rgw_file: split last argv on ws, if provided

This is intended to allow an "extra" unparsed argument string
containing various cmdline options to be passed as the last argument
in the argv array of librgw_create(), which nfs-ganesha is
expecting to happen.

While at it, hook env_args() too.

Signed-off-by: Matt Benjamin <mbenjamin@redhat.com>
(cherry picked from commit fbc19e4effc736c98cc1cc283e5c7b131a0fa766)

diff --git a/src/rgw/librgw.cc b/src/rgw/librgw.cc
index 70fd69e864f76eb2e31c040c8ff2d78ebea6e6d2..0e4075c718083749ed2600e6dafb8c4c1cf56b0e 100644 (file)
--- a/src/rgw/librgw.cc
+++ b/src/rgw/librgw.cc
@@ -629,7 +629,18 @@ int librgw_create(librgw_t* rgw, int argc, char **argv)
     std::lock_guard<std::mutex> lg(librgw_mtx);
     if (! g_ceph_context) {
       vector<const char*> args;
+      std::vector<std::string> spl_args;
+      // last non-0 argument will be split and consumed
+      if (argc > 1) {
+       const std::string spl_arg{argv[(--argc)]};
+       get_str_vec(spl_arg, " \t", spl_args);
+      }
       argv_to_vec(argc, const_cast<const char**>(argv), args);
+      // append split args, if any
+      for (const auto& elt : spl_args) {
+       args.push_back(elt.c_str());
+      }
+      env_to_vec(args);
       rc = rgwlib.init(args);
     }
   }