initial import of NetBSD tree

1 files changed, 232 insertions, 0 deletions

diff --git a/lib/libcurses/setterm.c b/lib/libcurses/setterm.c
new file mode 100644
index 00000000000..1d134903c11
--- /dev/null
+++ b/lib/libcurses/setterm.c
@@ -0,0 +1,232 @@
+/*
+ * Copyright (c) 1981, 1993, 1994
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)setterm.c	8.7 (Berkeley) 7/27/94";
+#endif /* not lint */
+
+#include <sys/ioctl.h>		/* TIOCGWINSZ on old systems. */
+
+#include <stdlib.h>
+#include <string.h>
+#include <termios.h>
+#include <unistd.h>
+
+#include "curses.h"
+
+static void zap __P((void));
+
+static char	*sflags[] = {
+		/*       am   bs   da   eo   hc   in   mi   ms  */
+			&AM, &BS, &DA, &EO, &HC, &IN, &MI, &MS,
+		/*	 nc   ns   os   ul   xb   xn   xt   xs   xx  */
+			&NC, &NS, &OS, &UL, &XB, &XN, &XT, &XS, &XX
+		};
+
+static char	*_PC,
+		**sstrs[] = {
+		/*	 AL   bc   bt   cd   ce   cl   cm   cr   cs  */
+			&AL, &BC, &BT, &CD, &CE, &CL, &CM, &CR, &CS,
+		/*	 dc   DL   dm   do   ed   ei   k0   k1   k2  */
+			&DC, &DL, &DM, &DO, &ED, &EI, &K0, &K1, &K2,
+		/*	 k3   k4   k5   k6   k7   k8   k9   ho   ic  */
+			&K3, &K4, &K5, &K6, &K7, &K8, &K9, &HO, &IC,
+		/*	 im   ip   kd   ke   kh   kl   kr   ks   ku  */
+			&IM, &IP, &KD, &KE, &KH, &KL, &KR, &KS, &KU,
+		/*	 ll   ma   nd   nl    pc   rc   sc   se   SF */
+			&LL, &MA, &ND, &NL, &_PC, &RC, &SC, &SE, &SF,
+		/*	 so   SR   ta   te   ti   uc   ue   up   us  */
+			&SO, &SR, &TA, &TE, &TI, &UC, &UE, &UP, &US,
+		/*	 vb   vs   ve   al   dl   sf   sr   AL	     */
+			&VB, &VS, &VE, &al, &dl, &sf, &sr, &AL_PARM, 
+		/*	 DL	   UP	     DO		 LE	     */
+			&DL_PARM, &UP_PARM, &DOWN_PARM, &LEFT_PARM, 
+		/*	 RI					     */
+			&RIGHT_PARM,
+		};
+
+static char	*aoftspace;		/* Address of _tspace for relocation */
+static char	tspace[2048];		/* Space for capability strings */
+
+char *ttytype;
+
+int
+setterm(type)
+	register char *type;
+{
+	static char genbuf[1024];
+	static char __ttytype[1024];
+	register int unknown;
+	struct winsize win;
+	char *p;
+
+#ifdef DEBUG
+	__CTRACE("setterm: (\"%s\")\nLINES = %d, COLS = %d\n",
+	    type, LINES, COLS);
+#endif
+	if (type[0] == '\0')
+		type = "xx";
+	unknown = 0;
+	if (tgetent(genbuf, type) != 1) {
+		unknown++;
+		strcpy(genbuf, "xx|dumb:");
+	}
+#ifdef DEBUG
+	__CTRACE("setterm: tty = %s\n", type);
+#endif
+
+	/* Try TIOCGWINSZ, and, if it fails, the termcap entry. */
+	if (ioctl(STDERR_FILENO, TIOCGWINSZ, &win) != -1 &&
+	    win.ws_row != 0 && win.ws_col != 0) {
+		LINES = win.ws_row;
+		COLS = win.ws_col;
+	}  else {
+		LINES = tgetnum("li");
+		COLS = tgetnum("co");
+	}
+
+	/* POSIX 1003.2 requires that the environment override. */
+	if ((p = getenv("LINES")) != NULL)
+		LINES = strtol(p, NULL, 10);
+	if ((p = getenv("COLUMNS")) != NULL)
+		COLS = strtol(p, NULL, 10);
+
+	/*
+	 * Want cols > 4, otherwise things will fail.
+	 */
+	if (COLS <= 4)
+		return (ERR);
+
+#ifdef DEBUG
+	__CTRACE("setterm: LINES = %d, COLS = %d\n", LINES, COLS);
+#endif
+	aoftspace = tspace;
+	zap();			/* Get terminal description. */
+
+	/* If we can't tab, we can't backtab, either. */
+	if (!GT)
+		BT = NULL;
+
+	/*
+	 * Test for cursor motion capbility.
+	 *
+	 * XXX
+	 * This is truly stupid -- tgoto returns "OOPS" if it can't
+	 * do cursor motions.
+	 */
+	if (tgoto(CM, 0, 0)[0] == 'O') {
+		CA = 0;
+		CM = 0;
+	} else
+		CA = 1;
+
+	PC = _PC ? _PC[0] : 0;
+	aoftspace = tspace;
+	ttytype = longname(genbuf, __ttytype);
+
+	/* If no scrolling commands, no quick change. */
+	__noqch =
+	    (CS == NULL || HO == NULL ||
+	    SF == NULL && sf == NULL || SR == NULL && sr == NULL) &&
+	    (AL == NULL && al == NULL || DL == NULL && dl == NULL);
+
+	return (unknown ? ERR : OK);
+}
+
+/*
+ * zap --
+ *	Gets all the terminal flags from the termcap database.
+ */
+static void
+zap()
+{
+	register char *namp, ***sp;
+	register char **fp;
+	char tmp[3];
+#ifdef DEBUG
+	register char	*cp;
+#endif
+	tmp[2] = '\0';
+
+	namp = "ambsdaeohcinmimsncnsosulxbxnxtxsxx";
+	fp = sflags;
+	do {
+		*tmp = *namp;
+		*(tmp + 1) = *(namp + 1);
+		*(*fp++) = tgetflag(tmp);
+#ifdef DEBUG
+		__CTRACE("2.2s = %s\n", namp, *fp[-1] ? "TRUE" : "FALSE");
+#endif
+		namp += 2;
+		
+	} while (*namp);
+	namp = "ALbcbtcdceclcmcrcsdcDLdmdoedeik0k1k2k3k4k5k6k7k8k9hoicimipkdkekhklkrkskullmandnlpcrcscseSFsoSRtatetiucueupusvbvsvealdlsfsrALDLUPDOLERI";
+	sp = sstrs;
+	do {
+		*tmp = *namp;
+		*(tmp + 1) = *(namp + 1);
+		*(*sp++) = tgetstr(tmp, &aoftspace);
+#ifdef DEBUG
+		__CTRACE("2.2s = %s", namp, *sp[-1] == NULL ? "NULL\n" : "\"");
+		if (*sp[-1] != NULL) {
+			for (cp = *sp[-1]; *cp; cp++)
+				__CTRACE("%s", unctrl(*cp));
+			__CTRACE("\"\n");
+		}
+#endif
+		namp += 2;
+	} while (*namp);
+	if (XS)
+		SO = SE = NULL;
+	else {
+		if (tgetnum("sg") > 0)
+			SO = NULL;
+		if (tgetnum("ug") > 0)
+			US = NULL;
+		if (!SO && US) {
+			SO = US;
+			SE = UE;
+		}
+	}
+}
+
+/*
+ * getcap --
+ *	Return a capability from termcap.
+ */
+char *
+getcap(name)
+	char *name;
+{
+	return (tgetstr(name, &aoftspace));
+}