Implement dummy DNS resolution

This is not by far complete DNS handling but demonstrates that name
resolution works by printing the IP address type (IPv4 or IPv6) for each
found IP address.

1 files changed, 9 insertions, 6 deletions

diff --git a/xmpp.c b/xmpp.c
index e1ab985..62fd142 100644
--- a/xmpp.c
+++ b/xmpp.c
@@ -5,13 +5,15 @@
 #include <string.h>
 #include <sys/types.h>
 #include <sys/socket.h>
+#include <netdb.h>
 
 
 /*
- * Get the domainpart of the Jabber ID (JID).
+ * Get the domainpart of the Jabber ID (JID)
+ *
  * See https://datatracker.ietf.org/doc/html/rfc7622#section-3.2 for details.
  */
-char *domainpart(char *jid)
+char *get_domainpart(char *jid)
 {
 	int start = 0;           // inclusive
 	int stop = strlen(jid);  // exclusive
@@ -78,10 +80,11 @@ void xmpp_connect(void)
 {
 	printf("net_init()\n");
 
-	char* user_str = getenv("LIMOX_USER");
-	char* pwd_str = getenv("LIMOX_PWD");
-	char *domain = domainpart(user_str);
-	printf("Trying to connect as '%s' with '%s'.\n", user_str, pwd_str);
+	char *jid = getenv("LIMOX_USER");
+	char *pwd = getenv("LIMOX_PWD");
+	printf("Trying to connect as '%s' with '%s'.\n", jid, pwd);
+
+	char *domain = get_domainpart(jid);
 	printf("Domainpart is '%s'.\n", domain);
 
 	get_addrinfo(domain);