dhcp: heed TODO item - divorced options from their string descriptions
code shrink while at it.
function old new delta
dhcp_option_strings - 258 +258
udhcp_run_script 1135 1174 +39
dhcp_option_lengths - 11 +11
udhcp_add_simple_option 93 92 -1
packet_num 4 - -4
read_opt 746 739 -7
udhcp_option_lengths 11 - -11
udhcpc_main 2590 2494 -96
dhcp_options 490 70 -420
------------------------------------------------------------------------------
(add/remove: 2/2 grow/shrink: 1/4 up/down: 308/-539) Total: -231 bytes
text data bss dec hex filename
775309 929 9100 785338 bfbba busybox_old
775098 929 9084 785111 bfad7 busybox_unstripped
diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c
index 6ade1ee..d8077f7 100644
--- a/networking/udhcp/dhcpc.c
+++ b/networking/udhcp/dhcpc.c
@@ -19,15 +19,9 @@
#include "options.h"
-/* Something is definitely wrong here. IPv4 addresses
- * in variables of type long?? BTW, we use inet_ntoa()
- * in the code. Manpage says that struct in_addr has a member of type long (!)
- * which holds IPv4 address, and the struct is passed by value (!!)
- */
static int timeout; /* = 0. Must be signed */
static uint32_t requested_ip; /* = 0 */
static uint32_t server_addr;
-static int packet_num; /* = 0 */
static int sockfd = -1;
#define LISTEN_NONE 0
@@ -74,12 +68,6 @@
case INIT_SELECTING:
break;
}
-
- /* start things over */
- packet_num = 0;
-
- /* Kill any timeouts because the user wants this to hurry along */
- timeout = 0;
}
@@ -153,8 +141,11 @@
int discover_retries = 3;
uint32_t xid = 0;
uint32_t lease_seconds = 0; /* can be given as 32-bit quantity */
- unsigned t1 = 0, t2 = 0; /* what a wonderful names */
- unsigned timestamp_got_lease = 0; /* for gcc */
+ int packet_num;
+ /* t1, t2... what a wonderful names... */
+ unsigned t1 = t1; /* for gcc */
+ unsigned t2 = t2;
+ unsigned timestamp_got_lease = timestamp_got_lease;
unsigned opt;
int max_fd;
int retval;
@@ -315,6 +306,7 @@
state = INIT_SELECTING;
udhcp_run_script(NULL, "deconfig");
change_listen_mode(LISTEN_RAW);
+ packet_num = 0;
/* Main event loop. select() waits on signal pipe and possibly
* on sockfd.
@@ -585,6 +577,10 @@
switch (signo) {
case SIGUSR1:
perform_renew();
+ /* start things over */
+ packet_num = 0;
+ /* Kill any timeouts because the user wants this to hurry along */
+ timeout = 0;
break;
case SIGUSR2:
perform_release();