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Hashes match on large files

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This commit is contained in:
jmjatlanta 2016-12-23 20:12:51 -05:00
parent 3004f1411a
commit 8f44c857db
3 changed files with 13 additions and 39 deletions
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34
importer/importer.c
View file

@ -43,28 +43,6 @@ int ipfs_importer_add_filesize_to_data_section(struct Node* node, size_t bytes_r
return 1;
}
int test_hash(unsigned char* protobuf, size_t protobuf_length) {
size_t hash_size = 32;
unsigned char hash[32];
if (hash == NULL) {
return 0;
}
if (libp2p_crypto_hashing_sha256(protobuf, protobuf_length, &hash[0]) == 0) {
return 0;
}
// turn it into base58
size_t buffer_len = 100;
unsigned char buffer[buffer_len];
int retVal = ipfs_cid_hash_to_base58(hash, hash_size, buffer, buffer_len);
if (retVal == 0) {
printf("Unable to generate hash\n");
return 0;
}
printf(" hash generated from %lu: %s\n", protobuf_length, buffer);
return 1;
}
/**
* read the next chunk of bytes, create a node, and add a link to the node in the passed-in node
* @param file the file handle
@ -80,10 +58,6 @@ size_t ipfs_import_chunk(FILE* file, struct Node* parent_node, struct FSRepo* fs
struct Node* new_node = NULL;
struct NodeLink* new_link = NULL;
//JMJ
printf("Raw from the file");
test_hash(buffer, bytes_read);
// put the file bits into a new UnixFS file
if (ipfs_unixfs_new(&new_unixfs) == 0)
return 0;
@ -105,9 +79,7 @@ size_t ipfs_import_chunk(FILE* file, struct Node* parent_node, struct FSRepo* fs
ipfs_unixfs_free(new_unixfs);
return 0;
}
//JMJ
printf("unixfs protobuf");
test_hash(protobuf, bytes_written);
// we're done with the UnixFS object
ipfs_unixfs_free(new_unixfs);
@ -125,7 +97,7 @@ size_t ipfs_import_chunk(FILE* file, struct Node* parent_node, struct FSRepo* fs
}
// put link in parent node
if (ipfs_node_link_create("", new_node->hash, new_node->hash_size, &new_link) == 0) {
if (ipfs_node_link_create(NULL, new_node->hash, new_node->hash_size, &new_link) == 0) {
ipfs_node_free(new_node);
return 0;
}
@ -157,7 +129,7 @@ size_t ipfs_import_chunk(FILE* file, struct Node* parent_node, struct FSRepo* fs
}
// put link in parent node
if (ipfs_node_link_create("", new_node->hash, new_node->hash_size, &new_link) == 0) {
if (ipfs_node_link_create(NULL, new_node->hash, new_node->hash_size, &new_link) == 0) {
ipfs_node_free(new_node);
return 0;
}

1
merkledag/merkledag.c
View file

@ -11,6 +11,7 @@
#include "ipfs/merkledag/merkledag.h"
#include "ipfs/unixfs/unixfs.h"
/***
* Adds a node to the dagService and blockService
* @param node the node to add

7
merkledag/node.c
View file

@ -30,7 +30,7 @@ enum WireType ipfs_node_link_message_fields[] = { WIRETYPE_LENGTH_DELIMITED, WIR
*/
int ipfs_node_link_create(char * name, unsigned char * ahash, size_t hash_size, struct NodeLink** node_link)
{
*node_link = malloc(sizeof(struct NodeLink));
ipfs_node_link_new(node_link);
if (*node_link == NULL)
return 0;
@ -40,12 +40,14 @@ int ipfs_node_link_create(char * name, unsigned char * ahash, size_t hash_size,
link->hash = (unsigned char*)malloc(hash_size);
memcpy(link->hash, ahash, hash_size);
// name
if (name != NULL && strlen(name) > 0) {
link->name = malloc(strlen(name) + 1);
if ( link->name == NULL) {
free(link);
return 0;
}
strcpy(link->name, name);
}
// t_size
link->t_size = 0;
// other, non-protobuffed data
@ -185,8 +187,7 @@ int ipfs_node_link_protobuf_decode(unsigned char* buffer, size_t buffer_length,
goto exit;
link->hash_size = hash_size - 2;
link->hash = (unsigned char*)malloc(link->hash_size);
strncpy((char*)link->hash, (char*)hash, link->hash_size);
link->hash[link->hash_size-1] = 0;
memcpy((char*)link->hash, (char*)&hash[2], link->hash_size);
free(hash);
pos += bytes_read;
break;