db: checksum installed files, protect config files

Checksum of installed is computed on the fly when extracting them
and it'll be saved to fdb. When installing config files those are
diverted with suffix .apk-new if earlier version of same file with
local changes exist.

1 files changed, 15 insertions, 2 deletions

diff --git a/src/apk_io.h b/src/apk_io.h
index a0ceac2..0eadec0 100644
--- a/src/apk_io.h
+++ b/src/apk_io.h
@@ -14,15 +14,28 @@
 #include "apk_defines.h"
 #include "apk_blob.h"
 
+struct apk_file_info {
+	char *name;
+	char *link_target;
+	char *uname;
+	char *gname;
+	off_t size;
+	uid_t uid;
+	gid_t gid;
+	mode_t mode;
+	time_t mtime;
+	dev_t device;
+	csum_t csum;
+};
+
 struct apk_istream {
 	size_t (*read)(void *stream, void *ptr, size_t size);
-	size_t (*splice)(void *stream, int fd, size_t size);
 	void (*close)(void *stream);
 };
 
 struct apk_bstream {
 	size_t (*read)(void *stream, void **ptr);
-	void (*close)(void *stream, csum_t csum);
+	void (*close)(void *stream, csum_p csum);
 };
 
 struct apk_istream *apk_istream_from_fd(int fd);