add the tcsendbreak, tcdrain, tcflush, and tcflow functions

SCCS-vsn: lib/libc/gen/termios.c 5.6

diff --git a/usr/src/lib/libc/gen/termios.c b/usr/src/lib/libc/gen/termios.c
index 6e98543..4c24de0 100644 (file)
--- a/usr/src/lib/libc/gen/termios.c
+++ b/usr/src/lib/libc/gen/termios.c
@@ -6,13 +6,16 @@
  */
 
 #if defined(LIBC_SCCS) && !defined(lint)
  */
 
 #if defined(LIBC_SCCS) && !defined(lint)

-static char sccsid[] = "@(#)termios.c  5.5 (Berkeley) %G%";
+static char sccsid[] = "@(#)termios.c  5.6 (Berkeley) %G%";

 #endif /* LIBC_SCCS and not lint */
 
 #include <sys/types.h>
 #include <sys/errno.h>
 #include <sys/ioctl.h>
 #include <sys/tty.h>
 #endif /* LIBC_SCCS and not lint */
 
 #include <sys/types.h>
 #include <sys/errno.h>
 #include <sys/ioctl.h>
 #include <sys/tty.h>

+#define KERNEL /* XXX - FREAD and FWRITE was ifdef'd KERNEL*/
+#include <sys/fcntl.h>
+#undef KERNEL

 #include <termios.h>
 #include <stdio.h>
 #include <unistd.h>
 #include <termios.h>
 #include <stdio.h>
 #include <unistd.h>


@@ -55,6 +58,7 @@ tcsetpgrp(fd, pgrp)
        pid_t pgrp;
 #endif
 {
        pid_t pgrp;
 #endif
 {

+

        return(ioctl(fd, TIOCSPGRP, &pgrp));
 }
 
        return(ioctl(fd, TIOCSPGRP, &pgrp));
 }
 


@@ -65,6 +69,7 @@ tcgetpgrp(fd)
 
        if (ioctl(fd, TIOCGPGRP, &s) < 0)
                return((pid_t)-1);
 
        if (ioctl(fd, TIOCGPGRP, &s) < 0)
                return((pid_t)-1);

+

        return((pid_t)s);
 }
 
        return((pid_t)s);
 }
 


@@ -72,6 +77,7 @@ speed_t
 cfgetospeed(t)
        const struct termios *t;
 {
 cfgetospeed(t)
        const struct termios *t;
 {

+

        return(t->c_ospeed);
 }
 
        return(t->c_ospeed);
 }
 


@@ -79,6 +85,7 @@ speed_t
 cfgetispeed(t)
        const struct termios *t;
 {
 cfgetispeed(t)
        const struct termios *t;
 {

+

        return(t->c_ispeed);
 }
 
        return(t->c_ispeed);
 }
 


@@ -88,7 +95,8 @@ cfsetospeed(t, speed)
        speed_t speed;
 {
        t->c_ospeed = speed;
        speed_t speed;
 {
        t->c_ospeed = speed;

-       return 0;
+
+       return (0);

 }
 
 int
 }
 
 int


@@ -97,7 +105,8 @@ cfsetispeed(t, speed)
        speed_t speed;
 {
        t->c_ispeed = speed;
        speed_t speed;
 {
        t->c_ispeed = speed;

-       return 0;
+
+       return (0);

 }
 
 void
 }
 
 void


@@ -106,6 +115,8 @@ cfsetspeed(t, speed)
        speed_t speed;
 {
        t->c_ispeed = t->c_ospeed = speed;
        speed_t speed;
 {
        t->c_ispeed = t->c_ospeed = speed;

+
+       return (0)

 }
 
 /*
 }
 
 /*


@@ -124,3 +135,83 @@ cfmakeraw(t)
        t->c_cflag |= CS8;
        /* set MIN/TIME */
 }
        t->c_cflag |= CS8;
        /* set MIN/TIME */
 }

+
+tcsendbreak(fd, len)
+       int fd, len;
+{
+       struct timeval sleepytime;
+
+       sleepytime.tv_sec = 0;
+       sleepytime.tv_usec = 400000;
+       if (ioctl(fd, TIOCSBRK, 0) == -1)
+               return (-1);
+       select(0, 0, 0, 0, &sleepytime);
+       if (ioctl(fd, TIOCCBRK, 0) == -1)
+               return (-1);
+
+       return (0);
+}
+
+tcdrain(fd)
+       int fd;
+{
+       if (ioctl(fd, TIOCDRAIN, 0) == -1)
+               return (-1);
+
+       return (0);
+}
+
+tcflush(fd, which)
+       int fd, which;
+{
+       int com;
+
+       switch (which) {
+       case TCIFLUSH:
+               com = FREAD;
+               break;
+       case TCOFLUSH:
+               com = FWRITE;
+               break;
+       case TCIOFLUSH:
+               com = FREAD | FWRITE;
+               break;
+       default:
+               errno = EINVAL;
+               return (-1);
+       }
+       if (ioctl(fd, TIOCFLUSH, &com) == -1)
+               return (-1);
+
+       return (0);
+}
+
+tcflow(fd, action)
+       int fd, action;
+{
+       switch (action) {
+       case TCOOFF:
+               return (ioctl(fd, TIOCSTOP, 0));
+               break;
+       case TCOON:
+               return (ioctl(fd, TIOCSTART, 0));
+               break;
+       case TCIOFF:
+       case TCION: {           /* these posix functions are STUPID */
+               struct termios term;
+               char c;
+
+               if (tcgetattr(fd, &term) == -1);
+                       return (-1);
+               c = term.c_cc[action == TCIOFF ? VSTOP : VSTART];
+               if (c != _POSIX_VDISABLE && write(fd, &c, 1) == -1)
+                       return (-1);
+               break;
+       }
+       default:
+               errno = EINVAL;
+               return (-1);
+       }
+
+       return (0);
+}