[unix-history] / sbin / swapon / swapon.c

/*
 * Copyright (c) 1980 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
char copyright[] =
"@(#) Copyright (c) 1980 Regents of the University of California.\n\
 All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)swapon.c	5.5 (Berkeley) 2/27/91";
#endif /* not lint */

#include <fstab.h>
#include <errno.h>
#include <stdio.h>

main(argc, argv)
	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()) {
			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);
}

add(name, ignoreebusy)
	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);
}

usage()
{
	fprintf(stderr, "usage: swapon [-a] [special_file ...]\n");
	exit(1);
}
Commit	Line	Data
15637ed4 RG	1	/*
	2	* Copyright (c) 1980 Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. All advertising materials mentioning features or use of this software
	14	* must display the following acknowledgement:
	15	* This product includes software developed by the University of
	16	* California, Berkeley and its contributors.
	17	* 4. Neither the name of the University nor the names of its contributors
	18	* may be used to endorse or promote products derived from this software
	19	* without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	31	* SUCH DAMAGE.
	32	*/
	33
	34	#ifndef lint
	35	char copyright[] =
	36	"@(#) Copyright (c) 1980 Regents of the University of California.\n\
	37	All rights reserved.\n";
	38	#endif /* not lint */
	39
	40	#ifndef lint
	41	static char sccsid[] = "@(#)swapon.c 5.5 (Berkeley) 2/27/91";
	42	#endif /* not lint */
	43
	44	#include <fstab.h>
	45	#include <errno.h>
	46	#include <stdio.h>
	47
	48	main(argc, argv)
	49	int argc;
	50	char **argv;
	51	{
	52	extern char *optarg;
	53	extern int optind;
	54	register struct fstab *fsp;
	55	register int stat;
	56	int ch, doall;
	57
	58	doall = 0;
	59	while ((ch = getopt(argc, argv, "a")) != EOF)
	60	switch((char)ch) {
	61	case 'a':
	62	doall = 1;
	63	break;
	64	case '?':
65	default:
66	usage();
67	}
68	argv += optind;
69
70	stat = 0;
71	if (doall)
72	while (fsp = getfsent()) {
73	if (strcmp(fsp->fs_type, FSTAB_SW))
74	continue;
75	if (add(fsp->fs_spec, 1))
76	stat = 1;
77	else
78	printf("swapon: adding %s as swap device\n",
79	fsp->fs_spec);
80	}
81	else if (!*argv)
82	usage();
83	for (; *argv; ++argv)
84	stat \|= add(*argv, 0);
85	exit(stat);
86	}
87
88	add(name, ignoreebusy)
89	char *name;
90	int ignoreebusy;
91	{
92	extern int errno;
93
94	if (swapon(name) == -1) {
95	switch (errno) {
96	case EINVAL:
97	fprintf(stderr, "swapon: %s: device not configured\n",
98	name);
99	break;
100	case EBUSY:
101	if (!ignoreebusy)
102	fprintf(stderr,
103	"swapon: %s: device already in use\n",
104	name);
105	break;
106	default:
107	fprintf(stderr, "swapon: %s: ", name);
108	perror((char *)NULL);
109	break;
110	}
111	return(1);
112	}
113	return(0);
114	}
115
116	usage()
117	{
118	fprintf(stderr, "usage: swapon [-a] [special_file ...]\n");
119	exit(1);
120	}