Add ncurses 6.4

third_party/ncurses/lib_tputs.c

@@ -0,0 +1,455 @@
+/****************************************************************************
+ * Copyright 2018-2021,2022 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            *
+ * "Software"), to deal in the Software without restriction, including      *
+ * without limitation the rights to use, copy, modify, merge, publish,      *
+ * distribute, distribute with modifications, sublicense, and/or sell       *
+ * copies of the Software, and to permit persons to whom the Software is    *
+ * furnished to do so, subject to the following conditions:                 *
+ *                                                                          *
+ * The above copyright notice and this permission notice shall be included  *
+ * in all copies or substantial portions of the Software.                   *
+ *                                                                          *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
+ *                                                                          *
+ * Except as contained in this notice, the name(s) of the above copyright   *
+ * holders shall not be used in advertising or otherwise to promote the     *
+ * sale, use or other dealings in this Software without prior written       *
+ * authorization.                                                           *
+ ****************************************************************************/
+
+/****************************************************************************
+ *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
+ *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
+ *     and: Thomas E. Dickey                        1996-on                 *
+ *     and: Juergen Pfeifer                         2009                    *
+ ****************************************************************************/
+
+/*
+ *	tputs.c
+ *		delay_output()
+ *		_nc_outch()
+ *		tputs()
+ *
+ */
+
+#include "curses.priv.h"
+
+#ifndef CUR
+#define CUR SP_TERMTYPE
+#endif
+
+#include <ctype.h>
+#include "termcap.h"		/* ospeed */
+#include "tic.h"
+
+MODULE_ID("$Id: lib_tputs.c,v 1.109 2022/07/21 23:26:34 tom Exp $")
+
+NCURSES_EXPORT_VAR(char) PC = 0;              /* used by termcap library */
+NCURSES_EXPORT_VAR(NCURSES_OSPEED) ospeed = 0;        /* used by termcap library */
+
+NCURSES_EXPORT_VAR(int) _nc_nulls_sent = 0;   /* used by 'tack' program */
+
+#if NCURSES_NO_PADDING
+NCURSES_EXPORT(void)
+_nc_set_no_padding(SCREEN *sp)
+{
+    bool no_padding = (getenv("NCURSES_NO_PADDING") != 0);
+
+    if (sp)
+	sp->_no_padding = no_padding;
+    else
+	_nc_prescreen._no_padding = no_padding;
+
+    TR(TRACE_CHARPUT | TRACE_MOVE, ("padding will%s be used",
+				    GetNoPadding(sp) ? " not" : ""));
+}
+#endif
+
+#if NCURSES_SP_FUNCS
+#define SetOutCh(func) if (SP_PARM) SP_PARM->_outch = func; else _nc_prescreen._outch = func
+#define GetOutCh()     (SP_PARM ? SP_PARM->_outch : _nc_prescreen._outch)
+#else
+#define SetOutCh(func) static_outch = func
+#define GetOutCh()     static_outch
+static NCURSES_SP_OUTC static_outch = NCURSES_SP_NAME(_nc_outch);
+#endif
+
+NCURSES_EXPORT(int)
+NCURSES_SP_NAME(delay_output) (NCURSES_SP_DCLx int ms)
+{
+    T((T_CALLED("delay_output(%p,%d)"), (void *) SP_PARM, ms));
+
+    if (!HasTInfoTerminal(SP_PARM))
+	returnCode(ERR);
+
+    if (no_pad_char) {
+	NCURSES_SP_NAME(_nc_flush) (NCURSES_SP_ARG);
+	napms(ms);
+    } else {
+	NCURSES_SP_OUTC my_outch = GetOutCh();
+	register int nullcount;
+
+	nullcount = (ms * _nc_baudrate(ospeed)) / (BAUDBYTE * 1000);
+	for (_nc_nulls_sent += nullcount; nullcount > 0; nullcount--)
+	    my_outch(NCURSES_SP_ARGx PC);
+	if (my_outch == NCURSES_SP_NAME(_nc_outch))
+	    NCURSES_SP_NAME(_nc_flush) (NCURSES_SP_ARG);
+    }
+
+    returnCode(OK);
+}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+delay_output(int ms)
+{
+    return NCURSES_SP_NAME(delay_output) (CURRENT_SCREEN, ms);
+}
+#endif
+
+NCURSES_EXPORT(void)
+NCURSES_SP_NAME(_nc_flush) (NCURSES_SP_DCL0)
+{
+    T((T_CALLED("_nc_flush(%p)"), (void *) SP_PARM));
+    if (SP_PARM != 0 && SP_PARM->_ofd >= 0) {
+	TR(TRACE_CHARPUT, ("ofd:%d inuse:%lu buffer:%p",
+			   SP_PARM->_ofd,
+			   (unsigned long) SP_PARM->out_inuse,
+			   SP_PARM->out_buffer));
+	if (SP_PARM->out_inuse) {
+	    char *buf = SP_PARM->out_buffer;
+	    size_t amount = SP_PARM->out_inuse;
+
+	    TR(TRACE_CHARPUT, ("flushing %ld/%ld bytes",
+			       (unsigned long) amount, _nc_outchars));
+	    while (amount) {
+		ssize_t res = write(SP_PARM->_ofd, buf, amount);
+		if (res > 0) {
+		    /* if the write was incomplete, try again */
+		    amount -= (size_t) res;
+		    buf += res;
+		} else if (errno == EAGAIN) {
+		    continue;
+		} else if (errno == EINTR) {
+		    continue;
+		} else {
+		    break;	/* an error we can not recover from */
+		}
+	    }
+	} else if (SP_PARM->out_buffer == 0) {
+	    TR(TRACE_CHARPUT, ("flushing stdout"));
+	    fflush(stdout);
+	}
+    } else {
+	TR(TRACE_CHARPUT, ("flushing stdout"));
+	fflush(stdout);
+    }
+    if (SP_PARM != 0)
+	SP_PARM->out_inuse = 0;
+    returnVoid;
+}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(void)
+_nc_flush(void)
+{
+    NCURSES_SP_NAME(_nc_flush) (CURRENT_SCREEN);
+}
+#endif
+
+NCURSES_EXPORT(int)
+NCURSES_SP_NAME(_nc_outch) (NCURSES_SP_DCLx int ch)
+{
+    int rc = OK;
+
+    COUNT_OUTCHARS(1);
+
+    if (HasTInfoTerminal(SP_PARM)
+	&& SP_PARM != 0) {
+	if (SP_PARM->out_buffer != 0) {
+	    if (SP_PARM->out_inuse + 1 >= SP_PARM->out_limit)
+		NCURSES_SP_NAME(_nc_flush) (NCURSES_SP_ARG);
+	    SP_PARM->out_buffer[SP_PARM->out_inuse++] = (char) ch;
+	} else {
+	    char tmp = (char) ch;
+	    /*
+	     * POSIX says write() is safe in a signal handler, but the
+	     * buffered I/O is not.
+	     */
+	    if (write(fileno(NC_OUTPUT(SP_PARM)), &tmp, (size_t) 1) == -1)
+		rc = ERR;
+	}
+    } else {
+	char tmp = (char) ch;
+	if (write(fileno(stdout), &tmp, (size_t) 1) == -1)
+	    rc = ERR;
+    }
+    return rc;
+}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+_nc_outch(int ch)
+{
+    return NCURSES_SP_NAME(_nc_outch) (CURRENT_SCREEN, ch);
+}
+#endif
+
+/*
+ * This is used for the putp special case.
+ */
+NCURSES_EXPORT(int)
+NCURSES_SP_NAME(_nc_putchar) (NCURSES_SP_DCLx int ch)
+{
+    (void) SP_PARM;
+    return putchar(ch);
+}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+_nc_putchar(int ch)
+{
+    return putchar(ch);
+}
+#endif
+
+/*
+ * putp is special - per documentation it calls tputs with putchar as the
+ * parameter for outputting characters.  This means that it uses stdio, which
+ * is not signal-safe.  Applications call this entrypoint; we do not call it
+ * from within the library.
+ */
+NCURSES_EXPORT(int)
+NCURSES_SP_NAME(putp) (NCURSES_SP_DCLx const char *string)
+{
+    return NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
+				   string, 1, NCURSES_SP_NAME(_nc_putchar));
+}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+putp(const char *string)
+{
+    return NCURSES_SP_NAME(putp) (CURRENT_SCREEN, string);
+}
+#endif
+
+/*
+ * Use these entrypoints rather than "putp" within the library.
+ */
+NCURSES_EXPORT(int)
+NCURSES_SP_NAME(_nc_putp) (NCURSES_SP_DCLx
+			   const char *name GCC_UNUSED,
+			   const char *string)
+{
+    int rc = ERR;
+
+    if (string != 0) {
+	TPUTS_TRACE(name);
+	rc = NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
+				     string, 1, NCURSES_SP_NAME(_nc_outch));
+    }
+    return rc;
+}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+_nc_putp(const char *name, const char *string)
+{
+    return NCURSES_SP_NAME(_nc_putp) (CURRENT_SCREEN, name, string);
+}
+#endif
+
+NCURSES_EXPORT(int)
+NCURSES_SP_NAME(tputs) (NCURSES_SP_DCLx
+			const char *string,
+			int affcnt,
+			NCURSES_SP_OUTC outc)
+{
+    NCURSES_SP_OUTC my_outch = GetOutCh();
+    bool always_delay = FALSE;
+    bool normal_delay = FALSE;
+    int number;
+#if BSD_TPUTS
+    int trailpad;
+#endif /* BSD_TPUTS */
+
+#ifdef TRACE
+    if (USE_TRACEF(TRACE_TPUTS)) {
+	char addrbuf[32];
+	TR_FUNC_BFR(1);
+
+	if (outc == NCURSES_SP_NAME(_nc_outch)) {
+	    _nc_STRCPY(addrbuf, "_nc_outch", sizeof(addrbuf));
+	} else {
+	    _nc_SPRINTF(addrbuf, _nc_SLIMIT(sizeof(addrbuf)) "%s",
+			TR_FUNC_ARG(0, outc));
+	}
+	if (_nc_tputs_trace) {
+	    _tracef("tputs(%s = %s, %d, %s) called", _nc_tputs_trace,
+		    _nc_visbuf(string), affcnt, addrbuf);
+	} else {
+	    _tracef("tputs(%s, %d, %s) called", _nc_visbuf(string), affcnt, addrbuf);
+	}
+	TPUTS_TRACE(NULL);
+	_nc_unlock_global(tracef);
+    }
+#endif /* TRACE */
+
+    if (!VALID_STRING(string))
+	return ERR;
+
+    if (SP_PARM != 0 && HasTInfoTerminal(SP_PARM)) {
+	if (
+#if NCURSES_SP_FUNCS
+	       (SP_PARM != 0 && SP_PARM->_term == 0)
+#else
+	       cur_term == 0
+#endif
+	    ) {
+	    always_delay = FALSE;
+	    normal_delay = TRUE;
+	} else {
+	    always_delay = (string == bell) || (string == flash_screen);
+	    normal_delay =
+		!xon_xoff
+		&& padding_baud_rate
+#if NCURSES_NO_PADDING
+		&& !GetNoPadding(SP_PARM)
+#endif
+		&& (_nc_baudrate(ospeed) >= padding_baud_rate);
+	}
+    }
+#if BSD_TPUTS
+    /*
+     * This ugly kluge deals with the fact that some ancient BSD programs
+     * (like nethack) actually do the likes of tputs("50") to get delays.
+     */
+    trailpad = 0;
+    if (isdigit(UChar(*string))) {
+	while (isdigit(UChar(*string))) {
+	    trailpad = trailpad * 10 + (*string - '0');
+	    string++;
+	}
+	trailpad *= 10;
+	if (*string == '.') {
+	    string++;
+	    if (isdigit(UChar(*string))) {
+		trailpad += (*string - '0');
+		string++;
+	    }
+	    while (isdigit(UChar(*string)))
+		string++;
+	}
+
+	if (*string == '*') {
+	    trailpad *= affcnt;
+	    string++;
+	}
+    }
+#endif /* BSD_TPUTS */
+
+    SetOutCh(outc);		/* redirect delay_output() */
+    while (*string) {
+	if (*string != '$')
+	    (*outc) (NCURSES_SP_ARGx *string);
+	else {
+	    string++;
+	    if (*string != '<') {
+		(*outc) (NCURSES_SP_ARGx '$');
+		if (*string)
+		    (*outc) (NCURSES_SP_ARGx *string);
+	    } else {
+		bool mandatory;
+
+		string++;
+		if ((!isdigit(UChar(*string)) && *string != '.')
+		    || !strchr(string, '>')) {
+		    (*outc) (NCURSES_SP_ARGx '$');
+		    (*outc) (NCURSES_SP_ARGx '<');
+		    continue;
+		}
+
+		number = 0;
+		while (isdigit(UChar(*string))) {
+		    number = number * 10 + (*string - '0');
+		    string++;
+		}
+		number *= 10;
+		if (*string == '.') {
+		    string++;
+		    if (isdigit(UChar(*string))) {
+			number += (*string - '0');
+			string++;
+		    }
+		    while (isdigit(UChar(*string)))
+			string++;
+		}
+
+		mandatory = FALSE;
+		while (*string == '*' || *string == '/') {
+		    if (*string == '*') {
+			number *= affcnt;
+			string++;
+		    } else {	/* if (*string == '/') */
+			mandatory = TRUE;
+			string++;
+		    }
+		}
+
+		if (number > 0
+		    && (always_delay
+			|| normal_delay
+			|| mandatory))
+		    NCURSES_SP_NAME(delay_output) (NCURSES_SP_ARGx number / 10);
+
+	    }			/* endelse (*string == '<') */
+	}			/* endelse (*string == '$') */
+
+	if (*string == '\0')
+	    break;
+
+	string++;
+    }
+
+#if BSD_TPUTS
+    /*
+     * Emit any BSD-style prefix padding that we've accumulated now.
+     */
+    if (trailpad > 0
+	&& (always_delay || normal_delay))
+	NCURSES_SP_NAME(delay_output) (NCURSES_SP_ARGx trailpad / 10);
+#endif /* BSD_TPUTS */
+
+    SetOutCh(my_outch);
+    return OK;
+}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+_nc_outc_wrapper(SCREEN *sp, int c)
+{
+    if (0 == sp) {
+	return fputc(c, stdout);
+    } else {
+	return sp->jump(c);
+    }
+}
+
+NCURSES_EXPORT(int)
+tputs(const char *string, int affcnt, int (*outc) (int))
+{
+    SetSafeOutcWrapper(outc);
+    return NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx string, affcnt, _nc_outc_wrapper);
+}
+#endif