Mercurial > dropbear
diff svr-chansession.c @ 893:860e3522f8fc
- Save errno in signal handlers
- Use _exit() in segv handler
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Sat, 15 Feb 2014 21:13:57 +0800 |
| parents | aa689d140928 |
| children | 5daedffd0769 |
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--- a/svr-chansession.c Fri Feb 14 23:18:45 2014 +0800 +++ b/svr-chansession.c Sat Feb 15 21:13:57 2014 +0800 @@ -87,6 +87,8 @@ struct sigaction sa_chld; struct exitinfo *exit = NULL; + const int saved_errno = errno; + TRACE(("enter sigchld handler")) while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { TRACE(("sigchld handler: pid %d", pid)) @@ -140,6 +142,8 @@ sigemptyset(&sa_chld.sa_mask); sigaction(SIGCHLD, &sa_chld, NULL); TRACE(("leave sigchld handler")) + + errno = saved_errno; } /* send the exit status or the signal causing termination for a session */