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, 792 insertions, 0 deletions

diff --git a/text_cmds/rs/rs.1 b/text_cmds/rs/rs.1
new file mode 100644
index 0000000..5e27815
--- /dev/null
+++ b/text_cmds/rs/rs.1
@@ -0,0 +1,239 @@
+.\" Copyright (c) 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.
+.\"
+.\"	@(#)rs.1	8.2 (Berkeley) 12/30/93
+.\" $FreeBSD: src/usr.bin/rs/rs.1,v 1.11 2004/07/30 00:10:52 tjr Exp $
+.\"
+.Dd July 30, 2004
+.Dt RS 1
+.Os
+.Sh NAME
+.Nm rs
+.Nd reshape a data array
+.Sh SYNOPSIS
+.Nm
+.Oo
+.Fl Oo Cm csCS Oc Ns Op Ar x
+.Oo Cm kKgGw Oc Ns Op Ar N
+.Cm tTeEnyjhHmz
+.Oc
+.Op Ar rows Op Ar cols
+.Sh DESCRIPTION
+The
+.Nm
+utility reads the standard input, interpreting each line as a row
+of blank-separated entries in an array,
+transforms the array according to the options,
+and writes it on the standard output.
+With no arguments it transforms stream input into a columnar
+format convenient for terminal viewing.
+.Pp
+The shape of the input array is deduced from the number of lines
+and the number of columns on the first line.
+If that shape is inconvenient, a more useful one might be
+obtained by skipping some of the input with the
+.Fl k
+option.
+Other options control interpretation of the input columns.
+.Pp
+The shape of the output array is influenced by the
+.Ar rows
+and
+.Ar cols
+specifications, which should be positive integers.
+If only one of them is a positive integer,
+.Nm
+computes a value for the other which will accommodate
+all of the data.
+When necessary, missing data are supplied in a manner
+specified by the options and surplus data are deleted.
+There are options to control presentation of the output columns,
+including transposition of the rows and columns.
+.Pp
+The following options are available:
+.Bl -tag -width indent
+.It Fl c Ns Ar x
+Input columns are delimited by the single character
+.Ar x .
+A missing
+.Ar x
+is taken to be `^I'.
+.It Fl s Ns Ar x
+Like
+.Fl c ,
+but maximal strings of
+.Ar x
+are delimiters.
+.It Fl C Ns Ar x
+Output columns are delimited by the single character
+.Ar x .
+A missing
+.Ar x
+is taken to be `^I'.
+.It Fl S Ns Ar x
+Like
+.Fl C ,
+but padded strings of
+.Ar x
+are delimiters.
+.It Fl t
+Fill in the rows of the output array using the columns of the
+input array, that is, transpose the input while honoring any
+.Ar rows
+and
+.Ar cols
+specifications.
+.It Fl T
+Print the pure transpose of the input, ignoring any
+.Ar rows
+or
+.Ar cols
+specification.
+.It Fl k Ns Ar N
+Ignore the first
+.Ar N
+lines of input.
+.It Fl K Ns Ar N
+Like
+.Fl k ,
+but print the ignored lines.
+.It Fl g Ns Ar N
+The gutter width (inter-column space), normally 2, is taken to be
+.Ar N .
+.It Fl G Ns Ar N
+The gutter width has
+.Ar N
+percent of the maximum column width added to it.
+.It Fl e
+Consider each line of input as an array entry.
+.It Fl n
+On lines having fewer entries than the first line,
+use null entries to pad out the line.
+Normally, missing entries are taken from the next line of input.
+.It Fl y
+If there are too few entries to make up the output dimensions,
+pad the output by recycling the input from the beginning.
+Normally, the output is padded with blanks.
+.It Fl h
+Print the shape of the input array and do nothing else.
+The shape is just the number of lines and the number of
+entries on the first line.
+.It Fl H
+Like
+.Fl h ,
+but also print the length of each line.
+.It Fl j
+Right adjust entries within columns.
+.It Fl w Ns Ar N
+The width of the display, normally 80, is taken to be the positive
+integer
+.Ar N .
+.It Fl m
+Do not trim excess delimiters from the ends of the output array.
+.It Fl z
+Adapt column widths to fit the largest entries appearing in them.
+.El
+.Pp
+With no arguments,
+.Nm
+transposes its input, and assumes one array entry per input line
+unless the first non-ignored line is longer than the display width.
+Option letters which take numerical arguments interpret a missing
+number as zero unless otherwise indicated.
+.Sh EXAMPLES
+The
+.Nm
+utility can be used as a filter to convert the stream output
+of certain programs (e.g.,
+.Xr spell 1 ,
+.Xr du 1 ,
+.Xr file 1 ,
+.Xr look 1 ,
+.Xr nm 1 ,
+.Xr who 1 ,
+and
+.Xr wc 1 )
+into a convenient ``window'' format, as in
+.Bd -literal -offset indent
+% who | rs
+.Ed
+.Pp
+This function has been incorporated into the
+.Xr ls 1
+program, though for most programs with similar output
+.Nm
+suffices.
+.Pp
+To convert stream input into vector output and back again, use
+.Bd -literal -offset indent
+% rs 1 0 | rs 0 1
+.Ed
+.Pp
+A 10 by 10 array of random numbers from 1 to 100 and
+its transpose can be generated with
+.Bd -literal -offset indent
+% jot \-r 100 | rs 10 10 | tee array | rs \-T > tarray
+.Ed
+.Pp
+In the editor
+.Xr vi 1 ,
+a file consisting of a multi-line vector with 9 elements per line
+can undergo insertions and deletions,
+and then be neatly reshaped into 9 columns with
+.Bd -literal -offset indent
+:1,$!rs 0 9
+.Ed
+.Pp
+Finally, to sort a database by the first line of each 4-line field, try
+.Bd -literal -offset indent
+% rs \-eC 0 4 | sort | rs \-c 0 1
+.Ed
+.Sh SEE ALSO
+.Xr jot 1 ,
+.Xr pr 1 ,
+.Xr sort 1 ,
+.Xr vi 1
+.Sh BUGS
+.Bl -item
+.It
+Handles only two dimensional arrays.
+.It
+The algorithm currently reads the whole file into memory,
+so files that do not fit in memory will not be reshaped.
+.It
+Fields cannot be defined yet on character positions.
+.It
+Re-ordering of columns is not yet possible.
+.It
+There are too many options.
+.It
+Multibyte characters are not recognized.
+.El
diff --git a/text_cmds/rs/rs.c b/text_cmds/rs/rs.c
new file mode 100644
index 0000000..19cb750
--- /dev/null
+++ b/text_cmds/rs/rs.c
@@ -0,0 +1,553 @@
+/*-
+ * Copyright (c) 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) 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static const char sccsid[] = "@(#)rs.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+/*
+ *	rs - reshape a data array
+ *	Author:  John Kunze, Office of Comp. Affairs, UCB
+ *		BEWARE: lots of unfinished edges
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/usr.bin/rs/rs.c,v 1.13 2005/04/28 12:37:15 robert Exp $");
+
+#include <err.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sysexits.h>
+
+long	flags;
+#define	TRANSPOSE	000001
+#define	MTRANSPOSE	000002
+#define	ONEPERLINE	000004
+#define	ONEISEPONLY	000010
+#define	ONEOSEPONLY	000020
+#define	NOTRIMENDCOL	000040
+#define	SQUEEZE		000100
+#define	SHAPEONLY	000200
+#define	DETAILSHAPE	000400
+#define	RIGHTADJUST	001000
+#define	NULLPAD		002000
+#define	RECYCLE		004000
+#define	SKIPPRINT	010000
+#define	ICOLBOUNDS	020000
+#define	OCOLBOUNDS	040000
+#define ONEPERCHAR	0100000
+#define NOARGS		0200000
+
+short	*colwidths;
+short	*cord;
+short	*icbd;
+short	*ocbd;
+int	nelem;
+char	**elem;
+char	**endelem;
+char	*curline;
+int	allocsize = BUFSIZ;
+int	curlen;
+int	irows, icols;
+int	orows = 0, ocols = 0;
+int	maxlen;
+int	skip;
+int	propgutter;
+char	isep = ' ', osep = ' ';
+char	blank[] = "";
+int	owidth = 80, gutter = 2;
+
+void	  getargs(int, char *[]);
+void	  getfile(void);
+int	  rs_getline(void);
+char	 *getlist(short **, char *);
+char	 *getnum(int *, char *, int);
+char	**getptrs(char **);
+void	  prepfile(void);
+void	  prints(char *, int);
+void	  putfile(void);
+static void usage(void);
+
+#define	INCR(ep) do {			\
+	if (++ep >= endelem)		\
+		ep = getptrs(ep);	\
+} while(0)
+
+int
+main(int argc, char *argv[])
+{
+	getargs(argc, argv);
+	getfile();
+	if (flags & SHAPEONLY) {
+		printf("%d %d\n", irows, icols);
+		exit(0);
+	}
+	prepfile();
+	putfile();
+	exit(0);
+}
+
+void
+getfile(void)
+{
+	char *p;
+	char *endp;
+	char **ep;
+	int multisep = (flags & ONEISEPONLY ? 0 : 1);
+	int nullpad = flags & NULLPAD;
+	char **padto;
+
+	while (skip--) {
+		rs_getline();
+		if (flags & SKIPPRINT)
+			puts(curline);
+	}
+	rs_getline();
+	if (flags & NOARGS && curlen < owidth)
+		flags |= ONEPERLINE;
+	if (flags & ONEPERLINE)
+		icols = 1;
+	else				/* count cols on first line */
+		for (p = curline, endp = curline + curlen; p < endp; p++) {
+			if (*p == isep && multisep)
+				continue;
+			icols++;
+			while (*p && *p != isep)
+				p++;
+		}
+	ep = getptrs(elem);
+	p = curline;
+	do {
+		if (flags & ONEPERLINE) {
+			*ep = curline;
+			INCR(ep);		/* prepare for next entry */
+			if (maxlen < curlen)
+				maxlen = curlen;
+			irows++;
+			continue;
+		}
+		for (p = curline, endp = curline + curlen; p < endp; p++) {
+			if (*p == isep && multisep)
+				continue;	/* eat up column separators */
+			if (*p == isep)		/* must be an empty column */
+				*ep = blank;
+			else			/* store column entry */
+				*ep = p;
+			while (p < endp && *p != isep)
+				p++;		/* find end of entry */
+			*p = '\0';		/* mark end of entry */
+			if (maxlen < p - *ep)	/* update maxlen */
+				maxlen = p - *ep;
+			INCR(ep);		/* prepare for next entry */
+		}
+		irows++;			/* update row count */
+		if (nullpad) {			/* pad missing entries */
+			padto = elem + irows * icols;
+			while (ep < padto) {
+				*ep = blank;
+				INCR(ep);
+			}
+		}
+	} while (rs_getline() != EOF);
+	*ep = 0;				/* mark end of pointers */
+	nelem = ep - elem;
+}
+
+void
+putfile(void)
+{
+	char **ep;
+	int i, j, k;
+
+	ep = elem;
+	if (flags & TRANSPOSE)
+		for (i = 0; i < orows; i++) {
+			for (j = i; j < nelem; j += orows)
+				prints(ep[j], (j - i) / orows);
+			putchar('\n');
+		}
+	else
+		for (i = k = 0; i < orows; i++) {
+			for (j = 0; j < ocols; j++, k++)
+				if (k < nelem)
+					prints(ep[k], j);
+			putchar('\n');
+		}
+}
+
+void
+prints(char *s, int col)
+{
+	int n;
+	char *p = s;
+
+	while (*p)
+		p++;
+	n = (flags & ONEOSEPONLY ? 1 : colwidths[col] - (p - s));
+	if (flags & RIGHTADJUST)
+		while (n-- > 0)
+			putchar(osep);
+	for (p = s; *p; p++)
+		putchar(*p);
+	while (n-- > 0)
+		putchar(osep);
+}
+
+static void
+usage(void)
+{
+	fprintf(stderr,
+		"usage: rs [-[csCS][x][kKgGw][N]tTeEnyjhHmz] [rows [cols]]\n");
+	exit(1);
+}
+
+void
+prepfile(void)
+{
+	char **ep;
+	int  i;
+	int  j;
+	char **lp;
+	int colw;
+	int max;
+	int n;
+
+	if (!nelem)
+		exit(0);
+	gutter += maxlen * propgutter / 100.0;
+	colw = maxlen + gutter;
+	if (flags & MTRANSPOSE) {
+		orows = icols;
+		ocols = irows;
+	}
+	else if (orows == 0 && ocols == 0) {	/* decide rows and cols */
+		ocols = owidth / colw;
+		if (ocols == 0) {
+			warnx("display width %d is less than column width %d",
+					owidth, colw);
+			ocols = 1;
+		}
+		if (ocols > nelem)
+			ocols = nelem;
+		orows = nelem / ocols + (nelem % ocols ? 1 : 0);
+	}
+	else if (orows == 0)			/* decide on rows */
+		orows = nelem / ocols + (nelem % ocols ? 1 : 0);
+	else if (ocols == 0)			/* decide on cols */
+		ocols = nelem / orows + (nelem % orows ? 1 : 0);
+	lp = elem + orows * ocols;
+	while (lp > endelem) {
+		getptrs(elem + nelem);
+		lp = elem + orows * ocols;
+	}
+	if (flags & RECYCLE) {
+		for (ep = elem + nelem; ep < lp; ep++)
+			*ep = *(ep - nelem);
+		nelem = lp - elem;
+	}
+	if (!(colwidths = (short *) malloc(ocols * sizeof(short))))
+		errx(1, "malloc");
+	if (flags & SQUEEZE) {
+		ep = elem;
+		if (flags & TRANSPOSE)
+			for (i = 0; i < ocols; i++) {
+				max = 0;
+				for (j = 0; *ep != NULL && j < orows; j++)
+					if ((n = strlen(*ep++)) > max)
+						max = n;
+				colwidths[i] = max + gutter;
+			}
+		else
+			for (i = 0; i < ocols; i++) {
+				max = 0;
+				for (j = i; j < nelem; j += ocols)
+					if ((n = strlen(ep[j])) > max)
+						max = n;
+				colwidths[i] = max + gutter;
+			}
+	}
+	/*	for (i = 0; i < orows; i++) {
+			for (j = i; j < nelem; j += orows)
+				prints(ep[j], (j - i) / orows);
+			putchar('\n');
+		}
+	else
+		for (i = 0; i < orows; i++) {
+			for (j = 0; j < ocols; j++)
+				prints(*ep++, j);
+			putchar('\n');
+		}*/
+	else
+		for (i = 0; i < ocols; i++)
+			colwidths[i] = colw;
+	if (!(flags & NOTRIMENDCOL)) {
+		if (flags & RIGHTADJUST)
+			colwidths[0] -= gutter;
+		else
+			colwidths[ocols - 1] = 0;
+	}
+	n = orows * ocols;
+	if (n > nelem && (flags & RECYCLE))
+		nelem = n;
+	/*for (i = 0; i < ocols; i++)
+		warnx("%d is colwidths, nelem %d", colwidths[i], nelem);*/
+}
+
+#define	BSIZE	2048
+char	ibuf[BSIZE];		/* two screenfuls should do */
+
+int
+rs_getline(void)	/* get line; maintain curline, curlen; manage storage */
+{
+	static	int putlength;
+	static	char *endblock = ibuf + BSIZE;
+	char *p;
+	int c, i;
+
+	if (!irows) {
+		curline = ibuf;
+		putlength = flags & DETAILSHAPE;
+	}
+	else if (skip <= 0) {			/* don't waste storage */
+		curline += curlen + 1;
+		if (putlength) {	/* print length, recycle storage */
+			printf(" %d line %d\n", curlen, irows);
+			curline = ibuf;
+		}
+	}
+	if (!putlength && endblock - curline < BUFSIZ) {   /* need storage */
+		/*ww = endblock-curline; tt += ww;*/
+		/*printf("#wasted %d total %d\n",ww,tt);*/
+		if (!(curline = (char *) malloc(BSIZE)))
+			errx(1, "file too large");
+		endblock = curline + BSIZE;
+		/*printf("#endb %d curline %d\n",endblock,curline);*/
+	}
+	for (p = curline, i = 1; i < BUFSIZ; *p++ = c, i++)
+		if ((c = getchar()) == EOF || c == '\n')
+			break;
+	if (ferror(stdin)) {
+		errx(EX_IOERR, "Read error");
+	}
+	*p = '\0';
+	curlen = i - 1;
+	return(c);
+}
+
+char **
+getptrs(char **sp)
+{
+	char **p;
+
+	allocsize += allocsize;
+	p = (char **)realloc(elem, allocsize * sizeof(char *));
+	if (p == NULL)
+		err(1, "no memory");
+
+	sp += (p - elem);
+	endelem = (elem = p) + allocsize;
+	return(sp);
+}
+
+void
+getargs(int ac, char *av[])
+{
+	char *p;
+
+	if (ac == 1) {
+		flags |= NOARGS | TRANSPOSE;
+	}
+	while (--ac>0 && *++av && **av == '-')
+		for (p = *av+1; *p; p++)
+			switch (*p) {
+			case 'T':
+				flags |= MTRANSPOSE;
+			case 't':
+				flags |= TRANSPOSE;
+				break;
+			case 'c':		/* input col. separator */
+				flags |= ONEISEPONLY;
+			case 's':		/* one or more allowed */
+				if (p[1])
+					isep = *++p;
+				else
+					isep = '\t';	/* default is ^I */
+				break;
+			case 'C':
+				flags |= ONEOSEPONLY;
+			case 'S':
+				if (p[1])
+					osep = *++p;
+				else
+					osep = '\t';	/* default is ^I */
+				break;
+			case 'w':		/* window width, default 80 */
+				p = getnum(&owidth, p, 0);
+				if (owidth <= 0)
+					errx(1, "width must be a positive integer");
+				break;
+			case 'K':			/* skip N lines */
+				flags |= SKIPPRINT;
+			case 'k':			/* skip, do not print */
+				p = getnum(&skip, p, 0);
+				if (!skip)
+					skip = 1;
+				break;
+			case 'm':
+				flags |= NOTRIMENDCOL;
+				break;
+			case 'g':		/* gutter space */
+				p = getnum(&gutter, p, 0);
+				break;
+			case 'G':
+				p = getnum(&propgutter, p, 0);
+				break;
+			case 'e':		/* each line is an entry */
+				flags |= ONEPERLINE;
+				break;
+			case 'E':
+				flags |= ONEPERCHAR;
+				break;
+			case 'j':			/* right adjust */
+				flags |= RIGHTADJUST;
+				break;
+			case 'n':	/* null padding for missing values */
+				flags |= NULLPAD;
+				break;
+			case 'y':
+				flags |= RECYCLE;
+				break;
+			case 'H':			/* print shape only */
+				flags |= DETAILSHAPE;
+			case 'h':
+				flags |= SHAPEONLY;
+				break;
+			case 'z':			/* squeeze col width */
+				flags |= SQUEEZE;
+				break;
+			/*case 'p':
+				ipagespace = atoi(++p);	(default is 1)
+				break;*/
+			case 'o':			/* col order */
+				p = getlist(&cord, p);
+				break;
+			case 'b':
+				flags |= ICOLBOUNDS;
+				p = getlist(&icbd, p);
+				break;
+			case 'B':
+				flags |= OCOLBOUNDS;
+				p = getlist(&ocbd, p);
+				break;
+			default:
+				usage();
+			}
+	/*if (!osep)
+		osep = isep;*/
+	switch (ac) {
+	/*case 3:
+		opages = atoi(av[2]);*/
+	case 2:
+		if ((ocols = atoi(av[1])) < 0)
+			ocols = 0;
+	case 1:
+		if ((orows = atoi(av[0])) < 0)
+			orows = 0;
+	case 0:
+		break;
+	default:
+		errx(1, "too many arguments");
+	}
+}
+
+char *
+getlist(short **list, char *p)
+{
+	int count = 1;
+	char *t;
+
+	for (t = p + 1; *t; t++) {
+		if (!isdigit((unsigned char)*t))
+			errx(1,
+	"option %.1s requires a list of unsigned numbers separated by commas", t);
+		count++;
+		while (*t && isdigit((unsigned char)*t))
+			t++;
+		if (*t != ',')
+			break;
+	}
+	if (!(*list = (short *) malloc(count * sizeof(short))))
+		errx(1, "no list space");
+	count = 0;
+	for (t = p + 1; *t; t++) {
+		(*list)[count++] = atoi(t);
+		printf("++ %d ", (*list)[count-1]);
+		fflush(stdout);
+		while (*t && isdigit((unsigned char)*t))
+			t++;
+		if (*t != ',')
+			break;
+	}
+	(*list)[count] = 0;
+	return(t - 1);
+}
+
+/*
+ * num = number p points to; if (strict) complain
+ * returns pointer to end of num
+ */
+char *
+getnum(int *num, char *p, int strict)
+{
+	char *t = p;
+
+	if (!isdigit((unsigned char)*++t)) {
+		if (strict || *t == '-' || *t == '+')
+			errx(1, "option %.1s requires an unsigned integer", p);
+		*num = 0;
+		return(p);
+	}
+	*num = atoi(t);
+	while (*++t)
+		if (!isdigit((unsigned char)*t))
+			break;
+	return(--t);
+}