tor

commit 254c1bac453fdb7d3e29a5cde9757542990a6989
parent e07d08a169c3dd43f4cd134c8f993c3f199c2bcc
Author: teor <teor@torproject.org>
Date:   Sat, 10 Aug 2019 07:21:56 +1000

Merge remote-tracking branch 'tor-github/pr/1078' into maint-0.2.9

Diffstat:
A
changes/bug30781
 | 
4
++++
M
src/or/routerparse.c
 | 
3
+++

2 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/changes/bug30781 b/changes/bug30781
@@ -0,0 +1,4 @@
+  o Minor bugfixes (directory authorities):
+    - Stop crashing after parsing an unknown descriptor purpose annotation.
+      We think this bug can only be triggered by modifying a local file.
+      Fixes bug 30781; bugfix on 0.2.0.8-alpha.
diff --git a/src/or/routerparse.c b/src/or/routerparse.c
@@ -1921,6 +1921,9 @@ router_parse_entry_from_string(const char *s, const char *end,
   if ((tok = find_opt_by_keyword(tokens, A_PURPOSE))) {
     tor_assert(tok->n_args);
     router->purpose = router_purpose_from_string(tok->args[0]);
+    if (router->purpose == ROUTER_PURPOSE_UNKNOWN) {
+      goto err;
+    }
   } else {
     router->purpose = ROUTER_PURPOSE_GENERAL;
   }