Don't delete everything under a string-subkeyed primary key by using a

loop that fetches the next item using conf_get_str_strs and passing
the previous key as a parameter, because the previous key will have
been freed by the intervening conf_del_str_str. Instead, use the
technique of repeatedly using conf_get_str_nthstrkey with index 0 and
deleting what comes back, as PSCP and PSFTP do.

Spotted by Minefield with the aid of Jacob, or possibly vice versa.

git-svn-id: svn://svn.tartarus.org/sgt/putty@9220 cda61777-01e9-0310-a592-d414129be87e

diff --git a/settings.c b/settings.c
index de69d66..934f186 100644 (file)
--- a/settings.c
+++ b/settings.c
@@ -145,10 +145,8 @@ static int gppmap(void *handle, char *name, Conf *conf, int primary)
     /*
      * Start by clearing any existing subkeys of this key from conf.
      */
-    for (val = conf_get_str_strs(conf, primary, NULL, &key);
-        val != NULL;
-        val = conf_get_str_strs(conf, primary, key, &key))
-       conf_del_str_str(conf, primary, key);
+    while ((key = conf_get_str_nthstrkey(conf, primary, 0)) != NULL)
+        conf_del_str_str(conf, primary, key);
 
     /*
      * Now read a serialised list from the settings and unmarshal it