, see <https://www.gnu.org/licenses/>.
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package cartridgeloader
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import (
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"bytes"
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"os"
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)
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// mini-fingerprints exist only to help the cartridge loader make a correct
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// decision about how to handle the cartridge data. we don't need to know much
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// about the data for most cartridge types
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//
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// full cartridge fingerprinting is in the cartridge package
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// special handling for MVC files without the MVC file extension
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func miniFingerprintMovieCart(filename string) (bool, error) {
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f, err := os.Open(filename)
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if err != nil {
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return false, err
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}
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defer f.Close()
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b := make([]byte, 4)
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f.Read(b)
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if bytes.Compare(b, []byte{'M', 'V', 'C', 0x00}) == 0 {
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return true, nil
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}
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return false, nil
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}
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