| Current Path : /compat/linux/proc/self/root/usr/src/bin/getfacl/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //compat/linux/proc/self/root/usr/src/bin/getfacl/getfacl.c |
/*-
* Copyright (c) 1999, 2001, 2002 Robert N M Watson
* All rights reserved.
*
* This software was developed by Robert Watson for the TrustedBSD Project.
*
* 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.
*/
/*
* getfacl -- POSIX.1e utility to extract ACLs from files and directories
* and send the results to stdout
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/bin/getfacl/getfacl.c 196827 2009-09-04 10:22:29Z trasz $");
#include <sys/types.h>
#include <sys/param.h>
#include <sys/acl.h>
#include <sys/stat.h>
#include <err.h>
#include <errno.h>
#include <grp.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
int more_than_one = 0;
static void
usage(void)
{
fprintf(stderr, "getfacl [-dhnqv] [file ...]\n");
}
static char *
getuname(uid_t uid)
{
struct passwd *pw;
static char uids[10];
if ((pw = getpwuid(uid)) == NULL) {
(void)snprintf(uids, sizeof(uids), "%u", uid);
return (uids);
} else
return (pw->pw_name);
}
static char *
getgname(gid_t gid)
{
struct group *gr;
static char gids[10];
if ((gr = getgrgid(gid)) == NULL) {
(void)snprintf(gids, sizeof(gids), "%u", gid);
return (gids);
} else
return (gr->gr_name);
}
/*
* return an ACL corresponding to the permissions
* contained in struct stat
*/
static acl_t
acl_from_stat(struct stat sb)
{
acl_t acl;
acl_entry_t entry;
acl_permset_t perms;
/* create the ACL */
acl = acl_init(3);
if (!acl)
return NULL;
/* First entry: ACL_USER_OBJ */
if (acl_create_entry(&acl, &entry) == -1)
return NULL;
if (acl_set_tag_type(entry, ACL_USER_OBJ) == -1)
return NULL;
if (acl_get_permset(entry, &perms) == -1)
return NULL;
if (acl_clear_perms(perms) == -1)
return NULL;
/* calculate user mode */
if (sb.st_mode & S_IRUSR)
if (acl_add_perm(perms, ACL_READ) == -1)
return NULL;
if (sb.st_mode & S_IWUSR)
if (acl_add_perm(perms, ACL_WRITE) == -1)
return NULL;
if (sb.st_mode & S_IXUSR)
if (acl_add_perm(perms, ACL_EXECUTE) == -1)
return NULL;
if (acl_set_permset(entry, perms) == -1)
return NULL;
/* Second entry: ACL_GROUP_OBJ */
if (acl_create_entry(&acl, &entry) == -1)
return NULL;
if (acl_set_tag_type(entry, ACL_GROUP_OBJ) == -1)
return NULL;
if (acl_get_permset(entry, &perms) == -1)
return NULL;
if (acl_clear_perms(perms) == -1)
return NULL;
/* calculate group mode */
if (sb.st_mode & S_IRGRP)
if (acl_add_perm(perms, ACL_READ) == -1)
return NULL;
if (sb.st_mode & S_IWGRP)
if (acl_add_perm(perms, ACL_WRITE) == -1)
return NULL;
if (sb.st_mode & S_IXGRP)
if (acl_add_perm(perms, ACL_EXECUTE) == -1)
return NULL;
if (acl_set_permset(entry, perms) == -1)
return NULL;
/* Third entry: ACL_OTHER */
if (acl_create_entry(&acl, &entry) == -1)
return NULL;
if (acl_set_tag_type(entry, ACL_OTHER) == -1)
return NULL;
if (acl_get_permset(entry, &perms) == -1)
return NULL;
if (acl_clear_perms(perms) == -1)
return NULL;
/* calculate other mode */
if (sb.st_mode & S_IROTH)
if (acl_add_perm(perms, ACL_READ) == -1)
return NULL;
if (sb.st_mode & S_IWOTH)
if (acl_add_perm(perms, ACL_WRITE) == -1)
return NULL;
if (sb.st_mode & S_IXOTH)
if (acl_add_perm(perms, ACL_EXECUTE) == -1)
return NULL;
if (acl_set_permset(entry, perms) == -1)
return NULL;
return(acl);
}
static int
print_acl(char *path, acl_type_t type, int hflag, int iflag, int nflag,
int qflag, int vflag)
{
struct stat sb;
acl_t acl;
char *acl_text;
int error, flags = 0, ret;
if (hflag)
error = lstat(path, &sb);
else
error = stat(path, &sb);
if (error == -1) {
warn("%s: stat() failed", path);
return(-1);
}
if (hflag)
ret = lpathconf(path, _PC_ACL_NFS4);
else
ret = pathconf(path, _PC_ACL_NFS4);
if (ret > 0) {
if (type == ACL_TYPE_DEFAULT) {
warnx("%s: there are no default entries in NFSv4 ACLs",
path);
return (-1);
}
type = ACL_TYPE_NFS4;
} else if (ret < 0 && errno != EINVAL) {
warn("%s: pathconf(..., _PC_ACL_NFS4) failed", path);
return (-1);
}
if (more_than_one)
printf("\n");
else
more_than_one++;
if (!qflag)
printf("# file: %s\n# owner: %s\n# group: %s\n", path,
getuname(sb.st_uid), getgname(sb.st_gid));
if (hflag)
acl = acl_get_link_np(path, type);
else
acl = acl_get_file(path, type);
if (!acl) {
if (errno != EOPNOTSUPP) {
warn("%s", path);
return(-1);
}
errno = 0;
if (type == ACL_TYPE_DEFAULT)
return(0);
acl = acl_from_stat(sb);
if (!acl) {
warn("%s: acl_from_stat() failed", path);
return(-1);
}
}
if (iflag)
flags |= ACL_TEXT_APPEND_ID;
if (nflag)
flags |= ACL_TEXT_NUMERIC_IDS;
if (vflag)
flags |= ACL_TEXT_VERBOSE;
acl_text = acl_to_text_np(acl, 0, flags);
if (!acl_text) {
warn("%s: acl_to_text_np() failed", path);
return(-1);
}
printf("%s", acl_text);
(void)acl_free(acl);
(void)acl_free(acl_text);
return(0);
}
static int
print_acl_from_stdin(acl_type_t type, int hflag, int iflag, int nflag,
int qflag, int vflag)
{
char *p, pathname[PATH_MAX];
int carried_error = 0;
while (fgets(pathname, (int)sizeof(pathname), stdin)) {
if ((p = strchr(pathname, '\n')) != NULL)
*p = '\0';
if (print_acl(pathname, type, hflag, iflag, nflag,
qflag, vflag) == -1) {
carried_error = -1;
}
}
return(carried_error);
}
int
main(int argc, char *argv[])
{
acl_type_t type = ACL_TYPE_ACCESS;
int carried_error = 0;
int ch, error, i;
int hflag, iflag, qflag, nflag, vflag;
hflag = 0;
iflag = 0;
qflag = 0;
nflag = 0;
vflag = 0;
while ((ch = getopt(argc, argv, "dhinqv")) != -1)
switch(ch) {
case 'd':
type = ACL_TYPE_DEFAULT;
break;
case 'h':
hflag = 1;
break;
case 'i':
iflag = 1;
break;
case 'n':
nflag = 1;
break;
case 'q':
qflag = 1;
break;
case 'v':
vflag = 1;
break;
default:
usage();
return(-1);
}
argc -= optind;
argv += optind;
if (argc == 0) {
error = print_acl_from_stdin(type, hflag, iflag, nflag,
qflag, vflag);
return(error ? 1 : 0);
}
for (i = 0; i < argc; i++) {
if (!strcmp(argv[i], "-")) {
error = print_acl_from_stdin(type, hflag, iflag, nflag,
qflag, vflag);
if (error == -1)
carried_error = -1;
} else {
error = print_acl(argv[i], type, hflag, iflag, nflag,
qflag, vflag);
if (error == -1)
carried_error = -1;
}
}
return(carried_error ? 1 : 0);
}