From 359d71e90050a8b83f7bc7d2ecd4ff29c477cc22 Mon Sep 17 00:00:00 2001 From: David Oberhollenzer Date: Sun, 26 Jun 2022 22:51:27 +0200 Subject: Cleanup: rename libfstream to libio, split headers Signed-off-by: David Oberhollenzer --- lib/fstream/uncompress/bzip2.c | 118 ----------------------------------------- 1 file changed, 118 deletions(-) delete mode 100644 lib/fstream/uncompress/bzip2.c (limited to 'lib/fstream/uncompress/bzip2.c') 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 - */ -#include "../internal.h" - -#include - -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; -} -- cgit v1.2.3