BSD 4_4_Lite2 development

Work on file usr/src/contrib/nvi.1.43/PORT/machten.2.1.1/local/termios.c

Synthesized-from: CSRG/cd3/4.4BSD-Lite2

diff --git a/usr/src/contrib/nvi.1.43/PORT/machten.2.1.1/local/termios.c b/usr/src/contrib/nvi.1.43/PORT/machten.2.1.1/local/termios.c
new file mode 100644 (file)
index 0000000..3962980
--- /dev/null
+++ b/usr/src/contrib/nvi.1.43/PORT/machten.2.1.1/local/termios.c
@@ -0,0 +1,137 @@
+/*
+ * termios.c -- POSIX termios emulation using sgtty interface.
+ *
+ * This is not a complete implementation; only the basic
+ * functionality needed to support nvi is here (and I'm not
+ * even sure that's correct either).
+ */
+
+#include <termios.h>
+#include <unistd.h>
+
+
+int
+tcgetattr(fd, t)
+       int             fd;
+       struct termios  *t;
+{
+       if ((ioctl(fd, TIOCGETP, &t->__sg) < 0)
+           || (ioctl(fd, TIOCGETC, &t->__tc) < 0)
+#ifdef TIOCGLTC
+           || (ioctl(fd, TIOCGLTC, &t->__ltc) < 0)
+#endif
+          ) {
+               return(-1);
+       }
+
+       t->c_cc[VERASE]         = t->__sg.sg_erase;
+       t->c_cc[VKILL]          = t->__sg.sg_kill;
+       t->c_cc[VINTR]          = t->__tc.t_intrc;
+       t->c_cc[VQUIT]          = t->__tc.t_quitc;
+       t->c_cc[VSTART]         = t->__tc.t_startc;
+       t->c_cc[VSTOP]          = t->__tc.t_stopc;
+       t->c_cc[VEOF]           = t->__tc.t_eofc;
+       t->c_cc[VEOL]           = t->__tc.t_brkc;
+
+#ifdef TIOCGLTC
+       t->c_cc[VSUSP]          = t->__ltc.t_suspc;
+       t->c_cc[VDSUSP]         = t->__ltc.t_dsuspc;
+       t->c_cc[VREPRINT]       = t->__ltc.t_rprntc;
+       t->c_cc[VDISCARD]       = t->__ltc.t_flushc;
+       t->c_cc[VWERASE]        = t->__ltc.t_werasc;
+       t->c_cc[VLNEXT]         = t->__ltc.t_lnextc;
+#endif /* TIOCGLTC */
+
+       t->c_iflag = 0;
+       t->c_oflag = 0;
+       t->c_lflag = 0;
+       t->c_cflag = 0;
+
+       if (t->__sg.sg_flags & RAW) {
+               t->c_iflag &= ~(IGNBRK|BRKINT|PARMRK|INLCR|IGNCR|ICRNL|IXON);
+               t->c_oflag &= ~(OPOST);
+               t->c_lflag &= ~(_TERMIOS_ECHO|ECHONL|ICANON|ISIG|IEXTEN);
+               t->c_cflag |= CS8;
+               t->c_cflag &= ~(CSIZE | PARENB | PARODD);
+       } else if (t->__sg.sg_flags & CBREAK) {
+               t->c_lflag &= ~(ICANON);
+               t->c_lflag |= ISIG;
+               t->c_oflag |= OPOST;
+       } else {
+               t->c_lflag |= (ICANON | ISIG | IEXTEN);
+               t->c_oflag |= OPOST;
+       }
+
+       if (t->__sg.sg_flags & CRMOD) {
+               t->c_iflag |= ICRNL;
+               t->c_oflag |= (OPOST | ONLCR);
+       }
+
+       if (t->__sg.sg_flags & _SGTTY_ECHO) {
+               t->c_lflag |= _TERMIOS_ECHO;
+       }
+
+       return(0);
+}
+
+int
+tcsetattr(fd, act, t)
+       int             fd;
+       int             act;
+       struct termios  *t;
+{
+       t->__sg.sg_erase        = t->c_cc[VERASE];
+       t->__sg.sg_kill         = t->c_cc[VKILL];
+       t->__tc.t_intrc         = t->c_cc[VINTR];
+       t->__tc.t_quitc         = t->c_cc[VQUIT];
+       t->__tc.t_startc        = t->c_cc[VSTART];
+       t->__tc.t_stopc         = t->c_cc[VSTOP];
+       t->__tc.t_eofc          = t->c_cc[VEOF];
+       t->__tc.t_brkc          = t->c_cc[VEOL];
+
+#ifdef TIOCGLTC
+       t->__ltc.t_suspc        = t->c_cc[VSUSP];
+       t->__ltc.t_dsuspc       = t->c_cc[VDSUSP];
+       t->__ltc.t_rprntc       = t->c_cc[VREPRINT];
+       t->__ltc.t_flushc       = t->c_cc[VDISCARD];
+       t->__ltc.t_werasc       = t->c_cc[VWERASE];
+       t->__ltc.t_lnextc       = t->c_cc[VLNEXT];
+#endif /* TIOCGLTC */
+
+       t->__sg.sg_flags &= ~(RAW | CBREAK);    /* reset temporarily */
+
+       if ( !(t->c_lflag & ICANON) ) {
+               t->__sg.sg_flags |= CBREAK;
+       }
+
+       if (t->c_lflag & _TERMIOS_ECHO) {
+               t->__sg.sg_flags |= _SGTTY_ECHO;
+       } else {
+               t->__sg.sg_flags &= ~(_SGTTY_ECHO);
+       }
+
+       if (t->c_oflag & ONLCR) {
+               t->__sg.sg_flags |= CRMOD;
+       } else {
+               t->__sg.sg_flags &= ~(CRMOD);
+       }
+
+       if ((ioctl(fd, (act==TCSADRAIN ? TIOCSETP : TIOCSETN), &t->__sg) < 0)
+           || (ioctl(fd, TIOCSETC, &t->__tc) < 0)
+#ifdef TIOCGLTC
+           || (ioctl(fd, TIOCSLTC, &t->__ltc) < 0)
+#endif
+          ) {
+               return(-1);
+       }
+
+       return(0);
+}
+
+
+speed_t
+cfgetospeed(t)
+       struct termios  *t;
+{
+       return( t->__sg.sg_ospeed );
+}