Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 62 insertions, 0 deletions

diff --git a/roms/openbios/fs/ext2/ext2_mount.c b/roms/openbios/fs/ext2/ext2_mount.c
new file mode 100644
index 000000000..06b63deca
--- /dev/null
+++ b/roms/openbios/fs/ext2/ext2_mount.c
@@ -0,0 +1,62 @@
+/*
+ *
+ * (c) 2008-2009 Laurent Vivier <Laurent@lvivier.info>
+ *
+ * This file has been copied from EMILE, http://emile.sf.net
+ *
+ */
+
+#include "libext2.h"
+#include "ext2.h"
+#include "ext2_utils.h"
+
+#define SB_OFFSET (2)
+
+ext2_VOLUME* ext2_mount(int fd)
+{
+	ext2_VOLUME *volume;
+	struct ext2_super_block *super;
+	char *buffer;
+
+	super = (struct ext2_super_block*)malloc(sizeof(struct ext2_super_block));
+	if (super == NULL)
+		return NULL;
+
+	ext2_get_super(fd, super);
+	if (super->s_magic != EXT2_SUPER_MAGIC) {
+		free(super);
+		return NULL;
+	}
+
+	buffer = (char*)malloc(EXT2_BLOCK_SIZE(super));
+	if (buffer == NULL) {
+		free(super);
+		return NULL;
+	}
+
+	volume = (ext2_VOLUME*)malloc(sizeof(ext2_VOLUME));
+	if (volume == NULL) {
+		free(super);
+		free(buffer);
+		return NULL;
+	}
+
+	volume->buffer = buffer;
+	volume->fd = fd;
+	volume->super = super;
+
+	volume->current = -1;
+	ext2_read_block(volume, 0);
+
+	return volume;
+}
+
+int ext2_umount(ext2_VOLUME* volume)
+{
+	if (volume == NULL)
+		return -1;
+	free(volume->super);
+	free(volume->buffer);
+	free(volume);
+	return 0;
+}