ref: 080cc49f5000a4e82c015af79dd6e489a33d3f68
dir: /sys/src/cmd/unix/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;
}