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bpo-44822: Don't truncate strs with embedded NULL chars returned by sqlite3 UDF callbacks #27588

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Merged
serhiy-storchaka merged 8 commits into from
Aug 5, 2021
Merged

bpo-44822: Don't truncate strs with embedded NULL chars returned by sqlite3 UDF callbacks #27588

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2241795
bpo-44822: Pass string size to sqlite3_result_text()
Aug 3, 2021
58d3244
Raise OverflowError if size > INT_MAX
Aug 4, 2021
73639f1
Add test
Aug 4, 2021
60d94f9
Add NEWS entry
Aug 4, 2021
10fbc4b
Don't capitalize error string
Aug 4, 2021
a483052
Add aggregate test
Aug 4, 2021
55963ca
Address review: reword NEWS entry
Aug 4, 2021
7a2c279
Apply suggestions from code review
serhiy-storchaka Aug 5, 2021
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bpo-44822: Pass string size to sqlite3_result_text()
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Erlend E. Aasland committed Aug 4, 2021
commit 22417958afd9ee6b19c1f23276388c6a1df446db
11 changes: 8 additions & 3 deletions Modules/_sqlite/connection.c
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Original file line number Diff line number Diff line change
Expand Up @@ -519,10 +519,15 @@ _pysqlite_set_result(sqlite3_context* context, PyObject* py_val)
} else if (PyFloat_Check(py_val)) {
sqlite3_result_double(context, PyFloat_AsDouble(py_val));
} else if (PyUnicode_Check(py_val)) {
const char *str = PyUnicode_AsUTF8(py_val);
if (str == NULL)
Py_ssize_t sz;
const char *str = PyUnicode_AsUTF8AndSize(py_val, &sz);
if (str == NULL) {
return -1;
sqlite3_result_text(context, str, -1, SQLITE_TRANSIENT);
}
if (sz > INT_MAX) {
sz = -1; // Let SQLite compute string length
}
sqlite3_result_text(context, str, (int)sz, SQLITE_TRANSIENT);
} else if (PyObject_CheckBuffer(py_val)) {
Py_buffer view;
if (PyObject_GetBuffer(py_val, &view, PyBUF_SIMPLE) != 0) {
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