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explain_setgid_or_die(3)   Library Functions Manual   explain_setgid_or_die(3)

NAME
       explain_setgid_or_die - set group identity and report errors

SYNOPSIS
       #include	<libexplain/setgid.h>
       void explain_setgid_or_die(gid_t	gid);
       int explain_setgid_on_error(gid_t gid);

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

       The explain_setgid_on_error function is used to call the	setgid(2) sys-
       tem call. On failure an explanation will	be printed to stderr, obtained
       from the	explain_setgid(3) function, but	still returns to the caller.

       gid     The gid,	exactly	as to be passed	to the setgid(2) system	call.

RETURN VALUE
       The explain_setgid_or_die function only returns on  success,  see  set-
       gid(2)  for more	information. On	failure, prints	an explanation and ex-
       its, it does not	return.

       The explain_setgid_on_error function always returns the value return by
       the wrapped setgid(2) system call.

EXAMPLE
       The  explain_setgid_or_die function is intended to be used in a fashion
       similar to the following	example:
	      explain_setgid_or_die(gid);

SEE ALSO
       setgid(2)
	       set group identity

       explain_setgid(3)
	       explain setgid(2) errors

       exit(2) terminate the calling process

COPYRIGHT
       libexplain version 1.3
       Copyright (C) 2012 Peter	Miller

						      explain_setgid_or_die(3)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | EXAMPLE | SEE ALSO | COPYRIGHT

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