+/**
+ * iterate_keys - call a function once for each key in the db.
+ * @iterfunc: The function to call.
+ * @ctx: A context pointer
+ *
+ * Calls iterfunc once for each key in the database. ctx is passed
+ * unaltered to iterfunc. This function is intended to aid database dumps
+ * and statistic calculations.
+ *
+ * Returns the number of keys we iterated over.
+ */
+int iterate_keys(void (*iterfunc)(void *ctx, struct openpgp_publickey *key),
+ void *ctx)
+{
+ int numkeys = 0;
+ struct openpgp_packet_list *packets = NULL;
+ struct openpgp_publickey *key = NULL;
+ DIR *dir;
+ char keyfile[1024];
+ int fd = -1;
+ struct dirent *curfile = NULL;
+
+ dir = opendir(config.db_dir);
+
+ if (dir != NULL) {
+ while ((curfile = readdir(dir)) != NULL) {
+ if (curfile->d_name[0] == '0' &&
+ curfile->d_name[1] == 'x') {
+ snprintf(keyfile, 1023, "%s/%s",
+ config.db_dir,
+ curfile->d_name);
+ fd = open(keyfile, O_RDONLY);
+
+ if (fd > -1) {
+ read_openpgp_stream(file_fetchchar,
+ &fd,
+ &packets,
+ 0);
+ parse_keys(packets, &key);
+
+ iterfunc(ctx, key);
+
+ free_publickey(key);
+ key = NULL;
+ free_packet_list(packets);
+ packets = NULL;
+ close(fd);
+ }
+ numkeys++;
+ }
+ }
+
+ closedir(dir);
+ dir = NULL;
+ }
+
+ return numkeys;
+}
+