| … | |
… | |
| 276 | static int |
276 | static int |
| 277 | control_tty (int fd_tty) |
277 | control_tty (int fd_tty) |
| 278 | { |
278 | { |
| 279 | setsid (); |
279 | setsid (); |
| 280 | |
280 | |
| 281 | # if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
281 | #if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
| 282 | /* |
282 | /* |
| 283 | * Push STREAMS modules: |
283 | * Push STREAMS modules: |
| 284 | * ptem: pseudo-terminal hardware emulation module. |
284 | * ptem: pseudo-terminal hardware emulation module. |
| 285 | * ldterm: standard terminal line discipline. |
285 | * ldterm: standard terminal line discipline. |
| 286 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
286 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
| … | |
… | |
| 294 | * documentation is really unclear about whether it is any close () on |
294 | * documentation is really unclear about whether it is any close () on |
| 295 | * the master side or the last close () - i.e. a proper STREAMS dismantling |
295 | * the master side or the last close () - i.e. a proper STREAMS dismantling |
| 296 | * close () - on the master side which causes a hang up to be sent |
296 | * close () - on the master side which causes a hang up to be sent |
| 297 | * through - Geoff Wing |
297 | * through - Geoff Wing |
| 298 | */ |
298 | */ |
| 299 | # ifdef HAVE_ISASTREAM |
299 | # ifdef HAVE_ISASTREAM |
| 300 | if (isastream (fd_tty) == 1) |
300 | if (isastream (fd_tty) == 1) |
| 301 | # endif |
301 | # endif |
| 302 | { |
302 | { |
| 303 | ioctl (fd_tty, I_PUSH, "ptem"); |
303 | ioctl (fd_tty, I_PUSH, "ptem"); |
| 304 | ioctl (fd_tty, I_PUSH, "ldterm"); |
304 | ioctl (fd_tty, I_PUSH, "ldterm"); |
| 305 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
305 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
| 306 | } |
306 | } |
| 307 | # endif |
307 | #endif |
| 308 | |
308 | |
| 309 | ioctl (fd_tty, TIOCSCTTY, NULL); |
309 | ioctl (fd_tty, TIOCSCTTY, NULL); |
| 310 | |
310 | |
| 311 | int fd = open ("/dev/tty", O_WRONLY); |
311 | int fd = open ("/dev/tty", O_WRONLY); |
| 312 | if (fd < 0) |
312 | if (fd < 0) |
| … | |
… | |
| 636 | close (sv[1]); |
636 | close (sv[1]); |
| 637 | fcntl (sock_fd, F_SETFD, FD_CLOEXEC); |
637 | fcntl (sock_fd, F_SETFD, FD_CLOEXEC); |
| 638 | } |
638 | } |
| 639 | else |
639 | else |
| 640 | { |
640 | { |
| 641 | setgid (getegid ()); |
|
|
| 642 | setuid (geteuid ()); |
|
|
| 643 | |
|
|
| 644 | // server, pty-helper |
641 | // server, pty-helper |
| 645 | sock_fd = sv[1]; |
642 | sock_fd = sv[1]; |
| 646 | |
643 | |
| 647 | for (int fd = 0; fd < 1023; fd++) |
644 | for (int fd = 0; fd < 1023; fd++) |
| 648 | if (fd != sock_fd && fd != 1) |
645 | if (fd != sock_fd) |
| 649 | close (fd); |
646 | close (fd); |
| 650 | |
647 | |
| 651 | serve (); |
648 | serve (); |
| 652 | _exit (EXIT_SUCCESS); |
649 | _exit (EXIT_SUCCESS); |
| 653 | } |
650 | } |
