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#include <sysexits.h> /* EX_USAGE, EX_OSERR, EX_OSFILE */
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#include <errno.h> /* errno, error_t, EACCES,
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ENAMETOOLONG, ENOENT, ENOTDIR,
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ENOMEM, EEXIST, ECHILD, EPERM,
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EEXIST, ECHILD, EPERM, ENOMEM,
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EAGAIN, EINTR, ENOBUFS, EADDRINUSE,
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ECONNREFUSED, ECONNRESET,
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ETOOMANYREFS, EMSGSIZE, EBADF,
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IN_EXCL_UNLINK, IN_ONLYDIR,
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struct inotify_event */
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#include <fnmatch.h> /* fnmatch(), FNM_FILE_NAME */
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#include <stdio.h> /* asprintf(), FILE, stderr, fopen(),
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fclose(), getline(), sscanf(),
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feof(), ferror(), rename(),
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fdopen(), fprintf(), fscanf() */
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#include <stdio.h> /* asprintf(), FILE, fopen(),
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getline(), sscanf(), feof(),
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ferror(), fclose(), stderr,
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rename(), fdopen(), fprintf(),
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#include <glib.h> /* GKeyFile, g_key_file_free(), g_key_file_new(),
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GError, g_key_file_load_from_file(),
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G_KEY_FILE_NONE, TRUE, G_FILE_ERROR_NOENT,
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__attribute__((nonnull, warn_unused_result))
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bool add_to_queue(task_queue *const queue, const task_context task){
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if((queue->length + 1) > (SIZE_MAX / sizeof(task_context))){
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error(0, ENOMEM, "Failed to allocate %" PRIuMAX
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" tasks for queue->tasks", (uintmax_t)(queue->length + 1));
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const size_t needed_size = sizeof(task_context)*(queue->length + 1);
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if(needed_size > (queue->allocated)){
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task_context *const new_tasks = realloc(queue->tasks,
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g_assert_true(queue->tasks[0].func == dummy_func);
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static void test_add_to_queue_overflow(__attribute__((unused))
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test_fixture *fixture,
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__attribute__((unused))
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gconstpointer user_data){
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__attribute__((cleanup(cleanup_queue)))
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task_queue *queue = create_queue();
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g_assert_nonnull(queue);
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g_assert_true(queue->length == 0);
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queue->length = SIZE_MAX / sizeof(task_context); /* fake max size */
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FILE *real_stderr = stderr;
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FILE *devnull = fopen("/dev/null", "we");
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g_assert_nonnull(devnull);
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const bool ret = add_to_queue(queue,
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(task_context){ .func=dummy_func });
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g_assert_true(errno == ENOMEM);
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g_assert_false(ret);
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stderr = real_stderr;
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g_assert_cmpint(fclose(devnull), ==, 0);
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queue->length = 0; /* Restore real size */
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static void dummy_func(__attribute__((unused))
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const task_context task,
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__attribute__((unused))
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char *const filename = strdup("/nonexistent/socket");
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__attribute__((cleanup(string_set_clear)))
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string_set cancelled_filenames = {};
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/* Find a message size which triggers EMSGSIZE */
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__attribute__((cleanup(cleanup_string)))
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char *message_buffer = NULL;
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size_t message_size = PIPE_BUF + 1;
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for(ssize_t ssret = 0; ssret >= 0; message_size += 1024){
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if(message_size >= 1024*1024*1024){ /* 1 GiB */
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g_test_skip("Skipping EMSGSIZE test: Will not try 1GiB");
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message_buffer = realloc(message_buffer, message_size);
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if(message_buffer == NULL){
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g_test_skip("Skipping EMSGSIZE test");
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g_test_message("Failed to malloc() %" PRIuMAX " bytes",
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(uintmax_t)message_size);
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/* Fill buffer with 'x' */
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memset(message_buffer, 'x', message_size);
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/* Create a new socketpair for each message size to avoid having
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to empty the pipe by reading the message to a separate buffer
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g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM
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| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,
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ssret = send(socketfds[1], message_buffer, message_size,
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error_t saved_errno = errno;
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g_assert_cmpint(close(socketfds[0]), ==, 0);
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g_assert_cmpint(close(socketfds[1]), ==, 0);
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if(saved_errno != EMSGSIZE) {
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g_test_skip("Skipping EMSGSIZE test");
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g_test_message("Error on send(): %s", strerror(saved_errno));
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} else if(ssret != (ssize_t)message_size){
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g_test_skip("Skipping EMSGSIZE test");
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g_test_message("Partial send(): %" PRIuMAX " of %" PRIdMAX
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" bytes", (uintmax_t)ssret,
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(intmax_t)message_size);
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g_test_message("EMSGSIZE triggered by %" PRIdMAX " bytes",
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(intmax_t)message_size);
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.data=message_buffer,
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.length=message_size - 2, /* Compensate for added '+' and NUL */
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.allocated=message_size,
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const size_t oversized = 1024*1024; /* Limit seems to be 212960 */
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__attribute__((cleanup(cleanup_buffer)))
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.data=malloc(oversized),
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.allocated=oversized,
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g_assert_nonnull(password.data);
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if(mlock(password.data, password.allocated) != 0){
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g_assert_true(errno == EPERM or errno == ENOMEM);
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/* Construct test password buffer */
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/* Start with + since that is what the real procotol uses */
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password.data[0] = '+';
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/* Set a special character at string end just to mark the end */
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password.data[oversized-3] = 'y';
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/* Set NUL at buffer end, as suggested by the protocol */
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password.data[oversized-2] = '\0';
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/* Fill rest of password with 'x' */
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memset(password.data+1, 'x', oversized-3);
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__attribute__((cleanup(cleanup_queue)))
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task_queue *queue = create_queue();
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g_assert_nonnull(queue);
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g_assert_cmpint(socketpair(PF_LOCAL, SOCK_DGRAM
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| SOCK_NONBLOCK | SOCK_CLOEXEC, 0,
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socketfds), ==, 0);
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test_add("/parse_arguments/mixed", test_parse_arguments_mixed);
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test_add("/queue/create", test_create_queue);
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test_add("/queue/add", test_add_to_queue);
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test_add("/queue/add/overflow", test_add_to_queue_overflow);
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test_add("/queue/has_question/empty",
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test_queue_has_question_empty);
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test_add("/queue/has_question/false",
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g_option_context_set_help_enabled(context, FALSE);
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g_option_context_set_ignore_unknown_options(context, TRUE);
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gboolean should_run_tests = FALSE;
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gboolean run_tests = FALSE;
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GOptionEntry entries[] = {
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{ "test", 0, 0, G_OPTION_ARG_NONE,
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&should_run_tests, "Run tests", NULL },
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&run_tests, "Run tests", NULL },
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g_option_context_add_main_entries(context, entries, NULL);