From: Nick Porter <nick@portercomputing.co.uk>
Date: Mon, 21 Oct 2024 12:53:37 +0000 (+0100)
Subject: Handle NULL return values in PostgreSQL
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f921519c293b51c432dc65d6cb4cf9d9cfb97100;p=thirdparty%2Ffreeradius-server.git

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 c71c00e4688..b59359faa27 100644
--- 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);