Fix startup crash when using a locale boost does not like

There are various locale related bugs in various versions of boost,
where exceptions are thrown in boost::filesystem APIs when the
current locale is not to boost's liking. It's not clear what "not
to boost's liking" means in detail, though "en" and "en_US.UTF-8"
are not to its liking.

Fix it by running a test function that's known to throw in such
a case, and resetting LANG and LC_ALL to C if an exception is
thrown. In simplewallet, the locale is queried before that so the
correct translations will still be used.

1 files changed, 4 insertions, 1 deletions

diff --git a/src/simplewallet/simplewallet.cpp b/src/simplewallet/simplewallet.cpp
index 3d7a23d5e..3e1ca4210 100644
--- a/src/simplewallet/simplewallet.cpp
+++ b/src/simplewallet/simplewallet.cpp
@@ -2164,6 +2164,9 @@ int main(int argc, char* argv[])
 
   //TRY_ENTRY();
 
+  std::string lang = i18n_get_language();
+  tools::sanitize_locale();
+
   string_tools::set_module_name_and_folder(argv[0]);
 
   po::options_description desc_general(sw::tr("General options"));
@@ -2212,7 +2215,7 @@ int main(int argc, char* argv[])
   po::positional_options_description positional_options;
   positional_options.add(arg_command.name, -1);
 
-  i18n_set_language("translations", "monero");
+  i18n_set_language("translations", "monero", lang);
 
   po::options_description desc_all;
   desc_all.add(desc_general).add(desc_params);