source4/utils/getntacl.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Get NT ACLs from UNIX files.
   5
   6    Copyright (C) Tim Potter <tpot@samba.org> 2005
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23 #include "includes.h"
  24 #include "system/filesys.h"
  25 #include "librpc/gen_ndr/ndr_xattr.h"
  26
  27 #if HAVE_XATTR_SUPPORT
  28
  29 static void ntacl_print_debug_helper(struct ndr_print *ndr, const char *format, ...) PRINTF_ATTRIBUTE(2,3);
  30
  31 static void ntacl_print_debug_helper(struct ndr_print *ndr, const char *format, ...)
  32 {
  33         va_list ap;
  34         char *s = NULL;
  35         int i;
  36
  37         va_start(ap, format);
  38         vasprintf(&s, format, ap);
  39         va_end(ap);
  40
  41         for (i=0;i<ndr->depth;i++) {
  42                 printf("    ");
  43         }
  44
  45         printf("%s\n", s);
  46         free(s);
  47 }
  48
  49 static NTSTATUS get_ntacl(char *filename, struct xattr_NTACL **ntacl,
  50                           ssize_t *ntacl_len)
  51 {
  52         DATA_BLOB blob;
  53         ssize_t size;
  54         NTSTATUS result;
  55         struct ndr_pull *ndr;
  56         struct ndr_print *pr;
  57
  58         *ntacl = talloc(NULL, struct xattr_NTACL);
  59
  60         size = getxattr(filename, XATTR_NTACL_NAME, NULL, 0);
  61
  62         if (size < 0) {
  63                 fprintf(stderr, "get_ntacl: %s\n", strerror(errno));
  64                 return NT_STATUS_INTERNAL_ERROR;
  65         }
  66
  67         blob.data = talloc_size(*ntacl, size);
  68         size = getxattr(filename, XATTR_NTACL_NAME, blob.data, size);
  69         if (size < 0) {
  70                 fprintf(stderr, "get_ntacl: %s\n", strerror(errno));
  71                 return NT_STATUS_INTERNAL_ERROR;
  72         }
  73         blob.length = size;
  74
  75         ndr = ndr_pull_init_blob(&blob, NULL);
  76
  77         result = ndr_pull_xattr_NTACL(ndr, NDR_SCALARS|NDR_BUFFERS, *ntacl);
  78
  79         if (NT_STATUS_IS_OK(result)) {
  80                 pr = talloc(*ntacl, struct ndr_print);
  81                 pr->print = ntacl_print_debug_helper;
  82                 pr->depth = 0;
  83                 pr->flags = 0;
  84
  85                 ndr_print_xattr_NTACL(pr, filename, *ntacl);
  86         }
  87
  88         return result;
  89 }
  90
  91 static void print_ntacl(struct xattr_NTACL *ntacl)
  92 {
  93 }
  94
  95 int main(int argc, char *argv[])
  96 {
  97         struct xattr_NTACL *ntacl;
  98         ssize_t ntacl_len;
  99
 100         if (argc != 2) {
 101                 fprintf(stderr, "Usage: getntacl FILENAME\n");
 102                 return 1;
 103         }
 104
 105
 106         get_ntacl(argv[1], &ntacl, &ntacl_len);
 107
 108         print_ntacl(ntacl);
 109
 110         return 0;
 111 }
 112
 113 #else
 114
 115 int main(int argc, char *argv[])
 116 {
 117         printf("getntacl: not compiled with xattr support!\n");
 118         return 1;
 119
 120 }
 121
 122 #endif