busybox/networking/udhcp/dhcpc.h
Denys Vlasenko 949e9621d1 udhcpc: get rid of client_data.fqdn field
function                                             old     new   delta
attach_option                                        253     276     +23
udhcpc_main                                         2582    2588      +6
udhcpc6_main                                        2579    2571      -8
add_client_options                                   175     158     -17
udhcp_insert_new_option                              169     138     -31
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/3 up/down: 29/-56)            Total: -27 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-02 15:51:50 +02:00

44 lines
1.3 KiB
C

/* vi: set sw=4 ts=4: */
/*
* Licensed under GPLv2, see file LICENSE in this source tree.
*/
#ifndef UDHCP_DHCPC_H
#define UDHCP_DHCPC_H 1
PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
struct client_data_t {
uint8_t client_mac[6]; /* Our mac address */
IF_FEATURE_UDHCP_PORT(uint16_t port;)
int ifindex; /* Index number of the interface to use */
uint8_t opt_mask[256 / 8]; /* Bitmask of options to send (-O option) */
// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ TODO: DHCPv6 has 16-bit option numbers
const char *interface; /* The name of the interface to use */
char *pidfile; /* Optionally store the process ID */
const char *script; /* User script to run at dhcp events */
struct option_set *options; /* list of DHCP options to send to server */
llist_t *envp; /* list of DHCP options used for env vars */
unsigned first_secs;
unsigned last_secs;
int sockfd;
smallint listen_mode;
smallint state;
} FIX_ALIASING;
/* server_config sits in 1st half of bb_common_bufsiz1 */
#define client_data (*(struct client_data_t*)(&bb_common_bufsiz1[COMMON_BUFSIZE / 2]))
#if ENABLE_FEATURE_UDHCP_PORT
#define CLIENT_PORT (client_data.port)
#define CLIENT_PORT6 (client_data.port)
#else
#define CLIENT_PORT 68
#define CLIENT_PORT6 546
#endif
POP_SAVED_FUNCTION_VISIBILITY
#endif