+ if(!mesh->confbase) {
+ return true;
+ }
+
+ char path[PATH_MAX];
+ char tmp_path[PATH_MAX + 4];
+ make_host_path(mesh, conf_subdir, name, path, sizeof(path));
+ snprintf(tmp_path, sizeof(tmp_path), "%s.tmp", path);
+
+ FILE *f = fopen(tmp_path, "w");
+
+ if(!f) {
+ logger(mesh, MESHLINK_ERROR, "Failed to open `%s': %s", tmp_path, strerror(errno));
+ return false;
+ }
+
+ if(!config_write_file(mesh, f, config, key)) {
+ logger(mesh, MESHLINK_ERROR, "Failed to write `%s': %s", tmp_path, strerror(errno));
+ fclose(f);
+ return false;
+ }
+
+ if(fsync(fileno(f))) {
+ logger(mesh, MESHLINK_ERROR, "Failed to sync `%s': %s", tmp_path, strerror(errno));
+ fclose(f);
+ return false;
+ }
+
+ if(fclose(f)) {
+ logger(mesh, MESHLINK_ERROR, "Failed to close `%s': %s", tmp_path, strerror(errno));
+ return false;
+ }
+
+ if(rename(tmp_path, path)) {
+ logger(mesh, MESHLINK_ERROR, "Failed to rename `%s' to `%s': %s", tmp_path, path, strerror(errno));
+ return false;
+ }
+
+ return true;
+}
+
+/// Read the main configuration file.
+bool main_config_read(meshlink_handle_t *mesh, const char *conf_subdir, config_t *config, void *key) {
+ assert(conf_subdir);
+ assert(config);
+
+ if(!mesh->confbase) {
+ return false;
+ }
+
+ char path[PATH_MAX];
+ make_main_path(mesh, conf_subdir, path, sizeof(path));
+
+ FILE *f = fopen(path, "r");
+
+ if(!f) {
+ logger(mesh, MESHLINK_ERROR, "Failed to open `%s': %s", path, strerror(errno));
+ return false;
+ }
+
+ if(!config_read_file(mesh, f, config, key)) {
+ logger(mesh, MESHLINK_ERROR, "Failed to read `%s': %s", path, strerror(errno));
+ fclose(f);
+ return false;
+ }
+
+ fclose(f);
+
+ return true;
+}
+
+/// Write the main configuration file.
+bool main_config_write(meshlink_handle_t *mesh, const char *conf_subdir, const config_t *config, void *key) {
+ assert(conf_subdir);
+ assert(config);
+
+ if(!mesh->confbase) {
+ return true;
+ }
+
+ char path[PATH_MAX];
+ char tmp_path[PATH_MAX + 4];
+ make_main_path(mesh, conf_subdir, path, sizeof(path));
+ snprintf(tmp_path, sizeof(tmp_path), "%s.tmp", path);
+
+ FILE *f = fopen(tmp_path, "w");
+
+ if(!f) {
+ logger(mesh, MESHLINK_ERROR, "Failed to open `%s': %s", tmp_path, strerror(errno));
+ return false;
+ }
+
+ if(!config_write_file(mesh, f, config, key)) {
+ logger(mesh, MESHLINK_ERROR, "Failed to write `%s': %s", tmp_path, strerror(errno));
+ fclose(f);
+ return false;
+ }
+
+ if(fsync(fileno(f))) {
+ logger(mesh, MESHLINK_ERROR, "Failed to sync `%s': %s", tmp_path, strerror(errno));
+ fclose(f);
+ return false;
+ }
+
+ if(rename(tmp_path, path)) {
+ logger(mesh, MESHLINK_ERROR, "Failed to rename `%s' to `%s': %s", tmp_path, path, strerror(errno));
+ fclose(f);
+ return false;
+ }
+
+ if(fclose(f)) {
+ logger(mesh, MESHLINK_ERROR, "Failed to close `%s': %s", tmp_path, strerror(errno));
+ return false;
+ }
+
+ return true;
+}
+
+/// Read an invitation file from the confbase sub-directory, and immediately delete it.
+bool invitation_read(meshlink_handle_t *mesh, const char *conf_subdir, const char *name, config_t *config, void *key) {
+ assert(conf_subdir);
+ assert(name);
+ assert(config);
+
+ if(!mesh->confbase) {
+ return false;
+ }
+
+ char path[PATH_MAX];
+ char used_path[PATH_MAX];
+ make_invitation_path(mesh, conf_subdir, name, path, sizeof(path));
+ make_used_invitation_path(mesh, conf_subdir, name, used_path, sizeof(used_path));