1 // Copyright 2016 The Fuchsia Authors
2 // Copyright (c) 2008 Travis Geiselbrecht
3 //
4 // Use of this source code is governed by a MIT-style
5 // license that can be found in the LICENSE file or at
6 // https://opensource.org/licenses/MIT
7 
8 #include <string.h>
9 #include <sys/types.h>
10 
11 size_t
strnlen(char const * s,size_t count)12 strnlen(char const *s, size_t count)
13 {
14     const char *sc;
15 
16     for (sc = s; count-- && *sc != '\0'; ++sc)
17         ;
18     return sc - s;
19 }
20