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Adding upstream version 0.3.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-02-17 22:46:39 +01:00
parent 8e74e28076
commit 08fc35fa34
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
23 changed files with 4448 additions and 0 deletions
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100
decompress_lunzip.c Normal file
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/*
* Wrapper for decompressing LZIP-compressed kernel, initramfs, and initrd
*
* Copyright (C) 2016-2018 Antonio Diaz Diaz.
*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
#ifdef STATIC
#define PREBOOT
#include "lzip.c"
#else
#include "linux_lzip.h"
#include "linux_lunzip.h"
#include "linux_mm.h"
#endif
STATIC int INIT __lunzip(unsigned char *inbuf, long in_len,
long (*fill)(void*, unsigned long),
long (*flush)(void*, unsigned long),
unsigned char *outbuf, long out_size,
long *in_posp, long *out_posp,
void (*error)(char *x))
{
const int retval = lzip_decompress(inbuf, in_len, fill, flush,
outbuf, out_size, in_posp, out_posp);
switch (retval) {
case 0: break;
case LZIP_OOM_INBUF:
error("Out of memory while allocating input buffer.");
break;
case LZIP_HEADER1_EOF:
error("File ends unexpectedly at member header.");
break;
case LZIP_HEADER2_EOF:
error("Truncated header in multimember file.");
break;
case LZIP_BAD_MAGIC1:
error("Bad magic number (file not in lzip format).");
break;
case LZIP_BAD_MAGIC2:
error("Corrupt header in multimember file.");
break;
case LZIP_BAD_VERSION:
error("Version of lzip member format not supported.");
break;
case LZIP_BAD_DICT_SIZE:
error("Invalid dictionary size in member header.");
break;
case LZIP_OOM_OUTBUF:
error("Out of memory while allocating output buffer.");
break;
case LZIP_WRITE_ERROR:
error("Write error.");
break;
case LZIP_BAD_DATA:
error("LZIP-compressed data is corrupt.");
break;
case LZIP_DATA_EOF:
error("LZIP-compressed data ends unexpectedly.");
break;
case LZIP_BAD_CRC:
error("CRC mismatch in LZIP-compressed data.");
break;
default:
error("Bug in the LZIP decompressor.");
}
return retval;
}
#ifndef PREBOOT
/* decompress_fn (see linux/decompress/generic.h) should have an out_size
* argument to prevent overrunning outbuf in case of corruption of the
* compressed data.
*/
STATIC int INIT lunzip(unsigned char *inbuf, long in_len,
long (*fill)(void*, unsigned long),
long (*flush)(void*, unsigned long),
unsigned char *outbuf,
long *in_posp,
void (*error)(char *x))
{
return __lunzip(inbuf, in_len, fill, flush, outbuf, LONG_MAX,
in_posp, 0, error);
}
#else
STATIC int INIT __decompress(unsigned char *inbuf, long in_len,
long (*fill)(void*, unsigned long),
long (*flush)(void*, unsigned long),
unsigned char *outbuf, long out_size,
long *in_posp,
void (*error)(char *x))
{
/* Some archs pass out_size = 0 (to mean unlimited size), which is unsafe
* in case of corruption of the compressed data.
*/
return __lunzip(inbuf, in_len - 4, fill, flush, outbuf,
out_size ? out_size : LONG_MAX, in_posp, 0, error);
}
#endif