libsqfs: bring sqfs_file_t in line with stream API

Rename the open function to sqfs_file_open, use an argument for the
return pointer and pass back and error number on failure. Also add
an inermediate function to open an sqfs_file_t using a handle, similar
to the stream API. The get_file_size function is moved to the native
wrappers and some of the implementation is cleaned up a little.

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

1 files changed, 3 insertions, 3 deletions

diff --git a/bin/sqfs2tar/src/sqfs2tar.c b/bin/sqfs2tar/src/sqfs2tar.c
index 714f6db..e21cd7a 100644
--- a/bin/sqfs2tar/src/sqfs2tar.c
+++ b/bin/sqfs2tar/src/sqfs2tar.c
@@ -139,9 +139,9 @@ int main(int argc, char **argv)
 			goto out;
 	}
 
-	file = sqfs_open_file(filename, SQFS_FILE_OPEN_READ_ONLY);
-	if (file == NULL) {
-		perror(filename);
+	ret = sqfs_file_open(&file, filename, SQFS_FILE_OPEN_READ_ONLY);
+	if (ret) {
+		sqfs_perror(filename, "open", ret);
 		goto out;
 	}