Mercurial > vim
view READMEdir/README_ole.txt @ 34320:9d07f1036a69 v9.1.0094
patch 9.1.0094: xxd: buffer-overflow when writing color output
Commit: https://github.com/vim/vim/commit/00221487731ea1868c57259c7aa0eb713cd7ade7
Author: Goffredo Baroncelli <kreijack@inwind.it>
Date: Sat Feb 10 13:31:06 2024 +0100
patch 9.1.0094: xxd: buffer-overflow when writing color output
Problem: xxd: buffer-overflow when writing color output
Solution: properly account for the color escape sequences and
adjust LLEN macro
(Goffredo Baroncelli)
xxd: crash with higer number of column
xxd writes the data into a buffer before printing. Unfortunately
the buffer doesn't consider the space consumed by the escape
sequences used to change the color of the character.
BEFORE:
$ xxd -Ralways -c 256 /etc/passwd
Segmentation fault (core dumped)
AFTER:
$ ./xxd -Ralways -c 256 /etc/passwd
00000000: 726f 6f74 3a78 3a30 3a30 3a72 6f6f 743a 2f72 [...]
To solve this issue I had to increase the size of the buffer
considering for each byte of data 11 further characters for the
color escape sequence.
closes: #14003
Signed-off-by: Goffredo Baroncelli <kreijack@libero.it>
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Sat, 10 Feb 2024 13:45:03 +0100 |
parents | 4635e43f2c6f |
children |
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README_ole.txt for version 9.1 of Vim: Vi IMproved. This archive contains gvim.exe with OLE interface. This version of gvim.exe can also load a number of interface dynamically (you can optionally install the .dll files for each interface). It is only for MS-Windows 95/98/ME/NT/2000/XP. Also see the README_bindos.txt, README_dos.txt and README.txt files. Be careful not to overwrite the OLE gvim.exe with the non-OLE gvim.exe when unpacking another binary archive! Check the output of ":version": Win32s - "MS-Windows 16/32 bit GUI version" Win32 - "MS-Windows 32 bit GUI version" Win32 with OLE - "MS-Windows 32 bit GUI version with OLE support" For further information, type this inside Vim: :help if_ole