}
/**
- * Get the home directory of the current user.
+ * Return the expansion of $HOME/.paraslash.
*
- * \return A dynamically allocated string that must be freed by the caller. If
- * the home directory could not be found, this function returns "/tmp".
+ * \return A pointer to memory that must not be freed by the caller. If the
+ * environment variable HOME is unset or empty, the function prints an error
+ * message and aborts.
+ *
+ * \sa getenv(3), getuid(2).
*/
-__must_check __malloc char *para_homedir(void)
+const char *get_confdir(void)
{
- struct passwd *pw = getpwuid(getuid());
- return para_strdup(pw? pw->pw_dir : "/tmp");
+ static const char *dot_para;
+ const char *home;
+
+ if (dot_para)
+ return dot_para;
+ home = getenv("HOME");
+ if (!home || !*home) {
+ PARA_EMERG_LOG("fatal: HOME is unset or empty");
+ exit(EXIT_FAILURE);
+ }
+ dot_para = make_message("%s/.paraslash", home);
+ return dot_para;
}
/**