Add pnet tests

tests/test_pnet/Makefile

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+####
+#### Sample Makefile for building apps with the RIOT OS
+####
+#### The Sample Filesystem Layout is:
+#### /this makefile
+#### ../../RIOT 
+#### ../../boards   for board definitions (if you have one or more)
+#### 
+
+# name of your project
+export PROJECT =test_pnet
+
+# for easy switching of boards
+ifeq ($(strip $(BOARD)),)
+	export BOARD = native
+endif
+
+# this has to be the absolute path of the RIOT-base dir
+export RIOTBASE =$(CURDIR)/../..
+export RIOTBOARD =$(RIOTBASE)/boards
+
+ifeq ($(BOARD),stm32f4discovery)
+	include Makefile.$(BOARD)
+endif
+
+## Modules to include. 
+
+USEMODULE += auto_init
+USEMODULE += posix
+USEMODULE += pnet
+USEMODULE += vtimer
+ifeq ($(strip $(BOARD)),native)
+	USEMODULE += nativenet
+else ifeq ($(strip $(BOARD)),msba2)
+	USEMODULE += cc110x_ng
+endif
+
+ifeq ($(BOARD),native)
+	CFLAGS += -isystem $(RIOTBASE)/sys/net/include \
+			  -isystem $(RIOTBASE)/sys/posix/pnet/include
+else
+	export INCLUDES += -I$(RIOTBASE)/sys/net/include \
+					   -I$(RIOTBASE)/sys/posix/pnet/include \
+					   -I$(RIOTBASE)/sys/posix/include
+endif
+
+ifeq ($(BOARD),msba2)
+	export INCLUDES += -I$(RIOTBASE)/drivers/cc110x_ng/include \
+					   -I$(RIOTBASE)/boards/msba2-common/include
+endif
+
+include $(RIOTBASE)/Makefile.include

tests/test_pnet/main.c

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+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <unistd.h>
+
+#include "transceiver.h"
+#include "ipv6.h"
+
+#ifdef MODULE_NATIVENET
+#define TRANSCEIVER TRANSCEIVER_NATIVE
+#else
+#define TRANSCEIVER TRANSCEIVER_CC1100
+#endif
+
+#ifndef R_ADDR
+#define R_ADDR  (1)
+#endif
+
+#define PORT    (1234)
+
+void init_local_address(uint16_t r_addr) {
+    ipv6_addr_t std_addr;
+    ipv6_addr_init(&std_addr, 0xabcd, 0xef12, 0, 0, 0x1034, 0x00ff, 0xfe00, 
+                   r_addr);
+    sixlowpan_lowpan_adhoc_init(TRANSCEIVER, &std_addr, r_addr);
+}
+
+int main(void) {
+    int sockfd, res;
+    struct sockaddr_in6 my_addr, their_addr = {
+        .sin6_family = AF_INET6,
+#if R_ADDR == 1
+        .sin6_port = PORT,
+#else
+        .sin6_port = 0,
+#endif
+        .sin6_flowinfo = 0,
+#if R_ADDR == 1
+        .sin6_addr = {{{0xab, 0xcd, 0xef, 0x12, 0x00, 0x00, 0x00, 0x00, 
+                        0x10, 0x34, 0x00, 0xff, 0xfe, 0x00, 0x00, 0x02}}},
+#else
+        .sin6_addr = {{{0xab, 0xcd, 0xef, 0x12, 0x00, 0x00, 0x00, 0x00, 
+                        0x10, 0x34, 0x00, 0xff, 0xfe, 0x00, 0x00, 0x01}}},
+#endif
+        .sin6_scope_id = 0,
+    };
+    char buffer[14];
+
+    init_local_address(R_ADDR);
+
+    memcpy(buffer, "Hello, World!", 14);
+    memcpy(&my_addr, &in6addr_any, sizeof (my_addr));
+
+    my_addr.sin6_port = PORT;
+
+    sockfd = socket(AF_INET6, SOCK_DGRAM, 0);
+    res = bind(sockfd, (struct sockaddr *)&my_addr, sizeof (my_addr));
+    if (res < 0) {
+        perror("Socket could not be bind");
+        return 1;
+    }
+
+#if R_ADDR == 1
+    res = sendto(sockfd, buffer, strlen(buffer), 0, 
+                (struct sockaddr *)&their_addr, 
+                (socklen_t) sizeof (their_addr));
+#else
+    socklen_t their_len;
+    res = recvfrom(sockfd, buffer, strlen(buffer), 0, 
+                (struct sockaddr *)&their_addr, 
+                &their_len);
+    if (their_addr.sin6_addr.uint8[15] != 1) {
+        fprintf(stderr, "Wrong sender address: %d\n", their_addr.sin6_addr.uint8[11]);
+        return 1;
+    }
+    printf("Port: %d\n", their_addr.sin6_port);
+#endif
+    if (res < 0) {
+        perror("Message error");
+        return 1;
+    }
+
+    close(sockfd);
+    printf("All tests successful.\n");
+    return 0;
+}