dedup

commit d3ec97d4abc70c1e5c87f5ff5f7b4800fdf89bcb
parent 6fa8f387de8c032029f8a3e9994d5ac5be5c7670
Author: sin <sin@2f30.org>
Date:   Mon, 25 Feb 2019 11:46:30 +0000

Print error when trying to extract an unknown snapshot id

Diffstat:
M
dedup.c
 | 
5
+++++

1 file changed, 5 insertions(+), 0 deletions(-)
diff --git a/dedup.c b/dedup.c
@@ -28,6 +28,7 @@ enum {
 struct extract_args {
 	uint8_t *md;
 	int fd;
+	int ret;
 };
 
 static struct snapshot_hdr snaphdr;
@@ -305,6 +306,7 @@ extract(struct snapshot *snap, void *arg)
 	}
 	free_buf(buf[1]);
 	free_buf(buf[0]);
+	args->ret = 0;
 	return WALK_STOP;
 }
 
@@ -601,7 +603,10 @@ main(int argc, char *argv[])
 		str2bin(id, md);
 		args.md = md;
 		args.fd = fd;
+		args.ret = -1;
 		walk_snap(extract, &args);
+		if (args.ret != 0)
+			errx(1, "unknown snapshot: %s", id);
 	} else {
 		dedup(fd, msg);
 	}