BSD 4.4 Lite Usr.bin Sources

3 files changed, 224 insertions, 0 deletions

diff --git a/usr.bin/from/Makefile b/usr.bin/from/Makefile
new file mode 100644
index 0000000..a802dc6
--- /dev/null
+++ b/usr.bin/from/Makefile
@@ -0,0 +1,5 @@
+#	@(#)Makefile	8.1 (Berkeley) 6/6/93
+
+PROG=	from
+
+.include <bsd.prog.mk>
diff --git a/usr.bin/from/from.1 b/usr.bin/from/from.1
new file mode 100644
index 0000000..f935b89
--- /dev/null
+++ b/usr.bin/from/from.1
@@ -0,0 +1,83 @@
+.\" Copyright (c) 1980, 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.
+.\"
+.\"	@(#)from.1	8.2 (Berkeley) 12/30/93
+.\"
+.Dd December 30, 1993
+.Dt FROM 1
+.Os BSD 4
+.Sh NAME
+.Nm from
+.Nd print names of those who have sent mail
+.Sh SYNOPSIS
+.Nm from
+.Op Fl s Ar sender
+.Op Fl f Ar file
+.Op Ar user
+.Sh DESCRIPTION
+.Nm From
+prints
+out the mail header lines from the invoker's mailbox.
+.Pp
+Options:
+.Bl -tag -width Fl
+.It Fl f Ar file 
+The supplied file
+is examined instead of the invoker's mailbox.
+If the
+.Fl f
+option is used, the
+.Ar user
+argument should not be used.
+.It Fl s Ar sender 
+Only mail from addresses containing
+the
+supplied string are printed.
+.El
+.Pp
+If
+.Ar user
+is given, the
+.Ar user Ns 's
+mailbox, is examined instead of the invoker's own mailbox.
+(Privileges are required.)
+.Sh FILES
+.Bl -tag -width /var/mail/* -compact
+.It Pa /var/mail/*
+.El
+.Sh SEE ALSO
+.Xr biff 1 ,
+.Xr mail 1
+.Sh HISTORY
+The
+.Nm from
+command appeared in
+.Bx 3.0 .
diff --git a/usr.bin/from/from.c b/usr.bin/from/from.c
new file mode 100644
index 0000000..324bceb
--- /dev/null
+++ b/usr.bin/from/from.c
@@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 1980, 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) 1980, 1988, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)from.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <ctype.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <paths.h>
+
+main(argc, argv)
+	int argc;
+	char **argv;
+{
+	extern char *optarg;
+	extern int optind;
+	struct passwd *pwd;
+	int ch, newline;
+	char *file, *sender, *p;
+#if MAXPATHLEN > BUFSIZ
+	char buf[MAXPATHLEN];
+#else
+	char buf[BUFSIZ];
+#endif
+
+	file = sender = NULL;
+	while ((ch = getopt(argc, argv, "f:s:")) != EOF)
+		switch((char)ch) {
+		case 'f':
+			file = optarg;
+			break;
+		case 's':
+			sender = optarg;
+			for (p = sender; *p; ++p)
+				if (isupper(*p))
+					*p = tolower(*p);
+			break;
+		case '?':
+		default:
+			fprintf(stderr, "usage: from [-f file] [-s sender] [user]\n");
+			exit(1);
+		}
+	argv += optind;
+
+	if (!file) {
+		if (!(file = *argv)) {
+			if (!(pwd = getpwuid(getuid()))) {
+				fprintf(stderr,
+				    "from: no password file entry for you.\n");
+				exit(1);
+			}
+			file = pwd->pw_name;
+		}
+		(void)sprintf(buf, "%s/%s", _PATH_MAILDIR, file);
+		file = buf;
+	}
+	if (!freopen(file, "r", stdin)) {
+		fprintf(stderr, "from: can't read %s.\n", file);
+		exit(1);
+	}
+	for (newline = 1; fgets(buf, sizeof(buf), stdin);) {
+		if (*buf == '\n') {
+			newline = 1;
+			continue;
+		}
+		if (newline && !strncmp(buf, "From ", 5) &&
+		    (!sender || match(buf + 5, sender)))
+			printf("%s", buf);
+		newline = 0;
+	}
+	exit(0);
+}
+
+match(line, sender)
+	register char *line, *sender;
+{
+	register char ch, pch, first, *p, *t;
+
+	for (first = *sender++;;) {
+		if (isspace(ch = *line))
+			return(0);
+		++line;
+		if (isupper(ch))
+			ch = tolower(ch);
+		if (ch != first)
+			continue;
+		for (p = sender, t = line;;) {
+			if (!(pch = *p++))
+				return(1);
+			if (isupper(ch = *t++))
+				ch = tolower(ch);
+			if (ch != pch)
+				break;
+		}
+	}
+	/* NOTREACHED */
+}