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ctdb-client: Do not try to allocate 0 sized record

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BUG: https://bugzilla.samba.org/show_bug.cgi?id=13356

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
This commit is contained in:
Amitay Isaacs 2018-03-19 13:38:28 +11:00 committed by Amitay Isaacs
parent 2610a3f2f7
commit 92a68af1a8
1 changed files with 12 additions and 7 deletions
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19
ctdb/client/client_db.c
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@ -1413,14 +1413,19 @@ struct ctdb_record_handle *ctdb_fetch_lock_recv(struct tevent_req *req,
offset = ctdb_ltdb_header_len(&h->header);
data->dsize = h->data.dsize - offset;
data->dptr = talloc_memdup(mem_ctx, h->data.dptr + offset,
data->dsize);
if (data->dptr == NULL) {
TALLOC_FREE(state->h);
if (perr != NULL) {
*perr = ENOMEM;
if (data->dsize == 0) {
data->dptr = NULL;
} else {
data->dptr = talloc_memdup(mem_ctx,
h->data.dptr + offset,
data->dsize);
if (data->dptr == NULL) {
TALLOC_FREE(state->h);
if (perr != NULL) {
*perr = ENOMEM;
}
return NULL;
}
return NULL;
}
}