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authorUlrich Drepper <drepper@redhat.com>1998-11-18 11:05:09 +0000
committerUlrich Drepper <drepper@redhat.com>1998-11-18 11:05:09 +0000
commit090ca0002ff8ee4ca425bc6088cc097f46c67626 (patch)
tree6d74050e9ba355a9d91de5251c9f854f8fce4098 /sunrpc/create_xid.c
parent45a9a50e68f58102e86b949527fd0c2bc0abf4ce (diff)
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Update.
1998-11-18 Ulrich Drepper <drepper@cygnus.com> * io/Makefile (CFLAGS-ftw.c): Removed. 1998-11-18 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * io/Makefile (tests): Make sure that the test program has an explicit directory part. 1998-11-18 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * configure.in: Fix last change. 1998-11-18 Thorsten Kukuk <kukuk@vt.uni-paderborn.de> * sunrpc/Makefile (routines): Add create_xid. * sunrpc/clnt_tcp.c: Use non-guessable xid. * sunrpc/clnt_udp.c: Likewise. * sunrpc/clnt_unix.c: Likewise. * sunrpc/pmap_rmt.c: Likewise. * sunrpc/create_xid.c: New, create non-guessable xid. * sunrpc/svc_tcp.c: Remove patch from 1998-06-15, use poll instead of select. * sunrpc/svc_unix.c: Use poll instead of select.
Diffstat (limited to 'sunrpc/create_xid.c')
-rw-r--r--sunrpc/create_xid.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/sunrpc/create_xid.c b/sunrpc/create_xid.c
new file mode 100644
index 0000000000..15fb367bca
--- /dev/null
+++ b/sunrpc/create_xid.c
@@ -0,0 +1,53 @@
+/* Copyright (c) 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1998.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <bits/libc-lock.h>
+
+/* The RPC code is not threadsafe, but new code should be threadsafe. */
+
+__libc_lock_define_initialized (static, createxid_lock)
+
+static int is_initialized;
+static struct drand48_data __rpc_lrand48_data;
+
+unsigned long
+_create_xid (void)
+{
+ unsigned long res;
+
+ __libc_lock_lock (createxid_lock);
+
+ if (!is_initialized)
+ {
+ struct timeval now;
+
+ __gettimeofday (&now, (struct timezone *) 0);
+ srand48_r (now.tv_sec ^ now.tv_usec, &__rpc_lrand48_data);
+ is_initialized = 1;
+ }
+
+ lrand48_r (&__rpc_lrand48_data, &res);
+
+ __libc_lock_unlock (createxid_lock);
+
+ return res;
+}