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getluid(3)
NAME
  getluid, setluid - Get or set the login UID (Enhanced Security)

LIBRARY
  Security Library - libsecurity.a and libsecurity.so

SYNOPSIS
  #include <prot.h>
  uid_t getluid();

  #include <prot.h>
  int setluid(uid);

PARAMETERS
  uid  An integer representing the user ID being requested.

DESCRIPTION
  The getluid() function gets the system's the login UID associated with the
  process.  If it has not been set yet, return an error.

  The setluid() function sets the system's login UID for this process and all
  its descendants.  Once set, it cannot be reset.

RETURN VALUES
  The getluid() function returns the actual UID on success and a -1 for
  failure.  The setluid() function returns 0 for success and -1 for failure.

RELATED INFORMATION
  Security