diff options
Diffstat (limited to 'usr/src/cmd/ssh/ssh-http-proxy-connect/ssh-http-proxy-connect.c')
-rw-r--r-- | usr/src/cmd/ssh/ssh-http-proxy-connect/ssh-http-proxy-connect.c | 284 |
1 files changed, 0 insertions, 284 deletions
diff --git a/usr/src/cmd/ssh/ssh-http-proxy-connect/ssh-http-proxy-connect.c b/usr/src/cmd/ssh/ssh-http-proxy-connect/ssh-http-proxy-connect.c deleted file mode 100644 index 33182730ae..0000000000 --- a/usr/src/cmd/ssh/ssh-http-proxy-connect/ssh-http-proxy-connect.c +++ /dev/null @@ -1,284 +0,0 @@ -/* - * CDDL HEADER START - * - * The contents of this file are subject to the terms of the - * Common Development and Distribution License, Version 1.0 only - * (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 2003 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. - */ - -#pragma ident "%Z%%M% %I% %E% SMI" - -/* - * An http client that let's users 'ssh' to the - * outside of the firewall by opening up a connection - * through the http proxy. - */ - -#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_HTTPPROXYPORT "80" -#define CONNECT_STRLEN 256 - -static int debug_flag = 0; - -static void -usage(void) -{ - (void) fprintf(stderr, gettext("Usage: ssh-http-proxy-connect " - "[-h http_proxy_host] [-p http_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-http-proxy: %s\n", format); - (void) vfprintf(stderr, fmtbuf, args); - va_end(args); -} - -static void -signal_handler(int sig) -{ - exit(0); -} - -int -main(int argc, char **argv) -{ - extern char *optarg; - extern int optind; - int retval, err_code, sock, ssh_port; - int version, ret_code; - char *httpproxy = NULL; - char *temp, *httpproxyport = NULL; - char *ssh_host; - char connect_str[CONNECT_STRLEN], connect_reply[BUFFER_SIZ]; - char *ret_string; - 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': - httpproxy = optarg; - break; - case 'p': - httpproxyport = optarg; - break; - case 'd': - debug_flag = 1; - break; - default: - break; - } - } - - if (optind != argc - 2) { - usage(); - } - - ssh_host = argv[optind++]; - ssh_port = atoi(argv[optind]); - - /* - * If the name of the http proxy were not - * passed on the command line, try the - * user's environment. First try HTTPPROXY. - * If it's not set, try http_proxy. - * Check the url specified for http_proxy - * for errors. - */ - if (httpproxy == NULL) { - if ((httpproxy = getenv("HTTPPROXY")) == NULL) { - /* Try the other environment variable http_proxy */ - if ((temp = getenv("http_proxy")) != NULL) { - temp += strlen("http://"); - if (strpbrk(temp, ":") == NULL) { - /* Malformed url */ - (void) fprintf(stderr, gettext("ssh-http-proxy: " - "Incorrect url specified for http_proxy " - "environment variable\n")); - exit(1); - } - httpproxy = strtok(temp, ":"); - httpproxyport = strtok(NULL, "/"); - } else { - (void) fprintf(stderr, - gettext("ssh-http-proxy: http proxy not specified\n")); - exit(1); - } - } - } - - /* - * Extract the proxy port number from the user's environment. - * Ignored if HTTPPROXY is not set. - */ - if ((httpproxy != NULL) && (httpproxyport == NULL)) { - if ((httpproxyport = getenv("HTTPPROXYPORT")) == NULL) { - httpproxyport = DEFAULT_HTTPPROXYPORT; - } - } - - debug("HTTPPROXY = %s", httpproxy); - debug("HTTPPROXYPORT = %s", httpproxyport); - - bzero(&hints, sizeof (struct addrinfo)); - hints.ai_family = PF_UNSPEC; - hints.ai_socktype = SOCK_STREAM; - - if ((err_code = getaddrinfo(httpproxy, httpproxyport, &hints, &ai)) - != 0) { - (void) fprintf(stderr, "ssh-http-proxy: Unable to " - "perform name lookup\n"); - (void) fprintf(stderr, "%s: %s\n", httpproxy, - gai_strerror(err_code)); - exit(1); - } - - if ((sock = socket(ai->ai_family, SOCK_STREAM, 0)) < 0) { - perror("socket"); - exit(1); - } - - /* Connect to the http proxy */ - if (connect(sock, ai->ai_addr, ai->ai_addrlen) == -1) { - (void) fprintf(stderr, gettext("ssh-http-proxy: Unable to connect" - " to %s: %s\n"), httpproxy, strerror(errno)); - (void) close(sock); - exit(1); - } else { - /* Successful connection. */ - (void) snprintf(connect_str, sizeof (connect_str), - "CONNECT %s:%d HTTP/1.1\r\n\r\n", ssh_host, ssh_port); - if (write(sock, &connect_str, strlen(connect_str)) < 0) { - perror("write"); - (void) close(sock); - exit(1); - } - - if (read(sock, connect_reply, sizeof (connect_reply)) == -1) { - perror("read"); - (void) close(sock); - exit(1); - } - - if (sscanf(connect_reply, "HTTP/1.%d %d", - &version, &ret_code) != 2) { - (void) fprintf(stderr, - gettext("ssh-http-proxy: HTTP reply not understood\n")); - (void) close(sock); - exit(1); - } - - ret_string = strtok(connect_reply, "\n"); - - /* If the return error code is not 200, print an error and quit. */ - if (ret_code != 200) { - (void) fprintf(stderr, "%s\n", ret_string); - (void) close(sock); - exit(1); - } else { - debug("%s", ret_string); - } - } - - 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); -} |