Added 'shell' command to LaikaShell

- another major refactoring

shell/include/sclient.h

@@ -11,6 +11,7 @@ typedef struct sShell_client {
     uint8_t priv[crypto_kx_SECRETKEYBYTES], pub[crypto_kx_PUBLICKEYBYTES];
     struct sLaika_pollList pList;
     struct sLaika_peer *peer;
+    tShell_peer *openShell; /* if not NULL, shell is open on peer */
     struct hashmap *peers;
     tShell_peer **peerTbl;
     int peerTblCount;
@@ -28,6 +29,10 @@ tShell_peer *shellC_getPeerByPub(tShell_client *client, uint8_t *pub, int *id);
 int shellC_addPeer(tShell_client *client, tShell_peer *peer); /* returns new peer id */
 void shellC_rmvPeer(tShell_client *client, tShell_peer *peer, int id);
 
+void shellC_openShell(tShell_client *client, tShell_peer *peer);
+void shellC_closeShell(tShell_client *client);
+void shellC_sendDataShell(tShell_client *client, uint8_t *data, size_t sz);
+
 void shellC_printInfo(tShell_peer *peer);
 
 #endif

shell/include/sterm.h

@@ -17,6 +17,8 @@ void shellT_printf(const char *format, ...);
 
 /* waits for input for timeout (in ms). returns true if input is ready to be read, false if no events */
 bool shellT_waitForInput(int timeout);
+int shellT_readRawInput(uint8_t *buf, size_t max);
+void shellT_writeRawOutput(uint8_t *buf, size_t sz);
 char shellT_getch(void);
 int shellT_kbget(void);
 void shellT_printPrompt(void);