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-rw-r--r--avahi-common/domain.c99
1 files changed, 97 insertions, 2 deletions
diff --git a/avahi-common/domain.c b/avahi-common/domain.c
index b72a898..f2e4395 100644
--- a/avahi-common/domain.c
+++ b/avahi-common/domain.c
@@ -293,7 +293,7 @@ int avahi_binary_domain_cmp(const char *a, const char *b) {
}
}
-int avahi_is_valid_service_type(const char *t) {
+int avahi_is_valid_service_type_generic(const char *t) {
assert(t);
if (strlen(t) >= AVAHI_DOMAIN_NAME_MAX || !*t)
@@ -313,6 +313,101 @@ int avahi_is_valid_service_type(const char *t) {
return 1;
}
+int avahi_is_valid_service_type_strict(const char *t) {
+ char label[AVAHI_LABEL_MAX];
+ assert(t);
+
+ if (strlen(t) >= AVAHI_DOMAIN_NAME_MAX || !*t)
+ return 0;
+
+ /* Application name */
+
+ if (!(avahi_unescape_label(&t, label, sizeof(label))))
+ return 0;
+
+ if (strlen(label) <= 2 || label[0] != '_')
+ return 0;
+
+ if (!*t)
+ return 0;
+
+ /* _tcp or _udp boilerplate */
+
+ if (!(avahi_unescape_label(&t, label, sizeof(label))))
+ return 0;
+
+ if (strcasecmp(label, "_tcp") && strcasecmp(label, "_udp"))
+ return 0;
+
+ if (*t)
+ return 0;
+
+ return 1;
+}
+
+const char *avahi_get_type_from_subtype(const char *t) {
+ char label[AVAHI_LABEL_MAX];
+ const char *ret;
+ assert(t);
+
+ if (strlen(t) >= AVAHI_DOMAIN_NAME_MAX || !*t)
+ return NULL;
+
+ /* Subtype name */
+
+ if (!(avahi_unescape_label(&t, label, sizeof(label))))
+ return NULL;
+
+ if (strlen(label) <= 2 || label[0] != '_')
+ return NULL;
+
+ if (!*t)
+ return NULL;
+
+ /* String "_sub" */
+
+ if (!(avahi_unescape_label(&t, label, sizeof(label))))
+ return NULL;
+
+ if (strcasecmp(label, "_sub"))
+ return NULL;
+
+ if (!*t)
+ return NULL;
+
+ ret = t;
+
+ /* Application name */
+
+ if (!(avahi_unescape_label(&t, label, sizeof(label))))
+ return NULL;
+
+ if (strlen(label) <= 2 || label[0] != '_')
+ return NULL;
+
+ if (!*t)
+ return NULL;
+
+ /* _tcp or _udp boilerplate */
+
+ if (!(avahi_unescape_label(&t, label, sizeof(label))))
+ return NULL;
+
+ if (strcasecmp(label, "_tcp") && strcasecmp(label, "_udp"))
+ return NULL;
+
+ if (*t)
+ return NULL;
+
+ return ret;
+}
+
+int avahi_is_valid_service_subtype(const char *t) {
+ assert(t);
+
+ return !!avahi_get_type_from_subtype(t);
+}
+
int avahi_is_valid_domain_name(const char *t) {
assert(t);
@@ -407,7 +502,7 @@ int avahi_service_name_join(char *p, size_t size, const char *name, const char *
if ((name && !avahi_is_valid_service_name(name)))
return AVAHI_ERR_INVALID_SERVICE_NAME;
- if (!avahi_is_valid_service_type(type))
+ if (!avahi_is_valid_service_type_generic(type))
return AVAHI_ERR_INVALID_SERVICE_TYPE;
if (!avahi_is_valid_domain_name(domain))