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

2 files changed, 255 insertions, 0 deletions

diff --git a/shell_cmds/sleep/sleep.1 b/shell_cmds/sleep/sleep.1
new file mode 100644
index 0000000..f5215be
--- /dev/null
+++ b/shell_cmds/sleep/sleep.1
@@ -0,0 +1,124 @@
+.\"-
+.\" Copyright (c) 1990, 1993, 1994
+.\"	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.
+.\" 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.
+.\"
+.\"	@(#)sleep.1	8.3 (Berkeley) 4/18/94
+.\" $FreeBSD: src/bin/sleep/sleep.1,v 1.22 2005/01/16 16:41:59 ru Exp $
+.\"
+.Dd April 18, 1994
+.Dt SLEEP 1
+.Os
+.Sh NAME
+.Nm sleep
+.Nd suspend execution for an interval of time
+.Sh SYNOPSIS
+.Nm
+.Ar seconds
+.Sh DESCRIPTION
+The
+.Nm
+command
+suspends execution for a minimum of
+.Ar seconds .
+.Pp
+If the
+.Nm
+command receives a signal, it takes the standard action.
+.Sh IMPLEMENTATION NOTES
+The
+.Dv SIGALRM
+signal is not handled specially by this implementation.
+.Pp
+The
+.Nm
+command will accept and honor a non-integer number of specified seconds
+(with a
+.Ql .\&
+character as a decimal point).
+.Bf Sy
+This is a non-portable extension, and its use will nearly guarantee that
+a shell script will not execute properly on another system.
+.Ef
+.Sh EXIT STATUS
+.Ex -std
+.Sh EXAMPLES
+To schedule the execution of a command for
+.Va x
+number seconds later (with
+.Xr csh 1 ) :
+.Pp
+.Dl (sleep 1800; sh command_file >& errors)&
+.Pp
+This incantation would wait a half hour before
+running the script command_file.
+(See the
+.Xr at 1
+utility.)
+.Pp
+To reiteratively run a command (with the
+.Xr csh 1 ) :
+.Pp
+.Bd -literal -offset indent -compact
+while (1)
+	if (! -r zzz.rawdata) then
+		sleep 300
+	else
+		foreach i (`ls *.rawdata`)
+			sleep 70
+			awk -f collapse_data $i >> results
+		end
+		break
+	endif
+end
+.Ed
+.Pp
+The scenario for a script such as this might be: a program currently
+running is taking longer than expected to process a series of
+files, and it would be nice to have
+another program start processing the files created by the first
+program as soon as it is finished (when zzz.rawdata is created).
+The script checks every five minutes for the file zzz.rawdata,
+when the file is found, then another portion processing
+is done courteously by sleeping for 70 seconds in between each
+awk job.
+.Sh SEE ALSO
+.Xr nanosleep 2 ,
+.Xr sleep 3
+.Sh STANDARDS
+The
+.Nm
+command is expected to be
+.St -p1003.2
+compatible.
+.Sh HISTORY
+A
+.Nm
+command appeared in
+.At v4 .
diff --git a/shell_cmds/sleep/sleep.c b/shell_cmds/sleep/sleep.c
new file mode 100644
index 0000000..d41556c
--- /dev/null
+++ b/shell_cmds/sleep/sleep.c
@@ -0,0 +1,131 @@
+/*-
+ * Copyright (c) 1988, 1993, 1994
+ *	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.
+ * 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.
+ */
+
+#if 0
+#ifndef lint
+static char const copyright[] =
+"@(#) Copyright (c) 1988, 1993, 1994\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)sleep.c	8.3 (Berkeley) 4/2/94";
+#endif /* not lint */
+#endif
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/bin/sleep/sleep.c,v 1.20 2005/08/07 09:11:38 stefanf Exp $");
+
+#include <ctype.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+#include <string.h>
+
+void usage(void);
+
+int
+main(int argc, char *argv[])
+{
+	struct timespec time_to_sleep;
+	long l;
+	int neg;
+	char *p;
+
+	if (argc == 2) {
+	    p = argv[1];
+	} else if (argc == 3 && !strcmp("--", argv[1])) {
+	    // POSIX issue:   "sleep -- 3" should be the same as "sleep 3",
+	    // normally getopt makes this kind of thing work, but sleep has
+	    // no options, so we do it "the easy way"
+	    p = argv[2];
+	} else {
+		usage();
+		return(1);
+	}
+
+	/* Skip over leading whitespaces. */
+	while (isspace((unsigned char)*p))
+		++p;
+
+	/* Check for optional `+' or `-' sign. */
+	neg = 0;
+	if (*p == '-') {
+		neg = 1;
+		++p;
+		if (!isdigit((unsigned char)*p) && *p != '.') {
+			usage();
+			return(1);
+		}
+	}
+	else if (*p == '+')
+		++p;
+
+	/* Calculate seconds. */
+	if (isdigit((unsigned char)*p)) {
+		l = strtol(p, &p, 10);
+		if (l > INT_MAX) {
+			/*
+			 * Avoid overflow when `seconds' is huge.  This assumes
+			 * that the maximum value for a time_t is <= INT_MAX.
+			 */
+			l = INT_MAX;
+		}
+	} else
+		l = 0;
+	time_to_sleep.tv_sec = (time_t)l;
+
+	/* Calculate nanoseconds. */
+	time_to_sleep.tv_nsec = 0;
+
+	if (*p == '.') {		/* Decimal point. */
+		l = 100000000L;
+		do {
+			if (isdigit((unsigned char)*++p))
+				time_to_sleep.tv_nsec += (*p - '0') * l;
+			else
+				break;
+			l /= 10;
+		} while (l);
+	}
+
+	if (!neg && (time_to_sleep.tv_sec > 0 || time_to_sleep.tv_nsec > 0))
+		(void)nanosleep(&time_to_sleep, (struct timespec *)NULL);
+
+	return(0);
+}
+
+void
+usage(void)
+{
+	const char msg[] = "usage: sleep seconds\n";
+
+	write(STDERR_FILENO, msg, sizeof(msg) - 1);
+}