commit a7cf3076b06abc153debc994e54adfb606bd77f9
from: Stefan Sperling <stsp@stsp.name>
via: Thomas Adam <thomas@xteddy.org>
date: Sat Dec 30 18:51:43 2023 UTC

do not crash when a meta-data file in the .got directory is empty

Reported by Matthias Schmidt
ok tb@

commit - 2a2e593352ba687c161d743f54bf5addc8f06d7d
commit + a7cf3076b06abc153debc994e54adfb606bd77f9
blob - 5ca8baf35beb64bc05c5d0a9686bfc5324e0258f
blob + 7a75e7fcc5708ed78a01f8a89bf3bd3d6b5af636
--- lib/worktree_open.c
+++ lib/worktree_open.c
@@ -77,6 +77,10 @@ read_meta_file(char **content, const char *path_got, c
 
 	if (fstat(fd, &sb) != 0) {
 		err = got_error_from_errno2("fstat", path);
+		goto done;
+	}
+	if (sb.st_size == 0) {
+		err = got_error_path(path, GOT_ERR_WORKTREE_META);
 		goto done;
 	}
 	*content = calloc(1, sb.st_size);