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zlib 1.2.2.4

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This commit is contained in:
Mark Adler
2011-09-09 23:24:52 -07:00
parent 6b8233bfe0
commit 9c3a583021
29 changed files with 1035 additions and 137 deletions
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23
examples/gun.c
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@@ -1,7 +1,7 @@
/* gun.c -- simple gunzip to give an example of the use of inflateBack()
* Copyright (C) 2003, 2005 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
Version 1.2 20 March 2005 Mark Adler */
Version 1.3 12 June 2005 Mark Adler */
/* Version history:
1.0 16 Feb 2003 First version for testing of inflateBack()
@@ -14,6 +14,7 @@
Add a bunch of comments
1.2 20 Mar 2005 Add Unix compress (LZW) decompression
Copy file attributes from input file to output file
1.3 12 Jun 2005 Add casts for error messages [Oberhumer]
*/
/*
@@ -221,12 +222,12 @@ local int lunpipe(unsigned have, unsigned char *next, struct ind *indp,
if (last == -1)
return Z_BUF_ERROR;
if (flags & 0x60) {
strm->msg = "unknown lzw flags set";
strm->msg = (char *)"unknown lzw flags set";
return Z_DATA_ERROR;
}
max = flags & 0x1f;
if (max < 9 || max > 16) {
strm->msg = "lzw bits out of range";
strm->msg = (char *)"lzw bits out of range";
return Z_DATA_ERROR;
}
if (max == 9) /* 9 doesn't really mean 9 */
@@ -246,7 +247,7 @@ local int lunpipe(unsigned have, unsigned char *next, struct ind *indp,
if (NEXT() == -1) /* missing a bit */
return Z_BUF_ERROR;
if (last & 1) { /* code must be < 256 */
strm->msg = "invalid lzw code";
strm->msg = (char *)"invalid lzw code";
return Z_DATA_ERROR;
}
rem = (unsigned)last >> 1; /* remaining 7 bits */
@@ -313,7 +314,7 @@ local int lunpipe(unsigned have, unsigned char *next, struct ind *indp,
to detect random or corrupted input after a compress header.
In any case, the prev > end check must be retained. */
if (code != end + 1 || prev > end) {
strm->msg = "invalid lzw code";
strm->msg = (char *)"invalid lzw code";
return Z_DATA_ERROR;
}
match[stack++] = (unsigned char)final;
@@ -394,7 +395,7 @@ local int gunpipe(z_stream *strm, int infile, int outfile)
break; /* empty gzip stream is ok */
}
if (last != 31 || (NEXT() != 139 && last != 157)) {
strm->msg = "incorrect header check";
strm->msg = (char *)"incorrect header check";
ret = first ? Z_DATA_ERROR : Z_ERRNO;
break; /* not a gzip or compress header */
}
@@ -410,7 +411,7 @@ local int gunpipe(z_stream *strm, int infile, int outfile)
ret = Z_BUF_ERROR;
if (NEXT() != 8) { /* only deflate method allowed */
if (last == -1) break;
strm->msg = "unknown compression method";
strm->msg = (char *)"unknown compression method";
ret = Z_DATA_ERROR;
break;
}
@@ -423,7 +424,7 @@ local int gunpipe(z_stream *strm, int infile, int outfile)
NEXT();
if (last == -1) break;
if (flags & 0xe0) {
strm->msg = "unknown header flags set";
strm->msg = (char *)"unknown header flags set";
ret = Z_DATA_ERROR;
break;
}
@@ -476,7 +477,7 @@ local int gunpipe(z_stream *strm, int infile, int outfile)
NEXT() != ((outd.crc >> 24) & 0xff)) {
/* crc error */
if (last != -1) {
strm->msg = "incorrect data check";
strm->msg = (char *)"incorrect data check";
ret = Z_DATA_ERROR;
}
break;
@@ -487,7 +488,7 @@ local int gunpipe(z_stream *strm, int infile, int outfile)
NEXT() != ((outd.total >> 24) & 0xff)) {
/* length error */
if (last != -1) {
strm->msg = "incorrect length check";
strm->msg = (char *)"incorrect length check";
ret = Z_DATA_ERROR;
}
break;
@@ -641,7 +642,7 @@ int main(int argc, char **argv)
argv++;
test = 0;
if (argc && strcmp(*argv, "-h") == 0) {
fprintf(stderr, "gun 1.2 (20 Mar 2005)\n");
fprintf(stderr, "gun 1.3 (12 Jun 2005)\n");
fprintf(stderr, "Copyright (c) 2005 Mark Adler\n");
fprintf(stderr, "usage: gun [-t] [file1.gz [file2.Z ...]]\n");
return 0;