ref: 87d72e7e8614d96b4f61adae5fb05b0534231c4c
dir: /libkern/strecpy.c/
#include <lib9.h> char* strecpy(char *to, char *e, char *from) { if(to >= e) return to; to = memccpy(to, from, '\0', e - to); if(to == nil){ to = e - 1; *to = '\0'; }else{ to--; } return to; }