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[PATCH 21/24] check_aliased_update(): check that dst_name is non-NULL

From
David Turner <dturner@twopensource.com>
Date
Apr 7, 2016, 19:03 UTC
Message-ID
<1460055791-23313-22-git-send-email-dturner@twopensource.com>
In-Reply-To
<1460055791-23313-1-git-send-email-dturner@twopensource.com>
From: Michael Haggerty <mhagger@alum.mit.edu>

If there is an error in resolve_ref_unsafe(), it returns NULL. We check for this case, but not until after calling strip_namespace(). Instead, call strip_namespace() *after* the NULL check.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
 builtin/receive-pack.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index c8e32b2..49cc88d 100644
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -1081,13 +1081,13 @@ static void check_aliased_update(struct command *cmd, struct string_list *list)
 	if (!(flag & REF_ISSYMREF))
 		return;
 
-	dst_name = strip_namespace(dst_name);
 	if (!dst_name) {
 		rp_error("refusing update to broken symref '%s'", cmd->ref_name);
 		cmd->skip_update = 1;
 		cmd->error_string = "broken symref";
 		return;
 	}
+	dst_name = strip_namespace(dst_name);
 
 	if ((item = string_list_lookup(list, dst_name)) == NULL)
 		return;

-- 
2.4.2.767.g62658d5-twtrsrc
Previous: David TurnerNext: David Turner
Message 26 of 32 in “Yet another pre-refs-backend series”
  1. 00/24 Yet another pre-refs-backend seriesDavid Turner, Apr 7, 2016
  2. 01/24 refs: move head_ref{,_submodule} to the common codeDavid Turner, Apr 7, 2016
  3. 02/24 refs: move for_each_*ref* functions into common codeDavid Turner, Apr 7, 2016
  4. 03/24 t1430: test the output and error of some commands more carefullyDavid Turner, Apr 7, 2016
  5. Michael HaggertyApr 8, 2016
  6. David TurnerApr 8, 2016
  7. Junio C HamanoApr 8, 2016
  8. David TurnerApr 8, 2016
  9. 04/24 t1430: clean up broken refs/tags/shadowDavid Turner, Apr 7, 2016
  10. 05/24 t1430: don't rely on symbolic-ref for creating broken symrefsDavid Turner, Apr 7, 2016
  11. 06/24 t1430: test for-each-ref in the presence of badly-named refsDavid Turner, Apr 7, 2016
  12. 07/24 t1430: improve test coverage of deletion of badly-named refsDavid Turner, Apr 7, 2016
  13. 08/24 resolve_missing_loose_ref(): simplify semanticsDavid Turner, Apr 7, 2016
  14. 09/24 resolve_ref_unsafe(): use for loop to count up to MAXDEPTHDavid Turner, Apr 7, 2016
  15. 10/24 resolve_ref_unsafe(): ensure flags is always setDavid Turner, Apr 7, 2016
  16. 11/24 resolve_ref_1(): eliminate local variableDavid Turner, Apr 7, 2016
  17. 12/24 resolve_ref_1(): reorder codeDavid Turner, Apr 7, 2016
  18. 13/24 resolve_ref_1(): eliminate local variable "bad_name"David Turner, Apr 7, 2016
  19. 14/24 files-backend: break out ref readingDavid Turner, Apr 7, 2016
  20. 15/24 read_raw_ref(): manage own scratch spaceDavid Turner, Apr 7, 2016
  21. 16/24 Inline resolve_ref_1() into resolve_ref_unsafe()David Turner, Apr 7, 2016
  22. 17/24 read_raw_ref(): change flags parameter to unsigned intDavid Turner, Apr 7, 2016
  23. 18/24 fsck_head_link(): remove unneeded flag variableDavid Turner, Apr 7, 2016
  24. 19/24 cmd_merge(): remove unneeded flag variableDavid Turner, Apr 7, 2016
  25. 20/24 checkout_paths(): remove unneeded flag variableDavid Turner, Apr 7, 2016
  26. 21/24 check_aliased_update(): check that dst_name is non-NULLDavid Turner, Apr 7, 2016
  27. 22/24 show_head_ref(): check the result of resolve_ref_namespace()David Turner, Apr 7, 2016
  28. 23/24 refs: move resolve_ref_unsafe into common codeDavid Turner, Apr 7, 2016
  29. 24/24 refs: on symref reflog expire, lock symref not referrentDavid Turner, Apr 7, 2016
  30. Junio C HamanoApr 7, 2016
  31. Michael HaggertyApr 9, 2016
  32. Junio C HamanoApr 10, 2016

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