ref: 27598a9c874c115795a3d59de093f8f158a73d87
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; }