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

1 files changed, 122 insertions, 0 deletions

diff --git a/shell_cmds/nice/nice.c b/shell_cmds/nice/nice.c
new file mode 100644
index 0000000..62a197e
--- /dev/null
+++ b/shell_cmds/nice/nice.c
@@ -0,0 +1,122 @@
+/*	$NetBSD: nice.c,v 1.10 1997/10/19 06:28:04 lukem Exp $	*/
+
+/*
+ * Copyright (c) 1989 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.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+__COPYRIGHT(
+    "@(#) Copyright (c) 1989 The Regents of the University of California.\n\
+ All rights reserved.\n");
+#endif /* not lint */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)nice.c	5.4 (Berkeley) 6/1/90";
+#endif
+__RCSID("$NetBSD: nice.c,v 1.10 1997/10/19 06:28:04 lukem Exp $");
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <locale.h>
+#include <ctype.h>
+#include <errno.h>
+#include <err.h>
+#include <unistd.h>
+
+#define	DEFNICE	10
+
+int	main __P((int, char **));
+static void usage __P((void));
+
+int
+main(argc, argv)
+	int argc;
+	char **argv;
+{
+	int niceness = DEFNICE;
+	int c;
+
+	setlocale(LC_ALL, "");
+
+        /* handle obsolete -number syntax */
+        if (argc > 1 && argv[1][0] == '-' && isdigit(argv[1][1])) {
+		niceness = atoi (argv[1] + 1);
+                argc--; argv++;
+        }
+
+	while ((c = getopt (argc, argv, "n:")) != -1) {
+		switch (c) {
+		case 'n':
+			niceness = atoi (optarg);
+			break;
+
+		case '?':
+		default:
+			usage();
+			break;
+		}
+	}
+	argc -= optind; argv += optind;
+
+	if (argc == 0)
+		usage();
+
+	errno = 0;
+	niceness += getpriority(PRIO_PROCESS, 0);
+	if (errno) {
+		err (1, "getpriority");
+		/* NOTREACHED */
+	}
+	if (setpriority(PRIO_PROCESS, 0, niceness)) {
+		warn ("setpriority");
+	}
+
+	execvp(argv[0], &argv[0]);
+	err ((errno == ENOENT) ? 127 : 126, "%s", argv[0]);
+	/* NOTREACHED */
+}
+
+static void
+usage()
+{
+	(void)fprintf(stderr,
+	    "usage: nice [ -n increment ] utility [ argument ...]\n");
+	
+	exit(1);
+}