Line discipline module now uses dynamically allocated data. Also
[u/mdw/putty] / terminal.c
index 5a6d50a..0cbf918 100644 (file)
@@ -241,7 +241,8 @@ void term_seen_key_event(Terminal *term)
 void term_pwron(Terminal *term)
 {
     power_on(term);
-    ldisc_send(NULL, 0, 0);           /* cause ldisc to notice changes */
+    if (term->ldisc)                  /* cause ldisc to notice changes */
+       ldisc_send(term->ldisc, NULL, 0, 0);
     fix_cpos;
     term->disptop = 0;
     deselect(term);
@@ -309,7 +310,7 @@ Terminal *term_init(void)
     term->vt52_mode = FALSE;
     term->cr_lf_return = FALSE;
     term->seen_disp_event = FALSE;
-    term->xterm_mouse = FALSE;
+    term->xterm_mouse = term->mouse_is_down = FALSE;
     term->reset_132 = FALSE;
     term->blinker = term->tblinker = 0;
     term->has_focus = 1;
@@ -915,7 +916,8 @@ static void toggle_mode(Terminal *term, int mode, int query, int state)
            break;
          case 10:                     /* set local edit mode */
            term->term_editing = state;
-           ldisc_send(NULL, 0, 0);    /* cause ldisc to notice changes */
+           if (term->ldisc)           /* cause ldisc to notice changes */
+               ldisc_send(term->ldisc, NULL, 0, 0);
            break;
          case 25:                     /* enable/disable cursor */
            compatibility2(OTHER, VT220);
@@ -965,7 +967,8 @@ static void toggle_mode(Terminal *term, int mode, int query, int state)
            break;
          case 12:                     /* set echo mode */
            term->term_echoing = !state;
-           ldisc_send(NULL, 0, 0);    /* cause ldisc to notice changes */
+           if (term->ldisc)           /* cause ldisc to notice changes */
+               ldisc_send(term->ldisc, NULL, 0, 0);
            break;
          case 20:                     /* Return sends ... */
            term->cr_lf_return = state;
@@ -1288,7 +1291,7 @@ void term_out(Terminal *term)
                 * An xterm returns "xterm" (5 characters)
                 */
                compatibility(ANSIMIN);
-               {
+               if (term->ldisc) {
                    char abuf[256], *s, *d;
                    int state = 0;
                    for (s = cfg.answerback, d = abuf; *s; s++) {
@@ -1306,7 +1309,8 @@ void term_out(Terminal *term)
                        } else
                            *d++ = *s;
                    }
-                   lpage_send(DEFAULT_CODEPAGE, abuf, d - abuf, 0);
+                   lpage_send(term->ldisc, DEFAULT_CODEPAGE,
+                              abuf, d - abuf, 0);
                }
                break;
              case '\007':
@@ -1617,12 +1621,15 @@ void term_out(Terminal *term)
                    break;
                  case 'Z':            /* terminal type query */
                    compatibility(VT100);
-                   ldisc_send(term->id_string, strlen(term->id_string), 0);
+                   if (term->ldisc)
+                       ldisc_send(term->ldisc, term->id_string,
+                                  strlen(term->id_string), 0);
                    break;
                  case 'c':            /* restore power-on settings */
                    compatibility(VT100);
                    power_on(term);
-                   ldisc_send(NULL, 0, 0);/* cause ldisc to notice changes */
+                   if (term->ldisc)   /* cause ldisc to notice changes */
+                       ldisc_send(term->ldisc, NULL, 0, 0);
                    if (term->reset_132) {
                        if (!cfg.no_remote_resize)
                            request_resize(80, term->rows);
@@ -1783,7 +1790,8 @@ void term_out(Terminal *term)
                        compatibility(OTHER);
                        /* this reports xterm version 136 so that VIM can
                           use the drag messages from the mouse reporting */
-                       ldisc_send("\033[>0;136;0c", 11, 0);
+                       if (term->ldisc)
+                           ldisc_send(term->ldisc, "\033[>0;136;0c", 11, 0);
                        break;
                      case 'a':       /* move right N cols */
                        compatibility(ANSI);
@@ -1885,17 +1893,20 @@ void term_out(Terminal *term)
                      case 'c':       /* terminal type query */
                        compatibility(VT100);
                        /* This is the response for a VT102 */
-                       ldisc_send(term->id_string,
-                                  strlen(term->id_string), 0);
+                       if (term->ldisc)
+                           ldisc_send(term->ldisc, term->id_string,
+                                      strlen(term->id_string), 0);
                        break;
                      case 'n':       /* cursor position query */
-                       if (term->esc_args[0] == 6) {
-                           char buf[32];
-                           sprintf(buf, "\033[%d;%dR", term->curs.y + 1,
-                                   term->curs.x + 1);
-                           ldisc_send(buf, strlen(buf), 0);
-                       } else if (term->esc_args[0] == 5) {
-                           ldisc_send("\033[0n", 4, 0);
+                       if (term->ldisc) {
+                           if (term->esc_args[0] == 6) {
+                               char buf[32];
+                               sprintf(buf, "\033[%d;%dR", term->curs.y + 1,
+                                       term->curs.x + 1);
+                               ldisc_send(term->ldisc, buf, strlen(buf), 0);
+                           } else if (term->esc_args[0] == 5) {
+                               ldisc_send(term->ldisc, "\033[0n", 4, 0);
+                           }
                        }
                        break;
                      case 'h':       /* toggle modes to high */
@@ -2175,23 +2186,31 @@ void term_out(Terminal *term)
                                               TRUE : FALSE);
                                break;
                              case 11:
-                               ldisc_send(is_iconic() ? "\033[1t" : "\033[2t",
-                                          4, 0);
+                               if (term->ldisc)
+                                   ldisc_send(term->ldisc,
+                                              is_iconic() ? "\033[1t" :
+                                              "\033[2t", 4, 0);
                                break;
                              case 13:
-                               get_window_pos(&x, &y);
-                               len = sprintf(buf, "\033[3;%d;%dt", x, y);
-                               ldisc_send(buf, len, 0);
+                               if (term->ldisc) {
+                                   get_window_pos(&x, &y);
+                                   len = sprintf(buf, "\033[3;%d;%dt", x, y);
+                                   ldisc_send(term->ldisc, buf, len, 0);
+                               }
                                break;
                              case 14:
-                               get_window_pixels(&x, &y);
-                               len = sprintf(buf, "\033[4;%d;%dt", x, y);
-                               ldisc_send(buf, len, 0);
+                               if (term->ldisc) {
+                                   get_window_pixels(&x, &y);
+                                   len = sprintf(buf, "\033[4;%d;%dt", x, y);
+                                   ldisc_send(term->ldisc, buf, len, 0);
+                               }
                                break;
                              case 18:
-                               len = sprintf(buf, "\033[8;%d;%dt",
-                                             term->rows, term->cols);
-                               ldisc_send(buf, len, 0);
+                               if (term->ldisc) {
+                                   len = sprintf(buf, "\033[8;%d;%dt",
+                                                 term->rows, term->cols);
+                                   ldisc_send(term->ldisc, buf, len, 0);
+                               }
                                break;
                              case 19:
                                /*
@@ -2211,18 +2230,22 @@ void term_out(Terminal *term)
                                 */
                                break;
                              case 20:
-                               p = get_window_title(TRUE);
-                               len = strlen(p);
-                               ldisc_send("\033]L", 3, 0);
-                               ldisc_send(p, len, 0);
-                               ldisc_send("\033\\", 2, 0);
+                               if (term->ldisc) {
+                                   p = get_window_title(TRUE);
+                                   len = strlen(p);
+                                   ldisc_send(term->ldisc, "\033]L", 3, 0);
+                                   ldisc_send(term->ldisc, p, len, 0);
+                                   ldisc_send(term->ldisc, "\033\\", 2, 0);
+                               }
                                break;
                              case 21:
-                               p = get_window_title(FALSE);
-                               len = strlen(p);
-                               ldisc_send("\033]l", 3, 0);
-                               ldisc_send(p, len, 0);
-                               ldisc_send("\033\\", 2, 0);
+                               if (term->ldisc) {
+                                   p = get_window_title(FALSE);
+                                   len = strlen(p);
+                                   ldisc_send(term->ldisc, "\033]l", 3, 0);
+                                   ldisc_send(term->ldisc, p, len, 0);
+                                   ldisc_send(term->ldisc, "\033\\", 2, 0);
+                               }
                                break;
                            }
                        }
@@ -2290,13 +2313,13 @@ void term_out(Terminal *term)
                        break;
                      case 'x':       /* report terminal characteristics */
                        compatibility(VT100);
-                       {
+                       if (term->ldisc) {
                            char buf[32];
                            int i = def(term->esc_args[0], 0);
                            if (i == 0 || i == 1) {
                                strcpy(buf, "\033[2;1;1;112;112;1;0x");
                                buf[2] += i;
-                               ldisc_send(buf, 20, 0);
+                               ldisc_send(term->ldisc, buf, 20, 0);
                            }
                        }
                        break;
@@ -2620,7 +2643,8 @@ void term_out(Terminal *term)
                    term->termstate = VT52_Y1;
                    break;
                  case 'Z':
-                   ldisc_send("\033/Z", 3, 0);
+                   if (term->ldisc)
+                       ldisc_send(term->ldisc, "\033/Z", 3, 0);
                    break;
                  case '=':
                    term->app_keypad_keys = TRUE;
@@ -3281,9 +3305,10 @@ void term_copyall(Terminal *term)
  */
 static int wordtype(Terminal *term, int uc)
 {
-    static struct {
+    struct ucsword {
        int start, end, ctype;
-    } *wptr, ucs_words[] = {
+    };
+    static const struct ucsword ucs_words[] = {
        {
        128, 160, 0}, {
        161, 191, 1}, {
@@ -3347,6 +3372,7 @@ static int wordtype(Terminal *term, int uc)
        {
        0, 0, 0}
     };
+    const struct ucsword *wptr;
 
     uc &= (CSET_MASK | CHAR_MASK);
 
@@ -3524,7 +3550,8 @@ void term_do_paste(Terminal *term)
 
         /* Assume a small paste will be OK in one go. */
         if (term->paste_len < 256) {
-            luni_send(term->paste_buffer, term->paste_len, 0);
+            if (term->ldisc)
+               luni_send(term->ldisc, term->paste_buffer, term->paste_len, 0);
             if (term->paste_buffer)
                 sfree(term->paste_buffer);
             term->paste_buffer = 0;
@@ -3573,52 +3600,54 @@ void term_mouse(Terminal *term, Mouse_Button b, Mouse_Action a, int x, int y,
     if (raw_mouse) {
        int encstate = 0, r, c;
        char abuf[16];
-       static int is_down = 0;
 
-       switch (b) {
-         case MBT_LEFT:
-           encstate = 0x20;           /* left button down */
-           break;
-         case MBT_MIDDLE:
-           encstate = 0x21;
-           break;
-         case MBT_RIGHT:
-           encstate = 0x22;
-           break;
-         case MBT_WHEEL_UP:
-           encstate = 0x60;
-           break;
-         case MBT_WHEEL_DOWN:
-           encstate = 0x61;
-           break;
-         default: break;              /* placate gcc warning about enum use */
-       }
-       switch (a) {
-         case MA_DRAG:
-           if (term->xterm_mouse == 1)
-               return;
-           encstate += 0x20;
-           break;
-         case MA_RELEASE:
-           encstate = 0x23;
-           is_down = 0;
-           break;
-         case MA_CLICK:
-           if (is_down == b)
-               return;
-           is_down = b;
-           break;
-         default: break;              /* placate gcc warning about enum use */
+       if (term->ldisc) {
+
+           switch (b) {
+             case MBT_LEFT:
+               encstate = 0x20;               /* left button down */
+               break;
+             case MBT_MIDDLE:
+               encstate = 0x21;
+               break;
+             case MBT_RIGHT:
+               encstate = 0x22;
+               break;
+             case MBT_WHEEL_UP:
+               encstate = 0x60;
+               break;
+             case MBT_WHEEL_DOWN:
+               encstate = 0x61;
+               break;
+             default: break;          /* placate gcc warning about enum use */
+           }
+           switch (a) {
+             case MA_DRAG:
+               if (term->xterm_mouse == 1)
+                   return;
+               encstate += 0x20;
+               break;
+             case MA_RELEASE:
+               encstate = 0x23;
+               term->mouse_is_down = 0;
+               break;
+             case MA_CLICK:
+               if (term->mouse_is_down == b)
+                   return;
+               term->mouse_is_down = b;
+               break;
+             default: break;          /* placate gcc warning about enum use */
+           }
+           if (shift)
+               encstate += 0x04;
+           if (ctrl)
+               encstate += 0x10;
+           r = y + 33;
+           c = x + 33;
+
+           sprintf(abuf, "\033[M%c%c%c", encstate, c, r);
+           ldisc_send(term->ldisc, abuf, 6, 0);
        }
-       if (shift)
-           encstate += 0x04;
-       if (ctrl)
-           encstate += 0x10;
-       r = y + 33;
-       c = x + 33;
-
-       sprintf(abuf, "\033[M%c%c%c", encstate, c, r);
-       ldisc_send(abuf, 6, 0);
        return;
     }
 
@@ -3775,7 +3804,8 @@ void term_paste(Terminal *term)
            if (term->paste_buffer[term->paste_pos + n++] == '\r')
                break;
        }
-       luni_send(term->paste_buffer + term->paste_pos, n, 0);
+       if (term->ldisc)
+           luni_send(term->ldisc, term->paste_buffer + term->paste_pos, n, 0);
        term->paste_pos += n;
 
        if (term->paste_pos < term->paste_len) {