commit 1bf2f1a06ee90cababf6787d589e91dd56a02852
from: Stefan Sperling <stsp@stsp.name>
date: Wed Dec 27 12:46:46 2023 UTC

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

Reported by Matthias Schmidt
ok tb@

commit - 65d7451409bf603e3c302b7d0ce999f7ce542508
commit + 1bf2f1a06ee90cababf6787d589e91dd56a02852
blob - cbce00f57c0999cd56f639776fdc0be83f732cf9
blob + 4b99863a5f6d3ae6dcce8b52c6d2a93a1a80b3d3
--- lib/worktree_open.c
+++ lib/worktree_open.c
@@ -78,6 +78,10 @@ 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);