Refactored IPV4/IPV6 FTP connection setup code
[midnight-commander.git] / lib / tty / win.c
blob0a31bc93aeba584b1102885286ccf2299f39897c
1 /* Terminal management xterm and rxvt support
2 Copyright (C) 1995, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
3 2007, 2009 Free Software Foundation, Inc.
5 Written by:
6 Andrew Borodin <aborodin@vmail.ru>, 2009.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
22 /** \file win.c
23 * \brief Source: Terminal management xterm and rxvt support
26 #include <config.h>
28 #include <stdio.h>
29 #include <stdlib.h>
30 #include <string.h>
31 #include <string.h>
32 #include <sys/types.h>
33 #include <unistd.h>
35 #include "lib/global.h"
36 #include "tty.h" /* tty_gotoyx, tty_print_char */
37 #include "win.h"
38 #include "src/consaver/cons.saver.h" /* console_flag */
40 /*** global variables **************************************************/
42 /* This flag is set by xterm detection routine in function main() */
43 /* It is used by function view_other_cmd() */
44 int xterm_flag = 0;
46 extern int keybar_visible;
48 /*** file scope macro definitions **************************************/
50 /*** file scope type declarations **************************************/
52 /*** file scope variables **********************************************/
54 static gboolean rxvt_extensions = FALSE;
56 /*** file scope functions **********************************************/
58 /* my own wierd protocol base 16 - paul */
59 static int
60 rxvt_getc (void)
62 int r;
63 unsigned char c;
65 while (read (0, &c, 1) != 1);
66 if (c == '\n')
67 return -1;
68 r = (c - 'A') * 16;
69 while (read (0, &c, 1) != 1);
70 r += (c - 'A');
71 return r;
74 static int
75 anything_ready (void)
77 fd_set fds;
78 struct timeval tv;
80 FD_ZERO (&fds);
81 FD_SET (0, &fds);
82 tv.tv_sec = 0;
83 tv.tv_usec = 0;
84 return select (1, &fds, 0, 0, &tv);
87 /*** public functions **************************************************/
89 void
90 do_enter_ca_mode (void)
92 if (xterm_flag) {
93 fprintf (stdout, /* ESC_STR ")0" */ ESC_STR "7" ESC_STR "[?47h");
94 fflush (stdout);
98 void
99 do_exit_ca_mode (void)
101 if (xterm_flag) {
102 fprintf (stdout, ESC_STR "[?47l" ESC_STR "8" ESC_STR "[m");
103 fflush (stdout);
107 void
108 show_rxvt_contents (int starty, unsigned char y1, unsigned char y2)
110 unsigned char *k;
111 int bytes, i, j, cols = 0;
113 y1 += (keybar_visible != 0); /* i don't knwo why we need this - paul */
114 y2 += (keybar_visible != 0);
115 while (anything_ready ())
116 tty_lowlevel_getch ();
118 /* my own wierd protocol base 26 - paul */
119 printf ("\033CL%c%c%c%c\n", (y1 / 26) + 'A', (y1 % 26) + 'A', (y2 / 26) + 'A', (y2 % 26) + 'A');
121 bytes = (y2 - y1) * (COLS + 1) + 1; /* *should* be the number of bytes read */
122 j = 0;
123 k = g_malloc (bytes);
124 for (;;) {
125 int c;
126 c = rxvt_getc ();
127 if (c < 0)
128 break;
129 if (j < bytes)
130 k[j++] = c;
131 for (cols = 1;; cols++) {
132 c = rxvt_getc ();
133 if (c < 0)
134 break;
135 if (j < bytes)
136 k[j++] = c;
139 for (i = 0; i < j; i++) {
140 if ((i % cols) == 0)
141 tty_gotoyx (starty + (i / cols), 0);
142 tty_print_char (is_printable (k[i]) ? k[i] : ' ');
144 g_free (k);
147 gboolean
148 look_for_rxvt_extensions (void)
150 static gboolean been_called = FALSE;
152 if (!been_called) {
153 const char *e = getenv ("RXVT_EXT");
154 rxvt_extensions = ((e != NULL) && (strcmp (e, "1.0") == 0));
155 been_called = TRUE;
158 if (rxvt_extensions)
159 console_flag = 4;
161 return rxvt_extensions;