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authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2017-12-31 13:01:55 (GMT)
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2017-12-31 13:01:55 (GMT)
commitfa2e4a2061e140ce980bd2c8faef0d63bb408100 (patch)
tree07ad6a1e2089d846866e9ae5d1f71c16bc3f4be6 /error.c
parentd0afbff3b047755f6a74446185cf08b5618387a0 (diff)
error.c: negative uplevel
* error.c (rb_warn_m): negative uplevel is not allowed. [ruby-core:84568] [Bug #14262] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61525 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'error.c')
-rw-r--r--error.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/error.c b/error.c
index 2109936..7ec59cd 100644
--- a/error.c
+++ b/error.c
@@ -342,7 +342,11 @@ rb_warn_m(int argc, VALUE *argv, VALUE exc)
uplevel = Qnil;
}
else if (!NIL_P(uplevel)) {
- uplevel = LONG2NUM((long)NUM2ULONG(uplevel) + 1);
+ long lev = NUM2LONG(uplevel);
+ if (lev < 0) {
+ rb_raise(rb_eArgError, "negative level (%ld)", lev);
+ }
+ uplevel = LONG2NUM(lev + 1);
uplevel = rb_vm_thread_backtrace_locations(1, &uplevel, GET_THREAD()->self);
if (!NIL_P(uplevel)) {
uplevel = rb_ary_entry(uplevel, 0);