source3/torture/test_posix_append.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    reproducer for bug 6898
   4    Copyright (C) Volker Lendecke 2009
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "includes.h"
  21 #include "torture/proto.h"
  22 #include "../libcli/security/security.h"
  23 #include "libsmb/libsmb.h"
  24 #include "libsmb/clirap.h"
  25
  26 /*
  27  * Make sure that GENERIC_WRITE does not trigger append. See
  28  * https://bugzilla.samba.org/show_bug.cgi?id=6898
  29  */
  30
  31 bool run_posix_append(int dummy)
  32 {
  33         struct cli_state *cli;
  34         const char *fname = "append";
  35         NTSTATUS status;
  36         uint16_t fnum;
  37         off_t size;
  38         uint8_t c = '\0';
  39         bool ret = false;
  40
  41         printf("Starting POSIX_APPEND\n");
  42
  43         if (!torture_open_connection(&cli, 0)) {
  44                 return false;
  45         }
  46
  47         status = torture_setup_unix_extensions(cli);
  48         if (!NT_STATUS_IS_OK(status)) {
  49                 printf("torture_setup_unix_extensions failed: %s\n",
  50                        nt_errstr(status));
  51                 goto fail;
  52         }
  53
  54         status = cli_ntcreate(
  55                 cli, fname, 0,
  56                 GENERIC_WRITE_ACCESS|GENERIC_READ_ACCESS|DELETE_ACCESS,
  57                 FILE_ATTRIBUTE_NORMAL|FILE_FLAG_POSIX_SEMANTICS,
  58                 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
  59                 FILE_OVERWRITE_IF,
  60                 FILE_NON_DIRECTORY_FILE|FILE_DELETE_ON_CLOSE,
  61                 0, &fnum, NULL);
  62
  63         if (!NT_STATUS_IS_OK(status)) {
  64                 printf("cli_ntcreate failed: %s\n", nt_errstr(status));
  65                 goto fail;
  66         }
  67
  68         /*
  69          * Write two bytes at offset 0. With bug 6898 we would end up
  70          * with a file of 2 byte length.
  71          */
  72
  73         status = cli_writeall(cli, fnum, 0, &c, 0, sizeof(c), NULL);
  74         if (!NT_STATUS_IS_OK(status)) {
  75                 printf("cli_write failed: %s\n", nt_errstr(status));
  76                 goto fail;
  77         }
  78         status = cli_writeall(cli, fnum, 0, &c, 0, sizeof(c), NULL);
  79         if (!NT_STATUS_IS_OK(status)) {
  80                 printf("cli_write failed: %s\n", nt_errstr(status));
  81                 goto fail;
  82         }
  83
  84         status = cli_qfileinfo_basic(
  85                 cli, fnum, NULL, &size, NULL, NULL, NULL, NULL, NULL);
  86         if (!NT_STATUS_IS_OK(status)) {
  87                 printf("cli_qfileinfo_basic failed: %s\n", nt_errstr(status));
  88                 goto fail;
  89         }
  90
  91         if (size != sizeof(c)) {
  92                 printf("BUG: Writing with O_APPEND!!\n");
  93                 goto fail;
  94         }
  95
  96         ret = true;
  97 fail:
  98         torture_close_connection(cli);
  99         return ret;
 100 }