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8 changes: 7 additions & 1 deletion ngx_http_auth_ldap_module.c
Original file line number Diff line number Diff line change
Expand Up @@ -1651,7 +1651,13 @@ ngx_http_auth_ldap_connect(ngx_http_auth_ldap_connection_t *c)
ngx_addr_t *addr;
ngx_int_t rc;

addr = &c->server->parsed_url.addrs[ngx_random() % c->server->parsed_url.naddrs];
if ((c == NULL) || (c->server == NULL) || (c->server->parsed_url.addrs == NULL)) {
ngx_log_error(NGX_LOG_ERR, c->log, 0, "http_auth_ldap: Can not connect because addr is null");
return;
} else if (c->server->parsed_url.naddrs == 0)
addr = &c->server->parsed_url.addrs[0];
else
addr = &c->server->parsed_url.addrs[ngx_random() % c->server->parsed_url.naddrs];

ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "http_auth_ldap: Connecting to LDAP server \"%V\".",
&addr->name);
Expand Down