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authorDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2022-06-26 22:51:27 +0200
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2022-07-08 19:17:35 +0200
commit359d71e90050a8b83f7bc7d2ecd4ff29c477cc22 (patch)
treedf2b7a585b78e6776446d4ca9be62a22db27f0a7 /lib/fstream/uncompress/xz.c
parent2087cc237cd0fe1ed29ebf891648bacb46f4833b (diff)
Cleanup: rename libfstream to libio, split headers
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'lib/fstream/uncompress/xz.c')
-rw-r--r--lib/fstream/uncompress/xz.c96
1 files changed, 0 insertions, 96 deletions
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;
-}