[Python-checkins] cpython: sqlite: raise an OverflowError if a string or a BLOB is longer than INT_MAX
victor.stinner
python-checkins at python.org
Mon Nov 18 01:56:51 CET 2013
http://hg.python.org/cpython/rev/40d25b2b93f0
changeset: 87234:40d25b2b93f0
user: Victor Stinner <victor.stinner at gmail.com>
date: Mon Nov 18 01:36:29 2013 +0100
summary:
sqlite: raise an OverflowError if a string or a BLOB is longer than INT_MAX
bytes
Fix compiler warnings on Windows 64-bit
files:
Modules/_sqlite/statement.c | 24 ++++++++++++++++--------
1 files changed, 16 insertions(+), 8 deletions(-)
diff --git a/Modules/_sqlite/statement.c b/Modules/_sqlite/statement.c
--- a/Modules/_sqlite/statement.c
+++ b/Modules/_sqlite/statement.c
@@ -132,18 +132,26 @@
break;
case TYPE_UNICODE:
string = _PyUnicode_AsStringAndSize(parameter, &buflen);
- if (string != NULL)
- rc = sqlite3_bind_text(self->st, pos, string, buflen, SQLITE_TRANSIENT);
- else
- rc = -1;
+ if (string == NULL)
+ return -1;
+ if (buflen > INT_MAX) {
+ PyErr_SetString(PyExc_OverflowError,
+ "string longer than INT_MAX bytes");
+ return -1;
+ }
+ rc = sqlite3_bind_text(self->st, pos, string, (int)buflen, SQLITE_TRANSIENT);
break;
case TYPE_BUFFER:
- if (PyObject_AsCharBuffer(parameter, &buffer, &buflen) == 0) {
- rc = sqlite3_bind_blob(self->st, pos, buffer, buflen, SQLITE_TRANSIENT);
- } else {
+ if (PyObject_AsCharBuffer(parameter, &buffer, &buflen) != 0) {
PyErr_SetString(PyExc_ValueError, "could not convert BLOB to buffer");
- rc = -1;
+ return -1;
}
+ if (buflen > INT_MAX) {
+ PyErr_SetString(PyExc_OverflowError,
+ "BLOB longer than INT_MAX bytes");
+ return -1;
+ }
+ rc = sqlite3_bind_blob(self->st, pos, buffer, buflen, SQLITE_TRANSIENT);
break;
case TYPE_UNKNOWN:
rc = -1;
--
Repository URL: http://hg.python.org/cpython
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