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[tor-commits] [tor/master] check outputs from get_first_listener_addrport_string



commit 753a246a14a021dc3e4bc26c40d6fe7c2d60bb1b
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date:   Thu Mar 27 17:11:53 2014 -0400

    check outputs from get_first_listener_addrport_string
    
    Fix for 9650; bugfix for 0.2.3.16-alpha.
---
 changes/bug9650     |    4 ++++
 src/or/transports.c |   12 ++++++++----
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/changes/bug9650 b/changes/bug9650
new file mode 100644
index 0000000..c49cc24
--- /dev/null
+++ b/changes/bug9650
@@ -0,0 +1,4 @@
+  o Minor bugfixes:
+    - Avoid potential crashes or bad behavior when launching a
+      server-side managed proxy with ORPort or ExtORPort temporarily
+      disabled. Fixes bug 9650; bugfix on 0.2.3.16-alpha.
diff --git a/src/or/transports.c b/src/or/transports.c
index 8b4a118..7e496fe 100644
--- a/src/or/transports.c
+++ b/src/or/transports.c
@@ -1243,8 +1243,10 @@ create_managed_proxy_environment(const managed_proxy_t *mp)
     {
       char *orport_tmp =
         get_first_listener_addrport_string(CONN_TYPE_OR_LISTENER);
-      smartlist_add_asprintf(envs, "TOR_PT_ORPORT=%s", orport_tmp);
-      tor_free(orport_tmp);
+      if (orport_tmp) {
+        smartlist_add_asprintf(envs, "TOR_PT_ORPORT=%s", orport_tmp);
+        tor_free(orport_tmp);
+      }
     }
 
     {
@@ -1275,8 +1277,10 @@ create_managed_proxy_environment(const managed_proxy_t *mp)
         get_first_listener_addrport_string(CONN_TYPE_EXT_OR_LISTENER);
       char *cookie_file_loc = get_ext_or_auth_cookie_file_name();
 
-      smartlist_add_asprintf(envs, "TOR_PT_EXTENDED_SERVER_PORT=%s",
-                             ext_or_addrport_tmp);
+      if (ext_or_addrport_tmp) {
+        smartlist_add_asprintf(envs, "TOR_PT_EXTENDED_SERVER_PORT=%s",
+                               ext_or_addrport_tmp);
+      }
       smartlist_add_asprintf(envs, "TOR_PT_AUTH_COOKIE_FILE=%s",
                              cookie_file_loc);
 



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