mirror of
https://github.com/LadybirdBrowser/ladybird.git
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76da9a4a7d
This enables a nice warning in case a function becomes dead code. Also, in the case of test-crypto.cpp, I took the liberty to add the prefix 'g_' to the global event loop.
338 lines
11 KiB
C++
338 lines
11 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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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/Assertions.h>
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#include <AK/LogStream.h>
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#include <AK/Types.h>
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#include <LibCore/File.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/mman.h>
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#include <sys/stat.h>
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#include <sys/uio.h>
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#include <unistd.h>
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#define EXPECT_ERROR_2(err, syscall, arg1, arg2) \
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do { \
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rc = syscall(arg1, arg2); \
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if (rc >= 0 || errno != err) { \
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fprintf(stderr, __FILE__ ":%d: Expected " #err ": " #syscall "(%p, %p), got rc=%d, errno=%d\n", __LINE__, (const void*)(arg1), (const void*)arg2, rc, errno); \
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} \
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} while (0)
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#define EXPECT_ERROR_3(err, syscall, arg1, arg2, arg3) \
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do { \
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rc = syscall(arg1, arg2, arg3); \
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if (rc >= 0 || errno != err) { \
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fprintf(stderr, __FILE__ ":%d: Expected " #err ": " #syscall "(%p, %p, %p), got rc=%d, errno=%d\n", __LINE__, (const void*)(arg1), (const void*)(arg2), (const void*)(arg3), rc, errno); \
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} \
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} while (0)
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static void test_read_from_directory()
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{
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char buffer[BUFSIZ];
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int fd = open("/", O_DIRECTORY | O_RDONLY);
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ASSERT(fd >= 0);
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int rc;
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EXPECT_ERROR_3(EISDIR, read, fd, buffer, sizeof(buffer));
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rc = close(fd);
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ASSERT(rc == 0);
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}
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static void test_write_to_directory()
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{
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char str[] = "oh frick";
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int fd = open("/", O_DIRECTORY | O_RDONLY);
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if (fd < 0)
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perror("open");
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ASSERT(fd >= 0);
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int rc;
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EXPECT_ERROR_3(EBADF, write, fd, str, sizeof(str));
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rc = close(fd);
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ASSERT(rc == 0);
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}
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static void test_read_from_writeonly()
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{
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char buffer[BUFSIZ];
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int fd = open("/tmp/xxxx123", O_CREAT | O_WRONLY);
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ASSERT(fd >= 0);
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int rc;
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EXPECT_ERROR_3(EBADF, read, fd, buffer, sizeof(buffer));
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rc = close(fd);
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ASSERT(rc == 0);
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}
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static void test_write_to_readonly()
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{
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char str[] = "hello";
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int fd = open("/tmp/abcd123", O_CREAT | O_RDONLY);
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ASSERT(fd >= 0);
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int rc;
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EXPECT_ERROR_3(EBADF, write, fd, str, sizeof(str));
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rc = close(fd);
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ASSERT(rc == 0);
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}
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static void test_read_past_eof()
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{
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char buffer[BUFSIZ];
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int fd = open("/home/anon/myfile.txt", O_RDONLY);
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if (fd < 0)
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perror("open");
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ASSERT(fd >= 0);
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int rc;
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rc = lseek(fd, 9999, SEEK_SET);
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if (rc < 0)
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perror("lseek");
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rc = read(fd, buffer, sizeof(buffer));
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if (rc < 0)
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perror("read");
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if (rc > 0)
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fprintf(stderr, "read %d bytes past EOF\n", rc);
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rc = close(fd);
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ASSERT(rc == 0);
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}
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static void test_ftruncate_readonly()
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{
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int fd = open("/tmp/trunctest", O_RDONLY | O_CREAT, 0666);
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ASSERT(fd >= 0);
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int rc;
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EXPECT_ERROR_2(EBADF, ftruncate, fd, 0);
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close(fd);
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}
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static void test_ftruncate_negative()
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{
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int fd = open("/tmp/trunctest", O_RDWR | O_CREAT, 0666);
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ASSERT(fd >= 0);
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int rc;
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EXPECT_ERROR_2(EINVAL, ftruncate, fd, -1);
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close(fd);
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}
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static void test_mmap_directory()
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{
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int fd = open("/tmp", O_RDONLY | O_DIRECTORY);
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ASSERT(fd >= 0);
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auto* ptr = mmap(nullptr, 4096, PROT_READ, MAP_FILE | MAP_SHARED, fd, 0);
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if (ptr != MAP_FAILED) {
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fprintf(stderr, "Boo! mmap() of a directory succeeded!\n");
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return;
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}
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if (errno != ENODEV) {
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fprintf(stderr, "Boo! mmap() of a directory gave errno=%d instead of ENODEV!\n", errno);
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return;
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}
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close(fd);
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}
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static void test_tmpfs_read_past_end()
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{
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int fd = open("/tmp/x", O_RDWR | O_CREAT | O_TRUNC, 0600);
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ASSERT(fd >= 0);
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int rc = ftruncate(fd, 1);
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ASSERT(rc == 0);
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rc = lseek(fd, 4096, SEEK_SET);
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ASSERT(rc == 4096);
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char buffer[16];
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int nread = read(fd, buffer, sizeof(buffer));
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if (nread != 0) {
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fprintf(stderr, "Expected 0-length read past end of file in /tmp\n");
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}
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close(fd);
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}
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static void test_procfs_read_past_end()
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{
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int fd = open("/proc/uptime", O_RDONLY);
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ASSERT(fd >= 0);
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int rc = lseek(fd, 4096, SEEK_SET);
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ASSERT(rc == 4096);
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char buffer[16];
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int nread = read(fd, buffer, sizeof(buffer));
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if (nread != 0) {
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fprintf(stderr, "Expected 0-length read past end of file in /proc\n");
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}
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close(fd);
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}
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static void test_open_create_device()
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{
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int fd = open("/tmp/fakedevice", (O_RDWR | O_CREAT), (S_IFCHR | 0600));
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ASSERT(fd >= 0);
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struct stat st;
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if (fstat(fd, &st) < 0) {
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perror("stat");
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ASSERT_NOT_REACHED();
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}
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if (st.st_mode != 0100600) {
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fprintf(stderr, "Expected mode 0100600 after attempt to create a device node with open(O_CREAT), mode=%o\n", st.st_mode);
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}
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unlink("/tmp/fakedevice");
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close(fd);
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}
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static void test_unlink_symlink()
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{
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int rc = symlink("/proc/2/foo", "/tmp/linky");
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if (rc < 0) {
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perror("symlink");
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ASSERT_NOT_REACHED();
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}
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auto target = Core::File::read_link("/tmp/linky");
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ASSERT(target == "/proc/2/foo");
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rc = unlink("/tmp/linky");
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if (rc < 0) {
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perror("unlink");
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fprintf(stderr, "Expected unlink() of a symlink into an unreadable directory to succeed!\n");
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}
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}
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static void test_eoverflow()
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{
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int fd = open("/tmp/x", O_RDWR);
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ASSERT(fd >= 0);
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int rc = lseek(fd, INT32_MAX, SEEK_SET);
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ASSERT(rc == INT32_MAX);
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char buffer[16];
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rc = read(fd, buffer, sizeof(buffer));
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if (rc >= 0 || errno != EOVERFLOW) {
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fprintf(stderr, "Expected EOVERFLOW when trying to read past INT32_MAX\n");
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}
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rc = write(fd, buffer, sizeof(buffer));
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if (rc >= 0 || errno != EOVERFLOW) {
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fprintf(stderr, "Expected EOVERFLOW when trying to write past INT32_MAX\n");
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}
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close(fd);
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}
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static void test_rmdir_while_inside_dir()
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{
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int rc = mkdir("/home/anon/testdir", 0700);
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ASSERT(rc == 0);
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rc = chdir("/home/anon/testdir");
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ASSERT(rc == 0);
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rc = rmdir("/home/anon/testdir");
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ASSERT(rc == 0);
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int fd = open("x", O_CREAT | O_RDWR, 0600);
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if (fd >= 0 || errno != ENOENT) {
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fprintf(stderr, "Expected ENOENT when trying to create a file inside a deleted directory. Got %d with errno=%d\n", fd, errno);
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}
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rc = chdir("/home/anon");
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ASSERT(rc == 0);
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}
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static void test_writev()
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{
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int pipefds[2];
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pipe(pipefds);
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iovec iov[2];
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iov[0].iov_base = const_cast<void*>((const void*)"Hello");
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iov[0].iov_len = 5;
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iov[1].iov_base = const_cast<void*>((const void*)"Friends");
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iov[1].iov_len = 7;
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int nwritten = writev(pipefds[1], iov, 2);
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if (nwritten < 0) {
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perror("writev");
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ASSERT_NOT_REACHED();
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}
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if (nwritten != 12) {
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fprintf(stderr, "Didn't write 12 bytes to pipe with writev\n");
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ASSERT_NOT_REACHED();
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}
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char buffer[32];
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int nread = read(pipefds[0], buffer, sizeof(buffer));
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if (nread != 12 || memcmp(buffer, "HelloFriends", 12)) {
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fprintf(stderr, "Didn't read the expected data from pipe after writev\n");
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ASSERT_NOT_REACHED();
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}
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close(pipefds[0]);
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close(pipefds[1]);
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}
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static void test_rmdir_root()
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{
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int rc = rmdir("/");
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if (rc != -1 || errno != EBUSY) {
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warn() << "rmdir(/) didn't fail with EBUSY";
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ASSERT_NOT_REACHED();
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}
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}
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int main()
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{
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int rc;
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EXPECT_ERROR_2(ENOTDIR, open, "/dev/zero", (O_DIRECTORY | O_RDONLY));
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EXPECT_ERROR_2(EINVAL, open, "/dev/zero", (O_DIRECTORY | O_CREAT | O_RDWR));
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EXPECT_ERROR_2(EEXIST, open, "/dev/zero", (O_CREAT | O_EXCL | O_RDWR));
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EXPECT_ERROR_2(EINVAL, open, "/tmp/abcdef", (O_DIRECTORY | O_CREAT | O_RDWR));
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EXPECT_ERROR_2(EACCES, open, "/proc/all", (O_RDWR));
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EXPECT_ERROR_2(ENOENT, open, "/boof/baaf/nonexistent", (O_CREAT | O_RDWR));
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EXPECT_ERROR_2(EISDIR, open, "/tmp", (O_DIRECTORY | O_RDWR));
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test_read_from_directory();
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test_write_to_directory();
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test_read_from_writeonly();
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test_write_to_readonly();
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test_read_past_eof();
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test_ftruncate_readonly();
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test_ftruncate_negative();
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test_mmap_directory();
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test_tmpfs_read_past_end();
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test_procfs_read_past_end();
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test_open_create_device();
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test_unlink_symlink();
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test_eoverflow();
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test_rmdir_while_inside_dir();
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test_writev();
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test_rmdir_root();
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EXPECT_ERROR_2(EPERM, link, "/", "/home/anon/lolroot");
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return 0;
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}
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