rendered paste body#define _LARGEFILE_SOURCE#define _FILE_OFFSET_BITS 64#include <stdio.h>/* #define BIG_ENDIAN *//* Infomation provided in: * http://forums.virtualbox.org/viewtopic.php?t=8046 */typedef unsigned short uint16;typedef unsigned int uint32;typedef unsigned long long uint64;typedef char uuid_t[16];typedef struct vdiheader { char headerdesc[64]; uint32 signature; uint16 majorver; uint16 minorver; uint32 hdrsize; uint32 type; uint32 flags; char desc[256]; uint32 offsetblocks; uint32 offsetdata; uint32 cyls; uint32 heads; uint32 sectors; uint32 sectorsize; char unused1[4]; uint64 disksize; uint32 blocksize; uint32 blockextradata; uint32 blocksinhdd; uint32 blocksallocated; uuid_t uuid; uuid_t lastsnapuuid; uuid_t linkuuid; uuid_t parentuuid; char unused2[56];} vdiheader;char *vditypestr[] = { "NULL", "SPARSE", "FIXED"};void err_usage(char *progname) { fprintf(stderr,"Usage is: %s vdi1 vdi2 ...\n", progname);}void flipbytes(void *ptr, uint32 size) { char *cptr=(char *)ptr; uint32 init=0; uint32 halfsize=size>>1; size--; while(init<halfsize) { char tmpc=cptr[init]; cptr[init]=cptr[size]; cptr[size]=tmpc; init++; size--; }}#define flipuint16(n) flipbytes(n,sizeof(uint16))#define flipuint32(n) flipbytes(n,sizeof(uint32))#define flipuint64(n) flipbytes(n,sizeof(uint64))void readvdiheader(vdiheader *vdih, FILE *in) { fread(vdih, sizeof(vdiheader), 1, in);#ifdef BIG_ENDIAN flipuint32(&vdih->signature); flipuint16(&vdih->majorver); flipuint16(&vdih->minorver); flipuint32(&vdih->hdrsize); flipuint32(&vdih->type); flipuint32(&vdih->flags); flipuint32(&vdih->offsetblocks); flipuint32(&vdih->offsetdata); flipuint32(&vdih->cyls); flipuint32(&vdih->heads); flipuint32(&vdih->sectors); flipuint32(&vdih->sectorsize); flipuint64(&vdih->disksize); flipuint32(&vdih->blocksize); flipuint32(&vdih->blockextradata); flipuint32(&vdih->blocksinhdd); flipuint32(&vdih->blocksallocated);#endif //BIG_ENDIAN}void printvdiheader(vdiheader *vdih) { fprintf(stdout,"Description: %s\n",vdih->headerdesc); fprintf(stdout,"Signature: %08x\n",vdih->signature); fprintf(stdout,"Version: %u.%u\n",vdih->majorver,vdih->minorver); fprintf(stdout,"Header Size: %u\n", vdih->hdrsize); fprintf(stdout,"Image Type: %s\n", vditypestr[vdih->type]); fprintf(stdout,"Image Flags: %08x\n", vdih->flags); fprintf(stdout,"Image Description: %s\n", vdih->desc); fprintf(stdout,"Offset Blocks: %u\n", vdih->offsetblocks); fprintf(stdout,"Offset Data: %u\n", vdih->offsetdata); fprintf(stdout,"Geometry: %uC %uH %uS\n", vdih->cyls, vdih->heads, vdih->sectors); fprintf(stdout,"Sector Size: %u\n", vdih->sectorsize); fprintf(stdout,"Disk Size: %llu\n", vdih->disksize); fprintf(stdout,"Blocks: %u/%u\n", vdih->blocksinhdd, vdih->blocksallocated); fprintf(stdout,"Block Size: %u\n", vdih->blocksize); fprintf(stdout,"Block Extra Data: %08x\n", vdih->blockextradata);}int process(char *vdiname) { vdiheader vdih; FILE *fvdi=fopen(vdiname,"rb"); if(!fvdi) { fprintf(stderr,"Unable to open: %s\n",vdiname); return -1; } readvdiheader(&vdih,fvdi); printvdiheader(&vdih); fclose(fvdi); fvdi=NULL; return 0;}int main(int argc, char *argv[]) { int i=1; if(argc<2) { err_usage(argv[0]); return -1; } for(; i<argc; ++i) { process(argv[i]); } return 0;}