/* Minixfs translation configurer */

#include <sys/types.h>
#include <mintbind.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

#include "minixfs/minixfs.h"

#ifdef __STDC__
# define	P(s) s
#else
# define P(s) ()
#endif


/* mfsconf.c */
void main P((int argc , char **argv ));
void usage P((void ));
long tr_get P((long arg , int chr ));
char *tr_text P((int arg ));

#undef P

long trans;

void main(argc,argv)
int argc;
char **argv;
{
	extern char *optarg;
	static char err=0;
	char c;
        extern int opterr;
	long tmp;

	if(argc==1) usage();

	if (Dcntl (MFS_VERIFY, argv[1], &trans) || trans != MFS_MAGIC)
	{
		fprintf(stderr,"Pathname: %s is not a minix partition.\n"
				,argv[1]);
		exit(1);
	}

	Dcntl (MFS_GTRANS, argv[1], &trans);

	if(argc==2)
	{
		printf("Minix Filesystem Path %s\nConfiguration:\n",argv[1]);
		printf("Directory Translation %s.\n",tr_text(DIR_TOS));
		printf("Search Translation    %s.\n",tr_text(SRCH_TOS));
		printf("Auto Exec Setting     %s.\n",tr_text(AEXEC_TOS));
		printf("Lower Case Creation   %s.\n",tr_text(LWR_TOS));
		exit(0);
	}

	/* Parse command-line options */
	opterr=0;
	while((c=getopt(argc-1,&argv[1],"l:L:d:D:s:S:x:X:"))!=EOF)
	{
        	switch(c){

        		case 'l':
			case 'L':
			trans &= ~(LWR_TOS|LWR_MNT); 
			tmp=tr_get(LWR_TOS,optarg[0]);
			if(tmp==-1) err=1;
			else trans |=tmp;
			break;

			case 'd':
			case 'D':
			trans &= ~(DIR_TOS | DIR_MNT);
			tmp=tr_get(DIR_TOS,optarg[0]);
			if(tmp==-1) err=1;
			else trans |=tmp;
			break;
	
			case 'x':
			case 'X':
			trans &= ~(AEXEC_TOS | AEXEC_MNT);
			tmp=tr_get(AEXEC_TOS,optarg[0]);
			if(tmp==-1)err=1;
			else trans |=tmp;			
			break;
			
			case 's':
			case 'S':
			trans &= ~(SRCH_TOS | SRCH_MNT);
			tmp= tr_get(SRCH_TOS,optarg[0]);
			if(tmp==-1) err=1;
			else trans |=tmp;
			break;

			case '?':
			err=1;
			break;
		}
	}
	if(err) usage();

	Dcntl (MFS_STRANS, argv[1], &trans);
	exit(0);
}

void usage()
{
	fprintf(stderr,"Usage : mfsconfig path -[ldsx] [m|t|b|n]\n");
	fprintf(stderr,"'path' is any minix filesystem path\n");
	fprintf(stderr,"-l : Lower case creation\n");
	fprintf(stderr,"-d : Directory entry translation\n");
	fprintf(stderr,"-s : Search translation\n");
	fprintf(stderr,"-x : Exec translation\n");
	fprintf(stderr,"m : MiNT domain only\n");
	fprintf(stderr,"t : TOS domain only\n");
	fprintf(stderr,"b : Both domains (always)\n");
	fprintf(stderr,"n : Neither domain (never)\n");
	exit(1);
}

long tr_get(arg,chr)
long arg ;
char chr;
{
	switch(chr)
	{
		case 'b':
		case 'B':
		return (arg | (arg<<1)) ;

		case 'n':
		case 'N':
		return 0;

		case 't':
		case 'T':
		return arg;

		case 'm':
		case 'M':
		return arg<<1;
		
		default :
		return -1;
	}
}

char *tr_msg[] = {"Never","TOS domain","MiNT domain","Always"} ;

char *tr_text(arg)
int arg;
{
	int index;
	index=0;
	if(trans & arg) index |= 1;
	if(trans & (arg<<1) ) index |= 2;
	return tr_msg[index];
}