mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-21 11:13:30 +00:00
88 lines
2.3 KiB
C
88 lines
2.3 KiB
C
/*
|
|
* Copyright (c) 1999 Global Technology Associates, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
|
|
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
|
|
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
|
|
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
|
|
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
|
|
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <stddef.h>
|
|
|
|
#include "kgzldr.h"
|
|
|
|
#define MEMSIZ 0x8000 /* Memory pool size */
|
|
|
|
int kgz_con; /* Console control */
|
|
|
|
static size_t memtot; /* Memory allocated: bytes */
|
|
static u_int memcnt; /* Memory allocated: blocks */
|
|
|
|
/*
|
|
* Library functions required by inflate().
|
|
*/
|
|
|
|
/*
|
|
* Allocate memory block.
|
|
*/
|
|
unsigned char *
|
|
kzipmalloc(int size)
|
|
{
|
|
static u_char mem[MEMSIZ];
|
|
void *ptr;
|
|
|
|
if (memtot + size > MEMSIZ)
|
|
return NULL;
|
|
ptr = mem + memtot;
|
|
memtot += size;
|
|
memcnt++;
|
|
return ptr;
|
|
}
|
|
|
|
/*
|
|
* Free allocated memory block.
|
|
*/
|
|
void
|
|
kzipfree(void *ptr)
|
|
{
|
|
memcnt--;
|
|
if (!memcnt)
|
|
memtot = 0;
|
|
}
|
|
|
|
/*
|
|
* Write a string to the console.
|
|
*/
|
|
void
|
|
putstr(const char *str)
|
|
{
|
|
int c;
|
|
|
|
while ((c = *str++)) {
|
|
if (kgz_con & KGZ_CRT)
|
|
crt_putchr(c);
|
|
if (kgz_con & KGZ_SIO)
|
|
sio_putchr(c);
|
|
}
|
|
}
|