5218 posix definition of NULL
correct unistd.h and iso/stddef_iso.h
update gate source affected

*** 730,740 ****
          {SADB_X_IDENTTYPE_ADDR_RANGE,   "ipv4-range"},
          {SADB_X_IDENTTYPE_ADDR_RANGE,   "ipv6-range"},
          {SADB_X_IDENTTYPE_ADDR_RANGE,   "rangev4"},
          {SADB_X_IDENTTYPE_ADDR_RANGE,   "rangev6"},
          {SADB_X_IDENTTYPE_KEY_ID,       "keyid"},
!         {NULL,  0}
  };
  
  static int
  parse_idtype(char *type, uint16_t *idnum)
  {
--- 730,740 ----
          {SADB_X_IDENTTYPE_ADDR_RANGE,   "ipv4-range"},
          {SADB_X_IDENTTYPE_ADDR_RANGE,   "ipv6-range"},
          {SADB_X_IDENTTYPE_ADDR_RANGE,   "rangev4"},
          {SADB_X_IDENTTYPE_ADDR_RANGE,   "rangev6"},
          {SADB_X_IDENTTYPE_KEY_ID,       "keyid"},
!         {0, NULL}
  };
  
  static int
  parse_idtype(char *type, uint16_t *idnum)
  {
*** 898,908 ****
          {PSFLD_LOCIDTYPE,       "localidtype"},
          {PSFLD_REMID,           "remoteid"},
          {PSFLD_REMIDTYPE,       "remoteidtype"},
          {PSFLD_MODE,            "ike_mode"},
          {PSFLD_KEY,             "key"},
!         {NULL,  0}
  };
  
  static int
  parse_psfldid(char *type, uint16_t *idnum)
  {
--- 898,908 ----
          {PSFLD_LOCIDTYPE,       "localidtype"},
          {PSFLD_REMID,           "remoteid"},
          {PSFLD_REMIDTYPE,       "remoteidtype"},
          {PSFLD_MODE,            "ike_mode"},
          {PSFLD_KEY,             "key"},
!         {0, NULL}
  };
  
  static int
  parse_psfldid(char *type, uint16_t *idnum)
  {
*** 924,934 ****
  
  static keywdtab_t       ikemodes[] = {
          {IKE_XCHG_IDENTITY_PROTECT,     "main"},
          {IKE_XCHG_AGGRESSIVE,           "aggressive"},
          {IKE_XCHG_IP_AND_AGGR,          "both"},
!         {NULL,  0}
  };
  
  static int
  parse_ikmtype(char *mode, uint16_t *modenum)
  {
--- 924,934 ----
  
  static keywdtab_t       ikemodes[] = {
          {IKE_XCHG_IDENTITY_PROTECT,     "main"},
          {IKE_XCHG_AGGRESSIVE,           "aggressive"},
          {IKE_XCHG_IP_AND_AGGR,          "both"},
!         {0, NULL}
  };
  
  static int
  parse_ikmtype(char *mode, uint16_t *modenum)
  {
*** 3343,3353 ****
          case IKE_SVC_DUMP_GROUPS:
          case IKE_SVC_DUMP_ENCRALGS:
          case IKE_SVC_DUMP_AUTHALGS:
          case IKE_SVC_DUMP_PS:
          case IKE_SVC_DUMP_CERTCACHE:
!                 if (argc != NULL) {
                          print_dump_help();
                          break;
                  }
                  do_dump(cmd);
                  break;
--- 3343,3353 ----
          case IKE_SVC_DUMP_GROUPS:
          case IKE_SVC_DUMP_ENCRALGS:
          case IKE_SVC_DUMP_AUTHALGS:
          case IKE_SVC_DUMP_PS:
          case IKE_SVC_DUMP_CERTCACHE:
!                 if (argc != 0) {
                          print_dump_help();
                          break;
                  }
                  do_dump(cmd);
                  break;