Added ability to save blockchain into file

blockchain.c

@@ -682,7 +682,7 @@ bool valid_proof(char* last_hash, char* trans_hash,  long proof) {
     hash256(hash_value,guess);
 
     if(1)
-        return (hash_value[0] == '0' && hash_value[1] == '0' && hash_value[2] == '0'  /*&& (hash_value[3] > 60 && hash_value[3] < 127)*/);
+        return (hash_value[0] == '0' && hash_value[1] == '0' /* && hash_value[2] == '0'  && (hash_value[3] > 60 && hash_value[3] < 127)*/);
     else
         return (hash_value[0] == '0' && hash_value[1] == '0' && hash_value[2] == '0' && (hash_value[3] > 60 && hash_value[3] < 127));
 
@@ -1011,6 +1011,33 @@ int strip_pub_key(char* output, char* pub_key) {
 }
 
 
+
+int save_chain_to_file(blockchain* in_chain, char* file_name) {
+
+    printf("Saving our chain to file: '%s'\n", file_name);
+    FILE* chain_file = fopen(file_name, "w"); //blockchain_file name
+    if(chain_file == NULL) return 0;
+
+    blink* temp = in_chain->head;
+
+    while(temp != NULL) {
+
+        char block_to_write[BLOCK_STR_SIZE];
+        string_block(block_to_write,&temp->data);
+        strcat(block_to_write,"\n");
+        fwrite(block_to_write,1,strlen(block_to_write), chain_file);
+
+        temp = temp->next;
+    }
+
+    fclose(chain_file);
+
+    return 1;
+
+}
+
+
+
 //Block-link FUNCTIONS:
 blink* blink_create()
 {

blockchain.h

@@ -92,6 +92,7 @@ typedef struct alt_chain {
 //Chain functions
 blockchain* new_chain();
 int discard_chain(blockchain* in_chain);
+int save_chain_to_file(blockchain* in_chain, char* file_name);
 void new_transaction(blockchain* in_chain, char* in_sender, char* in_recipient, int in_amount,char* in_signature);
 void new_post(blockchain* in_chain, char* in_sender, char in_data, char* in_signature);
 blink* append_current_block(blockchain* in_chain, long in_proof);
@@ -107,7 +108,6 @@ int extract_transactions_raw(transaction* trans_array, char* in_trans);
 
 int extract_posts_raw(post* post_array, char* input_posts_string);
 int validate_posts(blockchain* in_chain, post* new_post_array, int nr_of_posts);
-int verify_post_format(const char* post);
 
 
 

chain_0.noins

@@ -0,0 +1,5 @@
+0000000000.0000000000.0.0..00.00000000000000000100.
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+0000000002.1517614976.0.0.MIIBCgKCAQEAw2rs/S9hdaxRqoJITwpzDqHaB3u7T8fjCw24y7X6wM+/xAuQC6wnDXMnsAw4ofkjXb5rw4osmyjFIT/iJjvXe5+5aKUk4S5rX/wMe5blq6eBU00pkEullYMjdXjV3sOGPzsBq2a5pqAZi07ozbzKNHQbqz5QuoYqFpTkRqNJvLCv8Hqb/UWdJPpdZsHEO+zL3VkBzOIaLQ8UA6AFYgR1S3hFKd+8lZoimKor/aTLgKpnwfZKQazDU9nkk/O/F43tW+ckXWKhevZuJ64y48H1kx994VzTRHKgZcEwweP2TQ7pfoqdJlBQJ6aZEjj48l8+bhUVLMCdRMj1Uq+ZqvMABQIDAP//:MIIBCgKCAQEAw2rs/S9hdaxRqoJITwpzDqHaB3u7T8fjCw24y7X6wM+/xAuQC6wnDXMnsAw4ofkjXb5rw4osmyjFIT/iJjvXe5+5aKUk4S5rX/wMe5blq6eBU00pkEullYMjdXjV3sOGPzsBq2a5pqAZi07ozbzKNHQbqz5QuoYqFpTkRqNJvLCv8Hqb/UWdJPpdZsHEO+zL3VkBzOIaLQ8UA6AFYgR1S3hFKd+8lZoimKor/aTLgKpnwfZKQazDU9nkk/O/F43tW+ckXWKhevZuJ64y48H1kx994VzTRHKgZcEwweP2TQ7pfoqdJlBQJ6aZEjj48l8+bhUVLMCdRMj1Uq+ZqvMABQIDAP//:0000000002: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.01.00000000000000008826.02153e70947dde7ad84fb844d13cbb6ae349cd5ae8cb1d847704a5e52366462d
+0000000003.1517614978.0.0.MIIBCgKCAQEAw2rs/S9hdaxRqoJITwpzDqHaB3u7T8fjCw24y7X6wM+/xAuQC6wnDXMnsAw4ofkjXb5rw4osmyjFIT/iJjvXe5+5aKUk4S5rX/wMe5blq6eBU00pkEullYMjdXjV3sOGPzsBq2a5pqAZi07ozbzKNHQbqz5QuoYqFpTkRqNJvLCv8Hqb/UWdJPpdZsHEO+zL3VkBzOIaLQ8UA6AFYgR1S3hFKd+8lZoimKor/aTLgKpnwfZKQazDU9nkk/O/F43tW+ckXWKhevZuJ64y48H1kx994VzTRHKgZcEwweP2TQ7pfoqdJlBQJ6aZEjj48l8+bhUVLMCdRMj1Uq+ZqvMABQIDAP//:MIIBCgKCAQEAw2rs/S9hdaxRqoJITwpzDqHaB3u7T8fjCw24y7X6wM+/xAuQC6wnDXMnsAw4ofkjXb5rw4osmyjFIT/iJjvXe5+5aKUk4S5rX/wMe5blq6eBU00pkEullYMjdXjV3sOGPzsBq2a5pqAZi07ozbzKNHQbqz5QuoYqFpTkRqNJvLCv8Hqb/UWdJPpdZsHEO+zL3VkBzOIaLQ8UA6AFYgR1S3hFKd+8lZoimKor/aTLgKpnwfZKQazDU9nkk/O/F43tW+ckXWKhevZuJ64y48H1kx994VzTRHKgZcEwweP2TQ7pfoqdJlBQJ6aZEjj48l8+bhUVLMCdRMj1Uq+ZqvMABQIDAP//:0000000002: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.01.00000000000000008826.02153e70947dde7ad84fb844d13cbb6ae349cd5ae8cb1d847704a5e52366462d
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node.c

@@ -13,7 +13,7 @@
 #include "data_containers/linked_list.h"
 #include "node.h"
 
-#define DEBUG 0
+#define DEBUG 1
 #define MESSAGE_LENGTH 100000
 #define SHORT_MESSAGE_LENGTH 300
 
@@ -31,6 +31,7 @@ char* pri_key;
 
 char pri_file[300];
 char pub_file[300];
+char our_chain_file[300];
 
 //Blockchains
 blockchain* our_chain;
@@ -844,6 +845,9 @@ void graceful_shutdown(int dummy) {
     li_discard(outbound_msg_queue);
     li_discard(inbound_msg_queue);
 
+    //Save blockchain to file
+    save_chain_to_file(our_chain, our_chain_file);
+
     //Discard blockchains
     discard_chain(our_chain);
     dict_foreach(foreign_chains, destroy_chains_in_dict, NULL);
@@ -977,6 +981,7 @@ int main(int argc, char* argv[]) {
     strcpy(node_list_file, "node.cfg");
     strcpy(pri_file, "pri_0.pem");
     strcpy(pub_file, "pub_0.pem");
+    strcpy(our_chain_file, "chain_0.noins");
 
     //Create foreign chain dict
     foreign_chains = dict_create();