diff options
| author | Theo de Raadt <deraadt@cvs.openbsd.org> | 2011-06-03 06:52:38 +0000 |
|---|---|---|
| committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 2011-06-03 06:52:38 +0000 |
| commit | e9228802a977c5de4f37de259912585f0b97d791 (patch) | |
| tree | c2e8d0b235ba9b0cbcc0a22e5e97e785660938f9 | |
| parent | d0623598b772776507659254cf9b94adee6d9f4e (diff) | |
protect errno from damage in the signal handler
ok otto
| -rw-r--r-- | usr.bin/bc/bc.y | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/usr.bin/bc/bc.y b/usr.bin/bc/bc.y index b1ee4e467df..cd27e1720af 100644 --- a/usr.bin/bc/bc.y +++ b/usr.bin/bc/bc.y @@ -1,5 +1,5 @@ %{ -/* $OpenBSD: bc.y,v 1.36 2011/06/03 06:10:31 otto Exp $ */ +/* $OpenBSD: bc.y,v 1.37 2011/06/03 06:52:37 deraadt Exp $ */ /* * Copyright (c) 2003, Otto Moerbeek <otto@drijf.net> @@ -1058,7 +1058,7 @@ void sigchld(int signo) { pid_t pid; - int status; + int status, save_errno = errno; for (;;) { pid = waitpid(dc, &status, WCONTINUED); @@ -1072,6 +1072,7 @@ sigchld(int signo) else break; } + errno = save_errno; } static const char * |