VeraCrypt
aboutsummaryrefslogtreecommitdiff
path: root/src/Common/libzip/zip_filerange_crc.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/Common/libzip/zip_filerange_crc.c')
-rw-r--r--src/Common/libzip/zip_filerange_crc.c84
1 files changed, 0 insertions, 84 deletions
diff --git a/src/Common/libzip/zip_filerange_crc.c b/src/Common/libzip/zip_filerange_crc.c
deleted file mode 100644
index b8873634..00000000
--- a/src/Common/libzip/zip_filerange_crc.c
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- zip_filerange_crc.c -- compute CRC32 for a range of a file
- Copyright (C) 2008-2019 Dieter Baron and Thomas Klausner
-
- This file is part of libzip, a library to manipulate ZIP archives.
- The authors can be contacted at <libzip@nih.at>
-
- 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.
- 3. The names of the authors may not be used to endorse or promote
- products derived from this software without specific prior
- written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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.
-*/
-
-
-#include <stdio.h>
-
-#include "zipint.h"
-
-
-int
-_zip_filerange_crc(zip_source_t *src, zip_uint64_t start, zip_uint64_t len, uLong *crcp, zip_error_t *error) {
- DEFINE_BYTE_ARRAY(buf, BUFSIZE);
-
- zip_int64_t n;
-
- *crcp = crc32(0L, Z_NULL, 0);
-
- if (start > ZIP_INT64_MAX) {
- zip_error_set(error, ZIP_ER_SEEK, EFBIG);
- return -1;
- }
-
- if (zip_source_seek(src, (zip_int64_t)start, SEEK_SET) != 0) {
- _zip_error_set_from_source(error, src);
- return -1;
- }
-
- if (!byte_array_init(buf, BUFSIZE)) {
- zip_error_set(error, ZIP_ER_MEMORY, 0);
- return -1;
- }
-
- while (len > 0) {
- n = (zip_int64_t)(len > BUFSIZE ? BUFSIZE : len);
- if ((n = zip_source_read(src, buf, (zip_uint64_t)n)) < 0) {
- _zip_error_set_from_source(error, src);
- byte_array_fini(buf);
- return -1;
- }
- if (n == 0) {
- zip_error_set(error, ZIP_ER_EOF, 0);
- byte_array_fini(buf);
- return -1;
- }
-
- *crcp = crc32(*crcp, buf, (uInt)n);
-
- len -= (zip_uint64_t)n;
- }
-
- byte_array_fini(buf);
-
- return 0;
-}