move file helper functions to separate file

We have our file helper functions in several places. Move them
all to lib/libfile.c.
With this we no longer have file helpers in fs/fs.c which contains
the core fs functions and no functions in lib/libbb.c which are
not from busybox.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 0 insertions, 14 deletions

diff --git a/include/fs.h b/include/fs.h
index 073641c747..b2541a4ee5 100644
--- a/include/fs.h
+++ b/include/fs.h
@@ -164,20 +164,6 @@ int ls(const char *path, ulong flags);
 char *mkmodestr(unsigned long mode, char *str);
 
 /*
- * Read a file into memory. Memory is allocated with malloc and must
- * be freed with free() afterwards. This function allocates one
- * byte more than actually needed and sets this to zero, so that
- * it can be used for text files.
- * If size is nonzero it s set to the file size.
- */
-void *read_file(const char *filename, size_t *size);
-
-/*
- * Write a buffer to a file. This file is newly created.
- */
-int write_file(const char *filename, void *buf, size_t size);
-
-/*
  * This function turns 'path' into an absolute path and removes all occurrences
  * of "..", "." and double slashes. The returned string must be freed wit free().
  */