/*	$OpenBSD: tcfserrors.c,v 1.5 2000/06/19 22:42:28 aaron Exp $	*/

/*
 *	Transparent Cryptographic File System (TCFS) for NetBSD 
 *	Author and mantainer: 	Luigi Catuogno [luicat@tcfs.unisa.it]
 *	
 *	references:		http://tcfs.dia.unisa.it
 *				tcfs-bsd@tcfs.unisa.it
 */

/*
 *	Base utility set v0.1
 */

#include <stdio.h>
#include <unistd.h>
#include "tcfserrors.h"

static char *tcfs_errors_strings[]=
{
	"Ok",
	NULL,
	"unknow option.",
	"authentication error.",
	"out of memory.",
	"you do not have a TCFS key.",
	"Who are you?!",
	"ioctl error while setting permanent flag.",
	"ioctl error while sending.",
	"ioctl error while removing key.",
	"ioctl error while getting key counter."
};

void tcfs_error(int error_type, char *custom_message)
{
	if (error_type != ER_CUSTOM && error_type != OK)
		fprintf(stderr, "Error: ");
	
	switch (error_type) {
	case ER_AUTH:
	case ER_MEM:
	case ER_TCFS:
	case ER_PERM:
	case ER_ENABLE:
	case ER_DISABLE:
	case ER_COUNT:
	case ER_USER:
	case OK:
		fprintf(stderr, "%s\n", tcfs_errors_strings[error_type]);
		exit(error_type);
	case ER_CUSTOM:
		fprintf(stderr, "%s\n", custom_message);
		exit(1);
	case ER_UNKOPT:
		if (custom_message)
			fprintf(stderr, "%s: %s\n", tcfs_errors_strings[error_type], custom_message);
		else
			fprintf(stderr, "%s\n", tcfs_errors_strings[error_type]);
			
		exit(error_type);
		break; /* Useless code */
	default:
		fprintf(stderr, "internal error.\n");
		exit(1);
	}
}

void show_usage(char *fmt, char *arg)
{
	printf(fmt, arg);
}