summaryrefslogtreecommitdiffstats
path: root/mdk-stage1/slang/slutty.c
diff options
context:
space:
mode:
Diffstat (limited to 'mdk-stage1/slang/slutty.c')
-rw-r--r--mdk-stage1/slang/slutty.c596
1 files changed, 0 insertions, 596 deletions
diff --git a/mdk-stage1/slang/slutty.c b/mdk-stage1/slang/slutty.c
deleted file mode 100644
index 636c1bb90..000000000
--- a/mdk-stage1/slang/slutty.c
+++ /dev/null
@@ -1,596 +0,0 @@
-/* slutty.c --- Unix Low level terminal (tty) functions for S-Lang */
-/* Copyright (c) 1992, 1999, 2001 John E. Davis
- * This file is part of the S-Lang library.
- *
- * You may distribute under the terms of either the GNU General Public
- * License or the Perl Artistic License.
- */
-
-#include "slinclud.h"
-
-#include <signal.h>
-/* sequent support thanks to Kenneth Lorber <keni@oasys.dt.navy.mil> */
-/* SYSV (SYSV ISC R3.2 v3.0) provided by iain.lea@erlm.siemens.de */
-
-#if defined (_AIX) && !defined (_ALL_SOURCE)
-# define _ALL_SOURCE /* so NBBY is defined in <sys/types.h> */
-#endif
-
-#include <sys/time.h>
-#include <sys/types.h>
-
-#ifdef SYSV
-# include <fcntl.h>
-# ifndef CRAY
-# include <sys/termio.h>
-# include <sys/stream.h>
-# include <sys/ptem.h>
-# include <sys/tty.h>
-# endif
-#endif
-
-#ifdef __BEOS__
-/* Prototype for select */
-# include <net/socket.h>
-#endif
-
-#include <sys/file.h>
-
-#ifndef sun
-# include <sys/ioctl.h>
-#endif
-
-#ifdef __QNX__
-# include <sys/select.h>
-#endif
-
-#include <sys/stat.h>
-#include <errno.h>
-
-#if defined (_AIX) && !defined (FD_SET)
-# include <sys/select.h> /* for FD_ISSET, FD_SET, FD_ZERO */
-#endif
-
-#ifndef O_RDWR
-# include <fcntl.h>
-#endif
-
-#include "slang.h"
-#include "_slang.h"
-
-int SLang_TT_Read_FD = -1;
-int SLang_TT_Baud_Rate;
-
-#ifdef HAVE_TERMIOS_H
-# if !defined(HAVE_TCGETATTR) || !defined(HAVE_TCSETATTR)
-# undef HAVE_TERMIOS_H
-# endif
-#endif
-
-#ifndef HAVE_TERMIOS_H
-
-# if !defined(CBREAK) && defined(sun)
-# ifndef BSD_COMP
-# define BSD_COMP 1
-# endif
-# include <sys/ioctl.h>
-# endif
-
-typedef struct
- {
- struct tchars t;
- struct ltchars lt;
- struct sgttyb s;
- }
-TTY_Termio_Type;
-#else
-# include <termios.h>
-typedef struct termios TTY_Termio_Type;
-#endif
-
-static TTY_Termio_Type Old_TTY;
-
-#ifdef HAVE_TERMIOS_H
-typedef struct
-{
- unsigned int key;
- unsigned int value;
-} Baud_Rate_Type;
-
-static Baud_Rate_Type Baud_Rates [] =
-{
-#ifdef B0
- {B0, 0},
-#endif
-#ifdef B50
- {B50, 50},
-#endif
-#ifdef B75
- {B75, 75},
-#endif
-#ifdef B110
- {B110, 110},
-#endif
-#ifdef B134
- {B134, 134},
-#endif
-#ifdef B150
- {B150, 150},
-#endif
-#ifdef B200
- {B200, 200},
-#endif
-#ifdef B300
- {B300, 300},
-#endif
-#ifdef B600
- {B600, 600},
-#endif
-#ifdef B1200
- {B1200, 1200},
-#endif
-#ifdef B1800
- {B1800, 1800},
-#endif
-#ifdef B2400
- {B2400, 2400},
-#endif
-#ifdef B4800
- {B4800, 4800},
-#endif
-#ifdef B9600
- {B9600, 9600},
-#endif
-#ifdef B19200
- {B19200, 19200},
-#endif
-#ifdef B38400
- {B38400, 38400},
-#endif
-#ifdef B57600
- {B57600, 57600},
-#endif
-#ifdef B115200
- {B115200, 115200},
-#endif
-#ifdef B230400
- {B230400, 230400},
-#endif
- {0, 0}
-};
-
-static void
-set_baud_rate (TTY_Termio_Type *tty)
-{
-#ifdef HAVE_CFGETOSPEED
- unsigned int speed;
- Baud_Rate_Type *b, *bmax;
-
- if (SLang_TT_Baud_Rate)
- return; /* already set */
-
- speed = (unsigned int) cfgetospeed (tty);
-
- b = Baud_Rates;
- bmax = b + (sizeof (Baud_Rates)/sizeof(Baud_Rates[0]));
- while (b < bmax)
- {
- if (b->key == speed)
- {
- SLang_TT_Baud_Rate = b->value;
- return;
- }
- b++;
- }
-#else
- (void) tty;
-#endif
-}
-
-#endif /* HAVE_TERMIOS_H */
-
-#ifdef HAVE_TERMIOS_H
-# define GET_TERMIOS(fd, x) tcgetattr(fd, x)
-# define SET_TERMIOS(fd, x) tcsetattr(fd, TCSADRAIN, x)
-#else
-# ifdef TCGETS
-# define GET_TERMIOS(fd, x) ioctl(fd, TCGETS, x)
-# define SET_TERMIOS(fd, x) ioctl(fd, TCSETS, x)
-# else
-# define X(x,m) &(((TTY_Termio_Type *)(x))->m)
-# define GET_TERMIOS(fd, x) \
- ((ioctl(fd, TIOCGETC, X(x,t)) || \
- ioctl(fd, TIOCGLTC, X(x,lt)) || \
- ioctl(fd, TIOCGETP, X(x,s))) ? -1 : 0)
-# define SET_TERMIOS(fd, x) \
- ((ioctl(fd, TIOCSETC, X(x,t)) ||\
- ioctl(fd, TIOCSLTC, X(x,lt)) || \
- ioctl(fd, TIOCSETP, X(x,s))) ? -1 : 0)
-# endif
-#endif
-
-static int TTY_Inited = 0;
-static int TTY_Open = 0;
-
-#ifdef ultrix /* Ultrix gets _POSIX_VDISABLE wrong! */
-# define NULL_VALUE -1
-#else
-# ifdef _POSIX_VDISABLE
-# define NULL_VALUE _POSIX_VDISABLE
-# else
-# define NULL_VALUE 255
-# endif
-#endif
-
-int SLang_init_tty (int abort_char, int no_flow_control, int opost)
-{
- TTY_Termio_Type newtty;
-
- SLsig_block_signals ();
-
- if (TTY_Inited)
- {
- SLsig_unblock_signals ();
- return 0;
- }
-
- TTY_Open = 0;
-
- if ((SLang_TT_Read_FD == -1)
- || (1 != isatty (SLang_TT_Read_FD)))
- {
-#ifdef O_RDWR
-# ifndef __BEOS__ /* I have been told that BEOS will HANG if passed /dev/tty */
- if ((SLang_TT_Read_FD = open("/dev/tty", O_RDWR)) >= 0)
- {
- TTY_Open = 1;
- }
-# endif
-#endif
- if (TTY_Open == 0)
- {
- SLang_TT_Read_FD = fileno (stderr);
- if (1 != isatty (SLang_TT_Read_FD))
- {
- SLang_TT_Read_FD = fileno (stdin);
- if (1 != isatty (SLang_TT_Read_FD))
- {
- fprintf (stderr, "Failed to open terminal.");
- return -1;
- }
- }
- }
- }
-
- SLang_Abort_Char = abort_char;
-
- /* Some systems may not permit signals to be blocked. As a result, the
- * return code must be checked.
- */
- while (-1 == GET_TERMIOS(SLang_TT_Read_FD, &Old_TTY))
- {
- if (errno != EINTR)
- {
- SLsig_unblock_signals ();
- return -1;
- }
- }
-
- while (-1 == GET_TERMIOS(SLang_TT_Read_FD, &newtty))
- {
- if (errno != EINTR)
- {
- SLsig_unblock_signals ();
- return -1;
- }
- }
-
-#ifndef HAVE_TERMIOS_H
- newtty.s.sg_flags &= ~(ECHO);
- newtty.s.sg_flags &= ~(CRMOD);
- /* if (Flow_Control == 0) newtty.s.sg_flags &= ~IXON; */
- newtty.t.t_eofc = 1;
- if (abort_char == -1) SLang_Abort_Char = newtty.t.t_intrc;
- newtty.t.t_intrc = SLang_Abort_Char; /* ^G */
- newtty.t.t_quitc = 255;
- newtty.lt.t_suspc = 255; /* to ignore ^Z */
- newtty.lt.t_dsuspc = 255; /* to ignore ^Y */
- newtty.lt.t_lnextc = 255;
- newtty.s.sg_flags |= CBREAK; /* do I want cbreak or raw????? */
-#else
-
- /* get baud rate */
-
- newtty.c_iflag &= ~(ECHO | INLCR | ICRNL);
-#ifdef ISTRIP
- /* newtty.c_iflag &= ~ISTRIP; */
-#endif
- if (opost == 0) newtty.c_oflag &= ~OPOST;
-
- set_baud_rate (&newtty);
-
- if (no_flow_control) newtty.c_iflag &= ~IXON; else newtty.c_iflag |= IXON;
-
- newtty.c_cc[VEOF] = 1;
- newtty.c_cc[VMIN] = 1;
- newtty.c_cc[VTIME] = 0;
- newtty.c_lflag = ISIG | NOFLSH;
- if (abort_char == -1) SLang_Abort_Char = newtty.c_cc[VINTR];
- newtty.c_cc[VINTR] = SLang_Abort_Char; /* ^G */
- newtty.c_cc[VQUIT] = NULL_VALUE;
- newtty.c_cc[VSUSP] = NULL_VALUE; /* to ignore ^Z */
-#ifdef VDSUSP
- newtty.c_cc[VDSUSP] = NULL_VALUE; /* to ignore ^Y */
-#endif
-#ifdef VLNEXT
- newtty.c_cc[VLNEXT] = NULL_VALUE; /* to ignore ^V ? */
-#endif
-#ifdef VSWTCH
- newtty.c_cc[VSWTCH] = NULL_VALUE; /* to ignore who knows what */
-#endif
-#endif /* NOT HAVE_TERMIOS_H */
-
- while (-1 == SET_TERMIOS(SLang_TT_Read_FD, &newtty))
- {
- if (errno != EINTR)
- {
- SLsig_unblock_signals ();
- return -1;
- }
- }
-
- TTY_Inited = 1;
- SLsig_unblock_signals ();
- return 0;
-}
-
-void SLtty_set_suspend_state (int mode)
-{
- TTY_Termio_Type newtty;
-
- SLsig_block_signals ();
-
- if (TTY_Inited == 0)
- {
- SLsig_unblock_signals ();
- return;
- }
-
- while ((-1 == GET_TERMIOS (SLang_TT_Read_FD, &newtty))
- && (errno == EINTR))
- ;
-
-#ifndef HAVE_TERMIOS_H
- /* I do not know if all systems define the t_dsuspc field */
- if (mode == 0)
- {
- newtty.lt.t_suspc = 255;
- newtty.lt.t_dsuspc = 255;
- }
- else
- {
- newtty.lt.t_suspc = Old_TTY.lt.t_suspc;
- newtty.lt.t_dsuspc = Old_TTY.lt.t_dsuspc;
- }
-#else
- if (mode == 0)
- {
- newtty.c_cc[VSUSP] = NULL_VALUE;
-#ifdef VDSUSP
- newtty.c_cc[VDSUSP] = NULL_VALUE;
-#endif
- }
- else
- {
- newtty.c_cc[VSUSP] = Old_TTY.c_cc[VSUSP];
-#ifdef VDSUSP
- newtty.c_cc[VDSUSP] = Old_TTY.c_cc[VDSUSP];
-#endif
- }
-#endif
-
- while ((-1 == SET_TERMIOS (SLang_TT_Read_FD, &newtty))
- && (errno == EINTR))
- ;
-
- SLsig_unblock_signals ();
-}
-
-void SLang_reset_tty (void)
-{
- SLsig_block_signals ();
-
- if (TTY_Inited == 0)
- {
- SLsig_unblock_signals ();
- return;
- }
-
- while ((-1 == SET_TERMIOS(SLang_TT_Read_FD, &Old_TTY))
- && (errno == EINTR))
- ;
-
- if (TTY_Open)
- {
- while ((-1 == close (SLang_TT_Read_FD))
- && (errno == EINTR))
- ;
-
- TTY_Open = 0;
- SLang_TT_Read_FD = -1;
- }
-
- TTY_Inited = 0;
- SLsig_unblock_signals ();
-}
-
-static void default_sigint (int sig)
-{
- sig = errno; /* use parameter */
-
- SLKeyBoard_Quit = 1;
- if (SLang_Ignore_User_Abort == 0) SLang_Error = SL_USER_BREAK;
- SLsignal_intr (SIGINT, default_sigint);
- errno = sig;
-}
-
-int SLang_set_abort_signal (void (*hand)(int))
-{
- int save_errno = errno;
- SLSig_Fun_Type *f;
-
- if (hand == NULL) hand = default_sigint;
- f = SLsignal_intr (SIGINT, hand);
-
- errno = save_errno;
-
- if (f == (SLSig_Fun_Type *) SIG_ERR)
- return -1;
-
- return 0;
-}
-
-#ifndef FD_SET
-#define FD_SET(fd, tthis) *(tthis) = 1 << (fd)
-#define FD_ZERO(tthis) *(tthis) = 0
-#define FD_ISSET(fd, tthis) (*(tthis) & (1 << fd))
-typedef int fd_set;
-#endif
-
-static fd_set Read_FD_Set;
-
-/* HACK: If > 0, use 1/10 seconds. If < 0, use 1/1000 seconds */
-
-int _SLsys_input_pending(int tsecs)
-{
- struct timeval wait;
- long usecs, secs;
-
- if (TTY_Inited == 0) return -1;
-
- if (tsecs >= 0)
- {
- secs = tsecs / 10;
- usecs = (tsecs % 10) * 100000;
- }
- else
- {
- tsecs = -tsecs;
- secs = tsecs / 1000;
- usecs = (tsecs % 1000) * 1000;
- }
-
- wait.tv_sec = secs;
- wait.tv_usec = usecs;
-
- FD_ZERO(&Read_FD_Set);
- FD_SET(SLang_TT_Read_FD, &Read_FD_Set);
-
- return select(SLang_TT_Read_FD + 1, &Read_FD_Set, NULL, NULL, &wait);
-}
-
-int (*SLang_getkey_intr_hook) (void);
-
-static int handle_interrupt (void)
-{
- if (SLang_getkey_intr_hook != NULL)
- {
- int save_tty_fd = SLang_TT_Read_FD;
-
- if (-1 == (*SLang_getkey_intr_hook) ())
- return -1;
-
- if (save_tty_fd != SLang_TT_Read_FD)
- return -1;
- }
-
- return 0;
-}
-
-unsigned int _SLsys_getkey (void)
-{
- unsigned char c;
-
- if (TTY_Inited == 0)
- {
- int ic = fgetc (stdin);
- if (ic == EOF) return SLANG_GETKEY_ERROR;
- return (unsigned int) ic;
- }
-
- while (1)
- {
- int ret;
-
- if (SLKeyBoard_Quit)
- return SLang_Abort_Char;
-
- if (0 == (ret = _SLsys_input_pending (100)))
- continue;
-
- if (ret != -1)
- break;
-
- if (SLKeyBoard_Quit)
- return SLang_Abort_Char;
-
- if (errno == EINTR)
- {
- if (-1 == handle_interrupt ())
- return SLANG_GETKEY_ERROR;
-
- continue;
- }
-
- break; /* let read handle it */
- }
-
- while (1)
- {
- int status = read(SLang_TT_Read_FD, (char *) &c, 1);
-
- if (status > 0)
- break;
-
- if (status == 0)
- {
- /* We are at the end of a file. Let application handle it. */
- return SLANG_GETKEY_ERROR;
- }
-
- if (errno == EINTR)
- {
- if (-1 == handle_interrupt ())
- return SLANG_GETKEY_ERROR;
-
- if (SLKeyBoard_Quit)
- return SLang_Abort_Char;
-
- continue;
- }
-#ifdef EAGAIN
- if (errno == EAGAIN)
- {
- sleep (1);
- continue;
- }
-#endif
-#ifdef EWOULDBLOCK
- if (errno == EWOULDBLOCK)
- {
- sleep (1);
- continue;
- }
-#endif
-#ifdef EIO
- if (errno == EIO)
- {
- SLang_exit_error ("_SLsys_getkey: EIO error.");
- }
-#endif
- return SLANG_GETKEY_ERROR;
- }
-
- return((unsigned int) c);
-}
-
generated by cgit v1.2.1 (git 2.21.0) at 2024-11-11 01:09:05 +0000