[PATCHv2] net: add support to parse the NIS domain for the dhcp options

[Charles Hardin <ckhardin@gmail.com>]

There is code in the bootp parsing for NIS domain and add the
same support for the dhcp options as well. This allows the same
usage of the data when the dhcp command is used in the boot
command.

Signed-off-by: Charles Hardin <ckhardin@gmail.com>
---
 net/bootp.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/net/bootp.c b/net/bootp.c
index 6800290963..c15472f5d3 100644
--- a/net/bootp.c
+++ b/net/bootp.c
@@ -883,6 +883,14 @@ static void dhcp_process_options(uchar *popt, uchar *end)
 			break;
 		case 28:	/* Ignore Broadcast Address Option */
 			break;
+		case 40:	/* NIS Domain name */
+			if (net_nis_domain[0] == 0) {
+				size = truncate_sz("NIS Domain Name",
+					sizeof(net_nis_domain), size);
+				memcpy(&net_nis_domain, popt + 2, size);
+				net_nis_domain[size] = 0;
+			}
+			break;
 #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER)
 		case 42:	/* NTP server IP */
 			net_copy_ip(&net_ntp_server, (popt + 2));
-- 
2.39.3 (Apple Git-146)