glibc/string/strfry.c
Ulrich Drepper 4770745624 update from main archive 961203
Tue Dec  3 08:38:15 1996  Richard Henderson  <rth@tamu.edu>

	* sysdeps/unix/alpha/sysdep.S: Remove definition of __errno_location.
	Reformat copyright.

	* elf/rtld.c (_dl_start): Don't dereference the value returned by
	elf_machine_got to get _DYNAMIC, instead call new function
	elf_machine_dynamic.
	* sysdeps/alpha/dl-machine.h: Permute elf_machine_got to
	elf_machine_dynamic.  Reformat copyright.
	* sysdeps/i386/dl-machine.h: Likewise.
	* sysdeps/m68k/dl-machine.h: Likewise.
	* sysdeps/mips/dl-machine.h: Likewise.
	* sysdeps/sparc/dl-machine.h: Likewise.
	* sysdeps/stub/dl-machine.h: Likewise.

Tue Oct 15 23:46:00 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* MakeTAGS (sysdep_dirs): Include add-on sysdep directories.

Tue Dec  3 02:06:18 1996  Ulrich Drepper  <drepper@cygnus.com>

	* Makerules ($(libdir)/libc.so): Make first line of generated
	link script contain `/* GNU ld script'.  This will be used in
	ldconfig to check for linker scripts.
	* sysdeps/mach/hurd/libc-ldscript: Likewise.
	* sysdeps/mach/hurd/libc_p-ldscript: Likewise.

	* stdlib/getsubopt.c: Update copyright.  Correct typo in comment.
1996-12-04 01:41:39 +00:00

54 lines
1.4 KiB
C

/* Copyright (C) 1992, 1996 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
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 <string.h>
#include <stdlib.h>
#include <time.h>
char *
strfry (char *string)
{
static int init = 0;
static struct random_data rdata;
size_t len, i;
if (!init)
{
static int state[8] = { 1, 2, 3, 4, 5, 6, 7, 8 };
rdata.state = NULL;
__initstate_r (time ((time_t *) NULL), state, 8, &rdata);
init = 1;
}
len = strlen (string);
for (i = 0; i < len; ++i)
{
int32_t j;
char c;
__random_r (&rdata, &j);
j %= len;
c = string[i];
string[i] = string[j];
string[j] = c;
}
return string;
}