diff --git a/src/main.c b/src/main.c
index 4d49883..11f883d 100644
--- a/src/main.c
+++ b/src/main.c
@@ -10,24 +10,34 @@
 int main(int argc, unsigned char *argv[]) {
   printf("Hello World!\n");
   //TODO: verify argv and assign it to variables
+  char* archiveName = "1234";
+  const unsigned long archiveOffset = 0UL;
+  const unsigned long fileLength = 0xffffUL;
+  uint32_t key0 = 0;
+  uint32_t key1 = 0;
+  uint32_t key2 = 0;
 
   //Initialise file reader
-  initFileReader("1234", 0UL);
+  initFileReader(archiveName, archiveOffset);
 
   //Skip header (30 bytes + additional length)
   char* fileHeader = getBytes(30UL);
   printf(fileHeader);
   //TODO: check that header is correct
+  //TODO: read additional length
+  const unsigned long additionalLength = 0UL;
+  getBytes(additionalLength);
 
   //Initialise decryption (pass decryption keys)
-  initDecryptor(0, 0, 0);//TODO
+  initDecryptor(key0, key1, key2);
 
   //Skip 12-byte encryption header
-  char* encryptionHeader = getBytes(12UL);
-  decrypt(encryptionHeader, 12);
+  const unsigned long encrHeaderLength = 12UL;
+  char* encrHeader = getBytes(encrHeaderLength);
+  decrypt(encrHeader, encrHeaderLength);
 
   //Read actual file
-  unsigned long remainingBytes = 0xFFFF;//TODO
+  unsigned long remainingBytes = fileLength;
   while (remainingBytes > 0) {
     const unsigned long chunkSize = min(0xFF, remainingBytes);
     char* chunk = getBytes(chunkSize);