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

  • Committer: Teddy Hogeborn
  • Date: 2023-02-11 06:58:15 UTC
  • mto: This revision was merged to the branch mainline in revision 410.
  • Revision ID: teddy@recompile.se-20230211065815-jtffi61tbdrgr875
Suppress warnings

Suppress warnings about mlock()ing uninitialized memory and reading an
ievent struct.

* dracut-module/password-agent.c (send_password_to_socket): Suppress
  "-Wmaybe-uninitialized" when mlock()ing password send buffer.
  (test_read_inotify_event_IN_DELETE_badname): When reading from
    a struct ievent, suppress "-Wstringop-overread".

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Lines of Context:
dracut-module/password-agent.c
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    if(send_buffer == NULL){
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      error(0, errno, "Failed to allocate send_buffer");
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    } else {
 
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#if defined(__GNUC__) and __GNUC__ >= 5
 
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#pragma GCC diagnostic push
 
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  /* mlock() does not access the memory */
 
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#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
 
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#endif
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      if(mlock(send_buffer, send_buffer_length) != 0){
 
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#if defined(__GNUC__) and __GNUC__ >= 5
 
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#pragma GCC diagnostic pop
 
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#endif
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        /* Warn but do not treat as fatal error */
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        if(errno != EPERM and errno != ENOMEM){
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          error(0, errno, "Failed to lock memory for password"
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  memcpy(ievent->name, dummy_file_name, sizeof(dummy_file_name));
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  const size_t ievent_size = (sizeof(struct inotify_event)
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                              + sizeof(dummy_file_name));
 
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#if defined(__GNUC__) and __GNUC__ >= 11
 
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#pragma GCC diagnostic push
 
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  /* ievent is pointing into a struct which is of sufficient size */
 
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#pragma GCC diagnostic ignored "-Wstringop-overread"
 
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#endif
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  g_assert_cmpint(write(pipefds[1], (char *)ievent, ievent_size),
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                  ==, ievent_size);
 
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#if defined(__GNUC__) and __GNUC__ >= 11
 
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#pragma GCC diagnostic pop
 
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#endif
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  g_assert_cmpint(close(pipefds[1]), ==, 0);
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  bool quit_now = false;