+/*
+ * Set network address from string into dst. Supports both IP string and
+ * hostname.
+ */
+static int set_ip_address(const char *addr, int af, char *dst, size_t size)
+{
+ int ret;
+ unsigned char buf[sizeof(struct in6_addr)];
+ struct hostent *record;
+
+ assert(addr);
+ assert(dst);
+
+ memset(dst, 0, size);
+
+ /* Network protocol */
+ ret = inet_pton(af, addr, buf);
+ if (ret < 1) {
+ /* We consider the dst to be an hostname or an invalid IP char */
+ record = gethostbyname2(addr, af);
+ if (record == NULL) {
+ /* At this point, the IP or the hostname is bad */
+ ERR("URI parse bad hostname %s for af %d", addr, af);
+ goto error;
+ }
+
+ /* Translate IP to string */
+ (void) inet_ntop(af, record->h_addr_list[0], dst, size);
+ } else {
+ if (size > 0) {
+ strncpy(dst, addr, size);
+ dst[size - 1] = '\0';
+ }
+ }
+
+ DBG2("IP address resolved to %s", dst);
+
+ return 0;
+
+error:
+ return -1;
+}
+
+/*
+ * Build a string URL from a lttng_uri object.
+ */
+__attribute__((visibility("hidden")))
+int uri_to_str_url(struct lttng_uri *uri, char *dst, size_t size)
+{
+ int ipver, ret;
+ const char *addr;
+ char proto[4], port[7];
+
+ assert(uri);
+ assert(dst);
+
+ if (uri->dtype == LTTNG_DST_PATH) {
+ ipver = 0;
+ addr = uri->dst.path;
+ (void) snprintf(proto, sizeof(proto), "file");
+ (void) snprintf(port, sizeof(port), "%s", "");
+ } else {
+ ipver = (uri->dtype == LTTNG_DST_IPV4) ? 4 : 6;
+ addr = (ipver == 4) ? uri->dst.ipv4 : uri->dst.ipv6;
+ (void) snprintf(proto, sizeof(proto), "net%d", ipver);
+ (void) snprintf(port, sizeof(port), ":%d", uri->port);
+ }
+
+ ret = snprintf(dst, size, "%s://%s%s%s%s/%s", proto,
+ (ipver == 6) ? "[" : "", addr, (ipver == 6) ? "]" : "",
+ port, uri->subdir);
+ if (ret < 0) {
+ PERROR("snprintf uri to url");
+ }
+
+ return ret;
+}
+