ncurses 6.1 - patch 20190824

[ncurses.git] / test / filter.c

diff --git a/test/filter.c b/test/filter.c
index 89096ba370ff3c0082b89af0d2ddd34474faaa48..e9c0ee99b73271490cc74318ee37a4a1ec3501bb 100644 (file)
--- a/test/filter.c
+++ b/test/filter.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2014,2016 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2017,2019 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
  *
- * $Id: filter.c,v 1.26 2016/08/20 20:38:56 tom Exp $
+ * $Id: filter.c,v 1.33 2019/08/24 23:11:01 tom Exp $
  *
  * An example of the 'filter()' function in ncurses, this program prompts
  * for commands and executes them (like a command shell).  It illustrates
@@ -68,10 +68,10 @@ show_prompt(int underline, bool clocked)
            int skip, y, x;
            int margin;
 
-           sprintf(buffer, "%02d:%02d:%02d",
-                   my->tm_hour,
-                   my->tm_min,
-                   my->tm_sec);
+           _nc_SPRINTF(buffer, _nc_SLIMIT(sizeof(buffer)) "%02d:%02d:%02d",
+                       my->tm_hour,
+                       my->tm_min,
+                       my->tm_sec);
 
            if (limit > 9) {
                skip = 0;
@@ -100,12 +100,11 @@ static int
 new_command(char *buffer, int length, int underline, bool clocked, bool polled)
 {
     int code = OK;
-    int limit;
 
     if (polled) {
        bool done = FALSE;
        bool first = TRUE;
-       int y, x;
+       int y = 0, x = 0;
        int n;
        int mark = 0;
        int used = 0;
@@ -113,6 +112,7 @@ new_command(char *buffer, int length, int underline, bool clocked, bool polled)
 
        timeout(20);            /* no one types 50CPS... */
        while (!done) {
+           int limit;
            int ch = getch();
 
            buffer[used] = '\0';
@@ -242,18 +242,18 @@ new_command(char *buffer, int length, int underline, bool clocked, bool polled)
         */
 #ifdef KEY_EVENT
        if (code == KEY_EVENT)
-           strcpy(buffer, "# event!");
+           _nc_STRCPY(buffer, "# event!", length);
 #endif
 #ifdef KEY_RESIZE
        if (code == KEY_RESIZE) {
-           strcpy(buffer, "# resize!");
+           _nc_STRCPY(buffer, "# resize!", length);
            getch();
        }
 #endif
     }
     attroff(underline);
     attroff(A_BOLD);
-    printw("\n");
+    refresh();
 
     return code;
 }
@@ -308,6 +308,9 @@ usage(void)
        ,"  -a   suppress xterm alternate-screen by amending smcup/rmcup"
 #endif
        ,"  -c   show current time on prompt line with \"Command\""
+#if HAVE_USE_DEFAULT_COLORS
+       ,"  -d   invoke use_default_colors"
+#endif
        ,"  -i   use initscr() rather than newterm()"
        ,"  -p   poll for individual characters rather than using getnstr"
     };
@@ -327,12 +330,15 @@ main(int argc, char *argv[])
     bool a_option = FALSE;
 #endif
     bool c_option = FALSE;
+#if HAVE_USE_DEFAULT_COLORS
+    bool d_option = FALSE;
+#endif
     bool i_option = FALSE;
     bool p_option = FALSE;
 
     setlocale(LC_ALL, "");
 
-    while ((ch = getopt(argc, argv, "acip")) != -1) {
+    while ((ch = getopt(argc, argv, "adcip")) != -1) {
        switch (ch) {
 #ifdef NCURSES_VERSION
        case 'a':
@@ -342,6 +348,11 @@ main(int argc, char *argv[])
        case 'c':
            c_option = TRUE;
            break;
+#if HAVE_USE_DEFAULT_COLORS
+       case 'd':
+           d_option = TRUE;
+           break;
+#endif
        case 'i':
            i_option = TRUE;
            break;
@@ -359,7 +370,10 @@ main(int argc, char *argv[])
     if (i_option) {
        initscr();
     } else {
-       (void) newterm((char *) 0, stdout, stdin);
+       if (newterm((char *) 0, stdout, stdin) == 0) {
+           fprintf(stderr, "cannot initialize terminal\n");
+           ExitProgram(EXIT_FAILURE);
+       }
     }
 #ifdef NCURSES_VERSION
     if (a_option) {
@@ -373,7 +387,7 @@ main(int argc, char *argv[])
        int background = COLOR_BLACK;
        start_color();
 #if HAVE_USE_DEFAULT_COLORS
-       if (use_default_colors() != ERR)
+       if (d_option && (use_default_colors() != ERR))
            background = -1;
 #endif
        init_pair(1, COLOR_CYAN, (short) background);