1 files changed, 107 insertions, 0 deletions
diff --git a/ipv6-connect.c b/ipv6-connect.c
new file mode 100644
index 00000000..2da1edb7
--- /dev/null
+++ b/ipv6-connect.c
@@ -0,0 +1,107 @@
+/*
+%%% copyright-cmetz-97
+This software is Copyright 1997-1998 by Craig Metz, All Rights Reserved.
+The Inner Net License Version 2 applies to this software.
+You should have received a copy of the license with this software. If
+you didn't get a copy, you may request one from <license@inner.net>.
+
+*/
+
+
+#include "config.h"
+#ifdef INET6_ENABLE
+#include <sys/types.h>
+#include <stdio.h>
+#ifdef HAVE_NET_SOCKET_H
+#include <net/socket.h>
+#else
+#include <sys/socket.h>
+#endif
+#include <netinet/in.h>
+#include <errno.h>
+#include <netdb.h>
+#include <signal.h>
+
+/* This patch, supplying SA_LEN if it's undefined, is from Red Hat */
+#ifndef SA_LEN
+#define SA_LEN(sa)	sa_len(sa)
+
+static size_t sa_len(struct sockaddr *sa)
+{
+	switch(sa->sa_family) {
+#if defined(AF_INET)
+		case AF_INET:
+			return sizeof(struct sockaddr_in);
+#endif
+#if defined(AF_INET6) && defined(INET6_ENABLE)
+		case AF_INET6:
+			return sizeof(struct sockaddr_in6);
+#endif
+		default:
+			return sizeof(struct sockaddr);
+	}
+}
+#endif /* SA_LEN */
+
+static int default_trying_callback(struct sockaddr *sa)
+{
+  char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV];
+
+  if (getnameinfo(sa, SA_LEN(sa), hbuf, sizeof(hbuf), sbuf, sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV)) {
+    fprintf(stderr, "inner_getstream: getnameinfo failed\n");
+    return -1;
+  };
+
+  fprintf(stderr, "Trying %s.%s...\n", hbuf, sbuf);
+  return 0;
+};
+
+static int default_error_callback(char *myname, char *message)
+{
+  fprintf(stderr, "%s: %s\n", myname, message);
+  return 0;
+};
+
+int inner_connect(struct addrinfo *ai, void *request, int requestlen, int (*trying_callback)(struct sockaddr *sa), int (*error_callback)(char *myname, char *message), char *myname, struct addrinfo **pai)
+{
+  int fd;
+  char errorbuf[128];
+
+  if (!trying_callback)
+    trying_callback = default_trying_callback;
+
+  if (!error_callback)
+    error_callback = default_error_callback;
+
+  for (; ai; ai = ai->ai_next) {
+    if (trying_callback(ai->ai_addr))
+      continue;
+
+    if ((fd = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol)) < 0) {
+      snprintf(errorbuf, sizeof(errorbuf), "socket: %s(%d)", strerror(errno), errno);
+      error_callback(myname, errorbuf);
+      continue;
+    };
+
+    if (connect(fd, ai->ai_addr, ai->ai_addrlen) < 0) {
+      snprintf(errorbuf, sizeof(errorbuf), "connect: %s(%d)", strerror(errno), errno);
+      error_callback(myname, errorbuf);
+      close(fd);	/* just after a connect; no reads or writes yet */
+      continue;
+    }
+    break;
+  };
+
+  if (ai) {
+    if (pai)
+      *pai = ai;
+  } else {
+    snprintf(errorbuf, sizeof(errorbuf), "no connections result");
+    error_callback(myname, errorbuf);
+    fd = -1;
+  };
+
+  return fd;
+};
+
+#endif /* INET6_ENABLE */