GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/nice/nice.c Lines: 0 33 0.0 %
Date: 2017-11-13 Branches: 0 24 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: nice.c,v 1.17 2016/10/28 07:22:59 schwarze Exp $	*/
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/*	$NetBSD: nice.c,v 1.9 1995/08/31 23:30:58 jtc Exp $	*/
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/*
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 * Copyright (c) 1989 The Regents of the University of California.
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. Neither the name of the University nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 */
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#include <sys/resource.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#define	DEFNICE	10
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static void __dead usage(void);
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int
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main(int argc, char *argv[])
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{
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	const char *errstr;
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	int prio = DEFNICE;
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	int c;
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	if (pledge("stdio exec proc flock rpath cpath wpath", NULL) == -1)
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		err(1, "pledge");
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	/* handle obsolete -number syntax */
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	if (argc > 1 && argv[1][0] == '-' &&
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	    isdigit((unsigned char)argv[1][1])) {
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		prio = strtonum(argv[1] + 1, PRIO_MIN, PRIO_MAX, &errstr);
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		if (errstr)
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			errx(1, "increment is %s", errstr);
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		argc--;
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		argv++;
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	}
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	while ((c = getopt (argc, argv, "n:")) != -1) {
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		switch (c) {
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		case 'n':
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			prio = strtonum(optarg, PRIO_MIN, PRIO_MAX, &errstr);
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			if (errstr)
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				errx(1, "increment is %s", errstr);
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			break;
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		default:
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			usage();
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		}
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	}
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	argc -= optind;
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	argv += optind;
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	if (argc == 0)
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		usage();
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	errno = 0;
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	prio += getpriority(PRIO_PROCESS, 0);
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	if (errno)
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		err(1, "getpriority");
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	if (setpriority(PRIO_PROCESS, 0, prio))
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		warn("setpriority");
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	if (pledge("stdio exec flock rpath cpath wpath", NULL) == -1)
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		err(1, "pledge");
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	execvp(argv[0], &argv[0]);
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	err((errno == ENOENT) ? 127 : 126, "%s", argv[0]);
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}
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static void __dead
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usage(void)
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{
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	extern char *__progname;
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	fprintf(stderr, "usage: %s [-n increment] utility [argument ...]\n",
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	    __progname);
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	exit(1);
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}