diff options
Diffstat (limited to 'pkgtools/pkg_install/files/lib/decompress.c')
| -rw-r--r-- | pkgtools/pkg_install/files/lib/decompress.c | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/pkgtools/pkg_install/files/lib/decompress.c b/pkgtools/pkg_install/files/lib/decompress.c deleted file mode 100644 index 31500f2580d..00000000000 --- a/pkgtools/pkg_install/files/lib/decompress.c +++ /dev/null @@ -1,186 +0,0 @@ -/* $NetBSD: decompress.c,v 1.3 2009/08/02 17:56:45 joerg Exp $ */ - -/*- - * Copyright (c) 2008 Joerg Sonnenberger <joerg@NetBSD.org>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if HAVE_CONFIG_H -#include "config.h" -#endif - -#include <nbcompat.h> - -#if HAVE_SYS_CDEFS_H -#include <sys/cdefs.h> -#endif - -__RCSID("$NetBSD: decompress.c,v 1.3 2009/08/02 17:56:45 joerg Exp $"); - -#ifdef BOOTSTRAP -#include "lib.h" - -int -decompress_buffer(const char *input, size_t input_len, char **output, - size_t *output_len) -{ - return 0; -} - -#else - -#include <bzlib.h> -#if HAVE_ERR_H -#include <err.h> -#endif -#include <limits.h> -#include <stdlib.h> -#include <zlib.h> - -#include "lib.h" - -static void -decompress_bzip2(const char *in, size_t in_len, char **out, size_t *out_len) -{ - bz_stream stream; - size_t output_produced; - - if (in_len < SSIZE_MAX / 10) - *out_len = in_len * 10; - else - *out_len = in_len; - *out = xmalloc(*out_len + 1); - - stream.next_in = __UNCONST(in); - stream.avail_in = in_len; - stream.next_out = *out; - stream.avail_out = *out_len; - output_produced = 0; - stream.bzalloc = NULL; - stream.bzfree = NULL; - stream.opaque = NULL; - - if (BZ2_bzDecompressInit(&stream, 0, 0) != BZ_OK) - errx(EXIT_FAILURE, "BZ2_bzDecompressInit failed"); - - for (;;) { - switch (BZ2_bzDecompress(&stream)) { - case BZ_STREAM_END: - if (BZ2_bzDecompressEnd(&stream) != Z_OK) - errx(EXIT_FAILURE, "inflateEnd failed"); - output_produced = *out_len - stream.avail_out; - *out = xrealloc(*out, output_produced + 1); - *out_len = output_produced; - (*out)[*out_len] = '\0'; - return; - case BZ_OK: - output_produced = *out_len - stream.avail_out; - if (*out_len <= SSIZE_MAX / 2) - *out_len *= 2; - else - errx(EXIT_FAILURE, "input too large"); - *out = xrealloc(*out, *out_len + 1); - stream.next_out = *out + output_produced; - stream.avail_out = *out_len - output_produced; - break; - default: - errx(EXIT_FAILURE, "inflate failed"); - } - } -} - -static void -decompress_zlib(const char *in, size_t in_len, char **out, size_t *out_len) -{ - z_stream stream; - size_t output_produced; - - if (in_len < SSIZE_MAX / 10) - *out_len = in_len * 10; - else - *out_len = in_len; - *out = xmalloc(*out_len + 1); - - stream.next_in = __UNCONST(in); - stream.avail_in = in_len; - stream.next_out = (unsigned char *)*out; - stream.avail_out = *out_len; - output_produced = 0; - stream.zalloc = Z_NULL; - stream.zfree = Z_NULL; - stream.opaque = NULL; - - if (inflateInit2(&stream, 47) != Z_OK) - errx(EXIT_FAILURE, "inflateInit failed"); - - for (;;) { - switch (inflate(&stream, Z_FINISH)) { - case Z_STREAM_END: - if (inflateEnd(&stream) != Z_OK) - errx(EXIT_FAILURE, "inflateEnd failed"); - output_produced = *out_len - stream.avail_out; - *out = xrealloc(*out, output_produced + 1); - *out_len = output_produced; - (*out)[*out_len] = '\0'; - return; - case Z_OK: - output_produced = *out_len - stream.avail_out; - if (*out_len < SSIZE_MAX / 2) - *out_len *= 2; - else if (*out_len == SSIZE_MAX - 1) - errx(EXIT_FAILURE, "input too large"); - else - *out_len = SSIZE_MAX - 1; - *out = xrealloc(*out, *out_len + 1); - stream.next_out = (unsigned char *)*out + output_produced; - stream.avail_out = *out_len - output_produced; - break; - default: - errx(EXIT_FAILURE, "inflate failed"); - } - } -} - -int -decompress_buffer(const char *input, size_t input_len, char **output, - size_t *output_len) -{ - if (input_len < 4) - return 0; - if (input[0] == 'B' && input[1] == 'Z' && input[2] == 'h' && - input[3] >= '1' && input[3] <= '9') { - /* Normal bzip2. */ - decompress_bzip2(input, input_len, output, output_len); - } else if (input[0] == 037 && (unsigned char)input[1] == 139 && - input[2] == 8 && (input[3] & 0xe0) == 0) { - /* gzip header with Deflate method */ - decompress_zlib(input, input_len, output, output_len); - } else /* plain text */ - return 0; - return 1; -} -#endif /* BOOTSTRAP */ |