1 files changed, 58 insertions, 0 deletions
diff --git a/socket_info.c b/socket_info.c
new file mode 100644
index 0000000..e644798
--- /dev/null
+++ b/socket_info.c
@@ -0,0 +1,58 @@
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include "byte.h"
+#include "socket_if.h"
+#include "ip.h"
+
+/**
+	@file socket_info.c
+	@author djb, fefe, feh
+	@source ucspi-tcp6
+	@brief querying local and remote info for socket
+*/
+
+int socket_local(int s,char ip[16],uint16 *port,uint32 *scope_id)
+{
+  struct sockaddr_in6 sa;
+  unsigned int dummy = sizeof(sa);
+
+  if (getsockname(s,(struct sockaddr *)&sa,&dummy) == -1) return -1;
+  
+  if (sa.sin6_family == AF_INET) {
+    struct sockaddr_in *sa4 = (struct sockaddr_in*)&sa;
+    byte_copy(ip,12,V4mappedprefix);
+    byte_copy(ip+12,4,(char *)&sa4->sin_addr);
+    uint16_unpack_big((char *)&sa4->sin_port,port);
+    if (scope_id) *scope_id = 0;
+  } else {
+    byte_copy(ip,16,(char *)&sa.sin6_addr);
+    uint16_unpack_big((char *)&sa.sin6_port,port);
+    if (scope_id) *scope_id = sa.sin6_scope_id;
+  }
+
+  return 0;
+}
+
+int socket_remote(int s,char ip[16],uint16 *port,uint32 *scope_id)
+{
+  struct sockaddr_in6 sa;
+  unsigned int dummy = sizeof(sa);
+
+  if (getpeername(s,(struct sockaddr *)&sa,&dummy) == -1) return -1;
+
+  if (sa.sin6_family == AF_INET) {
+    struct sockaddr_in *sa4 = (struct sockaddr_in*)&sa;
+    byte_copy(ip,12,V4mappedprefix);
+    byte_copy(ip+12,4,(char *)&sa4->sin_addr);
+    uint16_unpack_big((char *)&sa4->sin_port,port);
+    *scope_id = 0;
+  } else {
+    byte_copy(ip,16,(char *)&sa.sin6_addr);
+    uint16_unpack_big((char *)&sa.sin6_port,port);
+    *scope_id = sa.sin6_scope_id;
+  }
+
+  return 0;
+}