swapon.c revision 38039
11558Srgrimes/* 21558Srgrimes * Copyright (c) 1980, 1993 31558Srgrimes * The Regents of the University of California. All rights reserved. 41558Srgrimes * 51558Srgrimes * Redistribution and use in source and binary forms, with or without 61558Srgrimes * modification, are permitted provided that the following conditions 71558Srgrimes * are met: 81558Srgrimes * 1. Redistributions of source code must retain the above copyright 91558Srgrimes * notice, this list of conditions and the following disclaimer. 101558Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111558Srgrimes * notice, this list of conditions and the following disclaimer in the 121558Srgrimes * documentation and/or other materials provided with the distribution. 131558Srgrimes * 3. All advertising materials mentioning features or use of this software 141558Srgrimes * must display the following acknowledgement: 151558Srgrimes * This product includes software developed by the University of 161558Srgrimes * California, Berkeley and its contributors. 171558Srgrimes * 4. Neither the name of the University nor the names of its contributors 181558Srgrimes * may be used to endorse or promote products derived from this software 191558Srgrimes * without specific prior written permission. 201558Srgrimes * 211558Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221558Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231558Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241558Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251558Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261558Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271558Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281558Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291558Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301558Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311558Srgrimes * SUCH DAMAGE. 321558Srgrimes */ 331558Srgrimes 341558Srgrimes#ifndef lint 3538039Scharnierstatic const char copyright[] = 361558Srgrimes"@(#) Copyright (c) 1980, 1993\n\ 371558Srgrimes The Regents of the University of California. All rights reserved.\n"; 381558Srgrimes#endif /* not lint */ 391558Srgrimes 401558Srgrimes#ifndef lint 4138039Scharnier#if 0 421558Srgrimesstatic char sccsid[] = "@(#)swapon.c 8.1 (Berkeley) 6/5/93"; 4338039Scharnier#endif 4438039Scharnierstatic const char rcsid[] = 4538039Scharnier "$Id$"; 461558Srgrimes#endif /* not lint */ 471558Srgrimes 4838039Scharnier#include <err.h> 4938039Scharnier#include <errno.h> 501558Srgrimes#include <fstab.h> 511558Srgrimes#include <stdio.h> 5238039Scharnier#include <string.h> 536661Sphk#include <unistd.h> 541558Srgrimes 5526740Scharnierstatic void usage __P((void)); 566661Sphkint add __P((char *name, int ignoreebusy)); 576661Sphk 586661Sphkint 596661Sphkmain(int argc, char **argv) 601558Srgrimes{ 611558Srgrimes register struct fstab *fsp; 621558Srgrimes register int stat; 631558Srgrimes int ch, doall; 641558Srgrimes 651558Srgrimes doall = 0; 6624359Simp while ((ch = getopt(argc, argv, "a")) != -1) 671558Srgrimes switch((char)ch) { 681558Srgrimes case 'a': 691558Srgrimes doall = 1; 701558Srgrimes break; 711558Srgrimes case '?': 721558Srgrimes default: 731558Srgrimes usage(); 741558Srgrimes } 751558Srgrimes argv += optind; 761558Srgrimes 771558Srgrimes stat = 0; 781558Srgrimes if (doall) 796661Sphk while ((fsp = getfsent()) != NULL) { 801558Srgrimes if (strcmp(fsp->fs_type, FSTAB_SW)) 811558Srgrimes continue; 8218073Sjkh if (strstr(fsp->fs_mntops, "noauto")) 8318073Sjkh continue; 841558Srgrimes if (add(fsp->fs_spec, 1)) 851558Srgrimes stat = 1; 861558Srgrimes else 871558Srgrimes printf("swapon: adding %s as swap device\n", 881558Srgrimes fsp->fs_spec); 891558Srgrimes } 901558Srgrimes else if (!*argv) 911558Srgrimes usage(); 921558Srgrimes for (; *argv; ++argv) 931558Srgrimes stat |= add(*argv, 0); 941558Srgrimes exit(stat); 951558Srgrimes} 961558Srgrimes 976661Sphkint 986661Sphkadd(char *name, int ignoreebusy) 991558Srgrimes{ 1001558Srgrimes extern int errno; 1011558Srgrimes 1021558Srgrimes if (swapon(name) == -1) { 1031558Srgrimes switch (errno) { 1041558Srgrimes case EBUSY: 1051558Srgrimes if (!ignoreebusy) 10626740Scharnier warnx("%s: device already in use", name); 1071558Srgrimes break; 1081558Srgrimes default: 10926740Scharnier warn("%s", name); 1101558Srgrimes break; 1111558Srgrimes } 1121558Srgrimes return(1); 1131558Srgrimes } 1141558Srgrimes return(0); 1151558Srgrimes} 1161558Srgrimes 11726740Scharnierstatic void 1181558Srgrimesusage() 1191558Srgrimes{ 1201558Srgrimes fprintf(stderr, "usage: swapon [-a] [special_file ...]\n"); 1211558Srgrimes exit(1); 1221558Srgrimes} 123