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commit a194625ef31f0c33afae9b53e2dfaa17c2517606
Author: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Tue Aug 9 01:42:50 2016 +0200
Fix recvmsg returning SIGLOST on PF_LOCAL sockets
when msg_name is not NULL.
* sysdeps/mach/hurd/recvmsg.c (__libc_recvmsg): Cope with aport being
MACH_PORT_NULL.
diff --git a/sysdeps/mach/hurd/recvmsg.c b/sysdeps/mach/hurd/recvmsg.c
index 770a42e..51cfbd7 100644
--- a/sysdeps/mach/hurd/recvmsg.c
+++ b/sysdeps/mach/hurd/recvmsg.c
@@ -64,7 +64,7 @@ __libc_recvmsg (int fd, struct msghdr *message, int flags)
&message->msg_flags, amount)))
return __hurd_sockfail (fd, flags, err);
- if (message->msg_name != NULL)
+ if (message->msg_name != NULL && aport != MACH_PORT_NULL)
{
char *buf = message->msg_name;
mach_msg_type_number_t buflen = message->msg_namelen;
@@ -98,6 +98,8 @@ __libc_recvmsg (int fd, struct msghdr *message, int flags)
if (buflen > 0)
((struct sockaddr *) message->msg_name)->sa_family = type;
}
+ else if (message->msg_name != NULL)
+ message->msg_namelen = 0;
__mach_port_deallocate (__mach_task_self (), aport);
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