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ruby.h: safe_level check

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* include/ruby/ruby.h (RUBY_SAFE_LEVEL_CHECK): check constant safe
  level at compile time.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41273 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2013-06-13 05:51:14 +00:00
parent 0e76c14085
commit 3dbf227ed0
3 changed files with 20 additions and 1 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Thu Jun 13 14:51:06 2013 Nobuyoshi Nakada <nobu@ruby-lang.org>
* include/ruby/ruby.h (RUBY_SAFE_LEVEL_CHECK): check constant safe
level at compile time.
Thu Jun 13 14:39:08 2013 Shugo Maeda <shugo@ruby-lang.org> Thu Jun 13 14:39:08 2013 Shugo Maeda <shugo@ruby-lang.org>
* test/-ext-/test_printf.rb, test/rss/test_parser.rb, * test/-ext-/test_printf.rb, test/rss/test_parser.rb,

11
include/ruby/ruby.h
View file

@ -556,9 +556,20 @@ VALUE rb_get_path(VALUE);
VALUE rb_get_path_no_checksafe(VALUE); VALUE rb_get_path_no_checksafe(VALUE);
#define FilePathStringValue(v) ((v) = rb_get_path_no_checksafe(v)) #define FilePathStringValue(v) ((v) = rb_get_path_no_checksafe(v))
#define RUBY_SAFE_LEVEL_MAX 3
void rb_secure(int); void rb_secure(int);
int rb_safe_level(void); int rb_safe_level(void);
void rb_set_safe_level(int); void rb_set_safe_level(int);
#if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
int ruby$safe_level$4(void) __attribute__((error("$SAFE=4 is obsolete")));
#define RUBY_SAFE_LEVEL_INVALID_P(level) \
__extension__(__builtin_constant_p(level) && \
((level) < 0 || RUBY_SAFE_LEVEL_MAX < (level)))
#define RUBY_SAFE_LEVEL_CHECK(level) \
(RUBY_SAFE_LEVEL_INVALID_P(level) ? ruby$safe_level$4() : 0)
#define rb_secure(level) (RUBY_SAFE_LEVEL_CHECK(level), rb_secure(level))
#define rb_set_safe_level(level) (RUBY_SAFE_LEVEL_CHECK(level), rb_set_safe_level(level))
#endif
void rb_set_safe_level_force(int); void rb_set_safe_level_force(int);
void rb_secure_update(VALUE); void rb_secure_update(VALUE);
NORETURN(void rb_insecure_operation(void)); NORETURN(void rb_insecure_operation(void));

5
safe.c
View file

@ -16,13 +16,16 @@
3 - all generated objects are tainted 3 - all generated objects are tainted
*/ */
#define SAFE_LEVEL_MAX 3 #define SAFE_LEVEL_MAX RUBY_SAFE_LEVEL_MAX
#include "ruby/ruby.h" #include "ruby/ruby.h"
#include "vm_core.h" #include "vm_core.h"
/* $SAFE accessor */ /* $SAFE accessor */
#undef rb_secure
#undef rb_set_safe_level
int int
rb_safe_level(void) rb_safe_level(void)
{ {