diff options
Diffstat (limited to 'safe.c')
| -rw-r--r-- | safe.c | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/safe.c b/safe.c deleted file mode 100644 index 3575ecca15..0000000000 --- a/safe.c +++ /dev/null @@ -1,139 +0,0 @@ -/********************************************************************** - - safe.c - - - $Author$ - created at: Tue Sep 23 09:44:32 JST 2008 - - Copyright (C) 2008 Yukihiro Matsumoto - -**********************************************************************/ - -/* safe-level: - 0 - strings from streams/environment/ARGV are tainted (default) - 1 - no dangerous operation by tainted value -*/ - -#define SAFE_LEVEL_MAX RUBY_SAFE_LEVEL_MAX - -#include "ruby/ruby.h" -#include "vm_core.h" - -/* $SAFE accessor */ - -#undef rb_secure -#undef rb_set_safe_level -#undef ruby_safe_level_2_warning - -int -ruby_safe_level_2_warning(void) -{ - return 2; -} - -int -rb_safe_level(void) -{ - return GET_EC()->safe_level; -} - -void -rb_set_safe_level_force(int safe) -{ - GET_EC()->safe_level = safe; -} - -void -rb_set_safe_level(int level) -{ - rb_execution_context_t *ec = GET_EC(); - - if (level > ec->safe_level) { - if (level > SAFE_LEVEL_MAX) { - rb_raise(rb_eArgError, "$SAFE=2 to 4 are obsolete"); - } - /* block parameters */ - rb_vm_stack_to_heap(ec); - - ec->safe_level = level; - } -} - -static VALUE -safe_getter(void) -{ - return INT2NUM(rb_safe_level()); -} - -static void -safe_setter(VALUE val) -{ - rb_execution_context_t *ec = GET_EC(); - int current_level = ec->safe_level; - int level = NUM2INT(val); - - if (level == current_level) { - return; - } - else if (level < current_level) { - rb_raise(rb_eSecurityError, - "tried to downgrade safe level from %d to %d", - current_level, level); - } - else if (level > SAFE_LEVEL_MAX) { - rb_raise(rb_eArgError, "$SAFE=2 to 4 are obsolete"); - } - - /* block parameters */ - rb_vm_stack_to_heap(ec); - - ec->safe_level = level; -} - -void -rb_secure(int level) -{ - if (level <= rb_safe_level()) { - ID caller_name = rb_frame_callee(); - if (caller_name) { - rb_raise(rb_eSecurityError, "Insecure operation `%"PRIsVALUE"' at level %d", - rb_id2str(caller_name), rb_safe_level()); - } - else { - rb_raise(rb_eSecurityError, "Insecure operation at level %d", - rb_safe_level()); - } - } -} - -void -rb_secure_update(VALUE obj) -{ -} - -void -rb_insecure_operation(void) -{ - ID caller_name = rb_frame_callee(); - if (caller_name) { - rb_raise(rb_eSecurityError, "Insecure operation - %"PRIsVALUE, - rb_id2str(caller_name)); - } - else { - rb_raise(rb_eSecurityError, "Insecure operation: -r"); - } -} - -void -rb_check_safe_obj(VALUE x) -{ - if (rb_safe_level() > 0 && OBJ_TAINTED(x)) { - rb_insecure_operation(); - } -} - -void -Init_safe(void) -{ - rb_define_virtual_variable("$SAFE", safe_getter, safe_setter); -} |
