Import macOS userland

adv_cmds-176
basic_cmds-55
bootstrap_cmds-116.100.1
developer_cmds-66
diskdev_cmds-667.40.1
doc_cmds-53.60.1
file_cmds-321.40.3
mail_cmds-35
misc_cmds-34
network_cmds-606.40.1
patch_cmds-17
remote_cmds-63
shell_cmds-216.60.1
system_cmds-880.60.2
text_cmds-106

3 files changed, 282 insertions, 0 deletions

diff --git a/mail_cmds/from/Makefile b/mail_cmds/from/Makefile
new file mode 100644
index 0000000..b0c5bd7
--- /dev/null
+++ b/mail_cmds/from/Makefile
@@ -0,0 +1,10 @@
+Project = from
+Install_Dir = /usr/bin
+
+CFILES = from.c
+MANPAGES = from.1
+
+Extra_CC_Flags = -Wall -Werror -mdynamic-no-pic
+Extra_LD_Flags = -dead_strip
+
+include $(MAKEFILEPATH)/CoreOS/ReleaseControl/BSDCommon.make
diff --git a/mail_cmds/from/from.1 b/mail_cmds/from/from.1
new file mode 100644
index 0000000..af26bfd
--- /dev/null
+++ b/mail_cmds/from/from.1
@@ -0,0 +1,99 @@
+.\" 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
+.\" $FreeBSD: src/usr.bin/from/from.1,v 1.14 2002/07/15 06:15:38 keramida Exp $
+.\"
+.Dd December 30, 1993
+.Dt FROM 1
+.Os
+.Sh NAME
+.Nm from
+.Nd print names of those who have sent mail
+.Sh SYNOPSIS
+.Nm
+.Op Fl c
+.Op Fl s Ar sender
+.Op Fl f Ar file
+.Op Ar user
+.Sh DESCRIPTION
+The
+.Nm
+utility prints
+out the mail header lines from the invoker's mailbox.
+.Pp
+The following options are available:
+.Bl -tag -width indent
+.It Fl c
+Just print a count of messages and exit.
+.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.
+Read from standard input if file name
+.Ar -
+is given.
+.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 ENVIRONMENT
+.Bl -tag -width Fl
+.It Ev MAIL
+If set, the location of the invoker's mailbox.
+Otherwise, the default in
+.Pa /var/mail
+is used.
+.El
+.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
+command appeared in
+.Bx 3.0 .
diff --git a/mail_cmds/from/from.c b/mail_cmds/from/from.c
new file mode 100644
index 0000000..ac85c54
--- /dev/null
+++ b/mail_cmds/from/from.c
@@ -0,0 +1,173 @@
+/*
+ * 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 const char copyright[] =
+"@(#) Copyright (c) 1980, 1988, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)from.c	8.1 (Berkeley) 6/6/93";
+#endif
+#endif /* not lint */
+#include <sys/cdefs.h>
+__RCSID("$FreeBSD: src/usr.bin/from/from.c,v 1.14 2002/09/04 23:29:00 dwmalone Exp $");
+
+#include <sys/types.h>
+#include <ctype.h>
+#include <err.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <paths.h>
+#include <string.h>
+#include <unistd.h>
+
+int match(const char *, const char *);
+static void usage(void);
+
+int
+main(int argc, char **argv)
+{
+	FILE *mbox;
+	struct passwd *pwd;
+	int ch, count, newline;
+	const char *file;
+	char *sender, *p;
+#if MAXPATHLEN > BUFSIZ
+	char buf[MAXPATHLEN];
+#else
+	char buf[BUFSIZ];
+#endif
+
+	file = sender = NULL;
+	count = -1;
+	while ((ch = getopt(argc, argv, "cf:s:")) != -1)
+		switch (ch) {
+		case 'c':
+			count = 0;
+			break;
+		case 'f':
+			file = optarg;
+			break;
+		case 's':
+			sender = optarg;
+			for (p = sender; *p; ++p)
+				if (isupper(*p))
+					*p = tolower(*p);
+			break;
+		case '?':
+		default:
+			usage();
+		}
+	argc -= optind;
+	argv += optind;
+
+	if (file == NULL) {
+		if (argc) {
+			(void)snprintf(buf, sizeof(buf), "%s/%s", _PATH_MAILDIR, *argv);
+			file  = buf;
+		} else {
+			if (!(file = getenv("MAIL"))) {
+				if (!(pwd = getpwuid(getuid())))
+					errx(1, "no password file entry for you");
+				file = pwd->pw_name;
+				(void)snprintf(buf, sizeof(buf),
+				    "%s/%s", _PATH_MAILDIR, file);
+				file = buf;
+			}
+		}
+	}
+
+	/* read from stdin */
+	if (strcmp(file, "-") == 0) {
+		mbox = stdin;
+	} 
+	else if ((mbox = fopen(file, "r")) == NULL) {
+		errx(1, "can't read %s", file);
+	}
+	for (newline = 1; fgets(buf, sizeof(buf), mbox);) {
+		if (*buf == '\n') {
+			newline = 1;
+			continue;
+		}
+		if (newline && !strncmp(buf, "From ", 5) &&
+		    (!sender || match(buf + 5, sender))) {
+			if (count != -1)
+				count++;
+			else
+				printf("%s", buf);
+		}
+		newline = 0;
+	}
+	if (count != -1)
+		printf("There %s %d message%s in your incoming mailbox.\n",
+		    count == 1 ? "is" : "are", count, count == 1 ? "" : "s"); 
+	fclose(mbox);
+	exit(0);
+}
+
+static void
+usage(void)
+{
+	fprintf(stderr, "usage: from [-c] [-f file] [-s sender] [user]\n");
+	exit(1);
+}
+
+int
+match(const char *line, const char *sender)
+{
+	char ch, pch, first;
+	const char *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 */
+}