Merge branch 'sverk/load-nif-unicode'

OTP-11408

* sverk/load-nif-unicode:
  erts: Fix bug in atom to filename conversions
  Fix open_ddll for win
  erts, crypto: Support NIF library with unicode filename on windows
  erts: Factor out erts_convert_filename_to_wchar()
  erts: Fix compiler warning
  erts: Fix loading of NIF library with unicode in path
  erts: Remove unused constant DRIVER_TAB_SIZE

1 files changed, 12 insertions, 12 deletions

diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c
index 673012a9af..e87959f0ab 100644
--- a/erts/emulator/beam/erl_nif.c
+++ b/erts/emulator/beam/erl_nif.c
@@ -1568,9 +1568,10 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
     void* init_func = NULL;
     ErlNifEntry* entry = NULL;
     ErlNifEnv env;
-    int len, i, err;
+    int i, err, encoding;
     Module* mod;
     Eterm mod_atom;
+    const Atom* mod_atomp;
     Eterm f_atom;
     BeamInstr* caller;
     ErtsSysDdllError errdesc = ERTS_SYS_DDLL_ERROR_INIT;
@@ -1578,20 +1579,18 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
     int veto;
     struct erl_module_nif* lib = NULL;
     int reload_warning = 0;
-    char tmp_buf[255];
 
-    len = list_length(BIF_ARG_1);
-    if (len < 0) {
-	BIF_ERROR(BIF_P, BADARG);
+    encoding = erts_get_native_filename_encoding();
+    if (encoding == ERL_FILENAME_WIN_WCHAR) {
+        /* Do not convert the lib name to utf-16le yet, do that in win32 specific code */
+        /* since lib_name is used in error messages */
+        encoding = ERL_FILENAME_UTF8;
     }
-
-    lib_name = (char *) erts_alloc(ERTS_ALC_T_TMP, len + 1);
-
-    if (intlist_to_buf(BIF_ARG_1, lib_name, len) != len) {
-	erts_free(ERTS_ALC_T_TMP, lib_name);
+    lib_name = erts_convert_filename_to_encoding(BIF_ARG_1, NULL, 0,
+                                                 ERTS_ALC_T_TMP, 1, 0, encoding, NULL);
+    if (!lib_name) {
 	BIF_ERROR(BIF_P, BADARG);
     }
-    lib_name[len] = '\0';
 
     if (!erts_try_seize_code_write_permission(BIF_P)) {
 	erts_free(ERTS_ALC_T_TMP, lib_name);
@@ -1615,7 +1614,8 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
     mod=erts_get_module(mod_atom, erts_active_code_ix());
     ASSERT(mod != NULL);
 
-    init_func = erts_static_nif_get_nif_init(erts_basename(lib_name,tmp_buf));
+    mod_atomp = atom_tab(atom_val(mod_atom));
+    init_func = erts_static_nif_get_nif_init((char*)mod_atomp->name, mod_atomp->len);
     if (init_func != NULL)
       handle = init_func;