// SPDX-License-Identifier: ISC#include <stdio.h>#include <stdlib.h>#include <string.h> #include "xdg.h" char *xdg_config_path(const char *suffix){	const char *xdg = getenv("XDG_CONFIG_HOME");	const char *home = getenv("HOME");	char *out = NULL; 	if (xdg != NULL && xdg[0] != '\0') {		size_t n = strlen(xdg) + 1 + strlen(suffix) + 1;		out = malloc(n);		if (out != NULL)			(void)snprintf(out, n, "%s/%s", xdg, suffix);	} else if (home != NULL && home[0] != '\0') {		size_t n = strlen(home) + sizeof("/.config/") + strlen(suffix);		out = malloc(n);		if (out != NULL)			(void)snprintf(out, n, "%s/.config/%s", home, suffix);	}	return out;}