diff options
Diffstat (limited to 'Modules/posixmodule.c')
-rw-r--r-- | Modules/posixmodule.c | 310 |
1 files changed, 310 insertions, 0 deletions
diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c index b84fb0d..cba6cea 100644 --- a/Modules/posixmodule.c +++ b/Modules/posixmodule.c @@ -4490,6 +4490,311 @@ os__path_splitroot_impl(PyObject *module, path_t *path) } +/*[clinic input] +os._path_isdir + + path: 'O' + +Return true if the pathname refers to an existing directory. + +[clinic start generated code]*/ + +static PyObject * +os__path_isdir_impl(PyObject *module, PyObject *path) +/*[clinic end generated code: output=00faea0af309669d input=b1d2571cf7291aaf]*/ +{ + HANDLE hfile; + BOOL close_file = TRUE; + FILE_BASIC_INFO info; + path_t _path = PATH_T_INITIALIZE("isdir", "path", 0, 1); + int result; + + if (!path_converter(path, &_path)) { + path_cleanup(&_path); + if (PyErr_ExceptionMatches(PyExc_ValueError)) { + PyErr_Clear(); + Py_RETURN_FALSE; + } + return NULL; + } + + Py_BEGIN_ALLOW_THREADS + if (_path.fd != -1) { + hfile = _Py_get_osfhandle_noraise(_path.fd); + close_file = FALSE; + } + else { + hfile = CreateFileW(_path.wide, FILE_READ_ATTRIBUTES, 0, NULL, + OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL); + } + if (hfile != INVALID_HANDLE_VALUE) { + if (GetFileInformationByHandleEx(hfile, FileBasicInfo, &info, + sizeof(info))) + { + result = info.FileAttributes & FILE_ATTRIBUTE_DIRECTORY; + } + else { + result = 0; + } + if (close_file) { + CloseHandle(hfile); + } + } + else { + STRUCT_STAT st; + switch (GetLastError()) { + case ERROR_ACCESS_DENIED: + case ERROR_SHARING_VIOLATION: + case ERROR_CANT_ACCESS_FILE: + case ERROR_INVALID_PARAMETER: + if (STAT(_path.wide, &st)) { + result = 0; + } + else { + result = S_ISDIR(st.st_mode); + } + break; + default: + result = 0; + } + } + Py_END_ALLOW_THREADS + + path_cleanup(&_path); + if (result) { + Py_RETURN_TRUE; + } + Py_RETURN_FALSE; +} + + +/*[clinic input] +os._path_isfile + + path: 'O' + +Test whether a path is a regular file + +[clinic start generated code]*/ + +static PyObject * +os__path_isfile_impl(PyObject *module, PyObject *path) +/*[clinic end generated code: output=2394ed7c4b5cfd85 input=de22d74960ade365]*/ +{ + HANDLE hfile; + BOOL close_file = TRUE; + FILE_BASIC_INFO info; + path_t _path = PATH_T_INITIALIZE("isfile", "path", 0, 1); + int result; + + if (!path_converter(path, &_path)) { + path_cleanup(&_path); + if (PyErr_ExceptionMatches(PyExc_ValueError)) { + PyErr_Clear(); + Py_RETURN_FALSE; + } + return NULL; + } + + Py_BEGIN_ALLOW_THREADS + if (_path.fd != -1) { + hfile = _Py_get_osfhandle_noraise(_path.fd); + close_file = FALSE; + } + else { + hfile = CreateFileW(_path.wide, FILE_READ_ATTRIBUTES, 0, NULL, + OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL); + } + if (hfile != INVALID_HANDLE_VALUE) { + if (GetFileInformationByHandleEx(hfile, FileBasicInfo, &info, + sizeof(info))) + { + result = !(info.FileAttributes & FILE_ATTRIBUTE_DIRECTORY); + } + else { + result = 0; + } + if (close_file) { + CloseHandle(hfile); + } + } + else { + STRUCT_STAT st; + switch (GetLastError()) { + case ERROR_ACCESS_DENIED: + case ERROR_SHARING_VIOLATION: + case ERROR_CANT_ACCESS_FILE: + case ERROR_INVALID_PARAMETER: + if (STAT(_path.wide, &st)) { + result = 0; + } + else { + result = S_ISREG(st.st_mode); + } + break; + default: + result = 0; + } + } + Py_END_ALLOW_THREADS + + path_cleanup(&_path); + if (result) { + Py_RETURN_TRUE; + } + Py_RETURN_FALSE; +} + + +/*[clinic input] +os._path_exists + + path: 'O' + +Test whether a path exists. Returns False for broken symbolic links + +[clinic start generated code]*/ + +static PyObject * +os__path_exists_impl(PyObject *module, PyObject *path) +/*[clinic end generated code: output=f508c3b35e13a249 input=380f77cdfa0f7ae8]*/ +{ + HANDLE hfile; + BOOL close_file = TRUE; + path_t _path = PATH_T_INITIALIZE("exists", "path", 0, 1); + int result; + + if (!path_converter(path, &_path)) { + path_cleanup(&_path); + if (PyErr_ExceptionMatches(PyExc_ValueError)) { + PyErr_Clear(); + Py_RETURN_FALSE; + } + return NULL; + } + + Py_BEGIN_ALLOW_THREADS + if (_path.fd != -1) { + hfile = _Py_get_osfhandle_noraise(_path.fd); + close_file = FALSE; + } + else { + hfile = CreateFileW(_path.wide, FILE_READ_ATTRIBUTES, 0, NULL, + OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL); + } + if (hfile != INVALID_HANDLE_VALUE) { + result = 1; + if (close_file) { + CloseHandle(hfile); + } + } + else { + STRUCT_STAT st; + switch (GetLastError()) { + case ERROR_ACCESS_DENIED: + case ERROR_SHARING_VIOLATION: + case ERROR_CANT_ACCESS_FILE: + case ERROR_INVALID_PARAMETER: + if (STAT(_path.wide, &st)) { + result = 0; + } + else { + result = 1; + } + break; + default: + result = 0; + } + } + Py_END_ALLOW_THREADS + + path_cleanup(&_path); + if (result) { + Py_RETURN_TRUE; + } + Py_RETURN_FALSE; +} + + +/*[clinic input] +os._path_islink + + path: 'O' + +Test whether a path is a symbolic link + +[clinic start generated code]*/ + +static PyObject * +os__path_islink_impl(PyObject *module, PyObject *path) +/*[clinic end generated code: output=6d8640b1a390c054 input=38a3cb937ccf59bf]*/ +{ + HANDLE hfile; + BOOL close_file = TRUE; + FILE_ATTRIBUTE_TAG_INFO info; + path_t _path = PATH_T_INITIALIZE("islink", "path", 0, 1); + int result; + + if (!path_converter(path, &_path)) { + path_cleanup(&_path); + if (PyErr_ExceptionMatches(PyExc_ValueError)) { + PyErr_Clear(); + Py_RETURN_FALSE; + } + return NULL; + } + + Py_BEGIN_ALLOW_THREADS + if (_path.fd != -1) { + hfile = _Py_get_osfhandle_noraise(_path.fd); + close_file = FALSE; + } + else { + hfile = CreateFileW(_path.wide, FILE_READ_ATTRIBUTES, 0, NULL, + OPEN_EXISTING, + FILE_FLAG_OPEN_REPARSE_POINT | FILE_FLAG_BACKUP_SEMANTICS, + NULL); + } + if (hfile != INVALID_HANDLE_VALUE) { + if (GetFileInformationByHandleEx(hfile, FileAttributeTagInfo, &info, + sizeof(info))) + { + result = (info.ReparseTag == IO_REPARSE_TAG_SYMLINK); + } + else { + result = 0; + } + if (close_file) { + CloseHandle(hfile); + } + } + else { + STRUCT_STAT st; + switch (GetLastError()) { + case ERROR_ACCESS_DENIED: + case ERROR_SHARING_VIOLATION: + case ERROR_CANT_ACCESS_FILE: + case ERROR_INVALID_PARAMETER: + if (LSTAT(_path.wide, &st)) { + result = 0; + } + else { + result = S_ISLNK(st.st_mode); + } + break; + default: + result = 0; + } + } + Py_END_ALLOW_THREADS + + path_cleanup(&_path); + if (result) { + Py_RETURN_TRUE; + } + Py_RETURN_FALSE; +} + #endif /* MS_WINDOWS */ @@ -15150,6 +15455,11 @@ static PyMethodDef posix_methods[] = { OS_WAITSTATUS_TO_EXITCODE_METHODDEF OS_SETNS_METHODDEF OS_UNSHARE_METHODDEF + + OS__PATH_ISDIR_METHODDEF + OS__PATH_ISFILE_METHODDEF + OS__PATH_ISLINK_METHODDEF + OS__PATH_EXISTS_METHODDEF {NULL, NULL} /* Sentinel */ }; |