To fix webconfig crash while using testutility with empty multipart bin

Author: sadhyama

src/webcfg.c

@@ -834,11 +834,21 @@ int testUtility()
 
 	if(readFromFile(TEST_FILE_LOCATION, &data, &test_dataSize) == 1)
 	{
+		if(data != NULL && test_dataSize == 0)
+		{
+			WebcfgError("Test file is empty\n");
+			return 0;
+		}
 		set_g_testfile(1);
 		WebcfgInfo("Using Test file \n");
 
 		char * data_body = malloc(sizeof(char) * test_dataSize+1);
-		memset(data_body, 0, sizeof(char) * test_dataSize+1);
+		if( NULL == data_body )
+		{
+			WebcfgError("Memory allocation for data_body failed.\n");
+			return 0;
+		}
+		memset(data_body, 0, sizeof(char) * (test_dataSize + 1));
 		data_body = memcpy(data_body, data, test_dataSize+1);
 		data_body[test_dataSize] = '\0';
 		char *ptr_count = data_body;
@@ -904,10 +914,6 @@ int testUtility()
 			{
 				WebcfgInfo("Test webConfigData applied successfully\n");
 			}
-			else
-			{
-				WebcfgError("Failed to apply Test root webConfigData received from server\n");
-			}
 		}
 		else
 		{

src/webcfg_multipart.c

@@ -589,7 +589,7 @@ WEBCFG_STATUS parseMultipartDocument(void *config_data, char *ct , size_t data_s
 		}
 		else
 		{
-			WebcfgDebug("processMsgpackSubdoc done,docs are sent for apply\n");
+			WebcfgInfo("processMsgpackSubdoc done,docs are sent for apply\n");
 		}
 		return WEBCFG_FAILURE;
 	}
@@ -1323,13 +1323,19 @@ int readFromFile(char *filename, char **data, int *len)
 	ch_count = ftell(fp);
 	fseek(fp, 0, SEEK_SET);
 	*data = (char *) malloc(sizeof(char) * (ch_count + 1));
-	sz = fread(*data, 1, ch_count-1,fp);
+	if( NULL == *data )
+	{
+		WebcfgError("Memory allocation for data failed.\n");
+		fclose(fp);
+		return 0;
+	}
+	sz = fread(*data, 1, ch_count,fp);
 	if (!sz) 
 	{	
 		fclose(fp);
 		WebcfgError("fread failed.\n");
 		WEBCFG_FREE(*data);
-		return WEBCFG_FAILURE;
+		return 0;
 	}
 	*len = ch_count;
 	(*data)[ch_count] ='\0';