2 files changed, 10 insertions, 6 deletions
diff --git a/src/storage/storage.c b/src/storage/storage.c
index 22c5c49..40185a3 100644
--- a/src/storage/storage.c
+++ b/src/storage/storage.c
@@ -6,7 +6,7 @@
 #include <stdint.h> /* defines SIZE_MAX */
 #include <stdio.h>
 
-#include "../pipe/pipe.h"
+#include "../error/error.h"
 
 #include "storage.h"
 
@@ -15,12 +15,17 @@ int ZoO_storage_write_line
    const char filename [const restrict static 1],
    char line [const restrict static 1],
    size_t const line_size,
-   const struct ZoO_pipe io [const restrict static 1]
+   FILE io [const restrict static 1]
 )
 {
    const int old_errno = errno;
    FILE * file;
 
+   if (filename == (const char *) NULL)
+   {
+      return 0;
+   }
+
    file = fopen(filename, "a");
 
    if (file == (FILE *) NULL)
@@ -53,8 +58,7 @@ int ZoO_storage_write_line
       ZoO_ERROR
       (
          io,
-         "Could not store line '%s' in %s.",
-         line,
+         "Could not store line in storage file %s.",
          filename
       );
 
diff --git a/src/storage/storage.h b/src/storage/storage.h
index c287b23..9eff281 100644
--- a/src/storage/storage.h
+++ b/src/storage/storage.h
@@ -1,14 +1,14 @@
 #ifndef _ZoO_STORAGE_STORAGE_H_
 #define _ZoO_STORAGE_STORAGE_H_
 
-#include "../pipe/pipe_types.h"
+#include <stdio.h>
 
 int ZoO_storage_write_line
 (
    const char filename [const restrict static 1],
    char line [const restrict static 1],
    size_t const line_size,
-   const struct ZoO_pipe io [const restrict static 1]
+   FILE io [const restrict static 1]
 );
 
 #endif