+ for (ple = gssd_k5_kt_princ_list; ple != NULL; ple = ple->next) {
+ if (krb5_principal_compare(context, ple->princ, princ))
+ return ple;
+ }
+ /* no match found */
+ return NULL;
+}
+
+/*
+ * Create, initialize, and add a new ple structure to the global list
+ */
+static struct gssd_k5_kt_princ *
+new_ple(krb5_context context, krb5_principal princ)
+{
+ struct gssd_k5_kt_princ *ple = NULL, *p;
+ krb5_error_code code;
+ char *default_realm;
+ int is_default_realm = 0;
+
+ ple = malloc(sizeof(struct gssd_k5_kt_princ));
+ if (ple == NULL)
+ goto outerr;
+ memset(ple, 0, sizeof(*ple));
+
+#ifdef HAVE_KRB5
+ ple->realm = strndup(princ->realm.data,
+ princ->realm.length);
+#else
+ ple->realm = strdup(princ->realm);
+#endif
+ if (ple->realm == NULL)
+ goto outerr;
+ code = krb5_copy_principal(context, princ, &ple->princ);
+ if (code)
+ goto outerr;
+
+ /*
+ * Add new entry onto the list (if this is the default
+ * realm, always add to the front of the list)
+ */
+
+ code = krb5_get_default_realm(context, &default_realm);
+ if (code == 0) {
+ if (strcmp(ple->realm, default_realm) == 0)
+ is_default_realm = 1;
+ k5_free_default_realm(context, default_realm);
+ }
+
+ if (is_default_realm) {
+ ple->next = gssd_k5_kt_princ_list;
+ gssd_k5_kt_princ_list = ple;
+ } else {
+ p = gssd_k5_kt_princ_list;
+ while (p != NULL && p->next != NULL)
+ p = p->next;
+ if (p == NULL)
+ gssd_k5_kt_princ_list = ple;
+ else
+ p->next = ple;
+ }
+
+ return ple;
+outerr:
+ if (ple) {
+ if (ple->realm)
+ free(ple->realm);
+ free(ple);
+ }
+ return NULL;
+}
+
+/*
+ * Given a principal, find an existing ple structure, or create one
+ */
+static struct gssd_k5_kt_princ *
+get_ple_by_princ(krb5_context context, krb5_principal princ)
+{
+ struct gssd_k5_kt_princ *ple;
+
+ /* Need to serialize list if we ever become multi-threaded! */
+
+ ple = find_ple_by_princ(context, princ);
+ if (ple == NULL) {
+ ple = new_ple(context, princ);
+ }
+
+ return ple;
+}
+
+/*
+ * Given a (possibly unqualified) hostname,
+ * return the fully qualified (lower-case!) hostname
+ */
+static int
+get_full_hostname(const char *inhost, char *outhost, int outhostlen)
+{
+ struct addrinfo *addrs = NULL;
+ struct addrinfo hints;
+ int retval;
+ char *c;
+
+ memset(&hints, 0, sizeof(hints));
+ hints.ai_socktype = SOCK_STREAM;
+ hints.ai_family = PF_UNSPEC;
+ hints.ai_flags = AI_CANONNAME;
+
+ /* Get full target hostname */
+ retval = getaddrinfo(inhost, NULL, &hints, &addrs);
+ if (retval) {
+ printerr(0, "%s while getting full hostname for '%s'\n",
+ gai_strerror(retval), inhost);
+ goto out;