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author | Ulrich Drepper <drepper@redhat.com> | 1998-11-18 11:05:09 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1998-11-18 11:05:09 +0000 |
commit | 090ca0002ff8ee4ca425bc6088cc097f46c67626 (patch) | |
tree | 6d74050e9ba355a9d91de5251c9f854f8fce4098 /sunrpc/create_xid.c | |
parent | 45a9a50e68f58102e86b949527fd0c2bc0abf4ce (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.c | 53 |
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; +} |