explain_setresuid_or_die - set r/e/s user ID and report errors

       libexplain version 1.4
       Copyright (C) 2012 Peter Miller

                                                                                     explain_setresuid_or_die(3)

       The  explain_setresuid_or_die  function  is  used  to  call  the  setresuid(2) system call. On failure an
       explanation will be printed to stderr, obtained from the  explain_setresuid(3)  function,  and  then  the
       process terminates by calling exit(EXIT_FAILURE).

       The  explain_setresuid_on_error  function  is  used  to  call the setresuid(2) system call. On failure an
       explanation will be printed to stderr, obtained from the explain_setresuid(3) function, but still returns
       to the caller.

       ruid    The ruid, exactly as to be passed to the setresuid(2) system call.

       euid    The euid, exactly as to be passed to the setresuid(2) system call.

       suid    The suid, exactly as to be passed to the setresuid(2) system call.

       The explain_setresuid_or_die function is intended to be used  in  a  fashion  similar  to  the  following
       example:
              explain_setresuid_or_die(ruid, euid, suid);

       explain_setresuid_or_die - set r/e/s user ID and report errors

       The explain_setresuid_or_die function only returns on success, see setresuid(2) for more information.  On
       failure, prints an explanation and exits, it does not return.

       The  explain_setresuid_on_error  function  always  returns  the  value return by the wrapped setresuid(2)
       system call.

setresuid(2)
               set real, effective and saved user ID

       explain_setresuid(3)
               explain setresuid(2) errors

       exit(2) terminate the calling process

       #include <libexplain/setresuid.h>
       void explain_setresuid_or_die(uid_t ruid, uid_t euid, uid_t suid);
       int explain_setresuid_on_error(uid_t ruid, uid_t euid, uid_t suid);