sneedmc/depends/pack200/src/utils.cpp

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/*
* Copyright (c) 2001, 2008, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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 General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <assert.h>
#include <sys/stat.h>
#ifdef _MSC_VER
#include <direct.h>
#include <io.h>
#include <process.h>
#else
#include <unistd.h>
#endif
#include "constants.h"
#include "defines.h"
#include "bytes.h"
#include "utils.h"
#include "unpack.h"
void *must_malloc(size_t size)
{
size_t msize = size;
void *ptr = (msize > PSIZE_MAX) ? nullptr : malloc(msize);
if (ptr != nullptr)
{
memset(ptr, 0, size);
}
else
{
unpack_abort(ERROR_ENOMEM);
}
return ptr;
}
void unpack_abort(const char *msg, unpacker *u)
{
if (msg == nullptr)
msg = "corrupt pack file or internal error";
if (u == nullptr)
u = unpacker::current();
if (u == nullptr)
{
fprintf(stderr, "Error: unpacker: %s\n", msg);
::abort();
return;
}
u->abort(msg);
}
bool unpack_aborting(unpacker *u)
{
if (u == nullptr)
u = unpacker::current();
if (u == nullptr)
{
fprintf(stderr, "Error: unpacker: no current instance\n");
::abort();
return true;
}
return u->aborting();
}