X-Git-Url: http://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=test%2Fditto.c;h=a6b8ac3f813d01bd041e884d87716bafadb4593b;hp=a0e01f25e778e86f602bac5661e4b88e1a49d4e2;hb=0237f10a296593d54fd8b2aa144921983085e002;hpb=92e187a3459ab7ce1613a3684ca6642447c73620

diff --git a/test/ditto.c b/test/ditto.c
index a0e01f25..a6b8ac3f 100644
--- a/test/ditto.c
+++ b/test/ditto.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2009,2010 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2017,2018 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            *
@@ -29,7 +29,7 @@
 /*
  * Author: Thomas E. Dickey (1998-on)
  *
- * $Id: ditto.c,v 1.38 2010/05/01 22:08:03 tom Exp $
+ * $Id: ditto.c,v 1.48 2018/05/20 19:19:10 tom Exp $
  *
  * The program illustrates how to set up multiple screens from a single
  * program.
@@ -44,6 +44,8 @@
 #include <test.priv.h>
 #include <sys/stat.h>
 
+#if HAVE_DELSCREEN
+
 #ifdef USE_PTHREADS
 #include <pthread.h>
 #endif
@@ -52,10 +54,6 @@
 #include USE_OPENPTY_HEADER
 #endif
 
-#ifdef HAVE_VFORK_H
-#include <vfork.h>
-#endif
-
 #define MAX_FIFO 256
 
 #define THIS_FIFO(n) ((n) % MAX_FIFO)
@@ -84,6 +82,7 @@ typedef struct {
     int which1;			/* this screen's index in DITTO[] array */
     int length;			/* length of windows[] and peeks[] */
     char **titles;		/* per-window titles */
+    WINDOW **parents;		/* display boxes around each screen's data */
     WINDOW **windows;		/* display data from each screen */
     PEEK *peeks;		/* indices for each screen's fifo */
     FIFO fifo;			/* fifo for this screen */
@@ -102,6 +101,9 @@ typedef struct {
     DITTO *ditto;		/* data for all screens */
 } DDATA;
 
+static void failed(const char *) GCC_NORETURN;
+static void usage(void) GCC_NORETURN;
+
 static void
 failed(const char *s)
 {
@@ -112,7 +114,7 @@ failed(const char *s)
 static void
 usage(void)
 {
-    fprintf(stderr, "usage: ditto [terminal1 ...]\n");
+    fprintf(stderr, "Usage: ditto [terminal1 ...]\n");
     ExitProgram(EXIT_FAILURE);
 }
 
@@ -155,6 +157,10 @@ open_tty(char *path)
     int aslave;
     char slave_name[1024];
     char s_option[sizeof(slave_name) + 80];
+    const char *xterm_prog = 0;
+
+    if ((xterm_prog = getenv("XTERM_PROG")) == 0)
+	xterm_prog = "xterm";
 
     if (openpty(&amaster, &aslave, slave_name, 0, 0) != 0
 	|| strlen(slave_name) > sizeof(slave_name) - 1)
@@ -163,9 +169,10 @@ open_tty(char *path)
 	errno = EISDIR;
 	failed(slave_name);
     }
-    sprintf(s_option, "-S%s/%d", slave_name, aslave);
-    if (vfork()) {
-	execlp("xterm", "xterm", s_option, "-title", path, (char *) 0);
+    _nc_SPRINTF(s_option, _nc_SLIMIT(sizeof(s_option))
+		"-S%s/%d", slave_name, aslave);
+    if (fork()) {
+	execlp(xterm_prog, xterm_prog, s_option, "-title", path, (char *) 0);
 	_exit(0);
     }
     fp = fdopen(amaster, "r+");
@@ -189,7 +196,7 @@ open_tty(char *path)
     return fp;
 }
 
-static void
+static int
 init_screen(
 #if HAVE_USE_WINDOW
 	       SCREEN *sp GCC_UNUSED,
@@ -205,6 +212,7 @@ init_screen(
     scrollok(stdscr, TRUE);
     box(stdscr, 0, 0);
 
+    target->parents = typeCalloc(WINDOW *, (size_t) target->length);
     target->windows = typeCalloc(WINDOW *, (size_t) target->length);
     target->peeks = typeCalloc(PEEK, (size_t) target->length);
 
@@ -224,9 +232,11 @@ init_screen(
 	nodelay(inner, TRUE);
 #endif
 
+	target->parents[k] = outer;
 	target->windows[k] = inner;
     }
     doupdate();
+    return TRUE;
 }
 
 static void
@@ -330,6 +340,7 @@ show_ditto(DITTO * data, int count, DDATA * ddata)
 {
     int n;
 
+    (void) data;
     for (n = 0; n < count; n++) {
 	ddata->target = n;
 	USING_SCREEN(data[n].screen, write_screen, (void *) ddata);
@@ -442,3 +453,11 @@ main(int argc, char *argv[])
     }
     ExitProgram(EXIT_SUCCESS);
 }
+#else
+int
+main(void)
+{
+    printf("This program requires the curses delscreen function\n");
+    ExitProgram(EXIT_FAILURE);
+}
+#endif