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fix read the big zip error

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fix read the big zip error
This commit is contained in:
Alanthur 2024-10-14 18:00:15 +08:00 committed by GitHub
parent b521ebb55a
commit eab1f0d436
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GPG Key ID: B5690EEEBB952194
1 changed files with 3 additions and 3 deletions
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6
src/archive/zip/reader.go
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@ -565,10 +565,10 @@ func readDataDescriptor(r io.Reader, f *File) error {
}
func readDirectoryEnd(r io.ReaderAt, size int64) (dir *directoryEnd, baseOffset int64, err error) {
// look for directoryEndSignature in the last 1k, then in the last 65k
// look for directoryEndSignature in the last 1k, then in the last 65k, then in the last 5M
var buf []byte
var directoryEndOffset int64
for i, bLen := range []int64{1024, 65 * 1024} {
for i, bLen := range []int64{1024, 65 * 1024,5*1024*1024} {
if bLen > size {
bLen = size
}
@ -581,7 +581,7 @@ func readDirectoryEnd(r io.ReaderAt, size int64) (dir *directoryEnd, baseOffset
directoryEndOffset = size - bLen + int64(p)
break
}
if i == 1 || bLen == size {
if i == 2 || bLen == size {
return nil, 0, ErrFormat
}
}