mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-12-30 23:48:09 +01:00
c577145195
for displaying the three-line comment header by default. Reviewed by: kientzle Approved by: re (bmah)
300 lines
6.5 KiB
C
300 lines
6.5 KiB
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("$FreeBSD$");
|
|
|
|
#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 [-dhq] [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 qflag)
|
|
{
|
|
struct stat sb;
|
|
acl_t acl;
|
|
char *acl_text;
|
|
int error;
|
|
|
|
if (hflag)
|
|
error = lstat(path, &sb);
|
|
else
|
|
error = stat(path, &sb);
|
|
if (error == -1) {
|
|
warn("%s", 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_ACCESS)
|
|
return(0);
|
|
acl = acl_from_stat(sb);
|
|
if (!acl) {
|
|
warn("acl_from_stat()");
|
|
return(-1);
|
|
}
|
|
}
|
|
|
|
acl_text = acl_to_text(acl, 0);
|
|
if (!acl_text) {
|
|
warn("%s", 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 qflag)
|
|
{
|
|
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, qflag) == -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, qflag;
|
|
|
|
hflag = 0;
|
|
qflag = 0;
|
|
while ((ch = getopt(argc, argv, "dhq")) != -1)
|
|
switch(ch) {
|
|
case 'd':
|
|
type = ACL_TYPE_DEFAULT;
|
|
break;
|
|
case 'h':
|
|
hflag = 1;
|
|
break;
|
|
case 'q':
|
|
qflag = 1;
|
|
break;
|
|
default:
|
|
usage();
|
|
return(-1);
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if (argc == 0) {
|
|
error = print_acl_from_stdin(type, hflag, qflag);
|
|
return(error ? 1 : 0);
|
|
}
|
|
|
|
for (i = 0; i < argc; i++) {
|
|
if (!strcmp(argv[i], "-")) {
|
|
error = print_acl_from_stdin(type, hflag, qflag);
|
|
if (error == -1)
|
|
carried_error = -1;
|
|
} else {
|
|
error = print_acl(argv[i], type, hflag, qflag);
|
|
if (error == -1)
|
|
carried_error = -1;
|
|
}
|
|
}
|
|
|
|
return(carried_error ? 1 : 0);
|
|
}
|