+ last_sparse = 0;
+ return 0;
+}
+
+int write_sparse(int f,char *buf,int len)
+{
+ int l1=0,l2=0;
+ int ret;
+
+ if (!sparse_files)
+ return write(f,buf,len);
+
+ for (l1=0;l1<len && buf[l1]==0;l1++) ;
+ for (l2=0;l2<(len-l1) && buf[len-(l2+1)]==0;l2++) ;
+
+ last_byte = buf[len-1];
+
+ if (l1 == len || l2 > 0)
+ last_sparse=1;
+
+ if (l1 > 0)
+ lseek(f,l1,SEEK_CUR);