3 files changed, 793 insertions, 0 deletions

diff --git a/usr.bin/join/Makefile b/usr.bin/join/Makefile
new file mode 100644
index 000000000000..3fa8629152c1
--- /dev/null
+++ b/usr.bin/join/Makefile
@@ -0,0 +1,5 @@
+#	@(#)Makefile	8.1 (Berkeley) 6/6/93
+
+PROG=	join
+
+.include <bsd.prog.mk>
diff --git a/usr.bin/join/join.1 b/usr.bin/join/join.1
new file mode 100644
index 000000000000..fa383c6a264a
--- /dev/null
+++ b/usr.bin/join/join.1
@@ -0,0 +1,206 @@
+.\" Copyright (c) 1990, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the Institute of Electrical and Electronics Engineers, Inc.
+.\"
+.\" 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.
+.\"
+.\"	@(#)join.1	8.1 (Berkeley) 6/6/93
+.\"
+.Dd June 6, 1993
+.Dt JOIN 1
+.Os
+.Sh NAME
+.Nm join
+.Nd relational database operator
+.Sh SYNOPSIS
+.Nm join
+.Oo
+.Fl a Ar file_number | Fl v Ar file_number
+.Oc
+.Op Fl e Ar string
+.Op Fl j Ar file_number field
+.Op Fl o Ar list
+.Bk -words
+.Ek
+.Op Fl t Ar char
+.Op Fl \&1 Ar field
+.Op Fl \&2 Ar field
+.Ar file1
+.Ar file2
+.Sh DESCRIPTION
+The join utility performs an ``equality join'' on the specified files
+and writes the result to the standard output.
+The ``join field'' is the field in each file by which the files are compared.
+The first field in each line is used by default.
+There is one line in the output for each pair of lines in
+.Ar file1
+and
+.Ar file2
+which have identical join fields.
+Each output line consists of the join field, the remaining fields from
+.Ar file1
+and then the remaining fields from
+.Ar file2 .
+.Pp
+The default field separators are tab and space characters.
+In this case, multiple tabs and spaces count as a single field separator,
+and leading tabs and spaces are ignored.
+The default output field separator is a single space character.
+.Pp
+Many of the options use file and field numbers.
+Both file numbers and field numbers are 1 based, i.e. the first file on
+the command line is file number 1 and the first field is field number 1.
+The following options are available:
+.Bl -tag -width Fl
+.It Fl a Ar file_number
+In addition to the default output, produce a line for each unpairable
+line in file
+.Ar file_number .
+.It Fl e Ar string
+Replace empty output fields with
+.Ar string .
+.It Fl o Ar list
+The
+.Fl o
+option specifies the fields that will be output from each file for
+each line with matching join fields.
+Each element of
+.Ar list
+has the form
+.Ql file_number.field ,
+where
+.Ar file_number
+is a file number and
+.Ar field
+is a field number.
+The elements of list must be either comma (``,'') or whitespace separated.
+(The latter requires quoting to protect it from the shell, or, a simpler
+approach is to use multiple
+.Fl o
+options.)
+.It Fl t Ar char
+Use character
+.Ar char
+as a field delimiter for both input and output.
+Every occurrence of
+.Ar char
+in a line is significant.
+.It Fl v Ar file_number
+Do not display the default output, but display a line for each unpairable
+line in file
+.Ar file_number .
+The options
+.Fl v Ar 1
+and
+.Fl v Ar 2
+may be specified at the same time.
+.It Fl 1 Ar field
+Join on the
+.Ar field Ns 'th
+field of file 1.
+.It Fl 2 Ar field
+Join on the
+.Ar field Ns 'th
+field of file 2.
+.El
+.Pp
+When the default field delimiter characters are used, the files to be joined
+should be ordered in the collating sequence of
+.Xr sort 1 ,
+using the
+.Fl b
+option, on the fields on which they are to be joined, otherwise
+.Nm join
+may not report all field matches.
+When the field delimiter characters are specified by the
+.Fl t
+option, the collating sequence should be the same as
+.Xr sort
+without the
+.Fl b
+option.
+.Pp
+If one of the arguments
+.Ar file1
+or
+.Ar file2
+is ``-'', the standard input is used.
+.Pp
+The
+.Nm join
+utility exits 0 on success, and >0 if an error occurs.
+.Sh COMPATIBILITY
+For compatibility with historic versions of
+.Nm join ,
+the following options are available:
+.Bl -tag -width Fl
+.It Fl a
+In addition to the default output, produce a line for each unpairable line
+in both file 1 and file 2.
+.It Fl j1 Ar field
+Join on the
+.Ar field Ns 'th
+field of file 1.
+.It Fl j2 Ar field
+Join on the
+.Ar field Ns 'th
+field of file 2.
+.It Fl j Ar field
+Join on the
+.Ar field Ns 'th
+field of both file 1 and file 2.
+.It Fl o Ar list ...
+Historical implementations of
+.Nm join
+permitted multiple arguments to the
+.Fl o
+option.
+These arguments were of the form ``file_number.field_number'' as described
+for the current
+.Fl o
+option.
+This has obvious difficulties in the presence of files named ``1.2''.
+.El
+.Pp
+These options are available only so historic shellscripts don't require
+modification and should not be used.
+.Sh STANDARDS
+The
+.Nm join
+command is expected to be
+.St -p1003.2
+compatible.
+.Sh SEE ALSO
+.Xr awk 1 ,
+.Xr comm 1 ,
+.Xr paste 1 ,
+.Xr sort 1 ,
+.Xr uniq 1
diff --git a/usr.bin/join/join.c b/usr.bin/join/join.c
new file mode 100644
index 000000000000..587fa840f6cf
--- /dev/null
+++ b/usr.bin/join/join.c
@@ -0,0 +1,582 @@
+/*-
+ * Copyright (c) 1991, 1993, 1994
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Steve Hayman of the Computer Science Department, Indiana University,
+ * Michiro Hikida and David Goodenough.
+ *
+ * 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 copyright[] =
+"@(#) Copyright (c) 1991, 1993, 1994\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)join.c	8.3 (Berkeley) 4/16/94";
+#endif /* not lint */
+
+#include <sys/param.h>
+
+#include <ctype.h>
+#include <err.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/*
+ * There's a structure per input file which encapsulates the state of the
+ * file.  We repeatedly read lines from each file until we've read in all
+ * the consecutive lines from the file with a common join field.  Then we
+ * compare the set of lines with an equivalent set from the other file.
+ */
+typedef struct {
+	char *line;		/* line */
+	u_long linealloc;	/* line allocated count */
+	char **fields;		/* line field(s) */
+	u_long fieldcnt;	/* line field(s) count */
+	u_long fieldalloc;	/* line field(s) allocated count */
+} LINE;
+
+typedef struct {
+	FILE *fp;		/* file descriptor */
+	u_long joinf;		/* join field (-1, -2, -j) */
+	int unpair;		/* output unpairable lines (-a) */
+	int number;		/* 1 for file 1, 2 for file 2 */
+
+	LINE *set;		/* set of lines with same field */
+	int pushbool;		/* if pushback is set */
+	u_long pushback;	/* line on the stack */
+	u_long setcnt;		/* set count */
+	u_long setalloc;	/* set allocated count */
+} INPUT;
+INPUT input1 = { NULL, 0, 0, 1, NULL, 0, 0, 0, },
+      input2 = { NULL, 0, 0, 2, NULL, 0, 0, 0, };
+
+typedef struct {
+	u_long	filenum;	/* file number */
+	u_long	fieldno;	/* field number */
+} OLIST;
+OLIST *olist;			/* output field list */
+u_long olistcnt;		/* output field list count */
+u_long olistalloc;		/* output field allocated count */
+
+int joinout = 1;		/* show lines with matched join fields (-v) */
+int needsep;			/* need separator character */
+int spans = 1;			/* span multiple delimiters (-t) */
+char *empty;			/* empty field replacement string (-e) */
+char *tabchar = " \t";		/* delimiter characters (-t) */
+
+int  cmp __P((LINE *, u_long, LINE *, u_long));
+void fieldarg __P((char *));
+void joinlines __P((INPUT *, INPUT *));
+void obsolete __P((char **));
+void outfield __P((LINE *, u_long, int));
+void outoneline __P((INPUT *, LINE *));
+void outtwoline __P((INPUT *, LINE *, INPUT *, LINE *));
+void slurp __P((INPUT *));
+void usage __P((void));
+
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	INPUT *F1, *F2;
+	int aflag, ch, cval, vflag;
+	char *end;
+
+	F1 = &input1;
+	F2 = &input2;
+
+	aflag = vflag = 0;
+	obsolete(argv);
+	while ((ch = getopt(argc, argv, "\01a:e:j:1:2:o:t:v:")) != EOF) {
+		switch (ch) {
+		case '\01':		/* See comment in obsolete(). */
+			aflag = 1;
+			F1->unpair = F2->unpair = 1;
+			break;
+		case '1':
+			if ((F1->joinf = strtol(optarg, &end, 10)) < 1)
+				errx(1, "-1 option field number less than 1");
+			if (*end)
+				errx(1, "illegal field number -- %s", optarg);
+			--F1->joinf;
+			break;
+		case '2':
+			if ((F2->joinf = strtol(optarg, &end, 10)) < 1)
+				errx(1, "-2 option field number less than 1");
+			if (*end)
+				errx(1, "illegal field number -- %s", optarg);
+			--F2->joinf;
+			break;
+		case 'a':
+			aflag = 1;
+			switch(strtol(optarg, &end, 10)) {
+			case 1:
+				F1->unpair = 1;
+				break;
+			case 2:
+				F2->unpair = 1;
+				break;
+			default:
+				errx(1, "-a option file number not 1 or 2");
+				break;
+			}
+			if (*end)
+				errx(1, "illegal file number -- %s", optarg);
+			break;
+		case 'e':
+			empty = optarg;
+			break;
+		case 'j':
+			if ((F1->joinf = F2->joinf =
+			    strtol(optarg, &end, 10)) < 1)
+				errx(1, "-j option field number less than 1");
+			if (*end)
+				errx(1, "illegal field number -- %s", optarg);
+			--F1->joinf;
+			--F2->joinf;
+			break;
+		case 'o':
+			fieldarg(optarg);
+			break;
+		case 't':
+			spans = 0;
+			if (strlen(tabchar = optarg) != 1)
+				errx(1, "illegal tab character specification");
+			break;
+		case 'v':
+			vflag = 1;
+			joinout = 0;
+			switch (strtol(optarg, &end, 10)) {
+			case 1:
+				F1->unpair = 1;
+				break;
+			case 2:
+				F2->unpair = 1;
+				break;
+			default:
+				errx(1, "-v option file number not 1 or 2");
+				break;
+			}
+			if (*end)
+				errx(1, "illegal file number -- %s", optarg);
+			break;
+		case '?':
+		default:
+			usage();
+		}
+	}
+	argc -= optind;
+	argv += optind;
+
+	if (aflag && vflag)
+		errx(1, "the -a and -v options are mutually exclusive");
+
+	if (argc != 2)
+		usage();
+
+	/* Open the files; "-" means stdin. */
+	if (!strcmp(*argv, "-"))
+		F1->fp = stdin;
+	else if ((F1->fp = fopen(*argv, "r")) == NULL)
+		err(1, "%s", *argv);
+	++argv;
+	if (!strcmp(*argv, "-"))
+		F2->fp = stdin;
+	else if ((F2->fp = fopen(*argv, "r")) == NULL)
+		err(1, "%s", *argv);
+	if (F1->fp == stdin && F2->fp == stdin)
+		errx(1, "only one input file may be stdin");
+
+	slurp(F1);
+	slurp(F2);
+	while (F1->setcnt && F2->setcnt) {
+		cval = cmp(F1->set, F1->joinf, F2->set, F2->joinf);
+		if (cval == 0) {
+			/* Oh joy, oh rapture, oh beauty divine! */
+			if (joinout)
+				joinlines(F1, F2);
+			slurp(F1);
+			slurp(F2);
+		} else if (cval < 0) {
+			/* File 1 takes the lead... */
+			if (F1->unpair)
+				joinlines(F1, NULL);
+			slurp(F1);
+		} else {
+			/* File 2 takes the lead... */
+			if (F2->unpair)
+				joinlines(F2, NULL);
+			slurp(F2);
+		}
+	}
+
+	/*
+	 * Now that one of the files is used up, optionally output any
+	 * remaining lines from the other file.
+	 */
+	if (F1->unpair)
+		while (F1->setcnt) {
+			joinlines(F1, NULL);
+			slurp(F1);
+		}
+	if (F2->unpair)
+		while (F2->setcnt) {
+			joinlines(F2, NULL);
+			slurp(F2);
+		}
+	exit(0);
+}
+
+void
+slurp(F)
+	INPUT *F;
+{
+	LINE *lp, *lastlp, tmp;
+	size_t len;
+	int cnt;
+	char *bp, *fieldp;
+
+	/*
+	 * Read all of the lines from an input file that have the same
+	 * join field.
+	 */
+	F->setcnt = 0;
+	for (lastlp = NULL;; ++F->setcnt, lastlp = lp) {
+		/*
+		 * If we're out of space to hold line structures, allocate
+		 * more.  Initialize the structure so that we know that this
+		 * is new space.
+		 */
+		if (F->setcnt == F->setalloc) {
+			cnt = F->setalloc;
+			F->setalloc += 50;
+			if ((F->set = realloc(F->set,
+			    F->setalloc * sizeof(LINE))) == NULL)
+				err(1, NULL);
+			memset(F->set + cnt, 0, 50 * sizeof(LINE));
+		}
+			
+		/*
+		 * Get any pushed back line, else get the next line.  Allocate
+		 * space as necessary.  If taking the line from the stack swap
+		 * the two structures so that we don't lose space allocated to
+		 * either structure.  This could be avoided by doing another
+		 * level of indirection, but it's probably okay as is.
+		 * but it's probably okay as is.
+		 */
+		lp = &F->set[F->setcnt];
+		if (F->pushbool) {
+			tmp = F->set[F->setcnt];
+			F->set[F->setcnt] = F->set[F->pushback];
+			F->set[F->pushback] = tmp;
+			F->pushbool = 0;
+			continue;
+		}
+		if ((bp = fgetln(F->fp, &len)) == NULL)
+			return;
+		if (lp->linealloc <= len + 1) {
+			lp->linealloc += MAX(100, len + 1);
+			if ((lp->line =
+			    realloc(lp->line, lp->linealloc)) == NULL)
+				err(1, NULL);
+		}
+		memmove(lp->line, bp, len);
+
+		/* Replace trailing newline, if it exists. */
+		if (bp[len - 1] == '\n')
+			lp->line[len - 1] = '\0';
+		else
+			lp->line[len] = '\0';
+		bp = lp->line;
+
+		/* Split the line into fields, allocate space as necessary. */
+		lp->fieldcnt = 0;
+		while ((fieldp = strsep(&bp, tabchar)) != NULL) {
+			if (spans && *fieldp == '\0')
+				continue;
+			if (lp->fieldcnt == lp->fieldalloc) {
+				lp->fieldalloc += 50;
+				if ((lp->fields = realloc(lp->fields,
+				    lp->fieldalloc * sizeof(char *))) == NULL)
+					err(1, NULL);
+			}
+			lp->fields[lp->fieldcnt++] = fieldp;
+		}
+
+		/* See if the join field value has changed. */
+		if (lastlp != NULL && cmp(lp, F->joinf, lastlp, F->joinf)) {
+			F->pushbool = 1;
+			F->pushback = F->setcnt;
+			break;
+		}
+	}
+}
+
+int
+cmp(lp1, fieldno1, lp2, fieldno2)
+	LINE *lp1, *lp2;
+	u_long fieldno1, fieldno2;
+{
+	if (lp1->fieldcnt < fieldno1)
+		return (lp2->fieldcnt < fieldno2 ? 0 : 1);
+	if (lp2->fieldcnt < fieldno2)
+		return (-1);
+	return (strcmp(lp1->fields[fieldno1], lp2->fields[fieldno2]));
+}
+
+void
+joinlines(F1, F2)
+	INPUT *F1, *F2;
+{
+	int cnt1, cnt2;
+
+	/*
+	 * Output the results of a join comparison.  The output may be from
+	 * either file 1 or file 2 (in which case the first argument is the
+	 * file from which to output) or from both.
+	 */
+	if (F2 == NULL) {
+		for (cnt1 = 0; cnt1 < F1->setcnt; ++cnt1)
+			outoneline(F1, &F1->set[cnt1]);
+		return;
+	}
+	for (cnt1 = 0; cnt1 < F1->setcnt; ++cnt1)
+		for (cnt2 = 0; cnt2 < F2->setcnt; ++cnt2)
+			outtwoline(F1, &F1->set[cnt1], F2, &F2->set[cnt2]);
+}
+
+void
+outoneline(F, lp)
+	INPUT *F;
+	LINE *lp;
+{
+	int cnt;
+
+	/*
+	 * Output a single line from one of the files, according to the
+	 * join rules.  This happens when we are writing unmatched single
+	 * lines.  Output empty fields in the right places.
+	 */
+	if (olist)
+		for (cnt = 0; cnt < olistcnt; ++cnt) {
+			if (olist[cnt].filenum == F->number)
+				outfield(lp, olist[cnt].fieldno, 0);
+			else
+				outfield(lp, 0, 1);
+		}
+	else
+		for (cnt = 0; cnt < lp->fieldcnt; ++cnt)
+			outfield(lp, cnt, 0);
+	(void)printf("\n");
+	if (ferror(stdout))
+		err(1, "stdout");
+	needsep = 0;
+}
+
+void
+outtwoline(F1, lp1, F2, lp2)
+	INPUT *F1, *F2;
+	LINE *lp1, *lp2;
+{
+	int cnt;
+
+	/* Output a pair of lines according to the join list (if any). */
+	if (olist)
+		for (cnt = 0; cnt < olistcnt; ++cnt)
+			if (olist[cnt].filenum == 1)
+				outfield(lp1, olist[cnt].fieldno, 0);
+			else /* if (olist[cnt].filenum == 2) */
+				outfield(lp2, olist[cnt].fieldno, 0);
+	else {
+		/*
+		 * Output the join field, then the remaining fields from F1
+		 * and F2.
+		 */
+		outfield(lp1, F1->joinf, 0);
+		for (cnt = 0; cnt < lp1->fieldcnt; ++cnt)
+			if (F1->joinf != cnt)
+				outfield(lp1, cnt, 0);
+		for (cnt = 0; cnt < lp2->fieldcnt; ++cnt)
+			if (F2->joinf != cnt)
+				outfield(lp2, cnt, 0);
+	}
+	(void)printf("\n");
+	if (ferror(stdout))
+		err(1, "stdout");
+	needsep = 0;
+}
+
+void
+outfield(lp, fieldno, out_empty)
+	LINE *lp;
+	u_long fieldno;
+	int out_empty;
+{
+	if (needsep++)
+		(void)printf("%c", *tabchar);
+	if (!ferror(stdout))
+		if (lp->fieldcnt < fieldno || out_empty) {
+			if (empty != NULL)
+				(void)printf("%s", empty);
+		} else {
+			if (*lp->fields[fieldno] == '\0')
+				return;
+			(void)printf("%s", lp->fields[fieldno]);
+		}
+	if (ferror(stdout))
+		err(1, "stdout");
+}
+
+/*
+ * Convert an output list argument "2.1, 1.3, 2.4" into an array of output
+ * fields.
+ */
+void
+fieldarg(option)
+	char *option;
+{
+	u_long fieldno;
+	char *end, *token;
+
+	while ((token = strsep(&option, " \t")) != NULL) {
+		if (*token == '\0')
+			continue;
+		if (token[0] != '1' && token[0] != '2' || token[1] != '.')
+			errx(1, "malformed -o option field");
+		fieldno = strtol(token + 2, &end, 10);
+		if (*end)
+			errx(1, "malformed -o option field");
+		if (fieldno == 0)
+			errx(1, "field numbers are 1 based");
+		if (olistcnt == olistalloc) {
+			olistalloc += 50;
+			if ((olist = realloc(olist,
+			    olistalloc * sizeof(OLIST))) == NULL)
+				err(1, NULL);
+		}
+		olist[olistcnt].filenum = token[0] - '0';
+		olist[olistcnt].fieldno = fieldno - 1;
+		++olistcnt;
+	}
+}
+
+void
+obsolete(argv)
+	char **argv;
+{
+	int len;
+	char **p, *ap, *t;
+
+	while ((ap = *++argv) != NULL) {
+		/* Return if "--". */
+		if (ap[0] == '-' && ap[1] == '-')
+			return;
+		switch (ap[1]) {
+		case 'a':
+			/* 
+			 * The original join allowed "-a", which meant the
+			 * same as -a1 plus -a2.  POSIX 1003.2, Draft 11.2
+			 * only specifies this as "-a 1" and "a -2", so we
+			 * have to use another option flag, one that is
+			 * unlikely to ever be used or accidentally entered
+			 * on the command line.  (Well, we could reallocate
+			 * the argv array, but that hardly seems worthwhile.)
+			 */
+			if (ap[2] == '\0')
+				ap[1] = '\01';
+			break;
+		case 'j':
+			/*
+			 * The original join allowed "-j[12] arg" and "-j arg".
+			 * Convert the former to "-[12] arg".  Don't convert
+			 * the latter since getopt(3) can handle it.
+			 */
+			switch(ap[2]) {
+			case '1':
+				if (ap[3] != '\0')
+					goto jbad;
+				ap[1] = '1';
+				ap[2] = '\0';
+				break;
+			case '2':
+				if (ap[3] != '\0')
+					goto jbad;
+				ap[1] = '2';
+				ap[2] = '\0';
+				break;
+			case '\0':
+				break;
+			default:
+jbad:				errx(1, "illegal option -- %s", ap);
+				usage();
+			}
+			break;
+		case 'o':
+			/*
+			 * The original join allowed "-o arg arg".
+			 * Convert to "-o arg -o arg".
+			 */
+			if (ap[2] != '\0')
+				break;
+			for (p = argv + 2; *p; ++p) {
+				if (p[0][0] != '1' &&
+				    p[0][0] != '2' || p[0][1] != '.')
+					break;
+				len = strlen(*p);
+				if (len - 2 != strspn(*p + 2, "0123456789"))
+					break;
+				if ((t = malloc(len + 3)) == NULL)
+					err(1, NULL);
+				t[0] = '-';
+				t[1] = 'o';
+				memmove(t + 2, *p, len + 1);
+				*p = t;
+			}
+			argv = p - 1;
+			break;
+		}
+	}
+}
+
+void
+usage()
+{
+	(void)fprintf(stderr, "%s%s\n",
+	    "usage: join [-a fileno | -v fileno ] [-e string] [-1 field] ",
+	    "[-2 field]\n            [-o list] [-t char] file1 file2");
+	exit(1);
+}