BSD 4.4 Lite Usr.bin Sources

3 files changed, 409 insertions, 0 deletions

diff --git a/usr.bin/uniq/Makefile b/usr.bin/uniq/Makefile
new file mode 100644
index 0000000..fa0db8b
--- /dev/null
+++ b/usr.bin/uniq/Makefile
@@ -0,0 +1,5 @@
+#	@(#)Makefile	8.1 (Berkeley) 6/6/93
+
+PROG=	uniq
+
+.include <bsd.prog.mk>
diff --git a/usr.bin/uniq/uniq.1 b/usr.bin/uniq/uniq.1
new file mode 100644
index 0000000..0898e0e
--- /dev/null
+++ b/usr.bin/uniq/uniq.1
@@ -0,0 +1,130 @@
+.\" Copyright (c) 1991, 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.
+.\"
+.\"     @(#)uniq.1	8.1 (Berkeley) 6/6/93
+.\"
+.Dd June 6, 1993
+.Dt UNIQ 1
+.Os
+.Sh NAME
+.Nm uniq
+.Nd report or filter out repeated lines in a file
+.Sh SYNOPSIS
+.Nm uniq
+.Op Fl c | Fl d | Fl u
+.Op Fl f Ar fields
+.Op Fl s Ar chars
+.Oo
+.Ar input_file
+.Op Ar output_file
+.Oc
+.Sh DESCRIPTION
+The
+.Nm uniq
+utility reads the standard input comparing adjacent lines, and writes
+a copy of each unique input line to the standard output.
+The second and succeeding copies of identical adjacent input lines are
+not written.
+Repeated lines in the input will not be detected if they are not adjacent,
+so it may be necessary to sort the files first.
+.Pp
+The following options are available:
+.Bl -tag -width Ds
+.It Fl c
+Precede each output line with the count of the number of times the line
+occurred in the input, followed by a single space.
+.It Fl d
+Don't output lines that are not repeated in the input.
+.It Fl f Ar fields
+Ignore the first
+.Ar fields
+in each input line when doing comparisons.
+A field is a string of non-blank characters separated from adjacent fields
+by blanks.
+Field numbers are one based, i.e. the first field is field one.
+.It Fl s Ar chars
+Ignore the first
+.Ar chars
+characters in each input line when doing comparisons.
+If specified in conjunction with the
+.Fl f
+option, the first
+.Ar chars
+characters after the first
+.Ar fields
+fields will be ignored.
+Character numbers are one based, i.e. the first character is character one.
+.It Fl u
+Don't output lines that are repeated in the input.
+.\".It Fl Ns Ar n
+.\"(Deprecated; replaced by
+.\".Fl f ) .
+.\"Ignore the first n
+.\"fields on each input line when doing comparisons,
+.\"where n is a number.
+.\"A field is a string of non-blank
+.\"characters separated from adjacent fields
+.\"by blanks.
+.\".It Cm \&\(pl Ns Ar n
+.\"(Deprecated; replaced by
+.\".Fl s ) .
+.\"Ignore the first
+.\".Ar m
+.\"characters when doing comparisons, where
+.\".Ar m
+.\"is a
+.\"number.
+.El
+.Pp
+If additional arguments are specified on the command line, the first
+such argument is used as the name of an input file, the second is used
+as the name of an output file.
+.Pp
+The
+.Nm uniq
+utility exits 0 on success, and >0 if an error occurs.
+.Sh COMPATIBILITY
+The historic
+.Cm \&\(pl Ns Ar number
+and
+.Fl Ns Ar number
+options have been deprecated but are still supported in this implementation.
+.Sh SEE ALSO
+.Xr sort 1
+.Sh STANDARDS
+The
+.Nm uniq
+utility is expected to be
+.St -p1003.2
+compatible.
diff --git a/usr.bin/uniq/uniq.c b/usr.bin/uniq/uniq.c
new file mode 100644
index 0000000..e84f82e
--- /dev/null
+++ b/usr.bin/uniq/uniq.c
@@ -0,0 +1,274 @@
+/*
+ * Copyright (c) 1989, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Case Larsen.
+ *
+ * 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) 1989, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)uniq.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include <errno.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define	MAXLINELEN	(8 * 1024)
+
+int cflag, dflag, uflag;
+int numchars, numfields, repeats;
+
+void	 err __P((const char *, ...));
+FILE	*file __P((char *, char *));
+void	 show __P((FILE *, char *));
+char	*skip __P((char *));
+void	 obsolete __P((char *[]));
+void	 usage __P((void));
+
+int
+main (argc, argv)
+	int argc;
+	char *argv[];
+{
+	register char *t1, *t2;
+	FILE *ifp, *ofp;
+	int ch;
+	char *prevline, *thisline, *p;
+
+	obsolete(argv);
+	while ((ch = getopt(argc, argv, "-cdf:s:u")) != EOF)
+		switch (ch) {
+		case '-':
+			--optind;
+			goto done;
+		case 'c':
+			cflag = 1;
+			break;
+		case 'd':
+			dflag = 1;
+			break;
+		case 'f':
+			numfields = strtol(optarg, &p, 10);
+			if (numfields < 0 || *p)
+				err("illegal field skip value: %s", optarg);
+			break;
+		case 's':
+			numchars = strtol(optarg, &p, 10);
+			if (numchars < 0 || *p)
+				err("illegal character skip value: %s", optarg);
+			break;
+		case 'u':
+			uflag = 1;
+			break;
+		case '?':
+		default:
+			usage();
+	}
+
+done:	argc -= optind;
+	argv +=optind;
+
+	/* If no flags are set, default is -d -u. */
+	if (cflag) {
+		if (dflag || uflag)
+			usage();
+	} else if (!dflag && !uflag)
+		dflag = uflag = 1;
+
+	switch(argc) {
+	case 0:
+		ifp = stdin;
+		ofp = stdout;
+		break;
+	case 1:
+		ifp = file(argv[0], "r");
+		ofp = stdout;
+		break;
+	case 2:
+		ifp = file(argv[0], "r");
+		ofp = file(argv[1], "w");
+		break;
+	default:
+		usage();
+	}
+
+	prevline = malloc(MAXLINELEN);
+	thisline = malloc(MAXLINELEN);
+	if (prevline == NULL || thisline == NULL)
+		err("%s", strerror(errno));
+
+	if (fgets(prevline, MAXLINELEN, ifp) == NULL)
+		exit(0);
+
+	while (fgets(thisline, MAXLINELEN, ifp)) {
+		/* If requested get the chosen fields + character offsets. */
+		if (numfields || numchars) {
+			t1 = skip(thisline);
+			t2 = skip(prevline);
+		} else {
+			t1 = thisline;
+			t2 = prevline;
+		}
+
+		/* If different, print; set previous to new value. */
+		if (strcmp(t1, t2)) {
+			show(ofp, prevline);
+			t1 = prevline;
+			prevline = thisline;
+			thisline = t1;
+			repeats = 0;
+		} else
+			++repeats;
+	}
+	show(ofp, prevline);
+	exit(0);
+}
+
+/*
+ * show --
+ *	Output a line depending on the flags and number of repetitions
+ *	of the line.
+ */
+void
+show(ofp, str)
+	FILE *ofp;
+	char *str;
+{
+	if (cflag)
+		(void)fprintf(ofp, "%4d %s", repeats + 1, str);
+	if (dflag && repeats || uflag && !repeats)
+		(void)fprintf(ofp, "%s", str);
+}
+
+char *
+skip(str)
+	register char *str;
+{
+	register int infield, nchars, nfields;
+
+	for (nfields = numfields, infield = 0; nfields && *str; ++str)
+		if (isspace(*str)) {
+			if (infield) {
+				infield = 0;
+				--nfields;
+			}
+		} else if (!infield)
+			infield = 1;
+	for (nchars = numchars; nchars-- && *str; ++str);
+	return(str);
+}
+
+FILE *
+file(name, mode)
+	char *name, *mode;
+{
+	FILE *fp;
+
+	if ((fp = fopen(name, mode)) == NULL)
+		err("%s: %s", name, strerror(errno));
+	return(fp);
+}
+
+void
+obsolete(argv)
+	char *argv[];
+{
+	int len;
+	char *ap, *p, *start;
+
+	while (ap = *++argv) {
+		/* Return if "--" or not an option of any form. */
+		if (ap[0] != '-') {
+			if (ap[0] != '+')
+				return;
+		} else if (ap[1] == '-')
+			return;
+		if (!isdigit(ap[1]))
+			continue;
+		/*
+		 * Digit signifies an old-style option.  Malloc space for dash,
+		 * new option and argument.
+		 */
+		len = strlen(ap);
+		if ((start = p = malloc(len + 3)) == NULL)
+			err("%s", strerror(errno));
+		*p++ = '-';
+		*p++ = ap[0] == '+' ? 's' : 'f';
+		(void)strcpy(p, ap + 1);
+		*argv = start;
+	}
+}
+
+void
+usage()
+{
+	(void)fprintf(stderr,
+	    "usage: uniq [-c | -du] [-f fields] [-s chars] [input [output]]\n");
+	exit(1);
+}
+
+#if __STDC__
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
+
+void
+#if __STDC__
+err(const char *fmt, ...)
+#else
+err(fmt, va_alist)
+	char *fmt;
+        va_dcl
+#endif
+{
+	va_list ap;
+#if __STDC__
+	va_start(ap, fmt);
+#else
+	va_start(ap);
+#endif
+	(void)fprintf(stderr, "uniq: ");
+	(void)vfprintf(stderr, fmt, ap);
+	va_end(ap);
+	(void)fprintf(stderr, "\n");
+	exit(1);
+	/* NOTREACHED */
+}