60478656fa
* elf/elf.h (AT_GID): Fix typo: Read -> Real. * misc/efgvt_r.c: New file. Reentrant version of [efg]cvt functions. * misc/efgcvt.c: Rewrite to use reentrant functions. * misc/hsearch_r.c: New file. Reentrant version of functions from hsearch family. * misc/hsearch.c, misc/tsearch.c: New files. * misc/Makefile (routines): Add efgcvt_r, hsearch_r, hsearch, tsearch. * posix/unistd.h (ttyname_r): Add prototype for new function. * stdlib/drand48_r.c, stdlib/erand48_r.c, stdlib/jrand48_r.c, stdlib/lrand48_r.c, stdlib/mrand48_r.c, stdlib/nrand48_r.c, stdlib/seed48_r.c, stdlib/srand48_r.c, stdlib/lcong48_r.c, stdlib/drand48-iter.c: New files implementing reentrant versions of functions from drand48 family. * stdlib/seed48.c, stdlib/drand48.c, stdlib/erand48.c, stdlib/jrand48.c, stdlib/lrand48.c, stdlib/mrand48.c, stdlib/nrand48.c, stdlib/srand48.c, stdlib/lcong48.c: Rewrite to use reentrant versions. * stdlib/a64l.c, stdlib/l64a.c: New files. Implement a64l() and l64a() functions from SysV library. * stdlib/Makefile (routines): Add drand48_r, erand48_r, lrand48_r, nrand48_r, mrand48_r, jrand48_r, srand48_r, seed48_r, lcong48_r, drand48-iter, a64l, l64a. * stdlib/stdlib.h: Declare them. * stdlib/random_r.c: New file. Reentrant version of functions from random family. * stdlib/stdlib.h: Declare them. * stdlib/random.c: Rewrite to use reentrant functions. * string/strerror_r.c: New file. Reentrant version. * string/strerror.c: Change for new _strerror_internal form. * string/Makefile (routines): Add strerror_r. * sysdeps/generic/dl-sysdep.c (_dl_sysdep_start): Set default value of user_entry to `_start'. Close AT_ENTRY case with `break'. * sysdeps/generic/strstr.c: New and much faster implementation by Stephen R. van den Berg. * sysdeps/generic/_strerror.c: _strerror_internal now takes three argument and has and explicit buffer length. * sysdeps/mach/_strerror.c: Change for new interface with three arguments. * stdio/perror.c, stdio/vfprintf.c: Callers changed. * sysdeps/mach/hurd/ttyname_r.c: New file. Reentrant version. * sysdeps/posix/ttyname_r.c: New file. Reentrant version. * sysdeps/stub/ttyname_r: New file. Define as dummy function. * sysdeps/posix/utimes.c: Include <utime.h> for prototype. (utimes): First parameter to utime must be file, not path. * sysdeps/posix/sysconf.c (__sysconf): Test for CLK_TCK in case _SC_CLK_TCK and return it when available. Test for STREAM_MAX in case _SC_STREAM_MAX and return it when available. Add case for _SC_2_LOCALEDEF which is now available. * posix/sys/types.h [__USE_SVID] (key_t): New type. * sysvipc/Makefile, sysvipc/ftok.c, sysvipc/sys/ipc.h, sysvipc/sys/msg.h, sysvipc/sys/sem.h, sysvipc/sys/shm.h, sysdeps/stub/sys/msq_buf.h, sysdeps/stub/sys/sem_buf.h, sysdeps/stub/sys/shm_buf.h, sysdeps/stub/sys/ipc_buf.h, sysdeps/stub/semctl.c, sysdeps/stub/semget.c, sysdeps/stub/semop.c, sysdeps/stub/shmat.c, sysdeps/stub/shmctl.c, sysdeps/stub/shmdt.c, sysdeps/stub/shmget.c, sysdeps/stub/msgctl.c, sysdeps/stub/msgget.c, sysdeps/stub/msgrcv.c, sysdeps/stub/msgsnd.c: New files. Add implementation of System V IPC.
103 lines
2.9 KiB
C
103 lines
2.9 KiB
C
/* Copyright (C) 1995 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
|
|
|
|
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 <errno.h>
|
|
#include <stdlib.h>
|
|
|
|
|
|
/* Global state for non-reentrent functions. */
|
|
struct drand48_data __libc_drand48_data;
|
|
|
|
|
|
int
|
|
__drand48_iterate (xsubi, buffer)
|
|
unsigned short int xsubi[3];
|
|
struct drand48_data *buffer;
|
|
{
|
|
/* Be generous for the arguments, detect some errors. */
|
|
if (xsubi == NULL || buffer == NULL)
|
|
{
|
|
errno = EFAULT;
|
|
return -1;
|
|
}
|
|
|
|
/* Initialize buffer, if not yet done. */
|
|
if (!buffer->init)
|
|
{
|
|
if (sizeof (unsigned short int) == 2)
|
|
{
|
|
buffer->a[2] = 0x5;
|
|
buffer->a[1] = 0xdeec;
|
|
buffer->a[0] = 0xe66d;
|
|
}
|
|
else
|
|
{
|
|
buffer->a[2] = 0x5deec;
|
|
buffer->a[1] = 0xe66d0000;
|
|
buffer->a[0] = 0;
|
|
}
|
|
buffer->c = 0xb;
|
|
buffer->init = 1;
|
|
}
|
|
|
|
/* Do the real work. We choose a data type which contains at least
|
|
48 bits. Because we compute the modulus it does not care how
|
|
many bits really are computed. */
|
|
|
|
if (sizeof (long int) >= 6)
|
|
{
|
|
/* The `long' data type is sufficent. */
|
|
unsigned long int X, a, result;
|
|
|
|
#define ONE_STEP \
|
|
if (sizeof (unsigned short int) == 2) \
|
|
{ \
|
|
X = (xsubi[2] << 16 | xsubi[1]) << 16 | xsubi[0]; \
|
|
a = (buffer->a[2] << 16 | buffer->a[1]) << 16 | buffer->a[0]; \
|
|
\
|
|
result = X * a + buffer->c; \
|
|
\
|
|
xsubi[0] = result & 0xffff; \
|
|
result >>= 16; \
|
|
xsubi[1] = result & 0xffff; \
|
|
result >>= 16; \
|
|
xsubi[2] = result & 0xffff; \
|
|
} \
|
|
else \
|
|
{ \
|
|
X = xsubi[2] << 16 | xsubi[1] >> 16; \
|
|
a = buffer->a[2] << 16 | buffer->a[1] >> 16; \
|
|
\
|
|
result = X * a + buffer->c; \
|
|
\
|
|
xsubi[0] = result >> 16 & 0xffffffffl; \
|
|
xsubi[1] = result << 16 & 0xffff0000l; \
|
|
}
|
|
ONE_STEP;
|
|
}
|
|
else
|
|
{
|
|
/* We have to use the `long long' data type. */
|
|
unsigned long long int X, a, result;
|
|
ONE_STEP;
|
|
}
|
|
|
|
return 0;
|
|
}
|