test/interactive-helper/test_fileutl.cc

   1 #include <apt-pkg/fileutl.h>
   2 #include <apt-pkg/strutl.h>
   3 #include <apt-pkg/error.h>
   4
   5 #include <sys/types.h>
   6 #include <sys/stat.h>
   7 #include <unistd.h>
   8 #include <stdlib.h>
   9 #include <fcntl.h>
  10
  11 #include <iostream>
  12 #include <string>
  13
  14 static void callsystem(std::string const &call)
  15 {
  16    auto ret = system(call.c_str());
  17    if (WIFEXITED(ret) == false || WEXITSTATUS(ret) != 0)
  18       _error->Error("Calling %s failed!", call.c_str());
  19 }
  20
  21 int main(int, char ** argv)
  22 {
  23         auto const pid = getpid();
  24         std::string ls;
  25         strprintf(ls, "ls -l /proc/%d/fd", pid);
  26         callsystem(ls);
  27         FileFd t;
  28         t.Open(argv[1], FileFd::ReadOnly, FileFd::Extension);
  29         callsystem(ls);
  30         char buf[1024];
  31         unsigned long long act;
  32         while (t.Read(buf, sizeof(buf), &act))
  33                 if (act == 0)
  34                         break;
  35         callsystem(ls);
  36         t.Seek(5);
  37         callsystem(ls);
  38         t.Close();
  39         callsystem(ls);
  40         auto const ret = _error->PendingError();
  41         _error->DumpErrors();
  42         return ret;
  43 }