113 static int pty_open_master(const char *prog, int *cntrl, char *slave_name);
116 static int pty_parent(const char *prog, int cntrl);
117 static int pty_stop_parent(int waserr, int cntrl, GetLine *gl, char *rbuff);
131   int cntrl = -1;  /* The fd of the pseudo-terminal controller device */  in main()  local
172   if(pty_open_master(prog, &cntrl, slave_name))  in main()
201     status = pty_parent(prog, cntrl);  in main()
202     close(cntrl);  in main()
204     close(cntrl); /* The child doesn't use the slave device */  in main()
232 static int pty_open_master(const char *prog, int *cntrl, char *slave_name)  in pty_open_master()  argument
240   *cntrl = -1;  in pty_open_master()
248   *cntrl = open("/dev/ptmx", O_RDWR);  in pty_open_master()
249   if(*cntrl >= 0) {  in pty_open_master()
253     char *name = ptsname(*cntrl);  in pty_open_master()
265       close(*cntrl);  in pty_open_master()
266       *cntrl = -1;  in pty_open_master()
287     while(*cntrl < 0 && (file = readdir(dir))) {  in pty_open_master()
301 	*cntrl = open(master_name, O_RDWR);  in pty_open_master()
302 	if(*cntrl < 0)  in pty_open_master()
319   if(*cntrl < 0) {  in pty_open_master()
328   if(grantpt(*cntrl) < 0 ||  in pty_open_master()
329      unlockpt(*cntrl) < 0) {  in pty_open_master()
417 static int pty_parent(const char *prog, int cntrl)  in pty_parent()  argument
427     return pty_stop_parent(1, cntrl, gl, rbuff);  in pty_parent()
434     return pty_stop_parent(1, cntrl, gl, rbuff);  in pty_parent()
440   if(gl_watch_fd(gl, cntrl, GLFD_READ, pty_read_from_program, rbuff))  in pty_parent()
441     return pty_stop_parent(1, cntrl, gl, rbuff);  in pty_parent()
447     if(pty_write_to_fd(cntrl, line, strlen(line)))  in pty_parent()
448        return pty_stop_parent(1, cntrl, gl, rbuff);  in pty_parent()
451   return pty_stop_parent(0, cntrl, gl, rbuff);  in pty_parent()
472 static int pty_stop_parent(int waserr, int cntrl, GetLine *gl, char *rbuff)  in pty_stop_parent()  argument
478   close(cntrl);  in pty_stop_parent()