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121 lines
3.3 KiB
C
121 lines
3.3 KiB
C
/*
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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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#ifndef lint
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static char copyright[] =
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"@(#) Copyright (c) 1980, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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static char sccsid[] = "@(#)swapon.c 8.1 (Berkeley) 6/5/93";
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#endif /* not lint */
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#include <fstab.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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void usage __P((void));
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int add __P((char *name, int ignoreebusy));
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int
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main(int argc, char **argv)
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{
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extern char *optarg;
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extern int optind;
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register struct fstab *fsp;
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register int stat;
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int ch, doall;
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doall = 0;
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while ((ch = getopt(argc, argv, "a")) != EOF)
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switch((char)ch) {
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case 'a':
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doall = 1;
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break;
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case '?':
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default:
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usage();
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}
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argv += optind;
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stat = 0;
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if (doall)
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while ((fsp = getfsent()) != NULL) {
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if (strcmp(fsp->fs_type, FSTAB_SW))
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continue;
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if (add(fsp->fs_spec, 1))
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stat = 1;
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else
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printf("swapon: adding %s as swap device\n",
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fsp->fs_spec);
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}
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else if (!*argv)
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usage();
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for (; *argv; ++argv)
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stat |= add(*argv, 0);
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exit(stat);
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}
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int
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add(char *name, int ignoreebusy)
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{
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extern int errno;
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if (swapon(name) == -1) {
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switch (errno) {
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case EBUSY:
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if (!ignoreebusy)
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fprintf(stderr,
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"swapon: %s: device already in use\n",
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name);
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break;
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default:
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fprintf(stderr, "swapon: %s: ", name);
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perror((char *)NULL);
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break;
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}
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return(1);
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}
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return(0);
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}
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void
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usage()
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{
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fprintf(stderr, "usage: swapon [-a] [special_file ...]\n");
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exit(1);
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}
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