/*************************************/
/*                                   */
/* AUoH Progressive Door Prize Lotto */
/*                                   */
/*     DataBase extract routine      */
/*                                   */
/*  Michael D. Groshart - 16 Aug 89  */
/*                                   */
/*************************************/

#include <fcntl.h>

typedef struct sb_block
{
	long id;
	char user[4];
	char fill1[13];
	char code;
	char fill2;
	char data[105];
} SBblock;

#define NUMBLOCKS 8
#define BLOCKSIZE (sizeof(SBblock))
#define BUFFERLEN (NUMBLOCKS*BLOCKSIZE)

SBblock buffer[NUMBLOCKS];

#define DATABLOCK 0x80000000	/* Bit mask to determine block type */

read_db(name,add)
char *name;
void (*add)();
{
	register int fd, bytes, i, nent;

	if ((fd = open(name,O_RDONLY)) < 0) return 0;

	while ((bytes = read(fd,buffer,BUFFERLEN)) > 0)
	{
		for (i = 0; i < (bytes / BLOCKSIZE); i++)
		{
			if (buffer[i].id & DATABLOCK)
			{
				switch(buffer[i].code)
				{
					case 'N':
					case 'R':
						add(buffer[i].user,buffer[i].data);
					default:
						break;
				}
			}
		}
	}

	close(fd);

	return 1;
}