1 files changed, 0 insertions, 353 deletions

diff --git a/lib/libarchive/archive_read_support_compression_bzip2.c b/lib/libarchive/archive_read_support_compression_bzip2.c
deleted file mode 100644
index 891742f653fdd..0000000000000
--- a/lib/libarchive/archive_read_support_compression_bzip2.c
+++ /dev/null
@@ -1,353 +0,0 @@
-/*-
- * Copyright (c) 2003-2007 Tim Kientzle
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "archive_platform.h"
-
-__FBSDID("$FreeBSD$");
-
-#ifdef HAVE_ERRNO_H
-#include <errno.h>
-#endif
-#include <stdio.h>
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_STRING_H
-#include <string.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#ifdef HAVE_BZLIB_H
-#include <bzlib.h>
-#endif
-
-#include "archive.h"
-#include "archive_private.h"
-#include "archive_read_private.h"
-
-#if defined(HAVE_BZLIB_H) && defined(BZ_CONFIG_ERROR)
-struct private_data {
-	bz_stream	 stream;
-	char		*out_block;
-	size_t		 out_block_size;
-	char		 valid; /* True = decompressor is initialized */
-	char		 eof; /* True = found end of compressed data. */
-};
-
-/* Bzip2 filter */
-static ssize_t	bzip2_filter_read(struct archive_read_filter *, const void **);
-static int	bzip2_filter_close(struct archive_read_filter *);
-#endif
-
-/*
- * Note that we can detect bzip2 archives even if we can't decompress
- * them.  (In fact, we like detecting them because we can give better
- * error messages.)  So the bid framework here gets compiled even
- * if bzlib is unavailable.
- */
-static int	bzip2_reader_bid(struct archive_read_filter_bidder *, struct archive_read_filter *);
-static int	bzip2_reader_init(struct archive_read_filter *);
-static int	bzip2_reader_free(struct archive_read_filter_bidder *);
-
-int
-archive_read_support_compression_bzip2(struct archive *_a)
-{
-	struct archive_read *a = (struct archive_read *)_a;
-	struct archive_read_filter_bidder *reader = __archive_read_get_bidder(a);
-
-	if (reader == NULL)
-		return (ARCHIVE_FATAL);
-
-	reader->data = NULL;
-	reader->bid = bzip2_reader_bid;
-	reader->init = bzip2_reader_init;
-	reader->options = NULL;
-	reader->free = bzip2_reader_free;
-#if defined(HAVE_BZLIB_H) && defined(BZ_CONFIG_ERROR)
-	return (ARCHIVE_OK);
-#else
-	archive_set_error(_a, ARCHIVE_ERRNO_MISC,
-	    "Using external bunzip2 program");
-	return (ARCHIVE_WARN);
-#endif
-}
-
-static int
-bzip2_reader_free(struct archive_read_filter_bidder *self){
-	(void)self; /* UNUSED */
-	return (ARCHIVE_OK);
-}
-
-/*
- * Test whether we can handle this data.
- *
- * This logic returns zero if any part of the signature fails.  It
- * also tries to Do The Right Thing if a very short buffer prevents us
- * from verifying as much as we would like.
- */
-static int
-bzip2_reader_bid(struct archive_read_filter_bidder *self, struct archive_read_filter *filter)
-{
-	const unsigned char *buffer;
-	ssize_t avail;
-	int bits_checked;
-
-	(void)self; /* UNUSED */
-
-	/* Minimal bzip2 archive is 14 bytes. */
-	buffer = __archive_read_filter_ahead(filter, 14, &avail);
-	if (buffer == NULL)
-		return (0);
-
-	/* First three bytes must be "BZh" */
-	bits_checked = 0;
-	if (buffer[0] != 'B' || buffer[1] != 'Z' || buffer[2] != 'h')
-		return (0);
-	bits_checked += 24;
-
-	/* Next follows a compression flag which must be an ASCII digit. */
-	if (buffer[3] < '1' || buffer[3] > '9')
-		return (0);
-	bits_checked += 5;
-
-	/* After BZh[1-9], there must be either a data block
-	 * which begins with 0x314159265359 or an end-of-data
-	 * marker of 0x177245385090. */
-	if (memcmp(buffer + 4, "\x31\x41\x59\x26\x53\x59", 6) == 0)
-		bits_checked += 48;
-	else if (memcmp(buffer + 4, "\x17\x72\x45\x38\x50\x90", 6) == 0)
-		bits_checked += 48;
-	else
-		return (0);
-
-	return (bits_checked);
-}
-
-#if !defined(HAVE_BZLIB_H) || !defined(BZ_CONFIG_ERROR)
-
-/*
- * If we don't have the library on this system, we can't actually do the
- * decompression.  We can, however, still detect compressed archives
- * and emit a useful message.
- */
-static int
-bzip2_reader_init(struct archive_read_filter *self)
-{
-	int r;
-
-	r = __archive_read_program(self, "bunzip2");
-	/* Note: We set the format here even if __archive_read_program()
-	 * above fails.  We do, after all, know what the format is
-	 * even if we weren't able to read it. */
-	self->code = ARCHIVE_COMPRESSION_BZIP2;
-	self->name = "bzip2";
-	return (r);
-}
-
-
-#else
-
-/*
- * Setup the callbacks.
- */
-static int
-bzip2_reader_init(struct archive_read_filter *self)
-{
-	static const size_t out_block_size = 64 * 1024;
-	void *out_block;
-	struct private_data *state;
-
-	self->code = ARCHIVE_COMPRESSION_BZIP2;
-	self->name = "bzip2";
-
-	state = (struct private_data *)calloc(sizeof(*state), 1);
-	out_block = (unsigned char *)malloc(out_block_size);
-	if (self == NULL || state == NULL || out_block == NULL) {
-		archive_set_error(&self->archive->archive, ENOMEM,
-		    "Can't allocate data for bzip2 decompression");
-		free(out_block);
-		free(state);
-		return (ARCHIVE_FATAL);
-	}
-
-	self->data = state;
-	state->out_block_size = out_block_size;
-	state->out_block = out_block;
-	self->read = bzip2_filter_read;
-	self->skip = NULL; /* not supported */
-	self->close = bzip2_filter_close;
-
-	return (ARCHIVE_OK);
-}
-
-/*
- * Return the next block of decompressed data.
- */
-static ssize_t
-bzip2_filter_read(struct archive_read_filter *self, const void **p)
-{
-	struct private_data *state;
-	size_t decompressed;
-	const char *read_buf;
-	ssize_t ret;
-
-	state = (struct private_data *)self->data;
-
-	if (state->eof) {
-		*p = NULL;
-		return (0);
-	}
-
-	/* Empty our output buffer. */
-	state->stream.next_out = state->out_block;
-	state->stream.avail_out = state->out_block_size;
-
-	/* Try to fill the output buffer. */
-	for (;;) {
-		if (!state->valid) {
-			if (bzip2_reader_bid(self->bidder, self->upstream) == 0) {
-				state->eof = 1;
-				*p = state->out_block;
-				decompressed = state->stream.next_out
-				    - state->out_block;
-				return (decompressed);
-			}
-			/* Initialize compression library. */
-			ret = BZ2_bzDecompressInit(&(state->stream),
-					   0 /* library verbosity */,
-					   0 /* don't use low-mem algorithm */);
-
-			/* If init fails, try low-memory algorithm instead. */
-			if (ret == BZ_MEM_ERROR)
-				ret = BZ2_bzDecompressInit(&(state->stream),
-					   0 /* library verbosity */,
-					   1 /* do use low-mem algo */);
-
-			if (ret != BZ_OK) {
-				const char *detail = NULL;
-				int err = ARCHIVE_ERRNO_MISC;
-				switch (ret) {
-				case BZ_PARAM_ERROR:
-					detail = "invalid setup parameter";
-					break;
-				case BZ_MEM_ERROR:
-					err = ENOMEM;
-					detail = "out of memory";
-					break;
-				case BZ_CONFIG_ERROR:
-					detail = "mis-compiled library";
-					break;
-				}
-				archive_set_error(&self->archive->archive, err,
-				    "Internal error initializing decompressor%s%s",
-				    detail == NULL ? "" : ": ",
-				    detail);
-				return (ARCHIVE_FATAL);
-			}
-			state->valid = 1;
-		}
-
-		/* stream.next_in is really const, but bzlib
-		 * doesn't declare it so. <sigh> */
-		read_buf =
-		    __archive_read_filter_ahead(self->upstream, 1, &ret);
-		if (read_buf == NULL)
-			return (ARCHIVE_FATAL);
-		state->stream.next_in = (char *)(uintptr_t)read_buf;
-		state->stream.avail_in = ret;
-		/* There is no more data, return whatever we have. */
-		if (ret == 0) {
-			state->eof = 1;
-			*p = state->out_block;
-			decompressed = state->stream.next_out
-			    - state->out_block;
-			return (decompressed);
-		}
-
-		/* Decompress as much as we can in one pass. */
-		ret = BZ2_bzDecompress(&(state->stream));
-		__archive_read_filter_consume(self->upstream,
-		    state->stream.next_in - read_buf);
-
-		switch (ret) {
-		case BZ_STREAM_END: /* Found end of stream. */
-			switch (BZ2_bzDecompressEnd(&(state->stream))) {
-			case BZ_OK:
-				break;
-			default:
-				archive_set_error(&(self->archive->archive),
-					  ARCHIVE_ERRNO_MISC,
-					  "Failed to clean up decompressor");
-				return (ARCHIVE_FATAL);
-			}
-			state->valid = 0;
-			/* FALLTHROUGH */
-		case BZ_OK: /* Decompressor made some progress. */
-			/* If we filled our buffer, update stats and return. */
-			if (state->stream.avail_out == 0) {
-				*p = state->out_block;
-				decompressed = state->stream.next_out
-				    - state->out_block;
-				return (decompressed);
-			}
-			break;
-		default: /* Return an error. */
-			archive_set_error(&self->archive->archive,
-			    ARCHIVE_ERRNO_MISC, "bzip decompression failed");
-			return (ARCHIVE_FATAL);
-		}
-	}
-}
-
-/*
- * Clean up the decompressor.
- */
-static int
-bzip2_filter_close(struct archive_read_filter *self)
-{
-	struct private_data *state;
-	int ret = ARCHIVE_OK;
-
-	state = (struct private_data *)self->data;
-
-	if (state->valid) {
-		switch (BZ2_bzDecompressEnd(&state->stream)) {
-		case BZ_OK:
-			break;
-		default:
-			archive_set_error(&self->archive->archive,
-					  ARCHIVE_ERRNO_MISC,
-					  "Failed to clean up decompressor");
-			ret = ARCHIVE_FATAL;
-		}
-	}
-
-	free(state->out_block);
-	free(state);
-	return (ret);
-}
-
-#endif /* HAVE_BZLIB_H && BZ_CONFIG_ERROR */