74 lines
2.7 KiB
C
74 lines
2.7 KiB
C
/*
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zip_read_fuzzer_common.h -- common function for fuzzers to read all files in an archive
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Copyright (C) 2023 Dieter Baron and Thomas Klausner
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This file is part of libzip, a library to manipulate ZIP archives.
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The authors can be contacted at <info@libzip.org>
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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3. The names of the authors may not be used to endorse or promote
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products derived from this software without specific prior
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written permission.
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THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS
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OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "zip.h"
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void fuzzer_read(zip_t *za, zip_error_t *error, const char *password) {
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zip_int64_t i, n, ret;
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char buf[32768];
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if (za == NULL) {
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fprintf(stderr, "Error opening archive: %s\n", zip_error_strerror(error));
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zip_error_fini(error);
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return;
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}
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zip_set_default_password(za, password);
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zip_error_fini(error);
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n = zip_get_num_entries(za, 0);
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for (i = 0; i < n; i++) {
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zip_file_t *f = zip_fopen_index(za, i, 0);
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if (f == NULL) {
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fprintf(stderr, "Error opening file %d: %s\n", (int)i, zip_strerror(za));
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continue;
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}
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while ((ret = zip_fread(f, buf, sizeof(buf))) > 0) {
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;
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}
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if (ret < 0) {
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fprintf(stderr, "Error reading file %d: %s\n", (int)i, zip_strerror(za));
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}
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if (zip_fclose(f) < 0) {
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fprintf(stderr, "Error closing file %d: %s\n", (int)i, zip_strerror(za));
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continue;
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}
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}
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if (zip_close(za) < 0) {
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fprintf(stderr, "Error closing archive: %s\n", zip_strerror(za));
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zip_discard(za);
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}
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}
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