mirror of
https://github.com/sheumann/telnetd.git
synced 2024-05-28 02:48:35 +00:00
another tcp apps IPv6 updates.(should be make world safe)
ftp, telnet, ftpd, faithd also telnet related sync with crypto, secure, kerberosIV Obtained from: KAME project git-svn-id: http://svn0.us-east.freebsd.org/base/head/contrib/telnet@56668 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
This commit is contained in:
shin
parent
afe31edad1
commit
32ca7e751c
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@ -29,6 +29,8 @@
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef lint
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@ -83,6 +85,7 @@ static const char sccsid[] = "@(#)commands.c 8.4 (Berkeley) 5/30/95";
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# endif /* vax */
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#endif /* !defined(CRAY) && !defined(sysV88) */
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#include <netinet/ip.h>
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#include <netinet/ip6.h>
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#ifndef MAXHOSTNAMELEN
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@ -2270,27 +2273,76 @@ ayt_status()
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}
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#endif
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unsigned long inet_addr();
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static const char *
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sockaddr_ntop(sa)
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struct sockaddr *sa;
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{
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void *addr;
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static char addrbuf[INET6_ADDRSTRLEN];
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switch (sa->sa_family) {
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case AF_INET:
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addr = &((struct sockaddr_in *)sa)->sin_addr;
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break;
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#ifdef INET6
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case AF_INET6:
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addr = &((struct sockaddr_in6 *)sa)->sin6_addr;
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break;
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#endif
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default:
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return NULL;
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}
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inet_ntop(sa->sa_family, addr, addrbuf, sizeof(addrbuf));
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return addrbuf;
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}
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#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
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static int
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setpolicy(net, res, policy)
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int net;
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struct addrinfo *res;
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char *policy;
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{
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char *buf;
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int level;
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int optname;
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if (policy == NULL)
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return 0;
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buf = ipsec_set_policy(policy, strlen(policy));
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if (buf == NULL) {
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printf("%s\n", ipsec_strerror());
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return -1;
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}
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level = res->ai_family == AF_INET ? IPPROTO_IP : IPPROTO_IPV6;
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optname = res->ai_family == AF_INET ? IP_IPSEC_POLICY : IPV6_IPSEC_POLICY;
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if (setsockopt(net, level, optname, buf, ipsec_get_policylen(buf)) < 0){
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perror("setsockopt");
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return -1;
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}
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free(buf);
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}
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#endif
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int
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tn(argc, argv)
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int argc;
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char *argv[];
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{
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register struct hostent *host = 0;
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struct sockaddr_in sin, src_sin;
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struct servent *sp = 0;
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unsigned long temp;
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extern char *inet_ntoa();
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#if defined(IP_OPTIONS) && defined(IPPROTO_IP)
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struct sockaddr_storage ss, src_ss;
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char *srp = 0, *strrchr();
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unsigned long sourceroute(), srlen;
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#endif
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int proto, opt;
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int sourceroute(), srlen;
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int srcroute = 0, result;
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char *cmd, *hostp = 0, *portp = 0, *user = 0;
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char *src_addr = NULL;
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struct addrinfo hints, *res;
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int error = 0;
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/* clear the socket address prior to use */
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memset((char *)&sin, 0, sizeof(sin));
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memset((char *)&ss, 0, sizeof(ss));
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if (connected) {
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printf("?Already connected to %s\n", hostname);
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@ -2350,126 +2402,106 @@ tn(argc, argv)
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goto usage;
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if (src_addr != NULL) {
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bzero((char *)&src_sin, sizeof(src_sin));
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src_sin.sin_family = AF_INET;
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if (!inet_aton(src_addr, &src_sin.sin_addr)) {
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host = gethostbyname2(src_addr, AF_INET);
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if (host == NULL) {
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herror(src_addr);
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return 0;
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}
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if (host->h_length != sizeof(src_sin.sin_addr)) {
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fprintf(stderr, "telnet: gethostbyname2: invalid address\n");
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return 0;
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}
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memcpy((void *)&src_sin.sin_addr, (void *)host->h_addr_list[0],
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sizeof(src_sin.sin_addr));
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memset(&hints, 0, sizeof(hints));
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hints.ai_flags = AI_NUMERICHOST;
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hints.ai_family = family;
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hints.ai_socktype = SOCK_STREAM;
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error = getaddrinfo(src_addr, 0, &hints, &res);
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if (error == EAI_NONAME) {
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hints.ai_flags = 0;
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error = getaddrinfo(src_addr, 0, &hints, &res);
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}
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if (error != 0) {
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fprintf(stderr, "%s: %s\n", src_addr, gai_strerror(error));
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if (error == EAI_SYSTEM)
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fprintf(stderr, "%s: %s\n", src_addr, strerror(errno));
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return 0;
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}
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memcpy((void *)&src_ss, (void *)res->ai_addr, res->ai_addrlen);
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freeaddrinfo(res);
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}
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#if defined(IP_OPTIONS) && defined(IPPROTO_IP)
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if (hostp[0] == '@' || hostp[0] == '!') {
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if ((hostname = strrchr(hostp, ':')) == NULL)
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if (
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#ifdef INET6
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family == AF_INET6 ||
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#endif
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(hostname = strrchr(hostp, ':')) == NULL)
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hostname = strrchr(hostp, '@');
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hostname++;
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srp = 0;
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temp = sourceroute(hostp, &srp, &srlen);
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if (temp == 0) {
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herror(srp);
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srcroute = 1;
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} else
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hostname = hostp;
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if (!portp) {
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telnetport = 1;
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portp = "telnet";
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} else if (*portp == '-') {
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portp++;
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telnetport = 1;
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} else
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telnetport = 0;
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memset(&hints, 0, sizeof(hints));
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hints.ai_flags = AI_NUMERICHOST;
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hints.ai_family = family;
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hints.ai_socktype = SOCK_STREAM;
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error = getaddrinfo(hostname, portp, &hints, &res);
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if (error == 0) {
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int gni_err = 1;
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if (doaddrlookup)
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gni_err = getnameinfo(res->ai_addr, res->ai_addr->sa_len,
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_hostname, sizeof(_hostname) - 1, NULL, 0,
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0);
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if (gni_err != 0)
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(void) strncpy(_hostname, hostp, sizeof(_hostname) - 1);
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_hostname[sizeof(_hostname)-1] = '\0';
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hostname = _hostname;
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} else if (error == EAI_NONAME) {
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hints.ai_flags = AI_CANONNAME;
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error = getaddrinfo(hostname, portp, &hints, &res);
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if (error != 0) {
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fprintf(stderr, "%s: %s\n", hostname, gai_strerror(error));
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if (error == EAI_SYSTEM)
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fprintf(stderr, "%s: %s\n", hostname, strerror(errno));
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setuid(getuid());
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return 0;
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} else if (temp == -1) {
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}
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memcpy((void *)&ss, (void *)res->ai_addr, res->ai_addrlen);
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if (srcroute != 0)
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(void) strncpy(_hostname, hostname, sizeof(_hostname) - 1);
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else if (res->ai_canonname != NULL)
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strcpy(_hostname, res->ai_canonname);
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else
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(void) strncpy(_hostname, hostp, sizeof(_hostname) - 1);
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_hostname[sizeof(_hostname)-1] = '\0';
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hostname = _hostname;
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}
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if (srcroute != 0) {
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srp = 0;
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result = sourceroute(res, hostp, &srp, &srlen, &proto, &opt);
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if (result == 0) {
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setuid(getuid());
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freeaddrinfo(res);
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return 0;
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} else if (result == -1) {
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printf("Bad source route option: %s\n", hostp);
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setuid(getuid());
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freeaddrinfo(res);
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return 0;
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} else {
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sin.sin_addr.s_addr = temp;
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sin.sin_family = AF_INET;
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}
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} else {
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#endif
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temp = inet_addr(hostp);
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if (temp != INADDR_NONE) {
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sin.sin_addr.s_addr = temp;
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sin.sin_family = AF_INET;
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if (doaddrlookup)
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host = gethostbyaddr((char *)&temp, sizeof(temp), AF_INET);
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if (host)
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(void) strncpy(_hostname, host->h_name, sizeof(_hostname));
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else
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(void) strncpy(_hostname, hostp, sizeof(_hostname));
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_hostname[sizeof(_hostname)-1] = '\0';
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hostname = _hostname;
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} else {
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host = gethostbyname(hostp);
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if (host) {
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sin.sin_family = host->h_addrtype;
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#if defined(h_addr) /* In 4.3, this is a #define */
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memmove((caddr_t)&sin.sin_addr,
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host->h_addr_list[0], host->h_length);
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#else /* defined(h_addr) */
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memmove((caddr_t)&sin.sin_addr, host->h_addr, host->h_length);
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#endif /* defined(h_addr) */
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strncpy(_hostname, host->h_name, sizeof(_hostname));
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_hostname[sizeof(_hostname)-1] = '\0';
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hostname = _hostname;
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} else {
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herror(hostp);
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setuid(getuid());
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return 0;
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}
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}
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#if defined(IP_OPTIONS) && defined(IPPROTO_IP)
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}
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#endif
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if (portp) {
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if (*portp == '-') {
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portp++;
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telnetport = 1;
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} else
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telnetport = 0;
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sin.sin_port = atoi(portp);
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if (sin.sin_port == 0) {
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sp = getservbyname(portp, "tcp");
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if (sp)
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sin.sin_port = sp->s_port;
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else {
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printf("%s: bad port number\n", portp);
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setuid(getuid());
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return 0;
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}
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} else {
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#if !defined(htons)
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u_short htons P((unsigned short));
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#endif /* !defined(htons) */
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sin.sin_port = htons(sin.sin_port);
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}
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} else {
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if (sp == 0) {
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sp = getservbyname("telnet", "tcp");
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if (sp == 0) {
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fprintf(stderr, "telnet: tcp/telnet: unknown service\n");
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setuid(getuid());
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return 0;
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}
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sin.sin_port = sp->s_port;
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}
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telnetport = 1;
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}
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printf("Trying %s...\n", inet_ntoa(sin.sin_addr));
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printf("Trying %s...\n", sockaddr_ntop(res->ai_addr));
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do {
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net = socket(AF_INET, SOCK_STREAM, 0);
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net = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
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setuid(getuid());
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if (net < 0) {
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perror("telnet: socket");
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return 0;
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}
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#if defined(IP_OPTIONS) && defined(IPPROTO_IP)
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if (srp && setsockopt(net, IPPROTO_IP, IP_OPTIONS, (char *)srp, srlen) < 0)
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perror("setsockopt (IP_OPTIONS)");
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#endif
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if (srp && setsockopt(net, proto, opt, (char *)srp, srlen) < 0)
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perror("setsockopt (source route)");
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#if defined(IPPROTO_IP) && defined(IP_TOS)
|
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{
|
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if (res->ai_family == PF_INET) {
|
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# if defined(HAS_GETTOS)
|
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struct tosent *tp;
|
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if (tos < 0 && (tp = gettosbyname("telnet", "tcp")))
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|
|
@ -2490,28 +2522,31 @@ tn(argc, argv)
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}
|
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|
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if (src_addr != NULL) {
|
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if (bind(net, (struct sockaddr *)&src_sin, sizeof(src_sin)) == -1) {
|
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if (bind(net, (struct sockaddr *)&src_ss,
|
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((struct sockaddr *)&src_ss)->sa_len) == -1) {
|
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perror("bind");
|
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return 0;
|
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}
|
||||
}
|
||||
#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
|
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if (setpolicy(net, res, ipsec_policy_in) < 0)
|
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return 0;
|
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if (setpolicy(net, res, ipsec_policy_out) < 0)
|
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return 0;
|
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#endif
|
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|
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if (connect(net, (struct sockaddr *)&sin, sizeof (sin)) < 0) {
|
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#if defined(h_addr) /* In 4.3, this is a #define */
|
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if (host && host->h_addr_list[1]) {
|
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if (connect(net, res->ai_addr, res->ai_addrlen) < 0) {
|
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if (res->ai_next) {
|
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int oerrno = errno;
|
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|
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fprintf(stderr, "telnet: connect to address %s: ",
|
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inet_ntoa(sin.sin_addr));
|
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sockaddr_ntop(res->ai_addr));
|
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errno = oerrno;
|
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perror((char *)0);
|
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host->h_addr_list++;
|
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memmove((caddr_t)&sin.sin_addr,
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host->h_addr_list[0], host->h_length);
|
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res = res->ai_next;
|
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(void) NetClose(net);
|
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continue;
|
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}
|
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#endif /* defined(h_addr) */
|
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perror("telnet: Unable to connect to remote host");
|
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return 0;
|
||||
}
|
||||
|
|
@ -2520,6 +2555,7 @@ tn(argc, argv)
|
|||
auth_encrypt_connect(connected);
|
||||
#endif /* defined(AUTHENTICATION) || defined(ENCRYPTION) */
|
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} while (connected == 0);
|
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freeaddrinfo(res);
|
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cmdrc(hostp, hostname);
|
||||
if (autologin && user == NULL) {
|
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struct passwd *pw;
|
||||
|
|
@ -2861,8 +2897,6 @@ cmdrc(m1, m2)
|
|||
fclose(rcfile);
|
||||
}
|
||||
|
||||
#if defined(IP_OPTIONS) && defined(IPPROTO_IP)
|
||||
|
||||
/*
|
||||
* Source route is handed in as
|
||||
* [!]@hop1@hop2...[@|:]dst
|
||||
|
|
@ -2876,6 +2910,10 @@ cmdrc(m1, m2)
|
|||
* be the address to connect() to.
|
||||
*
|
||||
* Arguments:
|
||||
*
|
||||
* res: ponter to addrinfo structure which contains sockaddr to
|
||||
* the host to connect to.
|
||||
*
|
||||
* arg: pointer to route list to decipher
|
||||
*
|
||||
* cpp: If *cpp is not equal to NULL, this is a
|
||||
|
|
@ -2885,9 +2923,18 @@ cmdrc(m1, m2)
|
|||
* lenp: pointer to an integer that contains the
|
||||
* length of *cpp if *cpp != NULL.
|
||||
*
|
||||
* protop: pointer to an integer that should be filled in with
|
||||
* appropriate protocol for setsockopt, as socket
|
||||
* protocol family.
|
||||
*
|
||||
* optp: pointer to an integer that should be filled in with
|
||||
* appropriate option for setsockopt, as socket protocol
|
||||
* family.
|
||||
*
|
||||
* Return values:
|
||||
*
|
||||
* Returns the address of the host to connect to. If the
|
||||
* If the return value is 1, then all operations are
|
||||
* successful. If the
|
||||
* return value is -1, there was a syntax error in the
|
||||
* option, either unknown characters, or too many hosts.
|
||||
* If the return value is 0, one of the hostnames in the
|
||||
|
|
@ -2901,21 +2948,32 @@ cmdrc(m1, m2)
|
|||
* *lenp: This will be filled in with how long the option
|
||||
* pointed to by *cpp is.
|
||||
*
|
||||
* *protop: This will be filled in with appropriate protocol for
|
||||
* setsockopt, as socket protocol family.
|
||||
*
|
||||
* *optp: This will be filled in with appropriate option for
|
||||
* setsockopt, as socket protocol family.
|
||||
*/
|
||||
unsigned long
|
||||
sourceroute(arg, cpp, lenp)
|
||||
int
|
||||
sourceroute(ai, arg, cpp, lenp, protop, optp)
|
||||
struct addrinfo *ai;
|
||||
char *arg;
|
||||
char **cpp;
|
||||
int *lenp;
|
||||
int *protop;
|
||||
int *optp;
|
||||
{
|
||||
static char lsr[44];
|
||||
static char buf[1024]; /*XXX*/
|
||||
struct cmsghdr *cmsg;
|
||||
#ifdef sysV88
|
||||
static IOPTN ipopt;
|
||||
#endif
|
||||
char *cp, *cp2, *lsrp, *lsrep;
|
||||
char *cp, *cp2, *lsrp, *ep;
|
||||
register int tmp;
|
||||
struct in_addr sin_addr;
|
||||
register struct hostent *host = 0;
|
||||
struct sockaddr_in *sin;
|
||||
struct sockaddr_in6 *sin6;
|
||||
struct addrinfo hints, *res;
|
||||
int error;
|
||||
register char c;
|
||||
|
||||
/*
|
||||
|
|
@ -2924,22 +2982,46 @@ sourceroute(arg, cpp, lenp)
|
|||
*/
|
||||
if (cpp == NULL || lenp == NULL)
|
||||
return((unsigned long)-1);
|
||||
if (*cpp != NULL && *lenp < 7)
|
||||
return((unsigned long)-1);
|
||||
if (*cpp != NULL) {
|
||||
switch (res->ai_family) {
|
||||
case AF_INET:
|
||||
if (*lenp < 7)
|
||||
return((unsigned long)-1);
|
||||
break;
|
||||
#ifdef INET6
|
||||
case AF_INET6:
|
||||
if (*lenp < (sizeof(struct cmsghdr) +
|
||||
sizeof(struct ip6_rthdr) +
|
||||
sizeof(struct in6_addr)))
|
||||
return((unsigned long)-1);
|
||||
break;
|
||||
#endif
|
||||
}
|
||||
}
|
||||
/*
|
||||
* Decide whether we have a buffer passed to us,
|
||||
* or if we need to use our own static buffer.
|
||||
*/
|
||||
if (*cpp) {
|
||||
lsrp = *cpp;
|
||||
lsrep = lsrp + *lenp;
|
||||
ep = lsrp + *lenp;
|
||||
} else {
|
||||
*cpp = lsrp = lsr;
|
||||
lsrep = lsrp + 44;
|
||||
*cpp = lsrp = buf;
|
||||
ep = lsrp + 1024;
|
||||
}
|
||||
|
||||
cp = arg;
|
||||
|
||||
#ifdef INET6
|
||||
if (ai->ai_family == AF_INET6) {
|
||||
cmsg = inet6_rthdr_init(*cpp, IPV6_RTHDR_TYPE_0);
|
||||
if (*cp != '@')
|
||||
return -1;
|
||||
*protop = IPPROTO_IPV6;
|
||||
*optp = IPV6_PKTOPTIONS;
|
||||
} else
|
||||
#endif
|
||||
{
|
||||
/*
|
||||
* Next, decide whether we have a loose source
|
||||
* route or a strict source route, and fill in
|
||||
|
|
@ -2966,13 +3048,20 @@ sourceroute(arg, cpp, lenp)
|
|||
lsrp++; /* skip over length, we'll fill it in later */
|
||||
*lsrp++ = 4;
|
||||
#endif
|
||||
*protop = IPPROTO_IP;
|
||||
*optp = IP_OPTIONS;
|
||||
}
|
||||
|
||||
cp++;
|
||||
|
||||
sin_addr.s_addr = 0;
|
||||
|
||||
memset(&hints, 0, sizeof(hints));
|
||||
hints.ai_family = ai->ai_family;
|
||||
hints.ai_socktype = SOCK_STREAM;
|
||||
for (c = 0;;) {
|
||||
if (c == ':')
|
||||
if (
|
||||
#ifdef INET6
|
||||
ai->ai_family != AF_INET6 &&
|
||||
#endif
|
||||
c == ':')
|
||||
cp2 = 0;
|
||||
else for (cp2 = cp; (c = *cp2); cp2++) {
|
||||
if (c == ',') {
|
||||
|
|
@ -2981,7 +3070,11 @@ sourceroute(arg, cpp, lenp)
|
|||
cp2++;
|
||||
} else if (c == '@') {
|
||||
*cp2++ = '\0';
|
||||
} else if (c == ':') {
|
||||
} else if (
|
||||
#ifdef INET6
|
||||
ai->ai_family != AF_INET6 &&
|
||||
#endif
|
||||
c == ':') {
|
||||
*cp2++ = '\0';
|
||||
} else
|
||||
continue;
|
||||
|
|
@ -2990,21 +3083,32 @@ sourceroute(arg, cpp, lenp)
|
|||
if (!c)
|
||||
cp2 = 0;
|
||||
|
||||
if ((tmp = inet_addr(cp)) != -1) {
|
||||
sin_addr.s_addr = tmp;
|
||||
} else if ((host = gethostbyname(cp))) {
|
||||
#if defined(h_addr)
|
||||
memmove((caddr_t)&sin_addr,
|
||||
host->h_addr_list[0], host->h_length);
|
||||
#else
|
||||
memmove((caddr_t)&sin_addr, host->h_addr, host->h_length);
|
||||
#endif
|
||||
} else {
|
||||
hints.ai_flags = AI_NUMERICHOST;
|
||||
error = getaddrinfo(cp, NULL, &hints, &res);
|
||||
if (error == EAI_NONAME) {
|
||||
hints.ai_flags = 0;
|
||||
error = getaddrinfo(cp, NULL, &hints, &res);
|
||||
}
|
||||
if (error != 0) {
|
||||
fprintf(stderr, "%s: %s\n", cp, gai_strerror(error));
|
||||
if (error == EAI_SYSTEM)
|
||||
fprintf(stderr, "%s: %s\n", cp,
|
||||
strerror(errno));
|
||||
*cpp = cp;
|
||||
return(0);
|
||||
}
|
||||
memmove(lsrp, (char *)&sin_addr, 4);
|
||||
#ifdef INET6
|
||||
if (res->ai_family == AF_INET6) {
|
||||
sin6 = (struct sockaddr_in6 *)res->ai_addr;
|
||||
inet6_rthdr_add(cmsg, &sin6->sin6_addr,
|
||||
IPV6_RTHDR_LOOSE);
|
||||
} else
|
||||
#endif
|
||||
{
|
||||
sin = (struct sockaddr_in *)res->ai_addr;
|
||||
memcpy(lsrp, (char *)&sin->sin_addr, 4);
|
||||
lsrp += 4;
|
||||
}
|
||||
if (cp2)
|
||||
cp = cp2;
|
||||
else
|
||||
|
|
@ -3012,9 +3116,27 @@ sourceroute(arg, cpp, lenp)
|
|||
/*
|
||||
* Check to make sure there is space for next address
|
||||
*/
|
||||
if (lsrp + 4 > lsrep)
|
||||
#ifdef INET6
|
||||
if (res->ai_family == AF_INET6) {
|
||||
if (((char *)cmsg +
|
||||
sizeof(struct cmsghdr) +
|
||||
sizeof(struct ip6_rthdr) +
|
||||
((inet6_rthdr_segments(cmsg) + 1) *
|
||||
sizeof(struct in6_addr))) > ep)
|
||||
return((unsigned long)-1);
|
||||
} else
|
||||
#endif
|
||||
if (lsrp + 4 > ep)
|
||||
return((unsigned long)-1);
|
||||
freeaddrinfo(res);
|
||||
}
|
||||
#ifdef INET6
|
||||
if (res->ai_family == AF_INET6) {
|
||||
inet6_rthdr_lasthop(cmsg, IPV6_RTHDR_LOOSE);
|
||||
*lenp = cmsg->cmsg_len;
|
||||
} else
|
||||
#endif
|
||||
{
|
||||
#ifndef sysV88
|
||||
if ((*(*cpp+IPOPT_OLEN) = lsrp - *cpp) <= 7) {
|
||||
*cpp = 0;
|
||||
|
|
@ -3033,6 +3155,10 @@ sourceroute(arg, cpp, lenp)
|
|||
*lenp = sizeof(ipopt);
|
||||
*cpp = (char *) &ipopt;
|
||||
#endif
|
||||
return(sin_addr.s_addr);
|
||||
}
|
||||
freeaddrinfo(res);
|
||||
return 1;
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -31,6 +31,7 @@
|
|||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)externs.h 8.3 (Berkeley) 5/30/95
|
||||
* $FreeBSD$
|
||||
*/
|
||||
|
||||
#ifndef BSD
|
||||
|
|
@ -87,6 +88,14 @@ typedef unsigned char cc_t;
|
|||
#include <strings.h>
|
||||
#endif
|
||||
|
||||
#if defined(IPSEC)
|
||||
#include <netinet6/ipsec.h>
|
||||
#if defined(IPSEC_POLICY_IPSEC)
|
||||
extern char *ipsec_policy_in;
|
||||
extern char *ipsec_policy_out;
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifndef _POSIX_VDISABLE
|
||||
# ifdef sun
|
||||
# include <sys/param.h> /* pick up VDISABLE definition, mayby */
|
||||
|
|
@ -116,6 +125,7 @@ extern int
|
|||
autologin, /* Autologin enabled */
|
||||
skiprc, /* Don't process the ~/.telnetrc file */
|
||||
eight, /* use eight bit mode (binary in and/or out */
|
||||
family, /* address family of peer */
|
||||
flushout, /* flush output */
|
||||
connected, /* Are we connected to the other side? */
|
||||
globalmode, /* Mode tty should be in */
|
||||
|
|
|
|||
|
|
@ -29,6 +29,8 @@
|
|||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* $FreeBSD$
|
||||
*/
|
||||
|
||||
#ifndef lint
|
||||
|
|
@ -42,6 +44,7 @@ static const char sccsid[] = "@(#)main.c 8.3 (Berkeley) 5/30/95";
|
|||
#endif /* not lint */
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <sys/socket.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
#include "ring.h"
|
||||
|
|
@ -70,6 +73,13 @@ void init_telnet(void);
|
|||
void init_sys(void);
|
||||
void init_3270(void);
|
||||
|
||||
#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
|
||||
char *ipsec_policy_in = NULL;
|
||||
char *ipsec_policy_out = NULL;
|
||||
#endif
|
||||
|
||||
int family = AF_UNSPEC;
|
||||
|
||||
/*
|
||||
* Initialize variables.
|
||||
*/
|
||||
|
|
@ -95,10 +105,10 @@ usage()
|
|||
fprintf(stderr, "Usage: %s %s%s%s%s\n",
|
||||
prompt,
|
||||
#ifdef AUTHENTICATION
|
||||
"[-8] [-E] [-K] [-L] [-N] [-S tos] [-X atype] [-a] [-c] [-d]",
|
||||
"[-4] [-6] [-8] [-E] [-K] [-L] [-N] [-S tos] [-X atype] [-a] [-c] [-d]",
|
||||
"\n\t[-e char] [-k realm] [-l user] [-f/-F] [-n tracefile] ",
|
||||
#else
|
||||
"[-8] [-E] [-L] [-N] [-S tos] [-a] [-c] [-d] [-e char] [-l user]",
|
||||
"[-4] [-6] [-8] [-E] [-L] [-N] [-S tos] [-a] [-c] [-d] [-e char] [-l user]",
|
||||
"\n\t[-n tracefile] ",
|
||||
#endif
|
||||
#if defined(TN3270) && defined(unix)
|
||||
|
|
@ -112,6 +122,9 @@ usage()
|
|||
#else
|
||||
"[-r] [-s src_addr] ",
|
||||
#endif
|
||||
#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
|
||||
"[-P policy]"
|
||||
#endif
|
||||
#ifdef ENCRYPTION
|
||||
"[-x] [host-name [port]]"
|
||||
#else /* ENCRYPTION */
|
||||
|
|
@ -156,8 +169,24 @@ main(argc, argv)
|
|||
rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE;
|
||||
autologin = -1;
|
||||
|
||||
while ((ch = getopt(argc, argv, "8EKLNS:X:acde:fFk:l:n:rs:t:x")) != EOF) {
|
||||
#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
|
||||
#define IPSECOPT "P:"
|
||||
#else
|
||||
#define IPSECOPT
|
||||
#endif
|
||||
while ((ch = getopt(argc, argv,
|
||||
"468EKLNS:X:acde:fFk:l:n:rs:t:x" IPSECOPT)) != -1)
|
||||
#undef IPSECOPT
|
||||
{
|
||||
switch(ch) {
|
||||
case '4':
|
||||
family = AF_INET;
|
||||
break;
|
||||
#ifdef INET6
|
||||
case '6':
|
||||
family = AF_INET6;
|
||||
break;
|
||||
#endif
|
||||
case '8':
|
||||
eight = 3; /* binary output and input */
|
||||
break;
|
||||
|
|
@ -299,6 +328,16 @@ main(argc, argv)
|
|||
prompt);
|
||||
#endif /* ENCRYPTION */
|
||||
break;
|
||||
#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
|
||||
case 'P':
|
||||
if (!strncmp("in", optarg, 2))
|
||||
ipsec_policy_in = strdup(optarg);
|
||||
else if (!strncmp("out", optarg, 3))
|
||||
ipsec_policy_out = strdup(optarg);
|
||||
else
|
||||
usage();
|
||||
break;
|
||||
#endif
|
||||
case '?':
|
||||
default:
|
||||
usage();
|
||||
|
|
|
|||
|
|
@ -30,8 +30,9 @@
|
|||
.\" SUCH DAMAGE.
|
||||
.\"
|
||||
.\" @(#)telnet.1 8.6 (Berkeley) 6/1/94
|
||||
.\" $FreeBSD$
|
||||
.\"
|
||||
.Dd June 1, 1994
|
||||
.Dd January 27, 2000
|
||||
.Dt TELNET 1
|
||||
.Os BSD 4.2
|
||||
.Sh NAME
|
||||
|
|
@ -549,9 +550,10 @@ will attempt to contact a
|
|||
.Tn TELNET
|
||||
server at the default port.
|
||||
The host specification may be either a host name (see
|
||||
.Xr hosts 5 )
|
||||
or an Internet address specified in the \*(Lqdot notation\*(Rq (see
|
||||
.Xr inet 3 ) .
|
||||
.Xr hosts 5 ) ,
|
||||
an Internet address specified in the \*(Lqdot notation\*(Rq (see
|
||||
.Xr inet 3 ) ,
|
||||
or IPv6 host name or IPv6 coloned-hexadecimal addreess.
|
||||
The
|
||||
.Op Fl l
|
||||
option may be used to specify the user name
|
||||
|
|
@ -1367,6 +1369,8 @@ The
|
|||
.Nm Telnet
|
||||
command appeared in
|
||||
.Bx 4.2 .
|
||||
.Pp
|
||||
IPv6 support was added by WIDE/KAME project.
|
||||
.Sh NOTES
|
||||
.Pp
|
||||
On some remote systems, echo has to be turned off manually when in
|
||||
|
|
|
|||
|
|
@ -30,8 +30,9 @@
|
|||
.\" SUCH DAMAGE.
|
||||
.\"
|
||||
.\" @(#)telnetd.8 8.4 (Berkeley) 6/1/94
|
||||
.\" $FreeBSD$
|
||||
.\"
|
||||
.Dd June 1, 1994
|
||||
.Dd January 27, 2000
|
||||
.Dt TELNETD 8
|
||||
.Os BSD 4.2
|
||||
.Sh NAME
|
||||
|
|
@ -610,3 +611,5 @@ never sends
|
|||
.Tn TELNET
|
||||
.Dv IAC GA
|
||||
(go ahead) commands.
|
||||
.Sh HISTORY
|
||||
IPv6 support was added by WIDE/KAME project.
|
||||
|
|
|
|||
|
|
@ -70,6 +70,12 @@ static const char rcsid[] =
|
|||
#include <sys/secparm.h>
|
||||
#include <sys/usrv.h>
|
||||
# endif /* SO_SEC_MULTI */
|
||||
|
||||
/* wrapper for KAME-special getnameinfo() */
|
||||
#ifndef NI_WITHSCOPEID
|
||||
#define NI_WITHSCOPEID 0
|
||||
#endif
|
||||
|
||||
int secflag;
|
||||
char tty_dev[16];
|
||||
struct secdev dv;
|
||||
|
|
@ -128,7 +134,7 @@ char ptyibuf2[BUFSIZ];
|
|||
# include <termcap.h>
|
||||
|
||||
int readstream(int p, char *ibuf, int bufsize);
|
||||
void doit(struct sockaddr_in *who);
|
||||
void doit(struct sockaddr *who);
|
||||
int terminaltypeok(char *s);
|
||||
void startslave(char *host, int autologin, char *autoname);
|
||||
|
||||
|
|
@ -145,7 +151,7 @@ int debug = 0;
|
|||
int keepalive = 1;
|
||||
char *altlogin;
|
||||
|
||||
void doit __P((struct sockaddr_in *));
|
||||
void doit __P((struct sockaddr *));
|
||||
int terminaltypeok __P((char *));
|
||||
void startslave __P((char *, int, char *));
|
||||
extern void usage P((void));
|
||||
|
|
@ -157,6 +163,7 @@ extern void usage P((void));
|
|||
*/
|
||||
char valid_opts[] = {
|
||||
'd', ':', 'h', 'k', 'n', 'p', ':', 'S', ':', 'u', ':', 'U',
|
||||
'4', '6',
|
||||
#ifdef AUTHENTICATION
|
||||
'a', ':', 'X', ':',
|
||||
#endif
|
||||
|
|
@ -184,11 +191,13 @@ char valid_opts[] = {
|
|||
'\0'
|
||||
};
|
||||
|
||||
int
|
||||
int family = AF_INET;
|
||||
|
||||
int
|
||||
main(argc, argv)
|
||||
char *argv[];
|
||||
{
|
||||
struct sockaddr_in from;
|
||||
struct sockaddr_storage from;
|
||||
int on = 1, fromlen;
|
||||
register int ch;
|
||||
#if defined(IPPROTO_IP) && defined(IP_TOS)
|
||||
|
|
@ -406,6 +415,16 @@ main(argc, argv)
|
|||
break;
|
||||
#endif /* AUTHENTICATION */
|
||||
|
||||
case '4':
|
||||
family = AF_INET;
|
||||
break;
|
||||
|
||||
#ifdef INET6
|
||||
case '6':
|
||||
family = AF_INET6;
|
||||
break;
|
||||
#endif
|
||||
|
||||
default:
|
||||
warnx("%c: unknown option", ch);
|
||||
/* FALLTHROUGH */
|
||||
|
|
@ -419,43 +438,41 @@ main(argc, argv)
|
|||
argv += optind;
|
||||
|
||||
if (debug) {
|
||||
int s, ns, foo;
|
||||
struct servent *sp;
|
||||
static struct sockaddr_in sin = { AF_INET };
|
||||
int s, ns, foo, error;
|
||||
char *service = "telnet";
|
||||
struct addrinfo hints, *res;
|
||||
|
||||
if (argc > 1) {
|
||||
usage();
|
||||
/* NOT REACHED */
|
||||
} else if (argc == 1) {
|
||||
if ((sp = getservbyname(*argv, "tcp"))) {
|
||||
sin.sin_port = sp->s_port;
|
||||
} else {
|
||||
sin.sin_port = atoi(*argv);
|
||||
if ((int)sin.sin_port <= 0) {
|
||||
warnx("%s: bad port #", *argv);
|
||||
usage();
|
||||
/* NOT REACHED */
|
||||
}
|
||||
sin.sin_port = htons((u_short)sin.sin_port);
|
||||
}
|
||||
} else {
|
||||
sp = getservbyname("telnet", "tcp");
|
||||
if (sp == 0)
|
||||
errx(1, "tcp/telnet: unknown service");
|
||||
sin.sin_port = sp->s_port;
|
||||
} else if (argc == 1)
|
||||
service = *argv;
|
||||
|
||||
memset(&hints, 0, sizeof(hints));
|
||||
hints.ai_flags = AI_PASSIVE;
|
||||
hints.ai_family = family;
|
||||
hints.ai_socktype = SOCK_STREAM;
|
||||
hints.ai_protocol = 0;
|
||||
error = getaddrinfo(NULL, service, &hints, &res);
|
||||
|
||||
if (error) {
|
||||
errx(1, "tcp/%s: %s\n", service, gai_strerror(error));
|
||||
if (error == EAI_SYSTEM)
|
||||
errx(1, "tcp/%s: %s\n", service, strerror(errno));
|
||||
usage();
|
||||
}
|
||||
|
||||
s = socket(AF_INET, SOCK_STREAM, 0);
|
||||
s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
|
||||
if (s < 0)
|
||||
err(1, "socket");
|
||||
(void) setsockopt(s, SOL_SOCKET, SO_REUSEADDR,
|
||||
(char *)&on, sizeof(on));
|
||||
if (bind(s, (struct sockaddr *)&sin, sizeof sin) < 0)
|
||||
if (bind(s, res->ai_addr, res->ai_addrlen) < 0)
|
||||
err(1, "bind");
|
||||
if (listen(s, 1) < 0)
|
||||
err(1, "listen");
|
||||
foo = sizeof sin;
|
||||
ns = accept(s, (struct sockaddr *)&sin, &foo);
|
||||
foo = res->ai_addrlen;
|
||||
ns = accept(s, res->ai_addr, &foo);
|
||||
if (ns < 0)
|
||||
err(1, "accept");
|
||||
(void) dup2(ns, 0);
|
||||
|
|
@ -537,7 +554,7 @@ main(argc, argv)
|
|||
}
|
||||
|
||||
#if defined(IPPROTO_IP) && defined(IP_TOS)
|
||||
{
|
||||
if (from.ss_family == AF_INET) {
|
||||
# if defined(HAS_GETTOS)
|
||||
struct tosent *tp;
|
||||
if (tos < 0 && (tp = gettosbyname("telnet", "tcp")))
|
||||
|
|
@ -553,7 +570,7 @@ main(argc, argv)
|
|||
}
|
||||
#endif /* defined(IPPROTO_IP) && defined(IP_TOS) */
|
||||
net = 0;
|
||||
doit(&from);
|
||||
doit((struct sockaddr *)&from);
|
||||
/* NOTREACHED */
|
||||
return(0);
|
||||
} /* end of main */
|
||||
|
|
@ -821,8 +838,9 @@ char user_name[256];
|
|||
*/
|
||||
void
|
||||
doit(who)
|
||||
struct sockaddr_in *who;
|
||||
struct sockaddr *who;
|
||||
{
|
||||
int err;
|
||||
int ptynum;
|
||||
|
||||
/*
|
||||
|
|
@ -865,16 +883,18 @@ doit(who)
|
|||
#endif /* _SC_CRAY_SECURE_SYS */
|
||||
|
||||
/* get name of connected client */
|
||||
if (realhostname(remote_hostname, sizeof(remote_hostname) - 1,
|
||||
&who->sin_addr) == HOSTNAME_INVALIDADDR && registerd_host_only)
|
||||
if (realhostname_sa(remote_hostname, sizeof(remote_hostname) - 1,
|
||||
who, who->sa_len) == HOSTNAME_INVALIDADDR && registerd_host_only)
|
||||
fatal(net, "Couldn't resolve your address into a host name.\r\n\
|
||||
Please contact your net administrator");
|
||||
remote_hostname[sizeof(remote_hostname) - 1] = '\0';
|
||||
|
||||
trimdomain(remote_hostname, UT_HOSTSIZE);
|
||||
if (!isdigit(remote_hostname[0]) && strlen(remote_hostname) > utmp_len)
|
||||
strncpy(remote_hostname, inet_ntoa(who->sin_addr),
|
||||
sizeof(remote_hostname) - 1);
|
||||
err = getnameinfo(who, who->sa_len, remote_hostname,
|
||||
sizeof(remote_hostname), NULL, 0,
|
||||
NI_NUMERICHOST|NI_WITHSCOPEID);
|
||||
/* XXX: do 'err' check */
|
||||
|
||||
(void) gethostname(host_name, sizeof(host_name) - 1);
|
||||
host_name[sizeof(host_name) - 1] = '\0';
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user