nvi-slackware
=============

nvi 1.81.6 SlackBuild with Debian and upstream patches for
Slackware-current.

Based on Patrick Volkerding's build 4, which merged the Debian
1.81.6-24 patchset. This repo adds upstream patches on top.

Additional upstream patches
---------------------------

  0043 - ex_comm_search: avoid potential buffer overflow
         Commit: 62f628323d
         Source: https://repo.or.cz/nvi.git/commit/62f628323d

  0045 - avoid invalid access in filename expansion with missing file
         Commit: 401bfbf750
         Source: https://repo.or.cz/nvi.git/commit/401bfbf750

  0046 - ex_aci: free local TEXTH structure
         Commit: 0875b9abaa
         Source: https://repo.or.cz/nvi.git/commit/0875b9abaa

  0047 - screen_end: free line cache
         Commit: 69e8a792561
         Source: https://repo.or.cz/nvi.git/commit/69e8a792561

  0048 - file_spath: detect errors during stat
         Commit: 8e8d24e682
         Source: https://repo.or.cz/nvi.git/commit/8e8d24e682
         Supersedes the downstream 08lfs.patch (see below).

Patches superseded by upstream
------------------------------

  08lfs.patch  ->  0048 (commit 8e8d24e682)

         The Debian/Slackware 08lfs.patch was a downstream workaround
         that only handled the EOVERFLOW case (>2GB files on non-LFS
         builds) at a single call site in file_spath().

         Sven's upstream fix addresses the underlying defect: stat()
         failures other than ENOENT were being silently treated as
         "file does not exist", which could lead to overwrites in
         several other error cases (EACCES, ENAMETOOLONG, EIO, etc.).

         08lfs.patch has been removed in favour of the upstream fix.

Patch count
-----------

  Slackware build 4:  41 patches (31 Debian + 7 upstream + 3 GCC)
  This repo:          45 patches (-1 superseded, +5 upstream)

Build and test
--------------

  Tested on Slackware-current x86_64, GCC 15, kernel 7.0.3.
  All patches apply cleanly. No regressions observed.

References
----------

  nvi upstream:     https://repo.or.cz/nvi.git
  Debian source:    https://salsa.debian.org/debian/nvi
  Slackware nvi:    slackware64-current/source/ap/nvi/