Moving BSTR conv to native code in SecureStringToBSTR.

[mono.git] / mono / metadata / cominterop.c

diff --git a/mono/metadata/cominterop.c b/mono/metadata/cominterop.c
index 889c19ece4f786221a020fc365cebe41983b7734..bedd740079bfdc160e07c76ae65b67134f7af777 100644 (file)
--- a/mono/metadata/cominterop.c
+++ b/mono/metadata/cominterop.c
@@ -51,6 +51,15 @@ register_icall (gpointer func, const char *name, const char *sigstr, gboolean sa
        mono_register_jit_icall (func, name, sig, save);
 }
 
+gpointer
+mono_string_to_bstr(MonoString* ptr)
+{
+       if (!ptr)
+               return NULL;
+
+       return mono_ptr_to_bstr(mono_string_chars(ptr), mono_string_length(ptr));
+}
+
 #ifndef DISABLE_COM
 
 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
@@ -2742,37 +2751,37 @@ init_com_provider_ms (void)
 }
 
 gpointer
-mono_string_to_bstr (MonoString *string_obj)
+mono_ptr_to_bstr(gpointer ptr, int slen)
 {
-       if (!string_obj)
+       if (!ptr)
                return NULL;
 #ifdef HOST_WIN32
-       return SysAllocStringLen (mono_string_chars (string_obj), mono_string_length (string_obj));
+       return SysAllocStringLen (ptr, slen);
 #else
        if (com_provider == MONO_COM_DEFAULT) {
-               int slen = mono_string_length (string_obj);
                /* allocate len + 1 utf16 characters plus 4 byte integer for length*/
-               char *ret = (char *)g_malloc ((slen + 1) * sizeof(gunichar2) + sizeof(guint32));
+               char *ret = (char *)g_malloc((slen + 1) * sizeof(gunichar2) + sizeof(guint32));
                if (ret == NULL)
                        return NULL;
-               memcpy (ret + sizeof(guint32), mono_string_chars (string_obj), slen * sizeof(gunichar2));
-               * ((guint32 *) ret) = slen * sizeof(gunichar2);
-               ret [4 + slen * sizeof(gunichar2)] = 0;
-               ret [5 + slen * sizeof(gunichar2)] = 0;
+               memcpy(ret + sizeof(guint32), ptr, slen * sizeof(gunichar2));
+               *((guint32 *)ret) = slen * sizeof(gunichar2);
+               ret[4 + slen * sizeof(gunichar2)] = 0;
+               ret[5 + slen * sizeof(gunichar2)] = 0;
 
                return ret + 4;
-       } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
+       }
+       else if (com_provider == MONO_COM_MS && init_com_provider_ms()) {
                gpointer ret = NULL;
                gunichar* str = NULL;
-               guint32 len;
-               len = mono_string_length (string_obj);
-               str = g_utf16_to_ucs4 (mono_string_chars (string_obj), len,
+               guint32 len = slen;
+               str = g_utf16_to_ucs4(ptr, len,
                        NULL, NULL, NULL);
-               ret = sys_alloc_string_len_ms (str, len);
+               ret = sys_alloc_string_len_ms(str, len);
                g_free(str);
                return ret;
-       } else {
-               g_assert_not_reached ();
+       }
+       else {
+               g_assert_not_reached();
        }
 #endif
 }
@@ -3411,20 +3420,19 @@ cominterop_release_all_rcws (void)
 }
 
 gpointer
-mono_string_to_bstr (MonoString *string_obj)
+mono_ptr_to_bstr (gpointer ptr, int slen)
 {
-       if (!string_obj)
+       if (!ptr)
                return NULL;
 #ifdef HOST_WIN32
-       return SysAllocStringLen (mono_string_chars (string_obj), mono_string_length (string_obj));
+       return SysAllocStringLen (ptr, slen);
 #else
        {
-               int slen = mono_string_length (string_obj);
                /* allocate len + 1 utf16 characters plus 4 byte integer for length*/
                char *ret = g_malloc ((slen + 1) * sizeof(gunichar2) + sizeof(guint32));
                if (ret == NULL)
                        return NULL;
-               memcpy (ret + sizeof(guint32), mono_string_chars (string_obj), slen * sizeof(gunichar2));
+               memcpy (ret + sizeof(guint32), ptr, slen * sizeof(gunichar2));
                * ((guint32 *) ret) = slen * sizeof(gunichar2);
                ret [4 + slen * sizeof(gunichar2)] = 0;
                ret [5 + slen * sizeof(gunichar2)] = 0;
@@ -3524,6 +3532,12 @@ ves_icall_System_Runtime_InteropServices_Marshal_StringToBSTR (MonoString* ptr)
        return mono_string_to_bstr(ptr);
 }
 
+gpointer
+ves_icall_System_Runtime_InteropServices_Marshal_BufferToBSTR (MonoArray* ptr, int len)
+{
+       return mono_ptr_to_bstr (ptr->vector, len);
+}
+
 void
 ves_icall_System_Runtime_InteropServices_Marshal_FreeBSTR (gpointer ptr)
 {