Plan 9 from Bell Labs’s /usr/web/sources/contrib/sl/u9fs/u9fs/strecpy.c
#include <plan9.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'; } return to; }