You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
24 lines
739 B
24 lines
739 B
2016-06-01 Jakub Jelinek <jakub@redhat.com>
|
|
|
|
Backported from mainline
|
|
2015-10-02 Jonathan Wakely <jwakely@redhat.com>
|
|
|
|
PR libstdc++/65142
|
|
* src/c++11/random.cc (random_device::_M_getval()): Check read result.
|
|
|
|
--- libstdc++-v3/src/c++11/random.cc (revision 228423)
|
|
+++ libstdc++-v3/src/c++11/random.cc (revision 228424)
|
|
@@ -126,8 +126,10 @@ namespace std _GLIBCXX_VISIBILITY(defaul
|
|
#endif
|
|
|
|
result_type __ret;
|
|
- std::fread(reinterpret_cast<void*>(&__ret), sizeof(result_type),
|
|
- 1, _M_file);
|
|
+ const size_t e = std::fread(reinterpret_cast<void*>(&__ret),
|
|
+ sizeof(result_type), 1, _M_file);
|
|
+ if (e != 1)
|
|
+ std::__throw_runtime_error(__N("random_device could not be read"));
|
|
return __ret;
|
|
}
|
|
|