File: trypeercred.c

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ucspi-unix 1.0-6
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#define _GNU_SOURCE 1
#include <sys/types.h>
#include <sys/socket.h>

int main(void)
{
  struct ucred peer;
  socklen_t optlen = sizeof(peer);
  getsockopt(0, SOL_SOCKET, SO_PEERCRED, &peer, &optlen);
  return 0;
}