- fixed dealloc

src/lib/checksum.cpp

@@ -23,37 +23,41 @@ string Checksum::checksum_of_file(string filepath, checksum_algorithms alg) {
     char * memBlock;
     fileSize = file.tellg();
     memBlock = new char[fileSize];
-    file.seekg(0,ios::beg);
-    file.read(memBlock, fileSize);
-    switch ( alg ) {
-      case md5: {
-                  unsigned char result[MD5_DIGEST_LENGTH];
-                  MD5((unsigned char*) memBlock, fileSize, result);
-                  for (int i=0; i<MD5_DIGEST_LENGTH; i++) {
-                    hex_result<< hex << setw(2) << setfill('0') << (int) result[i];
+    if (NULL != memBlock) {
+      file.seekg(0,ios::beg);
+      file.read(memBlock, fileSize);
+      switch ( alg ) {
+        case md5: {
+                    unsigned char result[MD5_DIGEST_LENGTH];
+                    MD5((unsigned char*) memBlock, fileSize, result);
+                    for (int i=0; i<MD5_DIGEST_LENGTH; i++) {
+                      hex_result<< hex << setw(2) << setfill('0') << (int) result[i];
+                    }
+                    break;
                   }
-                  break;
-                }
-      case sha1: {
-                   unsigned char result[SHA_DIGEST_LENGTH];
-                   SHA1((unsigned char*) memBlock, fileSize, result);
-                   for (int i=0; i<SHA_DIGEST_LENGTH; i++) {
-                     hex_result<< hex << setw(2) << setfill('0') << (int) result[i];
+        case sha1: {
+                     unsigned char result[SHA_DIGEST_LENGTH];
+                     SHA1((unsigned char*) memBlock, fileSize, result);
+                     for (int i=0; i<SHA_DIGEST_LENGTH; i++) {
+                       hex_result<< hex << setw(2) << setfill('0') << (int) result[i];
+                     }
+                     break;
                    }
-                   break;
-                 }
-		 case sha256: {
-                   unsigned char result[SHA_DIGEST_LENGTH];
-                   SHA256((unsigned char*) memBlock, fileSize, result);
-                   for (int i=0; i<SHA_DIGEST_LENGTH; i++) {
-                     hex_result<< hex << setw(2) << setfill('0') << (int) result[i];
-                   }
-                   break;
-                 }
+        case sha256: {
+                       unsigned char result[SHA_DIGEST_LENGTH];
+                       SHA256((unsigned char*) memBlock, fileSize, result);
+                       for (int i=0; i<SHA_DIGEST_LENGTH; i++) {
+                         hex_result<< hex << setw(2) << setfill('0') << (int) result[i];
+                       }
+                       break;
+                     }
 
+      }
+      delete memBlock[];
+      // cout << "# # CHECKSUM for filepath '" << filepath << "' " << hex_result.str() << endl;
+    }else {
+      cout << "could not alloc memory" << endl;
     }
-    delete memBlock;
-    // cout << "# # CHECKSUM for filepath '" << filepath << "' " << hex_result.str() << endl;
     file.close();
   } else {
     cout << "file '"<< filepath << "' could not be opened" << endl;
@@ -78,10 +82,10 @@ oxum_t Checksum::oxum_of_file(string filepath) {
 }
 
 oxum_t Checksum::oxum_of_filelist( list<string> files) {
-oxum_t oxum;
-oxum.octetcount=0;
-oxum.streamcount=0;
-list<string>::iterator i;
+  oxum_t oxum;
+  oxum.octetcount=0;
+  oxum.streamcount=0;
+  list<string>::iterator i;
   for (i=files.begin(); i!= files.end(); i++) {
     oxum_t tmp = this->oxum_of_file( *i );
     oxum.octetcount+= tmp.octetcount;