forked from KolibriOS/kolibrios
Temporarily removing menuetlibc
git-svn-id: svn://kolibrios.org@4799 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
@@ -1,4 +0,0 @@
|
||||
THIS_SRCS = alloca.c cfree.c getlongp.c getpass.c itoa.c putenv.c \
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random.c swab.c xfree.c xmalloc.c xrealloc.c
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||||
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||||
include $(MENUET_LIBC_TOPDIR)/Make.rules
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||||
@@ -1,128 +0,0 @@
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||||
/* Copyright (C) 1996 DJ Delorie, see COPYING.DJ for details */
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||||
/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
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||||
/* alloca.c -- allocate automatically reclaimed memory
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||||
(Mostly) portable public-domain implementation -- D A Gwyn
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||||
|
||||
This implementation of the PWB library alloca function,
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||||
which is used to allocate space off the run-time stack so
|
||||
that it is automatically reclaimed upon procedure exit,
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||||
was inspired by discussions with J. Q. Johnson of Cornell.
|
||||
J.Otto Tennant <jot@cray.com> contributed the Cray support.
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||||
|
||||
There are some preprocessor constants that can
|
||||
be defined when compiling for your specific system, for
|
||||
improved efficiency; however, the defaults should be okay.
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||||
|
||||
The general concept of this implementation is to keep
|
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track of all alloca-allocated blocks, and reclaim any
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||||
that are found to be deeper in the stack than the current
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||||
invocation. This heuristic does not reclaim storage as
|
||||
soon as it becomes invalid, but it will do so eventually.
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||||
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||||
As a special case, alloca(0) reclaims storage without
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allocating any. It is a good idea to use alloca(0) in
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your main control loop, etc. to force garbage collection. */
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||||
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#include <stdlib.h>
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#ifdef alloca
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#undef alloca
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#endif
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||||
/* If your stack is a linked list of frames, you have to
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||||
provide an "address metric" ADDRESS_FUNCTION macro. */
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||||
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||||
#define ADDRESS_FUNCTION(arg) &(arg)
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||||
|
||||
#define NULL 0
|
||||
|
||||
/* Define STACK_DIRECTION if you know the direction of stack
|
||||
growth for your system; otherwise it will be automatically
|
||||
deduced at run-time.
|
||||
|
||||
STACK_DIRECTION > 0 => grows toward higher addresses
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||||
STACK_DIRECTION < 0 => grows toward lower addresses
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||||
STACK_DIRECTION = 0 => direction of growth unknown */
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||||
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#define STACK_DIRECTION -1
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||||
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#define STACK_DIR STACK_DIRECTION /* Known at compile-time. */
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||||
/* An "alloca header" is used to:
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(a) chain together all alloca'ed blocks;
|
||||
(b) keep track of stack depth.
|
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|
||||
It is very important that sizeof(header) agree with malloc
|
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alignment chunk size. The following default should work okay. */
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||||
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||||
#ifndef ALIGN_SIZE
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#define ALIGN_SIZE sizeof(double)
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||||
#endif
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typedef union hdr
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||||
{
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||||
char align[ALIGN_SIZE]; /* To force sizeof(header). */
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||||
struct
|
||||
{
|
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union hdr *next; /* For chaining headers. */
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char *deep; /* For stack depth measure. */
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} h;
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} header;
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static header *last_alloca_header = NULL; /* -> last alloca header. */
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/* Return a pointer to at least SIZE bytes of storage,
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which will be automatically reclaimed upon exit from
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the procedure that called alloca. Originally, this space
|
||||
was supposed to be taken from the current stack frame of the
|
||||
caller, but that method cannot be made to work for some
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implementations of C, for example under Gould's UTX/32. */
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void *
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alloca(size_t size)
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{
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char probe; /* Probes stack depth: */
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char *depth = &probe;
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|
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/* Reclaim garbage, defined as all alloca storage that
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was allocated from deeper in the stack than currently. */
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{
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header *hp; /* Traverses linked list. */
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for (hp = last_alloca_header; hp != NULL;)
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if ((STACK_DIR > 0 && hp->h.deep > depth)
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||||
|| (STACK_DIR < 0 && hp->h.deep < depth))
|
||||
{
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header *np = hp->h.next;
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free ((void *) hp); /* Collect garbage. */
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hp = np; /* -> next header. */
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}
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else
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break; /* Rest are not deeper. */
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last_alloca_header = hp; /* -> last valid storage. */
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}
|
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if (size == 0)
|
||||
return NULL; /* No allocation required. */
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||||
|
||||
/* Allocate combined header + user data storage. */
|
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|
||||
{
|
||||
void * newp = malloc (sizeof (header) + size);
|
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if (newp == 0)
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||||
abort();
|
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/* Address of header. */
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((header *) newp)->h.next = last_alloca_header;
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((header *) newp)->h.deep = depth;
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last_alloca_header = (header *) newp;
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||||
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/* User storage begins just after header. */
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return (void *) ((char *) newp + sizeof (header));
|
||||
}
|
||||
}
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@@ -1,8 +0,0 @@
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/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
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#include <stdlib.h>
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void
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cfree(void *_ptr)
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||||
{
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||||
free(_ptr);
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}
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@@ -1,58 +0,0 @@
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||||
/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
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#include <stdio.h>
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#include <stdlib.h>
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#include <pc.h>
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|
||||
int
|
||||
getlongpass(const char *prompt, char *password, int max_length)
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||||
{
|
||||
char *p = password;
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int c, count = 0;
|
||||
|
||||
fflush(stdout);
|
||||
/* If we can't prompt, abort */
|
||||
if (fputs(prompt, stderr) < 0)
|
||||
{
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||||
*p = '\0';
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||||
return -1;
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||||
}
|
||||
|
||||
while (1)
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{
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||||
/* Get a character with no echo */
|
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c = getkey();
|
||||
|
||||
/* Exit on interrupt (^c or ^break) */
|
||||
if (c == '\003' || c == 0x100)
|
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exit(1);
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||||
|
||||
/* Terminate on end of line or file (^j, ^m, ^d, ^z) */
|
||||
if (c == '\r' || c == '\n' || c == '\004' || c == '\032')
|
||||
break;
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||||
|
||||
/* Back up on backspace */
|
||||
if (c == '\b')
|
||||
{
|
||||
if (count)
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||||
count--;
|
||||
else if (p > password)
|
||||
p--;
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Ignore DOS extended characters */
|
||||
if ((c & 0xff) != c)
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||||
continue;
|
||||
|
||||
/* Add to password if it isn't full */
|
||||
if (p < password + max_length - 1)
|
||||
*p++ = c;
|
||||
else
|
||||
count++;
|
||||
}
|
||||
*p = '\0';
|
||||
|
||||
fputc('\n', stderr);
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||||
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return 0;
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||||
}
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||||
@@ -1,13 +0,0 @@
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||||
/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
|
||||
#include <stdlib.h>
|
||||
|
||||
char *
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||||
getpass(const char *prompt)
|
||||
{
|
||||
static char password_buffer[9];
|
||||
|
||||
if (getlongpass(prompt, password_buffer, 9) < 0)
|
||||
return 0;
|
||||
return password_buffer;
|
||||
}
|
||||
|
||||
@@ -1,46 +0,0 @@
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||||
/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
|
||||
#include <errno.h>
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||||
#include <stdlib.h>
|
||||
|
||||
char *
|
||||
itoa(int value, char *string, int radix)
|
||||
{
|
||||
char tmp[33];
|
||||
char *tp = tmp;
|
||||
int i;
|
||||
unsigned v;
|
||||
int sign;
|
||||
char *sp;
|
||||
|
||||
if (radix > 36 || radix <= 1)
|
||||
{
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||||
errno = EDOM;
|
||||
return 0;
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||||
}
|
||||
|
||||
sign = (radix == 10 && value < 0);
|
||||
if (sign)
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||||
v = -value;
|
||||
else
|
||||
v = (unsigned)value;
|
||||
while (v || tp == tmp)
|
||||
{
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||||
i = v % radix;
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||||
v = v / radix;
|
||||
if (i < 10)
|
||||
*tp++ = i+'0';
|
||||
else
|
||||
*tp++ = i + 'a' - 10;
|
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}
|
||||
|
||||
if (string == 0)
|
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string = (char *)malloc((tp-tmp)+sign+1);
|
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sp = string;
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||||
|
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if (sign)
|
||||
*sp++ = '-';
|
||||
while (tp > tmp)
|
||||
*sp++ = *--tp;
|
||||
*sp = 0;
|
||||
return string;
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||||
}
|
||||
@@ -1,11 +0,0 @@
|
||||
/* Copyright (C) 1996 DJ Delorie, see COPYING.DJ for details */
|
||||
/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
|
||||
#include <libc/stubs.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <libc/bss.h>
|
||||
|
||||
int putenv(const char *val)
|
||||
{
|
||||
return __libc_putenv(val);
|
||||
}
|
||||
@@ -1,365 +0,0 @@
|
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/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
|
||||
/* This is file RANDOM.C */
|
||||
/* This file may have been modified by DJ Delorie (Jan 1995). If so,
|
||||
** these modifications are Coyright (C) 1993 DJ Delorie, 24 Kirsten Ave,
|
||||
** Rochester NH, 03867-2954, USA.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Copyright (c) 1983 Regents of the University of California.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms are permitted
|
||||
* provided that: (1) source distributions retain this entire copyright
|
||||
* notice and comment, and (2) distributions including binaries display
|
||||
* the following acknowledgement: ``This product includes software
|
||||
* developed by the University of California, Berkeley and its contributors''
|
||||
* in the documentation or other materials provided with the distribution
|
||||
* and in all advertising materials mentioning features or use of this
|
||||
* software. Neither the name of the University nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
|
||||
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
|
||||
/*
|
||||
* random.c:
|
||||
* An improved random number generation package. In addition to the standard
|
||||
* rand()/srand() like interface, this package also has a special state info
|
||||
* interface. The initstate() routine is called with a seed, an array of
|
||||
* bytes, and a count of how many bytes are being passed in; this array is then
|
||||
* initialized to contain information for random number generation with that
|
||||
* much state information. Good sizes for the amount of state information are
|
||||
* 32, 64, 128, and 256 bytes. The state can be switched by calling the
|
||||
* setstate() routine with the same array as was initiallized with initstate().
|
||||
* By default, the package runs with 128 bytes of state information and
|
||||
* generates far better random numbers than a linear congruential generator.
|
||||
* If the amount of state information is less than 32 bytes, a simple linear
|
||||
* congruential R.N.G. is used.
|
||||
* Internally, the state information is treated as an array of longs; the
|
||||
* zeroeth element of the array is the type of R.N.G. being used (small
|
||||
* integer); the remainder of the array is the state information for the
|
||||
* R.N.G. Thus, 32 bytes of state information will give 7 longs worth of
|
||||
* state information, which will allow a degree seven polynomial. (Note: the
|
||||
* zeroeth word of state information also has some other information stored
|
||||
* in it -- see setstate() for details).
|
||||
* The random number generation technique is a linear feedback shift register
|
||||
* approach, employing trinomials (since there are fewer terms to sum up that
|
||||
* way). In this approach, the least significant bit of all the numbers in
|
||||
* the state table will act as a linear feedback shift register, and will have
|
||||
* period 2^deg - 1 (where deg is the degree of the polynomial being used,
|
||||
* assuming that the polynomial is irreducible and primitive). The higher
|
||||
* order bits will have longer periods, since their values are also influenced
|
||||
* by pseudo-random carries out of the lower bits. The total period of the
|
||||
* generator is approximately deg*(2**deg - 1); thus doubling the amount of
|
||||
* state information has a vast influence on the period of the generator.
|
||||
* Note: the deg*(2**deg - 1) is an approximation only good for large deg,
|
||||
* when the period of the shift register is the dominant factor. With deg
|
||||
* equal to seven, the period is actually much longer than the 7*(2**7 - 1)
|
||||
* predicted by this formula.
|
||||
*/
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* For each of the currently supported random number generators, we have a
|
||||
* break value on the amount of state information (you need at least this
|
||||
* many bytes of state info to support this random number generator), a degree
|
||||
* for the polynomial (actually a trinomial) that the R.N.G. is based on, and
|
||||
* the separation between the two lower order coefficients of the trinomial.
|
||||
*/
|
||||
|
||||
#define TYPE_0 0 /* linear congruential */
|
||||
#define BREAK_0 8
|
||||
#define DEG_0 0
|
||||
#define SEP_0 0
|
||||
|
||||
#define TYPE_1 1 /* x**7 + x**3 + 1 */
|
||||
#define BREAK_1 32
|
||||
#define DEG_1 7
|
||||
#define SEP_1 3
|
||||
|
||||
#define TYPE_2 2 /* x**15 + x + 1 */
|
||||
#define BREAK_2 64
|
||||
#define DEG_2 15
|
||||
#define SEP_2 1
|
||||
|
||||
#define TYPE_3 3 /* x**31 + x**3 + 1 */
|
||||
#define BREAK_3 128
|
||||
#define DEG_3 31
|
||||
#define SEP_3 3
|
||||
|
||||
#define TYPE_4 4 /* x**63 + x + 1 */
|
||||
#define BREAK_4 256
|
||||
#define DEG_4 63
|
||||
#define SEP_4 1
|
||||
|
||||
|
||||
/*
|
||||
* Array versions of the above information to make code run faster -- relies
|
||||
* on fact that TYPE_i == i.
|
||||
*/
|
||||
|
||||
#define MAX_TYPES 5 /* max number of types above */
|
||||
static int degrees[MAX_TYPES] = { DEG_0, DEG_1, DEG_2, DEG_3, DEG_4 };
|
||||
static int seps[MAX_TYPES] = { SEP_0, SEP_1, SEP_2, SEP_3, SEP_4 };
|
||||
|
||||
/*
|
||||
* Initially, everything is set up as if from :
|
||||
* initstate( 1, &randtbl, 128 );
|
||||
* Note that this initialization takes advantage of the fact that srandom()
|
||||
* advances the front and rear pointers 10*rand_deg times, and hence the
|
||||
* rear pointer which starts at 0 will also end up at zero; thus the zeroeth
|
||||
* element of the state information, which contains info about the current
|
||||
* position of the rear pointer is just
|
||||
* MAX_TYPES*(rptr - state) + TYPE_3 == TYPE_3.
|
||||
*/
|
||||
|
||||
static unsigned long randtbl[DEG_3 + 1] = { TYPE_3,
|
||||
0x9a319039U, 0x32d9c024U, 0x9b663182U, 0x5da1f342U,
|
||||
0xde3b81e0U, 0xdf0a6fb5U, 0xf103bc02U, 0x48f340fbU,
|
||||
0x7449e56bU, 0xbeb1dbb0U, 0xab5c5918U, 0x946554fdU,
|
||||
0x8c2e680fU, 0xeb3d799fU, 0xb11ee0b7U, 0x2d436b86U,
|
||||
0xda672e2aU, 0x1588ca88U, 0xe369735dU, 0x904f35f7U,
|
||||
0xd7158fd6U, 0x6fa6f051U, 0x616e6b96U, 0xac94efdcU,
|
||||
0x36413f93U, 0xc622c298U, 0xf5a42ab8U, 0x8a88d77bU,
|
||||
0xf5ad9d0eU, 0x8999220bU, 0x27fb47b9U };
|
||||
|
||||
/*
|
||||
* fptr and rptr are two pointers into the state info, a front and a rear
|
||||
* pointer. These two pointers are always rand_sep places aparts, as they cycle
|
||||
* cyclically through the state information. (Yes, this does mean we could get
|
||||
* away with just one pointer, but the code for random() is more efficient this
|
||||
* way). The pointers are left positioned as they would be from the call
|
||||
* initstate( 1, randtbl, 128 )
|
||||
* (The position of the rear pointer, rptr, is really 0 (as explained above
|
||||
* in the initialization of randtbl) because the state table pointer is set
|
||||
* to point to randtbl[1] (as explained below).
|
||||
*/
|
||||
|
||||
static long *fptr = &randtbl[ SEP_3 + 1 ];
|
||||
static long *rptr = &randtbl[ 1 ];
|
||||
|
||||
/*
|
||||
* The following things are the pointer to the state information table,
|
||||
* the type of the current generator, the degree of the current polynomial
|
||||
* being used, and the separation between the two pointers.
|
||||
* Note that for efficiency of random(), we remember the first location of
|
||||
* the state information, not the zeroeth. Hence it is valid to access
|
||||
* state[-1], which is used to store the type of the R.N.G.
|
||||
* Also, we remember the last location, since this is more efficient than
|
||||
* indexing every time to find the address of the last element to see if
|
||||
* the front and rear pointers have wrapped.
|
||||
*/
|
||||
|
||||
static long *state = &randtbl[ 1 ];
|
||||
static int rand_type = TYPE_3;
|
||||
static int rand_deg = DEG_3;
|
||||
static int rand_sep = SEP_3;
|
||||
static long *end_ptr = &randtbl[ DEG_3 + 1 ];
|
||||
|
||||
/*
|
||||
* srandom:
|
||||
* Initialize the random number generator based on the given seed. If the
|
||||
* type is the trivial no-state-information type, just remember the seed.
|
||||
* Otherwise, initializes state[] based on the given "seed" via a linear
|
||||
* congruential generator. Then, the pointers are set to known locations
|
||||
* that are exactly rand_sep places apart. Lastly, it cycles the state
|
||||
* information a given number of times to get rid of any initial dependencies
|
||||
* introduced by the L.C.R.N.G.
|
||||
* Note that the initialization of randtbl[] for default usage relies on
|
||||
* values produced by this routine.
|
||||
*/
|
||||
|
||||
int
|
||||
srandom(int x)
|
||||
{
|
||||
int i, j;
|
||||
|
||||
if (rand_type == TYPE_0)
|
||||
{
|
||||
state[ 0 ] = x;
|
||||
}
|
||||
else
|
||||
{
|
||||
j = 1;
|
||||
state[ 0 ] = x;
|
||||
for (i = 1; i < rand_deg; i++)
|
||||
{
|
||||
state[i] = 1103515245*state[i - 1] + 12345;
|
||||
}
|
||||
fptr = &state[rand_sep];
|
||||
rptr = &state[0];
|
||||
for( i = 0; i < 10*rand_deg; i++ )
|
||||
random();
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* initstate:
|
||||
* Initialize the state information in the given array of n bytes for
|
||||
* future random number generation. Based on the number of bytes we
|
||||
* are given, and the break values for the different R.N.G.'s, we choose
|
||||
* the best (largest) one we can and set things up for it. srandom() is
|
||||
* then called to initialize the state information.
|
||||
* Note that on return from srandom(), we set state[-1] to be the type
|
||||
* multiplexed with the current value of the rear pointer; this is so
|
||||
* successive calls to initstate() won't lose this information and will
|
||||
* be able to restart with setstate().
|
||||
* Note: the first thing we do is save the current state, if any, just like
|
||||
* setstate() so that it doesn't matter when initstate is called.
|
||||
* Returns a pointer to the old state.
|
||||
*/
|
||||
|
||||
char *
|
||||
initstate (unsigned seed, char *arg_state, int n)
|
||||
{
|
||||
char *ostate = (char *)(&state[ -1 ]);
|
||||
|
||||
if (rand_type == TYPE_0)
|
||||
state[-1] = rand_type;
|
||||
else
|
||||
state[-1] = MAX_TYPES * (rptr - state) + rand_type;
|
||||
if (n < BREAK_1)
|
||||
{
|
||||
if (n < BREAK_0)
|
||||
return 0;
|
||||
rand_type = TYPE_0;
|
||||
rand_deg = DEG_0;
|
||||
rand_sep = SEP_0;
|
||||
}
|
||||
else
|
||||
{
|
||||
if (n < BREAK_2)
|
||||
{
|
||||
rand_type = TYPE_1;
|
||||
rand_deg = DEG_1;
|
||||
rand_sep = SEP_1;
|
||||
}
|
||||
else
|
||||
{
|
||||
if (n < BREAK_3)
|
||||
{
|
||||
rand_type = TYPE_2;
|
||||
rand_deg = DEG_2;
|
||||
rand_sep = SEP_2;
|
||||
}
|
||||
else
|
||||
{
|
||||
if (n < BREAK_4)
|
||||
{
|
||||
rand_type = TYPE_3;
|
||||
rand_deg = DEG_3;
|
||||
rand_sep = SEP_3;
|
||||
}
|
||||
else
|
||||
{
|
||||
rand_type = TYPE_4;
|
||||
rand_deg = DEG_4;
|
||||
rand_sep = SEP_4;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
state = &(((long *)arg_state)[1]); /* first location */
|
||||
end_ptr = &state[rand_deg]; /* must set end_ptr before srandom */
|
||||
srandom(seed);
|
||||
if (rand_type == TYPE_0)
|
||||
state[-1] = rand_type;
|
||||
else
|
||||
state[-1] = MAX_TYPES * (rptr - state) + rand_type;
|
||||
return ostate;
|
||||
}
|
||||
|
||||
/*
|
||||
* setstate:
|
||||
* Restore the state from the given state array.
|
||||
* Note: it is important that we also remember the locations of the pointers
|
||||
* in the current state information, and restore the locations of the pointers
|
||||
* from the old state information. This is done by multiplexing the pointer
|
||||
* location into the zeroeth word of the state information.
|
||||
* Note that due to the order in which things are done, it is OK to call
|
||||
* setstate() with the same state as the current state.
|
||||
* Returns a pointer to the old state information.
|
||||
*/
|
||||
|
||||
char *
|
||||
setstate(char *arg_state)
|
||||
{
|
||||
long *new_state = (long *)arg_state;
|
||||
int type = new_state[0]%MAX_TYPES;
|
||||
int rear = new_state[0]/MAX_TYPES;
|
||||
char *ostate = (char *)( &state[ -1 ] );
|
||||
|
||||
if (rand_type == TYPE_0)
|
||||
state[-1] = rand_type;
|
||||
else
|
||||
state[-1] = MAX_TYPES * (rptr - state) + rand_type;
|
||||
switch (type)
|
||||
{
|
||||
case TYPE_0:
|
||||
case TYPE_1:
|
||||
case TYPE_2:
|
||||
case TYPE_3:
|
||||
case TYPE_4:
|
||||
rand_type = type;
|
||||
rand_deg = degrees[ type ];
|
||||
rand_sep = seps[ type ];
|
||||
break;
|
||||
}
|
||||
state = &new_state[ 1 ];
|
||||
if (rand_type != TYPE_0)
|
||||
{
|
||||
rptr = &state[rear];
|
||||
fptr = &state[(rear + rand_sep)%rand_deg];
|
||||
}
|
||||
end_ptr = &state[rand_deg]; /* set end_ptr too */
|
||||
return ostate;
|
||||
}
|
||||
|
||||
/*
|
||||
* random:
|
||||
* If we are using the trivial TYPE_0 R.N.G., just do the old linear
|
||||
* congruential bit. Otherwise, we do our fancy trinomial stuff, which is the
|
||||
* same in all ther other cases due to all the global variables that have been
|
||||
* set up. The basic operation is to add the number at the rear pointer into
|
||||
* the one at the front pointer. Then both pointers are advanced to the next
|
||||
* location cyclically in the table. The value returned is the sum generated,
|
||||
* reduced to 31 bits by throwing away the "least random" low bit.
|
||||
* Note: the code takes advantage of the fact that both the front and
|
||||
* rear pointers can't wrap on the same call by not testing the rear
|
||||
* pointer if the front one has wrapped.
|
||||
* Returns a 31-bit random number.
|
||||
*/
|
||||
|
||||
long
|
||||
random(void)
|
||||
{
|
||||
long i;
|
||||
|
||||
if (rand_type == TYPE_0)
|
||||
{
|
||||
i = state[0] = ( state[0]*1103515245 + 12345 )&0x7fffffff;
|
||||
}
|
||||
else
|
||||
{
|
||||
*fptr += *rptr;
|
||||
i = (*fptr >> 1)&0x7fffffff; /* chucking least random bit */
|
||||
if (++fptr >= end_ptr )
|
||||
{
|
||||
fptr = state;
|
||||
++rptr;
|
||||
}
|
||||
else
|
||||
{
|
||||
if (++rptr >= end_ptr)
|
||||
rptr = state;
|
||||
}
|
||||
}
|
||||
return i;
|
||||
}
|
||||
@@ -1,21 +0,0 @@
|
||||
/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
|
||||
#include <stdlib.h>
|
||||
|
||||
void
|
||||
swab(const void *from, void *to, int n)
|
||||
{
|
||||
unsigned long temp;
|
||||
const char* fromc = from;
|
||||
char* toc = to;
|
||||
|
||||
n >>= 1; n++;
|
||||
#define STEP temp = *fromc++,*toc++ = *fromc++,*toc++ = temp
|
||||
/* round to multiple of 8 */
|
||||
while ((--n) & 07)
|
||||
STEP;
|
||||
n >>= 3;
|
||||
while (--n >= 0) {
|
||||
STEP; STEP; STEP; STEP;
|
||||
STEP; STEP; STEP; STEP;
|
||||
}
|
||||
}
|
||||
@@ -1,10 +0,0 @@
|
||||
/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
|
||||
#include <stdlib.h>
|
||||
|
||||
void xfree(void *_ptr);
|
||||
void
|
||||
xfree(void *_ptr)
|
||||
{
|
||||
if (_ptr)
|
||||
free(_ptr);
|
||||
}
|
||||
@@ -1,19 +0,0 @@
|
||||
/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
|
||||
#include <stdlib.h>
|
||||
#include <io.h>
|
||||
#include <unistd.h>
|
||||
|
||||
static char msg[] = "Fatal: malloc returned NULL\r\n";
|
||||
|
||||
void * xmalloc(size_t _sz);
|
||||
void *
|
||||
xmalloc(size_t _sz)
|
||||
{
|
||||
void *rv = malloc(_sz?_sz:1);
|
||||
if (rv == 0)
|
||||
{
|
||||
__libclog_printf(msg);
|
||||
_exit(1);
|
||||
}
|
||||
return rv;
|
||||
}
|
||||
@@ -1,26 +0,0 @@
|
||||
/* Copyright (C) 1996 DJ Delorie, see COPYING.DJ for details */
|
||||
/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
|
||||
#include <stdlib.h>
|
||||
#include <io.h>
|
||||
#include <unistd.h>
|
||||
|
||||
static char msg[] = "Fatal: xrealloc would have returned NULL\r\n";
|
||||
|
||||
void * xrealloc(void *ptr, size_t _sz);
|
||||
void *
|
||||
xrealloc(void *ptr, size_t _sz)
|
||||
{
|
||||
void *rv;
|
||||
|
||||
if (ptr == 0)
|
||||
rv = malloc(_sz?_sz:1);
|
||||
else
|
||||
rv = realloc(ptr, _sz?_sz:1);
|
||||
|
||||
if (rv == 0)
|
||||
{
|
||||
__libclog_printf(msg);
|
||||
_exit(1);
|
||||
}
|
||||
return rv;
|
||||
}
|
||||
Reference in New Issue
Block a user