[COMPRESS-129] "java.io.EOFException: Truncated ZIP entry: <some entry>"- while extracting a zip file that contains a entry which lager than 2 GB (Integer#MAX_VALUE)

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.1
• Fix Version/s: 1.2
• Component/s: Archivers

Environment

Ubuntu 10; java 6 of sun

• Assignee: Unassigned
• Reporter: tinghui wang
• Created: 12/May/11 13:13
• Updated: 26/Jul/11 14:14
• Resolved: 26/Jul/11 14:14

Description

Issue:
"java.io.EOFException: Truncated ZIP entry: <some entry>" will be threw while extracting a zip file that contains a entry with size larger than Integer#MAX_VALUE bytes (about 2 GB). After the big entry has been read, then try to get next entry by calling ZipArchiveInputStream#getNextZipEntry(), and it throws that EOFException.

Cause:
before getting next zip entry, ZipArchiveInputStream tries to close the current entry and in the close- method it use the field "bytesReadFromStream" to ensure all entry bytes are read, however the field "bytesReadFromStream" is a integer, that means it is already overflowed and it leads to a false ensure result.

Solution suggestion:
instead integer using long for "bytesReadFromStream" and possibly for "readBytesOfEntry" too.