udhcp: code shrink; disable time and log server options

function                                             old     new   delta
add_server_options                                     -     100    +100
udhcp_add_simple_option                               92      90      -2
nobody_responds_to_arp                                88      85      -3
dhcp_options                                          66      62      -4
udhcp_add_option_string                              104      94     -10
udhcp_run_script                                     665     654     -11
dhcp_option_strings                                  203     188     -15
static.blank_chaddr                                   16       -     -16
send_ACK                                             211     180     -31
add_bootp_options                                     61       -     -61
udhcpd_main                                         1925    1846     -79
------------------------------------------------------------------------------
(add/remove: 1/2 grow/shrink: 0/8 up/down: 100/-232)         Total: -132 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 7 insertions, 6 deletions

diff --git a/examples/udhcp/udhcpd.conf b/examples/udhcp/udhcpd.conf
index 0ad982b55..a27a05357 100644
--- a/examples/udhcp/udhcpd.conf
+++ b/examples/udhcp/udhcpd.conf
@@ -77,7 +77,7 @@ option	lease	864000		# 10 days
 #opt domain     STRING      - client's domain name
 #opt search     STRING_LIST - search domains
 #opt nisdomain  STRING
-#opt timezone   NUM
+#opt timezone   NUM    - (localtime - UTC_time) in seconds. signed
 #opt tftp       STRING - TFTP server name
 #opt bootfile   STRING - file (kernel image) to load for booting
 #opt bootsize   NUM    - size of that file
@@ -89,10 +89,11 @@ option	lease	864000		# 10 days
 #opt dns        IP_LIST
 #opt wins       IP_LIST
 #opt nissrv     IP_LIST
-#opt namesrv    IP_LIST - obsolete, disabled
-#opt logsrv     IP_LIST
-#opt cookiesrv  IP_LIST - rarely (never?) used, disabled
+#opt ntpsrv     IP_LIST
 #opt lprsrv     IP_LIST
 #opt swapsrv    IP
-#opt timesrv    IP_LIST
-#opt ntpsrv     IP_LIST
+# Obsolete options, no longer supported
+#opt logsrv     IP_LIST - 704/UDP log server (not syslog!)
+#opt namesrv    IP_LIST - IEN 116 name server, obsolete (August 1979!!!)
+#opt cookiesrv  IP_LIST - RFC 865 "quote of the day" server, rarely (never?) used
+#opt timesrv    IP_LIST - RFC 868 time server, rarely (never?) used