status.i4.v = user_email_c(user_names.i1a.r, emails.i1a.r,
				   errors.i2a.r, num_users.i4.v)

	This routine returns user email addresses.

	user_names	user name or array of names
			(USER_NAME_LEN characters)
	emails		returned email addresses
			(EMAIL_LEN + 2 characters per entry)
			(Note: A value of NULL may be passed for this
			 argument if no email addresses are desired.)
	errors		returned ACNET status value or array of values
	num_users	number of users requested

	This function returns status values as follows:

	OK			success
	CLIB_INVARG		invalid user name passed
	CLIB_NO_SUCH		user doesn't exist
	CLIB_CORRUPT		invalid stored information encountered
	positive value		number of results in error

	This function requires the following include files:

	cnsparam_h, clib_h, acnet_errors_h

	Related functions:

	mail_send, mail_send_message, mail_send_image, email_send_message,
	email_send_image, my_current_user_email

	C/C++ usage:

	static const char	user_names[USER_NAME_LEN+1] = "HENDRICKS";
	char	emails[NUM_USERS][EMAIL_LEN+2];
	short	errors[NUM_USERS];
	int	status;
	int	num_users = NUM_USERS;

	status = user_email_c(user_names,(char *) emails,errors,num_users);