affinfo.cpp
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affinfo.cpp
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	/*
	* afinfo.cpp:
	*
	* print information about an aff file
	*/

	/*
	* Copyright (c) 2005--2008
	* Simson L. Garfinkel and Basis Technology, Inc.
	* All rights reserved.
	*
	* This code is derrived from software contributed by
	* Simson L. Garfinkel
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	* 1. Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the
	* documentation and/or other materials provided with the distribution.
	* 3. All advertising materials mentioning features or use of this software
	* must display the following acknowledgement:
	* This product includes software developed by Simson L. Garfinkel
	* and Basis Technology Corp.
	* 4. Neither the name of Simson Garfinkel, Basis Technology, or other
	* contributors to this program may be used to endorse or promote
	* products derived from this software without specific prior written
	* permission.
	*
	* THIS SOFTWARE IS PROVIDED BY SIMSON GARFINKEL, BASIS TECHNOLOGY,
	* AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
	* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
	* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	* DISCLAIMED. IN NO EVENT SHALL SIMSON GARFINKEL, BAIS TECHNOLOGy,
	* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
	* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
	* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
	* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	* SUCH DAMAGE.
	*/


	#include "affconfig.h"
	#include "afflib.h"
	#include "utils.h"
	#include "afflib_i.h"

	#ifdef USE_S3
	#include "s3_glue.h"
	#endif

	#include <ctype.h>
	#include <zlib.h>
	#include <openssl/md5.h>
	#include <openssl/sha.h>
	#include <assert.h>

	#include <algorithm>
	#include <cstdlib>
	#include <vector>
	#include <string>

	#ifdef HAVE_CSTRING
	#include <cstring>
	#endif

	using namespace std;

	#ifdef HAVE_CURSES_H
	#include <curses.h>
	#endif

	#ifdef HAVE_TERM_H
	#include <term.h>
	#endif

	#ifdef HAVE_NCURSES_TERM_H
	#include <ncurses/term.h>
	#endif

	#ifdef WIN32
	#include "unix4win32.h"
	#endif

	const char *progname = "afinfo";

	#define VALIDATE_MD5 0x01
	#define VALIDATE_SHA1 0x02

	int opt_validate = 0;
	int opt_info = 1;
	int opt_all = 0;
	int opt_wide = 0;
	int opt_l = 0;
	unsigned int cols = 80; // default
	int opt_x = 0;
	int opt_b = 0;
	int opt_identify = 1;
	int opt_verbose = 0;
	int opt_y = 0;
	int opt_hexbuf = AF_HEXBUF_SPACE4 \| AF_HEXBUF_UPPERCASE;
	int opt_page_validate = 0;
	int opt_no_preview = 0;
	int opt_preview_md5 = 0;
	int opt_debug = 0;
	int opt_figure_media = 0;
	const char *opt_passphrase = 0;

	vector<string> opt_seglist; // just info these segments
	bool something_was_decrypted = false;
	const char *term = 0;


	/**
	* select bold on or off
	*/
	void bold(int on)
	{
	if(!term) return;
	#if defined(HAVE_LIBNCURSES)
	#ifdef HAVE_ISATTY
	if(!isatty(fileno(stdout))) return;
	#endif
	if(on) tputs(enter_bold_mode,1,putchar);
	else tputs(exit_attribute_mode,0,putchar);
	#endif
	}

	/**
	* select a color.
	* @param num - 0 is black; 1 red; 2 green; 3 yellow; 4 blue; 5 magenta; 6 cyan; 7 white;
	*/

	#define RED 1
	#define WHITE 7

	void color(int num)
	{
	#ifdef HAVE_ISATTY
	if(!isatty(fileno(stdout))) return;
	#endif
	#ifdef HAVE_CURSES_H
	char setf = tigetstr((char )"setf");
	if(!setf) setf = tigetstr((char *)"setaf");
	if(setf){
	putp(tparm(setf,num));
	}
	#endif
	}


	void usage()
	{
	printf("%s version %s\n",progname,PACKAGE_VERSION);
	printf("usage: %s [options] infile\n",progname);
	printf(" -a = print ALL segments (normally data segments are suppressed)\n");
	printf(" -b = print how many bad blocks in each segment (implies -a)\n");
	printf(" -i = identify the files, don't do info on them.\n");
	printf(" -w = wide output; print more than 1 line if necessary.\n");
	printf(" -s segment = Just print information about 'segment'.\n");
	printf(" (may be repeated)\n");
	printf(" -m = validate MD5 hash of entire image\n");
	printf(" -S = validate SHA1 hash of entire image\n");
	printf(" -v = validate the hash of each page (if present)\n");
	printf(" -y = don't print segments of lengths 16 and 20 as hex)\n");
	printf(" -p<passphrase> = Specify <passphrase> to decrypt file\n");
	printf(" -l = Just print the segment names and exit\n");
	printf(" -V = Just print the version number and exit.\n");

	printf("\nPreview Options:\n");
	printf(" -X = no data preview; just print the segment names\n");
	printf(" -x = print binary values in hex (default is ASCII)\n");
	printf("\nMisc:\n");
	printf(" -d = debug\n");
	printf(" -A = if infile is a device, print the number of sectors\n");
	printf(" and sector size to stdout in XML. Otherwise error\n");
	printf("\nCompilation:\n");
	printf(" LZMA compression: Enabled\n");
	#ifdef USE_LIBEWF
	printf(" LIBEWF enabled\n");
	#endif
	#ifdef USE_QEMU
	printf(" QEMU enabled\n");
	#endif
	#ifdef USE_FUSE
	printf(" FUSE enabled\n");
	#endif
	#ifdef USE_S3
	printf(" Amazon S3 enabled\n");
	#endif
	#ifdef HAVE_LIBEXPAT
	printf(" HAVE_LIBEXPAT ");
	#endif
	printf("\n");

	if(opt_debug){
	for(int i=0;i<9;i++){
	color(i);printf("Color %d\n",i);color(7);
	}
	}

	exit(0);
	}


	AFFILE *af=0;

	void sig_info(int arg)
	{
	if(af==0) return;
	printf("Validating %"I64d" of %"I64d"\n", af->pos,af->image_size);
	}




	void validate(const char *infile)
	{
	af = af_open(infile,O_RDONLY,0);
	if(!af) af_err(1,infile);
	switch(af_identify(af)){
	case AF_IDENTIFY_AFF:
	case AF_IDENTIFY_AFM:
	case AF_IDENTIFY_AFD:
	break;
	default:
	printf("%s is not an AFF file\n",infile);
	af_close(af);
	return;
	}

	printf("\nValidating ");
	if(opt_validate & VALIDATE_MD5) printf("MD5 ");
	if(opt_validate == (VALIDATE_MD5\|VALIDATE_SHA1)) printf("and ");
	if(opt_validate & VALIDATE_SHA1) printf("SHA1 ");
	printf("hash codes.\n");


	#ifdef SIGINFO
	signal(SIGINFO,sig_info);
	#endif

	/* Get a list of all the segments to see if there is a space */
	af_rewind_seg(af);
	char segname[AF_MAX_NAME_LEN];
	vector <int> pages;
	memset(segname,0,sizeof(segname));
	while(af_get_next_seg(af,segname,sizeof(segname),0,0,0)==0){
	int64_t page_num = af_segname_page_number(segname);
	if(page_num>=0) pages.push_back(page_num);
	}

	if(pages.size()==0){
	printf("No pages to validate.\n");
	af_close(af);
	}

	sort(pages.begin(),pages.end());
	vector<int>::iterator i = pages.begin();
	int last = *i;
	i++;
	for(; i!= pages.end();i++){
	if(last+1 != *i){
	printf("gap in pages (%d!=%d); %s can't be validated.\n",last+1,*i,infile);
	af_close(af);
	return;
	}
	last = *i;
	}

	/* Set up the hash machinery */
	MD5_CTX md5;
	MD5_Init(&md5);

	SHA_CTX sha;
	SHA1_Init(&sha);

	uint64_t total_bytes = 0;
	while(!af_eof(af)){
	unsigned char buf[65536]; // a decent size
	size_t bytes = af_read(af,buf,sizeof(buf));
	if(bytes==0) break; // reached sparse region of file
	total_bytes += bytes;
	if(opt_validate & VALIDATE_MD5) MD5_Update(&md5,buf,bytes);
	if(opt_validate & VALIDATE_SHA1) SHA1_Update(&sha,buf,bytes);
	}

	/* Finish the hash calculations and write to the db */

	if(opt_validate & VALIDATE_MD5){
	unsigned char md5_stored[16];
	size_t md5len = sizeof(md5_stored);
	unsigned char md5_computed[16];
	char buf[256];

	MD5_Final(md5_computed,&md5);
	printf("computed md5: %s\n",
	af_hexbuf(buf,sizeof(buf),md5_computed,16,opt_hexbuf));
	if(af_get_seg(af,AF_MD5,0,md5_stored,&md5len)==0){
	printf(" stored md5: %s ",
	af_hexbuf(buf,sizeof(buf),md5_stored,16,opt_hexbuf));
	if(md5len==16 && !memcmp((const char *)md5_stored,
	(const char *)md5_computed,16)){
	printf(" MATCH\n");
	}
	else {
	printf(" NO MATCH!\n");
	}
	}
	else {
	printf("(no MD5 in AFF file)\n");
	}
	}


	if(opt_validate & VALIDATE_SHA1){
	unsigned char sha1_stored[20];
	size_t sha1len = sizeof(sha1_stored);
	unsigned char sha1_computed[20];
	char buf[256];

	SHA1_Final(sha1_computed,&sha);
	printf("computed sha1: %s \n",af_hexbuf(buf,sizeof(buf),sha1_computed,20,opt_hexbuf));
	if(af_get_seg(af,AF_SHA1,0,sha1_stored,&sha1len)==0){
	printf(" stored sha1: %s ",af_hexbuf(buf,sizeof(buf),sha1_stored,20,opt_hexbuf));
	if(sha1len==20 && !memcmp((const char *)sha1_stored,
	(const char *)sha1_computed,20)){
	printf(" MATCH\n");
	}
	else {
	printf(" NO MATCH!\n");
	}
	}
	else {
	printf("(no SHA1 in AFF file)\n");
	}
	}

	af_close(af);
	}

	#define OUTLINE_LEN 65536


	bool display_as_time(const char *segname)
	{
	if(strcmp(segname,AF_ACQUISITION_SECONDS)==0) return true;
	return false;
	}

	bool display_as_hex(const char *segname,int data_len)
	{
	if(af_display_as_hex(segname)) return true;
	if(data_len==16 && strstr(segname,"md5")) return true;
	if(data_len==20 && strstr(segname,"sha1")) return true;
	if(opt_x) return true;
	if(opt_preview_md5) return true;
	return false;
	}

	void badscan(AFFILE *af,int page_number,size_t data_len)
	{
	size_t page_size = af->image_pagesize;
	unsigned char buf = (unsigned char )malloc(page_size);
	if(af_get_page(af,page_number,buf,&page_size)){
	err(1,"Could not read page %d",page_number);
	}
	printf("page_size = %d\n",(int)page_size);
	int sectors = 0;
	int bad_sectors = 0;
	int funny_sectors = 0;
	for(unsigned int offset=0;offset<page_size;offset+=af->image_sectorsize){
	sectors++;
	if(af_is_badsector(af,buf+offset)){
	bad_sectors ++;
	continue;
	}
	#ifdef __FreeBSD__
	/* Look for the part of the bad flag that we know and love */
	if(strnstr((char *)buf+offset,"BAD SECTOR",af->image_sectorsize)){
	funny_sectors++;
	continue;
	}
	#endif
	}
	printf(" sectors scanned: %d bad: %d ", sectors,bad_sectors);
	if(funny_sectors){
	printf("suspicious: %d ",funny_sectors);
	}
	printf("\n");
	free(buf);
	}


	/* print_info:
	* Print the info on a given segment name
	*/
	void print_info(AFFILE af,const char segname)
	{
	unsigned long arg;
	unsigned char *data = 0;
	int dots = 0;
	u_int display_len = 0;
	char *cc = 0;

	/* Check to see if this is a null page. */
	if(segname[0]==0 && opt_all==0){
	return;
	}
	if(segname[0]=='[' && opt_all){
	puts(segname);
	return;
	}

	/* Check to see if this is a data page */
	int64_t page_num = af_segname_page_number(segname);

	size_t data_len = 0;
	/* First find out how big the segment is, then get the data */
	if(af_get_seg(af,segname,&arg,0,&data_len)){
	printf("%-25s SEGMENT NOT FOUND\n",segname);
	return;
	}

	/* is this an encrypted segment that I have decrypted?
	* Turn off automatic decryption and see if I can get it again...
	* If we can get it again, then it wasn't decrypted.
	*/
	int prev = af_set_option(af,AF_OPTION_AUTO_DECRYPT,0);
	bool was_decrypted = ( af_get_seg(af,segname,0,0,0)!=0) ;
	af_set_option(af,AF_OPTION_AUTO_DECRYPT,prev);

	if(was_decrypted){
	bold(1);
	something_was_decrypted = true; // print key at bottom
	}

	/* Start the output line */
	char output_line[OUTLINE_LEN];
	memset(output_line,0,sizeof(output_line));

	/* Now append the arg and the data len */
	sprintf(output_line,"%-24s %8ld %8zd ",segname,arg,data_len);

	if(opt_no_preview){
	printf("%s\n",output_line);
	goto done;
	}

	data = (unsigned char *)malloc(data_len);
	if(af_get_seg(af,segname,0,data,&data_len)){
	warn("af_get_seg_2 failed: segname=%s data_len=%zd",segname,data_len);
	goto done;
	}

	/* Special handling of values that should be displayed as time */
	if(display_as_time(segname)){
	int hours = arg / 3600;
	int minutes = (arg / 60) % 60;
	int seconds = arg % 60;
	printf("%s= %02d:%02d:%02d (hh:mm:ss)\n",output_line,hours,minutes,seconds);
	goto done;
	}

	/* Special handling of quadwords that should be printed as such? */
	if(((arg == AF_SEG_QUADWORD) && (data_len==8)) \|\| af_display_as_quad(segname)){
	/* Print it as a 64-bit value.
	* The strcmp is there because early AF_IMAGESIZE segs didn't set
	* AF_SEG_QUADWORD...
	*/
	switch(data_len){
	case 8:
	printf("%s= %"I64d" (64-bit value)\n",
	output_line,af_decode_q(data));
	break;
	case 0:
	printf("%s= 0 (0-length segment)\n",output_line);
	break;
	default:
	printf("%s= CANNOT DECODE %d byte segment\n",output_line,(int)data_len);
	}
	goto done;
	}


	/* See if I need to truncate */
	display_len = data_len;
	if(opt_wide==0 && data_len>32){ // don't bother showing more than first 32 bytes
	dots = 1;
	display_len = 32;
	}

	cc = output_line + strlen(output_line);

	if(opt_preview_md5){
	u_char md5[32];
	MD5(data,data_len,md5);
	memcpy(data,md5,32);
	data_len = 32;
	}
	if(display_as_hex(segname,display_len)){
	char buf[80];
	snprintf(cc,sizeof(output_line)-strlen(output_line),
	"%s%s",af_hexbuf(buf,sizeof(buf),data,display_len,opt_hexbuf),
	dots ? "..." : "");
	/* Special code for SHA1 */
	if(!opt_wide && strcmp(segname,AF_SHA1)==0){
	int r = fwrite(output_line,1,82,stdout);
	if(r!=82) fprintf(stderr,"fwrite(output_line,1,82,stdout) returned %d\n",r);
	printf("\n%62s\n",output_line+82);
	goto done;
	}
	}
	else {
	/* Fill it out with some printable data */
	unsigned int i;
	if(display_len > sizeof(output_line)-strlen(output_line)){
	display_len = sizeof(output_line)-strlen(output_line);
	}
	for(i=0;i<display_len;i++){
	*cc = data[i];
	if(isprint(cc)==0) cc='.';
	if(cc=='\n' \|\| cc=='\r') *cc=' ';
	cc++;
	}
	*cc = 0;
	}

	/* Now print the results... */
	if(!opt_wide){
	if(strlen(output_line)>cols){
	output_line[cols-4] = '.';
	output_line[cols-3] = '.';
	output_line[cols-2] = '.';
	output_line[cols-1] = '\000';
	}
	}
	fputs(output_line,stdout);
	if(page_num>=0 && opt_b){
	badscan(af,page_num,data_len);
	}
	if(opt_page_validate && page_num>=0){
	/* Get the page again; this may involve decompression */
	unsigned char page_data = (unsigned char )malloc(af->image_pagesize);
	size_t page_data_len = af->image_pagesize;
	if(af_get_page(af,page_num,page_data,&page_data_len)){
	printf("** COULD NOT READ UNCOMPRESSED PAGE ");
	goto skip1;
	}

	char hash_segname[32];
	unsigned char hash_buf[16];
	unsigned char hash_calc[16];
	size_t hash_len = sizeof(hash_buf);
	snprintf(hash_segname,sizeof(hash_segname),AF_PAGE_MD5,page_num);
	printf(" ");
	if(af_get_seg(af,hash_segname,0,hash_buf,&hash_len)){
	printf(" NO SEGMENT %s ",hash_segname);
	goto skip1;
	}

	MD5(page_data,page_data_len,hash_calc);
	if(memcmp(hash_buf,hash_calc,sizeof(hash_buf))!=0){
	char hb[32];
	printf(" HASH INVALID \n%30s Calculated %s\n","",
	af_hexbuf(hb,sizeof(hb),hash_calc,16,opt_hexbuf));
	printf("%30s Wanted %s ","",af_hexbuf(hb,sizeof(hb),hash_buf,16,opt_hexbuf));
	printf("data_len=%d\n",(int)data_len);
	} else{
	printf("HASH OK ");
	}
	free(page_data);
	}
	skip1:;
	putchar('\n');
	done:
	if(data) free(data);
	bold(0); // make sure bold is off

	//color(WHITE); // make sure we are back to normal color
	}


	/* Print the information on a specific file. */
	int info_file(const char *infile)
	{
	unsigned long total_segs = 0;
	unsigned long total_pages = 0;
	unsigned long total_hashes = 0;
	unsigned long total_signatures =0;
	unsigned long total_nulls = 0;
	struct af_vnode_info vni;

	AFFILE *af = af_open(infile,O_RDONLY,0);
	if(!af) af_err(1,"Cannot open %s",infile);
	if(af_vstat(af,&vni)) err(1,"%s: af_vstat failed",infile);

	if(opt_l){
	/* Just list the segments and exit */
	aff::seglist sl;
	sl.get_seglist(af);
	for(aff::seglist::const_iterator i = sl.begin(); i!=sl.end(); i++){
	printf("%s\n",(*i).name.c_str());
	}
	af_close(af);
	return 0;
	}

	if(vni.segment_count_encrypted>0 \|\| vni.segment_count_signed>0){
	printf("%s: has %s%s%ssegments\n",infile,
	(vni.segment_count_encrypted ? "encrypted " : ""),
	((vni.segment_count_encrypted && vni.segment_count_signed) ? "and ": ""),
	(vni.segment_count_signed ? "signed " : ""));
	}


	if(opt_passphrase){
	if(af_use_aes_passphrase(af,opt_passphrase)){
	errx(1,"%s: cannot use passphrase",opt_passphrase);
	}
	}

	printf("\n%s\n",af_filename(af));
	const char *v1 = "data";
	const char *v2 = "====";

	if(opt_all==0) printf("[skipping data segments]\n");
	if(opt_all==0 && vni.segment_count_encrypted) printf("[skipping encrypted segments]\n");
	if(opt_no_preview){
	v1 = "";
	v2 = "";
	}
	if(opt_preview_md5){
	v1 = "md5";
	}

	printf(" data \n");
	printf("Segment arg length %s\n",v1);
	printf("======= ========= ======== %s\n",v2);

	/* If a list of segments was specified by the user, just use that list */
	if(opt_seglist.size()>0){
	for(vector<string>::iterator i = opt_seglist.begin();
	i != opt_seglist.end();
	i++){
	const char *segname = i->c_str();
	print_info(af,segname);
	}
	af_close(af);
	return 0;
	}

	/* Go through the whole file, get all of the segments, put them in a list */
	vector <string> segments;
	char segname[AF_MAX_NAME_LEN];
	af_rewind_seg(af); // start at the beginning
	int64_t total_datalen = 0;
	size_t total_segname_len = 0;
	size_t datalen = 0;
	int aes_segs=0;
	while(af_get_next_seg(af,segname,sizeof(segname),0,0,&datalen)==0){
	total_segs ++;
	total_datalen += datalen;
	total_segname_len += strlen(segname);
	if(segname[0]==0) total_nulls++;

	/* Check to see if this is a regular page or a hash page */
	char hash[64];
	int64_t page_num = af_segname_page_number(segname);
	int64_t hash_num = af_segname_hash_page_number(segname,hash,sizeof(hash));
	if(page_num>=0) total_pages++;
	if(hash_num>=0) total_hashes++;
	if(strstr(segname,AF_SIG256_SUFFIX)) total_signatures++;
	if(strstr(segname,AF_AES256_SUFFIX)) aes_segs++;
	if(opt_all==0 && (page_num>=0\|\|hash_num>=0)) continue; // skip
	if(opt_all==0 && af_is_encrypted_segment(segname)) continue; // skip

	if(segname[0]==0 && datalen>0 && opt_all){
	snprintf(segname,sizeof(segname),"[null %zd bytes]",datalen);
	}
	segments.push_back(segname);
	}

	/* Now process the segments */
	for(vector<string>::const_iterator i = segments.begin();
	i != segments.end(); i++){
	print_info(af,i->c_str());
	}

	/* Print the key */
	if(something_was_decrypted){
	bold(1);
	printf("Bold indicates segments that were decrypted.\n");
	bold(0);
	}


	printf("\n");
	printf("Total segments: %8lu (%lu real)\n", total_segs,total_segs-total_nulls);
	if(aes_segs){
	printf(" Encrypted segments: %8u\n",aes_segs);
	}
	printf(" Page segments: %8lu\n",total_pages);
	printf(" Hash segments: %8lu\n",total_hashes);
	printf(" Signature segments: %8lu\n",total_signatures);
	printf(" Null segments: %8lu\n",total_nulls);
	if(opt_all){
	printf(" Empty segments: %8lu\n",total_nulls);
	printf("\n");
	printf("Total data bytes in segments: %"I64d"\n",total_datalen);

	printf("Total space in file dedicated to segment names: %zd\n",
	total_segname_len);
	printf("Total overhead for %lu segments: %zd bytes (%lu*(%zd+%zd))\n",
	total_segs,
	(size_t) total_segs*(sizeof(struct af_segment_head) +sizeof(struct af_segment_tail)),
	total_segs,
	sizeof(struct af_segment_head),
	sizeof(struct af_segment_tail));
	printf("Overhead for AFF file header: %zd bytes\n",sizeof(struct af_head));
	}

	int64_t device_sectors = 0;
	af_get_segq(af,AF_DEVICE_SECTORS,&device_sectors);
	if(device_sectors==0){
	/* See if we can fake it */
	unsigned long cylinders=0;
	unsigned long heads=0;
	unsigned long sectors_per_track=0;
	af_get_seg(af,AF_CYLINDERS,&cylinders,0,0);
	af_get_seg(af,AF_HEADS,&heads,0,0);
	af_get_seg(af,AF_SECTORS_PER_TRACK,&sectors_per_track,0,0);
	device_sectors = cylinders * heads * sectors_per_track;
	}
	//printf("device_sectors=%"I64d"\n",device_sectors);


	int some_missing_pages = 1;
	if(af->image_pagesize && af->image_sectorsize && device_sectors){
	int64_t device_bytes = (int64_t)device_sectors * af->image_sectorsize;
	int64_t device_pages = (device_bytes+af->image_pagesize-1) / af->image_pagesize;
	int64_t missing_pages = device_pages - total_pages;
	//printf("device_bytes=%"I64d"\n",device_bytes);
	//printf("device_pages=%"I64d"\n",device_pages);
	if(missing_pages!=0){
	printf("Missing page segments: %8"I64u"\n",missing_pages);
	}
	else {
	some_missing_pages=0;
	}
	}
	if (some_missing_pages){
	if(((total_pages-1) * af->image_pagesize <= af->image_size) &&
	((total_pages) * af->image_pagesize >= af->image_size)){
	some_missing_pages = 0;
	}
	}

	if(some_missing_pages && opt_debug){
	printf("Cannot calculate missing pages\n");
	printf(" device_sectors=%"I64d" image_pagesize=%lu sectorsize=%lu\n",
	device_sectors,af->image_pagesize,af->image_sectorsize);
	}
	af_close(af);
	return 0;

	}


	void figure_media(const char *fn)
	{
	int fd = open(fn,O_RDONLY,0);
	if(fd<0) err(1,"open(%s)",fn);
	struct af_figure_media_buf afb;
	if(af_figure_media(fd,&afb)){
	err(1,"af_figure_media(%s)",fn);
	}
	printf("<?xml version='1.0' encoding='UTF-8'?>\n");
	printf("<!DOCTYPE Server >\n");
	printf("<device name='%s'>\n",fn);
	printf(" <sector_size>%d</sector_size>\n",afb.sector_size);
	printf(" <total_sectors>%"PRId64"</total_sectors>\n",afb.total_sectors);
	printf(" <max_read_blocks>%"PRIu64"</max_read_blocks>\n",afb.max_read_blocks);
	printf("</device>\n");
	close(fd);
	}

	int main(int argc,char **argv)
	{
	int ch;
	const char *infile;

	/* Figure out how many cols the screen has... */
	#ifdef HAVE_LIBNCURSES
	term = getenv("TERM");
	if(term){
	setupterm((char )0,1,(int )0);
	start_color();
	cols = tgetnum((char *)"co");
	}
	#endif

	while ((ch = getopt(argc, argv, "abh?s:SmiIwj:p:xvVX5dAl")) != -1) {
	switch (ch) {
	case 'a': opt_all++; break;
	case 'b': opt_all ++; opt_b ++; break;
	case 'i': opt_info=0; opt_identify = 1; break;
	case 'w': opt_wide++; break;
	case 'X': opt_no_preview++;break;
	case 'x': opt_x++; break;
	case 'y': opt_y++; break;
	case 'l': opt_l++;break;
	case 'm': opt_validate \|= VALIDATE_MD5; break;
	case 'S': opt_validate \|= VALIDATE_SHA1; break;
	case 'v': opt_page_validate = 1;break;
	case 'p': opt_passphrase = optarg; break;
	case '5': opt_preview_md5 = 1;break;
	case 'd': opt_debug = 1;break;
	case 'A': opt_figure_media = 1 ; break;

	case 'h':
	case '?':
	default:
	usage();
	break;
	case 's':
	opt_seglist.push_back(optarg); // add to the list of segments to info
	break;
	case 'V':
	printf("%s version %s\n",progname,PACKAGE_VERSION);
	exit(0);
	}
	}
	argc -= optind;
	argv += optind;

	if(argc<1){
	usage();
	}


	/* Loop through all of the files */
	while(*argv){
	infile = *argv++; // get the file
	argc--; // decrement argument counter

	const char *name = af_identify_file_name(infile,1);
	if(!name) err(1,"%s",infile);

	if(opt_figure_media){ figure_media(infile);continue;}
	if(opt_identify) printf("%s is a %s file\n",infile,name);
	if(opt_info) info_file(infile);
	if(opt_validate) validate(infile);
	}
	#ifdef USE_S3
	s3_audit(0);
	#endif
	return(0);
	}

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