mirror of
https://github.com/RGBCube/serenity
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68 lines
2.6 KiB
C++
68 lines
2.6 KiB
C++
/*
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* Copyright (c) 2021, the SerenityOS developers.
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* All rights reserved.
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*
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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 are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <AK/Random.h>
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#include <LibCore/ArgsParser.h>
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#include <fcntl.h>
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#include <inttypes.h>
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#include <sys/stat.h>
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#include <unistd.h>
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int main(int argc, char** argv)
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{
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const char* target = nullptr;
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int max_file_size = 1024 * 1024;
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int count = 1024;
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Core::ArgsParser args_parser;
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args_parser.add_option(max_file_size, "Maximum file size to generate", "max-size", 's', "size");
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args_parser.add_option(count, "Number of truncations to run", "number", 'n', "number");
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args_parser.add_positional_argument(target, "Target file path", "target");
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args_parser.parse(argc, argv);
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int fd = creat(target, 0666);
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if (fd < 0) {
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perror("Couldn't create target file");
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return EXIT_FAILURE;
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}
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close(fd);
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for (int i = 0; i < count; i++) {
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auto new_file_size = AK::get_random<uint64_t>() % (max_file_size + 1);
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printf("(%d/%d)\tTruncating to %" PRIu64 " bytes...\n", i + 1, count, new_file_size);
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if (truncate(target, new_file_size) < 0) {
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perror("Couldn't truncate target file");
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return EXIT_FAILURE;
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}
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}
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if (unlink(target) < 0) {
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perror("Couldn't remove target file");
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return EXIT_FAILURE;
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}
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return EXIT_SUCCESS;
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}
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