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

  • Committer: teddy at recompile
  • Date: 2020-02-07 20:53:34 UTC
  • Revision ID: teddy@recompile.se-20200207205334-dp41p8c8vw0ytik5
Allow users to more easily alter mandos.service

The sysvinit script uses /etc/default/mandos as an environment file,
and supports adding additional server options to a DAEMON_ARGS
environment variable.  This should be supported by the systemd
service, too.

* mandos.service ([Service]/EnvironmentFile): New; set to
  "/etc/default/mandos ".
  ([Service]/ExecStart): Append "$DAEMON_ARGS".

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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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__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",