gzip: Update to 1.7

Fixes #11082
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
This commit is contained in:
Michael Tremer 2016-03-29 12:48:51 +01:00
parent a27324ba2f
commit 780664ccf1
8 changed files with 1 additions and 514 deletions

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@ -4,7 +4,7 @@
###############################################################################
name = gzip
version = 1.6
version = 1.7
release = 1
groups = Applications/Compression

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@ -1,12 +0,0 @@
--- gzip-1.3.10/zgrep.in.pom 2006-12-30 04:01:51.000000000 +0100
+++ gzip-1.3.10/zgrep.in 2007-02-06 10:54:33.000000000 +0100
@@ -190,5 +190,8 @@
r=$?
test "$gzip_status" -eq 0 || test "$gzip_status" -eq 2 || r=2
test $res -lt $r && res=$r
+ # SIGPIPE + 128
+ test "$r" -eq 141 && exit $res
done
+trap - SIGPIPE
exit $res

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@ -1,45 +0,0 @@
--- gzip-1.3.12/znew.in.owl-tmp 2007-06-04 09:15:11.000000000 +0200
+++ gzip-1.3.12/znew.in 2007-06-04 09:23:18.000000000 +0200
@@ -55,28 +55,27 @@
# block is the disk block size (best guess, need not be exact)
warn="(does not preserve modes and timestamp)"
-tmp=${TMPDIR-/tmp}/zfoo.$$
-set -C
-echo hi > $tmp || exit
-if test -z "`(${CPMOD-cpmod} $tmp $tmp) 2>&1`"; then
- cpmod=${CPMOD-cpmod}
+cpmod=
+cpmodarg=
+if type ${CPMOD:-cpmod} 2>/dev/null; then
+ cpmod=${CPMOD:-cpmod}
warn=""
fi
-if test -z "$cpmod" && ${TOUCH-touch} -r $tmp $tmp 2>/dev/null; then
- cpmod="${TOUCH-touch}"
+if test -z "$cpmod"; then
+ cpmod=touch
cpmodarg="-r"
warn="(does not preserve file modes)"
fi
-# check if GZIP env. variable uses -S or --suffix
-gzip -q $tmp
-ext=`echo $tmp* | sed "s|$tmp||"`
-rm -f $tmp*
-if test -z "$ext"; then
- echo znew: error determining gzip extension
- exit 1
-fi
+case "$GZIP" in
+ *-S*) ext=`echo "$GZIP" | sed 's/^.*-S[[:space:]]*\([^[:space:]]*\).*$/\1/'`
+ ;;
+ *-suffix*) ext=`echo "$GZIP" | sed 's/^.*--suffix=\([^[:space:]]*\).*$/\1/'`
+ ;;
+ *) ext='.gz'
+ ;;
+esac
if test "$ext" = ".Z"; then
echo znew: cannot use .Z as gzip extension.
exit 1

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@ -1,118 +0,0 @@
--- gzip-1.3.9/unlzh.c.4337 2007-01-15 16:31:53.000000000 +0100
+++ gzip-1.3.9/unlzh.c 2007-01-15 16:38:08.000000000 +0100
@@ -146,8 +146,8 @@
start[1] = 0;
for (i = 1; i <= 16; i++)
start[i + 1] = start[i] + (count[i] << (16 - i));
- if ((start[17] & 0xffff) != 0)
- gzip_error ("Bad table\n");
+ if ((start[17] & 0xffff) != 0 || tablebits > 16) /* 16 for weight below */
+ gzip_error ("Bad table (case b)\n");
jutbits = 16 - tablebits;
for (i = 1; i <= (unsigned)tablebits; i++) {
@@ -161,15 +162,15 @@
i = start[tablebits + 1] >> jutbits;
if (i != 0) {
- k = 1 << tablebits;
- while (i != k) table[i++] = 0;
+ k = MIN(1 << tablebits, DIST_BUFSIZE);
+ while (i < k) table[i++] = 0;
}
avail = nchar;
mask = (unsigned) 1 << (15 - tablebits);
for (ch = 0; ch < (unsigned)nchar; ch++) {
if ((len = bitlen[ch]) == 0) continue;
- nextcode = start[len] + weight[len];
+ nextcode = MIN(start[len] + weight[len], DIST_BUFSIZE);
if (len <= (unsigned)tablebits) {
if ((unsigned) 1 << tablebits < nextcode)
gzip_error ("Bad table\n");
@@ -212,7 +213,7 @@
for (i = 0; i < 256; i++) pt_table[i] = c;
} else {
i = 0;
- while (i < n) {
+ while (i < MIN(n,NPT)) {
c = bitbuf >> (BITBUFSIZ - 3);
if (c == 7) {
mask = (unsigned) 1 << (BITBUFSIZ - 1 - 3);
@@ -224,7 +225,7 @@
pt_len[i++] = c;
if (i == i_special) {
c = getbits(2);
- while (--c >= 0) pt_len[i++] = 0;
+ while (--c >= 0 && i < NPT) pt_len[i++] = 0;
}
}
while (i < nn) pt_len[i++] = 0;
@@ -244,7 +245,7 @@
for (i = 0; i < 4096; i++) c_table[i] = c;
} else {
i = 0;
- while (i < n) {
+ while (i < MIN(n,NC)) {
c = pt_table[bitbuf >> (BITBUFSIZ - 8)];
if (c >= NT) {
mask = (unsigned) 1 << (BITBUFSIZ - 1 - 8);
@@ -259,7 +260,7 @@
if (c == 0) c = 1;
else if (c == 1) c = getbits(4) + 3;
else c = getbits(CBIT) + 20;
- while (--c >= 0) c_len[i++] = 0;
+ while (--c >= 0 && i < NC) c_len[i++] = 0;
} else c_len[i++] = c - 2;
}
while (i < NC) c_len[i++] = 0;
@@ -352,7 +353,7 @@
while (--j >= 0) {
buffer[r] = buffer[i];
i = (i + 1) & (DICSIZ - 1);
- if (++r == count) return r;
+ if (++r >= count) return r;
}
for ( ; ; ) {
c = decode_c();
@@ -362,14 +363,14 @@
}
if (c <= UCHAR_MAX) {
buffer[r] = c;
- if (++r == count) return r;
+ if (++r >= count) return r;
} else {
j = c - (UCHAR_MAX + 1 - THRESHOLD);
i = (r - decode_p() - 1) & (DICSIZ - 1);
while (--j >= 0) {
buffer[r] = buffer[i];
i = (i + 1) & (DICSIZ - 1);
- if (++r == count) return r;
+ if (++r >= count) return r;
}
}
}
--- gzip-1.3.9/gzip.h.4337 2007-01-15 16:31:53.000000000 +0100
+++ gzip-1.3.9/gzip.h 2007-01-15 16:38:52.000000000 +0100
@@ -224,6 +224,8 @@
#define get_byte() (inptr < insize ? inbuf[inptr++] : fill_inbuf(0))
#define try_byte() (inptr < insize ? inbuf[inptr++] : fill_inbuf(1))
+#define MIN(a,b) ((a) <= (b) ? (a) : (b))
+
/* put_byte is used for the compressed output, put_ubyte for the
* uncompressed output. However unlzw() uses window for its
* suffix table instead of its output buffer, so it does not use put_ubyte
--- gzip-1.3.9/unpack.c.4337 2007-01-15 16:31:53.000000000 +0100
+++ gzip-1.3.9/unpack.c 2007-01-15 16:39:12.000000000 +0100
@@ -21,9 +21,6 @@
#include "tailor.h"
#include "gzip.h"
-#define MIN(a,b) ((a) <= (b) ? (a) : (b))
-/* The arguments must not have side effects. */
-
#define MAX_BITLEN 25
/* Maximum length of Huffman codes. (Minor modifications to the code
* would be needed to support 32 bits codes, but pack never generates

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@ -1,286 +0,0 @@
diff -up gzip-1.3.13/deflate.c.rsync gzip-1.3.13/deflate.c
--- gzip-1.3.13/deflate.c.rsync 2009-09-26 20:43:28.000000000 +0200
+++ gzip-1.3.13/deflate.c 2009-12-01 16:14:24.656387546 +0100
@@ -131,6 +131,14 @@
#endif
/* Matches of length 3 are discarded if their distance exceeds TOO_FAR */
+#ifndef RSYNC_WIN
+# define RSYNC_WIN 4096
+#endif
+/* Size of rsync window, must be < MAX_DIST */
+
+#define RSYNC_SUM_MATCH(sum) ((sum) % RSYNC_WIN == 0)
+/* Whether window sum matches magic value */
+
/* ===========================================================================
* Local data used by the "longest match" routines.
*/
@@ -212,6 +220,8 @@ local int compr_level;
unsigned good_match;
/* Use a faster search when the previous match is longer than this */
+local ulg rsync_sum; /* rolling sum of rsync window */
+local ulg rsync_chunk_end; /* next rsync sequence point */
/* Values for max_lazy_match, good_match and max_chain_length, depending on
* the desired pack level (0..9). The values given below have been tuned to
@@ -310,6 +320,10 @@ void lm_init (pack_level, flags)
#endif
/* prev will be initialized on the fly */
+ /* rsync params */
+ rsync_chunk_end = 0xFFFFFFFFUL;
+ rsync_sum = 0;
+
/* Set the default configuration parameters:
*/
max_lazy_match = configuration_table[pack_level].max_lazy;
@@ -546,6 +560,8 @@ local void fill_window()
memcpy((char*)window, (char*)window+WSIZE, (unsigned)WSIZE);
match_start -= WSIZE;
strstart -= WSIZE; /* we now have strstart >= MAX_DIST: */
+ if (rsync_chunk_end != 0xFFFFFFFFUL)
+ rsync_chunk_end -= WSIZE;
block_start -= (long) WSIZE;
@@ -573,13 +589,46 @@ local void fill_window()
}
}
+local void rsync_roll(start, num)
+ unsigned start;
+ unsigned num;
+{
+ unsigned i;
+
+ if (start < RSYNC_WIN) {
+ /* before window fills. */
+ for (i = start; i < RSYNC_WIN; i++) {
+ if (i == start + num) return;
+ rsync_sum += (ulg)window[i];
+ }
+ num -= (RSYNC_WIN - start);
+ start = RSYNC_WIN;
+ }
+
+ /* buffer after window full */
+ for (i = start; i < start+num; i++) {
+ /* New character in */
+ rsync_sum += (ulg)window[i];
+ /* Old character out */
+ rsync_sum -= (ulg)window[i - RSYNC_WIN];
+ if (rsync_chunk_end == 0xFFFFFFFFUL && RSYNC_SUM_MATCH(rsync_sum))
+ rsync_chunk_end = i;
+ }
+}
+
+/* ===========================================================================
+ * Set rsync_chunk_end if window sum matches magic value.
+ */
+#define RSYNC_ROLL(s, n) \
+ do { if (rsync) rsync_roll((s), (n)); } while(0)
+
/* ===========================================================================
* Flush the current block, with given end-of-file flag.
* IN assertion: strstart is set to the end of the current match.
*/
#define FLUSH_BLOCK(eof) \
flush_block(block_start >= 0L ? (char*)&window[(unsigned)block_start] : \
- (char*)NULL, (long)strstart - block_start, (eof))
+ (char*)NULL, (long)strstart - block_start, flush-1, (eof))
/* ===========================================================================
* Processes a new input file and return its compressed length. This
@@ -590,7 +639,7 @@ local void fill_window()
local off_t deflate_fast()
{
IPos hash_head; /* head of the hash chain */
- int flush; /* set if current block must be flushed */
+ int flush; /* set if current block must be flushed, 2=>and padded */
unsigned match_length = 0; /* length of best match */
prev_length = MIN_MATCH-1;
@@ -674,7 +674,8 @@
flush = ct_tally(strstart-match_start, match_length - MIN_MATCH);
lookahead -= match_length;
-
+
+ RSYNC_ROLL(strstart, match_length);
/* Insert new strings in the hash table only if the match length
* is not too large. This saves time but degrades compression.
*/
@@ -703,9 +704,14 @@
/* No match, output a literal byte */
Tracevv((stderr,"%c",window[strstart]));
flush = ct_tally (0, window[strstart]);
+ RSYNC_ROLL(strstart, 1);
lookahead--;
strstart++;
}
+ if (rsync && strstart > rsync_chunk_end) {
+ rsync_chunk_end = 0xFFFFFFFFUL;
+ flush = 2;
+ }
if (flush) FLUSH_BLOCK(0), block_start = strstart;
/* Make sure that we always have enough lookahead, except
@@ -724,6 +779,7 @@ off_t deflate()
*/
lookahead -= prev_length-1;
prev_length -= 2;
+ RSYNC_ROLL(strstart, prev_length+1);
do {
strstart++;
INSERT_STRING(strstart, hash_head);
@@ -736,24 +792,40 @@ off_t deflate()
match_available = 0;
match_length = MIN_MATCH-1;
strstart++;
- if (flush) FLUSH_BLOCK(0), block_start = strstart;
+ if (rsync && strstart > rsync_chunk_end) {
+ rsync_chunk_end = 0xFFFFFFFFUL;
+ flush = 2;
+ }
+ if (flush) FLUSH_BLOCK(0), block_start = strstart;
} else if (match_available) {
/* If there was no match at the previous position, output a
* single literal. If there was a match but the current match
* is longer, truncate the previous match to a single literal.
*/
Tracevv((stderr,"%c",window[strstart-1]));
- if (ct_tally (0, window[strstart-1])) {
- FLUSH_BLOCK(0), block_start = strstart;
+ flush = ct_tally (0, window[strstart-1]);
+ if (rsync && strstart > rsync_chunk_end) {
+ rsync_chunk_end = 0xFFFFFFFFUL;
+ flush = 2;
}
+ if (flush) FLUSH_BLOCK(0), block_start = strstart;
+ RSYNC_ROLL(strstart, 1);
strstart++;
lookahead--;
} else {
/* There is no previous match to compare with, wait for
* the next step to decide.
*/
+ if (rsync && strstart > rsync_chunk_end) {
+ /* Reset huffman tree */
+ rsync_chunk_end = 0xFFFFFFFFUL;
+ flush = 2;
+ FLUSH_BLOCK(0), block_start = strstart;
+ }
+
match_available = 1;
+ RSYNC_ROLL(strstart, 1);
strstart++;
lookahead--;
}
diff -up gzip-1.3.13/doc/gzip.texi.rsync gzip-1.3.13/doc/gzip.texi
--- gzip-1.3.13/doc/gzip.texi.rsync 2009-09-28 11:08:16.000000000 +0200
+++ gzip-1.3.13/doc/gzip.texi 2009-12-01 16:14:24.664394713 +0100
@@ -353,6 +353,14 @@ specified on the command line are direct
into the directory and compress all the files it finds there (or
decompress them in the case of @command{gunzip}).
+@item --rsyncable
+While compressing, synchronize the output occasionally based on the
+input. This reduces compression by about 1 percent most cases, but
+means that the @code{rsync} program can take advantage of similarities
+in the uncompressed input when syncronizing two files compressed with
+this flag. @code{gunzip} cannot tell the difference between a
+compressed file created with this option, and one created without it.
+
@item --suffix @var{suf}
@itemx -S @var{suf}
Use suffix @var{suf} instead of @samp{.gz}. Any suffix can be
diff -up gzip-1.3.13/gzip.c.rsync gzip-1.3.13/gzip.c
--- gzip-1.3.13/gzip.c.rsync 2009-09-26 20:56:02.000000000 +0200
+++ gzip-1.3.13/gzip.c 2009-12-01 16:18:17.121387126 +0100
@@ -229,6 +229,7 @@ int ofd; /* output fil
unsigned insize; /* valid bytes in inbuf */
unsigned inptr; /* index of next byte to be processed in inbuf */
unsigned outcnt; /* bytes in output buffer */
+int rsync = 0; /* make ryncable chunks */
static int handled_sig[] =
{
@@ -271,7 +271,7 @@ static const struct option longopts[] =
{"best", 0, 0, '9'}, /* compress better */
{"lzw", 0, 0, 'Z'}, /* make output compatible with old compress */
{"bits", 1, 0, 'b'}, /* max number of bits per code (implies -Z) */
-
+ {"rsyncable", 0, 0, 'R'}, /* make rsync-friendly archive */
{ 0, 0, 0, 0 }
};
@@ -363,6 +365,7 @@ local void help()
" -Z, --lzw produce output compatible with old compress",
" -b, --bits=BITS max number of bits per code (implies -Z)",
#endif
+ " --rsyncable Make rsync-friendly archive",
"",
"With no FILE, or when FILE is -, read standard input.",
"",
@@ -484,6 +484,9 @@ int main (int argc, char **argv)
recursive = 1;
#endif
break;
+
+ case 'R':
+ rsync = 1; break;
case 'S':
#ifdef NO_MULTIPLE_DOTS
if (*optarg == '.') optarg++;
diff -up gzip-1.3.13/gzip.h.rsync gzip-1.3.13/gzip.h
--- gzip-1.3.13/gzip.h.rsync 2009-09-26 20:43:28.000000000 +0200
+++ gzip-1.3.13/gzip.h 2009-12-01 16:14:24.664394713 +0100
@@ -158,6 +158,7 @@ EXTERN(uch, window); /* Sliding
extern unsigned insize; /* valid bytes in inbuf */
extern unsigned inptr; /* index of next byte to be processed in inbuf */
extern unsigned outcnt; /* bytes in output buffer */
+extern int rsync; /* deflate into rsyncable chunks */
extern off_t bytes_in; /* number of input bytes */
extern off_t bytes_out; /* number of output bytes */
@@ -288,7 +288,7 @@ extern off_t deflate (void);
/* in trees.c */
extern void ct_init (ush *attr, int *method);
extern int ct_tally (int dist, int lc);
-extern off_t flush_block (char *buf, ulg stored_len, int eof);
+extern off_t flush_block (char *buf, ulg stored_len, int pad, int eof);
/* in bits.c */
extern void bi_init (file_t zipfile);
diff -up gzip-1.3.13/trees.c.rsync gzip-1.3.13/trees.c
--- gzip-1.3.13/trees.c.rsync 2009-09-26 20:43:28.000000000 +0200
+++ gzip-1.3.13/trees.c 2009-12-01 16:14:24.655388257 +0100
@@ -856,9 +856,10 @@ local void send_all_trees(lcodes, dcodes
* trees or store, and output the encoded block to the zip file. This function
* returns the total compressed length for the file so far.
*/
-off_t flush_block(buf, stored_len, eof)
+off_t flush_block(buf, stored_len, pad, eof)
char *buf; /* input block, or NULL if too old */
ulg stored_len; /* length of input block */
+ int pad; /* pad output to byte boundary */
int eof; /* true if this is the last block for a file */
{
ulg opt_lenb, static_lenb; /* opt_len and static_len in bytes */
@@ -951,6 +952,10 @@ off_t flush_block(buf, stored_len, eof)
Assert (input_len == bytes_in, "bad input size");
bi_windup();
compressed_len += 7; /* align on byte boundary */
+ } else if (pad && (compressed_len % 8) != 0) {
+ send_bits((STORED_BLOCK<<1)+eof, 3); /* send block type */
+ compressed_len = (compressed_len + 3 + 7) & ~7L;
+ copy_block(buf, 0, 1); /* with header */
}
return compressed_len >> 3;

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@ -1,11 +0,0 @@
--- gzip-1.3.5/unlzh.c.len 2006-11-22 09:35:10.000000000 +0100
+++ gzip-1.3.5/unlzh.c 2006-11-22 09:38:52.000000000 +0100
@@ -189,7 +189,7 @@
}
*p = ch;
}
- start[len] = nextcode;
+ start[len] = start[len] + weight[len];
}
}

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@ -1,29 +0,0 @@
--- gzip-1.3.3/unlzh.c.4338 2006-09-07 10:49:31.000000000 +0200
+++ gzip-1.3.3/unlzh.c 2006-09-07 11:37:53.000000000 +0200
@@ -252,7 +252,7 @@ local void read_c_len()
if (bitbuf & mask) c = right[c];
else c = left [c];
mask >>= 1;
- } while (c >= NT);
+ } while (c >= NT && (mask || c != left[c]));
}
fillbuf((int) pt_len[c]);
if (c <= 2) {
@@ -288,7 +288,7 @@ local unsigned decode_c()
if (bitbuf & mask) j = right[j];
else j = left [j];
mask >>= 1;
- } while (j >= NC);
+ } while (j >= NC && (mask || j != left[j]));
}
fillbuf((int) c_len[j]);
return j;
@@ -305,7 +305,7 @@ local unsigned decode_p()
if (bitbuf & mask) j = right[j];
else j = left [j];
mask >>= 1;
- } while (j >= NP);
+ } while (j >= NP && (mask || j != left[j]));
}
fillbuf((int) pt_len[j]);
if (j != 0) j = ((unsigned) 1 << (j - 1)) + getbits((int) (j - 1));

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@ -1,12 +0,0 @@
diff -up gzip-1.3.12/zforce.in.zforce gzip-1.3.12/zforce.in
--- gzip-1.3.12/zforce.in.zforce 2007-02-05 21:54:26.000000000 +0100
+++ gzip-1.3.12/zforce.in 2008-09-01 14:17:26.000000000 +0200
@@ -58,7 +58,7 @@ for i do
continue
fi
- if gzip -lv < "$i" 2>/dev/null | grep '^defl' > /dev/null; then
+ if gzip -l < "$i" 2>/dev/null | grep 'compressed' > /dev/null; then
new="$i.gz"
if mv "$i" "$new"; then