Added tox_shell to testing.

tox_shell is a basic secure shell that can be used to control a
computer from any Tox client.

Just run tox_shell and make it add your Tox id.

It's very basic but it works.

testing/Makefile.inc

@@ -83,12 +83,28 @@ tox_sync_CFLAGS =       $(LIBSODIUM_CFLAGS) \
                         $(NACL_CFLAGS)
 
 tox_sync_LDADD =        $(LIBSODIUM_LDFLAGS) \
+                        $(NACL_LDFLAGS) \
+                        libtoxcore.la \
+                        $(LIBSODIUM_LIBS) \
+                        $(NACL_OBJECTS) \
+                        $(NACL_LIBS)
+
+
+noinst_PROGRAMS +=      tox_shell
+
+tox_shell_SOURCES =      ../testing/tox_shell.c
+
+tox_shell_CFLAGS =       $(LIBSODIUM_CFLAGS) \
+                        $(NACL_CFLAGS)
+
+tox_shell_LDADD =        $(LIBSODIUM_LDFLAGS) \
                         $(NACL_LDFLAGS) \
                         libtoxcore.la \
                         $(LIBSODIUM_LIBS) \
                         $(NACL_OBJECTS) \
                         $(NACL_LIBS) \
-                        $(WINSOCK2_LIBS)
+                        -lutil
+
 endif
 
 EXTRA_DIST += 			$(top_srcdir)/testing/misc_tools.c

testing/tox_shell.c

@@ -0,0 +1,153 @@
+/* Tox Shell
+ *
+ * Proof of concept ssh like server software using tox.
+ *
+ * Command line arguments are the ip, port and public_key of a node (for bootstrapping).
+ *
+ * EX: ./test 127.0.0.1 33445 CDCFD319CE3460824B33BE58FD86B8941C9585181D8FBD7C79C5721D7C2E9F7C
+ *
+ *
+ *  Copyright (C) 2014 Tox project All Rights Reserved.
+ *
+ *  This file is part of Tox.
+ *
+ *  Tox is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Tox is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with Tox.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "../toxcore/tox.h"
+#include "misc_tools.c"
+
+#include <pty.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#define c_sleep(x) usleep(1000*x)
+
+void print_online(Tox *tox, int friendnumber, uint8_t status, void *userdata)
+{
+    if (status == 1)
+        printf("\nOther went online.\n");
+    else
+        printf("\nOther went offline.\n");
+}
+
+void print_message(Tox *tox, int friendnumber, const uint8_t *string, uint16_t length, void *userdata)
+{
+    int master = *((int *)userdata);
+    write(master, string, length);
+    write(master, "\n", 1);
+}
+
+int main(int argc, char *argv[])
+{
+    uint8_t ipv6enabled = TOX_ENABLE_IPV6_DEFAULT; /* x */
+    int argvoffset = cmdline_parsefor_ipv46(argc, argv, &ipv6enabled);
+
+    if (argvoffset < 0)
+        exit(1);
+
+    /* with optional --ipvx, now it can be 1-4 arguments... */
+    if ((argc != argvoffset + 2) && (argc != argvoffset + 4)) {
+        printf("Usage: %s [--ipv4|--ipv6] ip port public_key (of the DHT bootstrap node)\n", argv[0]);
+        exit(0);
+    }
+
+    int *master = malloc(sizeof(int));
+    int ret = forkpty(master, NULL, NULL, NULL);
+
+    if (ret == -1) {
+        printf("fork failed\n");
+        return 1;
+    }
+
+    if (ret == 0) {
+        execl("/bin/sh", "sh", NULL);
+        return 0;
+    }
+
+    int flags = fcntl(*master, F_GETFL, 0);
+    int r = fcntl(*master, F_SETFL, flags | O_NONBLOCK);
+
+    if (r < 0) {
+        printf("error setting flags\n");
+    }
+
+    Tox *tox = tox_new(0);
+    tox_callback_connection_status(tox, print_online, NULL);
+    tox_callback_friend_message(tox, print_message, master);
+
+
+    uint16_t port = atoi(argv[argvoffset + 2]);
+    unsigned char *binary_string = hex_string_to_bin(argv[argvoffset + 3]);
+    int res = tox_bootstrap_from_address(tox, argv[argvoffset + 1], port, binary_string);
+    free(binary_string);
+
+    if (!res) {
+        printf("Failed to convert \"%s\" into an IP address. Exiting...\n", argv[argvoffset + 1]);
+        exit(1);
+    }
+
+    uint8_t address[TOX_FRIEND_ADDRESS_SIZE];
+    tox_get_address(tox, address);
+    uint32_t i;
+
+    for (i = 0; i < TOX_FRIEND_ADDRESS_SIZE; i++) {
+        printf("%02X", address[i]);
+    }
+
+    char temp_id[128];
+    printf("\nEnter the address of the other id you want to sync with (38 bytes HEX format):\n");
+
+    if (scanf("%s", temp_id) != 1) {
+        return 1;
+    }
+
+    uint8_t *bin_id = hex_string_to_bin(temp_id);
+    int num = tox_add_friend(tox, bin_id, (uint8_t *)"Install Gentoo", sizeof("Install Gentoo"));
+    free(bin_id);
+
+    if (num < 0) {
+        printf("\nSomething went wrong when adding friend.\n");
+        return 1;
+    }
+
+    uint8_t notconnected = 1;
+
+    while (1) {
+        if (tox_isconnected(tox) && notconnected) {
+            printf("\nDHT connected.\n");
+            notconnected = 0;
+        }
+
+        while (tox_get_friend_connection_status(tox, num) == 1) {
+            uint8_t buf[TOX_MAX_MESSAGE_LENGTH];
+            ret = read(*master, buf, sizeof(buf));
+
+            if (ret <= 0)
+                break;
+
+            tox_send_message(tox, num, buf, ret);
+        }
+
+        tox_do(tox);
+        c_sleep(1);
+    }
+
+    return 0;
+}