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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/compress/gzip.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/compress/gzip.c')
-rw-r--r--lib/fstream/compress/gzip.c92
1 files changed, 0 insertions, 92 deletions
diff --git a/lib/fstream/compress/gzip.c b/lib/fstream/compress/gzip.c
deleted file mode 100644
index b73a258..0000000
--- a/lib/fstream/compress/gzip.c
+++ /dev/null
@@ -1,92 +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 {
- ostream_comp_t base;
-
- z_stream strm;
-} ostream_gzip_t;
-
-static int flush_inbuf(ostream_comp_t *base, bool finish)
-{
- ostream_gzip_t *gzip = (ostream_gzip_t *)base;
- size_t have;
- int ret;
-
- if (base->inbuf_used > sizeof(base->inbuf))
- base->inbuf_used = sizeof(base->inbuf);
-
- if (sizeof(size_t) > sizeof(uInt)) {
- gzip->strm.avail_in = ~((uInt)0);
-
- if ((size_t)gzip->strm.avail_in > base->inbuf_used)
- gzip->strm.avail_in = (uInt)base->inbuf_used;
- } else {
- gzip->strm.avail_in = (uInt)base->inbuf_used;
- }
-
- gzip->strm.next_in = base->inbuf;
-
- do {
- gzip->strm.avail_out = BUFSZ;
- gzip->strm.next_out = base->outbuf;
-
- ret = deflate(&gzip->strm, finish ? Z_FINISH : Z_NO_FLUSH);
-
- if (ret == Z_STREAM_ERROR) {
- fprintf(stderr,
- "%s: internal error in gzip compressor.\n",
- base->wrapped->get_filename(base->wrapped));
- return -1;
- }
-
- have = BUFSZ - gzip->strm.avail_out;
-
- if (base->wrapped->append(base->wrapped, base->outbuf, have))
- return -1;
- } while (gzip->strm.avail_out == 0);
-
- base->inbuf_used = 0;
- return 0;
-}
-
-static void cleanup(ostream_comp_t *base)
-{
- ostream_gzip_t *gzip = (ostream_gzip_t *)base;
-
- deflateEnd(&gzip->strm);
-}
-
-ostream_comp_t *ostream_gzip_create(const char *filename)
-{
- ostream_gzip_t *gzip = calloc(1, sizeof(*gzip));
- ostream_comp_t *base = (ostream_comp_t *)gzip;
- int ret;
-
- if (gzip == NULL) {
- fprintf(stderr, "%s: creating gzip wrapper: %s.\n",
- filename, strerror(errno));
- return NULL;
- }
-
- ret = deflateInit2(&gzip->strm, 9, Z_DEFLATED, 16 + 15, 8,
- Z_DEFAULT_STRATEGY);
- if (ret != Z_OK) {
- fprintf(stderr,
- "%s: internal error creating gzip compressor.\n",
- filename);
- free(gzip);
- return NULL;
- }
-
- base->flush_inbuf = flush_inbuf;
- base->cleanup = cleanup;
- return base;
-}