dhcpd: remember and record hostnames; optimize get_option

dumpleases: show hostnames

function                                             old     new   delta
add_lease                                            230     292     +62
send_offer                                           403     421     +18
send_ACK                                             232     249     +17
read_leases                                          249     258      +9
dumpleases_main                                      604     609      +5
nobody_responds_to_arp                                84      86      +2
udhcp_end_option                                      32      30      -2
udhcp_get_option                                     222     171     -51
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 6/2 up/down: 113/-53)            Total: 60 bytes

1 files changed, 2 insertions, 2 deletions

diff --git a/networking/udhcp/script.c b/networking/udhcp/script.c
index 5d42a45db..3029b1367 100644
--- a/networking/udhcp/script.c
+++ b/networking/udhcp/script.c
@@ -135,7 +135,7 @@ static char **fill_envp(struct dhcpMessage *packet)
         char **envp, **curr;
         const char *opt_name;
         uint8_t *temp;
-        char over = 0;
+        uint8_t over = 0;
 
         if (packet) {
                 for (i = 0; dhcp_options[i].code; i++) {
@@ -147,7 +147,7 @@ static char **fill_envp(struct dhcpMessage *packet)
                 }
                 if (packet->siaddr)
                         num_options++;
-                temp = get_option(packet, DHCP_OPTION_OVER);
+                temp = get_option(packet, DHCP_OPTION_OVERLOAD);
                 if (temp)
                         over = *temp;
                 if (!(over & FILE_FIELD) && packet->file[0])