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/*
* Copyright (c) 1980, 1993
* 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.
*/
#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1980, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
static char sccsid[] = "@(#)swapon.c 8.1 (Berkeley) 6/5/93";
#endif /* not lint */
#include <fstab.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
void usage __P((void));
int add __P((char *name, int ignoreebusy));
int
main(int argc, char **argv)
{
extern char *optarg;
extern int optind;
register struct fstab *fsp;
register int stat;
int ch, doall;
doall = 0;
while ((ch = getopt(argc, argv, "a")) != EOF)
switch((char)ch) {
case 'a':
doall = 1;
break;
case '?':
default:
usage();
}
argv += optind;
stat = 0;
if (doall)
while ((fsp = getfsent()) != NULL) {
if (strcmp(fsp->fs_type, FSTAB_SW))
continue;
if (add(fsp->fs_spec, 1))
stat = 1;
else
printf("swapon: adding %s as swap device\n",
fsp->fs_spec);
}
else if (!*argv)
usage();
for (; *argv; ++argv)
stat |= add(*argv, 0);
exit(stat);
}
int
add(char *name, int ignoreebusy)
{
extern int errno;
if (swapon(name) == -1) {
switch (errno) {
case EINVAL:
fprintf(stderr, "swapon: %s: device not configured\n",
name);
break;
case EBUSY:
if (!ignoreebusy)
fprintf(stderr,
"swapon: %s: device already in use\n",
name);
break;
default:
fprintf(stderr, "swapon: %s: ", name);
perror((char *)NULL);
break;
}
return(1);
}
return(0);
}
void
usage()
{
fprintf(stderr, "usage: swapon [-a] [special_file ...]\n");
exit(1);
}
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