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authorJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
commit0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch)
tree2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /sysdeps/mach/hurd/getpeername.c
parent7d58530341304d403a6626d7f7a1913165fe2f32 (diff)
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2.5-18.1
Diffstat (limited to 'sysdeps/mach/hurd/getpeername.c')
-rw-r--r--sysdeps/mach/hurd/getpeername.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/sysdeps/mach/hurd/getpeername.c b/sysdeps/mach/hurd/getpeername.c
index 2e4f9f6a9d..325b6fd75d 100644
--- a/sysdeps/mach/hurd/getpeername.c
+++ b/sysdeps/mach/hurd/getpeername.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992, 1994, 1997, 1999, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1992,1994,1997,1999,2000,2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -47,14 +47,22 @@ __getpeername (int fd, __SOCKADDR_ARG addrarg, socklen_t *len)
if (*len > buflen)
*len = buflen;
-
+
if (buf != (char *) addr)
{
memcpy (addr, buf, *len);
__vm_deallocate (__mach_task_self (), (vm_address_t) buf, buflen);
}
- addr->sa_family = type;
+ const sa_family_t family = type;
+ if (*len > offsetof (struct sockaddr, sa_family))
+ {
+ if (*len < (char *) (&addr->sa_family + 1) - (char *) addr)
+ memcpy (&addr->sa_family, &family,
+ *len - offsetof (struct sockaddr, sa_family));
+ else
+ addr->sa_family = family;
+ }
return 0;
}