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Overview
Comment:Fix showwal.c so that it works with 64KiB pages.
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SHA1:fc4f7c115207b786e3cac8cb6be4db3131b99a46
User & Date: dan 2014-09-04 18:05:42
Context
2014-09-04
19:05
Avoid ever running a checkpoint in ota mode. check-in: 9ae44447 user: dan tags: ota-update
18:05
Fix showwal.c so that it works with 64KiB pages. check-in: fc4f7c11 user: dan tags: ota-update
11:03
Avoid calling sqlite3OsFetch() on a file-handle for which the xFetch method is NULL. check-in: 071f7f2d user: dan tags: ota-update
Changes
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Changes to tool/showwal.c.

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    }
    free(zMap);
  }  
}

int main(int argc, char **argv){
  struct stat sbuf;
  unsigned char zPgSz[2];
  if( argc<2 ){
    fprintf(stderr,"Usage: %s FILENAME ?PAGE? ...\n", argv[0]);
    exit(1);
  }
  fd = open(argv[1], O_RDONLY);
  if( fd<0 ){
    fprintf(stderr,"%s: can't open %s\n", argv[0], argv[1]);
    exit(1);
  }
  zPgSz[0] = 0;
  zPgSz[1] = 0;
  lseek(fd, 10, SEEK_SET);
  read(fd, zPgSz, 2);
  pagesize = zPgSz[0]*256 + zPgSz[1];
  if( pagesize==0 ) pagesize = 1024;
  printf("Pagesize: %d\n", pagesize);
  fstat(fd, &sbuf);
  if( sbuf.st_size<32 ){
    printf("file too small to be a WAL\n");
    return 0;
  }







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    }
    free(zMap);
  }  
}

int main(int argc, char **argv){
  struct stat sbuf;
  unsigned char zPgSz[4];
  if( argc<2 ){
    fprintf(stderr,"Usage: %s FILENAME ?PAGE? ...\n", argv[0]);
    exit(1);
  }
  fd = open(argv[1], O_RDONLY);
  if( fd<0 ){
    fprintf(stderr,"%s: can't open %s\n", argv[0], argv[1]);
    exit(1);
  }
  zPgSz[0] = 0;
  zPgSz[1] = 0;
  lseek(fd, 8, SEEK_SET);
  read(fd, zPgSz, 4);
  pagesize = zPgSz[1]*65536 + zPgSz[2]*256 + zPgSz[3];
  if( pagesize==0 ) pagesize = 1024;
  printf("Pagesize: %d\n", pagesize);
  fstat(fd, &sbuf);
  if( sbuf.st_size<32 ){
    printf("file too small to be a WAL\n");
    return 0;
  }