833 static uint8_t *dhcpc_addclientid(uint8_t *optptr)  in dhcpc_addclientid()  argument
835   *optptr++ = DHCP_OPTION_CLIENTID;  in dhcpc_addclientid()
836   *optptr++ = 7;  in dhcpc_addclientid()
837   *optptr++ = 1;  in dhcpc_addclientid()
838   memcpy(optptr, &state->macaddr, 6);  in dhcpc_addclientid()
839   return optptr + 6;  in dhcpc_addclientid()
843 static uint8_t *dhcpc_addmsgtype(uint8_t *optptr, uint8_t type)  in dhcpc_addmsgtype()  argument
845   *optptr++ = DHCP_OPTION_MSG_TYPE;  in dhcpc_addmsgtype()
846   *optptr++ = 1;  in dhcpc_addmsgtype()
847   *optptr++ = type;  in dhcpc_addmsgtype()
848   return optptr;  in dhcpc_addmsgtype()
852 static uint8_t *dhcpc_addmaxsize(uint8_t *optptr, uint16_t size)  in dhcpc_addmaxsize()  argument
854   *optptr++ = DHCP_OPTION_MAX_SIZE;  in dhcpc_addmaxsize()
855   *optptr++ = 2;  in dhcpc_addmaxsize()
856   memcpy(optptr, &size, 2);  in dhcpc_addmaxsize()
857   return optptr + 2;  in dhcpc_addmaxsize()
860 static uint8_t *dhcpc_addstropt(uint8_t *optptr, uint8_t opcode, char* str, int len)  in dhcpc_addstropt()  argument
862   *optptr++ = opcode;  in dhcpc_addstropt()
863   *optptr++ = len;  in dhcpc_addstropt()
864   memcpy(optptr, str, len);  in dhcpc_addstropt()
865   return optptr + len;  in dhcpc_addstropt()
869 static uint8_t *dhcpc_addserverid(struct in_addr *serverid, uint8_t *optptr)  in dhcpc_addserverid()  argument
871   *optptr++ = DHCP_OPTION_SERVER_ID;  in dhcpc_addserverid()
872   *optptr++ = 4;  in dhcpc_addserverid()
873   memcpy(optptr, &serverid->s_addr, 4);  in dhcpc_addserverid()
874   return optptr + 4;  in dhcpc_addserverid()
878 static uint8_t *dhcpc_addreqipaddr(struct in_addr *ipaddr, uint8_t *optptr)  in dhcpc_addreqipaddr()  argument
880   *optptr++ = DHCP_OPTION_REQ_IPADDR;  in dhcpc_addreqipaddr()
881   *optptr++ = 4;  in dhcpc_addreqipaddr()
882   memcpy(optptr, &ipaddr->s_addr, 4);  in dhcpc_addreqipaddr()
883   return optptr + 4;  in dhcpc_addreqipaddr()
887 static uint8_t *dhcpc_addfdnname(uint8_t *optptr, char *hname)  in dhcpc_addfdnname()  argument
891   *optptr++ = DHCP_OPTION_FQDN;  in dhcpc_addfdnname()
892   *optptr++ = size + 3;  in dhcpc_addfdnname()
893   *optptr++ = 0x1;  //flags  in dhcpc_addfdnname()
894   optptr += 2;      // two blank bytes  in dhcpc_addfdnname()
895   strcpy((char*)optptr, hname); // name  in dhcpc_addfdnname()
897   return optptr + size;  in dhcpc_addfdnname()
901 static uint8_t *dhcpc_addreqoptions(uint8_t *optptr)  in dhcpc_addreqoptions()  argument
905   *optptr++ = DHCP_OPTION_REQ_LIST;  in dhcpc_addreqoptions()
906   len = optptr;  in dhcpc_addreqoptions()
908   optptr++;  in dhcpc_addreqoptions()
912     *optptr++ = DHCP_OPTION_SUBNET_MASK;  in dhcpc_addreqoptions()
913     *optptr++ = DHCP_OPTION_ROUTER;  in dhcpc_addreqoptions()
914     *optptr++ = DHCP_OPTION_DNS_SERVER;  in dhcpc_addreqoptions()
915     *optptr++ = DHCP_OPTION_BROADCAST;  in dhcpc_addreqoptions()
918     memcpy(optptr++, raw_opt, raw_optcount);  in dhcpc_addreqoptions()
921   return optptr;  in dhcpc_addreqoptions()
924 static uint8_t *dhcpc_addend(uint8_t *optptr)  in dhcpc_addend()  argument
926   *optptr++ = DHCP_OPTION_END;  in dhcpc_addend()
927   return optptr;  in dhcpc_addend()
931 static uint8_t* set_xopt(uint8_t *optptr)  in set_xopt()  argument
937     *optptr++ = (uint8_t) (options_list[count].code & 0x00FF);  in set_xopt()
938     *optptr++ = (uint8_t) options_list[count].len;  in set_xopt()
939     memcpy(optptr, options_list[count].val, options_list[count].len);  in set_xopt()
940     optptr += options_list[count].len;  in set_xopt()
942   return optptr;  in set_xopt()
1056 static uint8_t dhcpc_parseoptions(dhcpc_result_t *presult, uint8_t *optptr)  in dhcpc_parseoptions()  argument
1089   while (*optptr != DHCP_OPTION_END) {  in dhcpc_parseoptions()
1090     if (*optptr == DHCP_OPTION_PADDING) {  in dhcpc_parseoptions()
1091       optptr++;  in dhcpc_parseoptions()
1094     if (*optptr == DHCP_OPTION_OVERLOAD) {  in dhcpc_parseoptions()
1095       overloaded = optptr[2];  in dhcpc_parseoptions()
1096       optptr += optptr[1] + 2;  in dhcpc_parseoptions()
1100       if ((msgopt_list[count].code & 0X00FF) == *optptr) {  in dhcpc_parseoptions()
1107       memcpy(&convtmp, &optptr[2], sizeof(uint32_t));  in dhcpc_parseoptions()
1114       memcpy(&convtmp, &optptr[2], sizeof(uint16_t));  in dhcpc_parseoptions()
1121       memcpy(&convtmp, &optptr[2], sizeof(uint8_t));  in dhcpc_parseoptions()
1127       memcpy(&convtmp, &optptr[2], sizeof(uint32_t));  in dhcpc_parseoptions()
1134       sprintf(toybuf, "%.*s", optptr[1], &optptr[2]);  in dhcpc_parseoptions()
1139       optlen = optptr[1];  in dhcpc_parseoptions()
1142         memcpy(&convtmp, &optptr[2], sizeof(uint32_t));  in dhcpc_parseoptions()
1157       options = &optptr[2];  in dhcpc_parseoptions()
1158       optlen = optptr[1];  in dhcpc_parseoptions()
1188     optptr += optptr[1] + 2;  in dhcpc_parseoptions()
1190   if ((overloaded == 1) || (overloaded == 3)) dhcpc_parseoptions(presult, optptr);  in dhcpc_parseoptions()
1191   if ((overloaded == 2) || (overloaded == 3)) dhcpc_parseoptions(presult, optptr);  in dhcpc_parseoptions()