NAME

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

SYNOPSIS

       #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);

DESCRIPTION

       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.

RETURN VALUE

       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.

EXAMPLE

       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);

SEE ALSO

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

       explain_setresuid(3)
               explain setresuid(2) errors

       exit(2) terminate the calling process

COPYRIGHT

       libexplain version 1.4
       Copyright (C) 2012 Peter Miller

                                                                      explain_setresuid_or_die(3)