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-rw-r--r--src/journal/compress.c208
1 files changed, 0 insertions, 208 deletions
diff --git a/src/journal/compress.c b/src/journal/compress.c
deleted file mode 100644
index 75e70c5ffa..0000000000
--- a/src/journal/compress.c
+++ /dev/null
@@ -1,208 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2011 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <assert.h>
-#include <stdlib.h>
-#include <string.h>
-#include <lzma.h>
-
-#include "compress.h"
-
-bool compress_blob(const void *src, uint64_t src_size, void *dst, uint64_t *dst_size) {
- lzma_stream s = LZMA_STREAM_INIT;
- lzma_ret ret;
- bool b = false;
-
- assert(src);
- assert(src_size > 0);
- assert(dst);
- assert(dst_size);
-
- /* Returns false if we couldn't compress the data or the
- * compressed result is longer than the original */
-
- ret = lzma_easy_encoder(&s, LZMA_PRESET_DEFAULT, LZMA_CHECK_NONE);
- if (ret != LZMA_OK)
- return false;
-
- s.next_in = src;
- s.avail_in = src_size;
- s.next_out = dst;
- s.avail_out = src_size;
-
- /* Does it fit? */
- if (lzma_code(&s, LZMA_FINISH) != LZMA_STREAM_END)
- goto fail;
-
- /* Is it actually shorter? */
- if (s.avail_out == 0)
- goto fail;
-
- *dst_size = src_size - s.avail_out;
- b = true;
-
-fail:
- lzma_end(&s);
-
- return b;
-}
-
-bool uncompress_blob(const void *src, uint64_t src_size,
- void **dst, uint64_t *dst_alloc_size, uint64_t* dst_size) {
-
- lzma_stream s = LZMA_STREAM_INIT;
- lzma_ret ret;
- bool b = false;
-
- assert(src);
- assert(src_size > 0);
- assert(dst);
- assert(dst_alloc_size);
- assert(dst_size);
- assert(*dst_alloc_size == 0 || *dst);
-
- ret = lzma_stream_decoder(&s, UINT64_MAX, 0);
- if (ret != LZMA_OK)
- return false;
-
- if (*dst_alloc_size <= src_size) {
- void *p;
-
- p = realloc(*dst, src_size*2);
- if (!p)
- return false;
-
- *dst = p;
- *dst_alloc_size = src_size*2;
- }
-
- s.next_in = src;
- s.avail_in = src_size;
-
- s.next_out = *dst;
- s.avail_out = *dst_alloc_size;
-
- for (;;) {
- void *p;
-
- ret = lzma_code(&s, LZMA_FINISH);
-
- if (ret == LZMA_STREAM_END)
- break;
-
- if (ret != LZMA_OK)
- goto fail;
-
- p = realloc(*dst, *dst_alloc_size*2);
- if (!p)
- goto fail;
-
- s.next_out = (uint8_t*) p + ((uint8_t*) s.next_out - (uint8_t*) *dst);
- s.avail_out += *dst_alloc_size;
-
- *dst = p;
- *dst_alloc_size *= 2;
- }
-
- *dst_size = *dst_alloc_size - s.avail_out;
- b = true;
-
-fail:
- lzma_end(&s);
-
- return b;
-}
-
-bool uncompress_startswith(const void *src, uint64_t src_size,
- void **buffer, uint64_t *buffer_size,
- const void *prefix, uint64_t prefix_len,
- uint8_t extra) {
-
- lzma_stream s = LZMA_STREAM_INIT;
- lzma_ret ret;
- bool b = false;
-
- /* Checks whether the uncompressed blob starts with the
- * mentioned prefix. The byte extra needs to follow the
- * prefix */
-
- assert(src);
- assert(src_size > 0);
- assert(buffer);
- assert(buffer_size);
- assert(prefix);
- assert(*buffer_size == 0 || *buffer);
-
- ret = lzma_stream_decoder(&s, UINT64_MAX, 0);
- if (ret != LZMA_OK)
- return false;
-
- if (*buffer_size <= prefix_len) {
- void *p;
-
- p = realloc(*buffer, prefix_len*2);
- if (!p)
- return false;
-
- *buffer = p;
- *buffer_size = prefix_len*2;
- }
-
- s.next_in = src;
- s.avail_in = src_size;
-
- s.next_out = *buffer;
- s.avail_out = *buffer_size;
-
- for (;;) {
- void *p;
-
- ret = lzma_code(&s, LZMA_FINISH);
-
- if (ret != LZMA_STREAM_END && ret != LZMA_OK)
- goto fail;
-
- if ((*buffer_size - s.avail_out > prefix_len) &&
- memcmp(*buffer, prefix, prefix_len) == 0 &&
- ((const uint8_t*) *buffer)[prefix_len] == extra)
- break;
-
- if (ret == LZMA_STREAM_END)
- goto fail;
-
- p = realloc(*buffer, *buffer_size*2);
- if (!p)
- goto fail;
-
- s.next_out = (uint8_t*) p + ((uint8_t*) s.next_out - (uint8_t*) *buffer);
- s.avail_out += *buffer_size;
-
- *buffer = p;
- *buffer_size *= 2;
- }
-
- b = true;
-
-fail:
- lzma_end(&s);
-
- return b;
-}