2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 2002, 2003 Networks Associates Technology, Inc.
5 * Copyright (c) 2002 Poul-Henning Kamp.
6 * Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson
9 * This software was developed for the FreeBSD Project by Poul-Henning
10 * Kamp and Network Associates Laboratories, the Security Research Division
11 * of Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
12 * ("CBOSS"), as part of the DARPA CHATS research program
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in the
21 * documentation and/or other materials provided with the distribution.
22 * 3. The names of the authors may not be used to endorse or promote
23 * products derived from this software without specific prior written
26 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41 #include <sys/types.h>
44 #include <sys/extattr.h>
56 static enum { EADUNNO, EAGET, EASET, EARM, EALS } what = EADUNNO;
64 fprintf(stderr, "usage: getextattr [-fhqsx] attrnamespace");
65 fprintf(stderr, " attrname filename ...\n");
68 fprintf(stderr, "usage: setextattr [-fhnq] attrnamespace");
69 fprintf(stderr, " attrname attrvalue filename ...\n");
70 fprintf(stderr, " or setextattr -i [-fhnq] attrnamespace");
71 fprintf(stderr, " attrname filename ...\n");
74 fprintf(stderr, "usage: rmextattr [-fhq] attrnamespace");
75 fprintf(stderr, " attrname filename ...\n");
78 fprintf(stderr, "usage: lsextattr [-fhq] attrnamespace");
79 fprintf(stderr, " filename ...\n");
83 fprintf(stderr, "usage: (getextattr|lsextattr|rmextattr");
84 fprintf(stderr, "|setextattr)\n");
90 mkbuf(char **buf, int *oldlen, int newlen)
93 if (*oldlen >= newlen)
97 *buf = malloc(newlen);
105 main(int argc, char *argv[])
107 #define STDIN_BUF_SZ 4096
108 char stdin_data[STDIN_BUF_SZ];
111 const char *options, *attrname;
114 int ch, error, i, arg_counter, attrnamespace, minargc;
120 struct sbuf *attrvalue = NULL;
122 int flag_nofollow = 0;
125 int flag_from_stdin = 0;
129 p = basename(argv[0]);
132 if (!strcmp(p, "getextattr")) {
136 } else if (!strcmp(p, "setextattr")) {
140 } else if (!strcmp(p, "rmextattr")) {
144 } else if (!strcmp(p, "lsextattr")) {
152 while ((ch = getopt(argc, argv, options)) != -1) {
184 if (what == EASET && flag_from_stdin == 0)
190 error = extattr_string_to_namespace(argv[0], &attrnamespace);
192 err(-1, "%s", argv[0]);
202 attrvalue = sbuf_new_auto();
203 if (flag_from_stdin) {
204 while ((error = read(0, stdin_data, STDIN_BUF_SZ)) > 0)
205 sbuf_bcat(attrvalue, stdin_data, error);
207 sbuf_cpy(attrvalue, argv[0]);
210 sbuf_finish(attrvalue);
213 for (arg_counter = 0; arg_counter < argc; arg_counter++) {
217 error = extattr_delete_link(argv[arg_counter],
218 attrnamespace, attrname);
220 error = extattr_delete_file(argv[arg_counter],
221 attrnamespace, attrname);
226 len = sbuf_len(attrvalue) + flag_null;
228 ret = extattr_set_link(argv[arg_counter],
229 attrnamespace, attrname,
230 sbuf_data(attrvalue), len);
232 ret = extattr_set_file(argv[arg_counter],
233 attrnamespace, attrname,
234 sbuf_data(attrvalue), len);
236 if ((size_t)ret != len && !count_quiet) {
237 warnx("Set %zd bytes of %zu for %s",
245 ret = extattr_list_link(argv[arg_counter],
246 attrnamespace, NULL, 0);
248 ret = extattr_list_file(argv[arg_counter],
249 attrnamespace, NULL, 0);
252 mkbuf(&buf, &buflen, ret);
254 ret = extattr_list_link(argv[arg_counter],
255 attrnamespace, buf, buflen);
257 ret = extattr_list_file(argv[arg_counter],
258 attrnamespace, buf, buflen);
262 printf("%s\t", argv[arg_counter]);
263 for (i = 0; i < ret; i += ch + 1) {
264 /* The attribute name length is unsigned. */
265 ch = (unsigned char)buf[i];
266 printf("%s%*.*s", i ? "\t" : "",
267 ch, ch, buf + i + 1);
269 if (!count_quiet || ret > 0)
274 ret = extattr_get_link(argv[arg_counter],
275 attrnamespace, attrname, NULL, 0);
277 ret = extattr_get_file(argv[arg_counter],
278 attrnamespace, attrname, NULL, 0);
281 mkbuf(&buf, &buflen, ret);
283 ret = extattr_get_link(argv[arg_counter],
284 attrnamespace, attrname, buf, buflen);
286 ret = extattr_get_file(argv[arg_counter],
287 attrnamespace, attrname, buf, buflen);
291 printf("%s\t", argv[arg_counter]);
293 mkbuf(&visbuf, &visbuflen, ret * 4 + 1);
294 strvisx(visbuf, buf, ret,
295 VIS_SAFE | VIS_WHITE);
296 printf("\"%s\"", visbuf);
297 } else if (flag_hex) {
298 for (i = 0; i < ret; i++)
299 printf("%s%02x", i ? " " : "",
300 (unsigned char)buf[i]);
302 fwrite(buf, ret, 1, stdout);
311 warn("%s: failed", argv[arg_counter]);