diff options
Diffstat (limited to 'ext/dl/cfunc.c')
| -rw-r--r-- | ext/dl/cfunc.c | 35 |
1 files changed, 22 insertions, 13 deletions
diff --git a/ext/dl/cfunc.c b/ext/dl/cfunc.c index 4d10c82ff2..21afcc5677 100644 --- a/ext/dl/cfunc.c +++ b/ext/dl/cfunc.c @@ -147,12 +147,12 @@ rb_dlcfunc_initialize(int argc, VALUE argv[], VALUE self) struct cfunc_data *data; void *saddr; const char *sname; - + rb_scan_args(argc, argv, "13", &addr, &type, &name, &calltype); - + saddr = (void*)(NUM2PTR(rb_Integer(addr))); sname = NIL_P(name) ? NULL : StringValuePtr(name); - + TypedData_Get_Struct(self, struct cfunc_data, &dlcfunc_data_type, data); if( data->name ) xfree(data->name); data->ptr = saddr; @@ -284,11 +284,11 @@ rb_dlcfunc_inspect(VALUE self) { VALUE val; char *str; - int str_size; + size_t str_size; struct cfunc_data *cfunc; - + TypedData_Get_Struct(self, struct cfunc_data, &dlcfunc_data_type, cfunc); - + str_size = (cfunc->name ? strlen(cfunc->name) : 0) + 100; str = ruby_xmalloc(str_size); snprintf(str, str_size - 1, @@ -339,22 +339,31 @@ rb_dlcfunc_call(VALUE self, VALUE ary) memset(stack, 0, sizeof(DLSTACK_TYPE) * DLSTACK_SIZE); Check_Type(ary, T_ARRAY); - + TypedData_Get_Struct(self, struct cfunc_data, &dlcfunc_data_type, cfunc); if( cfunc->ptr == 0 ){ rb_raise(rb_eDLError, "can't call null-function"); return Qnil; } - + + if( RARRAY_LEN(ary) >= DLSTACK_SIZE ){ + rb_raise(rb_eDLError, "too many arguments (stack overflow)"); + } for( i = 0; i < RARRAY_LEN(ary); i++ ){ - if( i >= DLSTACK_SIZE ){ - rb_raise(rb_eDLError, "too many arguments (stack overflow)"); + unsigned long rb_big2ulong_pack(VALUE x); + VALUE arg = RARRAY_PTR(ary)[i]; + + rb_check_safe_obj(arg); + if (FIXNUM_P(arg)) { + stack[i] = FIX2LONG(arg); + } + else { + Check_Type(arg, T_BIGNUM); + stack[i] = rb_big2ulong_pack(arg); } - rb_check_safe_obj(RARRAY_PTR(ary)[i]); - stack[i] = NUM2LONG(RARRAY_PTR(ary)[i]); } - + /* calltype == CFUNC_CDECL */ if( cfunc->calltype == CFUNC_CDECL #ifndef FUNC_STDCALL |