psycopg/psycopg2
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Fixed mem and ref leak in connect().

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This commit is contained in:
Federico Di Gregorio 2007-04-10 06:51:35 +00:00
parent e5829292cd
commit d6f2aa27b7
2 changed files with 50 additions and 28 deletions
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3
ChangeLog
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@ -1,5 +1,8 @@
2007-04-10 Federico Di Gregorio <fog@initd.org>
* Applied patch from David Rushby to fix mem and ref leaks in
psycopg2.connect().
* Applied super-patch from David Rushby to fix Python 2.5 and 64
bit problems (all of them, kudos!)

57
psycopg/psycopgmodule.c
View File

@ -126,11 +126,12 @@ _psyco_connect_fill_exc(connectionObject *conn)
static PyObject *
psyco_connect(PyObject *self, PyObject *args, PyObject *keywds)
{
PyObject *conn, *factory = NULL;
PyObject *conn = NULL, *factory = NULL;
PyObject *pyport = NULL;
int idsn=-1, iport=-1;
char *dsn=NULL, *database=NULL, *user=NULL, *password=NULL;
char *dsn_static=NULL, *dsn_dynamic=NULL;
char *database=NULL, *user=NULL, *password=NULL;
char *host=NULL, *sslmode=NULL;
char port[16];
@ -139,28 +140,31 @@ psyco_connect(PyObject *self, PyObject *args, PyObject *keywds)
"connection_factory", NULL};
if (!PyArg_ParseTupleAndKeywords(args, keywds, "|sssOsssO", kwlist,
&dsn, &database, &host, &pyport,
&dsn_static, &database, &host, &pyport,
&user, &password, &sslmode, &factory)) {
return NULL;
}
if (pyport && PyString_Check(pyport)) {
PyObject *pyint = PyInt_FromString(PyString_AsString(pyport), NULL, 10);
if (!pyint) return NULL;
if (!pyint) goto fail;
/* Must use PyInt_AsLong rather than PyInt_AS_LONG, because
* PyInt_FromString can return a PyLongObject: */
iport = PyInt_AsLong(pyint);
Py_DECREF(pyint);
}
else if (pyport && PyInt_Check(pyport)) {
iport = PyInt_AsLong(pyport);
}
else if (pyport != NULL) {
PyErr_SetString(PyExc_TypeError, "port must be a string or int");
return NULL;
goto fail;
}
if (iport > 0)
PyOS_snprintf(port, 16, "%d", iport);
if (dsn == NULL) {
if (dsn_static == NULL) {
int l = 45; /* len("dbname= user= password= host= port= sslmode=\0") */
if (database) l += strlen(database);
@ -170,43 +174,58 @@ psyco_connect(PyObject *self, PyObject *args, PyObject *keywds)
if (password) l += strlen(password);
if (sslmode) l += strlen(sslmode);
dsn = malloc(l*sizeof(char));
if (dsn == NULL) {
dsn_dynamic = malloc(l*sizeof(char));
if (dsn_dynamic == NULL) {
PyErr_SetString(InterfaceError, "dynamic dsn allocation failed");
return NULL;
goto fail;
}
idsn = 0;
if (database)
idsn = _psyco_connect_fill_dsn(dsn, " dbname=", database, idsn);
idsn = _psyco_connect_fill_dsn(dsn_dynamic, " dbname=", database, idsn);
if (host)
idsn = _psyco_connect_fill_dsn(dsn, " host=", host, idsn);
idsn = _psyco_connect_fill_dsn(dsn_dynamic, " host=", host, idsn);
if (iport > 0)
idsn = _psyco_connect_fill_dsn(dsn, " port=", port, idsn);
idsn = _psyco_connect_fill_dsn(dsn_dynamic, " port=", port, idsn);
if (user)
idsn = _psyco_connect_fill_dsn(dsn, " user=", user, idsn);
idsn = _psyco_connect_fill_dsn(dsn_dynamic, " user=", user, idsn);
if (password)
idsn = _psyco_connect_fill_dsn(dsn, " password=", password, idsn);
idsn = _psyco_connect_fill_dsn(dsn_dynamic, " password=", password, idsn);
if (sslmode)
idsn = _psyco_connect_fill_dsn(dsn, " sslmode=", sslmode, idsn);
idsn = _psyco_connect_fill_dsn(dsn_dynamic, " sslmode=", sslmode, idsn);
if (idsn > 0) {
dsn[idsn] = '\0';
memmove(dsn, &dsn[1], idsn);
dsn_dynamic[idsn] = '\0';
memmove(dsn_dynamic, &dsn_dynamic[1], idsn);
}
else {
free(dsn);
PyErr_SetString(InterfaceError, "missing dsn and no parameters");
return NULL;
goto fail;
}
}
{
const char *dsn = (dsn_static != NULL ? dsn_static : dsn_dynamic);
Dprintf("psyco_connect: dsn = '%s'", dsn);
/* allocate connection, fill with errors and return it */
if (factory == NULL) factory = (PyObject *)&connectionType;
conn = PyObject_CallFunction(factory, "s", dsn);
if (conn) _psyco_connect_fill_exc((connectionObject*)conn);
}
goto cleanup;
fail:
assert (PyErr_Occurred());
if (conn != NULL) {
Py_DECREF(conn);
conn = NULL;
}
/* Fall through to cleanup: */
cleanup:
if (dsn_dynamic != NULL) {
free(dsn_dynamic);
}
return conn;
}