From 4dacedd9ccdbdc6a6e62d9fb86e9b2ea903a3629 Mon Sep 17 00:00:00 2001 From: Mounir IDRASSI Date: Thu, 15 Sep 2016 10:04:05 +0200 Subject: Windows: Replace XZip/XUnzip library with zlib and libzip and include the sources of these library into VeraCrypt source tree. --- src/Common/libzip/zip_extra_field_api.c | 366 ++++++++++++++++++++++++++++++++ 1 file changed, 366 insertions(+) create mode 100644 src/Common/libzip/zip_extra_field_api.c (limited to 'src/Common/libzip/zip_extra_field_api.c') diff --git a/src/Common/libzip/zip_extra_field_api.c b/src/Common/libzip/zip_extra_field_api.c new file mode 100644 index 00000000..ed93944a --- /dev/null +++ b/src/Common/libzip/zip_extra_field_api.c @@ -0,0 +1,366 @@ +/* + zip_extra_field_api.c -- public extra fields API functions + Copyright (C) 2012-2014 Dieter Baron and Thomas Klausner + + This file is part of libzip, a library to manipulate ZIP archives. + The authors can be contacted 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 "zipint.h" + + +ZIP_EXTERN int +zip_file_extra_field_delete(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_idx, zip_flags_t flags) +{ + zip_dirent_t *de; + + if ((flags & ZIP_EF_BOTH) == 0) { + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; + } + + if (((flags & ZIP_EF_BOTH) == ZIP_EF_BOTH) && (ef_idx != ZIP_EXTRA_FIELD_ALL)) { + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; + } + + if (_zip_get_dirent(za, idx, 0, NULL) == NULL) + return -1; + + if (ZIP_IS_RDONLY(za)) { + zip_error_set(&za->error, ZIP_ER_RDONLY, 0); + return -1; + } + + if (_zip_file_extra_field_prepare_for_change(za, idx) < 0) + return -1; + + de = za->entry[idx].changes; + + de->extra_fields = _zip_ef_delete_by_id(de->extra_fields, ZIP_EXTRA_FIELD_ALL, ef_idx, flags); + return 0; +} + + +ZIP_EXTERN int +zip_file_extra_field_delete_by_id(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_id, zip_uint16_t ef_idx, zip_flags_t flags) +{ + zip_dirent_t *de; + + if ((flags & ZIP_EF_BOTH) == 0) { + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; + } + + if (((flags & ZIP_EF_BOTH) == ZIP_EF_BOTH) && (ef_idx != ZIP_EXTRA_FIELD_ALL)) { + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; + } + + if (_zip_get_dirent(za, idx, 0, NULL) == NULL) + return -1; + + if (ZIP_IS_RDONLY(za)) { + zip_error_set(&za->error, ZIP_ER_RDONLY, 0); + return -1; + } + + if (_zip_file_extra_field_prepare_for_change(za, idx) < 0) + return -1; + + de = za->entry[idx].changes; + + de->extra_fields = _zip_ef_delete_by_id(de->extra_fields, ef_id, ef_idx, flags); + return 0; +} + + +ZIP_EXTERN const zip_uint8_t * +zip_file_extra_field_get(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_idx, zip_uint16_t *idp, zip_uint16_t *lenp, zip_flags_t flags) +{ + static const zip_uint8_t empty[1] = { '\0' }; + + zip_dirent_t *de; + zip_extra_field_t *ef; + int i; + + if ((flags & ZIP_EF_BOTH) == 0) { + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return NULL; + } + + if ((de=_zip_get_dirent(za, idx, flags, &za->error)) == NULL) + return NULL; + + if (flags & ZIP_FL_LOCAL) + if (_zip_read_local_ef(za, idx) < 0) + return NULL; + + i = 0; + for (ef=de->extra_fields; ef; ef=ef->next) { + if (ef->flags & flags & ZIP_EF_BOTH) { + if (i < ef_idx) { + i++; + continue; + } + + if (idp) + *idp = ef->id; + if (lenp) + *lenp = ef->size; + if (ef->size > 0) + return ef->data; + else + return empty; + } + } + + zip_error_set(&za->error, ZIP_ER_NOENT, 0); + return NULL; + +} + + +ZIP_EXTERN const zip_uint8_t * +zip_file_extra_field_get_by_id(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_id, zip_uint16_t ef_idx, zip_uint16_t *lenp, zip_flags_t flags) +{ + zip_dirent_t *de; + + if ((flags & ZIP_EF_BOTH) == 0) { + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return NULL; + } + + if ((de=_zip_get_dirent(za, idx, flags, &za->error)) == NULL) + return NULL; + + if (flags & ZIP_FL_LOCAL) + if (_zip_read_local_ef(za, idx) < 0) + return NULL; + + return _zip_ef_get_by_id(de->extra_fields, lenp, ef_id, ef_idx, flags, &za->error); +} + + +ZIP_EXTERN zip_int16_t +zip_file_extra_fields_count(zip_t *za, zip_uint64_t idx, zip_flags_t flags) +{ + zip_dirent_t *de; + zip_extra_field_t *ef; + zip_uint16_t n; + + if ((flags & ZIP_EF_BOTH) == 0) { + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; + } + + if ((de=_zip_get_dirent(za, idx, flags, &za->error)) == NULL) + return -1; + + if (flags & ZIP_FL_LOCAL) + if (_zip_read_local_ef(za, idx) < 0) + return -1; + + n = 0; + for (ef=de->extra_fields; ef; ef=ef->next) + if (ef->flags & flags & ZIP_EF_BOTH) + n++; + + return (zip_int16_t)n; +} + + +ZIP_EXTERN zip_int16_t +zip_file_extra_fields_count_by_id(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_id, zip_flags_t flags) +{ + zip_dirent_t *de; + zip_extra_field_t *ef; + zip_uint16_t n; + + if ((flags & ZIP_EF_BOTH) == 0) { + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; + } + + if ((de=_zip_get_dirent(za, idx, flags, &za->error)) == NULL) + return -1; + + if (flags & ZIP_FL_LOCAL) + if (_zip_read_local_ef(za, idx) < 0) + return -1; + + n = 0; + for (ef=de->extra_fields; ef; ef=ef->next) + if (ef->id == ef_id && (ef->flags & flags & ZIP_EF_BOTH)) + n++; + + return (zip_int16_t)n; +} + + +ZIP_EXTERN int +zip_file_extra_field_set(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_id, zip_uint16_t ef_idx, const zip_uint8_t *data, zip_uint16_t len, zip_flags_t flags) +{ + zip_dirent_t *de; + zip_uint16_t ls, cs; + zip_extra_field_t *ef, *ef_prev, *ef_new; + int i, found, new_len; + + if ((flags & ZIP_EF_BOTH) == 0) { + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; + } + + if (_zip_get_dirent(za, idx, 0, NULL) == NULL) + return -1; + + if (ZIP_IS_RDONLY(za)) { + zip_error_set(&za->error, ZIP_ER_RDONLY, 0); + return -1; + } + + if (ZIP_EF_IS_INTERNAL(ef_id)) { + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; + } + + if (_zip_file_extra_field_prepare_for_change(za, idx) < 0) + return -1; + + de = za->entry[idx].changes; + + ef = de->extra_fields; + ef_prev = NULL; + i = 0; + found = 0; + + for (; ef; ef=ef->next) { + if (ef->id == ef_id && (ef->flags & flags & ZIP_EF_BOTH)) { + if (i == ef_idx) { + found = 1; + break; + } + i++; + } + ef_prev = ef; + } + + if (i < ef_idx && ef_idx != ZIP_EXTRA_FIELD_NEW) { + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; + } + + if (flags & ZIP_EF_LOCAL) + ls = _zip_ef_size(de->extra_fields, ZIP_EF_LOCAL); + else + ls = 0; + if (flags & ZIP_EF_CENTRAL) + cs = _zip_ef_size(de->extra_fields, ZIP_EF_CENTRAL); + else + cs = 0; + + new_len = ls > cs ? ls : cs; + if (found) + new_len -= ef->size + 4; + new_len += len + 4; + + if (new_len > ZIP_UINT16_MAX) { + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; + } + + if ((ef_new=_zip_ef_new(ef_id, len, data, flags)) == NULL) { + zip_error_set(&za->error, ZIP_ER_MEMORY, 0); + return -1; + } + + if (found) { + if ((ef->flags & ZIP_EF_BOTH) == (flags & ZIP_EF_BOTH)) { + ef_new->next = ef->next; + ef->next = NULL; + _zip_ef_free(ef); + if (ef_prev) + ef_prev->next = ef_new; + else + de->extra_fields = ef_new; + } + else { + ef->flags &= ~(flags & ZIP_EF_BOTH); + ef_new->next = ef->next; + ef->next = ef_new; + } + } + else if (ef_prev) { + ef_new->next = ef_prev->next; + ef_prev->next = ef_new; + } + else + de->extra_fields = ef_new; + + return 0; +} + + + +int +_zip_file_extra_field_prepare_for_change(zip_t *za, zip_uint64_t idx) +{ + zip_entry_t *e; + + if (idx >= za->nentry) { + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; + } + + e = za->entry+idx; + + if (e->changes && (e->changes->changed & ZIP_DIRENT_EXTRA_FIELD)) + return 0; + + if (e->orig) { + if (_zip_read_local_ef(za, idx) < 0) + return -1; + } + + if (e->changes == NULL) { + if ((e->changes=_zip_dirent_clone(e->orig)) == NULL) { + zip_error_set(&za->error, ZIP_ER_MEMORY, 0); + return -1; + } + } + + if (e->orig && e->orig->extra_fields) { + if ((e->changes->extra_fields=_zip_ef_clone(e->orig->extra_fields, &za->error)) == NULL) + return -1; + } + e->changes->changed |= ZIP_DIRENT_EXTRA_FIELD; + + return 0; +} + -- cgit v1.2.3