BSD 4.4 Lite Usr.bin Sources

3 files changed, 203 insertions, 0 deletions

diff --git a/usr.bin/printenv/Makefile b/usr.bin/printenv/Makefile
new file mode 100644
index 0000000..94975bd
--- /dev/null
+++ b/usr.bin/printenv/Makefile
@@ -0,0 +1,6 @@
+#	@(#)Makefile	8.1 (Berkeley) 6/6/93
+
+PROG=	printenv
+MLINKS=	printenv.1 env.1
+
+.include <bsd.prog.mk>
diff --git a/usr.bin/printenv/printenv.1 b/usr.bin/printenv/printenv.1
new file mode 100644
index 0000000..77d78f8
--- /dev/null
+++ b/usr.bin/printenv/printenv.1
@@ -0,0 +1,98 @@
+.\" Copyright (c) 1980, 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.
+.\"
+.\"	@(#)printenv.1	8.1 (Berkeley) 6/6/93
+.\"
+.Dd June 6, 1993
+.Dt PRINTENV 1
+.Os BSD 3
+.Sh NAME
+.Nm printenv , env
+.Nd print out the environment, set and print environment
+.Sh SYNOPSIS
+.Nm printenv
+.Op Ar name
+.Nm env
+.Op Fl
+.Op Ar name=value ...
+.Op Ar command
+.Sh DESCRIPTION
+.Nm Printenv
+prints out the names and values of the variables in the environment,
+with one name/value pair per line.  If
+.Ar name
+is specified, only
+its value is printed.
+.Pp
+If a
+.Ar name
+is specified and it is not defined in the environment,
+.Nm printenv
+returns exit status 1, else it returns status 0.
+.Pp
+.Nm Env
+executes
+.Ar command
+after modifying the environment as
+specified on the command line.  The option
+.Ar name=value
+specifies
+an environmental variable,
+.Ar name  ,
+with a value of
+.Ar value  .
+The option
+.Sq Fl
+causes
+.Nm env
+to completely ignore the environment
+it inherits.
+.Pp
+If no command is specified,
+.Nm env
+prints out the names and values
+of the variables in the environment, with one name/value pair per line.
+.Sh SEE ALSO
+.Xr csh 1 ,
+.Xr sh 1 ,
+.Xr execvp 3 ,
+.Xr environ 7
+.Sh HISTORY
+The
+.Nm printenv
+command appeared in
+.Bx 3.0 .
+.Sh BUGS
+.Nm Env
+doesn't handle commands with equal (``='') signs in their
+names, for obvious reasons.
diff --git a/usr.bin/printenv/printenv.c b/usr.bin/printenv/printenv.c
new file mode 100644
index 0000000..121cd2f
--- /dev/null
+++ b/usr.bin/printenv/printenv.c
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 1987, 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) 1987, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)printenv.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include <sys/types.h>
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+void	usage __P((void));
+
+/*
+ * printenv
+ *
+ * Bill Joy, UCB
+ * February, 1979
+ */
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	extern char **environ;
+	register char *cp, **ep;
+	register size_t len;
+	int ch;
+
+	while ((ch = getopt(argc, argv, "")) != EOF)
+		switch(ch) {
+		case '?':
+		default:
+			usage();
+		}
+	argc -= optind;
+	argv += optind;
+
+	if (argc == 0) {
+		for (ep = environ; *ep; ep++)
+			(void)printf("%s\n", *ep);
+		exit(0);
+	}
+	len = strlen(*argv);
+	for (ep = environ; *ep; ep++)
+		if (!memcmp(*ep, *argv, len)) {
+			cp = *ep + len;
+			if (!*cp || *cp == '=') {
+				(void)printf("%s\n", *cp ? cp + 1 : cp);
+				exit(0);
+			}
+		}
+	exit(1);
+}
+
+void
+usage()
+{
+	(void)fprintf(stderr, "usage: printenv [name]\n");
+	exit(1);
+}