/****************************************************************************
- * Copyright (c) 1998 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2007,2008 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
/*
* Author: Thomas E. Dickey <dickey@clark.net> 1998
*
- * $Id: ditto.c,v 1.3 1998/08/15 23:39:34 tom Exp $
+ * $Id: ditto.c,v 1.19 2008/04/12 23:37:32 tom Exp $
*
* The program illustrates how to set up multiple screens from a single
* program. Invoke the program by specifying another terminal on the same
#include <sys/stat.h>
#include <errno.h>
+#ifdef USE_XTERM_PTY
+#include USE_OPENPTY_HEADER
+#endif
+
typedef struct {
- FILE *input;
- FILE *output;
- SCREEN *screen;
+ FILE *input;
+ FILE *output;
+ SCREEN *screen;
} DITTO;
static void
failed(const char *s)
{
- perror(s);
- exit(EXIT_FAILURE);
+ perror(s);
+ ExitProgram(EXIT_FAILURE);
}
static void
usage(void)
{
- fprintf(stderr, "usage: ditto [terminal1 ...]\n");
- exit(EXIT_FAILURE);
+ fprintf(stderr, "usage: ditto [terminal1 ...]\n");
+ ExitProgram(EXIT_FAILURE);
}
static FILE *
open_tty(char *path)
{
- FILE *fp;
- struct stat sb;
-
- if (stat(path, &sb) < 0)
- failed(path);
- if ((sb.st_mode & S_IFMT) != S_IFCHR) {
- errno = ENOTTY;
- failed(path);
- }
- fp = fopen(path, "a+");
- if (fp == 0)
- failed(path);
- printf("opened %s\n", path);
- return fp;
+ FILE *fp;
+#ifdef USE_XTERM_PTY
+ int amaster;
+ int aslave;
+ char slave_name[1024];
+ char s_option[1024];
+ char *leaf;
+
+ if (openpty(&amaster, &aslave, slave_name, 0, 0) != 0)
+ failed("openpty");
+ if ((leaf = strrchr(slave_name, '/')) == 0) {
+ errno = EISDIR;
+ failed(slave_name);
+ }
+ sprintf(s_option, "-S%s/%d", slave_name, aslave);
+ if (fork()) {
+ execlp("xterm", "xterm", s_option, "-title", path, (char *) 0);
+ _exit(0);
+ }
+ fp = fdopen(amaster, "r+");
+#else
+ struct stat sb;
+
+ if (stat(path, &sb) < 0)
+ failed(path);
+ if ((sb.st_mode & S_IFMT) != S_IFCHR) {
+ errno = ENOTTY;
+ failed(path);
+ }
+ fp = fopen(path, "r+");
+ if (fp == 0)
+ failed(path);
+ printf("opened %s\n", path);
+#endif
+ return fp;
+}
+
+static int
+close_screen(SCREEN *sp GCC_UNUSED, void *arg GCC_UNUSED)
+{
+ (void) sp;
+ (void) arg;
+ return endwin();
+}
+
+static int
+read_screen(SCREEN *sp GCC_UNUSED, void *arg GCC_UNUSED)
+{
+ return getch();
+}
+
+static int
+write_screen(SCREEN *sp GCC_UNUSED, void *arg GCC_UNUSED)
+{
+ addstr((char *) arg);
+ refresh();
+ return OK;
+}
+
+static void
+show_ditto(DITTO * data, int count, char *msg)
+{
+ int n;
+
+ for (n = 0; n < count; n++) {
+ USING_SCREEN(data[n].screen, write_screen, (void *) msg);
+ }
}
int
-main(
- int argc GCC_UNUSED,
- char *argv[] GCC_UNUSED)
+main(int argc GCC_UNUSED,
+ char *argv[]GCC_UNUSED)
{
- int j;
- int active_tty = 0;
- DITTO *data;
+ int j;
+ int count;
+ DITTO *data;
- if (argc <= 1)
- usage();
+ if (argc <= 1)
+ usage();
- if ((data = (DITTO *)calloc(argc, sizeof(DITTO))) == 0)
- failed("calloc data");
+ if ((data = typeCalloc(DITTO, argc)) == 0)
+ failed("calloc data");
- data[0].input = stdin;
- data[0].output = stdout;
- for (j = 1; j < argc; j++) {
- data[j].input =
- data[j].output = open_tty(argv[j]);
- }
+ data[0].input = stdin;
+ data[0].output = stdout;
+ for (j = 1; j < argc; j++) {
+ data[j].input =
+ data[j].output = open_tty(argv[j]);
+ }
- /*
- * If we got this far, we have open connection(s) to the terminal(s).
- * Set up the screens.
- */
- for (j = 0; j < argc; j++) {
- active_tty++;
- data[j].screen = newterm(
- (char *)0, /* assume $TERM is the same */
- data[j].output,
- data[j].input);
- if (data[j].screen == 0)
- failed("newterm");
- cbreak();
- noecho();
- scrollok(stdscr, TRUE);
- }
+ /*
+ * If we got this far, we have open connection(s) to the terminal(s).
+ * Set up the screens.
+ */
+ for (j = 0; j < argc; j++) {
+ data[j].screen = newterm((char *) 0, /* assume $TERM is the same */
+ data[j].output,
+ data[j].input);
+ if (data[j].screen == 0)
+ failed("newterm");
+ cbreak();
+ noecho();
+ scrollok(stdscr, TRUE);
+ nodelay(stdscr, TRUE);
+ }
- /*
- * Loop, reading characters from any of the inputs and writing to all
- * of the screens.
- */
- for(;;) {
- int ch;
- set_term(data[0].screen);
- ch = getch();
- if (ch == ERR)
- continue;
- if (ch == 4)
- break;
- for (j = 0; j < argc; j++) {
- set_term(data[j].screen);
- addch(ch);
- refresh();
- }
- }
+ /*
+ * Loop, reading characters from any of the inputs and writing to all
+ * of the screens.
+ */
+ for (count = 0;; ++count) {
+ char message[80];
+ int ch;
+ int which = (count % argc);
- /*
- * Cleanup and exit
- */
- for (j = argc-1; j >= 0; j--) {
- set_term(data[j].screen);
- endwin();
+ napms(20);
+ ch = USING_SCREEN(data[which].screen, read_screen, 0);
+ if (ch == ERR) {
+ continue;
}
- return EXIT_SUCCESS;
+ if (ch == CTRL('D'))
+ break;
+ sprintf(message, "from[%d:%d] '%c' (%#x)\n", count, which, ch, ch);
+ show_ditto(data, argc, message);
+ }
+
+ /*
+ * Cleanup and exit
+ */
+ for (j = argc - 1; j >= 0; j--) {
+ USING_SCREEN(data[j].screen, close_screen, 0);
+ fprintf(data[j].output, "**Closed\r\n");
+ fflush(data[j].output);
+ fclose(data[j].output);
+ delscreen(data[j].screen);
+ }
+ ExitProgram(EXIT_SUCCESS);
}
projects / ncurses.git / blobdiff