-/* vi: set sw = 4 ts = 4: */
/* Small bzip2 deflate implementation, by Rob Landley (rob@landley.net).
Based on bzip2 decompression code by Julian R Seward (jseward@acm.org),
#define PREBOOT
#else
#include <linux/decompress/bunzip2.h>
-#include <linux/slab.h>
#endif /* STATIC */
#include <linux/decompress/mm.h>
unsigned char selectors[32768]; /* nSelectors = 15 bits */
struct group_data groups[MAX_GROUPS]; /* Huffman coding tables */
int io_error; /* non-zero if we have IO error */
+ int byteCount[256];
+ unsigned char symToByte[256], mtfSymbol[256];
};
int *base = NULL;
int *limit = NULL;
int dbufCount, nextSym, dbufSize, groupCount, selector,
- i, j, k, t, runPos, symCount, symTotal, nSelectors,
- byteCount[256];
- unsigned char uc, symToByte[256], mtfSymbol[256], *selectors;
+ i, j, k, t, runPos, symCount, symTotal, nSelectors, *byteCount;
+ unsigned char uc, *symToByte, *mtfSymbol, *selectors;
unsigned int *dbuf, origPtr;
dbuf = bd->dbuf;
dbufSize = bd->dbufSize;
selectors = bd->selectors;
+ byteCount = bd->byteCount;
+ symToByte = bd->symToByte;
+ mtfSymbol = bd->mtfSymbol;
/* Read in header signature and CRC, then validate signature.
(last block signature means CRC is for whole file, return now) */
/* Allocate bunzip_data. Most fields initialize to zero. */
bd = *bdp = malloc(i);
+ if (!bd)
+ return RETVAL_OUT_OF_MEMORY;
memset(bd, 0, sizeof(struct bunzip_data));
/* Setup input buffer */
bd->inbuf = inbuf;
bd->dbufSize = 100000*(i-BZh0);
bd->dbuf = large_malloc(bd->dbufSize * sizeof(int));
+ if (!bd->dbuf)
+ return RETVAL_OUT_OF_MEMORY;
return RETVAL_OK;
}
int(*flush)(void*, unsigned int),
unsigned char *outbuf,
int *pos,
- void(*error_fn)(char *x))
+ void(*error)(char *x))
{
struct bunzip_data *bd;
int i = -1;
unsigned char *inbuf;
- set_error_fn(error_fn);
if (flush)
outbuf = malloc(BZIP2_IOBUF_SIZE);
if (!outbuf) {
- error("Could not allocate output bufer");
- return -1;
+ error("Could not allocate output buffer");
+ return RETVAL_OUT_OF_MEMORY;
}
if (buf)
inbuf = buf;
else
inbuf = malloc(BZIP2_IOBUF_SIZE);
if (!inbuf) {
- error("Could not allocate input bufer");
+ error("Could not allocate input buffer");
+ i = RETVAL_OUT_OF_MEMORY;
goto exit_0;
}
i = start_bunzip(&bd, inbuf, len, fill);
} else if (i == RETVAL_UNEXPECTED_OUTPUT_EOF) {
error("Compressed file ends unexpectedly");
}
+ if (!bd)
+ goto exit_1;
if (bd->dbuf)
large_free(bd->dbuf);
if (pos)
*pos = bd->inbufPos;
free(bd);
+exit_1:
if (!buf)
free(inbuf);
exit_0:
int(*flush)(void*, unsigned int),
unsigned char *outbuf,
int *pos,
- void(*error_fn)(char *x))
+ void(*error)(char *x))
{
- return bunzip2(buf, len - 4, fill, flush, outbuf, pos, error_fn);
+ return bunzip2(buf, len - 4, fill, flush, outbuf, pos, error);
}
#endif