Пример #1
0
int main(int argc, char **argv){
  struct stat sbuf;
  unsigned char zPgSz[2];
  if( argc<2 ){
    usage(argv[0]);
    exit(1);
  }
  db = open(argv[1], O_RDONLY);
  if( db<0 ){
    fprintf(stderr,"%s: can't open %s\n", argv[0], argv[1]);
    exit(1);
  }
  zPgSz[0] = 0;
  zPgSz[1] = 0;
  lseek(db, 16, SEEK_SET);
  read(db, zPgSz, 2);
  pagesize = zPgSz[0]*256 + zPgSz[1]*65536;
  if( pagesize==0 ) pagesize = 1024;
  printf("Pagesize: %d\n", pagesize);
  fstat(db, &sbuf);
  mxPage = sbuf.st_size/pagesize;
  printf("Available pages: 1..%d\n", mxPage);
  if( argc==2 ){
    int i;
    for(i=1; i<=mxPage; i++) print_page(i);
  }else{
    int i;
    for(i=2; i<argc; i++){
      int iStart, iEnd;
      char *zLeft;
      if( strcmp(argv[i], "dbheader")==0 ){
        print_db_header();
        continue;
      }
      if( strcmp(argv[i], "pgidx")==0 ){
        page_usage_report(argv[1]);
        continue;
      }
      if( !isdigit(argv[i][0]) ){
        fprintf(stderr, "%s: unknown option: [%s]\n", argv[0], argv[i]);
        continue;
      }
      iStart = strtol(argv[i], &zLeft, 0);
      if( zLeft && strcmp(zLeft,"..end")==0 ){
        iEnd = mxPage;
      }else if( zLeft && zLeft[0]=='.' && zLeft[1]=='.' ){
        iEnd = strtol(&zLeft[2], 0, 0);
      }else if( zLeft && zLeft[0]=='b' ){
        int ofst, nByte, hdrSize;
        unsigned char *a;
        if( iStart==1 ){
          ofst = hdrSize = 100;
          nByte = pagesize-100;
        }else{
          hdrSize = 0;
          ofst = (iStart-1)*pagesize;
          nByte = pagesize;
        }
        a = getContent(ofst, nByte);
        decode_btree_page(a, iStart, hdrSize, &zLeft[1]);
        free(a);
        continue;
      }else if( zLeft && zLeft[0]=='t' ){
        unsigned char *a;
        int detail = 0;
        int recursive = 0;
        int i;
        for(i=1; zLeft[i]; i++){
          if( zLeft[i]=='r' ) recursive = 1;
          if( zLeft[i]=='d' ) detail = 1;
        }
        decode_trunk_page(iStart, pagesize, detail, recursive);
        continue;
      }else{
        iEnd = iStart;
      }
      if( iStart<1 || iEnd<iStart || iEnd>mxPage ){
        fprintf(stderr,
          "Page argument should be LOWER?..UPPER?.  Range 1 to %d\n",
          mxPage);
        exit(1);
      }
      while( iStart<=iEnd ){
        print_page(iStart);
        iStart++;
      }
    }
  }
  close(db);
}
Пример #2
0
int main(int argc, char **argv){
  sqlite3_int64 szFile;
  unsigned char *zPgSz;
  const char *zPrg = argv[0];     /* Name of this executable */
  char **azArg = argv;
  int nArg = argc;

  /* Check for the "--uri" or "-uri" switch. */
  if( nArg>1 ){
    if( sqlite3_stricmp("-raw", azArg[1])==0 
     || sqlite3_stricmp("--raw", azArg[1])==0
    ){
      g.bRaw = 1;
      azArg++;
      nArg--;
    }
  }

  if( nArg<2 ){
    usage(zPrg);
    exit(1);
  }

  fileOpen(zPrg, azArg[1]);
  szFile = fileGetsize();

  zPgSz = fileRead(16, 2);
  g.pagesize = zPgSz[0]*256 + zPgSz[1]*65536;
  if( g.pagesize==0 ) g.pagesize = 1024;
  sqlite3_free(zPgSz);

  printf("Pagesize: %d\n", g.pagesize);
  g.mxPage = (int)((szFile+g.pagesize-1)/g.pagesize);

  printf("Available pages: 1..%d\n", g.mxPage);
  if( nArg==2 ){
    int i;
    for(i=1; i<=g.mxPage; i++) print_page(i);
  }else{
    int i;
    for(i=2; i<nArg; i++){
      int iStart, iEnd;
      char *zLeft;
      if( strcmp(azArg[i], "dbheader")==0 ){
        print_db_header();
        continue;
      }
      if( strcmp(azArg[i], "pgidx")==0 ){
        page_usage_report(zPrg, azArg[1]);
        continue;
      }
      if( strcmp(azArg[i], "ptrmap")==0 ){
        ptrmap_coverage_report(azArg[1]);
        continue;
      }
      if( strcmp(azArg[i], "help")==0 ){
        usage(zPrg);
        continue;
      }
      if( !ISDIGIT(azArg[i][0]) ){
        fprintf(stderr, "%s: unknown option: [%s]\n", zPrg, azArg[i]);
        continue;
      }
      iStart = strtol(azArg[i], &zLeft, 0);
      if( zLeft && strcmp(zLeft,"..end")==0 ){
        iEnd = g.mxPage;
      }else if( zLeft && zLeft[0]=='.' && zLeft[1]=='.' ){
        iEnd = strtol(&zLeft[2], 0, 0);
      }else if( zLeft && zLeft[0]=='b' ){
        int ofst, nByte, hdrSize;
        unsigned char *a;
        if( iStart==1 ){
          ofst = hdrSize = 100;
          nByte = g.pagesize-100;
        }else{
          hdrSize = 0;
          ofst = (iStart-1)*g.pagesize;
          nByte = g.pagesize;
        }
        a = fileRead(ofst, nByte);
        decode_btree_page(a, iStart, hdrSize, &zLeft[1]);
        sqlite3_free(a);
        continue;
      }else if( zLeft && zLeft[0]=='t' ){
        int detail = 0;
        int recursive = 0;
        int j;
        for(j=1; zLeft[j]; j++){
          if( zLeft[j]=='r' ) recursive = 1;
          if( zLeft[j]=='d' ) detail = 1;
        }
        decode_trunk_page(iStart, detail, recursive);
        continue;
      }else{
        iEnd = iStart;
      }
      if( iStart<1 || iEnd<iStart || iEnd>g.mxPage ){
        fprintf(stderr,
          "Page argument should be LOWER?..UPPER?.  Range 1 to %d\n",
          g.mxPage);
        exit(1);
      }
      while( iStart<=iEnd ){
        print_page(iStart);
        iStart++;
      }
    }
  }
  fileClose();
  return 0;
}