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Fix bugs in wcsncpy

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a) overflow when cnt == 0
b) was bitwise & while needed logic &&
This commit is contained in:
deadwood
2024-11-12 14:52:20 +01:00
parent 1f5f78aa64
commit 29ea0da1c7
1 changed files with 9 additions and 3 deletions
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12
compiler/crt/stdc/wcsncpy.c
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@ -1,5 +1,5 @@
/*
Copyright (C) 2020, The AROS Development Team. All rights reserved.
Copyright (C) 2020-2024, The AROS Development Team. All rights reserved.
C99 function wcsncpy().
*/
@ -46,13 +46,19 @@
wchar_t *_wcptr;
/* copy the wide characters */
for (_wcptr = wcdst; (cnt-- > 0) & *wcsrc; wcsrc++)
for (_wcptr = wcdst; (cnt > 0) && *wcsrc; wcsrc++)
{
*_wcptr++ = *wcsrc;
cnt--;
}
/* terminate the wide string, and fill the remaining
* wide characters as specified in the spec... */
while (cnt-- > 0)
while (cnt > 0)
{
*_wcptr++ = 0x0000;
cnt--;
}
return wcdst;
} /* wcsncpy */