From 73d9d4b861e1d08af84d5aab8d472c6595d3421e Mon Sep 17 00:00:00 2001
From: Godzil <godzil@godzil.n et>
Date: Mon, 30 May 2022 15:40:29 +0100
Subject: [PATCH] Add a primitive write function and function to get the
 version.

MiniFFS is not really meant to write in the files, but in some cases it could be needed so that was added for that reason. If the changes are applied or not to the actual file is implementation dependent. So be careful.
---
 includes/miniffs.h |  3 +++
 miniffs.c          | 28 ++++++++++++++++++++++++++++
 2 files changed, 31 insertions(+)

diff --git a/includes/miniffs.h b/includes/miniffs.h
index 746d2e3..790ab58 100644
--- a/includes/miniffs.h
+++ b/includes/miniffs.h
@@ -94,6 +94,9 @@ uint8_t miniffs_read(file_t *file);                                          /**
 int miniffs_seek(file_t *file, size_t offset, int whence);                   /***< Set position in a file */
 size_t miniffs_tell(file_t *file);                                           /***< Get current position in a file*/
 
+int miniffs_write(file_t *file, char value);
+char *miniffs_getversion();
+
 typedef enum miniffs_error_t
 {
     MINIFFS_NOERROR = 0,
diff --git a/miniffs.c b/miniffs.c
index 3803cd6..f199b51 100644
--- a/miniffs.c
+++ b/miniffs.c
@@ -90,6 +90,29 @@ uint8_t miniffs_read(file_t *file)
     return ret;
 }
 
+int miniffs_write(file_t *file, char value)
+{
+    miniffs_t *fs = (miniffs_t *) file->private_data;
+    uint8_t *filePtr = miniffs_getfileaddr(fs, file->fent);
+
+
+    filePtr[file->offset] = value;
+
+    file->offset++;
+
+    if (file->offset >= file->fent->size)
+    {
+        miniffs_seterror(MINIFFS_END_OF_FILE);
+        file->offset = file->fent->size - 1;
+    }
+    else
+    {
+        miniffs_seterror(MINIFFS_NOERROR);
+    }
+
+    return 0;
+}
+
 int miniffs_read_blocks(void *ptr, size_t size, size_t nmemb, file_t *file)
 {
     int i;
@@ -220,4 +243,9 @@ exit:
 void miniffs_seterror(miniffs_error_t err)
 {
     last_error = err;
+}
+
+char *miniffs_getversion()
+{
+    return VERSION;
 }
\ No newline at end of file