fs/squashfs: implement exists() function

This permits to find a file and use the distro_bootcmd

Reviewed-by: Joao Marcos Costa <jmcosta944@gmail.com>
Signed-off-by: Richard Genoud <richard.genoud@posteo.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/squashfs.h b/include/squashfs.h
index 819cf8c2da8..7489eefa1f2 100644
--- a/include/squashfs.h
+++ b/include/squashfs.h
@@ -19,6 +19,7 @@ int sqfs_probe(struct blk_desc *fs_dev_desc,
 int sqfs_read(const char *filename, void *buf, loff_t offset,
 	      loff_t len, loff_t *actread);
 int sqfs_size(const char *filename, loff_t *size);
+int sqfs_exists(const char *filename);
 void sqfs_close(void);
 void sqfs_closedir(struct fs_dir_stream *dirs);