int bPrompted = 0;
  int bSetUrl = 1;
 
  if( zUrl==0 ){
    zUrl = db_get("last-sync-url", 0);
    if( zUrl==0 ) return;
    g.urlPasswd = unobscure(db_get("last-sync-pw", 0));
    g.zFossilUser = db_get("ssh-fossil-user", 0);
    bSetUrl = 0;
  }

  if( strncmp(zUrl, "http://", 7)==0
   || strncmp(zUrl, "https://", 8)==0
   || strncmp(zUrl, "ssh://", 6)==0
  ){

      free(zFile);
      fossil_fatal("unknown repository: %s", zUrl);
    }
  }else{
    fossil_fatal("unknown repository: %s", zUrl);
  }
  g.urlFlags = urlFlags;
  if( g.urlIsSsh ){
    g.zFossilUser = db_get("ssh-fossil-user", 0);
  }
  if( g.urlIsFile ){
    Blob cfile;
    dehttpize(zFile);  
    file_canonical_name(zFile, &cfile, 0);
    free(zFile);
    g.urlProtocol = "file";
    g.urlPath = "";