+static const char*
+getuserhomedir(const char *user)
+{
+ struct passwd *pw = getpwnam(user);
+
+ if (!pw)
+ die("Can't get user %s login information.\n", user);
+
+ return pw->pw_dir;
+}
+
+static const char*
+getcurrentuserhomedir(void)
+{
+ const char *homedir;
+ const char *user;
+ struct passwd *pw;
+
+ homedir = getenv("HOME");
+ if (homedir)
+ return homedir;
+
+ user = getenv("USER");
+ if (user)
+ return getuserhomedir(user);
+
+ pw = getpwuid(getuid());
+ if (!pw)
+ die("Can't get current user home directory\n");
+
+ return pw->pw_dir;
+}
+