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-rw-r--r--lib/comp/zlib.c107
1 files changed, 0 insertions, 107 deletions
diff --git a/lib/comp/zlib.c b/lib/comp/zlib.c
deleted file mode 100644
index f151132..0000000
--- a/lib/comp/zlib.c
+++ /dev/null
@@ -1,107 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-#include <stdbool.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <zlib.h>
-
-#include "internal.h"
-
-typedef struct {
- compressor_t base;
-
- z_stream strm;
- bool compress;
-
- size_t block_size;
-} zlib_compressor_t;
-
-static void zlib_destroy(compressor_t *base)
-{
- zlib_compressor_t *zlib = (zlib_compressor_t *)base;
-
- if (zlib->compress) {
- deflateEnd(&zlib->strm);
- } else {
- inflateEnd(&zlib->strm);
- }
-
- free(zlib);
-}
-
-static ssize_t zlib_do_block(compressor_t *base, const uint8_t *in,
- size_t size, uint8_t *out, size_t outsize)
-{
- zlib_compressor_t *zlib = (zlib_compressor_t *)base;
- size_t written;
- int ret;
-
- if (zlib->compress) {
- ret = deflateReset(&zlib->strm);
- } else {
- ret = inflateReset(&zlib->strm);
- }
-
- if (ret != Z_OK) {
- fputs("resetting zlib stream failed\n", stderr);
- return -1;
- }
-
- zlib->strm.next_in = (void *)in;
- zlib->strm.avail_in = size;
- zlib->strm.next_out = out;
- zlib->strm.avail_out = outsize;
-
- if (zlib->compress) {
- ret = deflate(&zlib->strm, Z_FINISH);
- } else {
- ret = inflate(&zlib->strm, Z_FINISH);
- }
-
- if (ret == Z_STREAM_END) {
- written = zlib->strm.total_out;
-
- if (zlib->compress && written >= size)
- return 0;
-
- return (ssize_t)written;
- }
-
- if (ret != Z_OK) {
- fputs("zlib block processing failed\n", stderr);
- return -1;
- }
-
- return 0;
-}
-
-compressor_t *create_zlib_compressor(bool compress, size_t block_size)
-{
- zlib_compressor_t *zlib = calloc(1, sizeof(*zlib));
- compressor_t *base = (compressor_t *)zlib;
- int ret;
-
- if (zlib == NULL) {
- perror("creating zlib stream");
- return NULL;
- }
-
- zlib->compress = compress;
- zlib->block_size = block_size;
- base->do_block = zlib_do_block;
- base->destroy = zlib_destroy;
-
- if (compress) {
- ret = deflateInit(&zlib->strm, Z_BEST_COMPRESSION);
- } else {
- ret = inflateInit(&zlib->strm);
- }
-
- if (ret != Z_OK) {
- fputs("internal error creating zlib stream\n", stderr);
- free(zlib);
- return NULL;
- }
-
- return base;
-}