[ICEs.git] / 568732 / writepart.c

#include <stddef.h>
#include <stdio.h>
#include <stdint.h>
#include <string.h>

struct apartition {
	unsigned char flag;
	char id[3];
	uint32_t start;
	uint32_t size;
} __attribute__((packed));
struct rootsector {
	char unused[0x156];
	struct apartition icdpart[8];
	char unused2[0xc];
	struct apartition part[4];
} __attribute__((packed));
typedef struct _PARTITION {
	unsigned long start;
	char id[4];
	unsigned long rootsec;
} PARTITION;
int partitions;
PARTITION part_table[64];
static void PART2diskpart(PARTITION * cp, struct apartition *dp,
			  unsigned long relto)
{
	memcpy(dp->id, cp->id, 3);
}

void put_boot(int first_ext, int last_ext, PARTITION * master_XGM)
{
	char buffer[sizeof(struct rootsector)];
	struct rootsector *rs = (struct rootsector *)buffer;
	struct apartition *pi;
	int i, bootable;
	PARTITION cont_XGM;
	pi = &rs->part[0];
	for (i = 0; i < partitions; ++i) {
		if (i == first_ext) {
			PART2diskpart(master_XGM, pi, 0);
			PART2diskpart(&part_table[i], &rs->part[0],
				      part_table[i].rootsec);
			if (i == last_ext) {
				PART2diskpart(&cont_XGM, &rs->part[1],
					      master_XGM->start);
			}
		}
	}
}

main() {
	printf("%i\n", sizeof(struct rootsector));
	printf("%i %i\n", offsetof(struct rootsector, part[0]));
}
Commit	Line	Data
bd3239d2 MF	1	#include <stddef.h>
	2	#include <stdio.h>
	3	#include <stdint.h>
	4	#include <string.h>
	5
	6	struct apartition {
	7	unsigned char flag;
	8	char id[3];
	9	uint32_t start;
	10	uint32_t size;
	11	} __attribute__((packed));
	12	struct rootsector {
	13	char unused[0x156];
	14	struct apartition icdpart[8];
	15	char unused2[0xc];
	16	struct apartition part[4];
	17	} __attribute__((packed));
	18	typedef struct _PARTITION {
	19	unsigned long start;
	20	char id[4];
	21	unsigned long rootsec;
	22	} PARTITION;
	23	int partitions;
	24	PARTITION part_table[64];
	25	static void PART2diskpart(PARTITION * cp, struct apartition *dp,
	26	unsigned long relto)
	27	{
	28	memcpy(dp->id, cp->id, 3);
	29	}
	30
	31	void put_boot(int first_ext, int last_ext, PARTITION * master_XGM)
	32	{
	33	char buffer[sizeof(struct rootsector)];
	34	struct rootsector rs = (struct rootsector )buffer;
	35	struct apartition *pi;
	36	int i, bootable;
	37	PARTITION cont_XGM;
	38	pi = &rs->part[0];
	39	for (i = 0; i < partitions; ++i) {
	40	if (i == first_ext) {
	41	PART2diskpart(master_XGM, pi, 0);
	42	PART2diskpart(&part_table[i], &rs->part[0],
	43	part_table[i].rootsec);
	44	if (i == last_ext) {
	45	PART2diskpart(&cont_XGM, &rs->part[1],
	46	master_XGM->start);
	47	}
	48	}
	49	}
	50	}
	51
	52	main() {
	53	printf("%i\n", sizeof(struct rootsector));
	54	printf("%i %i\n", offsetof(struct rootsector, part[0]));
	55	}