BSD 4_4_Lite2 release

[unix-history] / usr / src / usr.bin / telnet / terminal.c

diff --git a/usr/src/usr.bin/telnet/terminal.c b/usr/src/usr.bin/telnet/terminal.c
index 2b935bd..b5ceeda 100644 (file)
--- a/usr/src/usr.bin/telnet/terminal.c
+++ b/usr/src/usr.bin/telnet/terminal.c
@@ -1,22 +1,38 @@
 /*
 /*

- * Copyright (c) 1988 Regents of the University of California.
- * All rights reserved.
+ * Copyright (c) 1988, 1990, 1993
+ *     The Regents of the University of California.  All rights reserved.

  *
  *

- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley.  The name of the
- * University may not 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 MERCHANTIBILITY 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.
+ *
+ * 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.

  */
 
 #ifndef lint
  */
 
 #ifndef lint

-static char sccsid[] = "@(#)terminal.c 1.13 (Berkeley) %G%";
+static char sccsid[] = "@(#)terminal.c 8.2 (Berkeley) 2/16/95";

 #endif /* not lint */
 
 #include <arpa/telnet.h>
 #endif /* not lint */
 
 #include <arpa/telnet.h>


@@ -27,24 +43,52 @@ static char sccsid[] = "@(#)terminal.c      1.13 (Berkeley) %G%";
 #include "externs.h"
 #include "types.h"
 
 #include "externs.h"
 #include "types.h"
 

-Ring   ttyoring, ttyiring;
-char   ttyobuf[2*BUFSIZ], ttyibuf[BUFSIZ];
-
-char
-    termEofChar,
-    termEraseChar,
-    termFlushChar,
-    termIntChar,
-    termKillChar,
-#if    defined(MSDOS)
-    termLiteralNextChar,
-#endif /* defined(MSDOS) */
-    termQuitChar;
+Ring           ttyoring, ttyiring;
+unsigned char  ttyobuf[2*BUFSIZ], ttyibuf[BUFSIZ];
+
+int termdata;                  /* Debugging flag */
+
+#ifdef USE_TERMIO
+# ifndef VDISCARD
+cc_t termFlushChar;
+# endif
+# ifndef VLNEXT
+cc_t termLiteralNextChar;
+# endif
+# ifndef VSUSP
+cc_t termSuspChar;
+# endif
+# ifndef VWERASE
+cc_t termWerasChar;
+# endif
+# ifndef VREPRINT
+cc_t termRprntChar;
+# endif
+# ifndef VSTART
+cc_t termStartChar;
+# endif
+# ifndef VSTOP
+cc_t termStopChar;
+# endif
+# ifndef VEOL
+cc_t termForw1Char;
+# endif
+# ifndef VEOL2
+cc_t termForw2Char;
+# endif
+# ifndef VSTATUS
+cc_t termAytChar;
+# endif
+#else
+cc_t termForw2Char;
+cc_t termAytChar;
+#endif

 
 /*
  * initialize the terminal data structures.
  */
 
 
 /*
  * initialize the terminal data structures.
  */
 

+    void

 init_terminal()
 {
     if (ring_init(&ttyoring, ttyobuf, sizeof ttyobuf) != 1) {
 init_terminal()
 {
     if (ring_init(&ttyoring, ttyobuf, sizeof ttyobuf) != 1) {


@@ -60,14 +104,17 @@ init_terminal()
 /*
  *             Send as much data as possible to the terminal.
  *
 /*
  *             Send as much data as possible to the terminal.
  *

- *             The return value indicates whether we did any
- *     useful work.
+ *             Return value:
+ *                     -1: No useful work done, data waiting to go out.
+ *                      0: No data was waiting, so nothing was done.
+ *                      1: All waiting data was written out.
+ *                      n: All data - n was written out.

  */
 
 
  */
 
 

-int
+    int

 ttyflush(drop)
 ttyflush(drop)

-int drop;
+    int drop;

 {
     register int n, n0, n1;
 
 {
     register int n, n0, n1;
 


@@ -81,6 +128,9 @@ int drop;
        }
     }
     if (n > 0) {
        }
     }
     if (n > 0) {

+       if (termdata && n) {
+           Dump('>', ttyoring.consume, n);
+       }

        /*
         * If we wrote everything, and the full count is
         * larger than what we wrote, then write the
        /*
         * If we wrote everything, and the full count is
         * larger than what we wrote, then write the


@@ -90,11 +140,19 @@ int drop;
                n1 = n0 - n;
                if (!drop)
                        n1 = TerminalWrite(ttyoring.bottom, n1);
                n1 = n0 - n;
                if (!drop)
                        n1 = TerminalWrite(ttyoring.bottom, n1);

-               n += n1;
+               if (n1 > 0)
+                       n += n1;

        }
        ring_consumed(&ttyoring, n);
     }
        }
        ring_consumed(&ttyoring, n);
     }

-    return n > 0;
+    if (n < 0)
+       return -1;
+    if (n == n0) {
+       if (n0)
+           return -1;
+       return 0;
+    }
+    return n0 - n + 1;

 }
 
 \f
 }
 
 \f


@@ -104,37 +162,79 @@ int drop;
  */
 
 
  */
 
 

-int
+    int

 getconnmode()
 {
 getconnmode()
 {

-    static char newmode[16] =
-                       { 4, 5, 3, 3, 2, 2, 1, 1, 6, 6, 6, 6, 6, 6, 6, 6 };
-    int modeindex = 0;
-
-    if (dontlecho && (clocks.echotoggle > clocks.modenegotiated)) {
-       modeindex += 1;
-    }
-    if (hisopts[TELOPT_ECHO]) {
-       modeindex += 2;
-    }
-    if (hisopts[TELOPT_SGA]) {
-       modeindex += 4;
-    }
-    if (In3270) {
-       modeindex += 8;
+    extern int linemode;
+    int mode = 0;
+#ifdef KLUDGELINEMODE
+    extern int kludgelinemode;
+#endif
+
+    if (In3270)
+       return(MODE_FLOW);
+
+    if (my_want_state_is_dont(TELOPT_ECHO))
+       mode |= MODE_ECHO;
+
+    if (localflow)
+       mode |= MODE_FLOW;
+
+    if (my_want_state_is_will(TELOPT_BINARY))
+       mode |= MODE_INBIN;
+
+    if (his_want_state_is_will(TELOPT_BINARY))
+       mode |= MODE_OUTBIN;
+
+#ifdef KLUDGELINEMODE
+    if (kludgelinemode) {
+       if (my_want_state_is_dont(TELOPT_SGA)) {
+           mode |= (MODE_TRAPSIG|MODE_EDIT);
+           if (dontlecho && (clocks.echotoggle > clocks.modenegotiated)) {
+               mode &= ~MODE_ECHO;
+           }
+       }
+       return(mode);

     }
     }

-    return newmode[modeindex];
+#endif
+    if (my_want_state_is_will(TELOPT_LINEMODE))
+       mode |= linemode;
+    return(mode);

 }
 
 }
 

-void
-setconnmode()
+    void
+setconnmode(force)
+    int force;

 {
 {

-    TerminalNewMode(getconnmode());
+#ifdef ENCRYPTION
+    static int enc_passwd = 0;
+#endif /* ENCRYPTION */
+    register int newmode;
+
+    newmode = getconnmode()|(force?MODE_FORCE:0);
+
+    TerminalNewMode(newmode);
+
+#ifdef  ENCRYPTION
+    if ((newmode & (MODE_ECHO|MODE_EDIT)) == MODE_EDIT) {
+       if (my_want_state_is_will(TELOPT_ENCRYPT)
+                               && (enc_passwd == 0) && !encrypt_output) {
+           encrypt_request_start(0, 0);
+           enc_passwd = 1;
+       }
+    } else {
+       if (enc_passwd) {
+           encrypt_request_end();
+           enc_passwd = 0;
+       }
+    }
+#endif /* ENCRYPTION */
+

 }
 
 
 }
 
 

-void
+    void

 setcommandmode()
 {
 setcommandmode()
 {

-    TerminalNewMode(0);
+    TerminalNewMode(-1);

 }
 }