diff options
author | rgrimes <rgrimes@FreeBSD.org> | 1994-05-26 06:35:07 +0000 |
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committer | rgrimes <rgrimes@FreeBSD.org> | 1994-05-26 06:35:07 +0000 |
commit | d038e02fd667ab6c02875840105798aaa7029504 (patch) | |
tree | b555a2b228429d62f4946ae1a7e68c33012e1b03 /sbin/swapon | |
parent | e3cfc8ce61f788739c66445d903f8beacb40c93d (diff) | |
download | FreeBSD-src-d038e02fd667ab6c02875840105798aaa7029504.zip FreeBSD-src-d038e02fd667ab6c02875840105798aaa7029504.tar.gz |
BSD 4.4 Lite sbin Sources
Note: XNSrouted and routed NOT imported here, they shall be imported with
usr.sbin.
Diffstat (limited to 'sbin/swapon')
-rw-r--r-- | sbin/swapon/Makefile | 6 | ||||
-rw-r--r-- | sbin/swapon/swapon.8 | 90 | ||||
-rw-r--r-- | sbin/swapon/swapon.c | 120 |
3 files changed, 216 insertions, 0 deletions
diff --git a/sbin/swapon/Makefile b/sbin/swapon/Makefile new file mode 100644 index 0000000..23836a1 --- /dev/null +++ b/sbin/swapon/Makefile @@ -0,0 +1,6 @@ +# @(#)Makefile 8.1 (Berkeley) 6/5/93 + +PROG= swapon +MAN8= swapon.0 + +.include <bsd.prog.mk> diff --git a/sbin/swapon/swapon.8 b/sbin/swapon/swapon.8 new file mode 100644 index 0000000..973ebc2 --- /dev/null +++ b/sbin/swapon/swapon.8 @@ -0,0 +1,90 @@ +.\" Copyright (c) 1980, 1991, 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. +.\" +.\" @(#)swapon.8 8.1 (Berkeley) 6/5/93 +.\" +.Dd June 5, 1993 +.Dt SWAPON 8 +.Os BSD 4 +.Sh NAME +.Nm swapon +.Nd "specify additional device for paging and swapping" +.Sh SYNOPSIS +.Nm swapon +.Fl a +.Nm swapon +.Ar special_file ... +.Sh DESCRIPTION +.Nm Swapon +is used to specify additional devices on which paging and swapping +are to take place. +The system begins by swapping and paging on only a single device +so that only one disk is required at bootstrap time. +Calls to +.Nm swapon +normally occur in the system multi-user initialization file +.Pa /etc/rc +making all swap devices available, so that the paging and swapping +activity is interleaved across several devices. +.Pp +Normally, the first form is used: +.Bl -tag -width Ds +.It Fl a +All devices marked as ``sw'' +swap devices in +.Pa /etc/fstab +are made available. +.El +.Pp +The second form gives individual block devices as given +in the system swap configuration table. The call makes only this space +available to the system for swap allocation. +.Sh SEE ALSO +.Xr swapon 2 , +.Xr fstab 8 +.Xr init 8 +.Xr rc 8 +.Sh FILES +.Bl -tag -width /dev/[ru][pk]?b -compact +.It Pa /dev/[ru][pk]?b +standard paging devices +.It Pa /etc/fstab +ascii filesystem description table +.El +.Sh BUGS +There is no way to stop paging and swapping on a device. +It is therefore not possible to make use of devices which may be +dismounted during system operation. +.Sh HISTORY +The +.Nm +command appeared in +.Bx 4.0 . diff --git a/sbin/swapon/swapon.c b/sbin/swapon/swapon.c new file mode 100644 index 0000000..577219d --- /dev/null +++ b/sbin/swapon/swapon.c @@ -0,0 +1,120 @@ +/* + * 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> + +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); +} |