2908 lines
68 KiB
C
2908 lines
68 KiB
C
/* $NetBSD: commands.c,v 1.68 2012/01/09 16:08:55 christos Exp $ */
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/*
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* Copyright (C) 1997 and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
|
||
* notice, this list of conditions and the following disclaimer.
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||
* 2. Redistributions in binary form must reproduce the above copyright
|
||
* notice, this list of conditions and the following disclaimer in the
|
||
* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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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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/*
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* Copyright (c) 1988, 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions
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||
* are met:
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||
* 1. Redistributions of source code must retain the above copyright
|
||
* notice, this list of conditions and the following disclaimer.
|
||
* 2. Redistributions in binary form must reproduce the above copyright
|
||
* notice, this list of conditions and the following disclaimer in the
|
||
* documentation and/or other materials provided with the distribution.
|
||
* 3. Neither the name of the University nor the names of its contributors
|
||
* may be used to endorse or promote products derived from this software
|
||
* without specific prior written permission.
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||
*
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||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
* 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.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)commands.c 8.4 (Berkeley) 5/30/95";
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#else
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__RCSID("$NetBSD: commands.c,v 1.68 2012/01/09 16:08:55 christos Exp $");
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#endif
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/file.h>
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#include <sys/wait.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <ctype.h>
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#include <errno.h>
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#include <netdb.h>
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#include <pwd.h>
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#include <signal.h>
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#include <stdarg.h>
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#include <unistd.h>
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#include <arpa/telnet.h>
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#include "general.h"
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#include "ring.h"
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#include "externs.h"
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#include "defines.h"
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#include "types.h"
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#include <libtelnet/misc.h>
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#ifdef AUTHENTICATION
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#include <libtelnet/auth.h>
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#endif
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#ifdef ENCRYPTION
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#include <libtelnet/encrypt.h>
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#endif
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#if defined(IPPROTO_IP) && defined(IP_TOS)
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int tos = -1;
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#endif /* defined(IPPROTO_IP) && defined(IP_TOS) */
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char *hostname;
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static char _hostname[MAXHOSTNAMELEN];
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typedef struct {
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const char *name; /* command name */
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const char *help; /* help string (NULL for no help) */
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int (*handler) /* routine which executes command */
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(int, char *[]);
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int needconnect; /* Do we need to be connected to execute? */
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} Command;
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static char line[256];
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static char saveline[256];
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||
static int margc;
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static char *margv[20];
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static void makeargv(void);
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static int special(char *);
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static const char *control(cc_t);
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static int sendcmd(int, char **);
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static int send_esc(char *);
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||
static int send_docmd(char *);
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||
static int send_dontcmd(char *);
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||
static int send_willcmd(char *);
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||
static int send_wontcmd(char *);
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||
static int send_help(char *);
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||
static int lclchars(int);
|
||
static int togdebug(int);
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||
static int togcrlf(int);
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||
static int togbinary(int);
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||
static int togrbinary(int);
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||
static int togxbinary(int);
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||
static int togglehelp(int);
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||
static void settogglehelp(int);
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||
static int toggle(int, char *[]);
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||
static struct setlist *getset(char *);
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static int setcmd(int, char *[]);
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||
static int unsetcmd(int, char *[]);
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||
static int dokludgemode(int);
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||
static int dolinemode(int);
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||
static int docharmode(int);
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||
static int dolmmode(int, int );
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||
static int modecmd(int, char *[]);
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static int display(int, char *[]);
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static int setescape(int, char *[]);
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static int togcrmod(int, char *[]);
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static int bye(int, char *[]);
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static void slc_help(int);
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static struct slclist *getslc(char *);
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static int slccmd(int, char *[]);
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static struct env_lst *env_help(const unsigned char *, unsigned char *);
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static struct envlist *getenvcmd(char *);
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#ifdef AUTHENTICATION
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static int auth_help(char *);
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#endif
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#ifdef TN3270
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static void filestuff(int);
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||
#endif
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static int status(int, char *[]);
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static const char *sockaddr_ntop (struct sockaddr *);
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typedef int (*intrtn_t)(int, char **);
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static int call(intrtn_t, ...);
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static Command *getcmd(char *);
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static int help(int, char *[]);
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static void
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makeargv(void)
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{
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char *cp, *cp2, c;
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char **argp = margv;
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static char bang[] = "!";
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margc = 0;
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cp = line;
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if (*cp == '!') { /* Special case shell escape */
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strlcpy(saveline, line, sizeof(saveline)); /* save for shell command */
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*argp++ = bang; /* No room in string to get this */
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margc++;
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cp++;
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}
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while ((c = *cp) != '\0') {
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int inquote = 0;
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while (isspace((unsigned char)c))
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c = *++cp;
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if (c == '\0')
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break;
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*argp++ = cp;
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margc += 1;
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for (cp2 = cp; c != '\0'; c = *++cp) {
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||
if (inquote) {
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||
if (c == inquote) {
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inquote = 0;
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||
continue;
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||
}
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||
} else {
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||
if (c == '\\') {
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if ((c = *++cp) == '\0')
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break;
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} else if (c == '"') {
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inquote = '"';
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continue;
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} else if (c == '\'') {
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inquote = '\'';
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continue;
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} else if (isspace((unsigned char)c))
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break;
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}
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*cp2++ = c;
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}
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*cp2 = '\0';
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if (c == '\0')
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break;
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cp++;
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}
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*argp++ = 0;
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}
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/*
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* Make a character string into a number.
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*
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* Todo: 1. Could take random integers (12, 0x12, 012, 0b1).
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*/
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static int
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special(char *s)
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{
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char c;
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char b;
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switch (*s) {
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case '^':
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b = *++s;
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if (b == '?') {
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c = b | 0x40; /* DEL */
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} else {
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c = b & 0x1f;
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}
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break;
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default:
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c = *s;
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break;
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}
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return c;
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}
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/*
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* Construct a control character sequence
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* for a special character.
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*/
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static const char *
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control(cc_t c)
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||
{
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static char buf[5];
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/*
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* The only way I could get the Sun 3.5 compiler
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||
* to shut up about
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* if ((unsigned int)c >= 0x80)
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* was to assign "c" to an unsigned int variable...
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* Arggg....
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*/
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unsigned int uic = (unsigned int)c;
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if (uic == 0x7f)
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return ("^?");
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if (c == (cc_t)_POSIX_VDISABLE) {
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return "off";
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}
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if (uic >= 0x80) {
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buf[0] = '\\';
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buf[1] = ((c>>6)&07) + '0';
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buf[2] = ((c>>3)&07) + '0';
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buf[3] = (c&07) + '0';
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buf[4] = 0;
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} else if (uic >= 0x20) {
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buf[0] = c;
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buf[1] = 0;
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} else {
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buf[0] = '^';
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buf[1] = '@'+c;
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buf[2] = 0;
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}
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return (buf);
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}
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/*
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* The following are data structures and routines for
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* the "send" command.
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*
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*/
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struct sendlist {
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const char *name; /* How user refers to it (case independent) */
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const char *help; /* Help information (0 ==> no help) */
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int needconnect; /* Need to be connected */
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int narg; /* Number of arguments */
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int (*handler) /* Routine to perform (for special ops) */
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(char *);
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int nbyte; /* Number of bytes to send this command */
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int what; /* Character to be sent (<0 ==> special) */
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};
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static struct sendlist Sendlist[] = {
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{ "ao", "Send Telnet Abort output", 1, 0, 0, 2, AO },
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{ "ayt", "Send Telnet 'Are You There'", 1, 0, 0, 2, AYT },
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{ "brk", "Send Telnet Break", 1, 0, 0, 2, BREAK },
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{ "break", 0, 1, 0, 0, 2, BREAK },
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{ "ec", "Send Telnet Erase Character", 1, 0, 0, 2, EC },
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{ "el", "Send Telnet Erase Line", 1, 0, 0, 2, EL },
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{ "escape", "Send current escape character", 1, 0, send_esc, 1, 0 },
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{ "ga", "Send Telnet 'Go Ahead' sequence", 1, 0, 0, 2, GA },
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{ "ip", "Send Telnet Interrupt Process", 1, 0, 0, 2, IP },
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{ "intp", 0, 1, 0, 0, 2, IP },
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{ "interrupt", 0, 1, 0, 0, 2, IP },
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{ "intr", 0, 1, 0, 0, 2, IP },
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{ "nop", "Send Telnet 'No operation'", 1, 0, 0, 2, NOP },
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{ "eor", "Send Telnet 'End of Record'", 1, 0, 0, 2, EOR },
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{ "abort", "Send Telnet 'Abort Process'", 1, 0, 0, 2, ABORT },
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{ "susp", "Send Telnet 'Suspend Process'", 1, 0, 0, 2, SUSP },
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{ "eof", "Send Telnet End of File Character", 1, 0, 0, 2, xEOF },
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{ "synch", "Perform Telnet 'Synch operation'", 1, 0, dosynch, 2, 0 },
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{ "getstatus", "Send request for STATUS", 1, 0, get_status, 6, 0 },
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{ "?", "Display send options", 0, 0, send_help, 0, 0 },
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{ "help", 0, 0, 0, send_help, 0, 0 },
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{ "do", 0, 0, 1, send_docmd, 3, 0 },
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{ "dont", 0, 0, 1, send_dontcmd, 3, 0 },
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{ "will", 0, 0, 1, send_willcmd, 3, 0 },
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||
{ "wont", 0, 0, 1, send_wontcmd, 3, 0 },
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{ .name = 0 }
|
||
};
|
||
|
||
#define GETSEND(name) ((struct sendlist *) genget(name, (char **) Sendlist, \
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||
sizeof(struct sendlist)))
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||
|
||
static int
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||
sendcmd(int argc, char **argv)
|
||
{
|
||
int count; /* how many bytes we are going to need to send */
|
||
int i;
|
||
struct sendlist *s; /* pointer to current command */
|
||
int success = 0;
|
||
int needconnect = 0;
|
||
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if (argc < 2) {
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||
printf("need at least one argument for 'send' command\n");
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||
printf("'send ?' for help\n");
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||
return 0;
|
||
}
|
||
/*
|
||
* First, validate all the send arguments.
|
||
* In addition, we see how much space we are going to need, and
|
||
* whether or not we will be doing a "SYNCH" operation (which
|
||
* flushes the network queue).
|
||
*/
|
||
count = 0;
|
||
for (i = 1; i < argc; i++) {
|
||
s = GETSEND(argv[i]);
|
||
if (s == 0) {
|
||
printf("Unknown send argument '%s'\n'send ?' for help.\n",
|
||
argv[i]);
|
||
return 0;
|
||
} else if (Ambiguous(s)) {
|
||
printf("Ambiguous send argument '%s'\n'send ?' for help.\n",
|
||
argv[i]);
|
||
return 0;
|
||
}
|
||
if (i + s->narg >= argc) {
|
||
fprintf(stderr,
|
||
"Need %d argument%s to 'send %s' command. 'send %s ?' for help.\n",
|
||
s->narg, s->narg == 1 ? "" : "s", s->name, s->name);
|
||
return 0;
|
||
}
|
||
count += s->nbyte;
|
||
if (s->handler == send_help) {
|
||
send_help(NULL);
|
||
return 0;
|
||
}
|
||
|
||
i += s->narg;
|
||
needconnect += s->needconnect;
|
||
}
|
||
if (!connected && needconnect) {
|
||
printf("?Need to be connected first.\n");
|
||
printf("'send ?' for help\n");
|
||
return 0;
|
||
}
|
||
/* Now, do we have enough room? */
|
||
if (NETROOM() < count) {
|
||
printf("There is not enough room in the buffer TO the network\n");
|
||
printf("to process your request. Nothing will be done.\n");
|
||
printf("('send synch' will throw away most data in the network\n");
|
||
printf("buffer, if this might help.)\n");
|
||
return 0;
|
||
}
|
||
/* OK, they are all OK, now go through again and actually send */
|
||
count = 0;
|
||
for (i = 1; i < argc; i++) {
|
||
if ((s = GETSEND(argv[i])) == 0) {
|
||
fprintf(stderr, "Telnet 'send' error - argument disappeared!\n");
|
||
(void) quit(0, NULL);
|
||
/*NOTREACHED*/
|
||
}
|
||
if (s->handler) {
|
||
count++;
|
||
success += (*s->handler)(argv[i+1]);
|
||
i += s->narg;
|
||
} else {
|
||
NET2ADD(IAC, s->what);
|
||
printoption("SENT", IAC, s->what);
|
||
}
|
||
}
|
||
return (count == success);
|
||
}
|
||
|
||
static int
|
||
send_esc(char *s)
|
||
{
|
||
NETADD(escape);
|
||
return 1;
|
||
}
|
||
|
||
static int
|
||
send_docmd(char *name)
|
||
{
|
||
return(send_tncmd(send_do, "do", name));
|
||
}
|
||
|
||
static int
|
||
send_dontcmd(char *name)
|
||
{
|
||
return(send_tncmd(send_dont, "dont", name));
|
||
}
|
||
static int
|
||
send_willcmd(char *name)
|
||
{
|
||
return(send_tncmd(send_will, "will", name));
|
||
}
|
||
static int
|
||
send_wontcmd(char *name)
|
||
{
|
||
return(send_tncmd(send_wont, "wont", name));
|
||
}
|
||
|
||
int
|
||
send_tncmd(void (*func)(int, int), const char *cmd, char *name)
|
||
{
|
||
const char **cpp;
|
||
int val = 0;
|
||
|
||
if (isprefix(name, "?")) {
|
||
int col, len;
|
||
|
||
printf("usage: send %s <value|option>\n", cmd);
|
||
printf("\"value\" must be from 0 to 255\n");
|
||
printf("Valid options are:\n\t");
|
||
|
||
col = 8;
|
||
for (cpp = telopts; *cpp; cpp++) {
|
||
len = strlen(*cpp) + 3;
|
||
if (col + len > 65) {
|
||
printf("\n\t");
|
||
col = 8;
|
||
}
|
||
printf(" \"%s\"", *cpp);
|
||
col += len;
|
||
}
|
||
printf("\n");
|
||
return 0;
|
||
}
|
||
cpp = (void *)genget(name, __UNCONST(telopts), sizeof(char *));
|
||
if (Ambiguous(cpp)) {
|
||
fprintf(stderr,"'%s': ambiguous argument ('send %s ?' for help).\n",
|
||
name, cmd);
|
||
return 0;
|
||
}
|
||
if (cpp) {
|
||
val = cpp - telopts;
|
||
} else {
|
||
char *cp = name;
|
||
|
||
while (*cp >= '0' && *cp <= '9') {
|
||
val *= 10;
|
||
val += *cp - '0';
|
||
cp++;
|
||
}
|
||
if (*cp != 0) {
|
||
fprintf(stderr, "'%s': unknown argument ('send %s ?' for help).\n",
|
||
name, cmd);
|
||
return 0;
|
||
} else if (val < 0 || val > 255) {
|
||
fprintf(stderr, "'%s': bad value ('send %s ?' for help).\n",
|
||
name, cmd);
|
||
return 0;
|
||
}
|
||
}
|
||
if (!connected) {
|
||
printf("?Need to be connected first.\n");
|
||
return 0;
|
||
}
|
||
(*func)(val, 1);
|
||
return 1;
|
||
}
|
||
|
||
static int
|
||
send_help(char *n)
|
||
{
|
||
struct sendlist *s; /* pointer to current command */
|
||
for (s = Sendlist; s->name; s++) {
|
||
if (s->help)
|
||
printf("%-15s %s\n", s->name, s->help);
|
||
}
|
||
return(0);
|
||
}
|
||
|
||
/*
|
||
* The following are the routines and data structures referred
|
||
* to by the arguments to the "toggle" command.
|
||
*/
|
||
|
||
static int
|
||
lclchars(int n)
|
||
{
|
||
donelclchars = 1;
|
||
return 1;
|
||
}
|
||
|
||
static int
|
||
togdebug(int n)
|
||
{
|
||
if (net > 0 &&
|
||
(SetSockOpt(net, SOL_SOCKET, SO_DEBUG, telnet_debug)) < 0) {
|
||
perror("setsockopt (SO_DEBUG)");
|
||
}
|
||
return 1;
|
||
}
|
||
|
||
static int
|
||
togcrlf(int n)
|
||
{
|
||
if (crlf) {
|
||
printf("Will send carriage returns as telnet <CR><LF>.\n");
|
||
} else {
|
||
printf("Will send carriage returns as telnet <CR><NUL>.\n");
|
||
}
|
||
return 1;
|
||
}
|
||
|
||
int binmode;
|
||
|
||
static int
|
||
togbinary(int val)
|
||
{
|
||
donebinarytoggle = 1;
|
||
|
||
if (val >= 0) {
|
||
binmode = val;
|
||
} else {
|
||
if (my_want_state_is_will(TELOPT_BINARY) &&
|
||
my_want_state_is_do(TELOPT_BINARY)) {
|
||
binmode = 1;
|
||
} else if (my_want_state_is_wont(TELOPT_BINARY) &&
|
||
my_want_state_is_dont(TELOPT_BINARY)) {
|
||
binmode = 0;
|
||
}
|
||
val = binmode ? 0 : 1;
|
||
}
|
||
|
||
if (val == 1) {
|
||
if (my_want_state_is_will(TELOPT_BINARY) &&
|
||
my_want_state_is_do(TELOPT_BINARY)) {
|
||
printf("Already operating in binary mode with remote host.\n");
|
||
} else {
|
||
printf("Negotiating binary mode with remote host.\n");
|
||
tel_enter_binary(3);
|
||
}
|
||
} else {
|
||
if (my_want_state_is_wont(TELOPT_BINARY) &&
|
||
my_want_state_is_dont(TELOPT_BINARY)) {
|
||
printf("Already in network ascii mode with remote host.\n");
|
||
} else {
|
||
printf("Negotiating network ascii mode with remote host.\n");
|
||
tel_leave_binary(3);
|
||
}
|
||
}
|
||
return 1;
|
||
}
|
||
|
||
static int
|
||
togrbinary(int val)
|
||
{
|
||
donebinarytoggle = 1;
|
||
|
||
if (val == -1)
|
||
val = my_want_state_is_do(TELOPT_BINARY) ? 0 : 1;
|
||
|
||
if (val == 1) {
|
||
if (my_want_state_is_do(TELOPT_BINARY)) {
|
||
printf("Already receiving in binary mode.\n");
|
||
} else {
|
||
printf("Negotiating binary mode on input.\n");
|
||
tel_enter_binary(1);
|
||
}
|
||
} else {
|
||
if (my_want_state_is_dont(TELOPT_BINARY)) {
|
||
printf("Already receiving in network ascii mode.\n");
|
||
} else {
|
||
printf("Negotiating network ascii mode on input.\n");
|
||
tel_leave_binary(1);
|
||
}
|
||
}
|
||
return 1;
|
||
}
|
||
|
||
static int
|
||
togxbinary(int val)
|
||
{
|
||
donebinarytoggle = 1;
|
||
|
||
if (val == -1)
|
||
val = my_want_state_is_will(TELOPT_BINARY) ? 0 : 1;
|
||
|
||
if (val == 1) {
|
||
if (my_want_state_is_will(TELOPT_BINARY)) {
|
||
printf("Already transmitting in binary mode.\n");
|
||
} else {
|
||
printf("Negotiating binary mode on output.\n");
|
||
tel_enter_binary(2);
|
||
}
|
||
} else {
|
||
if (my_want_state_is_wont(TELOPT_BINARY)) {
|
||
printf("Already transmitting in network ascii mode.\n");
|
||
} else {
|
||
printf("Negotiating network ascii mode on output.\n");
|
||
tel_leave_binary(2);
|
||
}
|
||
}
|
||
return 1;
|
||
}
|
||
|
||
#ifdef ENCRYPTION
|
||
extern int EncryptAutoEnc(int);
|
||
extern int EncryptAutoDec(int);
|
||
extern int EncryptDebug(int);
|
||
extern int EncryptVerbose(int);
|
||
#endif /* ENCRYPTION */
|
||
|
||
struct togglelist {
|
||
const char *name; /* name of toggle */
|
||
const char *help; /* help message */
|
||
int (*handler) /* routine to do actual setting */
|
||
(int);
|
||
int *variable;
|
||
const char *actionexplanation;
|
||
};
|
||
|
||
static struct togglelist Togglelist[] = {
|
||
{ "autoflush",
|
||
"flushing of output when sending interrupt characters",
|
||
0,
|
||
&autoflush,
|
||
"flush output when sending interrupt characters" },
|
||
{ "autosynch",
|
||
"automatic sending of interrupt characters in urgent mode",
|
||
0,
|
||
&autosynch,
|
||
"send interrupt characters in urgent mode" },
|
||
#ifdef AUTHENTICATION
|
||
{ "autologin",
|
||
"automatic sending of login and/or authentication info",
|
||
0,
|
||
&autologin,
|
||
"send login name and/or authentication information" },
|
||
{ "authdebug",
|
||
"Toggle authentication debugging",
|
||
auth_togdebug,
|
||
0,
|
||
"print authentication debugging information" },
|
||
#endif
|
||
#ifdef ENCRYPTION
|
||
{ "autoencrypt",
|
||
"automatic encryption of data stream",
|
||
EncryptAutoEnc,
|
||
0,
|
||
"automatically encrypt output" },
|
||
{ "autodecrypt",
|
||
"automatic decryption of data stream",
|
||
EncryptAutoDec,
|
||
0,
|
||
"automatically decrypt input" },
|
||
{ "verbose_encrypt",
|
||
"Toggle verbose encryption output",
|
||
EncryptVerbose,
|
||
0,
|
||
"print verbose encryption output" },
|
||
{ "encdebug",
|
||
"Toggle encryption debugging",
|
||
EncryptDebug,
|
||
0,
|
||
"print encryption debugging information" },
|
||
#endif /* ENCRYPTION */
|
||
{ "skiprc",
|
||
"don't read ~/.telnetrc file",
|
||
0,
|
||
&skiprc,
|
||
"skip reading of ~/.telnetrc file" },
|
||
{ "binary",
|
||
"sending and receiving of binary data",
|
||
togbinary,
|
||
0,
|
||
0 },
|
||
{ "inbinary",
|
||
"receiving of binary data",
|
||
togrbinary,
|
||
0,
|
||
0 },
|
||
{ "outbinary",
|
||
"sending of binary data",
|
||
togxbinary,
|
||
0,
|
||
0 },
|
||
{ "crlf",
|
||
"sending carriage returns as telnet <CR><LF>",
|
||
togcrlf,
|
||
&crlf,
|
||
0 },
|
||
{ "crmod",
|
||
"mapping of received carriage returns",
|
||
0,
|
||
&crmod,
|
||
"map carriage return on output" },
|
||
{ "localchars",
|
||
"local recognition of certain control characters",
|
||
lclchars,
|
||
&localchars,
|
||
"recognize certain control characters" },
|
||
{ " ", "", 0, NULL, NULL }, /* empty line */
|
||
#ifdef TN3270
|
||
{ "apitrace",
|
||
"(debugging) toggle tracing of API transactions",
|
||
0,
|
||
&apitrace,
|
||
"trace API transactions" },
|
||
{ "cursesdata",
|
||
"(debugging) toggle printing of hexadecimal curses data",
|
||
0,
|
||
&cursesdata,
|
||
"print hexadecimal representation of curses data" },
|
||
#endif /* defined(TN3270) */
|
||
{ "debug",
|
||
"debugging",
|
||
togdebug,
|
||
&telnet_debug,
|
||
"turn on socket level debugging" },
|
||
{ "netdata",
|
||
"printing of hexadecimal network data (debugging)",
|
||
0,
|
||
&netdata,
|
||
"print hexadecimal representation of network traffic" },
|
||
{ "prettydump",
|
||
"output of \"netdata\" to user readable format (debugging)",
|
||
0,
|
||
&prettydump,
|
||
"print user readable output for \"netdata\"" },
|
||
{ "options",
|
||
"viewing of options processing (debugging)",
|
||
0,
|
||
&showoptions,
|
||
"show option processing" },
|
||
{ "termdata",
|
||
"(debugging) toggle printing of hexadecimal terminal data",
|
||
0,
|
||
&termdata,
|
||
"print hexadecimal representation of terminal traffic" },
|
||
{ "?",
|
||
0,
|
||
togglehelp, NULL, NULL },
|
||
{ "help",
|
||
0,
|
||
togglehelp, NULL, NULL },
|
||
{ .name = 0 }
|
||
};
|
||
|
||
static int
|
||
togglehelp(int n)
|
||
{
|
||
struct togglelist *c;
|
||
|
||
for (c = Togglelist; c->name; c++) {
|
||
if (c->help) {
|
||
if (*c->help)
|
||
printf("%-15s toggle %s\n", c->name, c->help);
|
||
else
|
||
printf("\n");
|
||
}
|
||
}
|
||
printf("\n");
|
||
printf("%-15s %s\n", "?", "display help information");
|
||
return 0;
|
||
}
|
||
|
||
static void
|
||
settogglehelp(int set)
|
||
{
|
||
struct togglelist *c;
|
||
|
||
for (c = Togglelist; c->name; c++) {
|
||
if (c->help) {
|
||
if (*c->help)
|
||
printf("%-15s %s %s\n", c->name, set ? "enable" : "disable",
|
||
c->help);
|
||
else
|
||
printf("\n");
|
||
}
|
||
}
|
||
}
|
||
|
||
#define GETTOGGLE(name) (struct togglelist *) \
|
||
genget(name, (char **) Togglelist, sizeof(struct togglelist))
|
||
|
||
static int
|
||
toggle(int argc, char *argv[])
|
||
{
|
||
int retval = 1;
|
||
char *name;
|
||
struct togglelist *c;
|
||
|
||
if (argc < 2) {
|
||
fprintf(stderr,
|
||
"Need an argument to 'toggle' command. 'toggle ?' for help.\n");
|
||
return 0;
|
||
}
|
||
argc--;
|
||
argv++;
|
||
while (argc--) {
|
||
name = *argv++;
|
||
c = GETTOGGLE(name);
|
||
if (Ambiguous(c)) {
|
||
fprintf(stderr, "'%s': ambiguous argument ('toggle ?' for help).\n",
|
||
name);
|
||
return 0;
|
||
} else if (c == 0) {
|
||
fprintf(stderr, "'%s': unknown argument ('toggle ?' for help).\n",
|
||
name);
|
||
return 0;
|
||
} else {
|
||
if (c->variable) {
|
||
*c->variable = !*c->variable; /* invert it */
|
||
if (c->actionexplanation) {
|
||
printf("%s %s.\n", *c->variable? "Will" : "Won't",
|
||
c->actionexplanation);
|
||
}
|
||
}
|
||
if (c->handler) {
|
||
retval &= (*c->handler)(-1);
|
||
}
|
||
}
|
||
}
|
||
return retval;
|
||
}
|
||
|
||
/*
|
||
* The following perform the "set" command.
|
||
*/
|
||
|
||
struct termios new_tc = { .c_iflag = 0 };
|
||
|
||
struct setlist {
|
||
const char *name; /* name */
|
||
const char *help; /* help information */
|
||
void (*handler)(char *);
|
||
cc_t *charp; /* where it is located at */
|
||
};
|
||
|
||
static struct setlist Setlist[] = {
|
||
#ifdef KLUDGELINEMODE
|
||
{ "echo", "character to toggle local echoing on/off", 0, &echoc },
|
||
#endif
|
||
{ "escape", "character to escape back to telnet command mode", 0, &escape },
|
||
{ "rlogin", "rlogin escape character", 0, &rlogin },
|
||
{ "tracefile", "file to write trace information to", SetNetTrace, (cc_t *)NetTraceFile},
|
||
{ " ", "", NULL, NULL },
|
||
{ " ", "The following need 'localchars' to be toggled true", 0, 0 },
|
||
{ "flushoutput", "character to cause an Abort Output", 0, termFlushCharp },
|
||
{ "interrupt", "character to cause an Interrupt Process", 0, termIntCharp },
|
||
{ "quit", "character to cause an Abort process", 0, termQuitCharp },
|
||
{ "eof", "character to cause an EOF ", 0, termEofCharp },
|
||
{ " ", "", NULL, NULL },
|
||
{ " ", "The following are for local editing in linemode", 0, 0 },
|
||
{ "erase", "character to use to erase a character", 0, termEraseCharp },
|
||
{ "kill", "character to use to erase a line", 0, termKillCharp },
|
||
{ "lnext", "character to use for literal next", 0, termLiteralNextCharp },
|
||
{ "susp", "character to cause a Suspend Process", 0, termSuspCharp },
|
||
{ "reprint", "character to use for line reprint", 0, termRprntCharp },
|
||
{ "worderase", "character to use to erase a word", 0, termWerasCharp },
|
||
{ "start", "character to use for XON", 0, termStartCharp },
|
||
{ "stop", "character to use for XOFF", 0, termStopCharp },
|
||
{ "forw1", "alternate end of line character", 0, termForw1Charp },
|
||
{ "forw2", "alternate end of line character", 0, termForw2Charp },
|
||
{ "ayt", "alternate AYT character", 0, termAytCharp },
|
||
{ .name = 0 }
|
||
};
|
||
|
||
static struct setlist *
|
||
getset(char *name)
|
||
{
|
||
return (struct setlist *)
|
||
genget(name, (char **) Setlist, sizeof(struct setlist));
|
||
}
|
||
|
||
void
|
||
set_escape_char(char *s)
|
||
{
|
||
if (rlogin != _POSIX_VDISABLE) {
|
||
rlogin = (s && *s) ? special(s) : _POSIX_VDISABLE;
|
||
printf("Telnet rlogin escape character is '%s'.\n",
|
||
control(rlogin));
|
||
} else {
|
||
escape = (s && *s) ? special(s) : _POSIX_VDISABLE;
|
||
printf("Telnet escape character is '%s'.\n", control(escape));
|
||
}
|
||
}
|
||
|
||
static int
|
||
setcmd(int argc, char *argv[])
|
||
{
|
||
int value;
|
||
struct setlist *ct;
|
||
struct togglelist *c;
|
||
|
||
if (argc < 2 || argc > 3) {
|
||
printf("Format is 'set Name Value'\n'set ?' for help.\n");
|
||
return 0;
|
||
}
|
||
if ((argc == 2) && (isprefix(argv[1], "?") || isprefix(argv[1], "help"))) {
|
||
for (ct = Setlist; ct->name; ct++)
|
||
printf("%-15s %s\n", ct->name, ct->help);
|
||
printf("\n");
|
||
settogglehelp(1);
|
||
printf("%-15s %s\n", "?", "display help information");
|
||
return 0;
|
||
}
|
||
|
||
ct = getset(argv[1]);
|
||
if (ct == 0) {
|
||
c = GETTOGGLE(argv[1]);
|
||
if (c == 0) {
|
||
fprintf(stderr, "'%s': unknown argument ('set ?' for help).\n",
|
||
argv[1]);
|
||
return 0;
|
||
} else if (Ambiguous(c)) {
|
||
fprintf(stderr, "'%s': ambiguous argument ('set ?' for help).\n",
|
||
argv[1]);
|
||
return 0;
|
||
}
|
||
if (c->variable) {
|
||
if ((argc == 2) || (strcmp("on", argv[2]) == 0))
|
||
*c->variable = 1;
|
||
else if (strcmp("off", argv[2]) == 0)
|
||
*c->variable = 0;
|
||
else {
|
||
printf("Format is 'set togglename [on|off]'\n'set ?' for help.\n");
|
||
return 0;
|
||
}
|
||
if (c->actionexplanation) {
|
||
printf("%s %s.\n", *c->variable? "Will" : "Won't",
|
||
c->actionexplanation);
|
||
}
|
||
}
|
||
if (c->handler)
|
||
(*c->handler)(1);
|
||
} else if (argc != 3) {
|
||
printf("Format is 'set Name Value'\n'set ?' for help.\n");
|
||
return 0;
|
||
} else if (Ambiguous(ct)) {
|
||
fprintf(stderr, "'%s': ambiguous argument ('set ?' for help).\n",
|
||
argv[1]);
|
||
return 0;
|
||
} else if (ct->handler) {
|
||
(*ct->handler)(argv[2]);
|
||
printf("%s set to \"%s\".\n", ct->name, (char *)ct->charp);
|
||
} else {
|
||
if (strcmp("off", argv[2])) {
|
||
value = special(argv[2]);
|
||
} else {
|
||
value = _POSIX_VDISABLE;
|
||
}
|
||
*(ct->charp) = (cc_t)value;
|
||
printf("%s character is '%s'.\n", ct->name, control(*(ct->charp)));
|
||
}
|
||
slc_check();
|
||
return 1;
|
||
}
|
||
|
||
static int
|
||
unsetcmd(int argc, char *argv[])
|
||
{
|
||
struct setlist *ct;
|
||
struct togglelist *c;
|
||
char *name;
|
||
|
||
if (argc < 2) {
|
||
fprintf(stderr,
|
||
"Need an argument to 'unset' command. 'unset ?' for help.\n");
|
||
return 0;
|
||
}
|
||
if (isprefix(argv[1], "?") || isprefix(argv[1], "help")) {
|
||
for (ct = Setlist; ct->name; ct++)
|
||
printf("%-15s %s\n", ct->name, ct->help);
|
||
printf("\n");
|
||
settogglehelp(0);
|
||
printf("%-15s %s\n", "?", "display help information");
|
||
return 0;
|
||
}
|
||
|
||
argc--;
|
||
argv++;
|
||
while (argc--) {
|
||
name = *argv++;
|
||
ct = getset(name);
|
||
if (ct == 0) {
|
||
c = GETTOGGLE(name);
|
||
if (c == 0) {
|
||
fprintf(stderr, "'%s': unknown argument ('unset ?' for help).\n",
|
||
name);
|
||
return 0;
|
||
} else if (Ambiguous(c)) {
|
||
fprintf(stderr, "'%s': ambiguous argument ('unset ?' for help).\n",
|
||
name);
|
||
return 0;
|
||
}
|
||
if (c->variable) {
|
||
*c->variable = 0;
|
||
if (c->actionexplanation) {
|
||
printf("%s %s.\n", *c->variable? "Will" : "Won't",
|
||
c->actionexplanation);
|
||
}
|
||
}
|
||
if (c->handler)
|
||
(*c->handler)(0);
|
||
} else if (Ambiguous(ct)) {
|
||
fprintf(stderr, "'%s': ambiguous argument ('unset ?' for help).\n",
|
||
name);
|
||
return 0;
|
||
} else if (ct->handler) {
|
||
(*ct->handler)(0);
|
||
printf("%s reset to \"%s\".\n", ct->name, (char *)ct->charp);
|
||
} else {
|
||
*(ct->charp) = _POSIX_VDISABLE;
|
||
printf("%s character is '%s'.\n", ct->name, control(*(ct->charp)));
|
||
}
|
||
}
|
||
return 1;
|
||
}
|
||
|
||
/*
|
||
* The following are the data structures and routines for the
|
||
* 'mode' command.
|
||
*/
|
||
#ifdef KLUDGELINEMODE
|
||
extern int kludgelinemode;
|
||
|
||
static int
|
||
dokludgemode(int n)
|
||
{
|
||
kludgelinemode = 1;
|
||
send_wont(TELOPT_LINEMODE, 1);
|
||
send_dont(TELOPT_SGA, 1);
|
||
send_dont(TELOPT_ECHO, 1);
|
||
return 1;
|
||
}
|
||
#endif
|
||
|
||
static int
|
||
dolinemode(int n)
|
||
{
|
||
#ifdef KLUDGELINEMODE
|
||
if (kludgelinemode)
|
||
send_dont(TELOPT_SGA, 1);
|
||
#endif
|
||
send_will(TELOPT_LINEMODE, 1);
|
||
send_dont(TELOPT_ECHO, 1);
|
||
return 1;
|
||
}
|
||
|
||
static int
|
||
docharmode(int n)
|
||
{
|
||
#ifdef KLUDGELINEMODE
|
||
if (kludgelinemode)
|
||
send_do(TELOPT_SGA, 1);
|
||
else
|
||
#endif
|
||
send_wont(TELOPT_LINEMODE, 1);
|
||
send_do(TELOPT_ECHO, 1);
|
||
return 1;
|
||
}
|
||
|
||
static int
|
||
dolmmode(int bit, int on)
|
||
{
|
||
unsigned char c;
|
||
extern int linemode;
|
||
|
||
if (my_want_state_is_wont(TELOPT_LINEMODE)) {
|
||
printf("?Need to have LINEMODE option enabled first.\n");
|
||
printf("'mode ?' for help.\n");
|
||
return 0;
|
||
}
|
||
|
||
if (on)
|
||
c = (linemode | bit);
|
||
else
|
||
c = (linemode & ~bit);
|
||
lm_mode(&c, 1, 1);
|
||
return 1;
|
||
}
|
||
|
||
int
|
||
set_mode(int bit)
|
||
{
|
||
return dolmmode(bit, 1);
|
||
}
|
||
|
||
int
|
||
clear_mode(int bit)
|
||
{
|
||
return dolmmode(bit, 0);
|
||
}
|
||
|
||
struct modelist {
|
||
const char *name; /* command name */
|
||
const char *help; /* help string */
|
||
int (*handler) /* routine which executes command */
|
||
(int);
|
||
int needconnect; /* Do we need to be connected to execute? */
|
||
int arg1;
|
||
};
|
||
|
||
static struct modelist ModeList[] = {
|
||
{ "character", "Disable LINEMODE option", docharmode, 1, 0 },
|
||
#ifdef KLUDGELINEMODE
|
||
{ "", "(or disable obsolete line-by-line mode)", 0, 0, 0 },
|
||
#endif
|
||
{ "line", "Enable LINEMODE option", dolinemode, 1, 0 },
|
||
#ifdef KLUDGELINEMODE
|
||
{ "", "(or enable obsolete line-by-line mode)", 0, 0, 0 },
|
||
#endif
|
||
{ "", "", 0, 0, 0 },
|
||
{ "", "These require the LINEMODE option to be enabled", 0, 0, 0 },
|
||
{ "isig", "Enable signal trapping", set_mode, 1, MODE_TRAPSIG },
|
||
{ "+isig", 0, set_mode, 1, MODE_TRAPSIG },
|
||
{ "-isig", "Disable signal trapping", clear_mode, 1, MODE_TRAPSIG },
|
||
{ "edit", "Enable character editing", set_mode, 1, MODE_EDIT },
|
||
{ "+edit", 0, set_mode, 1, MODE_EDIT },
|
||
{ "-edit", "Disable character editing", clear_mode, 1, MODE_EDIT },
|
||
{ "softtabs", "Enable tab expansion", set_mode, 1, MODE_SOFT_TAB },
|
||
{ "+softtabs", 0, set_mode, 1, MODE_SOFT_TAB },
|
||
{ "-softtabs", "Disable character editing", clear_mode, 1, MODE_SOFT_TAB },
|
||
{ "litecho", "Enable literal character echo", set_mode, 1, MODE_LIT_ECHO },
|
||
{ "+litecho", 0, set_mode, 1, MODE_LIT_ECHO },
|
||
{ "-litecho", "Disable literal character echo", clear_mode, 1, MODE_LIT_ECHO },
|
||
{ "help", 0, modehelp, 0, 0 },
|
||
#ifdef KLUDGELINEMODE
|
||
{ "kludgeline", 0, dokludgemode, 1, 0 },
|
||
#endif
|
||
{ "", "", 0, 0, 0 },
|
||
{ "?", "Print help information", modehelp, 0, 0 },
|
||
{ .name = 0 },
|
||
};
|
||
|
||
|
||
int
|
||
modehelp(int n)
|
||
{
|
||
struct modelist *mt;
|
||
|
||
printf("format is: 'mode Mode', where 'Mode' is one of:\n\n");
|
||
for (mt = ModeList; mt->name; mt++) {
|
||
if (mt->help) {
|
||
if (*mt->help)
|
||
printf("%-15s %s\n", mt->name, mt->help);
|
||
else
|
||
printf("\n");
|
||
}
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
#define GETMODECMD(name) (struct modelist *) \
|
||
genget(name, (char **) ModeList, sizeof(struct modelist))
|
||
|
||
static int
|
||
modecmd(int argc, char *argv[])
|
||
{
|
||
struct modelist *mt;
|
||
|
||
if (argc != 2) {
|
||
printf("'mode' command requires an argument\n");
|
||
printf("'mode ?' for help.\n");
|
||
} else if ((mt = GETMODECMD(argv[1])) == 0) {
|
||
fprintf(stderr, "Unknown mode '%s' ('mode ?' for help).\n", argv[1]);
|
||
} else if (Ambiguous(mt)) {
|
||
fprintf(stderr, "Ambiguous mode '%s' ('mode ?' for help).\n", argv[1]);
|
||
} else if (mt->needconnect && !connected) {
|
||
printf("?Need to be connected first.\n");
|
||
printf("'mode ?' for help.\n");
|
||
} else if (mt->handler) {
|
||
return (*mt->handler)(mt->arg1);
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
/*
|
||
* The following data structures and routines implement the
|
||
* "display" command.
|
||
*/
|
||
|
||
static int
|
||
display(int argc, char *argv[])
|
||
{
|
||
struct togglelist *tl;
|
||
struct setlist *sl;
|
||
|
||
#define dotog(tl) if (tl->variable && tl->actionexplanation) { \
|
||
if (*tl->variable) { \
|
||
printf("will"); \
|
||
} else { \
|
||
printf("won't"); \
|
||
} \
|
||
printf(" %s.\n", tl->actionexplanation); \
|
||
}
|
||
|
||
#define doset(sl) if (sl->name && *sl->name != ' ') { \
|
||
if (sl->handler == 0) \
|
||
printf("%-15s [%s]\n", sl->name, control(*sl->charp)); \
|
||
else \
|
||
printf("%-15s \"%s\"\n", sl->name, (char *)sl->charp); \
|
||
}
|
||
|
||
if (argc == 1) {
|
||
for (tl = Togglelist; tl->name; tl++) {
|
||
dotog(tl);
|
||
}
|
||
printf("\n");
|
||
for (sl = Setlist; sl->name; sl++) {
|
||
doset(sl);
|
||
}
|
||
} else {
|
||
int i;
|
||
|
||
for (i = 1; i < argc; i++) {
|
||
sl = getset(argv[i]);
|
||
tl = GETTOGGLE(argv[i]);
|
||
if (Ambiguous(sl) || Ambiguous(tl)) {
|
||
printf("?Ambiguous argument '%s'.\n", argv[i]);
|
||
return 0;
|
||
} else if (!sl && !tl) {
|
||
printf("?Unknown argument '%s'.\n", argv[i]);
|
||
return 0;
|
||
} else {
|
||
if (tl) {
|
||
dotog(tl);
|
||
}
|
||
if (sl) {
|
||
doset(sl);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
/*@*/optionstatus();
|
||
#ifdef ENCRYPTION
|
||
EncryptStatus();
|
||
#endif /* ENCRYPTION */
|
||
return 1;
|
||
#undef doset
|
||
#undef dotog
|
||
}
|
||
|
||
/*
|
||
* The following are the data structures, and many of the routines,
|
||
* relating to command processing.
|
||
*/
|
||
|
||
/*
|
||
* Set the escape character.
|
||
*/
|
||
static int
|
||
setescape(int argc, char *argv[])
|
||
{
|
||
char *arg;
|
||
char buf[50];
|
||
|
||
printf(
|
||
"Deprecated usage - please use 'set escape%s%s' in the future.\n",
|
||
(argc > 2)? " ":"", (argc > 2)? argv[1]: "");
|
||
if (argc > 2)
|
||
arg = argv[1];
|
||
else {
|
||
printf("new escape character: ");
|
||
(void) fgets(buf, sizeof(buf), stdin);
|
||
arg = buf;
|
||
}
|
||
if (arg[0] != '\0')
|
||
escape = arg[0];
|
||
if (!In3270) {
|
||
printf("Escape character is '%s'.\n", control(escape));
|
||
}
|
||
(void) fflush(stdout);
|
||
return 1;
|
||
}
|
||
|
||
/*VARARGS*/
|
||
static int
|
||
togcrmod(int argc, char *argv[])
|
||
{
|
||
crmod = !crmod;
|
||
printf("Deprecated usage - please use 'toggle crmod' in the future.\n");
|
||
printf("%s map carriage return on output.\n", crmod ? "Will" : "Won't");
|
||
(void) fflush(stdout);
|
||
return 1;
|
||
}
|
||
|
||
/*VARARGS*/
|
||
int
|
||
suspend(int argc, char *argv[])
|
||
{
|
||
setcommandmode();
|
||
{
|
||
long oldrows, oldcols, newrows, newcols, err;
|
||
|
||
err = (TerminalWindowSize(&oldrows, &oldcols) == 0) ? 1 : 0;
|
||
(void) kill(0, SIGTSTP);
|
||
/*
|
||
* If we didn't get the window size before the SUSPEND, but we
|
||
* can get them now (?), then send the NAWS to make sure that
|
||
* we are set up for the right window size.
|
||
*/
|
||
if (TerminalWindowSize(&newrows, &newcols) && connected &&
|
||
(err || ((oldrows != newrows) || (oldcols != newcols)))) {
|
||
sendnaws();
|
||
}
|
||
}
|
||
/* reget parameters in case they were changed */
|
||
TerminalSaveState();
|
||
setconnmode(0);
|
||
return 1;
|
||
}
|
||
|
||
#ifndef TN3270
|
||
/*ARGSUSED*/
|
||
int
|
||
shell(int argc, char *argv[])
|
||
{
|
||
long oldrows, oldcols, newrows, newcols;
|
||
long volatile err; /* Avoid vfork clobbering */
|
||
|
||
setcommandmode();
|
||
|
||
err = (TerminalWindowSize(&oldrows, &oldcols) == 0) ? 1 : 0;
|
||
switch(vfork()) {
|
||
case -1:
|
||
perror("Fork failed");
|
||
break;
|
||
|
||
case 0:
|
||
{
|
||
/*
|
||
* Fire up the shell in the child.
|
||
*/
|
||
const char *shellp, *shellname;
|
||
|
||
shellp = getenv("SHELL");
|
||
if (shellp == NULL)
|
||
shellp = "/bin/sh";
|
||
if ((shellname = strrchr(shellp, '/')) == 0)
|
||
shellname = shellp;
|
||
else
|
||
shellname++;
|
||
if (argc > 1)
|
||
execl(shellp, shellname, "-c", &saveline[1], NULL);
|
||
else
|
||
execl(shellp, shellname, NULL);
|
||
perror("execl");
|
||
_exit(1);
|
||
}
|
||
default:
|
||
(void)wait((int *)0); /* Wait for the shell to complete */
|
||
|
||
if (TerminalWindowSize(&newrows, &newcols) && connected &&
|
||
(err || ((oldrows != newrows) || (oldcols != newcols)))) {
|
||
sendnaws();
|
||
}
|
||
break;
|
||
}
|
||
return 1;
|
||
}
|
||
#endif /* !defined(TN3270) */
|
||
|
||
/*VARARGS*/
|
||
static int
|
||
bye(int argc, char *argv[])
|
||
{
|
||
extern int resettermname;
|
||
|
||
if (connected) {
|
||
(void) shutdown(net, 2);
|
||
printf("Connection closed.\n");
|
||
(void) NetClose(net);
|
||
connected = 0;
|
||
resettermname = 1;
|
||
#if defined(AUTHENTICATION) || defined(ENCRYPTION)
|
||
auth_encrypt_connect(connected);
|
||
#endif /* defined(AUTHENTICATION) */
|
||
/* reset options */
|
||
tninit();
|
||
#ifdef TN3270
|
||
SetIn3270(); /* Get out of 3270 mode */
|
||
#endif /* defined(TN3270) */
|
||
}
|
||
if ((argc != 2) || (strcmp(argv[1], "fromquit") != 0)) {
|
||
longjmp(toplevel, 1);
|
||
/* NOTREACHED */
|
||
}
|
||
return 1; /* Keep lint, etc., happy */
|
||
}
|
||
|
||
/*VARARGS*/
|
||
int
|
||
quit(int argc, char *argv[])
|
||
{
|
||
(void) call(bye, "bye", "fromquit", 0);
|
||
Exit(0);
|
||
/*NOTREACHED*/
|
||
}
|
||
|
||
/*VARARGS*/
|
||
int
|
||
logout(int argc, char *argv[])
|
||
{
|
||
send_do(TELOPT_LOGOUT, 1);
|
||
(void) netflush();
|
||
return 1;
|
||
}
|
||
|
||
|
||
/*
|
||
* The SLC command.
|
||
*/
|
||
|
||
struct slclist {
|
||
const char *name;
|
||
const char *help;
|
||
void (*handler)(int);
|
||
int arg;
|
||
};
|
||
|
||
struct slclist SlcList[] = {
|
||
{ "export", "Use local special character definitions",
|
||
slc_mode_export, 0 },
|
||
{ "import", "Use remote special character definitions",
|
||
slc_mode_import, 1 },
|
||
{ "check", "Verify remote special character definitions",
|
||
slc_mode_import, 0 },
|
||
{ "help", 0, slc_help, 0 },
|
||
{ "?", "Print help information", slc_help, 0 },
|
||
{ .name = 0 },
|
||
};
|
||
|
||
static void
|
||
slc_help(int n)
|
||
{
|
||
struct slclist *c;
|
||
|
||
for (c = SlcList; c->name; c++) {
|
||
if (c->help) {
|
||
if (*c->help)
|
||
printf("%-15s %s\n", c->name, c->help);
|
||
else
|
||
printf("\n");
|
||
}
|
||
}
|
||
}
|
||
|
||
static struct slclist *
|
||
getslc(char *name)
|
||
{
|
||
return (struct slclist *)
|
||
genget(name, (char **) SlcList, sizeof(struct slclist));
|
||
}
|
||
|
||
static int
|
||
slccmd(int argc, char *argv[])
|
||
{
|
||
struct slclist *c;
|
||
|
||
if (argc != 2) {
|
||
fprintf(stderr,
|
||
"Need an argument to 'slc' command. 'slc ?' for help.\n");
|
||
return 0;
|
||
}
|
||
c = getslc(argv[1]);
|
||
if (c == 0) {
|
||
fprintf(stderr, "'%s': unknown argument ('slc ?' for help).\n",
|
||
argv[1]);
|
||
return 0;
|
||
}
|
||
if (Ambiguous(c)) {
|
||
fprintf(stderr, "'%s': ambiguous argument ('slc ?' for help).\n",
|
||
argv[1]);
|
||
return 0;
|
||
}
|
||
(*c->handler)(c->arg);
|
||
slcstate();
|
||
return 1;
|
||
}
|
||
|
||
/*
|
||
* The ENVIRON command.
|
||
*/
|
||
|
||
struct envlist {
|
||
const char *name;
|
||
const char *help;
|
||
struct env_lst *(*handler)(const unsigned char *, unsigned char *);
|
||
int narg;
|
||
};
|
||
|
||
struct envlist EnvList[] = {
|
||
{ "define", "Define an environment variable",
|
||
env_define, 2 },
|
||
{ "undefine", "Undefine an environment variable",
|
||
env_undefine, 1 },
|
||
{ "export", "Mark an environment variable for automatic export",
|
||
env_export, 1 },
|
||
{ "unexport", "Don't mark an environment variable for automatic export",
|
||
env_unexport, 1 },
|
||
{ "send", "Send an environment variable", env_send, 1 },
|
||
{ "list", "List the current environment variables",
|
||
env_list, 0 },
|
||
#if defined(OLD_ENVIRON) && defined(ENV_HACK)
|
||
{ "varval", "Reverse VAR and VALUE (auto, right, wrong, status)",
|
||
env_varval, 1 },
|
||
#endif
|
||
{ "help", 0, env_help, 0 },
|
||
{ "?", "Print help information", env_help, 0 },
|
||
{ .name = 0 },
|
||
};
|
||
|
||
static struct env_lst *
|
||
env_help(const unsigned char *us1, unsigned char *us2)
|
||
{
|
||
struct envlist *c;
|
||
|
||
for (c = EnvList; c->name; c++) {
|
||
if (c->help) {
|
||
if (*c->help)
|
||
printf("%-15s %s\n", c->name, c->help);
|
||
else
|
||
printf("\n");
|
||
}
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
static struct envlist *
|
||
getenvcmd(char *name)
|
||
{
|
||
return (struct envlist *)
|
||
genget(name, (char **) EnvList, sizeof(struct envlist));
|
||
}
|
||
|
||
int
|
||
env_cmd(int argc, char *argv[])
|
||
{
|
||
struct envlist *c;
|
||
|
||
if (argc < 2) {
|
||
fprintf(stderr,
|
||
"Need an argument to 'environ' command. 'environ ?' for help.\n");
|
||
return 0;
|
||
}
|
||
c = getenvcmd(argv[1]);
|
||
if (c == 0) {
|
||
fprintf(stderr, "'%s': unknown argument ('environ ?' for help).\n",
|
||
argv[1]);
|
||
return 0;
|
||
}
|
||
if (Ambiguous(c)) {
|
||
fprintf(stderr, "'%s': ambiguous argument ('environ ?' for help).\n",
|
||
argv[1]);
|
||
return 0;
|
||
}
|
||
if (c->narg + 2 != argc) {
|
||
fprintf(stderr,
|
||
"Need %s%d argument%s to 'environ %s' command. 'environ ?' for help.\n",
|
||
c->narg < argc + 2 ? "only " : "",
|
||
c->narg, c->narg == 1 ? "" : "s", c->name);
|
||
return 0;
|
||
}
|
||
(*c->handler)(argv[2], argv[3]);
|
||
return 1;
|
||
}
|
||
|
||
struct env_lst {
|
||
struct env_lst *next; /* pointer to next structure */
|
||
struct env_lst *prev; /* pointer to previous structure */
|
||
unsigned char *var; /* pointer to variable name */
|
||
unsigned char *value; /* pointer to variable value */
|
||
int export; /* 1 -> export with default list of variables */
|
||
int welldefined; /* A well defined variable */
|
||
};
|
||
|
||
struct env_lst envlisthead;
|
||
|
||
struct env_lst *
|
||
env_find(const unsigned char *var)
|
||
{
|
||
struct env_lst *ep;
|
||
|
||
for (ep = envlisthead.next; ep; ep = ep->next) {
|
||
if (strcmp((const char *)ep->var, (const char *)var) == 0)
|
||
return(ep);
|
||
}
|
||
return(NULL);
|
||
}
|
||
|
||
void
|
||
env_init(void)
|
||
{
|
||
extern char **environ;
|
||
char **epp, *cp;
|
||
struct env_lst *ep;
|
||
|
||
for (epp = environ; *epp; epp++) {
|
||
if ((cp = strchr(*epp, '=')) != NULL) {
|
||
*cp = '\0';
|
||
ep = env_define((unsigned char *)*epp,
|
||
(unsigned char *)cp+1);
|
||
ep->export = 0;
|
||
*cp = '=';
|
||
}
|
||
}
|
||
/*
|
||
* Special case for DISPLAY variable. If it is ":0.0" or
|
||
* "unix:0.0", we have to get rid of "unix" and insert our
|
||
* hostname.
|
||
*/
|
||
if ((ep = env_find("DISPLAY"))
|
||
&& ((*ep->value == ':')
|
||
|| (strncmp((char *)ep->value, "unix:", 5) == 0))) {
|
||
char hbuf[MAXHOSTNAMELEN + 1];
|
||
char *cp2 = strchr((char *)ep->value, ':');
|
||
|
||
gethostname(hbuf, sizeof hbuf);
|
||
hbuf[sizeof(hbuf) - 1] = '\0';
|
||
cp = (char *)malloc(strlen(hbuf) + strlen(cp2) + 1);
|
||
sprintf((char *)cp, "%s%s", hbuf, cp2);
|
||
free(ep->value);
|
||
ep->value = (unsigned char *)cp;
|
||
}
|
||
/*
|
||
* If USER is not defined, but LOGNAME is, then add
|
||
* USER with the value from LOGNAME. By default, we
|
||
* don't export the USER variable.
|
||
*/
|
||
if ((env_find("USER") == NULL) && (ep = env_find("LOGNAME"))) {
|
||
env_define((const unsigned char *)"USER", ep->value);
|
||
env_unexport((const unsigned char *)"USER", NULL);
|
||
}
|
||
env_export((const unsigned char *)"DISPLAY", NULL);
|
||
env_export((const unsigned char *)"PRINTER", NULL);
|
||
}
|
||
|
||
struct env_lst *
|
||
env_define(const unsigned char *var, unsigned char *value)
|
||
{
|
||
struct env_lst *ep;
|
||
|
||
if ((ep = env_find(var)) != NULL) {
|
||
if (ep->var)
|
||
free(ep->var);
|
||
if (ep->value)
|
||
free(ep->value);
|
||
} else {
|
||
ep = (struct env_lst *)malloc(sizeof(struct env_lst));
|
||
ep->next = envlisthead.next;
|
||
envlisthead.next = ep;
|
||
ep->prev = &envlisthead;
|
||
if (ep->next)
|
||
ep->next->prev = ep;
|
||
}
|
||
ep->welldefined = opt_welldefined(var);
|
||
ep->export = 1;
|
||
ep->var = (unsigned char *)strdup((const char *)var);
|
||
ep->value = (unsigned char *)strdup((const char *)value);
|
||
return(ep);
|
||
}
|
||
|
||
struct env_lst *
|
||
env_undefine(const unsigned char *var, unsigned char *d)
|
||
{
|
||
struct env_lst *ep;
|
||
|
||
if ((ep = env_find(var)) != NULL) {
|
||
ep->prev->next = ep->next;
|
||
if (ep->next)
|
||
ep->next->prev = ep->prev;
|
||
if (ep->var)
|
||
free(ep->var);
|
||
if (ep->value)
|
||
free(ep->value);
|
||
free(ep);
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
struct env_lst *
|
||
env_export(const unsigned char *var, unsigned char *d)
|
||
{
|
||
struct env_lst *ep;
|
||
|
||
if ((ep = env_find(var)) != NULL)
|
||
ep->export = 1;
|
||
return NULL;
|
||
}
|
||
|
||
struct env_lst *
|
||
env_unexport(const unsigned char *var, unsigned char *d)
|
||
{
|
||
struct env_lst *ep;
|
||
|
||
if ((ep = env_find(var)) != NULL)
|
||
ep->export = 0;
|
||
return NULL;
|
||
}
|
||
|
||
struct env_lst *
|
||
env_send(const unsigned char *var, unsigned char *d)
|
||
{
|
||
struct env_lst *ep;
|
||
|
||
if (my_state_is_wont(TELOPT_NEW_ENVIRON)
|
||
#ifdef OLD_ENVIRON
|
||
&& my_state_is_wont(TELOPT_OLD_ENVIRON)
|
||
#endif
|
||
) {
|
||
fprintf(stderr,
|
||
"Cannot send '%s': Telnet ENVIRON option not enabled\n",
|
||
var);
|
||
return NULL;
|
||
}
|
||
ep = env_find(var);
|
||
if (ep == 0) {
|
||
fprintf(stderr, "Cannot send '%s': variable not defined\n",
|
||
var);
|
||
return NULL;
|
||
}
|
||
env_opt_start_info();
|
||
env_opt_add(ep->var);
|
||
env_opt_end(0);
|
||
return NULL;
|
||
}
|
||
|
||
struct env_lst *
|
||
env_list(const unsigned char *d1, unsigned char *d2)
|
||
{
|
||
struct env_lst *ep;
|
||
|
||
for (ep = envlisthead.next; ep; ep = ep->next) {
|
||
printf("%c %-20s %s\n", ep->export ? '*' : ' ',
|
||
ep->var, ep->value);
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
unsigned char *
|
||
env_default(int init, int welldefined)
|
||
{
|
||
static struct env_lst *nep = NULL;
|
||
|
||
if (init) {
|
||
nep = &envlisthead;
|
||
return NULL;
|
||
}
|
||
if (nep) {
|
||
while ((nep = nep->next) != NULL) {
|
||
if (nep->export && (nep->welldefined == welldefined))
|
||
return(nep->var);
|
||
}
|
||
}
|
||
return(NULL);
|
||
}
|
||
|
||
unsigned char *
|
||
env_getvalue(const unsigned char *var)
|
||
{
|
||
struct env_lst *ep;
|
||
|
||
if ((ep = env_find(var)) != NULL)
|
||
return(ep->value);
|
||
return(NULL);
|
||
}
|
||
|
||
#if defined(OLD_ENVIRON) && defined(ENV_HACK)
|
||
void
|
||
env_varval(const unsigned char *what)
|
||
{
|
||
extern int old_env_var, old_env_value, env_auto;
|
||
int len = strlen((char *)what);
|
||
|
||
if (len == 0)
|
||
goto unknown;
|
||
|
||
if (strncasecmp((char *)what, "status", len) == 0) {
|
||
if (env_auto)
|
||
printf("%s%s", "VAR and VALUE are/will be ",
|
||
"determined automatically\n");
|
||
if (old_env_var == OLD_ENV_VAR)
|
||
printf("VAR and VALUE set to correct definitions\n");
|
||
else
|
||
printf("VAR and VALUE definitions are reversed\n");
|
||
} else if (strncasecmp((char *)what, "auto", len) == 0) {
|
||
env_auto = 1;
|
||
old_env_var = OLD_ENV_VALUE;
|
||
old_env_value = OLD_ENV_VAR;
|
||
} else if (strncasecmp((char *)what, "right", len) == 0) {
|
||
env_auto = 0;
|
||
old_env_var = OLD_ENV_VAR;
|
||
old_env_value = OLD_ENV_VALUE;
|
||
} else if (strncasecmp((char *)what, "wrong", len) == 0) {
|
||
env_auto = 0;
|
||
old_env_var = OLD_ENV_VALUE;
|
||
old_env_value = OLD_ENV_VAR;
|
||
} else {
|
||
unknown:
|
||
printf("Unknown \"varval\" command. (\"auto\", \"right\", \"wrong\", \"status\")\n");
|
||
}
|
||
}
|
||
#endif
|
||
|
||
#ifdef AUTHENTICATION
|
||
/*
|
||
* The AUTHENTICATE command.
|
||
*/
|
||
|
||
struct authlist {
|
||
const char *name;
|
||
const char *help;
|
||
int (*handler)(char *);
|
||
int narg;
|
||
};
|
||
|
||
struct authlist AuthList[] = {
|
||
{ "status", "Display current status of authentication information",
|
||
auth_status, 0 },
|
||
{ "disable", "Disable an authentication type ('auth disable ?' for more)",
|
||
auth_disable, 1 },
|
||
{ "enable", "Enable an authentication type ('auth enable ?' for more)",
|
||
auth_enable, 1 },
|
||
{ "help", 0, auth_help, 0 },
|
||
{ "?", "Print help information", auth_help, 0 },
|
||
{ .name = 0 },
|
||
};
|
||
|
||
static int
|
||
auth_help(char *s)
|
||
{
|
||
struct authlist *c;
|
||
|
||
for (c = AuthList; c->name; c++) {
|
||
if (c->help) {
|
||
if (*c->help)
|
||
printf("%-15s %s\n", c->name, c->help);
|
||
else
|
||
printf("\n");
|
||
}
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
int
|
||
auth_cmd(int argc, char *argv[])
|
||
{
|
||
struct authlist *c;
|
||
|
||
if (argc < 2) {
|
||
fprintf(stderr,
|
||
"Need an argument to 'auth' command. 'auth ?' for help.\n");
|
||
return 0;
|
||
}
|
||
|
||
c = (struct authlist *)
|
||
genget(argv[1], (char **) AuthList, sizeof(struct authlist));
|
||
if (c == 0) {
|
||
fprintf(stderr, "'%s': unknown argument ('auth ?' for help).\n",
|
||
argv[1]);
|
||
return 0;
|
||
}
|
||
if (Ambiguous(c)) {
|
||
fprintf(stderr, "'%s': ambiguous argument ('auth ?' for help).\n",
|
||
argv[1]);
|
||
return 0;
|
||
}
|
||
if (c->narg + 2 != argc) {
|
||
fprintf(stderr,
|
||
"Need %s%d argument%s to 'auth %s' command. 'auth ?' for help.\n",
|
||
c->narg < argc + 2 ? "only " : "",
|
||
c->narg, c->narg == 1 ? "" : "s", c->name);
|
||
return 0;
|
||
}
|
||
return((*c->handler)(argv[2]));
|
||
}
|
||
#endif
|
||
|
||
#ifdef ENCRYPTION
|
||
/*
|
||
* The ENCRYPT command.
|
||
*/
|
||
|
||
struct encryptlist {
|
||
const char *name;
|
||
const char *help;
|
||
int (*handler)(char *, char *);
|
||
int needconnect;
|
||
int minarg;
|
||
int maxarg;
|
||
};
|
||
|
||
static int
|
||
EncryptHelp(char *, char *);
|
||
typedef int (*encrypthandler)(char *, char *);
|
||
|
||
struct encryptlist EncryptList[] = {
|
||
{ "enable", "Enable encryption. ('encrypt enable ?' for more)",
|
||
EncryptEnable, 1, 1, 2 },
|
||
{ "disable", "Disable encryption. ('encrypt enable ?' for more)",
|
||
EncryptDisable, 0, 1, 2 },
|
||
{ "type", "Set encryption type. ('encrypt type ?' for more)",
|
||
EncryptType, 0, 1, 1 },
|
||
{ "start", "Start encryption. ('encrypt start ?' for more)",
|
||
(encrypthandler) EncryptStart, 1, 0, 1 },
|
||
{ "stop", "Stop encryption. ('encrypt stop ?' for more)",
|
||
(encrypthandler) EncryptStop, 1, 0, 1 },
|
||
{ "input", "Start encrypting the input stream",
|
||
(encrypthandler) EncryptStartInput, 1, 0, 0 },
|
||
{ "-input", "Stop encrypting the input stream",
|
||
(encrypthandler) EncryptStopInput, 1, 0, 0 },
|
||
{ "output", "Start encrypting the output stream",
|
||
(encrypthandler) EncryptStartOutput, 1, 0, 0 },
|
||
{ "-output", "Stop encrypting the output stream",
|
||
(encrypthandler) EncryptStopOutput, 1, 0, 0 },
|
||
|
||
{ "status", "Display current status of authentication information",
|
||
(encrypthandler) EncryptStatus, 0, 0, 0 },
|
||
{ "help", 0, EncryptHelp, 0, 0, 0 },
|
||
{ "?", "Print help information", EncryptHelp, 0, 0, 0 },
|
||
{ .name = 0 },
|
||
};
|
||
|
||
static int
|
||
EncryptHelp(char *s1, char *s2)
|
||
{
|
||
struct encryptlist *c;
|
||
|
||
for (c = EncryptList; c->name; c++) {
|
||
if (c->help) {
|
||
if (*c->help)
|
||
printf("%-15s %s\n", c->name, c->help);
|
||
else
|
||
printf("\n");
|
||
}
|
||
}
|
||
return (0);
|
||
}
|
||
|
||
int
|
||
encrypt_cmd(int argc, char *argv[])
|
||
{
|
||
struct encryptlist *c;
|
||
|
||
if (argc < 2) {
|
||
fprintf(stderr,
|
||
"Need an argument to 'encrypt' command. "
|
||
"'encrypt ?' for help.\n");
|
||
return (0);
|
||
}
|
||
|
||
c = (struct encryptlist *)
|
||
genget(argv[1], (char **) EncryptList, sizeof(struct encryptlist));
|
||
if (c == NULL) {
|
||
fprintf(stderr,
|
||
"'%s': unknown argument ('encrypt ?' for help).\n",
|
||
argv[1]);
|
||
return (0);
|
||
}
|
||
if (Ambiguous(c)) {
|
||
fprintf(stderr,
|
||
"'%s': ambiguous argument ('encrypt ?' for help).\n",
|
||
argv[1]);
|
||
return (0);
|
||
}
|
||
argc -= 2;
|
||
if (argc < c->minarg || argc > c->maxarg) {
|
||
if (c->minarg == c->maxarg) {
|
||
fprintf(stderr, "Need %s%d argument%s ",
|
||
c->minarg < argc ? "only " : "", c->minarg,
|
||
c->minarg == 1 ? "" : "s");
|
||
} else {
|
||
fprintf(stderr, "Need %s%d-%d arguments ",
|
||
c->maxarg < argc ? "only " : "", c->minarg,
|
||
c->maxarg);
|
||
}
|
||
fprintf(stderr,
|
||
"to 'encrypt %s' command. 'encrypt ?' for help.\n",
|
||
c->name);
|
||
return (0);
|
||
}
|
||
if (c->needconnect && !connected) {
|
||
if (!(argc && (isprefix(argv[2], "help") ||
|
||
isprefix(argv[2], "?")))) {
|
||
printf("?Need to be connected first.\n");
|
||
return (0);
|
||
}
|
||
}
|
||
return ((*c->handler)(argv[2], argv[3]));
|
||
}
|
||
#endif /* ENCRYPTION */
|
||
|
||
#ifdef TN3270
|
||
static void
|
||
filestuff(int fd)
|
||
{
|
||
int res;
|
||
|
||
setconnmode(0);
|
||
res = fcntl(fd, F_GETOWN, 0);
|
||
setcommandmode();
|
||
|
||
if (res == -1) {
|
||
perror("fcntl");
|
||
return;
|
||
}
|
||
printf("\tOwner is %d.\n", res);
|
||
|
||
setconnmode(0);
|
||
res = fcntl(fd, F_GETFL, 0);
|
||
setcommandmode();
|
||
|
||
if (res == -1) {
|
||
perror("fcntl");
|
||
return;
|
||
}
|
||
#ifdef notdef
|
||
printf("\tFlags are 0x%x: %s\n", res, decodeflags(res));
|
||
#endif
|
||
}
|
||
#endif /* defined(TN3270) */
|
||
|
||
/*
|
||
* Print status about the connection.
|
||
*/
|
||
/*ARGSUSED*/
|
||
static int
|
||
status(int argc, char *argv[])
|
||
{
|
||
if (connected) {
|
||
printf("Connected to %s.\n", hostname);
|
||
if ((argc < 2) || strcmp(argv[1], "notmuch")) {
|
||
int mode = getconnmode();
|
||
|
||
if (my_want_state_is_will(TELOPT_LINEMODE)) {
|
||
printf("Operating with LINEMODE option\n");
|
||
printf("%s line editing\n", (mode&MODE_EDIT) ? "Local" : "No");
|
||
printf("%s catching of signals\n",
|
||
(mode&MODE_TRAPSIG) ? "Local" : "No");
|
||
slcstate();
|
||
#ifdef KLUDGELINEMODE
|
||
} else if (kludgelinemode && my_want_state_is_dont(TELOPT_SGA)) {
|
||
printf("Operating in obsolete linemode\n");
|
||
#endif
|
||
} else {
|
||
printf("Operating in single character mode\n");
|
||
if (localchars)
|
||
printf("Catching signals locally\n");
|
||
}
|
||
printf("%s character echo\n", (mode&MODE_ECHO) ? "Local" : "Remote");
|
||
if (my_want_state_is_will(TELOPT_LFLOW))
|
||
printf("%s flow control\n", (mode&MODE_FLOW) ? "Local" : "No");
|
||
#ifdef ENCRYPTION
|
||
encrypt_display();
|
||
#endif /* ENCRYPTION */
|
||
}
|
||
} else {
|
||
printf("No connection.\n");
|
||
}
|
||
# ifndef TN3270
|
||
printf("Escape character is '%s'.\n", control(escape));
|
||
(void) fflush(stdout);
|
||
# else /* !defined(TN3270) */
|
||
if ((!In3270) && ((argc < 2) || strcmp(argv[1], "notmuch"))) {
|
||
printf("Escape character is '%s'.\n", control(escape));
|
||
}
|
||
if ((argc >= 2) && !strcmp(argv[1], "everything")) {
|
||
printf("SIGIO received %d time%s.\n",
|
||
sigiocount, (sigiocount == 1)? "":"s");
|
||
if (In3270) {
|
||
printf("Process ID %d, process group %d.\n",
|
||
getpid(), getpgrp());
|
||
printf("Terminal input:\n");
|
||
filestuff(tin);
|
||
printf("Terminal output:\n");
|
||
filestuff(tout);
|
||
printf("Network socket:\n");
|
||
filestuff(net);
|
||
}
|
||
}
|
||
if (In3270 && transcom) {
|
||
printf("Transparent mode command is '%s'.\n", transcom);
|
||
}
|
||
(void) fflush(stdout);
|
||
if (In3270) {
|
||
return 0;
|
||
}
|
||
# endif /* defined(TN3270) */
|
||
return 1;
|
||
}
|
||
|
||
/*
|
||
* Function that gets called when SIGINFO is received.
|
||
*/
|
||
int
|
||
ayt_status(void)
|
||
{
|
||
return call(status, "status", "notmuch", 0);
|
||
}
|
||
|
||
static const char *
|
||
sockaddr_ntop(struct sockaddr *sa)
|
||
{
|
||
static char addrbuf[NI_MAXHOST];
|
||
const int niflags = NI_NUMERICHOST;
|
||
|
||
if (getnameinfo(sa, sa->sa_len, addrbuf, sizeof(addrbuf),
|
||
NULL, 0, niflags) == 0)
|
||
return addrbuf;
|
||
else
|
||
return NULL;
|
||
}
|
||
|
||
#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
|
||
static int setpolicy (int, struct addrinfo *, char *);
|
||
|
||
static int
|
||
setpolicy(int netw, struct addrinfo *res, char *policy)
|
||
{
|
||
char *buf;
|
||
int level;
|
||
int optname;
|
||
|
||
if (policy == NULL)
|
||
return 0;
|
||
|
||
buf = ipsec_set_policy(policy, strlen(policy));
|
||
if (buf == NULL) {
|
||
printf("%s\n", ipsec_strerror());
|
||
return -1;
|
||
}
|
||
level = res->ai_family == AF_INET ? IPPROTO_IP : IPPROTO_IPV6;
|
||
optname = res->ai_family == AF_INET ? IP_IPSEC_POLICY : IPV6_IPSEC_POLICY;
|
||
if (setsockopt(netw, level, optname, buf, ipsec_get_policylen(buf)) < 0){
|
||
perror("setsockopt");
|
||
return -1;
|
||
}
|
||
|
||
free(buf);
|
||
return 0;
|
||
}
|
||
#endif
|
||
|
||
int
|
||
tn(int argc, char *argv[])
|
||
{
|
||
struct addrinfo hints, *res, *res0;
|
||
const char *cause = "telnet: unknown";
|
||
int error;
|
||
#if defined(IP_OPTIONS) && defined(IPPROTO_IP)
|
||
char *srp = 0;
|
||
long srlen;
|
||
int proto, opt;
|
||
#endif
|
||
char *cmd, *hostp = 0;
|
||
const char *portp = 0;
|
||
const char *user = 0;
|
||
|
||
if (connected) {
|
||
printf("?Already connected to %s\n", hostname);
|
||
return 0;
|
||
}
|
||
if (argc < 2) {
|
||
(void) strlcpy(line, "open ", sizeof(line));
|
||
printf("(to) ");
|
||
(void) fgets(&line[strlen(line)], sizeof(line) - strlen(line), stdin);
|
||
makeargv();
|
||
argc = margc;
|
||
argv = margv;
|
||
}
|
||
cmd = *argv;
|
||
--argc; ++argv;
|
||
while (argc) {
|
||
if (strcmp(*argv, "help") == 0 || isprefix(*argv, "?"))
|
||
goto usage;
|
||
if (strcmp(*argv, "-l") == 0) {
|
||
--argc; ++argv;
|
||
if (argc == 0)
|
||
goto usage;
|
||
user = *argv++;
|
||
--argc;
|
||
continue;
|
||
}
|
||
if (strcmp(*argv, "-a") == 0) {
|
||
--argc; ++argv;
|
||
autologin = 1;
|
||
continue;
|
||
}
|
||
if (hostp == 0) {
|
||
hostp = *argv++;
|
||
--argc;
|
||
continue;
|
||
}
|
||
if (portp == 0) {
|
||
portp = *argv++;
|
||
--argc;
|
||
continue;
|
||
}
|
||
usage:
|
||
printf("usage: %s [-l user] [-a] host-name [port]\n", cmd);
|
||
return 0;
|
||
}
|
||
if (hostp == 0)
|
||
goto usage;
|
||
|
||
(void) strlcpy(_hostname, hostp, sizeof(_hostname));
|
||
if (hostp[0] == '@' || hostp[0] == '!') {
|
||
char *p;
|
||
hostname = NULL;
|
||
for (p = hostp + 1; *p; p++) {
|
||
if (*p == ',' || *p == '@')
|
||
hostname = p;
|
||
}
|
||
if (hostname == NULL) {
|
||
fprintf(stderr, "%s: bad source route specification\n", hostp);
|
||
return 0;
|
||
}
|
||
*hostname++ = '\0';
|
||
} else
|
||
hostname = hostp;
|
||
|
||
if (!portp) {
|
||
telnetport = 1;
|
||
portp = "telnet";
|
||
} else if (portp[0] == '-') {
|
||
/* use telnet negotiation if port number/name preceded by minus sign */
|
||
telnetport = 1;
|
||
portp++;
|
||
} else
|
||
telnetport = 0;
|
||
|
||
memset(&hints, 0, sizeof(hints));
|
||
hints.ai_family = family;
|
||
hints.ai_socktype = SOCK_STREAM;
|
||
hints.ai_protocol = 0;
|
||
hints.ai_flags = AI_NUMERICHOST; /* avoid forward lookup */
|
||
error = getaddrinfo(hostname, portp, &hints, &res0);
|
||
if (!error) {
|
||
/* numeric */
|
||
if (doaddrlookup &&
|
||
getnameinfo(res0->ai_addr, res0->ai_addrlen,
|
||
_hostname, sizeof(_hostname), NULL, 0, NI_NAMEREQD) == 0)
|
||
; /* okay */
|
||
else
|
||
strlcpy(_hostname, hostname, sizeof(_hostname));
|
||
} else {
|
||
/* FQDN - try again with forward DNS lookup */
|
||
memset(&hints, 0, sizeof(hints));
|
||
hints.ai_family = family;
|
||
hints.ai_socktype = SOCK_STREAM;
|
||
hints.ai_protocol = 0;
|
||
hints.ai_flags = AI_CANONNAME;
|
||
error = getaddrinfo(hostname, portp, &hints, &res0);
|
||
if (error == EAI_SERVICE) {
|
||
fprintf(stderr, "tcp/%s: unknown service\n", portp);
|
||
return 0;
|
||
} else if (error) {
|
||
fprintf(stderr, "%s: %s\n", hostname, gai_strerror(error));
|
||
return 0;
|
||
}
|
||
if (res0->ai_canonname)
|
||
(void)strlcpy(_hostname, res0->ai_canonname, sizeof(_hostname));
|
||
else
|
||
(void)strlcpy(_hostname, hostname, sizeof(_hostname));
|
||
}
|
||
hostname = _hostname;
|
||
|
||
net = -1;
|
||
for (res = res0; res; res = res->ai_next) {
|
||
printf("Trying %s...\n", sockaddr_ntop(res->ai_addr));
|
||
net = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
|
||
if (net < 0) {
|
||
cause = "telnet: socket";
|
||
continue;
|
||
}
|
||
|
||
if (telnet_debug && SetSockOpt(net, SOL_SOCKET, SO_DEBUG, 1) < 0) {
|
||
perror("setsockopt (SO_DEBUG)");
|
||
}
|
||
if (hostp[0] == '@' || hostp[0] == '!') {
|
||
if ((srlen = sourceroute(res, hostp, &srp, &proto, &opt)) < 0) {
|
||
(void) NetClose(net);
|
||
net = -1;
|
||
continue;
|
||
}
|
||
if (srp && setsockopt(net, proto, opt, srp, srlen) < 0)
|
||
perror("setsockopt (source route)");
|
||
}
|
||
|
||
#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
|
||
if (setpolicy(net, res, ipsec_policy_in) < 0) {
|
||
(void) NetClose(net);
|
||
net = -1;
|
||
continue;
|
||
}
|
||
if (setpolicy(net, res, ipsec_policy_out) < 0) {
|
||
(void) NetClose(net);
|
||
net = -1;
|
||
continue;
|
||
}
|
||
#endif
|
||
|
||
if (connect(net, res->ai_addr, res->ai_addrlen) < 0) {
|
||
if (res->ai_next) {
|
||
int oerrno = errno;
|
||
|
||
fprintf(stderr, "telnet: connect to address %s: ",
|
||
sockaddr_ntop(res->ai_addr));
|
||
errno = oerrno;
|
||
perror((char *)0);
|
||
}
|
||
cause = "telnet: Unable to connect to remote host";
|
||
(void) NetClose(net);
|
||
net = -1;
|
||
continue;
|
||
}
|
||
|
||
connected++;
|
||
#if defined(AUTHENTICATION) || defined(ENCRYPTION)
|
||
auth_encrypt_connect(connected);
|
||
#endif /* defined(AUTHENTICATION) || defined(ENCRYPTION) */
|
||
break;
|
||
}
|
||
freeaddrinfo(res0);
|
||
if (net < 0 || connected == 0) {
|
||
perror(cause);
|
||
return 0;
|
||
}
|
||
|
||
cmdrc(hostp, hostname);
|
||
if (autologin && user == NULL) {
|
||
struct passwd *pw;
|
||
|
||
user = getenv("USER");
|
||
if (user == NULL ||
|
||
((pw = getpwnam(user)) && pw->pw_uid != getuid())) {
|
||
if ((pw = getpwuid(getuid())) != NULL)
|
||
user = pw->pw_name;
|
||
else
|
||
user = NULL;
|
||
}
|
||
}
|
||
if (user) {
|
||
env_define((const unsigned char *)"USER", __UNCONST(user));
|
||
env_export((const unsigned char *)"USER", NULL);
|
||
}
|
||
(void) call(status, "status", "notmuch", 0);
|
||
telnet(user);
|
||
(void) NetClose(net);
|
||
ExitString("Connection closed by foreign host.\n",1);
|
||
/*NOTREACHED*/
|
||
}
|
||
|
||
#define HELPINDENT ((int)sizeof ("connect"))
|
||
|
||
static char
|
||
openhelp[] = "connect to a site",
|
||
closehelp[] = "close current connection",
|
||
logouthelp[] = "forcibly logout remote user and close the connection",
|
||
quithelp[] = "exit telnet",
|
||
statushelp[] = "print status information",
|
||
helphelp[] = "print help information",
|
||
sendhelp[] = "transmit special characters ('send ?' for more)",
|
||
sethelp[] = "set operating parameters ('set ?' for more)",
|
||
unsethelp[] = "unset operating parameters ('unset ?' for more)",
|
||
togglestring[] ="toggle operating parameters ('toggle ?' for more)",
|
||
slchelp[] = "change state of special characters ('slc ?' for more)",
|
||
displayhelp[] = "display operating parameters",
|
||
#ifdef TN3270
|
||
transcomhelp[] = "specify Unix command for transparent mode pipe",
|
||
#endif /* defined(TN3270) */
|
||
#ifdef AUTHENTICATION
|
||
authhelp[] = "turn on (off) authentication ('auth ?' for more)",
|
||
#endif
|
||
#ifdef ENCRYPTION
|
||
encrypthelp[] = "turn on (off) encryption ('encrypt ?' for more)",
|
||
#endif /* ENCRYPTION */
|
||
zhelp[] = "suspend telnet",
|
||
shellhelp[] = "invoke a subshell",
|
||
envhelp[] = "change environment variables ('environ ?' for more)",
|
||
modestring[] = "try to enter line or character mode ('mode ?' for more)";
|
||
|
||
static Command cmdtab[] = {
|
||
{ "close", closehelp, bye, 1 },
|
||
{ "logout", logouthelp, logout, 1 },
|
||
{ "display", displayhelp, display, 0 },
|
||
{ "mode", modestring, modecmd, 0 },
|
||
{ "open", openhelp, tn, 0 },
|
||
{ "quit", quithelp, quit, 0 },
|
||
{ "send", sendhelp, sendcmd, 0 },
|
||
{ "set", sethelp, setcmd, 0 },
|
||
{ "unset", unsethelp, unsetcmd, 0 },
|
||
{ "status", statushelp, status, 0 },
|
||
{ "toggle", togglestring, toggle, 0 },
|
||
{ "slc", slchelp, slccmd, 0 },
|
||
#ifdef TN3270
|
||
{ "transcom", transcomhelp, settranscom, 0 },
|
||
#endif /* defined(TN3270) */
|
||
#ifdef AUTHENTICATION
|
||
{ "auth", authhelp, auth_cmd, 0 },
|
||
#endif
|
||
#ifdef ENCRYPTION
|
||
{ "encrypt", encrypthelp, encrypt_cmd, 0 },
|
||
#endif
|
||
{ "z", zhelp, suspend, 0 },
|
||
#ifdef TN3270
|
||
{ "!", shellhelp, shell, 1 },
|
||
#else
|
||
{ "!", shellhelp, shell, 0 },
|
||
#endif
|
||
{ "environ", envhelp, env_cmd, 0 },
|
||
{ "?", helphelp, help, 0 },
|
||
{ NULL, NULL, NULL, 0 }
|
||
};
|
||
|
||
static char crmodhelp[] = "deprecated command -- use 'toggle crmod' instead";
|
||
static char escapehelp[] = "deprecated command -- use 'set escape' instead";
|
||
|
||
static Command cmdtab2[] = {
|
||
{ "help", 0, help, 0 },
|
||
{ "escape", escapehelp, setescape, 0 },
|
||
{ "crmod", crmodhelp, togcrmod, 0 },
|
||
{ NULL, NULL, NULL, 0 }
|
||
};
|
||
|
||
|
||
/*
|
||
* Call routine with argc, argv set from args (terminated by 0).
|
||
*/
|
||
|
||
/*VARARGS1*/
|
||
static int
|
||
call(intrtn_t routine, ...)
|
||
{
|
||
va_list ap;
|
||
char *args[100];
|
||
int argno = 0;
|
||
|
||
va_start(ap, routine);
|
||
while ((args[argno++] = va_arg(ap, char *)) != 0) {
|
||
;
|
||
}
|
||
va_end(ap);
|
||
return (*routine)(argno-1, args);
|
||
}
|
||
|
||
|
||
static Command *
|
||
getcmd(char *name)
|
||
{
|
||
Command *cm;
|
||
|
||
if ((cm = (Command *) genget(name, (char **) cmdtab, sizeof(Command))) != NULL)
|
||
return cm;
|
||
return (Command *) genget(name, (char **) cmdtab2, sizeof(Command));
|
||
}
|
||
|
||
void
|
||
command(int top, const char *tbuf, int cnt)
|
||
{
|
||
Command *c;
|
||
|
||
setcommandmode();
|
||
if (!top) {
|
||
putchar('\n');
|
||
} else {
|
||
(void) signal(SIGINT, SIG_DFL);
|
||
(void) signal(SIGQUIT, SIG_DFL);
|
||
}
|
||
for (;;) {
|
||
if (rlogin == _POSIX_VDISABLE)
|
||
printf("%s> ", prompt);
|
||
if (tbuf) {
|
||
char *cp;
|
||
cp = line;
|
||
while (cnt > 0 && (*cp++ = *tbuf++) != '\n')
|
||
cnt--;
|
||
tbuf = 0;
|
||
if (cp == line || *--cp != '\n' || cp == line)
|
||
goto getline;
|
||
*cp = '\0';
|
||
if (rlogin == _POSIX_VDISABLE)
|
||
printf("%s\n", line);
|
||
} else {
|
||
getline:
|
||
if (rlogin != _POSIX_VDISABLE)
|
||
printf("%s> ", prompt);
|
||
#ifdef TN3270
|
||
fflush(stdout);
|
||
#endif
|
||
if (fgets(line, sizeof(line), stdin) == NULL) {
|
||
if (feof(stdin) || ferror(stdin)) {
|
||
(void) quit(0, NULL);
|
||
/*NOTREACHED*/
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
if (line[0] == 0)
|
||
break;
|
||
makeargv();
|
||
if (margv[0] == 0) {
|
||
break;
|
||
}
|
||
c = getcmd(margv[0]);
|
||
if (Ambiguous(c)) {
|
||
printf("?Ambiguous command\n");
|
||
continue;
|
||
}
|
||
if (c == 0) {
|
||
printf("?Invalid command\n");
|
||
continue;
|
||
}
|
||
if (c->needconnect && !connected) {
|
||
printf("?Need to be connected first.\n");
|
||
continue;
|
||
}
|
||
if ((*c->handler)(margc, margv)) {
|
||
break;
|
||
}
|
||
}
|
||
if (!top) {
|
||
if (!connected) {
|
||
longjmp(toplevel, 1);
|
||
/*NOTREACHED*/
|
||
}
|
||
#ifdef TN3270
|
||
if (shell_active == 0) {
|
||
setconnmode(0);
|
||
}
|
||
#else /* defined(TN3270) */
|
||
setconnmode(0);
|
||
#endif /* defined(TN3270) */
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Help command.
|
||
*/
|
||
static int
|
||
help(int argc, char *argv[])
|
||
{
|
||
Command *c;
|
||
|
||
if (argc == 1) {
|
||
printf("Commands may be abbreviated. Commands are:\n\n");
|
||
for (c = cmdtab; c->name; c++)
|
||
if (c->help) {
|
||
printf("%-*s\t%s\n", HELPINDENT, c->name,
|
||
c->help);
|
||
}
|
||
return 0;
|
||
}
|
||
while (--argc > 0) {
|
||
char *arg;
|
||
arg = *++argv;
|
||
c = getcmd(arg);
|
||
if (Ambiguous(c))
|
||
printf("?Ambiguous help command %s\n", arg);
|
||
else if (c == (Command *)0)
|
||
printf("?Invalid help command %s\n", arg);
|
||
else
|
||
printf("%s\n", c->help);
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
static char *rcname = 0;
|
||
static char rcbuf[128];
|
||
|
||
void
|
||
cmdrc(const char *m1, const char *m2)
|
||
{
|
||
Command *c;
|
||
FILE *rcfile;
|
||
int gotmachine = 0;
|
||
int l1 = strlen(m1);
|
||
int l2 = strlen(m2);
|
||
char m1save[MAXHOSTNAMELEN + 1];
|
||
|
||
if (skiprc)
|
||
return;
|
||
|
||
strlcpy(m1save, m1, sizeof(m1save));
|
||
m1 = m1save;
|
||
|
||
if (rcname == 0) {
|
||
rcname = getenv("HOME");
|
||
if (rcname)
|
||
strlcpy(rcbuf, rcname, sizeof(rcbuf));
|
||
else
|
||
rcbuf[0] = '\0';
|
||
strlcat(rcbuf, "/.telnetrc", sizeof(rcbuf));
|
||
rcname = rcbuf;
|
||
}
|
||
|
||
if ((rcfile = fopen(rcname, "r")) == 0) {
|
||
return;
|
||
}
|
||
|
||
for (;;) {
|
||
if (fgets(line, sizeof(line), rcfile) == NULL)
|
||
break;
|
||
if (line[0] == 0)
|
||
break;
|
||
if (line[0] == '#')
|
||
continue;
|
||
if (gotmachine) {
|
||
if (!isspace((unsigned char)line[0]))
|
||
gotmachine = 0;
|
||
}
|
||
if (gotmachine == 0) {
|
||
if (isspace((unsigned char)line[0]))
|
||
continue;
|
||
if (strncasecmp(line, m1, l1) == 0)
|
||
strncpy(line, &line[l1], sizeof(line) - l1);
|
||
else if (strncasecmp(line, m2, l2) == 0)
|
||
strncpy(line, &line[l2], sizeof(line) - l2);
|
||
else if (strncasecmp(line, "DEFAULT", 7) == 0)
|
||
strncpy(line, &line[7], sizeof(line) - 7);
|
||
else
|
||
continue;
|
||
if (line[0] != ' ' && line[0] != '\t' && line[0] != '\n')
|
||
continue;
|
||
gotmachine = 1;
|
||
}
|
||
makeargv();
|
||
if (margv[0] == 0)
|
||
continue;
|
||
c = getcmd(margv[0]);
|
||
if (Ambiguous(c)) {
|
||
printf("?Ambiguous command: %s\n", margv[0]);
|
||
continue;
|
||
}
|
||
if (c == 0) {
|
||
printf("?Invalid command: %s\n", margv[0]);
|
||
continue;
|
||
}
|
||
/*
|
||
* This should never happen...
|
||
*/
|
||
if (c->needconnect && !connected) {
|
||
printf("?Need to be connected first for %s.\n", margv[0]);
|
||
continue;
|
||
}
|
||
(*c->handler)(margc, margv);
|
||
}
|
||
fclose(rcfile);
|
||
}
|
||
|
||
/*
|
||
* Source route is handed in as
|
||
* [!]@hop1@hop2...@dst
|
||
*
|
||
* If the leading ! is present, it is a strict source route, otherwise it is
|
||
* assmed to be a loose source route. Note that leading ! is effective
|
||
* only for IPv4 case.
|
||
*
|
||
* We fill in the source route option as
|
||
* hop1,hop2,hop3...dest
|
||
* and return a pointer to hop1, which will
|
||
* be the address to connect() to.
|
||
*
|
||
* Arguments:
|
||
* ai: The address (by struct addrinfo) for the final destination.
|
||
*
|
||
* arg: Pointer to route list to decipher
|
||
*
|
||
* cpp: Pointer to a pointer, so that sourceroute() can return
|
||
* the address of result buffer (statically alloc'ed).
|
||
*
|
||
* protop/optp:
|
||
* Pointer to an integer. The pointed variable
|
||
* lenp: pointer to an integer that contains the
|
||
* length of *cpp if *cpp != NULL.
|
||
*
|
||
* Return values:
|
||
*
|
||
* Returns the length of the option pointed to by *cpp. If the
|
||
* return value is -1, there was a syntax error in the
|
||
* option, either arg contained unknown characters or too many hosts,
|
||
* or hostname cannot be resolved.
|
||
*
|
||
* The caller needs to pass return value (len), *cpp, *protop and *optp
|
||
* to setsockopt(2).
|
||
*
|
||
* *cpp: Points to the result buffer. The region is statically
|
||
* allocated by the function.
|
||
*
|
||
* *protop:
|
||
* protocol # to be passed to setsockopt(2).
|
||
*
|
||
* *optp: option # to be passed to setsockopt(2).
|
||
*
|
||
*/
|
||
int
|
||
sourceroute(struct addrinfo *ai, char *arg, char **cpp, int *protop, int *optp)
|
||
{
|
||
char *cp, *cp2, *lsrp, *lsrep;
|
||
struct addrinfo hints, *res;
|
||
int len, error;
|
||
struct sockaddr_in *sin;
|
||
char c;
|
||
static char lsr[44];
|
||
#ifdef INET6
|
||
struct cmsghdr *cmsg;
|
||
struct sockaddr_in6 *sin6;
|
||
static char rhbuf[1024];
|
||
#endif
|
||
|
||
/*
|
||
* Verify the arguments.
|
||
*/
|
||
if (cpp == NULL)
|
||
return -1;
|
||
|
||
cp = arg;
|
||
|
||
*cpp = NULL;
|
||
|
||
/* init these just in case.... */
|
||
lsrp = NULL;
|
||
lsrep = NULL;
|
||
#ifdef INET6
|
||
cmsg = NULL;
|
||
#endif
|
||
|
||
switch (ai->ai_family) {
|
||
case AF_INET:
|
||
lsrp = lsr;
|
||
lsrep = lsrp + sizeof(lsr);
|
||
|
||
/*
|
||
* Next, decide whether we have a loose source
|
||
* route or a strict source route, and fill in
|
||
* the begining of the option.
|
||
*/
|
||
if (*cp == '!') {
|
||
cp++;
|
||
*lsrp++ = IPOPT_SSRR;
|
||
} else
|
||
*lsrp++ = IPOPT_LSRR;
|
||
if (*cp != '@')
|
||
return -1;
|
||
lsrp++; /* skip over length, we'll fill it in later */
|
||
*lsrp++ = 4;
|
||
cp++;
|
||
*protop = IPPROTO_IP;
|
||
*optp = IP_OPTIONS;
|
||
break;
|
||
#ifdef INET6
|
||
case AF_INET6:
|
||
#ifdef IPV6_PKTOPTIONS
|
||
/* RFC2292 */
|
||
cmsg = inet6_rthdr_init(rhbuf, IPV6_RTHDR_TYPE_0);
|
||
if (*cp != '@')
|
||
return -1;
|
||
cp++;
|
||
*protop = IPPROTO_IPV6;
|
||
*optp = IPV6_PKTOPTIONS;
|
||
break;
|
||
#else
|
||
/* no RFC2292 */
|
||
return -1;
|
||
#endif
|
||
#endif
|
||
default:
|
||
return -1;
|
||
}
|
||
|
||
memset(&hints, 0, sizeof(hints));
|
||
hints.ai_family = ai->ai_family;
|
||
hints.ai_socktype = SOCK_STREAM;
|
||
|
||
for (c = 0;;) {
|
||
if (c == ':')
|
||
cp2 = 0;
|
||
else for (cp2 = cp; (c = *cp2) != '\0'; cp2++) {
|
||
if (c == ',') {
|
||
*cp2++ = '\0';
|
||
if (*cp2 == '@')
|
||
cp2++;
|
||
} else if (c == '@') {
|
||
*cp2++ = '\0';
|
||
}
|
||
#if 0 /*colon conflicts with IPv6 address*/
|
||
else if (c == ':') {
|
||
*cp2++ = '\0';
|
||
}
|
||
#endif
|
||
else
|
||
continue;
|
||
break;
|
||
}
|
||
if (!c)
|
||
cp2 = 0;
|
||
|
||
error = getaddrinfo(cp, NULL, &hints, &res);
|
||
if (error) {
|
||
fprintf(stderr, "%s: %s\n", cp, gai_strerror(error));
|
||
return -1;
|
||
}
|
||
if (ai->ai_family != res->ai_family) {
|
||
freeaddrinfo(res);
|
||
return -1;
|
||
}
|
||
if (ai->ai_family == AF_INET) {
|
||
/*
|
||
* Check to make sure there is space for address
|
||
*/
|
||
if (lsrp + 4 > lsrep) {
|
||
freeaddrinfo(res);
|
||
return -1;
|
||
}
|
||
sin = (struct sockaddr_in *)res->ai_addr;
|
||
memcpy(lsrp, &sin->sin_addr, sizeof(struct in_addr));
|
||
lsrp += sizeof(struct in_addr);
|
||
}
|
||
#ifdef INET6
|
||
else if (ai->ai_family == AF_INET6) {
|
||
sin6 = (struct sockaddr_in6 *)res->ai_addr;
|
||
inet6_rthdr_add(cmsg, &sin6->sin6_addr,
|
||
IPV6_RTHDR_LOOSE);
|
||
}
|
||
#endif
|
||
else {
|
||
freeaddrinfo(res);
|
||
return -1;
|
||
}
|
||
freeaddrinfo(res);
|
||
if (cp2)
|
||
cp = cp2;
|
||
else
|
||
break;
|
||
}
|
||
switch (ai->ai_family) {
|
||
case AF_INET:
|
||
/* record the last hop */
|
||
if (lsrp + 4 > lsrep)
|
||
return -1;
|
||
sin = (struct sockaddr_in *)ai->ai_addr;
|
||
memcpy(lsrp, &sin->sin_addr, sizeof(struct in_addr));
|
||
lsrp += sizeof(struct in_addr);
|
||
lsr[IPOPT_OLEN] = lsrp - lsr;
|
||
if (lsr[IPOPT_OLEN] <= 7 || lsr[IPOPT_OLEN] > 40)
|
||
return -1;
|
||
*lsrp++ = IPOPT_NOP; /*32bit word align*/
|
||
len = lsrp - lsr;
|
||
*cpp = lsr;
|
||
break;
|
||
#ifdef INET6
|
||
case AF_INET6:
|
||
inet6_rthdr_lasthop(cmsg, IPV6_RTHDR_LOOSE);
|
||
len = cmsg->cmsg_len;
|
||
*cpp = rhbuf;
|
||
break;
|
||
#endif
|
||
default:
|
||
return -1;
|
||
}
|
||
return len;
|
||
}
|