Add error handling to Python API calls in LDAPraise_for_message - #341
Add error handling to Python API calls in LDAPraise_for_message#341encukou wants to merge 1 commit into
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@@ Coverage Diff @@
## master #341 +/- ##
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- Coverage 71.30% 68.29% -3.02%
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Files 50 49 -1
Lines 4796 4861 +65
Branches 802 820 +18
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- Hits 3420 3320 -100
- Misses 1045 1187 +142
- Partials 331 354 +23
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It'll review the PR next week or the week after. Too much C code for a Friday afternoon! |
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| PyErr_SetObject(errobj, info); | ||
| Py_DECREF(info); | ||
| ldap_memvfree((void **)refs); | ||
| PyErr_SetObject(errobj, info); |
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I get a segfault here:
test105_reconnect_restore (Tests.t_ldapobject.Test01_ReconnectLDAPObject) ... make: *** [Makefile:72: valgrind] Segmentation fault (core dumped)
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…_message - Ensure pointers are set to NULL when freed. - Free all non-NULL pointers at the end. - Use goto to jump to the cleanup. Note that Python API sets the current exception on failure. If something else than C API fails, PyErr_NoMemory or PyErr_SetObject is called before returning NULL. I recommend reviewing the diff with whitespace changes hidden (`-w` in Git CLI).
| if (m != NULL) { | ||
| msgid = ldap_msgid(m); | ||
| msgtype = ldap_msgtype(m); | ||
| ldap_parse_result(l, m, &errnum, &matched, &error, &refs, |
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The function call is missing an error check:
Upon success LDAP_SUCCESS is returned. Otherwise the values of the result parameters are undefined.
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Does that mean they should not be freed, like this?
opt_errnum = ldap_parse_result(l, m, &errnum, &matched, &error,
&refs, &serverctrls, 1);
if (opt_errnum != LDAP_SUCCESS) {
// values of the result parameters are undefined; zero them
matched = NULL;
error = NULL;
refs = NULL;
serverctrls = NULL;
errnum = opt_errnum;
}
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Add CPython style error handling to LDAPraise_for_message: ensure pointers are set to NULL when freed, and free all non-NULL pointers at the end. Use goto to jump to the cleanup. (The label is usually called error, which here clashes with a variable name).
Note that Python API sets the current exception on failure. If something else than C API fails, PyErr_NoMemory or PyErr_SetObject is called before returning NULL.
I recommend reviewing the diff with whitespace changes hidden (-w in Git CLI, ?w=1 in GitHub URLs).