kotovalexarian-likes-gitlab/sortix--sortix
1
0
Fork 0
mirror of https://gitlab.com/sortix/sortix.git synced 2023-02-13 20:55:38 -05:00
Code Releases Activity

Fix wmemmove(3) off-by-one bounds error.

Browse source
This commit is contained in:
Jonas 'Sortie' Termansen 2014-09-24 21:12:53 +02:00
parent c0ad3d8a80
commit 86cd065aa7
1 changed files with 6 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
libc/wchar/wmemmove.cpp
View file

@ -1,6 +1,6 @@
/******************************************************************************* /*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2013. Copyright(C) Jonas 'Sortie' Termansen 2013, 2014.
This file is part of the Sortix C Library. This file is part of the Sortix C Library.
@ -28,10 +28,14 @@
extern "C" wchar_t* wmemmove(wchar_t* dst, const wchar_t* src, size_t n) extern "C" wchar_t* wmemmove(wchar_t* dst, const wchar_t* src, size_t n)
{ {
if ( (uintptr_t) dst < (uintptr_t) src ) if ( (uintptr_t) dst < (uintptr_t) src )
{
for ( size_t i = 0; i < n; i++ ) for ( size_t i = 0; i < n; i++ )
dst[i] = src[i]; dst[i] = src[i];
}
else else
{
for ( size_t i = 0; i < n; i++ ) for ( size_t i = 0; i < n; i++ )
dst[n-i] = src[n-i]; dst[n-(i+1)] = src[n-(i+1)];
}
return dst; return dst;
} }