From owner-svn-src-all@FreeBSD.ORG Wed Mar 5 01:33:18 2014 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 18C227DD; Wed, 5 Mar 2014 01:33:18 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 03E5AA24; Wed, 5 Mar 2014 01:33:18 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.8/8.14.8) with ESMTP id s251XHeE024090; Wed, 5 Mar 2014 01:33:17 GMT (envelope-from delphij@svn.freebsd.org) Received: (from delphij@localhost) by svn.freebsd.org (8.14.8/8.14.8/Submit) id s251XFkH024070; Wed, 5 Mar 2014 01:33:15 GMT (envelope-from delphij@svn.freebsd.org) Message-Id: <201403050133.s251XFkH024070@svn.freebsd.org> From: Xin LI Date: Wed, 5 Mar 2014 01:33:15 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r262764 - in head/sys/contrib/xz-embedded: . linux/include/linux linux/lib linux/lib/xz linux/scripts userspace X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Mar 2014 01:33:18 -0000 Author: delphij Date: Wed Mar 5 01:33:15 2014 New Revision: 262764 URL: http://svnweb.freebsd.org/changeset/base/262764 Log: MFV r262756: Import xz-embedded from git. This is from commit hash '6a8a2364434763a033781f6b2a605ace9a021013'. This makes it possible to use CRC64 but for now it's intentionally not added to build. Added: head/sys/contrib/xz-embedded/linux/lib/xz/xz_crc64.c - copied unchanged from r262756, vendor/xz-embedded/dist/linux/lib/xz/xz_crc64.c head/sys/contrib/xz-embedded/userspace/bytetest.c - copied unchanged from r262756, vendor/xz-embedded/dist/userspace/bytetest.c Modified: head/sys/contrib/xz-embedded/README head/sys/contrib/xz-embedded/linux/include/linux/xz.h head/sys/contrib/xz-embedded/linux/lib/decompress_unxz.c head/sys/contrib/xz-embedded/linux/lib/xz/Kconfig head/sys/contrib/xz-embedded/linux/lib/xz/xz_dec_stream.c head/sys/contrib/xz-embedded/linux/scripts/xz_wrap.sh head/sys/contrib/xz-embedded/userspace/Makefile head/sys/contrib/xz-embedded/userspace/boottest.c head/sys/contrib/xz-embedded/userspace/xz_config.h head/sys/contrib/xz-embedded/userspace/xzminidec.c Directory Properties: head/sys/contrib/xz-embedded/ (props changed) Modified: head/sys/contrib/xz-embedded/README ============================================================================== --- head/sys/contrib/xz-embedded/README Wed Mar 5 01:17:47 2014 (r262763) +++ head/sys/contrib/xz-embedded/README Wed Mar 5 01:33:15 2014 (r262764) @@ -7,7 +7,7 @@ XZ Embedded XZ Embedded was written for use in the Linux kernel, but the code can be easily used in other environments too, including regular userspace - applications. + applications. See userspace/xzminidec.c for an example program. This README contains information that is useful only when the copy of XZ Embedded isn't part of the Linux kernel tree. You should also @@ -84,6 +84,42 @@ Embedding into userspace applications environment. Probably you should at least skim through it even if the default file works as is. +Integrity check support + + XZ Embedded always supports the integrity check types None and + CRC32. Support for CRC64 is optional. SHA-256 is currently not + supported in XZ Embedded although the .xz format does support it. + The xz tool from XZ Utils uses CRC64 by default, but CRC32 is usually + enough in embedded systems to keep the code size smaller. + + If you want support for CRC64, you need to copy linux/lib/xz/xz_crc64.c + into your application, and #define XZ_USE_CRC64 in xz_config.h or in + compiler flags. + + When using the internal CRC32 or CRC64, their lookup tables need to be + initialized with xz_crc32_init() and xz_crc64_init(), respectively. + See xz.h for details. + + To use external CRC32 or CRC64 code instead of the code from + xz_crc32.c or xz_crc64.c, the following #defines may be used + in xz_config.h or in compiler flags: + + #define XZ_INTERNAL_CRC32 0 + #define XZ_INTERNAL_CRC64 0 + + Then it is up to you to provide compatible xz_crc32() or xz_crc64() + functions. + + If the .xz file being decompressed uses an integrity check type that + isn't supported by XZ Embedded, it is treated as an error and the + file cannot be decompressed. For multi-call mode, this can be modified + by #defining XZ_DEC_ANY_CHECK. Then xz_dec_run() will return + XZ_UNSUPPORTED_CHECK when unsupported check type is detected. After + that decompression can be continued normally except that the + integrity check won't be verified. In single-call mode there's + no way to continue decoding, so XZ_DEC_ANY_CHECK is almost useless + in single-call mode. + BCJ filter support If you want support for one or more BCJ filters, you need to copy also Modified: head/sys/contrib/xz-embedded/linux/include/linux/xz.h ============================================================================== --- head/sys/contrib/xz-embedded/linux/include/linux/xz.h Wed Mar 5 01:17:47 2014 (r262763) +++ head/sys/contrib/xz-embedded/linux/include/linux/xz.h Wed Mar 5 01:33:15 2014 (r262764) @@ -256,6 +256,22 @@ XZ_EXTERN void xz_dec_end(struct xz_dec # endif #endif +/* + * If CRC64 support has been enabled with XZ_USE_CRC64, a CRC64 + * implementation is needed too. + */ +#ifndef XZ_USE_CRC64 +# undef XZ_INTERNAL_CRC64 +# define XZ_INTERNAL_CRC64 0 +#endif +#ifndef XZ_INTERNAL_CRC64 +# ifdef __KERNEL__ +# error Using CRC64 in the kernel has not been implemented. +# else +# define XZ_INTERNAL_CRC64 1 +# endif +#endif + #if XZ_INTERNAL_CRC32 /* * This must be called before any other xz_* function to initialize @@ -271,6 +287,21 @@ XZ_EXTERN void xz_crc32_init(void); XZ_EXTERN uint32_t xz_crc32(const uint8_t *buf, size_t size, uint32_t crc); #endif +#if XZ_INTERNAL_CRC64 +/* + * This must be called before any other xz_* function (except xz_crc32_init()) + * to initialize the CRC64 lookup table. + */ +XZ_EXTERN void xz_crc64_init(void); + +/* + * Update CRC64 value using the polynomial from ECMA-182. To start a new + * calculation, the third argument must be zero. To continue the calculation, + * the previously returned value is passed as the third argument. + */ +XZ_EXTERN uint64_t xz_crc64(const uint8_t *buf, size_t size, uint64_t crc); +#endif + #ifdef __cplusplus } #endif Modified: head/sys/contrib/xz-embedded/linux/lib/decompress_unxz.c ============================================================================== --- head/sys/contrib/xz-embedded/linux/lib/decompress_unxz.c Wed Mar 5 01:17:47 2014 (r262763) +++ head/sys/contrib/xz-embedded/linux/lib/decompress_unxz.c Wed Mar 5 01:33:15 2014 (r262764) @@ -83,7 +83,7 @@ * safety_margin = 128 + uncompressed_size * 8 / 32768 + 65536 * = 128 + (uncompressed_size >> 12) + 65536 * - * For comparision, according to arch/x86/boot/compressed/misc.c, the + * For comparison, according to arch/x86/boot/compressed/misc.c, the * equivalent formula for Deflate is this: * * safety_margin = 18 + (uncompressed_size >> 12) + 32768 Modified: head/sys/contrib/xz-embedded/linux/lib/xz/Kconfig ============================================================================== --- head/sys/contrib/xz-embedded/linux/lib/xz/Kconfig Wed Mar 5 01:17:47 2014 (r262763) +++ head/sys/contrib/xz-embedded/linux/lib/xz/Kconfig Wed Mar 5 01:33:15 2014 (r262764) @@ -6,42 +6,40 @@ config XZ_DEC the .xz file format as the container. For integrity checking, CRC32 is supported. See Documentation/xz.txt for more information. +if XZ_DEC + config XZ_DEC_X86 - bool "x86 BCJ filter decoder" if EXPERT - default y - depends on XZ_DEC + bool "x86 BCJ filter decoder" + default y if X86 select XZ_DEC_BCJ config XZ_DEC_POWERPC - bool "PowerPC BCJ filter decoder" if EXPERT - default y - depends on XZ_DEC + bool "PowerPC BCJ filter decoder" + default y if PPC select XZ_DEC_BCJ config XZ_DEC_IA64 - bool "IA-64 BCJ filter decoder" if EXPERT - default y - depends on XZ_DEC + bool "IA-64 BCJ filter decoder" + default y if IA64 select XZ_DEC_BCJ config XZ_DEC_ARM - bool "ARM BCJ filter decoder" if EXPERT - default y - depends on XZ_DEC + bool "ARM BCJ filter decoder" + default y if ARM select XZ_DEC_BCJ config XZ_DEC_ARMTHUMB - bool "ARM-Thumb BCJ filter decoder" if EXPERT - default y - depends on XZ_DEC + bool "ARM-Thumb BCJ filter decoder" + default y if (ARM && ARM_THUMB) select XZ_DEC_BCJ config XZ_DEC_SPARC - bool "SPARC BCJ filter decoder" if EXPERT - default y - depends on XZ_DEC + bool "SPARC BCJ filter decoder" + default y if SPARC select XZ_DEC_BCJ +endif + config XZ_DEC_BCJ bool default n Copied: head/sys/contrib/xz-embedded/linux/lib/xz/xz_crc64.c (from r262756, vendor/xz-embedded/dist/linux/lib/xz/xz_crc64.c) ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/contrib/xz-embedded/linux/lib/xz/xz_crc64.c Wed Mar 5 01:33:15 2014 (r262764, copy of r262756, vendor/xz-embedded/dist/linux/lib/xz/xz_crc64.c) @@ -0,0 +1,50 @@ +/* + * CRC64 using the polynomial from ECMA-182 + * + * This file is similar to xz_crc32.c. See the comments there. + * + * Authors: Lasse Collin + * Igor Pavlov + * + * This file has been put into the public domain. + * You can do whatever you want with this file. + */ + +#include "xz_private.h" + +#ifndef STATIC_RW_DATA +# define STATIC_RW_DATA static +#endif + +STATIC_RW_DATA uint64_t xz_crc64_table[256]; + +XZ_EXTERN void xz_crc64_init(void) +{ + const uint64_t poly = 0xC96C5795D7870F42; + + uint32_t i; + uint32_t j; + uint64_t r; + + for (i = 0; i < 256; ++i) { + r = i; + for (j = 0; j < 8; ++j) + r = (r >> 1) ^ (poly & ~((r & 1) - 1)); + + xz_crc64_table[i] = r; + } + + return; +} + +XZ_EXTERN uint64_t xz_crc64(const uint8_t *buf, size_t size, uint64_t crc) +{ + crc = ~crc; + + while (size != 0) { + crc = xz_crc64_table[*buf++ ^ (crc & 0xFF)] ^ (crc >> 8); + --size; + } + + return ~crc; +} Modified: head/sys/contrib/xz-embedded/linux/lib/xz/xz_dec_stream.c ============================================================================== --- head/sys/contrib/xz-embedded/linux/lib/xz/xz_dec_stream.c Wed Mar 5 01:17:47 2014 (r262763) +++ head/sys/contrib/xz-embedded/linux/lib/xz/xz_dec_stream.c Wed Mar 5 01:33:15 2014 (r262764) @@ -10,6 +10,12 @@ #include "xz_private.h" #include "xz_stream.h" +#ifdef XZ_USE_CRC64 +# define IS_CRC64(check_type) ((check_type) == XZ_CHECK_CRC64) +#else +# define IS_CRC64(check_type) false +#endif + /* Hash used to validate the Index field */ struct xz_dec_hash { vli_type unpadded; @@ -42,8 +48,13 @@ struct xz_dec { size_t in_start; size_t out_start; +#ifdef XZ_USE_CRC64 + /* CRC32 or CRC64 value in Block or CRC32 value in Index */ + uint64_t crc; +#else /* CRC32 value in Block or Index */ - uint32_t crc32; + uint32_t crc; +#endif /* Type of the integrity check calculated from uncompressed data */ enum xz_check check_type; @@ -208,8 +219,8 @@ static enum xz_ret dec_vli(struct xz_dec * the observed compressed and uncompressed sizes of the Block so that * they don't exceed the values possibly stored in the Block Header * (validation assumes that no integer overflow occurs, since vli_type - * is normally uint64_t). Update the CRC32 if presence of the CRC32 - * field was indicated in Stream Header. + * is normally uint64_t). Update the CRC32 or CRC64 value if presence of + * the CRC32 or CRC64 field was indicated in Stream Header. * * Once the decoding is finished, validate that the observed sizes match * the sizes possibly stored in the Block Header. Update the hash and @@ -242,8 +253,13 @@ static enum xz_ret dec_block(struct xz_d return XZ_DATA_ERROR; if (s->check_type == XZ_CHECK_CRC32) - s->crc32 = xz_crc32(b->out + s->out_start, - b->out_pos - s->out_start, s->crc32); + s->crc = xz_crc32(b->out + s->out_start, + b->out_pos - s->out_start, s->crc); +#ifdef XZ_USE_CRC64 + else if (s->check_type == XZ_CHECK_CRC64) + s->crc = xz_crc64(b->out + s->out_start, + b->out_pos - s->out_start, s->crc); +#endif if (ret == XZ_STREAM_END) { if (s->block_header.compressed != VLI_UNKNOWN @@ -264,6 +280,8 @@ static enum xz_ret dec_block(struct xz_d #else if (s->check_type == XZ_CHECK_CRC32) s->block.hash.unpadded += 4; + else if (IS_CRC64(s->check_type)) + s->block.hash.unpadded += 8; #endif s->block.hash.uncompressed += s->block.uncompressed; @@ -282,7 +300,7 @@ static void index_update(struct xz_dec * { size_t in_used = b->in_pos - s->in_start; s->index.size += in_used; - s->crc32 = xz_crc32(b->in + s->in_start, in_used, s->crc32); + s->crc = xz_crc32(b->in + s->in_start, in_used, s->crc); } /* @@ -340,23 +358,25 @@ static enum xz_ret dec_index(struct xz_d } /* - * Validate that the next four input bytes match the value of s->crc32. - * s->pos must be zero when starting to validate the first byte. + * Validate that the next four or eight input bytes match the value + * of s->crc. s->pos must be zero when starting to validate the first byte. + * The "bits" argument allows using the same code for both CRC32 and CRC64. */ -static enum xz_ret crc32_validate(struct xz_dec *s, struct xz_buf *b) +static enum xz_ret crc_validate(struct xz_dec *s, struct xz_buf *b, + uint32_t bits) { do { if (b->in_pos == b->in_size) return XZ_OK; - if (((s->crc32 >> s->pos) & 0xFF) != b->in[b->in_pos++]) + if (((s->crc >> s->pos) & 0xFF) != b->in[b->in_pos++]) return XZ_DATA_ERROR; s->pos += 8; - } while (s->pos < 32); + } while (s->pos < bits); - s->crc32 = 0; + s->crc = 0; s->pos = 0; return XZ_STREAM_END; @@ -397,10 +417,11 @@ static enum xz_ret dec_stream_header(str return XZ_OPTIONS_ERROR; /* - * Of integrity checks, we support only none (Check ID = 0) and - * CRC32 (Check ID = 1). However, if XZ_DEC_ANY_CHECK is defined, - * we will accept other check types too, but then the check won't - * be verified and a warning (XZ_UNSUPPORTED_CHECK) will be given. + * Of integrity checks, we support none (Check ID = 0), + * CRC32 (Check ID = 1), and optionally CRC64 (Check ID = 4). + * However, if XZ_DEC_ANY_CHECK is defined, we will accept other + * check types too, but then the check won't be verified and + * a warning (XZ_UNSUPPORTED_CHECK) will be given. */ s->check_type = s->temp.buf[HEADER_MAGIC_SIZE + 1]; @@ -408,10 +429,10 @@ static enum xz_ret dec_stream_header(str if (s->check_type > XZ_CHECK_MAX) return XZ_OPTIONS_ERROR; - if (s->check_type > XZ_CHECK_CRC32) + if (s->check_type > XZ_CHECK_CRC32 && !IS_CRC64(s->check_type)) return XZ_UNSUPPORTED_CHECK; #else - if (s->check_type > XZ_CHECK_CRC32) + if (s->check_type > XZ_CHECK_CRC32 && !IS_CRC64(s->check_type)) return XZ_OPTIONS_ERROR; #endif @@ -645,7 +666,12 @@ static enum xz_ret dec_main(struct xz_de case SEQ_BLOCK_CHECK: if (s->check_type == XZ_CHECK_CRC32) { - ret = crc32_validate(s, b); + ret = crc_validate(s, b, 32); + if (ret != XZ_STREAM_END) + return ret; + } + else if (IS_CRC64(s->check_type)) { + ret = crc_validate(s, b, 64); if (ret != XZ_STREAM_END) return ret; } @@ -688,7 +714,7 @@ static enum xz_ret dec_main(struct xz_de s->sequence = SEQ_INDEX_CRC32; case SEQ_INDEX_CRC32: - ret = crc32_validate(s, b); + ret = crc_validate(s, b, 32); if (ret != XZ_STREAM_END) return ret; @@ -802,7 +828,7 @@ XZ_EXTERN void xz_dec_reset(struct xz_de s->sequence = SEQ_STREAM_HEADER; s->allow_buf_error = false; s->pos = 0; - s->crc32 = 0; + s->crc = 0; memzero(&s->block, sizeof(s->block)); memzero(&s->index, sizeof(s->index)); s->temp.pos = 0; Modified: head/sys/contrib/xz-embedded/linux/scripts/xz_wrap.sh ============================================================================== --- head/sys/contrib/xz-embedded/linux/scripts/xz_wrap.sh Wed Mar 5 01:17:47 2014 (r262763) +++ head/sys/contrib/xz-embedded/linux/scripts/xz_wrap.sh Wed Mar 5 01:33:15 2014 (r262764) @@ -12,8 +12,8 @@ BCJ= LZMA2OPTS= -case $ARCH in - x86|x86_64) BCJ=--x86 ;; +case $SRCARCH in + x86) BCJ=--x86 ;; powerpc) BCJ=--powerpc ;; ia64) BCJ=--ia64; LZMA2OPTS=pb=4 ;; arm) BCJ=--arm ;; Modified: head/sys/contrib/xz-embedded/userspace/Makefile ============================================================================== --- head/sys/contrib/xz-embedded/userspace/Makefile Wed Mar 5 01:17:47 2014 (r262763) +++ head/sys/contrib/xz-embedded/userspace/Makefile Wed Mar 5 01:33:15 2014 (r262764) @@ -10,11 +10,11 @@ CC = gcc -std=gnu89 BCJ_CPPFLAGS = -DXZ_DEC_X86 -DXZ_DEC_POWERPC -DXZ_DEC_IA64 \ -DXZ_DEC_ARM -DXZ_DEC_ARMTHUMB -DXZ_DEC_SPARC -CPPFLAGS = -DXZ_DEC_ANY_CHECK +CPPFLAGS = -DXZ_USE_CRC64 -DXZ_DEC_ANY_CHECK CFLAGS = -ggdb3 -O2 -pedantic -Wall -Wextra RM = rm -f VPATH = ../linux/include/linux ../linux/lib/xz -COMMON_SRCS = xz_crc32.c xz_dec_stream.c xz_dec_lzma2.c xz_dec_bcj.c +COMMON_SRCS = xz_crc32.c xz_crc64.c xz_dec_stream.c xz_dec_lzma2.c xz_dec_bcj.c COMMON_OBJS = $(COMMON_SRCS:.c=.o) XZMINIDEC_OBJS = xzminidec.o BYTETEST_OBJS = bytetest.o Modified: head/sys/contrib/xz-embedded/userspace/boottest.c ============================================================================== --- head/sys/contrib/xz-embedded/userspace/boottest.c Wed Mar 5 01:17:47 2014 (r262763) +++ head/sys/contrib/xz-embedded/userspace/boottest.c Wed Mar 5 01:33:15 2014 (r262764) @@ -19,6 +19,9 @@ static void error(/*const*/ char *msg) fprintf(stderr, "%s\n", msg); } +/* Disable the CRC64 support even if it was enabled in the Makefile. */ +#undef XZ_USE_CRC64 + #include "../linux/lib/decompress_unxz.c" static uint8_t in[1024 * 1024]; Copied: head/sys/contrib/xz-embedded/userspace/bytetest.c (from r262756, vendor/xz-embedded/dist/userspace/bytetest.c) ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/contrib/xz-embedded/userspace/bytetest.c Wed Mar 5 01:33:15 2014 (r262764, copy of r262756, vendor/xz-embedded/dist/userspace/bytetest.c) @@ -0,0 +1,135 @@ +/* + * Lazy test for the case when the output size is known + * + * Author: Lasse Collin + * + * This file has been put into the public domain. + * You can do whatever you want with this file. + */ + +#include +#include +#include +#include +#include "xz.h" + +static uint8_t in[1]; +static uint8_t out[BUFSIZ]; + +int main(int argc, char **argv) +{ + struct xz_buf b; + struct xz_dec *s; + enum xz_ret ret; + const char *msg; + size_t uncomp_size; + + if (argc != 2) { + fputs("Give uncompressed size as the argument", stderr); + return 1; + } + + uncomp_size = atoi(argv[1]); + + xz_crc32_init(); + + /* + * Support up to 64 MiB dictionary. The actually needed memory + * is allocated once the headers have been parsed. + */ + s = xz_dec_init(XZ_DYNALLOC, 1 << 26); + if (s == NULL) { + msg = "Memory allocation failed\n"; + goto error; + } + + b.in = in; + b.in_pos = 0; + b.in_size = 0; + b.out = out; + b.out_pos = 0; + b.out_size = uncomp_size < BUFSIZ ? uncomp_size : BUFSIZ; + + while (true) { + if (b.in_pos == b.in_size) { + b.in_size = fread(in, 1, sizeof(in), stdin); + b.in_pos = 0; + } + + ret = xz_dec_run(s, &b); + + if (b.out_pos == sizeof(out)) { + if (fwrite(out, 1, b.out_pos, stdout) != b.out_pos) { + msg = "Write error\n"; + goto error; + } + + uncomp_size -= b.out_pos; + b.out_pos = 0; + b.out_size = uncomp_size < BUFSIZ + ? uncomp_size : BUFSIZ; + } + + if (ret == XZ_OK) + continue; + +#ifdef XZ_DEC_ANY_CHECK + if (ret == XZ_UNSUPPORTED_CHECK) { + fputs(argv[0], stderr); + fputs(": ", stderr); + fputs("Unsupported check; not verifying " + "file integrity\n", stderr); + continue; + } +#endif + + if (uncomp_size != b.out_pos) { + msg = "Uncompressed size doesn't match\n"; + goto error; + } + + if (fwrite(out, 1, b.out_pos, stdout) != b.out_pos + || fclose(stdout)) { + msg = "Write error\n"; + goto error; + } + + switch (ret) { + case XZ_STREAM_END: + xz_dec_end(s); + return 0; + + case XZ_MEM_ERROR: + msg = "Memory allocation failed\n"; + goto error; + + case XZ_MEMLIMIT_ERROR: + msg = "Memory usage limit reached\n"; + goto error; + + case XZ_FORMAT_ERROR: + msg = "Not a .xz file\n"; + goto error; + + case XZ_OPTIONS_ERROR: + msg = "Unsupported options in the .xz headers\n"; + goto error; + + case XZ_DATA_ERROR: + case XZ_BUF_ERROR: + msg = "File is corrupt\n"; + goto error; + + default: + msg = "Bug!\n"; + goto error; + } + } + +error: + xz_dec_end(s); + fputs(argv[0], stderr); + fputs(": ", stderr); + fputs(msg, stderr); + return 1; +} Modified: head/sys/contrib/xz-embedded/userspace/xz_config.h ============================================================================== --- head/sys/contrib/xz-embedded/userspace/xz_config.h Wed Mar 5 01:17:47 2014 (r262763) +++ head/sys/contrib/xz-embedded/userspace/xz_config.h Wed Mar 5 01:33:15 2014 (r262764) @@ -10,6 +10,9 @@ #ifndef XZ_CONFIG_H #define XZ_CONFIG_H +/* Uncomment to enable CRC64 support. */ +/* #define XZ_USE_CRC64 */ + /* Uncomment as needed to enable BCJ filter decoders. */ /* #define XZ_DEC_X86 */ /* #define XZ_DEC_POWERPC */ @@ -18,7 +21,19 @@ /* #define XZ_DEC_ARMTHUMB */ /* #define XZ_DEC_SPARC */ -#include +/* + * MSVC doesn't support modern C but XZ Embedded is mostly C89 + * so these are enough. + */ +#ifdef _MSC_VER +typedef unsigned char bool; +# define true 1 +# define false 0 +# define inline __inline +#else +# include +#endif + #include #include Modified: head/sys/contrib/xz-embedded/userspace/xzminidec.c ============================================================================== --- head/sys/contrib/xz-embedded/userspace/xzminidec.c Wed Mar 5 01:17:47 2014 (r262763) +++ head/sys/contrib/xz-embedded/userspace/xzminidec.c Wed Mar 5 01:33:15 2014 (r262764) @@ -37,6 +37,9 @@ int main(int argc, char **argv) } xz_crc32_init(); +#ifdef XZ_USE_CRC64 + xz_crc64_init(); +#endif /* * Support up to 64 MiB dictionary. The actually needed memory