3 files changed, 261 insertions, 0 deletions

diff --git a/usr.bin/tee/Makefile b/usr.bin/tee/Makefile
new file mode 100644
index 000000000000..a713132df295
--- /dev/null
+++ b/usr.bin/tee/Makefile
@@ -0,0 +1,5 @@
+#	@(#)Makefile	8.1 (Berkeley) 6/6/93
+
+PROG=	tee
+
+.include <bsd.prog.mk>
diff --git a/usr.bin/tee/tee.1 b/usr.bin/tee/tee.1
new file mode 100644
index 000000000000..2e453cb4fa9a
--- /dev/null
+++ b/usr.bin/tee/tee.1
@@ -0,0 +1,88 @@
+.\" 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.
+.\"
+.\"     @(#)tee.1	8.1 (Berkeley) 6/6/93
+.\"
+.Dd June 6, 1993
+.Dt TEE 1
+.Os
+.Sh NAME
+.Nm tee
+.Nd pipe fitting
+.Sh SYNOPSIS
+.Nm tee
+.Op Fl ai
+.Op Ar file ...
+.Sh DESCRIPTION
+The
+.Nm tee
+utility copies standard input to standard output,
+making a copy in zero or more files.
+The output is unbuffered.
+.Pp
+The following options are available:
+.Bl -tag -width Ds
+.It Fl a
+Append the output to the files rather than
+overwriting them.
+.It Fl i
+Ignore the
+.Dv SIGINT
+signal.
+.El
+.Pp
+The following operands are available:
+.Bl -tag -width file
+.It file
+A pathname of an output
+.Ar file .
+.El
+.Pp
+The
+.Nm tee
+utility takes the default action for all signals,
+except in the event of the
+.Fl i
+option.
+.Pp
+The
+.Nm tee
+utility exits 0 on success, and >0 if an error occurs.
+.Sh STANDARDS
+The
+.Nm tee
+function is expected to be
+.Tn POSIX
+.St -p1003.2
+compatible.
diff --git a/usr.bin/tee/tee.c b/usr.bin/tee/tee.c
new file mode 100644
index 000000000000..ad1110abef30
--- /dev/null
+++ b/usr.bin/tee/tee.c
@@ -0,0 +1,168 @@
+/*
+ * Copyright (c) 1988, 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) 1988, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)tee.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <signal.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+typedef struct _list {
+	struct _list *next;
+	int fd;
+	char *name;
+} LIST;
+LIST *head;
+
+void add __P((int, char *));
+void err __P((int, const char *, ...));
+
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	register LIST *p;
+	register int n, fd, rval, wval;
+	register char *bp;
+	int append, ch, exitval;
+	char *buf;
+#define	BSIZE (8 * 1024)
+
+	append = 0;
+	while ((ch = getopt(argc, argv, "ai")) != EOF)
+		switch((char)ch) {
+		case 'a':
+			append = 1;
+			break;
+		case 'i':
+			(void)signal(SIGINT, SIG_IGN);
+			break;
+		case '?':
+		default:
+			(void)fprintf(stderr, "usage: tee [-ai] [file ...]\n");
+			exit(1);
+		}
+	argv += optind;
+	argc -= optind;
+
+	if ((buf = malloc((u_int)BSIZE)) == NULL)
+		err(1, "%s", strerror(errno));
+
+	add(STDOUT_FILENO, "stdout");
+
+	for (exitval = 0; *argv; ++argv)
+		if ((fd = open(*argv, append ? O_WRONLY|O_CREAT|O_APPEND :
+		    O_WRONLY|O_CREAT|O_TRUNC, DEFFILEMODE)) < 0) {
+			err(0, "%s: %s", *argv, strerror(errno));
+			exitval = 1;
+		} else
+			add(fd, *argv);
+
+	while ((rval = read(STDIN_FILENO, buf, BSIZE)) > 0)
+		for (p = head; p; p = p->next) {
+			n = rval;
+			bp = buf;
+			do {
+				if ((wval = write(p->fd, bp, n)) == -1) {
+					err(0, "%s: %s",
+					    p->name, strerror(errno));
+					exitval = 1;
+					break;
+				}
+				bp += wval;
+			} while (n -= wval);
+		}
+	if (rval < 0)
+		err(1, "read: %s", strerror(errno));
+	exit(exitval);
+}
+
+void
+add(fd, name)
+	int fd;
+	char *name;
+{
+	LIST *p;
+
+	if ((p = malloc((u_int)sizeof(LIST))) == NULL)
+		err(1, "%s", strerror(errno));
+	p->fd = fd;
+	p->name = name;
+	p->next = head;
+	head = p;
+}
+
+#if __STDC__
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
+
+void
+#if __STDC__
+err(int doexit, const char *fmt, ...)
+#else
+err(doexit, fmt, va_alist)
+	int doexit;
+	char *fmt;
+        va_dcl
+#endif
+{
+	va_list ap;
+#if __STDC__
+	va_start(ap, fmt);
+#else
+	va_start(ap);
+#endif
+	(void)fprintf(stderr, "tee: ");
+	(void)vfprintf(stderr, fmt, ap);
+	va_end(ap);
+	(void)fprintf(stderr, "\n");
+	if (doexit)
+		exit(1);
+}