#include "../nsrHdrs/nsr.h"#include <stdlib.h>#include <stdio.h>#include <string.h>#include <ctype.h>#include "chkudf.h"#include "protos.h"/* *  Read a File Entry and extract the basics. */int ReadSpaceMap(void){  struct SpaceBitmapHdr *BMD;  int i;  for (i = 0; i < PTN_no; i++) {    if (Part_Info[i].Space != -1) {      printf("\n--Reading the Space Bitmap Descriptor for partition reference %d.\n", i);      printf("  Descriptor is %d sectors at %d:%d.\n",              Part_Info[i].SpLen >> bdivshift, i, Part_Info[i].Space);      BMD = (struct SpaceBitmapHdr *)malloc(Part_Info[i].SpLen);      if (BMD) {        ReadLBlocks(BMD, Part_Info[i].Space, i, Part_Info[i].SpLen >> bdivshift);        track_filespace(i, Part_Info[i].Space, Part_Info[i].SpLen);          CheckTag((struct tag *)BMD, Part_Info[i].Space, TAGID_SPACE_BMAP,                      0, Part_Info[i].SpLen);        if (Error.Code == ERR_TAGID) {          printf("**Not a space bitmap descriptor.\n");        } else {          DumpError();        }        if (!Error.Code) {          printf("  Partition is %d blocks long, requiring %d bytes.\n",                 Part_Info[i].Len, (Part_Info[i].Len + 7) >> 3);          if (U_endian32(BMD->N_Bits) != Part_Info[i].Len) {            printf("**Partition is %d blocks long and is described by %d bits.\n",                   Part_Info[i].Len, U_endian32(BMD->N_Bits));          }          if ((U_endian32(BMD->N_Bits) + 7) >> 3 != U_endian32(BMD->N_Bytes)) {            printf("**Bitmap descriptor requires %d bytes to hold %d bits.\n",                   U_endian32(BMD->N_Bytes), U_endian32(BMD->N_Bits));          }          if (Part_Info[i].SpMap && (U_endian32(BMD->N_Bytes) < Part_Info[i].SpLen)) {            memcpy(Part_Info[i].SpMap,                    (UINT8 *)BMD + sizeof(struct SpaceBitmapHdr), U_endian32(BMD->N_Bytes));            printf("  Read the space bitmap for partition reference %d.\n", i);          }        } else {          DumpError();        }        free(BMD);      } else {        printf("**Couldn't allocate memory for space bitmap.\n");  // if (BMD)      }    }  }  return 0;}