Handle NULL return values in PostgreSQL

diff --git a/src/modules/rlm_sql/drivers/rlm_sql_postgresql/rlm_sql_postgresql.c b/src/modules/rlm_sql/drivers/rlm_sql_postgresql/rlm_sql_postgresql.c
index c71c00e4688da84972c580d4dee1b22258e8559a..b59359faa272d497d3d477027479742ef2a80c76 100644 (file)
--- a/src/modules/rlm_sql/drivers/rlm_sql_postgresql/rlm_sql_postgresql.c
+++ b/src/modules/rlm_sql/drivers/rlm_sql_postgresql/rlm_sql_postgresql.c
@@ -575,6 +575,7 @@ static unlang_action_t sql_fetch_row(rlm_rcode_t *p_result, UNUSED int *priority
        if ((PQntuples(conn->result) > 0) && (records > 0)) {
                conn->row = talloc_zero_array(conn, char *, records + 1);
                for (i = 0; i < records; i++) {
+                       if (PQgetisnull(conn->result, conn->cur_row, i)) continue;
                        len = PQgetlength(conn->result, conn->cur_row, i);
                        conn->row[i] = talloc_array(conn->row, char, len + 1);
                        strlcpy(conn->row[i], PQgetvalue(conn->result, conn->cur_row, i), len + 1);