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fix wcsncpy writing past end of buffer
[musl]
/
src
/
string
/
strchr.c
diff --git
a/src/string/strchr.c
b/src/string/strchr.c
index
2fe0338
..
d3563f1
100644
(file)
--- a/
src/string/strchr.c
+++ b/
src/string/strchr.c
@@
-15,8
+15,9
@@
char *strchr(const char *s, int c)
c = (unsigned char)c;
if (!c) return (char *)s + strlen(s);
c = (unsigned char)c;
if (!c) return (char *)s + strlen(s);
- for (; ((uintptr_t)s & ALIGN)
&& *s
; s++)
+ for (; ((uintptr_t)s & ALIGN); s++)
if (*(unsigned char *)s == c) return (char *)s;
if (*(unsigned char *)s == c) return (char *)s;
+ else if (!*s) return 0;
k = ONES * c;
for (w = (void *)s; !HASZERO(*w) && !HASZERO(*w^k); w++);
for (s = (void *)w; *s; s++)
k = ONES * c;
for (w = (void *)s; !HASZERO(*w) && !HASZERO(*w^k); w++);
for (s = (void *)w; *s; s++)