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File: [local] / src / usr.bin / nice / nice.c (download)
Revision 1.17, Fri Oct 28 07:22:59 2016 UTC (7 years, 7 months ago) by schwarze
Delete some useless setlocale(3) calls in /usr/bin, no functional change. Patches from Jan Stary <hans at stare dot cz>, tweaked by me and tb@. While here, apply some simple style improvements: Sort headers, static void __dead usage(), return from main(), zap case '?', drop /* NOTREACHED */, drop break after usage(), ... OK tb@ millert@ |
/* $OpenBSD: nice.c,v 1.17 2016/10/28 07:22:59 schwarze Exp $ */ /* $NetBSD: nice.c,v 1.9 1995/08/31 23:30:58 jtc 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. 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/resource.h> #include <ctype.h> #include <err.h> #include <errno.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #define DEFNICE 10 static void __dead usage(void); int main(int argc, char *argv[]) { const char *errstr; int prio = DEFNICE; int c; if (pledge("stdio exec proc", NULL) == -1) err(1, "pledge"); /* handle obsolete -number syntax */ if (argc > 1 && argv[1][0] == '-' && isdigit((unsigned char)argv[1][1])) { prio = strtonum(argv[1] + 1, PRIO_MIN, PRIO_MAX, &errstr); if (errstr) errx(1, "increment is %s", errstr); argc--; argv++; } while ((c = getopt (argc, argv, "n:")) != -1) { switch (c) { case 'n': prio = strtonum(optarg, PRIO_MIN, PRIO_MAX, &errstr); if (errstr) errx(1, "increment is %s", errstr); break; default: usage(); } } argc -= optind; argv += optind; if (argc == 0) usage(); errno = 0; prio += getpriority(PRIO_PROCESS, 0); if (errno) err(1, "getpriority"); if (setpriority(PRIO_PROCESS, 0, prio)) warn("setpriority"); if (pledge("stdio exec", NULL) == -1) err(1, "pledge"); execvp(argv[0], &argv[0]); err((errno == ENOENT) ? 127 : 126, "%s", argv[0]); } static void __dead usage(void) { extern char *__progname; fprintf(stderr, "usage: %s [-n increment] utility [argument ...]\n", __progname); exit(1); }