Project

General

Profile

Bug #9878

Updated by nobu (Nobuyoshi Nakada) about 6 years ago

`ruby_signal()` `ruby_signa()` in signal.c returns `old.sa_handler`, old.sa_handler, 
 but it should return either `old.sa_sigaction` old.sa_sigaction or `old.sa_handler`, old.sa_handler, 
 depending on whether `SA_SIGINFO` SA_SIGINFO is set in `old.sa_flags`. old.sa_flags. 

 ~~~diff ~~~ 
 --- signal.c      (revision 46222) 
 +++ signal.c      (working copy) 
 @@ -595,7 +595,10 @@ 
             rb_bug_errno("sigaction", errno); 
         } 
      } 
 -      return old.sa_handler; 
 +      if (old.sa_flags & SA_SIGINFO) 
 +         return (sighandler_t)old.sa_sigaction; 
 +      else 
 +         return old.sa_handler; 
  } 
 
  sighandler_t 
 ~~~ 

 The original code happens to be correct on the environments 
 where `sa_handler` sa_handler and `sa_sigaction` sa_sigaction are union, but it is not 
 guaranteed in general. 

 (Actually, they are not union on z/OS.)

Back