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Diffstat (limited to 'commit-graph.c')
-rw-r--r--commit-graph.c15
1 files changed, 7 insertions, 8 deletions
diff --git a/commit-graph.c b/commit-graph.c
index 2bcb4e0..3860a0d 100644
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -2408,6 +2408,7 @@ cleanup:
#define VERIFY_COMMIT_GRAPH_ERROR_HASH 2
static int verify_commit_graph_error;
+__attribute__((format (printf, 1, 2)))
static void graph_report(const char *fmt, ...)
{
va_list ap;
@@ -2422,14 +2423,16 @@ static void graph_report(const char *fmt, ...)
#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;
@@ -2442,11 +2445,7 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g, int flags)
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;
}