diff options
author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2007-07-12 08:03:18 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2007-07-12 08:03:18 +0000 |
commit | 420a5fe48efdde608671395bd4eb7583a60d38ef (patch) | |
tree | 76dcbcae2108edd7a1d97cf7d6a478451896aca9 /struct.c | |
parent | d7e32900ccde0a07e9912f04595e85795114dde8 (diff) |
* struct.c (rb_struct_init_copy): disallow changing the size.
[ruby-dev:31168]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@12742 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'struct.c')
-rw-r--r-- | struct.c | 7 |
1 files changed, 4 insertions, 3 deletions
@@ -252,7 +252,7 @@ rb_struct_define(name, va_alist) ary = rb_ary_new(); va_init_list(ar, name); - while (mem = va_arg(ar, char*)) { + while ((mem = va_arg(ar, char*)) != 0) { ID slot = rb_intern(mem); rb_ary_push(ary, ID2SYM(slot)); } @@ -557,8 +557,9 @@ rb_struct_init_copy(copy, s) if (!rb_obj_is_instance_of(s, rb_obj_class(copy))) { rb_raise(rb_eTypeError, "wrong argument class"); } - RSTRUCT(copy)->ptr = ALLOC_N(VALUE, RSTRUCT(s)->len); - RSTRUCT(copy)->len = RSTRUCT(s)->len; + if (RSTRUCT(copy)->len != RSTRUCT(s)->len) { + rb_raise(rb_eTypeError, "struct size mismatch"); + } MEMCPY(RSTRUCT(copy)->ptr, RSTRUCT(s)->ptr, VALUE, RSTRUCT(copy)->len); return copy; |