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/* Subpart directory header version 1 support */
/* SPDX-License-Identifier: GPL-2.0-only */
#include <sys/types.h>
#include "cse_serger.h"
struct subpart_hdr {
uint32_t signature; /* SUBPART_SIGNATURE */
uint32_t count;
uint8_t hdr_version; /* Header version = 1 */
uint8_t entry_version; /* Entry version = 1 */
uint8_t length;
uint8_t checksum;
uint8_t name[4];
} __packed;
static void subpart_hdr_print(const subpart_hdr_ptr ptr)
{
const struct subpart_hdr *hdr = ptr;
printf("%-25s %.4s\n", "Signature", (const char *)&hdr->signature);
printf("%-25s %-25d\n", "Count", hdr->count);
printf("%-25s %-25d\n", "Header Version", hdr->hdr_version);
printf("%-25s %-25d\n", "Entry Version", hdr->entry_version);
printf("%-25s 0x%-23x\n", "Header Length", hdr->length);
printf("%-25s 0x%-23x\n", "Checksum", hdr->checksum);
printf("%-25s ", "Name");
for (size_t i = 0; i < sizeof(hdr->name); i++)
printf("%c", hdr->name[i]);
printf("\n");
}
static subpart_hdr_ptr subpart_hdr_read(struct buffer *buff)
{
struct subpart_hdr *hdr = malloc(sizeof(*hdr));
if (!hdr)
return NULL;
READ_MEMBER(buff, hdr->signature);
READ_MEMBER(buff, hdr->count);
READ_MEMBER(buff, hdr->hdr_version);
READ_MEMBER(buff, hdr->entry_version);
READ_MEMBER(buff, hdr->length);
READ_MEMBER(buff, hdr->checksum);
READ_MEMBER(buff, hdr->name);
return hdr;
}
static size_t subpart_get_count(const subpart_hdr_ptr ptr)
{
const struct subpart_hdr *hdr = ptr;
return hdr->count;
}
static void subpart_hdr_free(subpart_hdr_ptr ptr)
{
free(ptr);
}
const struct subpart_hdr_ops subpart_hdr_1_ops = {
.read = subpart_hdr_read,
.print = subpart_hdr_print,
.get_entry_count = subpart_get_count,
.free = subpart_hdr_free,
};
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