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authorMounir IDRASSI <mounir.idrassi@idrix.fr>2016-09-15 10:04:05 +0200
committerMounir IDRASSI <mounir.idrassi@idrix.fr>2016-10-17 18:40:06 +0200
commit4dacedd9ccdbdc6a6e62d9fb86e9b2ea903a3629 (patch)
tree567350f56dd4ee4dd291d13199610d38dac51879 /src/Common/libzip/zip_io_util.c
parent66891638d51351fae5cd82a88c1a64661a025de0 (diff)
downloadVeraCrypt-4dacedd9ccdbdc6a6e62d9fb86e9b2ea903a3629.tar.gz
VeraCrypt-4dacedd9ccdbdc6a6e62d9fb86e9b2ea903a3629.zip
Windows: Replace XZip/XUnzip library with zlib and libzip and include the sources of these library into VeraCrypt source tree.
Diffstat (limited to 'src/Common/libzip/zip_io_util.c')
-rw-r--r--src/Common/libzip/zip_io_util.c138
1 files changed, 138 insertions, 0 deletions
diff --git a/src/Common/libzip/zip_io_util.c b/src/Common/libzip/zip_io_util.c
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+++ b/src/Common/libzip/zip_io_util.c
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+/*
+ zip_io_util.c -- I/O helper functions
+ Copyright (C) 1999-2015 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 <stdlib.h>
+#include <string.h>
+
+#include "zipint.h"
+
+int
+_zip_read(zip_source_t *src, zip_uint8_t *b, zip_uint64_t length, zip_error_t *error)
+{
+ zip_int64_t n;
+
+ if (length > ZIP_INT64_MAX) {
+ zip_error_set(error, ZIP_ER_INTERNAL, 0);
+ return -1;
+ }
+
+ if ((n = zip_source_read(src, b, length)) < 0) {
+ _zip_error_set_from_source(error, src);
+ return -1;
+ }
+
+ if (n < (zip_int64_t)length) {
+ zip_error_set(error, ZIP_ER_EOF, 0);
+ return -1;
+ }
+
+ return 0;
+}
+
+
+zip_uint8_t *
+_zip_read_data(zip_buffer_t *buffer, zip_source_t *src, size_t length, bool nulp, zip_error_t *error)
+{
+ zip_uint8_t *r;
+
+ if (length == 0 && !nulp) {
+ return NULL;
+ }
+
+ r = (zip_uint8_t *)malloc(length + (nulp ? 1 : 0));
+ if (!r) {
+ zip_error_set(error, ZIP_ER_MEMORY, 0);
+ return NULL;
+ }
+
+ if (buffer) {
+ zip_uint8_t *data = _zip_buffer_get(buffer, length);
+
+ if (data == NULL) {
+ zip_error_set(error, ZIP_ER_MEMORY, 0);
+ free(r);
+ return NULL;
+ }
+ memcpy(r, data, length);
+ }
+ else {
+ if (_zip_read(src, r, length, error) < 0) {
+ free(r);
+ return NULL;
+ }
+ }
+
+ if (nulp) {
+ zip_uint8_t *o;
+ /* replace any in-string NUL characters with spaces */
+ r[length] = 0;
+ for (o=r; o<r+length; o++)
+ if (*o == '\0')
+ *o = ' ';
+ }
+
+ return r;
+}
+
+
+zip_string_t *
+_zip_read_string(zip_buffer_t *buffer, zip_source_t *src, zip_uint16_t len, bool nulp, zip_error_t *error)
+{
+ zip_uint8_t *raw;
+ zip_string_t *s;
+
+ if ((raw=_zip_read_data(buffer, src, len, nulp, error)) == NULL)
+ return NULL;
+
+ s = _zip_string_new(raw, len, ZIP_FL_ENC_GUESS, error);
+ free(raw);
+ return s;
+}
+
+
+int
+_zip_write(zip_t *za, const void *data, zip_uint64_t length)
+{
+ zip_int64_t n;
+
+ if ((n = zip_source_write(za->src, data, length)) < 0) {
+ _zip_error_set_from_source(&za->error, za->src);
+ return -1;
+ }
+ if ((zip_uint64_t)n != length) {
+ zip_error_set(&za->error, ZIP_ER_WRITE, EINTR);
+ return -1;
+ }
+
+ return 0;
+}