X-Git-Url: http://gitweb.michael.orlitzky.com/?a=blobdiff_plain;f=src%2Flibadacl.c;h=8ff0c17de6a8a91812469880af2003fbb6e6644f;hb=cb2ef6b2386de44200124904c7a03ce8512f3585;hp=f20d4a393c26f4e22a8e1cb77947214539b6fb5e;hpb=a5d23c3d91c9a7b16e5aec08555133f9ded7d1bb;p=apply-default-acl.git

diff --git a/src/libadacl.c b/src/libadacl.c
index f20d4a3..8ff0c17 100644
--- a/src/libadacl.c
+++ b/src/libadacl.c
@@ -1003,7 +1003,19 @@ int apply_default_acl(const char* path, bool recursive) {
     return ACL_ERROR;
   }
   char* parent = dirname(dirname_path_copy);
+
+  /* Just kidding, if the path is "." or "..", then dirname will do
+   * the wrong thing and give us "." as its parent, too. So, we handle
+   * those as special cases.
+   */
+  bool path_is_dots = strcmp(path, ".") == 0 || strcmp(path, "..") == 0;
+  char dots_parent[6] = "../";
+  if (path_is_dots) {
+    parent = strcat(dots_parent, path);
+  }
+
   parent_fd = safe_open(parent, O_DIRECTORY | O_NOFOLLOW);
+
   if (parent_fd == OPEN_ERROR) {
     if (errno == ELOOP || errno == ENOTDIR) {
       /* We hit a symlink, either in the last path component (ELOOP)
@@ -1028,7 +1040,16 @@ int apply_default_acl(const char* path, bool recursive) {
     result = ACL_ERROR;
     goto cleanup;
   }
-  fd = openat(parent_fd, basename(basename_path_copy), O_NOFOLLOW);
+
+  /* If the basename is "." or "..", then we don't want to open it
+     relative to the parent_fd, so we need another special case for
+     those paths. */
+  if (path_is_dots) {
+    fd = open(path, O_NOFOLLOW);
+  }
+  else {
+    fd = openat(parent_fd, basename(basename_path_copy), O_NOFOLLOW);
+  }
   if (fd == OPEN_ERROR) {
     if (errno == ELOOP || errno == ENOTDIR) {
       /* We hit a symlink, either in the last path component (ELOOP)