changeset 1424:c95588a2b7a2 draft

find.c: Posix wants loop detection.
author Rob Landley <rob@landley.net>
date Tue, 05 Aug 2014 19:41:36 -0500
parents 8059cfd67acd
children 2cf6ce96d442
files toys/posix/find.c
diffstat 1 files changed, 10 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/toys/posix/find.c	Tue Aug 05 19:32:44 2014 -0500
+++ b/toys/posix/find.c	Tue Aug 05 19:41:36 2014 -0500
@@ -189,7 +189,17 @@
     }
     if (S_ISDIR(new->st.st_mode)) {
       if (!new->again) {
+        struct dirtree *n;
+
         if (TT.depth) return recurse;
+        for (n = new->parent; n; n = n->parent) {
+          if (n->st.st_ino==new->st.st_ino && n->st.st_dev==new->st.st_dev) {
+            error_msg("'%s': loop detected", s = dirtree_path(new, 0));
+            free(s);
+
+            return 0;
+          }
+        }
       } else {
         struct double_list *dl;