libncurses: Import https://ftp.gnu.org/pub/gnu/ncurses/ncurses-6.5.tar.gz changes

Change-Id: I3433d30ca01359fd2e3623ede96b531f0b39cbfa
Signed-off-by: micky387 <mickaelsaibi@free.fr>
diff --git a/ncurses/trace/README b/ncurses/trace/README
index e658fec..0a33300 100644
--- a/ncurses/trace/README
+++ b/ncurses/trace/README
@@ -1,5 +1,6 @@
 -------------------------------------------------------------------------------
--- Copyright (c) 1998,2006 Free Software Foundation, Inc.                    --
+-- Copyright 2020 Thomas E. Dickey                                           --
+-- Copyright 1998,2006 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             --
@@ -25,7 +26,7 @@
 -- sale, use or other dealings in this Software without prior written        --
 -- authorization.                                                            --
 -------------------------------------------------------------------------------
--- $Id: README,v 1.2 2006/04/22 22:19:37 tom Exp $
+-- $Id: README,v 1.3 2020/02/02 23:34:34 tom Exp $
 -------------------------------------------------------------------------------
 
 The files in this directory (trace) support both the terminfo and ncurses
diff --git a/ncurses/trace/lib_trace.c b/ncurses/trace/lib_trace.c
index cec01de..0904c13 100644
--- a/ncurses/trace/lib_trace.c
+++ b/ncurses/trace/lib_trace.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 1998-2012,2013 Free Software Foundation, Inc.              *
+ * Copyright 2018-2023,2024 Thomas E. Dickey                                *
+ * Copyright 1998-2016,2017 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            *
@@ -36,7 +37,7 @@
 /*
  *	lib_trace.c - Tracing/Debugging routines
  *
- * The _tracef() function is originally from pcurses (by Pavel Curtis) in 1982. 
+ * The _tracef() function is originally from pcurses (by Pavel Curtis) in 1982.
  * pcurses allowed one to enable/disable tracing using traceon() and traceoff()
  * functions.  ncurses provides a trace() function which allows one to
  * selectively enable or disable several tracing features.
@@ -47,7 +48,7 @@
 
 #include <ctype.h>
 
-MODULE_ID("$Id: lib_trace.c,v 1.82 2013/07/06 19:42:09 tom Exp $")
+MODULE_ID("$Id: lib_trace.c,v 1.106 2024/02/24 18:28:19 tom Exp $")
 
 NCURSES_EXPORT_VAR(unsigned) _nc_tracing = 0; /* always define this */
 
@@ -85,60 +86,130 @@
 NCURSES_EXPORT_VAR(long) _nc_outchars = 0;
 #endif
 
-#define TraceFP		_nc_globals.trace_fp
-#define TracePath	_nc_globals.trace_fname
-#define TraceLevel	_nc_globals.trace_level
+#define MyFP		_nc_globals.trace_fp
+#define MyFD		_nc_globals.trace_fd
+#define MyInit		_nc_globals.trace_opened
+#define MyLevel		_nc_globals.trace_level
+#define MyNested	_nc_globals.nested_tracef
+#endif /* TRACE */
 
-NCURSES_EXPORT(void)
-trace(const unsigned int tracelevel)
+#if USE_REENTRANT
+#define Locked(statement) \
+    do { \
+	_nc_lock_global(tst_tracef); \
+	statement; \
+	_nc_unlock_global(tst_tracef); \
+    } while (0)
+#else
+#define Locked(statement) statement
+#endif
+
+NCURSES_EXPORT(unsigned)
+curses_trace(unsigned tracelevel)
 {
-    if ((TraceFP == 0) && tracelevel) {
-	const char *mode = _nc_globals.init_trace ? "ab" : "wb";
+    unsigned result;
 
-	if (TracePath[0] == '\0') {
-	    size_t size = sizeof(TracePath) - 12;
-	    if (getcwd(TracePath, size) == 0) {
-		perror("curses: Can't get working directory");
-		exit(EXIT_FAILURE);
+#if defined(TRACE)
+    int bit;
+
+#define DATA(name) { name, #name }
+    static struct {
+	unsigned mask;
+	const char *name;
+    } trace_names[] = {
+	DATA(TRACE_TIMES),
+	    DATA(TRACE_TPUTS),
+	    DATA(TRACE_UPDATE),
+	    DATA(TRACE_MOVE),
+	    DATA(TRACE_CHARPUT),
+	    DATA(TRACE_CALLS),
+	    DATA(TRACE_VIRTPUT),
+	    DATA(TRACE_IEVENT),
+	    DATA(TRACE_BITS),
+	    DATA(TRACE_ICALLS),
+	    DATA(TRACE_CCALLS),
+	    DATA(TRACE_DATABASE),
+	    DATA(TRACE_ATTRS)
+    };
+#undef DATA
+
+    Locked(result = _nc_tracing);
+
+    if ((MyFP == 0) && tracelevel) {
+	MyInit = TRUE;
+	if (MyFD >= 0) {
+	    MyFP = fdopen(MyFD, BIN_W);
+	} else {
+	    char myFile[80];
+
+	    _nc_STRCPY(myFile, "trace", sizeof(myFile));
+	    if (_nc_is_dir_path(myFile)) {
+		_nc_STRCAT(myFile, ".log", sizeof(myFile));
 	    }
-	    TracePath[size] = '\0';
-	    assert(strlen(TracePath) <= size);
-	    _nc_STRCAT(TracePath, "/trace", sizeof(TracePath));
-	    if (_nc_is_dir_path(TracePath)) {
-		_nc_STRCAT(TracePath, ".log", sizeof(TracePath));
+#define SAFE_MODE (O_CREAT | O_EXCL | O_RDWR)
+	    if (_nc_access(myFile, W_OK) < 0
+		|| (MyFD = safe_open3(myFile, SAFE_MODE, 0600)) < 0
+		|| (MyFP = fdopen(MyFD, BIN_W)) == 0) {
+		;		/* EMPTY */
 	    }
 	}
-
-	_nc_globals.init_trace = TRUE;
-	_nc_tracing = tracelevel;
-	if (_nc_access(TracePath, W_OK) < 0
-	    || (TraceFP = fopen(TracePath, mode)) == 0) {
-	    perror("curses: Can't open 'trace' file");
-	    exit(EXIT_FAILURE);
-	}
+	Locked(_nc_tracing = tracelevel);
 	/* Try to set line-buffered mode, or (failing that) unbuffered,
 	 * so that the trace-output gets flushed automatically at the
-	 * end of each line.  This is useful in case the program dies. 
+	 * end of each line.  This is useful in case the program dies.
 	 */
+	if (MyFP != 0) {
 #if HAVE_SETVBUF		/* ANSI */
-	(void) setvbuf(TraceFP, (char *) 0, _IOLBF, (size_t) 0);
+	    (void) setvbuf(MyFP, (char *) 0, _IOLBF, (size_t) 0);
 #elif HAVE_SETBUF /* POSIX */
-	(void) setbuffer(TraceFP, (char *) 0);
+	    (void) setbuffer(MyFP, (char *) 0);
 #endif
+	}
 	_tracef("TRACING NCURSES version %s.%d (tracelevel=%#x)",
 		NCURSES_VERSION,
 		NCURSES_VERSION_PATCH,
 		tracelevel);
-    } else if (tracelevel == 0) {
-	if (TraceFP != 0) {
-	    fclose(TraceFP);
-	    TraceFP = 0;
+
+#define SPECIAL_MASK(mask) \
+	    if ((tracelevel & mask) == mask) \
+		_tracef("- %s (%u)", #mask, mask)
+
+	for (bit = 0; bit < TRACE_SHIFT; ++bit) {
+	    unsigned mask = (1U << bit) & tracelevel;
+	    if ((mask & trace_names[bit].mask) != 0) {
+		_tracef("- %s (%u)", trace_names[bit].name, mask);
+	    }
 	}
-	_nc_tracing = tracelevel;
+	SPECIAL_MASK(TRACE_MAXIMUM);
+	else
+	SPECIAL_MASK(TRACE_ORDINARY);
+
+	if (tracelevel > TRACE_MAXIMUM) {
+	    _tracef("- DEBUG_LEVEL(%u)", tracelevel >> TRACE_SHIFT);
+	}
+    } else if (tracelevel == 0) {
+	if (MyFP != 0) {
+	    MyFD = dup(MyFD);	/* allow reopen of same file */
+	    fclose(MyFP);
+	    MyFP = 0;
+	}
+	Locked(_nc_tracing = tracelevel);
     } else if (_nc_tracing != tracelevel) {
-	_nc_tracing = tracelevel;
+	Locked(_nc_tracing = tracelevel);
 	_tracef("tracelevel=%#x", tracelevel);
     }
+#else
+    (void) tracelevel;
+    result = 0;
+#endif
+    return result;
+}
+
+#if defined(TRACE)
+NCURSES_EXPORT(void)
+trace(const unsigned int tracelevel)
+{
+    curses_trace(tracelevel);
 }
 
 static void
@@ -151,16 +222,23 @@
     bool after = FALSE;
     unsigned doit = _nc_tracing;
     int save_err = errno;
+    FILE *fp = MyFP;
+
+#ifdef TRACE
+    /* verbose-trace in the command-line utilities relies on this */
+    if (fp == 0 && !MyInit && _nc_tracing >= DEBUG_LEVEL(1))
+	fp = stderr;
+#endif
 
     if (strlen(fmt) >= sizeof(Called) - 1) {
 	if (!strncmp(fmt, Called, sizeof(Called) - 1)) {
 	    before = TRUE;
-	    TraceLevel++;
+	    MyLevel++;
 	} else if (!strncmp(fmt, Return, sizeof(Return) - 1)) {
 	    after = TRUE;
 	}
 	if (before || after) {
-	    if ((TraceLevel <= 1)
+	    if ((MyLevel <= 1)
 		|| (doit & TRACE_ICALLS) != 0)
 		doit &= (TRACE_CALLS | TRACE_CCALLS);
 	    else
@@ -168,9 +246,7 @@
 	}
     }
 
-    if (doit != 0) {
-	if (TraceFP == 0)
-	    TraceFP = stderr;
+    if (doit != 0 && fp != 0) {
 #ifdef USE_PTHREADS
 	/*
 	 * TRACE_ICALLS is "really" needed to show normal use with threaded
@@ -184,30 +260,32 @@
 # if USE_WEAK_SYMBOLS
 	if ((pthread_self))
 # endif
-#ifdef __MINGW32__
-	    fprintf(TraceFP, "%#lx:", (long) (intptr_t) pthread_self().p);
+	    fprintf(fp, "%#" PRIxPTR ":",
+#ifdef _NC_WINDOWS
+		    CASTxPTR(pthread_self().p)
 #else
-	    fprintf(TraceFP, "%#lx:", (long) (intptr_t) pthread_self());
+		    CASTxPTR(pthread_self())
 #endif
+		);
 #endif
 	if (before || after) {
 	    int n;
-	    for (n = 1; n < TraceLevel; n++)
-		fputs("+ ", TraceFP);
+	    for (n = 1; n < MyLevel; n++)
+		fputs("+ ", fp);
 	}
-	vfprintf(TraceFP, fmt, ap);
-	fputc('\n', TraceFP);
-	fflush(TraceFP);
+	vfprintf(fp, fmt, ap);
+	fputc('\n', fp);
+	fflush(fp);
     }
 
-    if (after && TraceLevel)
-	TraceLevel--;
+    if (after && MyLevel)
+	MyLevel--;
 
     errno = save_err;
 }
 
 NCURSES_EXPORT(void)
-_tracef(const char *fmt,...)
+_tracef(const char *fmt, ...)
 {
     va_list ap;
 
@@ -296,6 +374,39 @@
     return code;
 }
 
+NCURSES_EXPORT(char *)
+_nc_fmt_funcptr(char *target, const char *source, size_t size)
+{
+    size_t n;
+    char *dst = target;
+    bool leading = TRUE;
+
+    union {
+	int value;
+	char bytes[sizeof(int)];
+    } byteorder;
+
+    byteorder.value = 0x1234;
+
+    *dst++ = '0';
+    *dst++ = 'x';
+
+    for (n = 0; n < size; ++n) {
+	unsigned ch = ((byteorder.bytes[0] == 0x34)
+		       ? UChar(source[size - n - 1])
+		       : UChar(source[n]));
+	if (ch != 0 || (n + 1) >= size)
+	    leading = FALSE;
+	if (!leading) {
+	    _nc_SPRINTF(dst, _nc_SLIMIT(TR_FUNC_LEN - (size_t) (dst - target))
+			"%02x", ch & 0xff);
+	    dst += 2;
+	}
+    }
+    *dst = '\0';
+    return target;
+}
+
 #if USE_REENTRANT
 /*
  * Check if the given trace-mask is enabled.
@@ -310,13 +421,13 @@
     bool result = FALSE;
 
     _nc_lock_global(tst_tracef);
-    if (!_nc_globals.nested_tracef++) {
+    if (!MyNested++) {
 	if ((result = (_nc_tracing & (mask))) != 0
 	    && _nc_try_global(tracef) == 0) {
 	    /* we will call _nc_locked_tracef(), no nesting so far */
 	} else {
 	    /* we will not call _nc_locked_tracef() */
-	    _nc_globals.nested_tracef = 0;
+	    MyNested = 0;
 	}
     } else {
 	/* we may call _nc_locked_tracef(), but with nested_tracef > 0 */
@@ -331,7 +442,7 @@
  * the tracef mutex.
  */
 NCURSES_EXPORT(void)
-_nc_locked_tracef(const char *fmt,...)
+_nc_locked_tracef(const char *fmt, ...)
 {
     va_list ap;
 
@@ -339,7 +450,7 @@
     _nc_va_tracef(fmt, ap);
     va_end(ap);
 
-    if (--(_nc_globals.nested_tracef) == 0) {
+    if (--(MyNested) == 0) {
 	_nc_unlock_global(tracef);
     }
 }
diff --git a/ncurses/trace/lib_traceatr.c b/ncurses/trace/lib_traceatr.c
index 24772d8..b362862 100644
--- a/ncurses/trace/lib_traceatr.c
+++ b/ncurses/trace/lib_traceatr.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 1998-2013,2014 Free Software Foundation, Inc.              *
+ * Copyright 2018-2022,2024 Thomas E. Dickey                                *
+ * Copyright 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            *
@@ -43,7 +44,7 @@
 #define CUR SP_TERMTYPE
 #endif
 
-MODULE_ID("$Id: lib_traceatr.c,v 1.83 2015/04/04 13:41:37 tom Exp $")
+MODULE_ID("$Id: lib_traceatr.c,v 1.96 2024/02/04 00:11:35 tom Exp $")
 
 #define COLOR_OF(c) ((c < 0) ? "default" : (c > 7 ? color_of(c) : colors[c].name))
 
@@ -67,7 +68,7 @@
     if (c != my_cached) {
 	my_cached = c;
 	my_select = !my_select;
-	if (c == COLOR_DEFAULT)
+	if (isDefaultColor(c))
 	    _nc_STRCPY(my_buffer[my_select], "default",
 		       COLOR_BUF_SIZE(my_select));
 	else
@@ -123,11 +124,10 @@
 #endif /* !USE_TERMLIB */
     ;
 #undef DATA
-    size_t n;
-    char temp[80];
     char *result = _nc_trace_buf(bufnum, (size_t) BUFSIZ);
 
     if (result != 0) {
+	size_t n;
 	unsigned save_nc_tracing = _nc_tracing;
 
 	_nc_tracing = 0;
@@ -135,12 +135,14 @@
 	_nc_STRCPY(result, l_brace, TRACE_BUF_SIZE(bufnum));
 
 	for (n = 0; n < SIZEOF(names); n++) {
+
 	    if ((newmode & names[n].val) != 0) {
 		if (result[1] != '\0')
 		    (void) _nc_trace_bufcat(bufnum, "|");
 		result = _nc_trace_bufcat(bufnum, names[n].name);
 
 		if (names[n].val == A_COLOR) {
+		    char temp[80];
 		    short pairnum = (short) PairNumber(newmode);
 #ifdef USE_TERMLIB
 		    /* pair_content lives in libncurses */
@@ -254,7 +256,6 @@
     if (SP_PARM != 0 && (attr & A_ALTCHARSET) && (acs_chars != 0)) {
 	char *cp;
 	char *found = 0;
-	size_t n;
 
 	for (cp = acs_chars; cp[0] && cp[1]; cp += 2) {
 	    if (ChCharOf(UChar(cp[1])) == ChCharOf(ch)) {
@@ -264,6 +265,8 @@
 	}
 
 	if (found != 0) {
+	    size_t n;
+
 	    ch = ChCharOf(UChar(*found));
 	    for (n = 0; n < SIZEOF(names); ++n) {
 		if (names[n].val == ch) {
@@ -279,22 +282,25 @@
 NCURSES_EXPORT(char *)
 _tracechtype2(int bufnum, chtype ch)
 {
-    const char *found;
     char *result = _nc_trace_buf(bufnum, (size_t) BUFSIZ);
 
     if (result != 0) {
+	const char *found;
+	attr_t attr = ChAttrOf(ch);
+
 	_nc_STRCPY(result, l_brace, TRACE_BUF_SIZE(bufnum));
-	if ((found = _nc_altcharset_name(ChAttrOf(ch), ch)) != 0) {
+	if ((found = _nc_altcharset_name(attr, ch)) != 0) {
 	    (void) _nc_trace_bufcat(bufnum, found);
+	    attr &= ~A_ALTCHARSET;
 	} else
 	    (void) _nc_trace_bufcat(bufnum,
 				    _nc_tracechar(CURRENT_SCREEN,
 						  (int) ChCharOf(ch)));
 
-	if (ChAttrOf(ch) != A_NORMAL) {
+	if (attr != A_NORMAL) {
 	    (void) _nc_trace_bufcat(bufnum, " | ");
 	    (void) _nc_trace_bufcat(bufnum,
-				    _traceattr2(bufnum + 20, ChAttrOf(ch)));
+				    _traceattr2(bufnum + 20, attr));
 	}
 
 	result = _nc_trace_bufcat(bufnum, r_brace);
@@ -321,13 +327,13 @@
 _tracecchar_t2(int bufnum, const cchar_t *ch)
 {
     char *result = _nc_trace_buf(bufnum, (size_t) BUFSIZ);
-    attr_t attr;
-    const char *found;
 
     if (result != 0) {
 	_nc_STRCPY(result, l_brace, TRACE_BUF_SIZE(bufnum));
 	if (ch != 0) {
-	    attr = AttrOfD(ch);
+	    const char *found;
+	    attr_t attr = AttrOfD(ch);
+
 	    if ((found = _nc_altcharset_name(attr, (chtype) CharOfD(ch))) != 0) {
 		(void) _nc_trace_bufcat(bufnum, found);
 		attr &= ~A_ALTCHARSET;
@@ -337,8 +343,8 @@
 	    } else {
 		PUTC_DATA;
 		int n;
+		int assume_unicode = _nc_unicode_locale()? 128 : 255;
 
-		PUTC_INIT;
 		(void) _nc_trace_bufcat(bufnum, "{ ");
 		for (PUTC_i = 0; PUTC_i < CCHARW_MAX; ++PUTC_i) {
 		    PUTC_ch = ch->chars[PUTC_i];
@@ -347,6 +353,7 @@
 			    (void) _nc_trace_bufcat(bufnum, "\\000");
 			break;
 		    }
+		    PUTC_INIT;
 		    PUTC_n = (int) wcrtomb(PUTC_buf, ch->chars[PUTC_i], &PUT_st);
 		    if (PUTC_n <= 0) {
 			if (PUTC_ch != L'\0') {
@@ -356,13 +363,22 @@
 								  UChar(ch->chars[PUTC_i])));
 			}
 			break;
-		    }
-		    for (n = 0; n < PUTC_n; n++) {
-			if (n)
-			    (void) _nc_trace_bufcat(bufnum, ", ");
-			(void) _nc_trace_bufcat(bufnum,
-						_nc_tracechar(CURRENT_SCREEN,
-							      UChar(PUTC_buf[n])));
+		    } else if (ch->chars[PUTC_i] > assume_unicode) {
+			char temp[80];
+			_nc_SPRINTF(temp, _nc_SLIMIT(sizeof(temp))
+				    "{%d:\\u%04lx}",
+				    _nc_wacs_width(ch->chars[PUTC_i]),
+				    (unsigned long) ch->chars[PUTC_i]);
+			(void) _nc_trace_bufcat(bufnum, temp);
+			attr &= ~A_CHARTEXT;	/* ignore WidecExt(ch) */
+		    } else {
+			for (n = 0; n < PUTC_n; n++) {
+			    if (n)
+				(void) _nc_trace_bufcat(bufnum, ", ");
+			    (void) _nc_trace_bufcat(bufnum,
+						    _nc_tracechar(CURRENT_SCREEN,
+								  UChar(PUTC_buf[n])));
+			}
 		    }
 		}
 		(void) _nc_trace_bufcat(bufnum, " }");
@@ -371,6 +387,18 @@
 		(void) _nc_trace_bufcat(bufnum, " | ");
 		(void) _nc_trace_bufcat(bufnum, _traceattr2(bufnum + 20, attr));
 	    }
+#if NCURSES_EXT_COLORS
+	    /*
+	     * Just in case the extended color is different from the chtype
+	     * value, trace both.
+	     */
+	    if (ch->ext_color != PairNumber(attr)) {
+		char temp[80];
+		_nc_SPRINTF(temp, _nc_SLIMIT(sizeof(temp))
+			    " X_COLOR{%d:%d}", ch->ext_color, PairNumber(attr));
+		(void) _nc_trace_bufcat(bufnum, temp);
+	    }
+#endif
 	}
 
 	result = _nc_trace_bufcat(bufnum, r_brace);
diff --git a/ncurses/trace/lib_tracebits.c b/ncurses/trace/lib_tracebits.c
index f880b67..4bc50f3 100644
--- a/ncurses/trace/lib_tracebits.c
+++ b/ncurses/trace/lib_tracebits.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 1998-2012,2015 Free Software Foundation, Inc.              *
+ * Copyright 2019,2020 Thomas E. Dickey                                     *
+ * Copyright 1998-2012,2015 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            *
@@ -34,7 +35,7 @@
 
 #include <curses.priv.h>
 
-MODULE_ID("$Id: lib_tracebits.c,v 1.26 2015/04/19 14:58:39 tom Exp $")
+MODULE_ID("$Id: lib_tracebits.c,v 1.31 2020/11/14 23:38:11 tom Exp $")
 
 #if HAVE_SYS_TERMIO_H
 #include <sys/termio.h>		/* needed for ISC */
@@ -71,9 +72,15 @@
 
 #ifdef TRACE
 
+#if defined(EXP_WIN32_DRIVER)
+#define BITNAMELEN 36
+#else
+#define BITNAMELEN 8
+#endif
+
 typedef struct {
     unsigned int val;
-    const char name[8];
+    const char name[BITNAMELEN];
 } BITNAMES;
 
 #define TRACE_BUF_SIZE(num) (_nc_globals.tracebuf_ptr[num].size)
@@ -97,7 +104,7 @@
 }
 
 NCURSES_EXPORT(char *)
-_nc_trace_ttymode(TTY * tty)
+_nc_trace_ttymode(const TTY * tty)
 /* describe the state of the terminal control bits exactly */
 {
     char *buf;
@@ -130,7 +137,7 @@
 	DATA(ONOCR),
 	DATA(ONLRET),
 	DATAX()
-#define ALLOUT	(OPOST|OFLAGS_TABS|ONLCR|OCRNL|ONOCR|ONLRET)
+#define ALLOUT	(OPOST|OFLAGS_TABS|ONLCR|OCRNL|ONOCR|ONLRET|OFLAGS_TABS)
     }, cflags[] =
     {
 	DATA(CLOCAL),
@@ -211,6 +218,36 @@
 	if (tty->c_lflag & ALLLOCAL)
 	    lookup_bits(buf, lflags, "lflags", tty->c_lflag);
     }
+#elif defined(EXP_WIN32_DRIVER)
+#define DATA(name)        { name, { #name } }
+    static const BITNAMES dwFlagsOut[] =
+    {
+	DATA(ENABLE_PROCESSED_OUTPUT),
+	DATA(ENABLE_WRAP_AT_EOL_OUTPUT),
+	DATA(ENABLE_VIRTUAL_TERMINAL_PROCESSING),
+	DATA(DISABLE_NEWLINE_AUTO_RETURN),
+	DATA(ENABLE_LVB_GRID_WORLDWIDE)
+    };
+    static const BITNAMES dwFlagsIn[] =
+    {
+	DATA(ENABLE_PROCESSED_INPUT),
+	DATA(ENABLE_LINE_INPUT),
+	DATA(ENABLE_ECHO_INPUT),
+	DATA(ENABLE_MOUSE_INPUT),
+	DATA(ENABLE_INSERT_MODE),
+	DATA(ENABLE_QUICK_EDIT_MODE),
+	DATA(ENABLE_EXTENDED_FLAGS),
+	DATA(ENABLE_AUTO_POSITION),
+	DATA(ENABLE_VIRTUAL_TERMINAL_INPUT)
+    };
+
+    buf = _nc_trace_buf(0,
+			8 + sizeof(dwFlagsOut) +
+			8 + sizeof(dwFlagsIn));
+    if (buf != 0) {
+	lookup_bits(buf, dwFlagsIn, "dwIn", tty->dwFlagIn);
+	lookup_bits(buf, dwFlagsOut, "dwOut", tty->dwFlagOut);
+    }
 #else
     /* reference: ttcompat(4M) on SunOS 4.1 */
 #ifndef EVENP
diff --git a/ncurses/trace/lib_tracechr.c b/ncurses/trace/lib_tracechr.c
index 8977f75..9c879dc 100644
--- a/ncurses/trace/lib_tracechr.c
+++ b/ncurses/trace/lib_tracechr.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 1998-2009,2012 Free Software Foundation, Inc.              *
+ * Copyright 2020,2024 Thomas E. Dickey                                     *
+ * Copyright 1998-2009,2012 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            *
@@ -39,7 +40,7 @@
 
 #include <ctype.h>
 
-MODULE_ID("$Id: lib_tracechr.c,v 1.22 2012/02/22 22:40:24 tom Exp $")
+MODULE_ID("$Id: lib_tracechr.c,v 1.24 2024/02/04 00:11:35 tom Exp $")
 
 #ifdef TRACE
 
@@ -53,26 +54,28 @@
 		      ? sp->tracechr_buf
 		      : _nc_globals.tracechr_buf);
 
-    if (ch > KEY_MIN || ch < 0) {
+    if ((ch > KEY_MIN && !_nc_unicode_locale()) || ch < 0) {
 	name = safe_keyname(SP_PARM, ch);
 	if (name == 0 || *name == '\0')
 	    name = "NULL";
 	_nc_SPRINTF(MyBuffer, _nc_SLIMIT(MyBufSize)
-		    "'%.30s' = %#03o", name, ch);
-    } else if (!is8bits(ch) || !isprint(UChar(ch))) {
+		    "'%.30s' = \\x%02x", name, ch);
+    } else if (!is8bits(ch)
+	       || (_nc_unicode_locale() && !is7bits(ch))
+	       || !isprint(UChar(ch))) {
 	/*
 	 * workaround for glibc bug:
 	 * sprintf changes the result from unctrl() to an empty string if it
 	 * does not correspond to a valid multibyte sequence.
 	 */
 	_nc_SPRINTF(MyBuffer, _nc_SLIMIT(MyBufSize)
-		    "%#03o", ch);
+		    "\\x%02x", ch);
     } else {
 	name = safe_unctrl(SP_PARM, (chtype) ch);
 	if (name == 0 || *name == 0)
 	    name = "null";	/* shouldn't happen */
 	_nc_SPRINTF(MyBuffer, _nc_SLIMIT(MyBufSize)
-		    "'%.30s' = %#03o", name, ch);
+		    "'%.30s' = \\x%02x", name, ch);
     }
     return (MyBuffer);
 }
diff --git a/ncurses/trace/lib_tracedmp.c b/ncurses/trace/lib_tracedmp.c
index 0fda15b..529148b 100644
--- a/ncurses/trace/lib_tracedmp.c
+++ b/ncurses/trace/lib_tracedmp.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 1998-2009,2012 Free Software Foundation, Inc.              *
+ * Copyright 2020,2023 Thomas E. Dickey                                     *
+ * Copyright 1998-2012,2016 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            *
@@ -39,7 +40,7 @@
 #include <curses.priv.h>
 #include <ctype.h>
 
-MODULE_ID("$Id: lib_tracedmp.c,v 1.34 2012/10/27 20:54:42 tom Exp $")
+MODULE_ID("$Id: lib_tracedmp.c,v 1.37 2023/06/24 15:49:45 tom Exp $")
 
 #ifdef TRACE
 
@@ -70,13 +71,13 @@
     if (++width + 1 > (int) my_length) {
 	my_length = (unsigned) (2 * (width + 1));
 	my_buffer = typeRealloc(char, my_length, my_buffer);
-	if (my_buffer == 0)
-	    return;
     }
+    if (my_buffer == 0)
+	return;
 
     for (n = 0; n <= win->_maxy; ++n) {
 	char *ep = my_buffer;
-	bool haveattrs, havecolors;
+	bool havecolors;
 
 	/*
 	 * Dump A_CHARTEXT part.  It is more important to make the grid line up
@@ -156,8 +157,8 @@
 	for (i = 0; i < 4; ++i) {
 	    const char *hex = " 123456789ABCDEF";
 	    attr_t mask = (attr_t) (0xf << ((i + 4) * 4));
+	    bool haveattrs = FALSE;
 
-	    haveattrs = FALSE;
 	    for (j = 0; j < width; ++j)
 		if (AttrOf(win->_line[n].text[j]) & mask) {
 		    haveattrs = TRUE;
diff --git a/ncurses/trace/lib_tracemse.c b/ncurses/trace/lib_tracemse.c
index c62b71a..33d4d3d 100644
--- a/ncurses/trace/lib_tracemse.c
+++ b/ncurses/trace/lib_tracemse.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 1998-2012,2014 Free Software Foundation, Inc.              *
+ * Copyright 2020 Thomas E. Dickey                                          *
+ * Copyright 1998-2012,2014 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            *
@@ -38,7 +39,7 @@
 
 #include <curses.priv.h>
 
-MODULE_ID("$Id: lib_tracemse.c,v 1.22 2014/10/10 09:06:26 tom Exp $")
+MODULE_ID("$Id: lib_tracemse.c,v 1.23 2020/02/02 23:34:34 tom Exp $")
 
 #ifdef TRACE
 
diff --git a/ncurses/trace/trace_buf.c b/ncurses/trace/trace_buf.c
index 84a7a0c..91b12e4 100644
--- a/ncurses/trace/trace_buf.c
+++ b/ncurses/trace/trace_buf.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 1998-2011,2012 Free Software Foundation, Inc.              *
+ * Copyright 2020,2023 Thomas E. Dickey                                     *
+ * Copyright 1998-2011,2012 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            *
@@ -35,7 +36,7 @@
 
 #include <curses.priv.h>
 
-MODULE_ID("$Id: trace_buf.c,v 1.20 2012/02/22 22:34:31 tom Exp $")
+MODULE_ID("$Id: trace_buf.c,v 1.22 2023/06/24 13:37:25 tom Exp $")
 
 #ifdef TRACE
 
@@ -103,7 +104,11 @@
 NCURSES_EXPORT(char *)
 _nc_trace_bufcat(int bufnum, const char *value)
 {
-    char *buffer = _nc_trace_alloc(bufnum, (size_t) 0);
+    char *buffer;
+
+    if (value == NULL)
+	value = "";
+    buffer = _nc_trace_alloc(bufnum, (size_t) 0);
     if (buffer != 0) {
 	size_t have = strlen(buffer);
 	size_t need = strlen(value) + have;
diff --git a/ncurses/trace/trace_tries.c b/ncurses/trace/trace_tries.c
index 50ba016..14f704b 100644
--- a/ncurses/trace/trace_tries.c
+++ b/ncurses/trace/trace_tries.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 1999-2011,2012 Free Software Foundation, Inc.              *
+ * Copyright 2020 Thomas E. Dickey                                          *
+ * Copyright 1999-2011,2012 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            *
@@ -35,7 +36,7 @@
 
 #include <curses.priv.h>
 
-MODULE_ID("$Id: trace_tries.c,v 1.17 2012/10/27 20:50:50 tom Exp $")
+MODULE_ID("$Id: trace_tries.c,v 1.18 2020/02/02 23:34:34 tom Exp $")
 
 #ifdef TRACE
 #define my_buffer _nc_globals.tracetry_buf
diff --git a/ncurses/trace/trace_xnames.c b/ncurses/trace/trace_xnames.c
index 38a4873..2d74336 100644
--- a/ncurses/trace/trace_xnames.c
+++ b/ncurses/trace/trace_xnames.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 1999-2000,2010 Free Software Foundation, Inc.              *
+ * Copyright 2020 Thomas E. Dickey                                          *
+ * Copyright 1999-2010,2016 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            *
@@ -35,7 +36,7 @@
 
 #include <curses.priv.h>
 
-MODULE_ID("$Id: trace_xnames.c,v 1.6 2010/01/23 17:59:27 tom Exp $")
+MODULE_ID("$Id: trace_xnames.c,v 1.8 2020/02/02 23:34:34 tom Exp $")
 
 NCURSES_EXPORT(void)
 _nc_trace_xnames(TERMTYPE *tp GCC_UNUSED)
@@ -43,8 +44,9 @@
 #ifdef TRACE
 #if NCURSES_XNAMES
     int limit = tp->ext_Booleans + tp->ext_Numbers + tp->ext_Strings;
-    int n, m;
+
     if (limit) {
+	int n;
 	int begin_num = tp->ext_Booleans;
 	int begin_str = tp->ext_Booleans + tp->ext_Numbers;
 
@@ -53,7 +55,10 @@
 		limit,
 		tp->ext_Booleans, tp->ext_Numbers, tp->ext_Strings,
 		tp->num_Booleans, tp->num_Numbers, tp->num_Strings);
+
 	for (n = 0; n < limit; n++) {
+	    int m;
+
 	    if ((m = n - begin_str) >= 0) {
 		_tracef("[%d] %s = %s", n,
 			tp->ext_Names[n],
diff --git a/ncurses/trace/varargs.c b/ncurses/trace/varargs.c
index 66252d8..7b9533b 100644
--- a/ncurses/trace/varargs.c
+++ b/ncurses/trace/varargs.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 2001-2008,2012 Free Software Foundation, Inc.              *
+ * Copyright 2020,2023 Thomas E. Dickey                                     *
+ * Copyright 2001-2008,2012 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            *
@@ -34,7 +35,7 @@
 
 #include <ctype.h>
 
-MODULE_ID("$Id: varargs.c,v 1.11 2012/10/27 21:03:28 tom Exp $")
+MODULE_ID("$Id: varargs.c,v 1.13 2023/06/24 13:41:46 tom Exp $")
 
 #ifdef TRACE
 
@@ -58,18 +59,16 @@
 NCURSES_EXPORT(char *)
 _nc_varargs(const char *fmt, va_list ap)
 {
-    static char dummy[] = "";
-
     char buffer[BUFSIZ];
     const char *param;
     int n;
 
     if (fmt == 0 || *fmt == '\0')
-	return dummy;
+	return NULL;
     if (MyLength == 0)
 	MyBuffer = typeMalloc(char, MyLength = BUFSIZ);
     if (MyBuffer == 0)
-	return dummy;
+	return NULL;
     *MyBuffer = '\0';
 
     while (*fmt != '\0') {
@@ -184,7 +183,7 @@
 	}
     }
 
-    return (MyBuffer ? MyBuffer : dummy);
+    return (MyBuffer ? MyBuffer : NULL);
 }
 #else
 EMPTY_MODULE(_nc_varargs)
diff --git a/ncurses/trace/visbuf.c b/ncurses/trace/visbuf.c
index fec0643..590e423 100644
--- a/ncurses/trace/visbuf.c
+++ b/ncurses/trace/visbuf.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 2001-2012,2014 Free Software Foundation, Inc.              *
+ * Copyright 2019-2021,2023 Thomas E. Dickey                                *
+ * Copyright 2001-2016,2017 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            *
@@ -42,7 +43,7 @@
 #include <tic.h>
 #include <ctype.h>
 
-MODULE_ID("$Id: visbuf.c,v 1.44 2014/09/25 08:51:13 tom Exp $")
+MODULE_ID("$Id: visbuf.c,v 1.54 2023/05/27 20:13:10 tom Exp $")
 
 #define NUM_VISBUFS 4
 
@@ -66,7 +67,9 @@
 static char *
 _nc_vischar(char *tp, unsigned c LIMIT_ARG)
 {
-    if (c == '"' || c == '\\') {
+    if (tp == NULL) {
+	return NULL;
+    } else if (c == '"' || c == '\\') {
 	*tp++ = '\\';
 	*tp++ = (char) c;
     } else if (is7bits((int) c) && (isgraph((int) c) || c == ' ')) {
@@ -80,6 +83,9 @@
     } else if (c == '\b') {
 	*tp++ = '\\';
 	*tp++ = 'b';
+    } else if (c == '\t') {
+	*tp++ = '\\';
+	*tp++ = 't';
     } else if (c == '\033') {
 	*tp++ = '\\';
 	*tp++ = 'e';
@@ -105,7 +111,6 @@
 {
     const char *vbuf = 0;
     char *tp;
-    int c;
     int count;
 
     if (buf == 0)
@@ -122,6 +127,8 @@
 #else
     {
 	static char *mybuf[NUM_VISBUFS];
+	int c;
+
 	if (bufnum < 0) {
 	    for (c = 0; c < NUM_VISBUFS; ++c) {
 		FreeAndNull(mybuf[c]);
@@ -134,6 +141,8 @@
     }
 #endif
     if (tp != 0) {
+	int c;
+
 	*tp++ = D_QUOTE;
 	while ((--count >= 0) && (c = *buf++) != '\0') {
 	    tp = VisChar(tp, UChar(c), NormalLen(len));
@@ -185,7 +194,6 @@
 {
     const char *vbuf;
     char *tp;
-    wchar_t c;
     int count;
 
     if (buf == 0)
@@ -205,6 +213,8 @@
     }
 #endif
     if (tp != 0) {
+	wchar_t c;
+
 	*tp++ = D_QUOTE;
 	while ((--count >= 0) && (c = *buf++) != '\0') {
 	    char temp[CCHARW_MAX + 80];
@@ -275,13 +285,13 @@
 
 /* use these functions for displaying parts of a line within a window */
 NCURSES_EXPORT(const char *)
-_nc_viscbuf2(int bufnum, const NCURSES_CH_T * buf, int len)
+_nc_viscbuf2(int bufnum, const NCURSES_CH_T *buf, int len)
 {
     char *result = _nc_trace_buf(bufnum, (size_t) BUFSIZ);
-    int first;
-    const char *found;
 
     if (result != 0) {
+	int first = 0;
+
 #if USE_WIDEC_SUPPORT
 	if (len < 0)
 	    len = _nc_wchstrlen(buf);
@@ -290,7 +300,6 @@
 	/*
 	 * Display one or more strings followed by attributes.
 	 */
-	first = 0;
 	while (first < len) {
 	    attr_t attr = AttrOf(buf[first]);
 	    int last = len - 1;
@@ -306,7 +315,8 @@
 	    (void) _nc_trace_bufcat(bufnum, l_brace);
 	    (void) _nc_trace_bufcat(bufnum, d_quote);
 	    for (j = first; j <= last; ++j) {
-		found = _nc_altcharset_name(attr, (chtype) CharOf(buf[j]));
+		const char *found = _nc_altcharset_name(attr, (chtype)
+							CharOf(buf[j]));
 		if (found != 0) {
 		    (void) _nc_trace_bufcat(bufnum, found);
 		    attr &= ~A_ALTCHARSET;
@@ -315,9 +325,9 @@
 		if (!isWidecExt(buf[j])) {
 		    PUTC_DATA;
 
-		    PUTC_INIT;
 		    for (PUTC_i = 0; PUTC_i < CCHARW_MAX; ++PUTC_i) {
 			int k;
+			char temp[80];
 
 			PUTC_ch = buf[j].chars[PUTC_i];
 			if (PUTC_ch == L'\0') {
@@ -325,12 +335,18 @@
 				(void) _nc_trace_bufcat(bufnum, "\\000");
 			    break;
 			}
+			PUTC_INIT;
 			PUTC_n = (int) wcrtomb(PUTC_buf,
 					       buf[j].chars[PUTC_i], &PUT_st);
-			if (PUTC_n <= 0)
+			if (PUTC_n <= 0 || buf[j].chars[PUTC_i] > 255) {
+			    _nc_SPRINTF(temp, _nc_SLIMIT(sizeof(temp))
+					"{%d:\\u%lx}",
+					_nc_wacs_width(buf[j].chars[PUTC_i]),
+					(unsigned long) buf[j].chars[PUTC_i]);
+			    (void) _nc_trace_bufcat(bufnum, temp);
 			    break;
+			}
 			for (k = 0; k < PUTC_n; k++) {
-			    char temp[80];
 			    VisChar(temp, UChar(PUTC_buf[k]), sizeof(temp));
 			    (void) _nc_trace_bufcat(bufnum, temp);
 			}
@@ -357,7 +373,7 @@
 }
 
 NCURSES_EXPORT(const char *)
-_nc_viscbuf(const NCURSES_CH_T * buf, int len)
+_nc_viscbuf(const NCURSES_CH_T *buf, int len)
 {
     return _nc_viscbuf2(0, buf, len);
 }