* Copyright (c) 1988 Regents of the University of California.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* 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
"@(#) Copyright (c) 1988 Regents of the University of California.\n\
static char sccsid
[] = "@(#)chown.c 5.18 (Berkeley) 3/9/91";
int ischown
, uid
, gid
, fflag
, rflag
, retval
;
myname
= (cp
= rindex(*argv
, '/')) ? cp
+ 1 : *argv
;
ischown
= myname
[2] == 'o';
while ((ch
= getopt(argc
, argv
, "Rf")) != EOF
)
if (cp
= index(*argv
, '.')) {
if (cp
= index(*argv
, ':')) {
if (!(fts
= fts_open(++argv
, FTS_NOSTAT
|FTS_PHYSICAL
, 0))) {
"%s: %s.\n", myname
, strerror(errno
));
while (p
= fts_read(fts
)) {
if (p
->fts_info
== FTS_D
)
if (p
->fts_info
== FTS_ERR
) {
if (chown(p
->fts_accpath
, uid
, gid
) && !fflag
)
if (chown(*argv
, uid
, gid
) && !fflag
)
gid
= -1; /* argument was "uid." */
for (; *s
&& isdigit(*s
); ++s
);
(void)fprintf(stderr
, "%s: unknown group id: %s\n",
uid
= -1; /* argument was ".gid" */
for (uname
= s
; *s
&& isdigit(*s
); ++s
);
"chown: unknown user id: %s\n", uname
);
static int euid
= -1, ngroups
= -1;
/* check for chown without being root */
if (errno
!= EPERM
|| uid
!= -1 && euid
== -1 && (euid
= geteuid())) {
/* check group membership; kernel just returns EPERM */
if (gid
!= -1 && ngroups
== -1) {
ngroups
= getgroups(NGROUPS
, groups
);
while (--ngroups
>= 0 && gid
!= groups
[ngroups
]);
"%s: you are not a member of group %s.\n",
(void)fprintf(stderr
, "%s: %s: %s\n", myname
, name
, strerror(errno
));
(void)fprintf(stderr
, "usage: %s [-Rf] %s file ...\n", myname
,
ischown
? "[owner][:group]" : "group");