ref: 176ccb9606a671c69cfcf1bdfb04a90c06cf5cce 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; }