Commit Graph

8 Commits

Author SHA1 Message Date
Elliott Hughes fba2a1a1ec Fix SEGV in libziparchive with malformed zip file.
d77c99ebc3 changed MappedFile to return a
bogus zero-length mapping on failure rather than nullptr. None of the
calling code was changed, though, and it seems like doing so would be a
bad idea. Revert that part of the change.

Add missing tests, and tidy up some of the logging. Also remove
single-use or obfuscatory constants from the tests.

The new "empty.zip" was created by using zip(1) to create a zip file
with one entry, then using `zip -d` to remove it.

The new "zero-size-cd.zip" was created by using zip(1) to create a zip
file containing a single empty file, and then hex editing the two byte
"size of the central directory" field in the "end of central directory
record" structure at the end of the file. (This is equivalent to, but
much smaller than, the example zip file provided by the bug reporter.)

Bug: http://b/145925341
Test: treehugger
Change-Id: Iff64673bce7dae886ccbc9dd6c2bbe18de19f9d2
2019-12-17 08:39:09 -08:00
Tianjie Xu 769c601b91 resolve merge conflicts of 34486c5 to master
Change-Id: I12fc8eb4760bd6c4ae5c97583eb6c659122c9fa9
2016-10-18 15:46:56 -07:00
Tianjie Xu 18c25920c2 Add functions in recovery/minzip to libziparchive
Add two functions libziparchive that libminzip has. And create
corresponding unit tests.
1. Open a zip archive from a memory mapped region.
2. A new writer that takes a call back function pointer.
(Used by the OTA updater to stream the data.)

Test: Unit tests passed
Bug: 19472796
Change-Id: I2b2daec71174afe221030357e39bff5faea51e72
2016-10-15 23:16:34 -07:00
Tianjie Xu bcc4431f24 Check filename memory bound when parsing ziparchive
Add a check to ensure the filename boundary doesn't exceed the mapped
memory region. Also add the corresponding unit test.

Bug: 28802225
Test: New unit test passes.
Change-Id: Ibf543a7da3d7898952e9eb332c84cdfc67cf5aa4
2016-10-10 14:26:15 -07:00
Tianjie Xu ae8180c06d Fix out of bound access in libziparchive
The boundary check of an invalid EOCD record may succeed due to the
overflow of uint32_t. Fix the check and add a unit test.

Test: Open the crash.apk and libziparchive reports the offset error as expected.

Bug: 31251826
Change-Id: I1d8092a19b73886a671bc9d291cfc27d65e3d236
2016-09-22 11:24:42 -07:00
Christopher Ferris e6884ce56f Add a ZipArchiveStreamEntry class.
This allows someone to stream the data out of a zip archive
instead of extracting to a file or to memory.

Included in this change is a small cleanup of the makefile.

Change-Id: I8b679a679c3502ff4ea0bc4f9e918303657fa424
2016-01-14 12:30:20 -08:00
Mykola Kondratenko 50afc159b3 libziparchive: fix issue with a directory with one file
libziparchive fails to iterate some bootanimation archives
reporting invalid offset error. This is caused by failure
to process a directory with one file
(when name_offset + file_name_length == cd_offset).

Change-Id: I2733e7f782c14a6fadd5491bb94318ac968df206
2015-03-19 09:28:41 +00:00
Narayan Kamath 58aaf46e4d Add unit tests for libziparchive.
- Add a build rule for host tests
- Add basic tests for Find / Iterate and Extract
  for both deflated & stored entries.
- Fix an off by one error that the test uncovered.

Change-Id: If72009b1ea9791d5a265829f05c32ffe1c2752c4
2013-12-10 16:48:50 +00:00