slang/SOURCES/slang-getkey-memmove.patch
2021-10-08 16:48:14 +00:00

32 lines
975 B
Diff

commit d338fd6e949ef62e7eac4eb5c024059e02158b06
Author: Miroslav Lichvar <mlichvar@redhat.com>
Date: Wed Jul 25 13:07:42 2018 +0200
Replaced memcpy in SLang_getkey
memcpy() is not defined for overlapping buffers, i.e. it may copy bytes
in any direction. As SLMEMMOVE is not defined in slang, replace the
SLMEMCPY call with a for loop.
diff --git a/src/slgetkey.c b/src/slgetkey.c
index 86e7946..d9bc678 100644
--- a/src/slgetkey.c
+++ b/src/slgetkey.c
@@ -40,13 +40,13 @@ unsigned int SLang_getkey (void)
if (SLang_Input_Buffer_Len)
{
- unsigned int imax;
+ unsigned int i, imax;
ch = (unsigned int) *SLang_Input_Buffer;
SLang_Input_Buffer_Len--;
imax = SLang_Input_Buffer_Len;
- SLMEMCPY ((char *) SLang_Input_Buffer,
- (char *) (SLang_Input_Buffer + 1), imax);
+ for (i = 0; i < imax; i++)
+ SLang_Input_Buffer[i] = SLang_Input_Buffer[i + 1];
}
else if (SLANG_GETKEY_ERROR == (ch = _pSLsys_getkey ())) return ch;