596   unsigned char *pBuf;    /* Content read from disk */  in readFile()  local
602   pBuf = sqlite3_malloc64( nIn );  in readFile()
603   if( pBuf==0 ) return 0;  in readFile()
604   nRead = fread(pBuf, (size_t)nIn, 1, in);  in readFile()
607     sqlite3_free(pBuf);  in readFile()
611   return pBuf;  in readFile()
622   unsigned char *pBuf;    /* Content to store on disk */  in updateFile()  local
631   pBuf = sqlite3_malloc64( sz );  in updateFile()
632   if( pBuf==0 ){  in updateFile()
635   sqlite3_randomness((int)sz, pBuf);   in updateFile()
643   nWritten = fwrite(pBuf, 1, (size_t)sz, out);  in updateFile()
656   sqlite3_free(pBuf);  in updateFile()