diff options
Diffstat (limited to 'source3/libsmb/clierror.c')
| -rw-r--r-- | source3/libsmb/clierror.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/source3/libsmb/clierror.c b/source3/libsmb/clierror.c new file mode 100644 index 0000000..f173006 --- /dev/null +++ b/source3/libsmb/clierror.c @@ -0,0 +1,166 @@ +/* + Unix SMB/CIFS implementation. + client error handling routines + Copyright (C) Andrew Tridgell 1994-1998 + Copyright (C) Jelmer Vernooij 2003 + Copyright (C) Jeremy Allison 2006 + + 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 "libsmb/libsmb.h" +#include "../libcli/smb/smbXcli_base.h" + +/**************************************************************************** + Return the 32-bit NT status code from the last packet. +****************************************************************************/ + +NTSTATUS cli_nt_error(struct cli_state *cli) +{ + /* Deal with socket errors first. */ + if (!cli_state_is_connected(cli)) { + return NT_STATUS_CONNECTION_DISCONNECTED; + } + + if (NT_STATUS_IS_DOS(cli->raw_status)) { + int e_class = NT_STATUS_DOS_CLASS(cli->raw_status); + int code = NT_STATUS_DOS_CODE(cli->raw_status); + return dos_to_ntstatus(e_class, code); + } + + return cli->raw_status; +} + + +/**************************************************************************** + Return the DOS error from the last packet - an error class and an error + code. +****************************************************************************/ + +void cli_dos_error(struct cli_state *cli, uint8_t *eclass, uint32_t *ecode) +{ + if (!cli_state_is_connected(cli)) { + *eclass = ERRDOS; + *ecode = ERRnotconnected; + return; + } + + if (!NT_STATUS_IS_DOS(cli->raw_status)) { + ntstatus_to_dos(cli->raw_status, eclass, ecode); + return; + } + + *eclass = NT_STATUS_DOS_CLASS(cli->raw_status); + *ecode = NT_STATUS_DOS_CODE(cli->raw_status); +} + +int cli_status_to_errno(NTSTATUS status) +{ + int err; + + if (NT_STATUS_IS_DOS(status)) { + uint8_t eclass = NT_STATUS_DOS_CLASS(status); + uint32_t ecode = NT_STATUS_DOS_CODE(status); + status = dos_to_ntstatus(eclass, ecode); + } + + if (NT_STATUS_EQUAL(status, NT_STATUS_STOPPED_ON_SYMLINK)) { + /* + * Legacy code from cli_errno, see Samba up to 4.13: A + * special case for this Vista error. Since its + * high-order byte isn't 0xc0, it won't match + * correctly in map_errno_from_nt_status(). + */ + err = EACCES; + } else { + err = map_errno_from_nt_status(status); + } + + DBG_NOTICE("0x%"PRIx32" -> %d\n", NT_STATUS_V(status), err); + + return err; +} + +/* Return a UNIX errno appropriate for the error received in the last + packet. */ + +int cli_errno(struct cli_state *cli) +{ + bool connected; + int err; + + connected = cli_state_is_connected(cli); + if (!connected) { + return EPIPE; + } + + err = cli_status_to_errno(cli->raw_status); + return err; +} + +/* Return true if the last packet was in error */ + +bool cli_is_error(struct cli_state *cli) +{ + /* A socket error is always an error. */ + if (!cli_state_is_connected(cli)) { + return true; + } + + if (NT_STATUS_IS_DOS(cli->raw_status)) { + /* Return error if error class in non-zero */ + uint8_t rcls = NT_STATUS_DOS_CLASS(cli->raw_status); + return rcls != 0; + } + + return NT_STATUS_IS_ERR(cli->raw_status); +} + +/* Return true if the last error was an NT error */ + +bool cli_is_nt_error(struct cli_state *cli) +{ + /* A socket error is always an NT error. */ + if (!cli_state_is_connected(cli)) { + return true; + } + + return cli_is_error(cli) && !NT_STATUS_IS_DOS(cli->raw_status); +} + +/* Return true if the last error was a DOS error */ + +bool cli_is_dos_error(struct cli_state *cli) +{ + /* A socket error is always a DOS error. */ + if (!cli_state_is_connected(cli)) { + return true; + } + + return cli_is_error(cli) && NT_STATUS_IS_DOS(cli->raw_status); +} + +bool cli_state_is_connected(struct cli_state *cli) +{ + if (cli == NULL) { + return false; + } + + if (!cli->initialised) { + return false; + } + + return smbXcli_conn_is_connected(cli->conn); +} |