fix undefined behavior in free

[musl] / src / string / strlcpy.c

diff --git a/src/string/strlcpy.c b/src/string/strlcpy.c
index 6aeb106..193d724 100644 (file)
--- a/src/string/strlcpy.c
+++ b/src/string/strlcpy.c
@@ -1,5 +1,5 @@
+#define _BSD_SOURCE
 #include <string.h>
-#include <stdlib.h>
 #include <stdint.h>
 #include <limits.h>
 #include "libc.h"
@@ -16,7 +16,7 @@ size_t strlcpy(char *d, const char *s, size_t n)
        const size_t *ws;
 
        if (!n--) goto finish;
-       if (((uintptr_t)s & ALIGN) != ((uintptr_t)d & ALIGN)) {
+       if (((uintptr_t)s & ALIGN) == ((uintptr_t)d & ALIGN)) {
                for (; ((uintptr_t)s & ALIGN) && n && (*d=*s); n--, s++, d++);
                if (n && *s) {
                        wd=(void *)d; ws=(const void *)s;