Added the filesize() function

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@3473 a1c6a512-1295-4272-9138-f99709370657

2 files changed, 13 insertions, 0 deletions

diff --git a/firmware/common/file.c b/firmware/common/file.c
index d2cad7c647..8c0f9a8951 100644
--- a/firmware/common/file.c
+++ b/firmware/common/file.c
@@ -591,3 +591,15 @@ int lseek(int fd, int offset, int whence)
 
     return pos;
 }
+
+int filesize(int fd)
+{
+    struct filedesc* file = &openfiles[fd];
+
+    if ( !file->busy ) {
+        errno = EBADF;
+        return -1;
+    }
+    
+    return file->size;
+}
diff --git a/firmware/include/file.h b/firmware/include/file.h
index 75c55bbac9..1a2f8e55be 100644
--- a/firmware/include/file.h
+++ b/firmware/include/file.h
@@ -64,6 +64,7 @@ extern int write(int fd, void* buf, int count);
 extern int remove(const char* pathname);
 extern int rename(const char* path, const char* newname);
 extern int ftruncate(int fd, unsigned int size);
+extern int filesize(int fd);
 #endif /* SIMULATOR */
 #endif /* __MINGW32__ */