initial import of NetBSD tree

3 files changed, 183 insertions, 0 deletions

diff --git a/usr.bin/unvis/Makefile b/usr.bin/unvis/Makefile
new file mode 100644
index 00000000000..677e61d94d8
--- /dev/null
+++ b/usr.bin/unvis/Makefile
@@ -0,0 +1,6 @@
+#	$NetBSD: Makefile,v 1.3 1994/12/06 07:36:07 jtc Exp $
+#	@(#)Makefile	8.1 (Berkeley) 6/6/93
+
+PROG=	unvis
+
+.include <bsd.prog.mk>
diff --git a/usr.bin/unvis/unvis.1 b/usr.bin/unvis/unvis.1
new file mode 100644
index 00000000000..54b325fb318
--- /dev/null
+++ b/usr.bin/unvis/unvis.1
@@ -0,0 +1,59 @@
+.\"	$NetBSD: unvis.1,v 1.3 1994/12/06 07:36:08 jtc Exp $
+.\"
+.\" Copyright (c) 1989, 1990, 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.
+.\"
+.\"     @(#)unvis.1	8.1 (Berkeley) 6/6/93
+.\"
+.Dd June 6, 1993
+.Dt UNVIS 1
+.Os BSD 4.4
+.Sh NAME
+.Nm unvis
+.Nd "revert a visual representation of data back to original form"
+.Sh SYNOPSIS
+.Nm unvis
+.Op Ar file ...
+.Sh DESCRIPTION
+.Nm Unvis
+is the inverse function of
+.Xr vis 1 .
+It reverts
+a visual representation of data back to its original form on standard output.
+.Sh SEE ALSO
+.Xr vis 1 ,
+.Xr unvis 3 ,
+.Xr vis 3
+.Sh HISTORY
+The
+.Nm
+command appears in
+.Bx 4.4 .
diff --git a/usr.bin/unvis/unvis.c b/usr.bin/unvis/unvis.c
new file mode 100644
index 00000000000..82deb92f06b
--- /dev/null
+++ b/usr.bin/unvis/unvis.c
@@ -0,0 +1,118 @@
+/*-
+ * Copyright (c) 1989, 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 char copyright[] =
+"@(#) Copyright (c) 1989, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)unvis.c	8.1 (Berkeley) 6/6/93";
+#endif
+static char rcsid[] = "$Id: unvis.c,v 1.1 1995/10/18 08:46:30 deraadt Exp $";
+#endif /* not lint */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <err.h>
+#include <vis.h>
+
+void process __P((FILE *fp, const char *filename));
+
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	FILE *fp;
+	int ch;
+
+	while ((ch = getopt(argc, argv, "")) != EOF)
+		switch((char)ch) {
+		case '?':
+		default:
+			(void) fprintf(stderr, "usage: unvis [file...]\n");
+			exit(1);
+		}
+	argc -= optind;
+	argv += optind;
+
+	if (*argv)
+		while (*argv) {
+			if ((fp=fopen(*argv, "r")) != NULL)
+				process(fp, *argv);
+			else
+				warn("%s", *argv);
+			argv++;
+		}
+	else
+		process(stdin, "<stdin>");
+	exit(0);
+}
+
+void
+process(fp, filename)
+	FILE *fp;
+	const char *filename;
+{
+	register int offset = 0, c, ret;
+	int state = 0;
+	char outc;
+
+	while ((c = getc(fp)) != EOF) {
+		offset++;
+	again:
+		switch(ret = unvis(&outc, (char)c, &state, 0)) {
+		case UNVIS_VALID:
+			putchar(outc);
+			break;
+		case UNVIS_VALIDPUSH:
+			putchar(outc);
+			goto again;
+		case UNVIS_SYNBAD:
+			warnx("%s: offset: %d: can't decode", filename, offset);
+			state = 0;
+			break;
+		case 0:
+		case UNVIS_NOCHAR:
+			break;
+		default:
+			errx(1, "bad return value (%d), can't happen", ret);
+			/* NOTREACHED */
+		}
+	}
+	if (unvis(&outc, (char)0, &state, UNVIS_END) == UNVIS_VALID)
+		putchar(outc);
+}