c885aac573
buffers before reading the memory. Arguably, the failure modes here are poor, but we can now read >2k EAs. Also, update the copyrights and licenses while I'm here.
158 lines
4.0 KiB
C
158 lines
4.0 KiB
C
/*-
|
|
* Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson
|
|
* Copyright (c) 2002 Networks Associates Technologies, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This software was developed by Robert Watson for the TrustedBSD Project.
|
|
*
|
|
* This software was developed for the FreeBSD Project in part by NAI Labs,
|
|
* the Security Research Division of Network Associates, Inc. under
|
|
* DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA
|
|
* CHATS research program.
|
|
*
|
|
*
|
|
* 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
|
|
*/
|
|
#include <sys/types.h>
|
|
#include <sys/uio.h>
|
|
#include <sys/extattr.h>
|
|
|
|
#include <libutil.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <vis.h>
|
|
|
|
#define BUFSIZE 2048
|
|
|
|
void usage(void);
|
|
|
|
void
|
|
usage(void)
|
|
{
|
|
|
|
fprintf(stderr, "getextattr [-s] [attrnamespace] [attrname] "
|
|
"[filename ...]\n");
|
|
exit(-1);
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
size_t len;
|
|
char *attrname;
|
|
char *buf, *visbuf;
|
|
int ch, error, i, arg_counter, attrnamespace;
|
|
|
|
int flag_as_string = 0;
|
|
int flag_reverse = 0;
|
|
|
|
while ((ch = getopt(argc, argv, "ls")) != -1) {
|
|
switch (ch) {
|
|
case 'l':
|
|
flag_reverse = 1;
|
|
case 's':
|
|
flag_as_string = 1;
|
|
break;
|
|
case '?':
|
|
default:
|
|
usage();
|
|
}
|
|
}
|
|
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if (argc < 3)
|
|
usage();
|
|
|
|
error = extattr_string_to_namespace(argv[0], &attrnamespace);
|
|
if (error) {
|
|
perror(argv[0]);
|
|
return (-1);
|
|
}
|
|
attrname = argv[1];
|
|
|
|
argc--;
|
|
argv++;
|
|
|
|
/*
|
|
* XXX: Note: now that EAs support querying the size, we could
|
|
* actually allocate a buffer of the right size, rather than
|
|
* truncating at BUFSIZE.
|
|
*/
|
|
for (arg_counter = 1; arg_counter < argc; arg_counter++) {
|
|
len = extattr_get_file(argv[arg_counter], attrnamespace,
|
|
attrname, NULL, 0);
|
|
if (len == -1) {
|
|
perror(argv[arg_counter]);
|
|
continue;
|
|
}
|
|
buf = (char *)malloc(len);
|
|
if (buf == NULL) {
|
|
perror("malloc");
|
|
return (-1);
|
|
}
|
|
error = extattr_get_file(argv[arg_counter], attrnamespace,
|
|
attrname, buf, BUFSIZE);
|
|
if (error == -1)
|
|
perror(argv[arg_counter]);
|
|
else {
|
|
if (flag_as_string) {
|
|
visbuf = (char *)malloc(len*4);
|
|
if (visbuf == NULL) {
|
|
perror("malloc");
|
|
return (-1);
|
|
}
|
|
strvisx(visbuf, buf, error, VIS_SAFE
|
|
| VIS_WHITE);
|
|
if (flag_reverse) {
|
|
printf("%s ", visbuf);
|
|
printf("%s\n", argv[arg_counter]);
|
|
} else {
|
|
printf("%s:", argv[arg_counter]);
|
|
printf(" \"%s\"\n", visbuf);
|
|
}
|
|
free(visbuf);
|
|
} else {
|
|
printf("%s:", argv[arg_counter]);
|
|
for (i = 0; i < error; i++)
|
|
if (i % 16 == 0)
|
|
printf("\n %02x ", buf[i]);
|
|
else if (i % 8 == 0)
|
|
printf(" %02x ", buf[i]);
|
|
else
|
|
printf("%02x ", buf[i]);
|
|
printf("\n");
|
|
}
|
|
}
|
|
free(buf);
|
|
}
|
|
|
|
return (0);
|
|
}
|