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-rw-r--r--lib/fstream/uncompress/autodetect.c55
-rw-r--r--lib/fstream/uncompress/bzip2.c118
-rw-r--r--lib/fstream/uncompress/gzip.c106
-rw-r--r--lib/fstream/uncompress/istream_compressor.c69
-rw-r--r--lib/fstream/uncompress/xz.c96
-rw-r--r--lib/fstream/uncompress/zstd.c81
6 files changed, 0 insertions, 525 deletions
diff --git a/lib/fstream/uncompress/autodetect.c b/lib/fstream/uncompress/autodetect.c
deleted file mode 100644
index 61628f8..0000000
--- a/lib/fstream/uncompress/autodetect.c
+++ /dev/null
@@ -1,55 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-/*
- * autodetect.c
- *
- * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
- */
-#include "../internal.h"
-
-static const struct {
- int id;
- const sqfs_u8 *value;
- size_t len;
-} magic[] = {
- { FSTREAM_COMPRESSOR_GZIP, (const sqfs_u8 *)"\x1F\x8B\x08", 3 },
- { FSTREAM_COMPRESSOR_XZ, (const sqfs_u8 *)("\xFD" "7zXZ"), 6 },
- { FSTREAM_COMPRESSOR_ZSTD, (const sqfs_u8 *)"\x28\xB5\x2F\xFD", 4 },
- { FSTREAM_COMPRESSOR_BZIP2, (const sqfs_u8 *)"BZh", 3 },
-};
-
-int istream_detect_compressor(istream_t *strm,
- int (*probe)(const sqfs_u8 *data, size_t size))
-{
- size_t i;
- int ret;
-
- ret = istream_precache(strm);
- if (ret != 0)
- return ret;
-
- if (probe != NULL) {
- ret = probe(strm->buffer + strm->buffer_offset,
- strm->buffer_used - strm->buffer_offset);
- if (ret < 0)
- return ret;
-
- /* XXX: this means the data is uncompressed. We do this check
- first since it might be perfectly OK for the uncompressed
- data to contain a magic number from the table. */
- if (ret > 0)
- return 0;
- }
-
- for (i = 0; i < sizeof(magic) / sizeof(magic[0]); ++i) {
- if ((strm->buffer_used - strm->buffer_offset) < magic[i].len)
- continue;
-
- ret = memcmp(strm->buffer + strm->buffer_offset,
- magic[i].value, magic[i].len);
-
- if (ret == 0)
- return magic[i].id;
- }
-
- return 0;
-}
diff --git a/lib/fstream/uncompress/bzip2.c b/lib/fstream/uncompress/bzip2.c
deleted file mode 100644
index 3b44383..0000000
--- a/lib/fstream/uncompress/bzip2.c
+++ /dev/null
@@ -1,118 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-/*
- * bzip2.c
- *
- * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
- */
-#include "../internal.h"
-
-#include <bzlib.h>
-
-typedef struct {
- istream_comp_t base;
-
- bool initialized;
- bz_stream strm;
-} istream_bzip2_t;
-
-static int precache(istream_t *base)
-{
- istream_bzip2_t *bzip2 = (istream_bzip2_t *)base;
- istream_t *wrapped = ((istream_comp_t *)base)->wrapped;
- size_t avail;
- int ret;
-
- for (;;) {
- if (!bzip2->initialized) {
- if (BZ2_bzDecompressInit(&bzip2->strm, 0, 0) != BZ_OK) {
- fprintf(stderr, "%s: error initializing "
- "bzip2 decompressor.\n",
- wrapped->get_filename(wrapped));
- return -1;
- }
-
- bzip2->initialized = true;
- }
-
- ret = istream_precache(wrapped);
- if (ret != 0)
- return ret;
-
- avail = wrapped->buffer_used;
- if ((sizeof(size_t) > sizeof(unsigned int)) &&
- (avail > (size_t)UINT_MAX)) {
- avail = UINT_MAX;
- }
-
- bzip2->strm.next_in = (char *)wrapped->buffer;
- bzip2->strm.avail_in = (unsigned int)avail;
-
- if (base->buffer_used > BUFSZ)
- base->buffer_used = BUFSZ;
-
- avail = BUFSZ - base->buffer_used;
-
- if ((sizeof(size_t) > sizeof(unsigned int)) &&
- (avail > (size_t)UINT_MAX)) {
- avail = UINT_MAX;
- }
-
- bzip2->strm.next_out = (char *)base->buffer + base->buffer_used;
- bzip2->strm.avail_out = (unsigned int)avail;
-
- if (bzip2->strm.avail_out < 1)
- break;
-
- ret = BZ2_bzDecompress(&bzip2->strm);
-
- if (ret < 0) {
- fprintf(stderr, "%s: internal error in bzip2 "
- "decompressor.\n",
- wrapped->get_filename(wrapped));
- return -1;
- }
-
- base->buffer_used = BUFSZ - bzip2->strm.avail_out;
- wrapped->buffer_offset = wrapped->buffer_used -
- bzip2->strm.avail_in;
-
- if (ret == BZ_STREAM_END) {
- if (istream_precache(wrapped))
- return -1;
-
- BZ2_bzDecompressEnd(&bzip2->strm);
- bzip2->initialized = false;
-
- if (wrapped->buffer_used == 0) {
- base->eof = true;
- break;
- }
- }
- }
-
- return 0;
-}
-
-static void cleanup(istream_comp_t *base)
-{
- istream_bzip2_t *bzip2 = (istream_bzip2_t *)base;
-
- if (bzip2->initialized)
- BZ2_bzDecompressEnd(&bzip2->strm);
-}
-
-istream_comp_t *istream_bzip2_create(const char *filename)
-{
- istream_bzip2_t *bzip2 = calloc(1, sizeof(*bzip2));
- istream_comp_t *base = (istream_comp_t *)bzip2;
-
- if (bzip2 == NULL) {
- fprintf(stderr, "%s: creating bzip2 compressor: %s.\n",
- filename, strerror(errno));
- return NULL;
- }
-
- ((istream_t *)base)->precache = precache;
- base->cleanup = cleanup;
- return base;
-}
diff --git a/lib/fstream/uncompress/gzip.c b/lib/fstream/uncompress/gzip.c
deleted file mode 100644
index 1d6274c..0000000
--- a/lib/fstream/uncompress/gzip.c
+++ /dev/null
@@ -1,106 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-/*
- * gzip.c
- *
- * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
- */
-#include "../internal.h"
-
-#include <zlib.h>
-
-typedef struct {
- istream_comp_t base;
-
- z_stream strm;
-} istream_gzip_t;
-
-static int precache(istream_t *base)
-{
- istream_t *wrapped = ((istream_comp_t *)base)->wrapped;
- istream_gzip_t *gzip = (istream_gzip_t *)base;
- size_t avail_in, avail_out;
- int ret;
-
- for (;;) {
- ret = istream_precache(wrapped);
- if (ret != 0)
- return ret;
-
- avail_in = wrapped->buffer_used;
- avail_out = BUFSZ - base->buffer_used;
-
- if (sizeof(size_t) > sizeof(uInt)) {
- gzip->strm.avail_in = ~((uInt)0U);
- gzip->strm.avail_out = ~((uInt)0U);
-
- if ((size_t)gzip->strm.avail_in > avail_in)
- gzip->strm.avail_in = (uInt)avail_in;
-
- if ((size_t)gzip->strm.avail_out > avail_out)
- gzip->strm.avail_out = (uInt)avail_out;
- } else {
- gzip->strm.avail_in = (uInt)avail_in;
- gzip->strm.avail_out = (uInt)avail_out;
- }
-
- gzip->strm.next_in = wrapped->buffer;
- gzip->strm.next_out = base->buffer + base->buffer_used;
-
- ret = inflate(&gzip->strm, Z_NO_FLUSH);
-
- wrapped->buffer_offset = wrapped->buffer_used -
- gzip->strm.avail_in;
-
- base->buffer_used = BUFSZ - gzip->strm.avail_out;
-
- if (ret == Z_BUF_ERROR)
- break;
-
- if (ret == Z_STREAM_END) {
- base->eof = true;
- break;
- }
-
- if (ret != Z_OK) {
- fprintf(stderr,
- "%s: internal error in gzip decoder.\n",
- wrapped->get_filename(wrapped));
- return -1;
- }
- }
-
- return 0;
-}
-
-static void cleanup(istream_comp_t *base)
-{
- istream_gzip_t *gzip = (istream_gzip_t *)base;
-
- inflateEnd(&gzip->strm);
-}
-
-istream_comp_t *istream_gzip_create(const char *filename)
-{
- istream_gzip_t *gzip = calloc(1, sizeof(*gzip));
- istream_comp_t *base = (istream_comp_t *)gzip;
- int ret;
-
- if (gzip == NULL) {
- fprintf(stderr, "%s: creating gzip decoder: %s.\n",
- filename, strerror(errno));
- return NULL;
- }
-
- ret = inflateInit2(&gzip->strm, 16 + 15);
- if (ret != Z_OK) {
- fprintf(stderr,
- "%s: internal error creating gzip reader.\n",
- filename);
- free(gzip);
- return NULL;
- }
-
- ((istream_t *)base)->precache = precache;
- base->cleanup = cleanup;
- return base;
-}
diff --git a/lib/fstream/uncompress/istream_compressor.c b/lib/fstream/uncompress/istream_compressor.c
deleted file mode 100644
index 75edd1b..0000000
--- a/lib/fstream/uncompress/istream_compressor.c
+++ /dev/null
@@ -1,69 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-/*
- * istream_compressor.c
- *
- * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
- */
-#include "../internal.h"
-
-static const char *comp_get_filename(istream_t *strm)
-{
- istream_comp_t *comp = (istream_comp_t *)strm;
-
- return comp->wrapped->get_filename(comp->wrapped);
-}
-
-static void comp_destroy(sqfs_object_t *obj)
-{
- istream_comp_t *comp = (istream_comp_t *)obj;
-
- comp->cleanup(comp);
- sqfs_destroy(comp->wrapped);
- free(comp);
-}
-
-istream_t *istream_compressor_create(istream_t *strm, int comp_id)
-{
- istream_comp_t *comp = NULL;
- sqfs_object_t *obj;
- istream_t *base;
-
- switch (comp_id) {
- case FSTREAM_COMPRESSOR_GZIP:
-#ifdef WITH_GZIP
- comp = istream_gzip_create(strm->get_filename(strm));
-#endif
- break;
- case FSTREAM_COMPRESSOR_XZ:
-#ifdef WITH_XZ
- comp = istream_xz_create(strm->get_filename(strm));
-#endif
- break;
- case FSTREAM_COMPRESSOR_ZSTD:
-#if defined(WITH_ZSTD) && defined(HAVE_ZSTD_STREAM)
- comp = istream_zstd_create(strm->get_filename(strm));
-#endif
- break;
- case FSTREAM_COMPRESSOR_BZIP2:
-#ifdef WITH_BZIP2
- comp = istream_bzip2_create(strm->get_filename(strm));
-#endif
- break;
- default:
- break;
- }
-
- if (comp == NULL)
- return NULL;
-
- comp->wrapped = strm;
-
- base = (istream_t *)comp;
- base->get_filename = comp_get_filename;
- base->buffer = comp->uncompressed;
- base->eof = false;
-
- obj = (sqfs_object_t *)comp;
- obj->destroy = comp_destroy;
- return base;
-}
diff --git a/lib/fstream/uncompress/xz.c b/lib/fstream/uncompress/xz.c
deleted file mode 100644
index 0fd9ce6..0000000
--- a/lib/fstream/uncompress/xz.c
+++ /dev/null
@@ -1,96 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-/*
- * xz.c
- *
- * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
- */
-#include "../internal.h"
-
-#include <lzma.h>
-
-typedef struct {
- istream_comp_t base;
-
- lzma_stream strm;
-} istream_xz_t;
-
-static int precache(istream_t *base)
-{
- istream_xz_t *xz = (istream_xz_t *)base;
- istream_t *wrapped = ((istream_comp_t *)base)->wrapped;
- lzma_action action;
- lzma_ret ret_xz;
- int ret;
-
- for (;;) {
- ret = istream_precache(wrapped);
- if (ret != 0)
- return ret;
-
- action = wrapped->eof ? LZMA_FINISH : LZMA_RUN;
-
- xz->strm.avail_in = wrapped->buffer_used;
- xz->strm.next_in = wrapped->buffer;
-
- xz->strm.avail_out = BUFSZ - base->buffer_used;
- xz->strm.next_out = base->buffer + base->buffer_used;
-
- ret_xz = lzma_code(&xz->strm, action);
-
- base->buffer_used = BUFSZ - xz->strm.avail_out;
- wrapped->buffer_offset = wrapped->buffer_used -
- xz->strm.avail_in;
-
- if (ret_xz == LZMA_BUF_ERROR)
- break;
-
- if (ret_xz == LZMA_STREAM_END) {
- base->eof = true;
- break;
- }
-
- if (ret_xz != LZMA_OK) {
- fprintf(stderr,
- "%s: internal error in xz decoder.\n",
- wrapped->get_filename(wrapped));
- return -1;
- }
- }
-
- return 0;
-}
-
-static void cleanup(istream_comp_t *base)
-{
- istream_xz_t *xz = (istream_xz_t *)base;
-
- lzma_end(&xz->strm);
-}
-
-istream_comp_t *istream_xz_create(const char *filename)
-{
- istream_xz_t *xz = calloc(1, sizeof(*xz));
- istream_comp_t *base = (istream_comp_t *)xz;
- sqfs_u64 memlimit = 65 * 1024 * 1024;
- lzma_ret ret_xz;
-
- if (xz == NULL) {
- fprintf(stderr, "%s: creating xz decoder: %s.\n",
- filename, strerror(errno));
- return NULL;
- }
-
- ret_xz = lzma_stream_decoder(&xz->strm, memlimit, LZMA_CONCATENATED);
-
- if (ret_xz != LZMA_OK) {
- fprintf(stderr,
- "%s: error initializing xz decoder.\n",
- filename);
- free(xz);
- return NULL;
- }
-
- ((istream_t *)base)->precache = precache;
- base->cleanup = cleanup;
- return base;
-}
diff --git a/lib/fstream/uncompress/zstd.c b/lib/fstream/uncompress/zstd.c
deleted file mode 100644
index fd22cbf..0000000
--- a/lib/fstream/uncompress/zstd.c
+++ /dev/null
@@ -1,81 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-/*
- * zstd.c
- *
- * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
- */
-#include "../internal.h"
-
-#include <zstd.h>
-
-#ifdef HAVE_ZSTD_STREAM
-typedef struct {
- istream_comp_t base;
-
- ZSTD_DStream* strm;
-} istream_zstd_t;
-
-static int precache(istream_t *base)
-{
- istream_zstd_t *zstd = (istream_zstd_t *)base;
- istream_t *wrapped = ((istream_comp_t *)base)->wrapped;
- ZSTD_outBuffer out;
- ZSTD_inBuffer in;
- size_t ret;
-
- if (istream_precache(wrapped))
- return -1;
-
- memset(&in, 0, sizeof(in));
- memset(&out, 0, sizeof(out));
-
- in.src = wrapped->buffer;
- in.size = wrapped->buffer_used;
-
- out.dst = ((istream_comp_t *)base)->uncompressed + base->buffer_used;
- out.size = BUFSZ - base->buffer_used;
-
- ret = ZSTD_decompressStream(zstd->strm, &out, &in);
-
- if (ZSTD_isError(ret)) {
- fprintf(stderr, "%s: error in zstd decoder.\n",
- wrapped->get_filename(wrapped));
- return -1;
- }
-
- wrapped->buffer_offset = in.pos;
- base->buffer_used += out.pos;
- return 0;
-}
-
-static void cleanup(istream_comp_t *base)
-{
- istream_zstd_t *zstd = (istream_zstd_t *)base;
-
- ZSTD_freeDStream(zstd->strm);
-}
-
-istream_comp_t *istream_zstd_create(const char *filename)
-{
- istream_zstd_t *zstd = calloc(1, sizeof(*zstd));
- istream_comp_t *base = (istream_comp_t *)zstd;
-
- if (zstd == NULL) {
- fprintf(stderr, "%s: creating zstd decoder: %s.\n",
- filename, strerror(errno));
- return NULL;
- }
-
- zstd->strm = ZSTD_createDStream();
- if (zstd->strm == NULL) {
- fprintf(stderr, "%s: error creating zstd decoder.\n",
- filename);
- free(zstd);
- return NULL;
- }
-
- ((istream_t *)base)->precache = precache;
- base->cleanup = cleanup;
- return base;
-}
-#endif /* HAVE_ZSTD_STREAM */
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