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udhcp: fix oversized packet sending (introduced by "slack for bad dhcp servers" options);

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slight optimizations and function renaming

udhcp_send_raw_packet                                  -     391    +391
udhcp_send_kernel_packet                               -     197    +197
udhcp_recv_packet                                      -     134    +134
get_raw_packet                                       353     326     -27
udhcp_get_packet                                     134       -    -134
udhcp_kernel_packet                                  197       -    -197
udhcp_raw_packet                                     391       -    -391
------------------------------------------------------------------------------
(add/remove: 3/3 grow/shrink: 0/1 up/down: 722/-749)          Total: -27 bytes
This commit is contained in:
Denis Vlasenko
2007-12-20 21:11:38 +00:00
parent f77f369ce8
commit fff145dba3
7 changed files with 49 additions and 43 deletions
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10
networking/udhcp/common.h
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@@ -54,14 +54,16 @@ struct BUG_bad_sizeof_struct_udp_dhcp_packet {
[(sizeof(struct udp_dhcp_packet) != 576 + CONFIG_UDHCPC_SLACK_FOR_BUGGY_SERVERS) ? -1 : 1];
};
void udhcp_init_header(struct dhcpMessage *packet, char type);
int udhcp_get_packet(struct dhcpMessage *packet, int fd);
uint16_t udhcp_checksum(void *addr, int count);
int udhcp_raw_packet(struct dhcpMessage *payload,
void udhcp_init_header(struct dhcpMessage *packet, char type);
int udhcp_recv_packet(struct dhcpMessage *packet, int fd);
int udhcp_send_raw_packet(struct dhcpMessage *payload,
uint32_t source_ip, int source_port,
uint32_t dest_ip, int dest_port,
const uint8_t *dest_arp, int ifindex);
int udhcp_kernel_packet(struct dhcpMessage *payload,
int udhcp_send_kernel_packet(struct dhcpMessage *payload,
uint32_t source_ip, int source_port,
uint32_t dest_ip, int dest_port);