+++ /dev/null
-/***
- This file is part of avahi.
-
- avahi is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as
- published by the Free Software Foundation; either version 2.1 of the
- License, or (at your option) any later version.
-
- avahi is distributed in the hope that it will be useful, but WITHOUT
- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
- Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with avahi; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- USA.
-***/
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <string.h>
-#include <stdlib.h>
-#include <ctype.h>
-#include <assert.h>
-
-#include "alternative.h"
-#include "malloc.h"
-#include "domain.h"
-#include "utf8.h"
-
-static void drop_incomplete_utf8(char *c) {
- char *e;
-
- e = strchr(c, 0) - 1;
-
- while (e >= c) {
-
- if (avahi_utf8_valid(c))
- break;
-
- assert(*e & 128);
- *e = 0;
-
- e--;
- }
-}
-
-char *avahi_alternative_host_name(const char *s) {
- const char *e;
- char *r;
-
- assert(s);
-
- if (!avahi_is_valid_host_name(s))
- return NULL;
-
- if ((e = strrchr(s, '-'))) {
- const char *p;
-
- e++;
-
- for (p = e; *p; p++)
- if (!isdigit(*p)) {
- e = NULL;
- break;
- }
-
- if (e && (*e == '0' || *e == 0))
- e = NULL;
- }
-
- if (e) {
- char *c, *m;
- size_t l;
- int n;
-
- n = atoi(e)+1;
- if (!(m = avahi_strdup_printf("%i", n)))
- return NULL;
-
- l = e-s-1;
-
- if (l >= AVAHI_LABEL_MAX-1-strlen(m)-1)
- l = AVAHI_LABEL_MAX-1-strlen(m)-1;
-
- if (!(c = avahi_strndup(s, l))) {
- avahi_free(m);
- return NULL;
- }
-
- drop_incomplete_utf8(c);
-
- r = avahi_strdup_printf("%s-%s", c, m);
- avahi_free(c);
- avahi_free(m);
-
- } else {
- char *c;
-
- if (!(c = avahi_strndup(s, AVAHI_LABEL_MAX-1-2)))
- return NULL;
-
- drop_incomplete_utf8(c);
-
- r = avahi_strdup_printf("%s-2", c);
- avahi_free(c);
- }
-
- assert(avahi_is_valid_host_name(r));
-
- return r;
-}
-
-char *avahi_alternative_service_name(const char *s) {
- const char *e;
- char *r;
-
- assert(s);
-
- if (!avahi_is_valid_service_name(s))
- return NULL;
-
- if ((e = strstr(s, " #"))) {
- const char *n, *p;
- e += 2;
-
- while ((n = strstr(e, " #")))
- e = n + 2;
-
- for (p = e; *p; p++)
- if (!isdigit(*p)) {
- e = NULL;
- break;
- }
-
- if (e && (*e == '0' || *e == 0))
- e = NULL;
- }
-
- if (e) {
- char *c, *m;
- size_t l;
- int n;
-
- n = atoi(e)+1;
- if (!(m = avahi_strdup_printf("%i", n)))
- return NULL;
-
- l = e-s-2;
-
- if (l >= AVAHI_LABEL_MAX-1-strlen(m)-2)
- l = AVAHI_LABEL_MAX-1-strlen(m)-2;
-
- if (!(c = avahi_strndup(s, l))) {
- avahi_free(m);
- return NULL;
- }
-
- drop_incomplete_utf8(c);
-
- r = avahi_strdup_printf("%s #%s", c, m);
- avahi_free(c);
- avahi_free(m);
- } else {
- char *c;
-
- if (!(c = avahi_strndup(s, AVAHI_LABEL_MAX-1-3)))
- return NULL;
-
- drop_incomplete_utf8(c);
-
- r = avahi_strdup_printf("%s #2", c);
- avahi_free(c);
- }
-
- assert(avahi_is_valid_service_name(r));
-
- return r;
-}