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Issue #3805: clean up implementation of the _read method in _ssl.c.

This commit is contained in:
Antoine Pitrou 2010-09-03 18:38:17 +00:00
parent aa44b2b5ca
commit 24e561ae04
2 changed files with 33 additions and 32 deletions
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6
Lib/ssl.py
View File

@ -199,14 +199,14 @@ class SSLSocket(socket):
self._checkClosed()
try:
if buffer:
v = self._sslobj.read(buffer, len)
if buffer is not None:
v = self._sslobj.read(len, buffer)
else:
v = self._sslobj.read(len or 1024)
return v
except SSLError as x:
if x.args[0] == SSL_ERROR_EOF and self.suppress_ragged_eofs:
if buffer:
if buffer is not None:
return 0
else:
return b''

55
Modules/_ssl.c
View File

@ -1156,11 +1156,9 @@ static PyObject *PySSL_SSLread(PySSLSocket *self, PyObject *args)
{
PyObject *dest = NULL;
Py_buffer buf;
int buf_passed = 0;
int count = -1;
char *mem;
/* XXX this should use Py_ssize_t */
int len = 1024;
int len, count;
int buf_passed = 0;
int sockstate;
int err;
int nonblocking;
@ -1174,26 +1172,28 @@ static PyObject *PySSL_SSLread(PySSLSocket *self, PyObject *args)
}
Py_INCREF(sock);
if (!PyArg_ParseTuple(args, "|Oi:read", &dest, &count))
buf.obj = NULL;
buf.buf = NULL;
if (!PyArg_ParseTuple(args, "i|w*:read", &len, &buf))
goto error;
if ((dest == NULL) || (dest == Py_None)) {
if (!(dest = PyByteArray_FromStringAndSize((char *) 0, len)))
if ((buf.buf == NULL) && (buf.obj == NULL)) {
dest = PyBytes_FromStringAndSize(NULL, len);
if (dest == NULL)
goto error;
mem = PyByteArray_AS_STRING(dest);
} else if (PyLong_Check(dest)) {
len = PyLong_AS_LONG(dest);
if (!(dest = PyByteArray_FromStringAndSize((char *) 0, len)))
goto error;
mem = PyByteArray_AS_STRING(dest);
} else {
if (PyObject_GetBuffer(dest, &buf, PyBUF_CONTIG) < 0)
goto error;
mem = buf.buf;
len = buf.len;
if ((count > 0) && (count <= len))
len = count;
mem = PyBytes_AS_STRING(dest);
}
else {
buf_passed = 1;
mem = buf.buf;
if (len <= 0 || len > buf.len) {
len = (int) buf.len;
if (buf.len != len) {
PyErr_SetString(PyExc_OverflowError,
"maximum length can't fit in a C 'int'");
goto error;
}
}
}
/* just in case the blocking state of the socket has been changed */
@ -1254,23 +1254,24 @@ static PyObject *PySSL_SSLread(PySSLSocket *self, PyObject *args)
PySSL_SetError(self, count, __FILE__, __LINE__);
goto error;
}
done:
Py_DECREF(sock);
if (!buf_passed) {
PyObject *res = PyBytes_FromStringAndSize(mem, count);
Py_DECREF(dest);
return res;
} else {
_PyBytes_Resize(&dest, count);
return dest;
}
else {
PyBuffer_Release(&buf);
return PyLong_FromLong(count);
}
error:
Py_DECREF(sock);
if (!buf_passed) {
if (!buf_passed)
Py_XDECREF(dest);
} else {
else
PyBuffer_Release(&buf);
}
return NULL;
}