BSD 4_4 release

[unix-history] / usr / src / usr.bin / window / tt.h

diff --git a/usr/src/usr.bin/window/tt.h b/usr/src/usr.bin/window/tt.h
index 4cccdd4..bd19bb3 100644 (file)
--- a/usr/src/usr.bin/window/tt.h
+++ b/usr/src/usr.bin/window/tt.h
@@ -1,25 +1,39 @@
 /*
 /*

- * Copyright (c) 1983 Regents of the University of California.
- * All rights reserved.
+ * Copyright (c) 1983, 1993
+ *     The Regents of the University of California.  All rights reserved.

  *
  * This code is derived from software contributed to Berkeley by
  * Edward Wang at The University of California, Berkeley.
  *
  *
  * This code is derived from software contributed to Berkeley by
  * Edward Wang at The University of California, Berkeley.
  *

- * Redistribution and use in source and binary forms are permitted provided
- * that: (1) source distributions retain this entire copyright notice and
- * comment, and (2) distributions including binaries display the following
- * acknowledgement:  ``This product includes software developed by the
- * University of California, Berkeley and its contributors'' in the
- * documentation or other materials provided with the distribution and in
- * all advertising materials mentioning features or use of this software.
- * Neither the name of the University nor the names of its contributors may
- * be used to endorse or promote products derived from this software without
- * specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the University of
+ *     California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.

  *
  *

- *     @(#)tt.h        3.27 (Berkeley) 6/6/90
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *     @(#)tt.h        8.1 (Berkeley) 6/6/93

  */
 
 /*
  */
 
 /*


@@ -28,6 +42,7 @@
 struct tt {
                /* startup and cleanup */
        int (*tt_start)();
 struct tt {
                /* startup and cleanup */
        int (*tt_start)();

+       int (*tt_reset)();

        int (*tt_end)();
 
                /* terminal functions */
        int (*tt_end)();
 
                /* terminal functions */


@@ -48,6 +63,10 @@ struct tt {
        int (*tt_setmodes)();           /* set display modes */
        int (*tt_set_token)();          /* define a token */
        int (*tt_put_token)();          /* refer to a defined token */
        int (*tt_setmodes)();           /* set display modes */
        int (*tt_set_token)();          /* define a token */
        int (*tt_put_token)();          /* refer to a defined token */

+       int (*tt_compress)();           /* begin, end compression */
+       int (*tt_checksum)();           /* compute checksum */
+       int (*tt_checkpoint)();         /* checkpoint protocol */
+       int (*tt_rint)();               /* input processing */

 
                /* internal variables */
        char tt_modes;                  /* the current display modes */
 
                /* internal variables */
        char tt_modes;                  /* the current display modes */


@@ -70,11 +89,12 @@ struct tt {
        int tt_token_max;               /* maximum token size */
        int tt_set_token_cost;          /* cost in addition to string */
        int tt_put_token_cost;          /* constant cost */
        int tt_token_max;               /* maximum token size */
        int tt_set_token_cost;          /* cost in addition to string */
        int tt_put_token_cost;          /* constant cost */

+       int tt_ack;                     /* checkpoint ack-nack flag */

 
                /* the frame characters */
        short *tt_frame;
 
 
                /* the frame characters */
        short *tt_frame;
 

-               /* the output routine */
+               /* ttflush() hook */

        int (*tt_flush)();
 };
 struct tt tt;
        int (*tt_flush)();
 };
 struct tt tt;


@@ -123,7 +143,7 @@ char *tt_ob;
 char *tt_obp;
 char *tt_obe;
 #define ttputc(c)      (tt_obp < tt_obe ? (*tt_obp++ = (c)) \
 char *tt_obp;
 char *tt_obe;
 #define ttputc(c)      (tt_obp < tt_obe ? (*tt_obp++ = (c)) \

-                               : ((*tt.tt_flush)(), *tt_obp++ = (c)))
+                               : (ttflush(), *tt_obp++ = (c)))

 
 /*
  * Convenience macros for the drivers
 
 /*
  * Convenience macros for the drivers