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30 * Author: Thomas E. Dickey <dickey@clark.net> 1998
32 * $Id: ditto.c,v 1.14 2008/03/29 21:35:39 tom Exp $
34 * The program illustrates how to set up multiple screens from a single
35 * program. Invoke the program by specifying another terminal on the same
36 * machine by specifying its device, e.g.,
39 #include <test.priv.h>
53 ExitProgram(EXIT_FAILURE);
59 fprintf(stderr, "usage: ditto [terminal1 ...]\n");
60 ExitProgram(EXIT_FAILURE);
69 if (stat(path, &sb) < 0)
71 if ((sb.st_mode & S_IFMT) != S_IFCHR) {
75 fp = fopen(path, "r+");
78 printf("opened %s\n", path);
83 close_screen(SCREEN *sp GCC_UNUSED, void *arg GCC_UNUSED)
91 read_screen(SCREEN *sp GCC_UNUSED, void *arg GCC_UNUSED)
97 write_screen(SCREEN *sp GCC_UNUSED, void *arg GCC_UNUSED)
105 show_ditto(DITTO * data, int count, char *msg)
109 for (n = 0; n < count; n++) {
110 USING_SCREEN(data[n].screen, write_screen, (void *) msg);
115 main(int argc GCC_UNUSED,
116 char *argv[]GCC_UNUSED)
125 if ((data = (DITTO *) calloc((unsigned) argc, sizeof(DITTO))) == 0)
126 failed("calloc data");
128 data[0].input = stdin;
129 data[0].output = stdout;
130 for (j = 1; j < argc; j++) {
132 data[j].output = open_tty(argv[j]);
136 * If we got this far, we have open connection(s) to the terminal(s).
137 * Set up the screens.
139 for (j = 0; j < argc; j++) {
140 data[j].screen = newterm((char *) 0, /* assume $TERM is the same */
143 if (data[j].screen == 0)
147 scrollok(stdscr, TRUE);
148 nodelay(stdscr, TRUE);
152 * Loop, reading characters from any of the inputs and writing to all
155 for (count = 0;; ++count) {
158 int which = (count % argc);
161 ch = USING_SCREEN(data[which].screen, read_screen, 0);
168 sprintf(message, "from[%d:%d] '%c' (%#x)\n", count, which, ch, ch);
169 show_ditto(data, argc, message);
175 for (j = argc - 1; j >= 0; j--) {
176 USING_SCREEN(data[j].screen, close_screen, 0);
177 delscreen(data[j].screen);
179 ExitProgram(EXIT_SUCCESS);