Hurd: sendto: do not crash when ADDR is null

Create a new create_address_port subroutine to isolate the address port creation
(for both local and remove sockets), and use it inside HURD_DPORT_USE.
Also intialize APORT to MACH_PORT_NULL and make sure to always deallocate it,
when not null.

1 files changed, 6 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index cb1dfaf108..03baa697ef 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2012-07-20  Pino Toscano  <toscano.pino@tiscali.it>
+
+	* sysdeps/mach/hurd/sendto.c (create_address_port): New subroutine.
+	(__sendto): Use create_address_port.  Initialize APORT and deallocate
+	it if not null.
+
 2012-07-20  Joseph Myers  <joseph@codesourcery.com>
 
 	* elf/Makefile (check-data): Remove.