Unify writing of trustcache to new function

[trustcache.git] / trustcache.c

diff --git a/trustcache.c b/trustcache.c
index adc594c1461c62aaff81c713cd2184973b3ae619..cb6c7b0e1565afc9c71752503a4217af584ad42d 100644 (file)
--- a/trustcache.c
+++ b/trustcache.c
@@ -99,3 +99,29 @@ opentrustcache(const char *path)
        fclose(f);
        return cache;
 }
+
+int
+writetrustcache(struct trust_cache cache, const char *path)
+{
+       FILE *f = NULL;
+       if ((f = fopen(path, "wb")) == NULL) {
+               fprintf(stderr, "%s: %s\n", path, strerror(errno));
+               return -1;
+       }
+
+       cache.version = htole32(cache.version);
+       cache.num_entries = htole32(cache.num_entries);
+       fwrite(&cache, sizeof(struct trust_cache) - sizeof(struct trust_cache_entry1*), 1, f);
+       cache.version = le32toh(cache.version);
+       cache.num_entries = le32toh(cache.num_entries);
+
+       for (uint32_t i = 0; i < cache.num_entries; i++) {
+               if (cache.version == 0)
+                       fwrite(&cache.hashes[i], sizeof(trust_cache_hash0), 1, f);
+               else if (cache.version == 1)
+                       fwrite(&cache.entries[i], sizeof(struct trust_cache_entry1), 1, f);
+       }
+
+       fclose(f);
+       return 0;
+}