/* ECMA-262 3rd Edition 15.4.4.5 */
static HRESULT Array_join(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, unsigned argc, jsval_t *argv,
jsval_t *r)
{
jsdisp_t *jsthis;
DWORD length;
HRESULT hres;
TRACE("\n");
hres = get_length(ctx, vthis, &jsthis, &length);
if(FAILED(hres))
return hres;
if(argc) {
const WCHAR *sep;
jsstr_t *sep_str;
hres = to_flat_string(ctx, argv[0], &sep_str, &sep);
if(FAILED(hres))
return hres;
hres = array_join(ctx, jsthis, length, sep, r);
jsstr_release(sep_str);
}else {
hres = array_join(ctx, jsthis, length, default_separatorW, r);
}
return hres;
}
/* ECMA-262 3rd Edition 15.4.4.5 */
static HRESULT Array_join(script_ctx_t *ctx, vdisp_t *vthis, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei)
{
jsdisp_t *jsthis;
DWORD length;
HRESULT hres;
TRACE("\n");
hres = get_length(ctx, vthis, ei, &jsthis, &length);
if(FAILED(hres))
return hres;
if(arg_cnt(dp)) {
BSTR sep;
hres = to_string(ctx, get_arg(dp,0), ei, &sep);
if(FAILED(hres))
return hres;
hres = array_join(ctx, jsthis, length, sep, retv, ei);
SysFreeString(sep);
}else {
hres = array_join(ctx, jsthis, length, default_separatorW, retv, ei);
}
return hres;
}
static HRESULT Array_get_value(script_ctx_t *ctx, jsdisp_t *jsthis, jsval_t *r)
{
ArrayInstance *array = array_from_jsdisp(jsthis);
TRACE("\n");
return array_join(ctx, &array->dispex, array->length, default_separatorW, r);
}
/*
* ncurses_binding_set()
*
* it sets some sequence to the given key
*/
void ncurses_binding_set(int quiet, const char *key, const char *sequence)
{
struct binding *d;
binding_added_t *b;
struct binding *binding_orginal = NULL;
char *joined = NULL;
int count = 0;
for (d = bindings; d; d = d->next) {
if (!xstrcasecmp(key, d->key)) {
binding_orginal = d;
break;
}
}
if (!binding_orginal) {
printq("bind_doesnt_exist", key);
return;
}
if (!sequence) {
char **chars = NULL;
char ch;
printq("bind_press_key");
nodelay(input, FALSE);
while ((ch = wgetch(input)) != ERR) {
array_add(&chars, xstrdup(itoa(ch)));
nodelay(input, TRUE);
count++;
}
joined = array_join(chars, (" "));
array_free(chars);
} else
joined = xstrdup(sequence);
for (b = bindings_added; b; b = b->next) {
if (!xstrcasecmp(b->sequence, joined)) {
b->binding = binding_orginal;
xfree(joined);
goto end;
}
}
b = xmalloc(sizeof(binding_added_t));
b->sequence = joined;
b->binding = binding_orginal;
LIST_ADD2(&bindings_added, b);
end:
if (!in_autoexec)
config_changed = 1;
printq("bind_added");
if (count > bindings_added_max)
bindings_added_max = count;
}
/* ECMA-262 3rd Edition 15.4.4.2 */
static HRESULT Array_toString(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei)
{
ArrayInstance *array;
TRACE("\n");
array = array_this(jsthis);
if(!array)
return throw_type_error(ctx, ei, JS_E_ARRAY_EXPECTED, NULL);
return array_join(ctx, &array->dispex, array->length, default_separatorW, retv, ei);
}
/* ECMA-262 3rd Edition 15.4.4.2 */
static HRESULT Array_toString(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
jsval_t *r)
{
ArrayInstance *array;
TRACE("\n");
array = array_this(jsthis);
if(!array)
return throw_type_error(ctx, JS_E_ARRAY_EXPECTED, NULL);
return array_join(ctx, &array->dispex, array->length, default_separatorW, r);
}
static HRESULT Array_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei)
{
TRACE("\n");
switch(flags) {
case INVOKE_FUNC:
return throw_type_error(ctx, ei, JS_E_FUNCTION_EXPECTED, NULL);
case INVOKE_PROPERTYGET:
return array_join(ctx, jsthis->u.jsdisp, array_from_vdisp(jsthis)->length, default_separatorW, retv, ei);
default:
FIXME("unimplemented flags %x\n", flags);
return E_NOTIMPL;
}
return S_OK;
}
static HRESULT Array_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
jsval_t *r)
{
TRACE("\n");
switch(flags) {
case INVOKE_FUNC:
return throw_type_error(ctx, JS_E_FUNCTION_EXPECTED, NULL);
case INVOKE_PROPERTYGET:
return array_join(ctx, jsthis->u.jsdisp, array_from_vdisp(jsthis)->length, default_separatorW, r);
default:
FIXME("unimplemented flags %x\n", flags);
return E_NOTIMPL;
}
return S_OK;
}
int make_and_send(struct sr_instance* sr, char * interface, uint32_t dstIP, uint8_t* payld, unsigned int len, uint8_t proto) {
assert(payld);
assert(sr);
assert(interface);
#if 0
printf("********* at %s Payload is 0x ", __func__);
int i ;
for(i = 0; i < len; i++) {
printf("%hhx ", payld[i]);
}
printf("\n");
#endif
/* doing some testing
*/
printf("\n*************************\n\n");
print_ip(dstIP);
printf("\n\n**************************\n\n");
char* test;
test = longest_prefix(sr, ntohl(dstIP));
printf("\n\n**************************\n");
struct sr_vns_if* myIntf = sr_get_interface(sr, interface);
struct ip* ipHdr = (struct ip*) malloc_or_die(20);
int rtn;
struct in_addr src;
struct in_addr dst;
src.s_addr = myIntf->ip;
dst.s_addr = dstIP;
//fill in ip hdr
//How do we set version and hl?
ipHdr->ip_hl = 5;
ipHdr->ip_v = 4;
ipHdr->ip_tos = 0x0;
ipHdr->ip_len = htons(len + 20);
ipHdr->ip_id = htons(1638);
ipHdr->ip_off = 0x0;
ipHdr->ip_ttl = 64;
ipHdr->ip_p = proto; // probably always IPPROTO_ICMP for the router
ipHdr->ip_sum = 0x0;
ipHdr->ip_src = src;
ipHdr->ip_dst = dst;
uint16_t check = cksum((uint8_t*)ipHdr, 20);
ipHdr->ip_sum = check;
//Then we make an ethernet payload
// Tracking back from sr_arp.c:298
// we don't have the valid ICMP here even so go back further
uint8_t* packet = (uint8_t*) malloc_or_die(len + 20);
packet = array_join(ipHdr, payld, 20, len);
#if 0
printf("\n");
for(i = 0; i < len + 20; i++) {
printf("%hhx ", packet[i]);
}
//printf("\n************* %s ******************\n", __func__);
#endif
rtn = arp_lookup(sr, interface, packet, dstIP, (len + 20));
return rtn;
}
int create_ICMP_pkt(struct sr_instance* sr, char* interface, uint32_t dstIP, uint8_t type, uint8_t code, uint16_t field1, uint16_t field2, uint8_t* data, unsigned int datalen) {
assert(data);
assert(sr);
assert(interface);
#if 0
printf("********* at %s Payload is 0x ", __func__);
int i;
for(i = 0; i < datalen; i++) {
printf("%x", data[i]);
}
printf("\n");
#endif
int len, rtn;
switch (type) {
case 3:
case 11:
len = 8 + sizeof(struct ip) + 8; //8byte ICMP hdr, 20byte IP hdr, 8byte IP data
break; //for now to keep it easy to follow code
case 0:
len = sizeof(struct sr_icmp_hdr) + datalen; // 8byte ICMP hdr, data as in echo rqst allowing for ID and sequence in data
break;
default:
len = 8; //this might not be helpful...
}
//printf("******** We're assigning %d bytes of memory\n", len);
struct sr_icmp_hdr* packet = (struct sr_icmp_hdr*) malloc_or_die(sizeof(struct sr_icmp_hdr));
// now they all get some std entries
packet->type = type;
packet->code = code;
packet->checksum = 0x0; // needs to be 0'ed before calculation
packet->field1 = field1;
packet->field2 = field2;
//and now we fill the other entries as appropriate
// printf("********* at %s After conversion to packet \n ", __func__);
// print_icmp_pkt(packet);
//finally we can add a checksum
//uint16_t check = cksum((uint8_t*)packet, len); // The problem is I can't do this cast apparently
//printf("\n\n********* at %s transferring 0x \n", __func__);
//print_icmp_pkt(packet);
uint8_t* Pkt = array_join(packet, data, sizeof(struct sr_icmp_hdr), datalen);
//memcpy(Pkt, packet, len);
uint16_t check = cksum(Pkt, len);
// printf("\n\n &&&&&&&&&& the checksum is calculated as %hu\n", check);
((struct sr_icmp_hdr*)Pkt)->checksum = check;
// Pkt = icmp_to_raw(packet, len);
//so we still have the issue of how to insert the checksum
rtn = make_and_send(sr, interface, dstIP, Pkt, len, IPPROTO_ICMP);
if(rtn == 2) {
printf("************* ICMP pkt, ARP request sent\n");
return 2;
}
else if (rtn == 1) {
printf("************** ICMP packet, we had an ARP entry\n");
return 2;
}
else {
return 0;
}
return 0;
}
