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freebsd/usr.sbin/setextattr/setextattr.c
Robert Watson 166eb62fe2 Introduce userland utilities to set and get extended attributes. These
utilities do not present the world's greatest interface, and will
undoubtably change soon.  However, they do let people experiment with
extended attributes, and provide samples of how to use the syscalls.

Obtained from:	TrustedBSD
2000-04-16 20:55:50 +00:00

65 lines
1.9 KiB
C

/*-
* Copyright (c) 1999, 2000 Robert N. M. Watson
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*/
/*
* TrustedBSD Project - extended attribute support for UFS-like file systems
*/
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/extattr.h>
#include <stdio.h>
void
usage(void)
{
fprintf(stderr, "setextattr [attrname] [filename] [attrvalue]\n");
exit(-1);
}
int
main(int argc, char *argv[])
{
struct iovec iov_buf;
int error;
if (argc != 4)
usage();
iov_buf.iov_base = argv[3];
iov_buf.iov_len = strlen(argv[3]);
error = extattr_set_file(argv[2], argv[1], &iov_buf, 1);
if (error == -1) {
perror("extattr_set_file");
return (-1);
}
return (0);
}