summaryrefslogtreecommitdiffstats
path: root/qemu/roms/openbios/fs/ext2/ext2_mount.c
diff options
context:
space:
mode:
Diffstat (limited to 'qemu/roms/openbios/fs/ext2/ext2_mount.c')
-rw-r--r--qemu/roms/openbios/fs/ext2/ext2_mount.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/qemu/roms/openbios/fs/ext2/ext2_mount.c b/qemu/roms/openbios/fs/ext2/ext2_mount.c
new file mode 100644
index 000000000..06b63deca
--- /dev/null
+++ b/qemu/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;
+}