Import macOS userland

adv_cmds-176
basic_cmds-55
bootstrap_cmds-116.100.1
developer_cmds-66
diskdev_cmds-667.40.1
doc_cmds-53.60.1
file_cmds-321.40.3
mail_cmds-35
misc_cmds-34
network_cmds-606.40.1
patch_cmds-17
remote_cmds-63
shell_cmds-216.60.1
system_cmds-880.60.2
text_cmds-106

2 files changed, 673 insertions, 0 deletions

diff --git a/text_cmds/ul/ul.1 b/text_cmds/ul/ul.1
new file mode 100644
index 0000000..847b958
--- /dev/null
+++ b/text_cmds/ul/ul.1
@@ -0,0 +1,104 @@
+.\" Copyright (c) 1980, 1991, 1993
+.\"	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.
+.\"
+.\"     @(#)ul.1	8.1 (Berkeley) 6/6/93
+.\" $FreeBSD: src/usr.bin/ul/ul.1,v 1.18 2005/05/21 09:55:09 ru Exp $
+.\"
+.Dd August 4, 2004
+.Dt UL 1
+.Os
+.Sh NAME
+.Nm ul
+.Nd do underlining
+.Sh SYNOPSIS
+.Nm
+.Op Fl i
+.Op Fl t Ar terminal
+.Op Ar
+.Sh DESCRIPTION
+The
+.Nm
+utility reads the named files (or standard input if none are given)
+and translates occurrences of underscores to the sequence
+which indicates underlining for the terminal in use, as specified
+by the environment variable
+.Ev TERM .
+The file
+.Pa /etc/termcap
+is read to determine the appropriate sequences for underlining.
+If the terminal is incapable of underlining, but is capable of
+a standout mode then that is used instead.
+If the terminal can overstrike,
+or handles underlining automatically,
+.Nm
+degenerates to
+.Xr cat 1 .
+If the terminal cannot underline, underlining is ignored.
+.Pp
+The following options are available:
+.Bl -tag -width Ds
+.It Fl i
+Underlining is indicated by a separate line containing appropriate
+dashes `\-'; this is useful when you want to look at the underlining
+which is present in an
+.Xr nroff 1
+output stream on a crt-terminal.
+.It Fl t Ar terminal
+Overrides the terminal type specified in the environment with
+.Ar terminal .
+.El
+.Sh ENVIRONMENT
+The
+.Ev LANG , LC_ALL , LC_CTYPE
+and
+.Ev TERM
+environment variables affect the execution of
+.Nm
+as described in
+.Xr environ 7 .
+.Sh EXIT STATUS
+.Ex -std
+.Sh SEE ALSO
+.Xr colcrt 1 ,
+.Xr man 1 ,
+.Xr nroff 1
+.Sh HISTORY
+The
+.Nm
+command appeared in
+.Bx 3.0 .
+.Sh BUGS
+The
+.Xr nroff 1
+command usually outputs a series of backspaces and underlines intermixed
+with the text to indicate underlining.
+No attempt is made to optimize
+the backward motion.
diff --git a/text_cmds/ul/ul.c b/text_cmds/ul/ul.c
new file mode 100644
index 0000000..ab22ea8
--- /dev/null
+++ b/text_cmds/ul/ul.c
@@ -0,0 +1,569 @@
+/*
+ * Copyright (c) 1980, 1993
+ *	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 const char copyright[] =
+"@(#) Copyright (c) 1980, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)ul.c	8.1 (Berkeley) 6/6/93";
+#endif
+static const char rcsid[] =
+  "$FreeBSD: src/usr.bin/ul/ul.c,v 1.14 2005/05/21 09:55:09 ru Exp $";
+#endif /* not lint */
+
+#include <err.h>
+#include <locale.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <termcap.h>
+#include <unistd.h>
+#include <wchar.h>
+#include <wctype.h>
+
+#define	IESC	'\033'
+#define	SO	'\016'
+#define	SI	'\017'
+#define	HFWD	'9'
+#define	HREV	'8'
+#define	FREV	'7'
+#define	MAXBUF	512
+
+#define	NORMAL	000
+#define	ALTSET	001	/* Reverse */
+#define	SUPERSC	002	/* Dim */
+#define	SUBSC	004	/* Dim | Ul */
+#define	UNDERL	010	/* Ul */
+#define	BOLD	020	/* Bold */
+
+int	must_use_uc, must_overstrike;
+const char
+	*CURS_UP, *CURS_RIGHT, *CURS_LEFT,
+	*ENTER_STANDOUT, *EXIT_STANDOUT, *ENTER_UNDERLINE, *EXIT_UNDERLINE,
+	*ENTER_DIM, *ENTER_BOLD, *ENTER_REVERSE, *UNDER_CHAR, *EXIT_ATTRIBUTES;
+
+struct	CHAR	{
+	char	c_mode;
+	wchar_t	c_char;
+	int	c_width;	/* width or -1 if multi-column char. filler */
+} ;
+
+struct	CHAR	obuf[MAXBUF];
+int	col, maxcol;
+int	mode;
+int	halfpos;
+int	upln;
+int	iflag;
+
+static void usage(void);
+void setnewmode(int);
+void initcap(void);
+void reverse(void);
+int outchar(int);
+void fwd(void);
+void initbuf(void);
+void iattr(void);
+void overstrike(void);
+void flushln(void);
+void filter(FILE *);
+void outc(wint_t, int);
+
+#define	PRINT(s)	if (s == NULL) /* void */; else tputs(s, 1, outchar)
+
+int
+main(int argc, char **argv)
+{
+	int c;
+	const char *termtype;
+	FILE *f;
+	char termcap[1024];
+
+	setlocale(LC_ALL, "");
+
+	termtype = getenv("TERM");
+	if (termtype == NULL || (argv[0] && argv[0][0] == 'c' && !isatty(1)))
+		termtype = "lpr";
+	while ((c=getopt(argc, argv, "it:T:")) != -1)
+		switch(c) {
+
+		case 't':
+		case 'T': /* for nroff compatibility */
+			termtype = optarg;
+			break;
+		case 'i':
+			iflag = 1;
+			break;
+		default:
+			usage();
+		}
+
+	switch(tgetent(termcap, termtype)) {
+
+	case 1:
+		break;
+
+	default:
+		warnx("trouble reading termcap");
+		/* FALLTHROUGH */
+
+	case 0:
+		/* No such terminal type - assume dumb */
+		(void)strcpy(termcap, "dumb:os:col#80:cr=^M:sf=^J:am:");
+		break;
+	}
+	initcap();
+	if (    (tgetflag("os") && ENTER_BOLD==NULL ) ||
+		(tgetflag("ul") && ENTER_UNDERLINE==NULL && UNDER_CHAR==NULL))
+			must_overstrike = 1;
+	initbuf();
+	if (optind == argc)
+		filter(stdin);
+	else for (; optind<argc && argv[optind]; optind++) {
+		f = fopen(argv[optind],"r");
+		if (f == NULL)
+			err(1, "%s", argv[optind]);
+		else
+			filter(f);
+	}
+	exit(0);
+}
+
+static void
+usage(void)
+{
+	fprintf(stderr, "usage: ul [-i] [-t terminal] [file ...]\n");
+	exit(1);
+}
+
+void
+filter(FILE *f)
+{
+	wint_t c;
+	int i, w;
+
+	while ((c = getwc(f)) != WEOF && col < MAXBUF) switch(c) {
+
+	case '\b':
+		if (col > 0)
+			col--;
+		continue;
+
+	case '\t':
+		col = (col+8) & ~07;
+		if (col > maxcol)
+			maxcol = col;
+		continue;
+
+	case '\r':
+		col = 0;
+		continue;
+
+	case SO:
+		mode |= ALTSET;
+		continue;
+
+	case SI:
+		mode &= ~ALTSET;
+		continue;
+
+	case IESC:
+		switch (c = getwc(f)) {
+
+		case HREV:
+			if (halfpos == 0) {
+				mode |= SUPERSC;
+				halfpos--;
+			} else if (halfpos > 0) {
+				mode &= ~SUBSC;
+				halfpos--;
+			} else {
+				halfpos = 0;
+				reverse();
+			}
+			continue;
+
+		case HFWD:
+			if (halfpos == 0) {
+				mode |= SUBSC;
+				halfpos++;
+			} else if (halfpos < 0) {
+				mode &= ~SUPERSC;
+				halfpos++;
+			} else {
+				halfpos = 0;
+				fwd();
+			}
+			continue;
+
+		case FREV:
+			reverse();
+			continue;
+
+		default:
+			errx(1, "unknown escape sequence in input: %o, %o", IESC, c);
+		}
+		continue;
+
+	case '_':
+		if (obuf[col].c_char || obuf[col].c_width < 0) {
+			while (col > 0 && obuf[col].c_width < 0)
+				col--;
+			w = obuf[col].c_width;
+			for (i = 0; i < w; i++)
+				obuf[col++].c_mode |= UNDERL | mode;
+			if (col > maxcol)
+				maxcol = col;
+			continue;
+		}
+		obuf[col].c_char = '_';
+		obuf[col].c_width = 1;
+		/* FALLTHROUGH */
+	case ' ':
+		col++;
+		if (col > maxcol)
+			maxcol = col;
+		continue;
+
+	case '\n':
+		flushln();
+		continue;
+
+	case '\f':
+		flushln();
+		putwchar('\f');
+		continue;
+
+	default:
+		if ((w = wcwidth(c)) <= 0)	/* non printing */
+			continue;
+		if (obuf[col].c_char == '\0') {
+			obuf[col].c_char = c;
+			for (i = 0; i < w; i++)
+				obuf[col + i].c_mode = mode;
+			obuf[col].c_width = w;
+			for (i = 1; i < w; i++)
+				obuf[col + i].c_width = -1;
+		} else if (obuf[col].c_char == '_') {
+			obuf[col].c_char = c;
+			for (i = 0; i < w; i++)
+				obuf[col + i].c_mode |= UNDERL|mode;
+			obuf[col].c_width = w;
+			for (i = 1; i < w; i++)
+				obuf[col + i].c_width = -1;
+		} else if (obuf[col].c_char == c) {
+			for (i = 0; i < w; i++)
+				obuf[col + i].c_mode |= BOLD|mode;
+		} else {
+			w = obuf[col].c_width;
+			for (i = 0; i < w; i++)
+				obuf[col + i].c_mode = mode;
+		}
+		col += w;
+		if (col > maxcol)
+			maxcol = col;
+		continue;
+	}
+	if (ferror(f))
+		err(1, NULL);
+	if (maxcol)
+		flushln();
+}
+
+void
+flushln(void)
+{
+	int lastmode;
+	int i;
+	int hadmodes = 0;
+
+	lastmode = NORMAL;
+	for (i=0; i<maxcol; i++) {
+		if (obuf[i].c_mode != lastmode) {
+			hadmodes++;
+			setnewmode(obuf[i].c_mode);
+			lastmode = obuf[i].c_mode;
+		}
+		if (obuf[i].c_char == '\0') {
+			if (upln)
+				PRINT(CURS_RIGHT);
+			else
+				outc(' ', 1);
+		} else
+			outc(obuf[i].c_char, obuf[i].c_width);
+		if (obuf[i].c_width > 1)
+			i += obuf[i].c_width - 1;
+	}
+	if (lastmode != NORMAL) {
+		setnewmode(0);
+	}
+	if (must_overstrike && hadmodes)
+		overstrike();
+	putwchar('\n');
+	if (iflag && hadmodes)
+		iattr();
+	(void)fflush(stdout);
+	if (upln)
+		upln--;
+	initbuf();
+}
+
+/*
+ * For terminals that can overstrike, overstrike underlines and bolds.
+ * We don't do anything with halfline ups and downs, or Greek.
+ */
+void
+overstrike(void)
+{
+	int i;
+	wchar_t lbuf[256];
+	wchar_t *cp = lbuf;
+	int hadbold=0;
+
+	/* Set up overstrike buffer */
+	for (i=0; i<maxcol; i++)
+		switch (obuf[i].c_mode) {
+		case NORMAL:
+		default:
+			*cp++ = ' ';
+			break;
+		case UNDERL:
+			*cp++ = '_';
+			break;
+		case BOLD:
+			*cp++ = obuf[i].c_char;
+			if (obuf[i].c_width > 1)
+				i += obuf[i].c_width - 1;
+			hadbold=1;
+			break;
+		}
+	putwchar('\r');
+	for (*cp=' '; *cp==' '; cp--)
+		*cp = 0;
+	for (cp=lbuf; *cp; cp++)
+		putwchar(*cp);
+	if (hadbold) {
+		putwchar('\r');
+		for (cp=lbuf; *cp; cp++)
+			putwchar(*cp=='_' ? ' ' : *cp);
+		putwchar('\r');
+		for (cp=lbuf; *cp; cp++)
+			putwchar(*cp=='_' ? ' ' : *cp);
+	}
+}
+
+void
+iattr(void)
+{
+	int i;
+	wchar_t lbuf[256];
+	wchar_t *cp = lbuf;
+
+	for (i=0; i<maxcol; i++)
+		switch (obuf[i].c_mode) {
+		case NORMAL:	*cp++ = ' '; break;
+		case ALTSET:	*cp++ = 'g'; break;
+		case SUPERSC:	*cp++ = '^'; break;
+		case SUBSC:	*cp++ = 'v'; break;
+		case UNDERL:	*cp++ = '_'; break;
+		case BOLD:	*cp++ = '!'; break;
+		default:	*cp++ = 'X'; break;
+		}
+	for (*cp=' '; *cp==' '; cp--)
+		*cp = 0;
+	for (cp=lbuf; *cp; cp++)
+		putwchar(*cp);
+	putwchar('\n');
+}
+
+void
+initbuf(void)
+{
+
+	bzero((char *)obuf, sizeof (obuf));	/* depends on NORMAL == 0 */
+	col = 0;
+	maxcol = 0;
+	mode &= ALTSET;
+}
+
+void
+fwd(void)
+{
+	int oldcol, oldmax;
+
+	oldcol = col;
+	oldmax = maxcol;
+	flushln();
+	col = oldcol;
+	maxcol = oldmax;
+}
+
+void
+reverse(void)
+{
+	upln++;
+	fwd();
+	PRINT(CURS_UP);
+	PRINT(CURS_UP);
+	upln++;
+}
+
+void
+initcap(void)
+{
+	static char tcapbuf[512];
+	char *bp = tcapbuf;
+
+	/* This nonsense attempts to work with both old and new termcap */
+	CURS_UP =		tgetstr("up", &bp);
+	CURS_RIGHT =		tgetstr("ri", &bp);
+	if (CURS_RIGHT == NULL)
+		CURS_RIGHT =	tgetstr("nd", &bp);
+	CURS_LEFT =		tgetstr("le", &bp);
+	if (CURS_LEFT == NULL)
+		CURS_LEFT =	tgetstr("bc", &bp);
+	if (CURS_LEFT == NULL && tgetflag("bs"))
+		CURS_LEFT =	"\b";
+
+	ENTER_STANDOUT =	tgetstr("so", &bp);
+	EXIT_STANDOUT =		tgetstr("se", &bp);
+	ENTER_UNDERLINE =	tgetstr("us", &bp);
+	EXIT_UNDERLINE =	tgetstr("ue", &bp);
+	ENTER_DIM =		tgetstr("mh", &bp);
+	ENTER_BOLD =		tgetstr("md", &bp);
+	ENTER_REVERSE =		tgetstr("mr", &bp);
+	EXIT_ATTRIBUTES =	tgetstr("me", &bp);
+
+	if (!ENTER_BOLD && ENTER_REVERSE)
+		ENTER_BOLD = ENTER_REVERSE;
+	if (!ENTER_BOLD && ENTER_STANDOUT)
+		ENTER_BOLD = ENTER_STANDOUT;
+	if (!ENTER_UNDERLINE && ENTER_STANDOUT) {
+		ENTER_UNDERLINE = ENTER_STANDOUT;
+		EXIT_UNDERLINE = EXIT_STANDOUT;
+	}
+	if (!ENTER_DIM && ENTER_STANDOUT)
+		ENTER_DIM = ENTER_STANDOUT;
+	if (!ENTER_REVERSE && ENTER_STANDOUT)
+		ENTER_REVERSE = ENTER_STANDOUT;
+	if (!EXIT_ATTRIBUTES && EXIT_STANDOUT)
+		EXIT_ATTRIBUTES = EXIT_STANDOUT;
+
+	/*
+	 * Note that we use REVERSE for the alternate character set,
+	 * not the as/ae capabilities.  This is because we are modelling
+	 * the model 37 teletype (since that's what nroff outputs) and
+	 * the typical as/ae is more of a graphics set, not the greek
+	 * letters the 37 has.
+	 */
+
+	UNDER_CHAR =		tgetstr("uc", &bp);
+	must_use_uc = (UNDER_CHAR && !ENTER_UNDERLINE);
+}
+
+int
+outchar(int c)
+{
+	return (putwchar(c) != WEOF ? c : EOF);
+}
+
+static int curmode = 0;
+
+void
+outc(wint_t c, int width)
+{
+	int i;
+
+	putwchar(c);
+	if (must_use_uc && (curmode&UNDERL)) {
+		for (i = 0; i < width; i++)
+			PRINT(CURS_LEFT);
+		for (i = 0; i < width; i++)
+			PRINT(UNDER_CHAR);
+	}
+}
+
+void
+setnewmode(int newmode)
+{
+	if (!iflag) {
+		if (curmode != NORMAL && newmode != NORMAL)
+			setnewmode(NORMAL);
+		switch (newmode) {
+		case NORMAL:
+			switch(curmode) {
+			case NORMAL:
+				break;
+			case UNDERL:
+				PRINT(EXIT_UNDERLINE);
+				break;
+			default:
+				/* This includes standout */
+				PRINT(EXIT_ATTRIBUTES);
+				break;
+			}
+			break;
+		case ALTSET:
+			PRINT(ENTER_REVERSE);
+			break;
+		case SUPERSC:
+			/*
+			 * This only works on a few terminals.
+			 * It should be fixed.
+			 */
+			PRINT(ENTER_UNDERLINE);
+			PRINT(ENTER_DIM);
+			break;
+		case SUBSC:
+			PRINT(ENTER_DIM);
+			break;
+		case UNDERL:
+			PRINT(ENTER_UNDERLINE);
+			break;
+		case BOLD:
+			PRINT(ENTER_BOLD);
+			break;
+		default:
+			/*
+			 * We should have some provision here for multiple modes
+			 * on at once.  This will have to come later.
+			 */
+			PRINT(ENTER_STANDOUT);
+			break;
+		}
+	}
+	curmode = newmode;
+}