ref: 2b93fd2cd792cfc97b836c991d01a76f00f7ef7e dir: /libnpe/strnlen.c/
#include <string.h> size_t strnlen(char *s, size_t maxlen) { size_t i; for (i = 0; i < maxlen && s[i] != '\0'; i++) ; return i; }