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

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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
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8
libc/wchar/wmemmove.cpp
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@ -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.
@ -28,10 +28,14 @@
extern "C" wchar_t* wmemmove(wchar_t* dst, const wchar_t* src, size_t n)
{
if ( (uintptr_t) dst < (uintptr_t) src )
{
for ( size_t i = 0; i < n; i++ )
dst[i] = src[i];
}
else
{
for ( size_t i = 0; i < n; i++ )
dst[n-i] = src[n-i];
dst[n-(i+1)] = src[n-(i+1)];
}
return dst;
}