smol

protocol.md

@@ -10,7 +10,7 @@ All references to the 'byte' in this document refers to individual 8-bit octets,
 
 Because the body of the packet is a sequence of many different regions of byte data that is not delimited, it is necessary for the header of the packet to determine boundaries for the regions of data.
 
-* The first two bytes will always be 0xB0 and 0X0B. If this is not set properly, the endpoint must close the connection.
+* The first two bytes will always be 0xB0 and 0x0B. If this is not set properly, the endpoint must close the connection.
 * The next four bytes are the total length of the entire packet, including the whole header.
 * The seventh byte is the packet id, the meanings of which are defined in the [_Packet IDs_](#packet-ids) section.
 * The eighth byte is the number of byte regions in the packet.
@@ -472,4 +472,4 @@ The indexed list below indicates which byte (first byte being the MSB) contains
 5. Minute quantifier. Ranges from 0 to 59.
 6. Second quantifier. Ranges from 0 to 59.
 
-In the event that an endpoint cannot evaluate a date required by the protocol as a result of some error, an error sockstamp will be sent in its place. An error sockstamp takes the form of zeroes in all bits. If an endpoint receives a sockstamp where the year quantifier is zero but any other quantifiers are nonzero, there is a communication error and the endpoint must close the connection.
+In the event that an endpoint cannot evaluate a date required by the protocol as a result of some error, an error sockstamp will be sent in its place. An error sockstamp takes the form of zeroes in all bits. If an endpoint receives a sockstamp where the year quantifier is zero but any other quantifiers are nonzero, there is a communication error and the endpoint must close the connection.

server/src/sock/intrasock.hpp

@@ -1,12 +1,23 @@
 #ifndef SOSC_INTSOCK_H
 #define SOSC_INTSOCK_H
 
+#include "tcpsock.hpp"
+
 namespace sosc {
 class IntraConnection {
 public:
+    int Receive(Packet* packet, bool block = false);
+    bool Send(const Packet& packet);
     
+    void Close();
+    ~IntraConnection();
 private:
+    IntraConnection(TcpClient client);
     
+    TcpClient client;
+    std::string buffer;
+    
+    friend class IntraServer;
 };
 
 class IntraServer {

server/src/sock/packet.cpp

@@ -22,33 +22,47 @@ int sosc::Packet::Parse(const std::string& data, std::string* extra) {
     
     this->id = data[6];
     std::vector<uint32_t> region_lengths;
-    int region_count = data[7], ptr = 8;
+    uint32_t region_count = data[7], 
+        ptr = 8, body_length = 0;
     for(int i = 0; i < region_count; ++i) {
         if(ptr >= length)
             return PCK_ERR;
         
+        uint32_t region_length;
         switch(raw[ptr]) {
             default:
-                region_lengths.push_back(raw[ptr]);
+                region_length = raw[ptr];
                 break;
             case 254:
                 if(ptr + 2 >= length)
                     return PCK_ERR;
                 
-                region_lengths.push_back(
-                    net::ntohv<uint16_t>(data, ptr + 1)
-                );
+                region_length = net::ntohv<uint16_t>(data, ptr + 1);
                 break;
             case 255:
                 if(ptr + 4 >= length)
                     return PCK_ERR;
                 
-                region_lengths.push_back(
-                    net::ntohv<uint32_t>(data, ptr + 1);
-                );
+                region_length = net::ntohv<uint32_t>(data, ptr + 1);
                 break;
         }
+        
+        region_lengths.push_back(region_length);
+        body_length += region_length;
     }
+    
+    if(body_length - ptr != 0)
+        return PCK_ERR;
+    
+    for(int i = 0; i < region_count; ++i) {
+        this->regions[i] = data.substr(ptr, region_lengths[i]);
+        ptr += region_lengths[i];
+    }
+    
+    if(length > expected_length)
+        *extra = data.substr(expected_length);
+    
+    return PCK_OK;
 }
 
 bool sosc::Packet::Check(int region_count, ...) {
@@ -62,6 +76,7 @@ bool sosc::Packet::Check(int region_count, ...) {
         if(length != PCK_ANY && this->regions[i].length() != length)
             return false;
     }
+    va_end(args);
     
     return true;
 }

server/src/sock/packet.hpp

@@ -1,6 +1,7 @@
 #ifndef SOSC_PACKET_H
 #define SOSC_PACKET_H
 
+#include <numeric>
 #include <vector>
 #include <string>
 #include <cstdarg>
@@ -17,6 +18,10 @@
 namespace sosc {
 class Packet {
 public:
+    void Clear();
+    void AddRegion(int index = -1);
+    std::string ToString() const;
+    
     int Parse(const std::string& data, std::string* extra = nullptr);
     bool Check(int region_count, ...);