--- old/usr/src/cmd/ssh/ssh-socks5-proxy-connect/ssh-socks5-proxy-connect.c	Tue Aug 16 19:27:16 2016
+++ /dev/null	Tue Aug 16 19:26:53 2016
@@ -1,382 +0,0 @@
-/*
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License (the "License").
- * You may not use this file except in compliance with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- *
- * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
- * Use is subject to license terms.
- */
-
-#pragma ident	"%Z%%M%	%I%	%E% SMI"
-
-/*
- * A SOCKS client that let's users 'ssh' to the
- * outside of the firewall by opening up a connection
- * through the SOCKS server. Supports only SOCKS v5.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <netdb.h>
-#include <strings.h>
-#include <unistd.h>
-#include <inttypes.h>
-#include <errno.h>
-#include <poll.h>
-#include <signal.h>
-#include <locale.h>
-#include <libintl.h>
-#include <netinet/in.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <arpa/inet.h>
-#include <sys/time.h>
-#include <sys/stropts.h>
-#include <sys/stat.h>
-#include <sys/varargs.h>
-#include "proxy-io.h"
-
-#define	DEFAULT_SOCKS5_PORT	"1080"
-
-static int debug_flag = 0;
-
-static void
-usage(void)
-{
-	(void) fprintf(stderr, gettext("Usage: ssh-socks5-proxy-connect "
-	    "[-h socks5_proxy_host] [-p socks5_proxy_port] \n"
-	    "remote_host remote_port\n"));
-	exit(1);
-}
-
-/* PRINTFLIKE1 */
-static void
-debug(const char *format, ...)
-{
-	char fmtbuf[BUFFER_SIZ];
-	va_list args;
-
-	if (debug_flag == 0) {
-	    return;
-	}
-	va_start(args, format);
-	(void) snprintf(fmtbuf, sizeof (fmtbuf),
-	    "ssh-socks5-proxy: %s\n", format);
-	(void) vfprintf(stderr, fmtbuf, args);
-	va_end(args);
-}
-
-static void
-signal_handler(int sig)
-{
-	exit(0);
-}
-
-static int
-do_version_exchange(int sockfd)
-{
-	char buffer[3], recv_buf[2];
-
-	buffer[0] = 0x05;			/* VER */
-	buffer[1] = 0x01;			/* NMETHODS */
-	buffer[2] = 0x00;			/* METHODS */
-
-	if (write(sockfd, &buffer, sizeof (buffer)) < 0) {
-	    perror("write");
-	    return (0);
-	}
-
-	if (read(sockfd, &recv_buf, sizeof (recv_buf)) == -1) {
-	    perror("read");
-	    return (0);
-	}
-
-	/*
-	 * No need to check the server's version as per
-	 * the protocol spec. Check the method supported
-	 * by the server. Currently if the server does not
-	 * support NO AUTH, we disconnect.
-	 */
-	if (recv_buf[1] != 0x00) {
-	    debug("Unsupported Authentication Method");
-	    return (0);
-	}
-
-	/* Return success. */
-	return (1);
-}
-
-static void
-send_request(
-    int sockfd,
-    const char *ssh_host,
-    uchar_t ssh_host_len,
-    uint16_t *ssh_port)
-{
-	int failure = 1;
-	char *buffer, *temp, recv_buf[BUFFER_SIZ];
-	uchar_t version = 0x05, cmd = 0x01, rsv = 0x00, atyp = 0x03;
-
-	buffer = malloc(strlen(ssh_host) + 7);
-
-	temp = buffer;
-
-	/* Assemble the request packet */
-	(void) memcpy(temp, &version, sizeof (version));
-	temp += sizeof (version);
-	(void) memcpy(temp, &cmd, sizeof (cmd));
-	temp += sizeof (cmd);
-	(void) memcpy(temp, &rsv, sizeof (rsv));
-	temp += sizeof (rsv);
-	(void) memcpy(temp, &atyp, sizeof (atyp));
-	temp += sizeof (atyp);
-	(void) memcpy(temp, &ssh_host_len, sizeof (ssh_host_len));
-	temp += sizeof (ssh_host_len);
-	(void) memcpy(temp, ssh_host, strlen(ssh_host));
-	temp += strlen(ssh_host);
-	(void) memcpy(temp, ssh_port, sizeof (*ssh_port));
-	temp += sizeof (*ssh_port);
-
-	if (write(sockfd, buffer, temp - buffer) == -1) {
-	    perror("write");
-	    exit(1);
-	}
-
-	/*
-	 * The maximum size of the protocol message we are waiting for is 10
-	 * bytes -- VER[1], REP[1], RSV[1], ATYP[1], BND.ADDR[4] and
-	 * BND.PORT[2]; see RFC 1928, section "6. Replies" for more details.
-	 * Everything else is already a part of the data we are supposed to
-	 * deliver to the requester. We know that BND.ADDR is exactly 4 bytes
-	 * since as you can see below, we accept only ATYP == 1 which specifies
-	 * that the IPv4 address is in a binary format.
-	 */
-	if (read(sockfd, &recv_buf, 10) == -1) {
-	    perror("read");
-	    exit(1);
-	}
-
-	/* temp now points to the recieve buffer. */
-	temp = recv_buf;
-
-	/* Check the server's version. */
-	if (*temp++ != 0x05) {
-	    (void) fprintf(stderr, gettext("Unsupported SOCKS version: %x\n"),
-		recv_buf[0]);
-	    exit(1);
-	}
-
-	/* Check server's reply */
-	switch (*temp++) {
-	    case 0x00:
-		failure = 0;
-		debug("CONNECT command Succeeded.");
-		break;
-	    case 0x01:
-		debug("General SOCKS server failure.");
-		break;
-	    case 0x02:
-		debug("Connection not allowed by ruleset.");
-		break;
-	    case 0x03:
-		debug("Network Unreachable.");
-		break;
-	    case 0x04:
-		debug("Host unreachable.");
-		break;
-	    case 0x05:
-		debug("Connection refused.");
-		break;
-	    case 0x06:
-		debug("TTL expired.");
-		break;
-	    case 0x07:
-		debug("Command not supported");
-		break;
-	    case 0x08:
-		debug("Address type not supported.");
-		break;
-	    default:
-		(void) fprintf(stderr, gettext("ssh-socks5-proxy: "
-		    "SOCKS Server reply not understood\n"));
-	}
-
-	if (failure == 1) {
-	    exit(1);
-	}
-
-	/* Parse the rest of the packet */
-
-	/* Ignore RSV */
-	temp++;
-
-	/* Check ATYP */
-	if (*temp != 0x01) {
-	    (void) fprintf(stderr, gettext("ssh-socks5-proxy: "
-		"Address type not supported: %u\n"), *temp);
-	    exit(1);
-	}
-
-	free(buffer);
-}
-
-int
-main(int argc, char **argv)
-{
-	extern char 	*optarg;
-	extern int	optind;
-	int 		retval, err_code, sock;
-	uint16_t 	ssh_port;
-	uchar_t 	ssh_host_len;
-	char 		*socks_server = NULL, *socks_port = NULL;
-	char 		*ssh_host;
-	struct 		addrinfo hints, *ai;
-	struct 		pollfd fds[2];
-
-	/* Initialization for variables, set locale and textdomain */
-
-	(void) setlocale(LC_ALL, "");
-
-#if !defined(TEXT_DOMAIN)	/* Should be defined by cc -D */
-#define	TEXT_DOMAIN "SYS_TEST"  /* Use this only if it weren't */
-#endif
-	(void) textdomain(TEXT_DOMAIN);
-
-	/* Set up the signal handler */
-	(void) signal(SIGINT, signal_handler);
-	(void) signal(SIGPIPE, signal_handler);
-	(void) signal(SIGPOLL, signal_handler);
-
-	while ((retval = getopt(argc, argv, "dp:h:")) != -1) {
-	    switch (retval) {
-		case 'h':
-		    socks_server = optarg;
-		    break;
-		case 'p':
-		    socks_port = optarg;
-		    break;
-		case 'd':
-		    debug_flag = 1;
-		    break;
-		default:
-		    break;
-	    }
-	}
-
-	if (optind != argc - 2) {
-		usage();
-	}
-
-	ssh_host = argv[optind++];
-	ssh_host_len = (uchar_t)strlen(ssh_host);
-	ssh_port = htons(atoi(argv[optind]));
-
-	/*
-	 * If the name and/or port number of the
-	 * socks server were not passed on the
-	 * command line, try the user's environment.
-	 */
-	if (socks_server == NULL) {
-	    if ((socks_server = getenv("SOCKS5_SERVER")) == NULL) {
-		(void) fprintf(stderr, gettext("ssh-socks5-proxy: "
-		    "SOCKS5 SERVER not specified\n"));
-		exit(1);
-	    }
-	}
-	if (socks_port == NULL) {
-	    if ((socks_port = getenv("SOCKS5_PORT")) == NULL) {
-		socks_port = DEFAULT_SOCKS5_PORT;
-	    }
-	}
-
-	debug("SOCKS5_SERVER = %s", socks_server);
-	debug("SOCKS5_PORT = %s", socks_port);
-
-	bzero(&hints, sizeof (struct addrinfo));
-	hints.ai_family = PF_UNSPEC;
-	hints.ai_socktype = SOCK_STREAM;
-
-	if ((err_code = getaddrinfo(socks_server, socks_port, &hints, &ai))
-	    != 0) {
-	    (void) fprintf(stderr, "%s: %s\n", socks_server,
-		gai_strerror(err_code));
-	    exit(1);
-	}
-
-	if ((sock = socket(ai->ai_family, SOCK_STREAM, 0)) < 0) {
-	    perror("socket");
-	    exit(1);
-	}
-
-	/* Connect to the SOCKS server */
-	if (connect(sock, ai->ai_addr, ai->ai_addrlen) == 0) {
-	    debug("Connected to the SOCKS server");
-	    /* Do the SOCKS v5 communication with the server. */
-	    if (do_version_exchange(sock) > 0) {
-		debug("Done version exchange");
-		send_request(sock, ssh_host, ssh_host_len, &ssh_port);
-	    } else {
-		(void) fprintf(stderr, gettext("ssh-socks5-proxy: Client and "
-		    "Server versions differ.\n"));
-		(void) close(sock);
-		exit(1);
-	    }
-	} else {
-	    perror("connect");
-	    (void) close(sock);
-	    exit(1);
-	}
-
-	fds[0].fd = STDIN_FILENO; 	/* Poll stdin for data. */
-	fds[1].fd = sock; 		/* Poll the socket for data. */
-	fds[0].events = fds[1].events = POLLIN;
-
-	for (;;) {
-	    if (poll(fds, 2, INFTIM) == -1) {
-		perror("poll");
-		(void) close(sock);
-		exit(1);
-	    }
-
-	    /* Data arrived on stdin, write it to the socket */
-	    if (fds[0].revents & POLLIN) {
-		if (proxy_read_write_loop(STDIN_FILENO, sock) == 0) {
-			(void) close(sock);
-			exit(1);
-		}
-	    } else if (fds[0].revents & (POLLERR | POLLHUP | POLLNVAL)) {
-		(void) close(sock);
-		exit(1);
-	    }
-
-	    /* Data arrived on the socket, write it to stdout */
-	    if (fds[1].revents & POLLIN) {
-		if (proxy_read_write_loop(sock, STDOUT_FILENO) == 0) {
-			(void) close(sock);
-			exit(1);
-		}
-	    } else if (fds[1].revents & (POLLERR | POLLHUP | POLLNVAL)) {
-		(void) close(sock);
-		exit(1);
-	    }
-	}
-
-	/* NOTREACHED */
-	return (0);
-}
