Delete node_PREVIEW_DO_NOT_USE_YET.h
xethyrion
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/**
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* An implementation of an IPFS node
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* Copying the go-ipfs-node project
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*/
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#ifndef IPFS_NODE_H
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#define IPFS_NODE_H
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "inttypes.h"
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#include "ipfs/cid/cid.h"
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int debug = 0; // Set to 1 to enable debug mode of this program
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/*====================================================================================
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*
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* Structures
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*
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*===================================================================================*/
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struct Link
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{
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char * name;
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size_t size;
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struct Cid * Lcid;
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};
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struct Node
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{
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unsigned char * data;
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unsigned char * encoded;
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int link_ammount;
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struct Link * links[];
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};
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/*====================================================================================
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*
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* Functions
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*
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*===================================================================================*/
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/*====================================================================================
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* Link Functions
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*===================================================================================*/
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/* Create_Link
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* @Param name: The name of the link (char *)
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* @Param size: Size of the link (size_t)
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* @Param ahash: An Qmhash
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*/
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struct Link Create_Link(char * name, unsigned char * ahash)
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{
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struct Link mylink;
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mylink.name = name;
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int ver = 0;
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size_t lenhash = strlen(ahash)-1;
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ipfs_cid_new(ver, ahash, lenhash*2, CID_PROTOBUF, &mylink.Lcid);
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mylink.size = sizeof(mylink) + mylink.Lcid->hash_length; //Unsure of this
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return mylink;
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}
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/* Free_Link
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* @param L: Free the link you have allocated.
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*/
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void Free_Link(struct Link L)
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{
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ipfs_cid_free(L.Lcid);
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}
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/*====================================================================================
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* Node Functions
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*===================================================================================*/
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//In progress
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void Node_Free(struct Node * mynode)
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{
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if(mynode->link_ammount != 0)
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{
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free(mynode);
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}
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}
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/*N_Create_From_Data
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* @param1: bytes buffer
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* returns a new node with the bytes that you specified, also initializes the ammount of links to 0
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*/
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struct Node * N_Create_From_Data(unsigned char * bytes)
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{
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struct Node * datanode;
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datanode->data = bytes;
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datanode->link_ammount = 0;
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return datanode;
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}
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/* N_Add_Link
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* Adds a link to your node
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* @param mynode: &yournode
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* @param mylink: the CID you want to create a node from
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* @param linksz: sizeof(your cid here)
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* Returns your node with the newly added link
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*/
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struct Node * N_Add_Link(struct Node ** mynode, struct Cid * mylink, size_t linksz)
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{
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struct Node * Nl = *mynode;
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Nl->link_ammount++;
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size_t calculatesize = 0;
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if(Nl->link_ammount != 0)
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{
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for(int i=0; i<Nl->link_ammount-1;i++)
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{
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printf("WTF\n");
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calculatesize = calculatesize + sizeof(Nl->links[i]);
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}
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calculatesize = calculatesize + linksz;
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Nl = (struct Node *) realloc(Nl, sizeof(struct Node) + calculatesize);
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}
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else
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{
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Nl = (struct Node *) malloc(sizeof(struct Node) + linksz);
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}
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Nl->links[Nl->link_ammount-1] = mylink;
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return Nl;
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}
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/*N_Create_From_Link
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* Create a node from a link
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* @param mylink: the link you want to create it from. (struct Cid *)
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* @param linksize: sizeof(the link in mylink) (size_T)
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* Returns a fresh new node with the link you specified. Has to be freed with Node_Free preferably.
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*/
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struct Node * N_Create_From_Link(struct Cid * mylink, size_t linksize)
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{
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struct Node * mynode;
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mynode = (struct Node *) malloc(sizeof(struct Node) + linksize);
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mynode->link_ammount = 0;
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mynode->link_ammount++;
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mynode->links[0] = mylink;
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return mynode;
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}
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//Finished
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/*Node_Resolve_Max_Size
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*Gets the ammount of words that will be returned by Node_Resolve
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*@Param1: The string that will be processed (eg: char * sentence = "foo/bar/bin")
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*Returns either -1 if something went wrong or the ammount of words that would be processed.
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*/
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int Node_Resolve_Max_Size(char * input1)
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{
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if(!input1)
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{
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return -1; // Input is null, therefor nothing can be processed.
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}
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char input[strlen(input1)];
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bzero(input, strlen(input1));
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strcpy(input, input1);
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int num = 0;
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char * tr;
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char * end;
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tr=strtok_r(input,"/",&end);
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for(int i = 0;tr;i++)
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{
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tr=strtok_r(NULL,"/",&end);
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num++;
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}
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return num;
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}
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/*Node_Resolve Basically stores everything in a pointer array eg: char * bla[Max_Words_]
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*@param1: Pointer array(char * foo[x], X=Whatever ammount there is. should be used with the helper function Node_Resolve_Max_Size)
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*@param2: Sentence to gather words/paths from (Eg: char * meh = "foo/bar/bin")
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*@Returns 1 or 0, 0 if something went wrong, 1 if everything went smoothly.
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*/
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int Node_Resolve(char ** result, char * input1)
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{
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if(!input1)
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{
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return 0; // Input is null, therefor nothing can be processed.
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}
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char input[strlen(input1)];
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bzero(input, strlen(input1));
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strcpy(input, input1);
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char * tr;
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char * end;
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tr=strtok_r(input,"/",&end);
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for(int i = 0;tr;i++)
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{
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if(debug == 1)
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{
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printf("TR: %s\n", tr);
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}
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result[i] = (char *) malloc(strlen(tr)+1);
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strcpy(result[i], tr);
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tr=strtok_r(NULL,"/",&end);
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}
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return 1;
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}
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/*Node_Tree() Basically a unix-like ls
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*@Param1: Result char * foo[strlen(sentence)]
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*@Param2: char sentence[] = foo/bar/bin/whatever
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*Return: 0 if failure, 1 if success
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*/
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int Node_Tree(char * result, char * input1)
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{
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if(!input1)
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{
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return 0;
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}
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char input[strlen(input1)];
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bzero(input, strlen(input1));
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strcpy(input, input1);
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for(int i=0; i<strlen(input); i++)
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{
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if(input[i] == '/')
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{
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input[i] = ' ';
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}
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}
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strcpy(result, input);
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if(debug == 1)
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{
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printf("Node_Tree Internal Result: %s\n",result);
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}
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return 1;
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}
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#endif
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