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fix strncat and wcsncat (double null termination)

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also modify wcsncpy to use the same loop logic
This commit is contained in:
Rich Felker 2011-05-22 21:58:43 -04:00
parent e98136207a
commit 86339bc4ba
3 changed files with 3 additions and 3 deletions
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2
src/string/strncat.c
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@ -4,7 +4,7 @@ char *strncat(char *d, const char *s, size_t n)
{
char *a = d;
d += strlen(d);
while (n && (*d++ = *s++)) n--;
while (n && *s) n--, *d++ = *s++;
*d++ = 0;
return a;
}

2
src/string/wcsncat.c
View file

@ -4,7 +4,7 @@ wchar_t *wcsncat(wchar_t *d, const wchar_t *s, size_t n)
{
wchar_t *a = d;
d += wcslen(d);
while (n && (*d++ = *s++)) n--;
while (n && *s) n--, *d++ = *s++;
*d++ = 0;
return a;
}

2
src/string/wcsncpy.c
View file

@ -3,7 +3,7 @@
wchar_t *wcsncpy(wchar_t *d, const wchar_t *s, size_t n)
{
wchar_t *a = d;
for (; n && (*d = *s); n--, d++, s++);
while (n && *s) n--, *d++ = *s++;
wmemset(d, 0, n);
return a;
}