/* *  ntcat.c * *  Copyright (C) 1995-1997 Martin von L鰓is *  Copyright (C) 1997 R間is Duchesne */#ifdef HAVE_CONFIG_H#include "config.h"#endif#include <stdio.h>#include <stdlib.h>#ifdef HAVE_GETOPT_H#include <getopt.h>#else#define getopt_long(a,v,o,ol,x)        getopt(a,v,o)#endif#ifdef HAVE_UNISTD_H#include <unistd.h>#endif#ifdef _WINDOWS#include <fcntl.h>#endif#ifdef HAVE_IO_H#include <io.h>#endif#include <string.h>#include "ntfstypes.h"#include "struct.h"#include "util.h"#include "inode.h"#include "nttools.h"char *short_opts="f:o:s:B:b:1Vh";#ifdef HAVE_GETOPT_Hstruct option options[]={	{"filesystem",1,0,'f'},	{"offset",1,0,'o'},	{"size",1,0,'s'},	{"bias",1,0,'B'},	{"buflen",1,0,'b'},	{"8859-1",0,0,'1'},	{"version",0,0,'V'},	{"help",0,0,'h'},	{0,0,0,0}};#endifchar usage_str[]="ntcat: dumps the contents of an NTFS file to stdout\n""ntcat [OPTIONS] [directory/]filename\n""  --filesystem, -f device   Use device\n""  --offset, -o offset	     Use offset\n""  --size, -s size           Only first size bytes\n""  --bias, -B bias           Use partition bias\n""  --buflen, -b buflen       Read with buffer size buflen\n""  --8859-1, -1              Use charset ISO-8859-1\n""                            (default is UTF-8)\n""  --version, -V             Display version\n""  --help, -h                Display this message\n";void usage(void){/*	fprintf(stderr,"ntcat [-f device] [-o offset] [-l size] [-1] [directory/]filename\n");*/        fprintf(stderr,usage_str);}/* print the file ino on stdout */void ntfs_cat_file(ntfs_inode *ino,int offset,int length,int bufsize){	int position;	char *buf;	ntfs_io io;	position=offset;	if(!bufsize) bufsize=8192;	buf=(char*)malloc(bufsize);	/* Very large file */	if(!buf)	{		bufsize=8192;		buf=(char*)malloc(bufsize);		if(!buf)		{			perror("ntcat");			exit(0);		}	}	io.fn_put=ntfs_put;	io.fn_get=0;	io.do_read=1;	io.param=buf;	io.size=bufsize;	/* read from the unnamed data attribute */	while(ntfs_read_attr(ino,ino->vol->at_data,			     NULL,position,&io)==0 && io.size)	{		if(write(1,buf,io.size)!=io.size){			perror("write");			exit(1);		}		position+=io.size;		length-=io.size;		if(length==0)			break;		io.param=buf;		io.size=bufsize;	}	free(buf);}int main(int argc,char *argv[]){	int c;	char *device=0;#ifdef _WINDOWS	devname[32];#endif	int offset=0;	int length=0;	char *name;	ntfs_volume *volume;	ntfs_inode ino;	int inum;	int bias=0;	int buflen=8192;	extern int opterr,optind;	extern char* optarg;	unsigned int charset=nct_utf8;	opterr=1;	while((c=getopt_long(argc,argv,short_opts,options,NULL))>0)		switch(c)		{		case 'f': device=optarg;break;		case 'o': offset=strtol(optarg,NULL,0);break;		case 's': length=strtol(optarg,NULL,0);break;		case 'B': bias=strtol(optarg,NULL,0);break;		case 'b': buflen=strtol(optarg,NULL,0);break;		case '1': charset=nct_iso8859_1;break;		case 'V': printf("ntcat " NTFS_VERSION "\n");exit(0);break;		case 'h': usage();exit(0);break;		}	name=argv[optind];#ifdef _WINDOWS	_setmode(fileno(stdout),_O_BINARY);	if(!device && name[1]=':'){		strcpy(devname,"\\\\.\\C:");		devname[4] = name[0];		name+=3;		device=devname;	}#endif	volume=ntfs_open_volume(device,bias,1,0);	if(!volume)return 1;	volume->nct=charset;	inum=5;	/* walk the directory tree */	do{		char *next;		if(ntfs_init_inode(&ino,volume,inum)){			fprintf(stderr,"error finding %s\n",name);			return 1;		}		if(!name || !*name)break;		next=strpbrk(name,NTFS_PATH_SEP);		if(next){			*next='\0';			next++;		}		inum=ntfs_find_file(&ino,name);		if(inum==-1){			fprintf(stderr,"%s not found\n",name);			return 1;		}		name=next;	}while(1);	if(ntfs_init_inode(&ino,volume,inum))		fprintf(stderr,"error opening %s\n",name);	ntfs_cat_file(&ino,offset,length,buflen);	return 0;}/* * Local variables: * c-file-style: "linux" * End: */