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/*
Unix SMB/CIFS implementation.
reproducer for bug 6898
Copyright (C) Volker Lendecke 2009
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "torture/proto.h"
#include "../libcli/security/security.h"
/*
* Make sure that GENERIC_WRITE does not trigger append. See
* https://bugzilla.samba.org/show_bug.cgi?id=6898
*/
bool run_posix_append(int dummy)
{
struct cli_state *cli;
const char *fname = "append";
NTSTATUS status;
uint16_t fnum;
ssize_t written;
SMB_OFF_T size;
char c = '\0';
bool ret = false;
printf("Starting POSIX_APPEND\n");
if (!torture_open_connection(&cli, 0)) {
return false;
}
status = torture_setup_unix_extensions(cli);
if (!NT_STATUS_IS_OK(status)) {
printf("torture_setup_unix_extensions failed: %s\n",
nt_errstr(status));
goto fail;
}
status = cli_ntcreate(
cli, fname, 0,
GENERIC_WRITE_ACCESS|GENERIC_READ_ACCESS|DELETE_ACCESS,
FILE_ATTRIBUTE_NORMAL|FILE_FLAG_POSIX_SEMANTICS,
FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
FILE_OVERWRITE_IF,
FILE_NON_DIRECTORY_FILE|FILE_DELETE_ON_CLOSE,
0, &fnum);
if (!NT_STATUS_IS_OK(status)) {
printf("cli_ntcreate failed: %s\n", nt_errstr(status));
goto fail;
}
/*
* Write two bytes at offset 0. With bug 6898 we would end up
* with a file of 2 byte length.
*/
written = cli_write(cli, fnum, 0, &c, 0, sizeof(c));
if (written != sizeof(c)) {
printf("cli_write failed\n");
goto fail;
}
written = cli_write(cli, fnum, 0, &c, 0, sizeof(c));
if (written != sizeof(c)) {
printf("cli_write failed\n");
goto fail;
}
status = cli_getattrE(cli, fnum, NULL, &size, NULL, NULL, NULL);
if (!NT_STATUS_IS_OK(status)) {
printf("cli_getatrE failed: %s\n", nt_errstr(status));
goto fail;
}
if (size != sizeof(c)) {
printf("BUG: Writing with O_APPEND!!\n");
goto fail;
}
ret = true;
fail:
torture_close_connection(cli);
return ret;
}
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