summaryrefslogtreecommitdiff
path: root/package/busybox/busybox-1.11.0-bunzip2.patch
diff options
context:
space:
mode:
Diffstat (limited to 'package/busybox/busybox-1.11.0-bunzip2.patch')
-rw-r--r--package/busybox/busybox-1.11.0-bunzip2.patch503
1 files changed, 0 insertions, 503 deletions
diff --git a/package/busybox/busybox-1.11.0-bunzip2.patch b/package/busybox/busybox-1.11.0-bunzip2.patch
deleted file mode 100644
index 97f9fec0b..000000000
--- a/package/busybox/busybox-1.11.0-bunzip2.patch
+++ /dev/null
@@ -1,503 +0,0 @@
---- busybox-1.11.0/archival/libunarchive/decompress_bunzip2.c Wed Jun 25 14:51:26 2008
-+++ busybox-1.11.0-bunzip2/archival/libunarchive/decompress_bunzip2.c Sat Jun 28 20:04:31 2008
-@@ -66,7 +66,6 @@
- * | grep 'bd->' | sed 's/^.*bd->/bd->/' | sort | $PAGER
- * and moved it (inbufBitCount) to offset 0.
- */
--
- struct bunzip_data {
- /* I/O tracking data (file handles, buffers, positions, etc.) */
- unsigned inbufBitCount, inbufBits;
-@@ -102,11 +101,9 @@
-
- /* If we need to get more data from the byte buffer, do so. (Loop getting
- one byte at a time to enforce endianness and avoid unaligned access.) */
--
- while ((int)(bd->inbufBitCount) < bits_wanted) {
-
- /* If we need to read more data from file into byte buffer, do so */
--
- if (bd->inbufPos == bd->inbufCount) {
- /* if "no input fd" case: in_fd == -1, read fails, we jump */
- bd->inbufCount = read(bd->in_fd, bd->inbuf, IOBUF_SIZE);
-@@ -116,7 +113,6 @@
- }
-
- /* Avoid 32-bit overflow (dump bit buffer to top of output) */
--
- if (bd->inbufBitCount >= 24) {
- bits = bd->inbufBits & ((1 << bd->inbufBitCount) - 1);
- bits_wanted -= bd->inbufBitCount;
-@@ -125,13 +121,11 @@
- }
-
- /* Grab next 8 bits of input from buffer. */
--
- bd->inbufBits = (bd->inbufBits << 8) | bd->inbuf[bd->inbufPos++];
- bd->inbufBitCount += 8;
- }
-
- /* Calculate result */
--
- bd->inbufBitCount -= bits_wanted;
- bits |= (bd->inbufBits >> bd->inbufBitCount) & ((1 << bits_wanted) - 1);
-
-@@ -139,7 +133,6 @@
- }
-
- /* Unpacks the next block and sets up for the inverse burrows-wheeler step. */
--
- static int get_next_block(bunzip_data *bd)
- {
- struct group_data *hufGroup;
-@@ -153,13 +146,11 @@
- selectors = bd->selectors;
-
- /* Reset longjmp I/O error handling */
--
- i = setjmp(bd->jmpbuf);
- if (i) return i;
-
- /* Read in header signature and CRC, then validate signature.
- (last block signature means CRC is for whole file, return now) */
--
- i = get_bits(bd, 24);
- j = get_bits(bd, 24);
- bd->headerCRC = get_bits(bd, 32);
-@@ -169,7 +160,6 @@
- /* We can add support for blockRandomised if anybody complains. There was
- some code for this in busybox 1.0.0-pre3, but nobody ever noticed that
- it didn't actually work. */
--
- if (get_bits(bd, 1)) return RETVAL_OBSOLETE_INPUT;
- origPtr = get_bits(bd, 24);
- if ((int)origPtr > dbufSize) return RETVAL_DATA_ERROR;
-@@ -179,7 +169,6 @@
- symbols to deal with, and writes a sparse bitfield indicating which
- values were present. We make a translation table to convert the symbols
- back to the corresponding bytes. */
--
- t = get_bits(bd, 16);
- symTotal = 0;
- for (i = 0; i < 16; i++) {
-@@ -192,7 +181,6 @@
- }
-
- /* How many different Huffman coding groups does this block use? */
--
- groupCount = get_bits(bd, 3);
- if (groupCount < 2 || groupCount > MAX_GROUPS)
- return RETVAL_DATA_ERROR;
-@@ -201,19 +189,16 @@
- group. Read in the group selector list, which is stored as MTF encoded
- bit runs. (MTF=Move To Front, as each value is used it's moved to the
- start of the list.) */
--
- nSelectors = get_bits(bd, 15);
- if (!nSelectors) return RETVAL_DATA_ERROR;
- for (i = 0; i < groupCount; i++) mtfSymbol[i] = i;
- for (i = 0; i < nSelectors; i++) {
-
- /* Get next value */
--
- for (j = 0; get_bits(bd, 1); j++)
- if (j >= groupCount) return RETVAL_DATA_ERROR;
-
- /* Decode MTF to get the next selector */
--
- uc = mtfSymbol[j];
- for (;j;j--) mtfSymbol[j] = mtfSymbol[j-1];
- mtfSymbol[0] = selectors[i] = uc;
-@@ -221,10 +206,11 @@
-
- /* Read the Huffman coding tables for each group, which code for symTotal
- literal symbols, plus two run symbols (RUNA, RUNB) */
--
- symCount = symTotal + 2;
- for (j = 0; j < groupCount; j++) {
-- unsigned char length[MAX_SYMBOLS], temp[MAX_HUFCODE_BITS+1];
-+ unsigned char length[MAX_SYMBOLS];
-+ /* 8 bits is ALMOST enough for temp[], see below */
-+ unsigned temp[MAX_HUFCODE_BITS+1];
- int minLen, maxLen, pp;
-
- /* Read Huffman code lengths for each symbol. They're stored in
-@@ -233,7 +219,6 @@
- (Subtracting 1 before the loop and then adding it back at the end is
- an optimization that makes the test inside the loop simpler: symbol
- length 0 becomes negative, so an unsigned inequality catches it.) */
--
- t = get_bits(bd, 5) - 1;
- for (i = 0; i < symCount; i++) {
- for (;;) {
-@@ -243,7 +228,6 @@
- /* If first bit is 0, stop. Else second bit indicates whether
- to increment or decrement the value. Optimization: grab 2
- bits and unget the second if the first was 0. */
--
- k = get_bits(bd, 2);
- if (k < 2) {
- bd->inbufBitCount++;
-@@ -251,17 +235,14 @@
- }
-
- /* Add one if second bit 1, else subtract 1. Avoids if/else */
--
- t += (((k+1) & 2) - 1);
- }
-
- /* Correct for the initial -1, to get the final symbol length */
--
- length[i] = t + 1;
- }
-
- /* Find largest and smallest lengths in this group */
--
- minLen = maxLen = length[0];
- for (i = 1; i < symCount; i++) {
- if (length[i] > maxLen) maxLen = length[i];
-@@ -278,7 +259,6 @@
- * number of bits can have. This is how the Huffman codes can vary in
- * length: each code with a value>limit[length] needs another bit.
- */
--
- hufGroup = bd->groups + j;
- hufGroup->minLen = minLen;
- hufGroup->maxLen = maxLen;
-@@ -286,12 +266,10 @@
- /* Note that minLen can't be smaller than 1, so we adjust the base
- and limit array pointers so we're not always wasting the first
- entry. We do this again when using them (during symbol decoding).*/
--
- base = hufGroup->base - 1;
- limit = hufGroup->limit - 1;
-
- /* Calculate permute[]. Concurently, initialize temp[] and limit[]. */
--
- pp = 0;
- for (i = minLen; i <= maxLen; i++) {
- temp[i] = limit[i] = 0;
-@@ -301,14 +279,14 @@
- }
-
- /* Count symbols coded for at each bit length */
--
-+ /* NB: in pathological cases, temp[8] can end ip being 256.
-+ * That's why uint8_t is too small for temp[]. */
- for (i = 0; i < symCount; i++) temp[length[i]]++;
-
- /* Calculate limit[] (the largest symbol-coding value at each bit
- * length, which is (previous limit<<1)+symbols at this level), and
- * base[] (number of symbols to ignore at each bit length, which is
- * limit minus the cumulative count of symbols coded for already). */
--
- pp = t = 0;
- for (i = minLen; i < maxLen; i++) {
- pp += temp[i];
-@@ -319,7 +297,6 @@
- each level we're really only interested in the first few bits,
- so here we set all the trailing to-be-ignored bits to 1 so they
- don't affect the value>limit[length] comparison. */
--
- limit[i] = (pp << (maxLen - i)) - 1;
- pp <<= 1;
- t += temp[i];
-@@ -335,7 +312,6 @@
- and run length encoding, saving the result into dbuf[dbufCount++] = uc */
-
- /* Initialize symbol occurrence counters and symbol Move To Front table */
--
- memset(byteCount, 0, sizeof(byteCount)); /* smaller, maybe slower? */
- for (i = 0; i < 256; i++) {
- //byteCount[i] = 0;
-@@ -347,8 +323,7 @@
- runPos = dbufCount = selector = 0;
- for (;;) {
-
-- /* fetch next Huffman coding group from list. */
--
-+ /* Fetch next Huffman coding group from list. */
- symCount = GROUP_SIZE - 1;
- if (selector >= nSelectors) return RETVAL_DATA_ERROR;
- hufGroup = bd->groups + selectors[selector++];
-@@ -367,7 +342,6 @@
- dry). The following (up to got_huff_bits:) is equivalent to
- j = get_bits(bd, hufGroup->maxLen);
- */
--
- while ((int)(bd->inbufBitCount) < hufGroup->maxLen) {
- if (bd->inbufPos == bd->inbufCount) {
- j = get_bits(bd, hufGroup->maxLen);
-@@ -382,13 +356,11 @@
- got_huff_bits:
-
- /* Figure how how many bits are in next symbol and unget extras */
--
- i = hufGroup->minLen;
- while (j > limit[i]) ++i;
- bd->inbufBitCount += (hufGroup->maxLen - i);
-
- /* Huffman decode value to get nextSym (with bounds checking) */
--
- if (i > hufGroup->maxLen)
- return RETVAL_DATA_ERROR;
- j = (j >> (hufGroup->maxLen - i)) - base[i];
-@@ -400,11 +372,9 @@
- byte, or a repeated run of the most recent literal byte. First,
- check if nextSym indicates a repeated run, and if so loop collecting
- how many times to repeat the last literal. */
--
- if ((unsigned)nextSym <= SYMBOL_RUNB) { /* RUNA or RUNB */
-
- /* If this is the start of a new run, zero out counter */
--
- if (!runPos) {
- runPos = 1;
- t = 0;
-@@ -417,7 +387,6 @@
- the basic or 0/1 method (except all bits 0, which would use no
- symbols, but a run of length 0 doesn't mean anything in this
- context). Thus space is saved. */
--
- t += (runPos << nextSym); /* +runPos if RUNA; +2*runPos if RUNB */
- if (runPos < dbufSize) runPos <<= 1;
- goto end_of_huffman_loop;
-@@ -427,7 +396,6 @@
- how many times to repeat the last literal, so append that many
- copies to our buffer of decoded symbols (dbuf) now. (The last
- literal used is the one at the head of the mtfSymbol array.) */
--
- if (runPos) {
- runPos = 0;
- if (dbufCount + t >= dbufSize) return RETVAL_DATA_ERROR;
-@@ -438,7 +406,6 @@
- }
-
- /* Is this the terminating symbol? */
--
- if (nextSym > symTotal) break;
-
- /* At this point, nextSym indicates a new literal character. Subtract
-@@ -448,7 +415,6 @@
- first symbol in the mtf array, position 0, would have been handled
- as part of a run above. Therefore 1 unused mtf position minus
- 2 non-literal nextSym values equals -1.) */
--
- if (dbufCount >= dbufSize) return RETVAL_DATA_ERROR;
- i = nextSym - 1;
- uc = mtfSymbol[i];
-@@ -457,7 +423,6 @@
- * small number of symbols, and are bound by 256 in any case, using
- * memmove here would typically be bigger and slower due to function
- * call overhead and other assorted setup costs. */
--
- do {
- mtfSymbol[i] = mtfSymbol[i-1];
- } while (--i);
-@@ -465,13 +430,11 @@
- uc = symToByte[uc];
-
- /* We have our literal byte. Save it into dbuf. */
--
- byteCount[uc]++;
- dbuf[dbufCount++] = (unsigned)uc;
-
- /* Skip group initialization if we're not done with this group. Done
- * this way to avoid compiler warning. */
--
- end_of_huffman_loop:
- if (symCount--) goto continue_this_group;
- }
-@@ -484,7 +447,6 @@
- */
-
- /* Turn byteCount into cumulative occurrence counts of 0 to n-1. */
--
- j = 0;
- for (i = 0; i < 256; i++) {
- k = j + byteCount[i];
-@@ -493,7 +455,6 @@
- }
-
- /* Figure out what order dbuf would be in if we sorted it. */
--
- for (i = 0; i < dbufCount; i++) {
- uc = (unsigned char)(dbuf[i] & 0xff);
- dbuf[byteCount[uc]] |= (i << 8);
-@@ -503,11 +464,10 @@
- /* Decode first byte by hand to initialize "previous" byte. Note that it
- doesn't get output, and if the first three characters are identical
- it doesn't qualify as a run (hence writeRunCountdown=5). */
--
- if (dbufCount) {
- if ((int)origPtr >= dbufCount) return RETVAL_DATA_ERROR;
- bd->writePos = dbuf[origPtr];
-- bd->writeCurrent = (unsigned char)(bd->writePos & 0xff);
-+ bd->writeCurrent = (unsigned char)(bd->writePos & 0xff);
- bd->writePos >>= 8;
- bd->writeRunCountdown = 5;
- }
-@@ -522,7 +482,6 @@
- error (all errors are negative numbers). If out_fd!=-1, outbuf and len
- are ignored, data is written to out_fd and return is RETVAL_OK or error.
- */
--
- int read_bunzip(bunzip_data *bd, char *outbuf, int len)
- {
- const unsigned *dbuf;
-@@ -539,19 +498,15 @@
- /* We will always have pending decoded data to write into the output
- buffer unless this is the very first call (in which case we haven't
- Huffman-decoded a block into the intermediate buffer yet). */
--
- if (bd->writeCopies) {
-
- /* Inside the loop, writeCopies means extra copies (beyond 1) */
--
- --bd->writeCopies;
-
- /* Loop outputting bytes */
--
- for (;;) {
-
- /* If the output buffer is full, snapshot state and return */
--
- if (gotcount >= len) {
- bd->writePos = pos;
- bd->writeCurrent = current;
-@@ -560,13 +515,11 @@
- }
-
- /* Write next byte into output buffer, updating CRC */
--
- outbuf[gotcount++] = current;
- bd->writeCRC = (bd->writeCRC << 8)
-- ^ bd->crc32Table[(bd->writeCRC >> 24) ^ current];
-+ ^ bd->crc32Table[(bd->writeCRC >> 24) ^ current];
-
- /* Loop now if we're outputting multiple copies of this byte */
--
- if (bd->writeCopies) {
- --bd->writeCopies;
- continue;
-@@ -582,35 +535,29 @@
- /* After 3 consecutive copies of the same byte, the 4th
- * is a repeat count. We count down from 4 instead
- * of counting up because testing for non-zero is faster */
--
- if (--bd->writeRunCountdown) {
- if (current != previous)
- bd->writeRunCountdown = 4;
- } else {
-
- /* We have a repeated run, this byte indicates the count */
--
- bd->writeCopies = current;
- current = previous;
- bd->writeRunCountdown = 5;
-
- /* Sometimes there are just 3 bytes (run length 0) */
--
- if (!bd->writeCopies) goto decode_next_byte;
-
- /* Subtract the 1 copy we'd output anyway to get extras */
--
- --bd->writeCopies;
- }
- }
-
- /* Decompression of this block completed successfully */
--
- bd->writeCRC = ~bd->writeCRC;
- bd->totalCRC = ((bd->totalCRC << 1) | (bd->totalCRC >> 31)) ^ bd->writeCRC;
-
- /* If this block had a CRC error, force file level CRC error. */
--
- if (bd->writeCRC != bd->headerCRC) {
- bd->totalCRC = bd->headerCRC + 1;
- return RETVAL_LAST_BLOCK;
-@@ -619,7 +566,6 @@
-
- /* Refill the intermediate buffer by Huffman-decoding next block of input */
- /* (previous is just a convenient unused temp variable here) */
--
- previous = get_next_block(bd);
- if (previous) {
- bd->writeCount = previous;
-@@ -631,7 +577,6 @@
- goto decode_next_byte;
- }
-
--
- /* Allocate the structure, read file header. If in_fd==-1, inbuf must contain
- a complete bunzip file (len bytes long). If in_fd!=-1, inbuf and len are
- ignored, and data is read from file handle into temporary buffer. */
-@@ -639,7 +584,6 @@
- /* Because bunzip2 is used for help text unpacking, and because bb_show_usage()
- should work for NOFORK applets too, we must be extremely careful to not leak
- any allocations! */
--
- int start_bunzip(bunzip_data **bdp, int in_fd, const unsigned char *inbuf,
- int len)
- {
-@@ -650,16 +594,13 @@
- };
-
- /* Figure out how much data to allocate */
--
- i = sizeof(bunzip_data);
- if (in_fd != -1) i += IOBUF_SIZE;
-
- /* Allocate bunzip_data. Most fields initialize to zero. */
--
- bd = *bdp = xzalloc(i);
-
- /* Setup input buffer */
--
- bd->in_fd = in_fd;
- if (-1 == in_fd) {
- /* in this case, bd->inbuf is read-only */
-@@ -669,22 +610,18 @@
- bd->inbuf = (unsigned char *)(bd + 1);
-
- /* Init the CRC32 table (big endian) */
--
- crc32_filltable(bd->crc32Table, 1);
-
- /* Setup for I/O error handling via longjmp */
--
- i = setjmp(bd->jmpbuf);
- if (i) return i;
-
- /* Ensure that file starts with "BZh['1'-'9']." */
--
- i = get_bits(bd, 32);
- if ((unsigned)(i - BZh0 - 1) >= 9) return RETVAL_NOT_BZIP_DATA;
-
-- /* Fourth byte (ascii '1'-'9'), indicates block size in units of 100k of
-+ /* Fourth byte (ascii '1'-'9') indicates block size in units of 100k of
- uncompressed data. Allocate intermediate buffer for block. */
--
- bd->dbufSize = 100000 * (i - BZh0);
-
- /* Cannot use xmalloc - may leak bd in NOFORK case! */
-@@ -704,7 +641,6 @@
-
-
- /* Decompress src_fd to dst_fd. Stops at end of bzip data, not end of file. */
--
- USE_DESKTOP(long long) int
- unpack_bz2_stream(int src_fd, int dst_fd)
- {
-@@ -761,9 +697,9 @@
- char c;
-
- if (i < 0)
-- fprintf(stderr,"%s\n", bunzip_errors[-i]);
-+ fprintf(stderr, "%s\n", bunzip_errors[-i]);
- else if (read(STDIN_FILENO, &c, 1))
-- fprintf(stderr,"Trailing garbage ignored\n");
-+ fprintf(stderr, "Trailing garbage ignored\n");
- return -i;
- }
- #endif