#define GENERATION_ZERO_EXISTS 1
#define GENERATION_NUMBER_EXISTS 2
+static int commit_graph_checksum_valid(struct commit_graph *g)
+{
+ return hashfile_checksum_valid(g->data, g->data_len);
+}
+
int verify_commit_graph(struct repository *r, struct commit_graph *g, int flags)
{
uint32_t i, cur_fanout_pos = 0;
struct object_id prev_oid, cur_oid;
- unsigned char checksum[GIT_MAX_HEXSZ];
int generation_zero = 0;
- struct hashfile *f;
- int devnull;
struct progress *progress = NULL;
int local_error = 0;
if (verify_commit_graph_error)
return verify_commit_graph_error;
- devnull = open("/dev/null", O_WRONLY);
- f = hashfd(devnull, NULL);
- hashwrite(f, g->data, g->data_len - g->hash_len);
- finalize_hashfile(f, checksum, CSUM_CLOSE);
- if (!hasheq(checksum, g->data + g->data_len - g->hash_len)) {
+ if (!commit_graph_checksum_valid(g)) {
graph_report(_("the commit-graph file has incorrect checksum and is likely corrupt"));
verify_commit_graph_error = VERIFY_COMMIT_GRAPH_ERROR_HASH;
}