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Viewing changes to dracut-module/password-agent.c

  • Committer: Teddy Hogeborn
  • Date: 2019-08-05 21:14:05 UTC
  • Revision ID: teddy@recompile.se-20190805211405-9m6hecekaihpttz9
Override lintian warnings about upgrading from old versions

There are some really things which are imperative that we fix in case
someone were to upgrade from a really old version.  We want to keep
these fixes in the postinst maintainer scripts, even though lintian
complains about such old upgrades not being supported by Debian in
general.  We prefer the code being there, for the sake of the users.

* debian/mandos-client.lintian-overrides
  (maintainer-script-supports-ancient-package-version): New.
  debian/mandos.lintian-overrides
  (maintainer-script-supports-ancient-package-version): - '' -

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Lines of Context:
dracut-module/password-agent.c
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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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                                   ARGP_ERR_UNKNOWN, ARGP_KEY_ARGS,
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                                   struct argp, argp_parse(),
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                                   ARGP_NO_EXIT */
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#include <stdint.h>             /* SIZE_MAX */
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#include <unistd.h>             /* uid_t, gid_t, close(), pipe2(),
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                                   fork(), _exit(), dup2(),
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                                   STDOUT_FILENO, setresgid(),
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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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                                   fscanf() */
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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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  mono_microsecs next_run;
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} __attribute__((designated_init)) task_queue;
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/* "task_func" - A function type for task functions
 
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/* "func_type" - A function type for task functions
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   I.e. functions for the code which runs when a task is run, all have
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   this type */
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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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    /* overflow */
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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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    errno = ENOMEM;
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    return false;
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  }
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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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}
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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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  stderr = 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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}
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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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  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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8126
 
  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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    { NULL }
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  };
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  g_option_context_add_main_entries(context, entries, NULL);
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  }
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  g_option_context_free(context);
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  return should_run_tests != FALSE;
 
8111
  return run_tests != FALSE;
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}