PTY_CNTRL
if(strncmp(file->d_name, PTY_CNTRL, sizeof(PTY_CNTRL)-1) == 0) {
const char *ext = file->d_name + sizeof(PTY_CNTRL)-1;
strlcat(manager_name, PTY_CNTRL, sizeof(manager_name));
(sizeof(PTY_SUBSID) > sizeof(PTY_CNTRL) ? \
sizeof(PTY_SUBSID) : sizeof(PTY_CNTRL))-1 \