Add ncurses 6.4

third_party/ncurses/lib_print.c

@@ -0,0 +1,113 @@
+/****************************************************************************
+ * Copyright 2018-2020,2021 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            *
+ * "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                                                 *
+ ****************************************************************************/
+
+#include "curses.priv.h"
+
+#ifndef CUR
+#define CUR SP_TERMTYPE
+#endif
+
+MODULE_ID("$Id: lib_print.c,v 1.30 2021/04/18 14:58:57 tom Exp $")
+
+NCURSES_EXPORT(int)
+NCURSES_SP_NAME(mcprint) (NCURSES_SP_DCLx char *data, int len)
+/* ship binary character data to the printer via mc4/mc5/mc5p */
+{
+    int result;
+    char *mybuf = NULL, *switchon;
+    size_t onsize, offsize;
+    size_t need;
+
+    errno = 0;
+    if (!HasTInfoTerminal(SP_PARM)
+	|| len <= 0
+	|| (!prtr_non && (!prtr_on || !prtr_off))) {
+	errno = ENODEV;
+	return (ERR);
+    }
+
+    if (prtr_non) {
+	switchon = TIPARM_1(prtr_non, len);
+	onsize = strlen(switchon);
+	offsize = 0;
+    } else {
+	switchon = prtr_on;
+	onsize = strlen(prtr_on);
+	offsize = strlen(prtr_off);
+    }
+
+    need = onsize + (size_t) len + offsize;
+
+    if (switchon == 0
+	|| (mybuf = typeMalloc(char, need + 1)) == 0) {
+	free(mybuf);
+	errno = ENOMEM;
+	return (ERR);
+    }
+
+    _nc_STRCPY(mybuf, switchon, need);
+    memcpy(mybuf + onsize, data, (size_t) len);
+    if (offsize)
+	_nc_STRCPY(mybuf + onsize + len, prtr_off, need);
+
+    /*
+     * We're relying on the atomicity of UNIX writes here.  The
+     * danger is that output from a refresh() might get interspersed
+     * with the printer data after the write call returns but before the
+     * data has actually been shipped to the terminal.  If the write(2)
+     * operation is truly atomic we're protected from this.
+     */
+    result = (int) write(TerminalOf(SP_PARM)->Filedes, mybuf, need);
+
+    /*
+     * By giving up our scheduler slot here we increase the odds that the
+     * kernel will ship the contiguous clist items from the last write
+     * immediately.
+     */
+#ifndef _NC_WINDOWS
+    (void) sleep(0);
+#endif
+    free(mybuf);
+    return (result);
+}
+
+#if NCURSES_SP_FUNCS && !defined(USE_TERM_DRIVER)
+NCURSES_EXPORT(int)
+mcprint(char *data, int len)
+{
+    return NCURSES_SP_NAME(mcprint) (CURRENT_SCREEN, data, len);
+}
+#endif