/* termios.cc: termios for WIN32. Copyright 1996, 1997, 1998, 2000, 2001, 2002 Red Hat, Inc. Written by Doug Evans and Steve Chamberlain of Cygnus Support dje@cygnus.com, sac@cygnus.com This file is part of Cygwin. This software is a copyrighted work licensed under the terms of the Cygwin license. Please consult the file "CYGWIN_LICENSE" for details. */ #include "winsup.h" #include #include #include "cygerrno.h" #include "security.h" #include "path.h" #include "fhandler.h" #include "dtable.h" #include "cygheap.h" #include "cygwin/version.h" #include "perprocess.h" #include "sigproc.h" #include /* tcsendbreak: POSIX 7.2.2.1 */ extern "C" int tcsendbreak (int fd, int duration) { int res = -1; cygheap_fdget cfd (fd); if (cfd < 0) goto out; if (!cfd->is_tty ()) set_errno (ENOTTY); else if ((res = cfd->bg_check (-SIGTTOU)) > bg_eof) res = cfd->tcsendbreak (duration); out: syscall_printf ("%d = tcsendbreak (%d, %d)", res, fd, duration); return res; } /* tcdrain: POSIX 7.2.2.1 */ extern "C" int tcdrain (int fd) { int res = -1; termios_printf ("tcdrain"); cygheap_fdget cfd (fd); if (cfd < 0) goto out; if (!cfd->is_tty ()) set_errno (ENOTTY); else if ((res = cfd->bg_check (-SIGTTOU)) > bg_eof) res = cfd->tcdrain (); out: syscall_printf ("%d = tcdrain (%d)", res, fd); return res; } /* tcflush: POSIX 7.2.2.1 */ extern "C" int tcflush (int fd, int queue) { int res = -1; cygheap_fdget cfd (fd); if (cfd < 0) goto out; if (!cfd->is_tty ()) set_errno (ENOTTY); else if (queue != TCIFLUSH && queue != TCOFLUSH && queue != TCIOFLUSH) set_errno (EINVAL); else if ((res = cfd->bg_check (-SIGTTOU)) > bg_eof) res = cfd->tcflush (queue); out: termios_printf ("%d = tcflush (%d, %d)", res, fd, queue); return res; } /* tcflow: POSIX 7.2.2.1 */ extern "C" int tcflow (int fd, int action) { int res = -1; cygheap_fdget cfd (fd); if (cfd < 0) goto out; if (!cfd->is_tty ()) set_errno (ENOTTY); else if ((res = cfd->bg_check (-SIGTTOU)) > bg_eof) res = cfd->tcflow (action); out: syscall_printf ("%d = tcflow (%d, %d)", res, fd, action); return res; } /* tcsetattr: POSIX96 7.2.1.1 */ extern "C" int tcsetattr (int fd, int a, const struct termios *t) { int res; t = __tonew_termios (t); int e = get_errno (); while (1) { res = -1; cygheap_fdget cfd (fd); if (cfd < 0) { e = get_errno (); break; } if (!cfd->is_tty ()) { e = ENOTTY; break; } res = cfd->bg_check (-SIGTTOU); switch (res) { case bg_eof: e = get_errno (); break; case bg_ok: if (cfd.isopen ()) res = cfd->tcsetattr (a, t); e = get_errno (); break; case bg_signalled: if (call_signal_handler_now ()) continue; res = -1; /* fall through intentionally */ default: e = get_errno (); break; } break; } set_errno (e); termios_printf ("iflag %p, oflag %p, cflag %p, lflag %p, VMIN %d, VTIME %d", t->c_iflag, t->c_oflag, t->c_cflag, t->c_lflag, t->c_cc[VMIN], t->c_cc[VTIME]); termios_printf ("%d = tcsetattr (%d, %d, %x)", res, fd, a, t); return res; } /* tcgetattr: POSIX 7.2.1.1 */ extern "C" int tcgetattr (int fd, struct termios *in_t) { int res = -1; struct termios *t = __makenew_termios (in_t); cygheap_fdget cfd (fd); if (cfd < 0) /* saw an error */; else if (!cfd->is_tty ()) set_errno (ENOTTY); else if ((res = cfd->tcgetattr (t)) == 0) (void) __toapp_termios (in_t, t); if (res) termios_printf ("%d = tcgetattr (%d, %p)", res, fd, in_t); else termios_printf ("iflag %x, oflag %x, cflag %x, lflag %x, VMIN %d, VTIME %d", t->c_iflag, t->c_oflag, t->c_cflag, t->c_lflag, t->c_cc[VMIN], t->c_cc[VTIME]); return res; } /* tcgetpgrp: POSIX 7.2.3.1 */ extern "C" int tcgetpgrp (int fd) { int res = -1; cygheap_fdget cfd (fd); if (cfd < 0) /* saw an error */; else if (!cfd->is_tty ()) set_errno (ENOTTY); else res = cfd->tcgetpgrp (); termios_printf ("%d = tcgetpgrp (%d)", res, fd); return res; } /* tcsetpgrp: POSIX 7.2.4.1 */ extern "C" int tcsetpgrp (int fd, pid_t pgid) { int res = -1; cygheap_fdget cfd (fd); if (cfd < 0) /* saw an error */; else if (!cfd->is_tty ()) set_errno (ENOTTY); else res = cfd->tcsetpgrp (pgid); termios_printf ("%d = tcsetpgrp (%d, %x)", res, fd, pgid); return res; } /* NIST PCTS requires not macro-only implementation */ #undef cfgetospeed #undef cfgetispeed #undef cfsetospeed #undef cfsetispeed /* cfgetospeed: POSIX96 7.1.3.1 */ extern "C" speed_t cfgetospeed (struct termios *tp) { return __tonew_termios (tp)->c_ospeed; } /* cfgetispeed: POSIX96 7.1.3.1 */ extern "C" speed_t cfgetispeed (struct termios *tp) { return __tonew_termios (tp)->c_ispeed; } static inline int setspeed (speed_t &set_speed, speed_t from_speed) { int res; switch (from_speed) { case B0: case B50: case B75: case B110: case B134: case B150: case B200: case B300: case B600: case B1200: case B1800: case B2400: case B4800: case B9600: case B19200: case B38400: case B57600: case B115200: case B128000: case B230400: case B256000: set_speed = from_speed; res = 0; break; default: set_errno (EINVAL); res = -1; break; } return res; } /* cfsetospeed: POSIX96 7.1.3.1 */ extern "C" int cfsetospeed (struct termios *in_tp, speed_t speed) { struct termios *tp = __tonew_termios (in_tp); int res = setspeed (tp->c_ospeed, speed); (void) __toapp_termios (in_tp, tp); return res; } /* cfsetispeed: POSIX96 7.1.3.1 */ extern "C" int cfsetispeed (struct termios *in_tp, speed_t speed) { struct termios *tp = __tonew_termios (in_tp); int res = setspeed (tp->c_ispeed, speed); (void) __toapp_termios (in_tp, tp); return res; }