From 8455dc9801730e599510c92cdb3e05da351aa7a5 Mon Sep 17 00:00:00 2001
From: Linus Nordberg <linus@nordu.net>
Date: Fri, 3 Sep 2010 00:58:55 +0200
Subject: Low level connect and read working, kind of.  At least TCP.

Next: serializing.
---
 lib/base.c | 113 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 113 insertions(+)
 create mode 100644 lib/base.c

(limited to 'lib/base.c')

diff --git a/lib/base.c b/lib/base.c
new file mode 100644
index 0000000..38086c0
--- /dev/null
+++ b/lib/base.c
@@ -0,0 +1,113 @@
+#include <sys/socket.h>
+#include <errno.h>
+#include <stdlib.h>
+#include "libradsec-base.h"
+
+static int
+do_connect(int type,
+	   const struct sockaddr *addr,
+	   socklen_t addrlen)
+{
+  int s;
+
+  s = socket(AF_INET, type, 0); /* FIXME: do AF_INET6 too */
+  if (s >= 0)
+      if (connect(s, addr, addrlen)) {
+	  close(s);
+	  s = -1;
+      }
+  return s;
+}
+
+int
+rs_connect(const struct rs_config *conf,
+	   const struct sockaddr *addr,
+	   socklen_t addrlen)
+{
+    switch (conf->conn_type)
+    {
+    case RS_CONN_TYPE_UDP:
+	return do_connect(SOCK_DGRAM, addr, addrlen);
+    case RS_CONN_TYPE_TCP:
+	return do_connect(SOCK_STREAM, addr, addrlen);
+	/* fall thru */
+    case RS_CONN_TYPE_TLS:
+	/* fall thru */
+    case RS_CONN_TYPE_DTLS:
+	/* fall thru */
+    default:
+	errno = ENOSYS;
+	return -1;
+    }
+}
+
+int
+rs_disconnect( const struct rs_config *conf, int fd)
+{
+    switch (conf->conn_type)
+    {
+    case RS_CONN_TYPE_UDP:
+	return close(fd);
+    case RS_CONN_TYPE_TCP:
+	shutdown(fd, SHUT_RDWR);
+	return close(fd);
+    case RS_CONN_TYPE_TLS:
+	/* fall thru */
+    case RS_CONN_TYPE_DTLS:
+	/* fall thru */
+    default:
+	errno = ENOSYS;
+	return -1;
+    }
+}
+
+struct rs_packet *
+rs_packet_new(const struct rs_config *ctx,
+	      const uint8_t buf[RS_HEADER_LEN],
+	      size_t *count)
+{
+    struct rs_packet *p =
+	(ctx->alloc_scheme.malloc ? ctx->alloc_scheme.malloc : malloc)(20);
+    if (p) {
+	p->code = buf[0];
+	p->id = buf[1];
+	if (count)
+	    *count = 256 * buf[2] + buf[3];
+    }
+    return p;
+}
+
+struct rs_packet *
+rs_packet_parse(const struct rs_config *ctx,
+		struct rs_packet *packet,
+		const uint8_t *buf,
+		size_t buflen)
+{
+    if (buflen < 16) {
+	rs_packet_free(ctx, packet);
+	errno = EPROTO;
+	return NULL;
+    }
+    memcpy(packet->auth, buf, 16);
+    /* TODO: copy attributes starting at buf[16].  */
+    return packet;
+}
+
+void
+rs_packet_free(const struct rs_config *ctx,
+	       struct rs_packet *packet)
+{
+    (ctx->alloc_scheme.free ? ctx->alloc_scheme.free : free)(packet);
+}
+
+ssize_t
+rs_packet_serialize(const struct rs_packet *packet,
+		    uint8_t *buf,
+		    size_t buflen)
+{
+    fixme;
+}
+
+/* Local Variables: */
+/* c-file-style: "stroustrup" */
+/* End: */
-- 
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