9754f5b65b
attributes (recently committed). Using extattrctl, the extended attribute service may be started and stopped for specific file systems; specific attributes may be enabled or disabled, and the backing file for each attribute configured. Also, backing files may be initialized. Reviewed by: adrian, bp, freebsd-fs, the unthanked masses Obtained from: TrustedBSD
118 lines
3.2 KiB
C
118 lines
3.2 KiB
C
/*-
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* Copyright (c) 1999, 2000 Robert N. M. Watson
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* 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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* $FreeBSD$
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*/
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/*
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* TrustedBSD Project - extended attribute support for UFS-like file systems
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*/
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#include <sys/types.h>
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#include <sys/uio.h>
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#include <sys/extattr.h>
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#include <ufs/ufs/extattr.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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void
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usage(void)
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{
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fprintf(stderr,
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"usage:\n"
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" extattrctl start [path]\n"
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" extattrctl stop [path]\n"
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" extattrctl initattr [attrsize] [attrfile]\n"
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" extattrctl enable [path] [attrname] [attrfile]\n"
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" extattrctl disable [path] [attrname]\n");
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}
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int
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main(int argc, char *argv[])
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{
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struct ufs_extattr_fileheader uef;
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int error = 0, i;
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if (argc < 2) {
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usage();
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return(-1);
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}
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if (!strcmp(argv[1], "start")) {
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if (argc != 3) {
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usage();
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return(-1);
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}
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error = extattrctl(argv[2], UFS_EXTATTR_CMD_START, 0, 0);
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} else if (!strcmp(argv[1], "stop")) {
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if (argc != 3) {
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usage();
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return(-1);
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}
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error = extattrctl(argv[2], UFS_EXTATTR_CMD_STOP, 0, 0);
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} else if (!strcmp(argv[1], "enable")) {
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if (argc != 5) {
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usage();
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return(-1);
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}
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error = extattrctl(argv[2], UFS_EXTATTR_CMD_ENABLE, argv[3],
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argv[4]);
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} else if (!strcmp(argv[1], "disable")) {
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if (argc != 4) {
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usage();
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return(-1);
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}
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error = extattrctl(argv[2], UFS_EXTATTR_CMD_DISABLE, argv[3],
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NULL);
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} else if (!strcmp(argv[1], "initattr")) {
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if (argc != 4) {
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usage();
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return(-1);
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}
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if ((i = open(argv[3], O_CREAT | O_EXCL | O_WRONLY, 0600)) !=
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-1) {
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uef.uef_write_perm = UFS_EXTATTR_PERM_OWNER;
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uef.uef_read_perm = UFS_EXTATTR_PERM_ANYONE;
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uef.uef_size = atoi(argv[2]);
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if (write(i, &uef, sizeof(uef)) == -1) {
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error = -1;
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} else
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error = close(i);
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} else
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error = -1;
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} else {
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usage();
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return(-1);
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}
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if (error)
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perror(argv[1]);
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return(error);
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}
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