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/*
* This file is part of dds2tar.
* Copyright by J"org Weule
*/
#include <stdlib.h>
#include <stdio.h>
#include <sys/mtio.h>
#include <unistd.h>
#include <string.h>
#include "dds2tar.h"
#include "dds_tape.h"
int dds_is_tar_header_record(tar_record*const ptr){
int i;
unsigned int n = 0;
unsigned char *p = (char*)ptr ;
for (i = 0; i < 148; i++)
n += p[i];
for (i = 0; i < 8; i++)
n += ' ';
for (i = 156; i < 512; i++)
n += p[i];
sscanf(p + 148, "%8o", &i);
if ( n != ((int)' ') * 8 ){
if ( i == 0 ) {
sprintf(p+148 , "%o", n );
} else
if ( i != n ) return 0;
sscanf(ptr->hdr.size,"%o",&i);
i += 512 + 511 ;
i >>= 9 ;
} else i=1 ;
return i;
}
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