- char *home;
- int len;
- home = getenv("HOME");
- strncpy(filename, home, FILENAME_MAX);
- len = strlen(filename);
+ char *env, *tmp, *ret;
+
+ /*
+ * Allow override of the PuTTY configuration location, and of
+ * specific subparts of it, by means of environment variables.
+ */
+ if (index == INDEX_DIR) {
+ struct passwd *pwd;
+
+ env = getenv("PUTTYDIR");
+ if (env)
+ return dupstr(env);
+ env = getenv("HOME");
+ if (env)
+ return dupprintf("%s/.putty", env);
+ pwd = getpwuid(getuid());
+ if (pwd && pwd->pw_dir)
+ return dupprintf("%s/.putty", pwd->pw_dir);
+ return dupstr("/.putty");
+ }
+ if (index == INDEX_SESSIONDIR) {
+ env = getenv("PUTTYSESSIONS");
+ if (env)
+ return dupstr(env);
+ tmp = make_filename(INDEX_DIR, NULL);
+ ret = dupprintf("%s/sessions", tmp);
+ sfree(tmp);
+ return ret;
+ }