NAME

       explain_setresgid_or_die - set r/e/s group ID and report errors

SYNOPSIS

       #include <libexplain/setresgid.h>
       void explain_setresgid_or_die(gid_t rgid, gid_t egid, gid_t sgid);
       int explain_setresgid_on_error(gid_t rgid, gid_t egid, gid_t sgid);

DESCRIPTION

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

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

       rgid    The rgid, exactly as to be passed to the setresgid(2) system call.

       egid    The egid, exactly as to be passed to the setresgid(2) system call.

       sgid    The sgid, exactly as to be passed to the setresgid(2) system call.

RETURN VALUE

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

       The explain_setresgid_on_error function always returns the value  return  by  the  wrapped
       setresgid(2) system call.

EXAMPLE

       The  explain_setresgid_or_die  function is intended to be used in a fashion similar to the
       following example:
              explain_setresgid_or_die(rgid, egid, sgid);

SEE ALSO

       setresgid(2)
               set real, effective and saved group ID

       explain_setresgid(3)
               explain setresgid(2) errors

       exit(2) terminate the calling process

COPYRIGHT

       libexplain version 1.4
       Copyright (C) 2012 Peter Miller

                                                                      explain_setresgid_or_die(3)