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authorTheodore Tso <tytso@mit.edu>1993-12-18 03:04:55 +0000
committerTheodore Tso <tytso@mit.edu>1993-12-18 03:04:55 +0000
commitbb08b522cb5381f36cb012220a1ecb47d75dee10 (patch)
treea2d2e9c52581dfce892e67bb84c2f6f617060d1b /src/lib/gssapi/sample/flogin.c
parent270eeea2b75c2622591882343e65e4c40d931bcf (diff)
Removing old gssapi implementation
git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@3204 dc483132-0cff-0310-8789-dd5450dbe970
Diffstat (limited to 'src/lib/gssapi/sample/flogin.c')
-rw-r--r--src/lib/gssapi/sample/flogin.c729
1 files changed, 0 insertions, 729 deletions
diff --git a/src/lib/gssapi/sample/flogin.c b/src/lib/gssapi/sample/flogin.c
deleted file mode 100644
index 0fc70195ef..0000000000
--- a/src/lib/gssapi/sample/flogin.c
+++ /dev/null
@@ -1,729 +0,0 @@
-/*
- * Copyright (c) 1983, 1990 The Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted provided
- * that: (1) source distributions retain this entire copyright notice and
- * comment, and (2) distributions including binaries display the following
- * acknowledgement: ``This product includes software developed by the
- * University of California, Berkeley and its contributors'' in the
- * documentation or other materials provided with the distribution and in
- * all advertising materials mentioning features or use of this software.
- * 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.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
-#ifndef lint
-char copyright[] =
-"@(#) Copyright (c) 1983, 1990 The Regents of the University of California.\n\
- All rights reserved.\n";
-#endif /* not lint */
-
-#ifndef lint
-static char sccsid[] = "@(#)rlogin.c 5.29 (Berkeley) 6/27/90";
-#endif /* not lint */
-
-/*
- * $Source$
- * $Header: mit/rlogin/RCS/rlogin.c,v 5.2 89/07/26 12:11:21 kfall
- * Exp Locker: kfall $
- */
-
-/*
- * 2-14-91 ka
- * Modified sources to add SPX strong authentication, called flogin.c
- *
- * 5-24-91 ka
- * Modified sources to remove SPX and Kerberos specific authentication.
- * Replaced with GSS API
- *
- */
-
-/*
- * rlogin - remote login
- */
-#include <sys/param.h>
-#include <sys/file.h>
-#include <sys/socket.h>
-#include <sys/signal.h>
-#include <sys/time.h>
-#include <sys/resource.h>
-#include <sys/wait.h>
-
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <netdb.h>
-
-#include <sgtty.h>
-#include <setjmp.h>
-#include <errno.h>
-#include <pwd.h>
-#include <stdio.h>
-#ifdef ultrix
-#include <unistd.h>
-#endif
-#include <string.h>
-
-#include "gssapi_defs.h"
-
-#ifndef STDIN_FILENO
-#define STDIN_FILENO 0 /* standard in */
-#endif
-
-#define FLOGIN_PORT 221
-
-#ifndef TIOCPKT_WINDOW
-#define TIOCPKT_WINDOW 0x80
-#endif
-
-/* concession to Sun */
-#ifndef SIGUSR1
-#define SIGUSR1 30
-#endif
-
-extern int errno;
-int eight, litout, rem;
-char cmdchar;
-char *speeds[] = {
- "0", "50", "75", "110", "134", "150", "200", "300", "600", "1200",
- "1800", "2400", "4800", "9600", "19200", "38400"
-};
-
-#ifdef sun
-struct winsize {
- unsigned short ws_row, ws_col;
- unsigned short ws_xpixel, ws_ypixel;
-};
-#endif
-struct winsize winsize;
-
-#ifndef sun
-#define get_window_size(fd, wp) ioctl(fd, TIOCGWINSZ, wp)
-#endif
-
-main(argc, argv)
- int argc;
- char **argv;
-{
- extern char *optarg;
- extern int optind;
- struct passwd *pw;
- struct servent *sp;
- struct sgttyb ttyb;
- long omask;
- int argoff, ch, dflag, one, uid;
- char *host, *p, *user, term[1024];
- void lostpeer();
- char *getenv();
- int mutual_flag = 1, deleg_flag = 1, sock = 0;
- int debugflag = 0;
- gss_cred_id_t context_handle;
-
- argoff = dflag = 0;
- one = 1;
- host = user = NULL;
- cmdchar = '~';
-
- if (p = rindex(argv[0], '/'))
- ++p;
- else
- p = argv[0];
-
- /* handle "flogin host flags" */
- if (!host && argc > 2 && argv[1][0] != '-') {
- host = argv[1];
- argoff = 1;
- }
-
-#define OPTIONS "8Lde:l:vn"
-
- while ((ch = getopt(argc - argoff, argv + argoff, OPTIONS)) != EOF)
- switch(ch) {
- case '8':
- eight = 1;
- break;
- case 'L':
- litout = 1;
- break;
- case 'd':
- dflag = 1;
- break;
- case 'e':
- cmdchar = optarg[0];
- break;
- case 'l':
- user = optarg;
- break;
- case 'v':
- debugflag = 1;
- break;
- case 'n':
- deleg_flag = 0;
- break;
- case '?':
- default:
- usage();
- }
- optind += argoff;
- argc -= optind;
- argv += optind;
-
- /* if haven't gotten a host yet, do so */
- if (!host && !(host = *argv++))
- usage();
-
- if (*argv)
- usage();
-
- if (!(pw = getpwuid(uid = getuid()))) {
- (void)fprintf(stderr, "flogin: unknown user id.\n");
- exit(1);
- }
- if (!user)
- user = pw->pw_name;
-
- sp = NULL;
-
- /*
- * if remote login to root account, force no delegation
- */
- if (strcmp(user, "root")==0) deleg_flag=0;
- sp = getservbyname("flogin", "tcp");
- if (sp == NULL) {
- sp = (struct servent *) malloc(sizeof(struct servent));
- sp->s_port = htons(FLOGIN_PORT);
- }
-
- if (sp == NULL)
- sp = getservbyname("login", "tcp");
- if (sp == NULL) {
- (void)fprintf(stderr, "rlogin: login/tcp: unknown service.\n");
- exit(1);
- }
-
- (void)strcpy(term, (p = getenv("TERM")) ? p : "network");
- if (ioctl(0, TIOCGETP, &ttyb) == 0) {
- (void)strcat(term, "/");
- (void)strcat(term, speeds[ttyb.sg_ospeed]);
- }
-
- (void)get_window_size(0, &winsize);
-
- (void)signal(SIGPIPE, lostpeer);
- /* will use SIGUSR1 for window size hack, so hold it off */
- omask = sigblock(sigmask(SIGURG) | sigmask(SIGUSR1));
-
- rem = fcmd(&sock, &host, sp->s_port, pw->pw_name,
- user, term, 0, host, &context_handle,
- mutual_flag, deleg_flag, debugflag);
-
- if (rem < 0)
- exit(1);
-
- if (dflag &&
- setsockopt(rem, SOL_SOCKET, SO_DEBUG, &one, sizeof(one)) < 0)
- (void)fprintf(stderr, "flogin: setsockopt: errno %d.\n",
- errno);
-
- (void)setuid(uid);
- doit(omask);
- /*NOTREACHED*/
-}
-
-int child, defflags, deflflags, tabflag;
-char deferase, defkill;
-struct tchars deftc;
-struct ltchars defltc;
-struct tchars notc = { -1, -1, -1, -1, -1, -1 };
-struct ltchars noltc = { -1, -1, -1, -1, -1, -1 };
-
-doit(omask)
- long omask;
-{
- struct sgttyb sb;
- void catch_child(), copytochild(), exit(), writeroob();
-
- (void)ioctl(0, TIOCGETP, (char *)&sb);
- defflags = sb.sg_flags;
- tabflag = defflags & TBDELAY;
- defflags &= ECHO | CRMOD;
- deferase = sb.sg_erase;
- defkill = sb.sg_kill;
- (void)ioctl(0, TIOCLGET, (char *)&deflflags);
- (void)ioctl(0, TIOCGETC, (char *)&deftc);
- notc.t_startc = deftc.t_startc;
- notc.t_stopc = deftc.t_stopc;
- (void)ioctl(0, TIOCGLTC, (char *)&defltc);
- (void)signal(SIGINT, SIG_IGN);
- setsignal(SIGHUP, exit);
- setsignal(SIGQUIT, exit);
- child = fork();
- if (child == -1) {
- (void)fprintf(stderr, "rlogin: fork: errno %d.\n", errno);
- done(1);
- }
- if (child == 0) {
- mode(1);
- if (reader(omask) == 0) {
- msg("connection closed.");
- exit(0);
- }
- sleep(1);
- msg("\007connection closed.");
- exit(1);
- }
-
- /*
- * We may still own the socket, and may have a pending SIGURG (or might
- * receive one soon) that we really want to send to the reader. Set a
- * trap that simply copies such signals to the child.
- */
- (void)signal(SIGURG, copytochild);
- (void)signal(SIGUSR1, writeroob);
- (void)sigsetmask(omask);
- (void)signal(SIGCHLD, catch_child);
- writer();
- msg("closed connection.");
- done(0);
-}
-
-/* trap a signal, unless it is being ignored. */
-setsignal(sig, act)
- int sig;
- void (*act)();
-{
- int omask = sigblock(sigmask(sig));
-
- if (signal(sig, act) == SIG_IGN)
- (void)signal(sig, SIG_IGN);
- (void)sigsetmask(omask);
-}
-
-done(status)
- int status;
-{
- int w;
-
- mode(0);
- if (child > 0) {
- /* make sure catch_child does not snap it up */
- (void)signal(SIGCHLD, SIG_DFL);
- if (kill(child, SIGKILL) >= 0)
- while ((w = wait((union wait *)0)) > 0 && w != child);
- }
- exit(status);
-}
-
-int dosigwinch;
-
-/*
- * This is called when the reader process gets the out-of-band (urgent)
- * request to turn on the window-changing protocol.
- */
-void
-writeroob()
-{
- void sigwinch();
-
- if (dosigwinch == 0) {
- sendwindow();
- (void)signal(SIGWINCH, sigwinch);
- }
- dosigwinch = 1;
-}
-
-void
-catch_child()
-{
- union wait status;
- int pid;
-
- for (;;) {
- pid = wait3(&status, WNOHANG|WUNTRACED, (struct rusage *)0);
- if (pid == 0)
- return;
- /* if the child (reader) dies, just quit */
- if (pid < 0 || pid == child && !WIFSTOPPED(status))
- done((int)(status.w_termsig | status.w_retcode));
- }
- /* NOTREACHED */
-}
-
-/*
- * writer: write to remote: 0 -> line.
- * ~. terminate
- * ~^Z suspend rlogin process.
- * ~^Y suspend rlogin process, but leave reader alone.
- */
-writer()
-{
- char c;
- register int bol, local, n;
-
- bol = 1; /* beginning of line */
- local = 0;
- for (;;) {
- n = read(STDIN_FILENO, &c, 1);
- if (n <= 0) {
- if (n < 0 && errno == EINTR)
- continue;
- break;
- }
- /*
- * If we're at the beginning of the line and recognize a
- * command character, then we echo locally. Otherwise,
- * characters are echo'd remotely. If the command character
- * is doubled, this acts as a force and local echo is
- * suppressed.
- */
- if (bol) {
- bol = 0;
- if (c == cmdchar) {
- bol = 0;
- local = 1;
- continue;
- }
- } else if (local) {
- local = 0;
- if (c == '.' || c == deftc.t_eofc) {
- echo(c);
- break;
- }
- if (c == defltc.t_suspc || c == defltc.t_dsuspc) {
- bol = 1;
- echo(c);
- stop(c);
- continue;
- }
- if (c != cmdchar) {
- (void)write(rem, &cmdchar, 1);
- }
- }
-
- if (write(rem, &c, 1) == 0) {
- msg("line gone");
- break;
- }
- bol = c == defkill || c == deftc.t_eofc ||
- c == deftc.t_intrc || c == defltc.t_suspc ||
- c == '\r' || c == '\n';
- }
-}
-
-echo(c)
-register char c;
-{
- register char *p;
- char buf[8];
-
- p = buf;
- c &= 0177;
- *p++ = cmdchar;
- if (c < ' ') {
- *p++ = '^';
- *p++ = c + '@';
- } else if (c == 0177) {
- *p++ = '^';
- *p++ = '?';
- } else
- *p++ = c;
- *p++ = '\r';
- *p++ = '\n';
- (void)write(1, buf, p - buf);
-}
-
-stop(cmdc)
- char cmdc;
-{
- mode(0);
- (void)signal(SIGCHLD, SIG_IGN);
- (void)kill(cmdc == defltc.t_suspc ? 0 : getpid(), SIGTSTP);
- (void)signal(SIGCHLD, catch_child);
- mode(1);
- sigwinch(); /* check for size changes */
-}
-
-void
-sigwinch()
-{
- struct winsize ws;
-
- if (dosigwinch && get_window_size(0, &ws) == 0 &&
- bcmp(&ws, &winsize, sizeof(ws))) {
- winsize = ws;
- sendwindow();
- }
-}
-
-/*
- * Send the window size to the server via the magic escape
- */
-sendwindow()
-{
- struct winsize *wp;
- char obuf[4 + sizeof (struct winsize)];
-
- wp = (struct winsize *)(obuf+4);
- obuf[0] = 0377;
- obuf[1] = 0377;
- obuf[2] = 's';
- obuf[3] = 's';
- wp->ws_row = htons(winsize.ws_row);
- wp->ws_col = htons(winsize.ws_col);
- wp->ws_xpixel = htons(winsize.ws_xpixel);
- wp->ws_ypixel = htons(winsize.ws_ypixel);
-
- (void)write(rem, obuf, sizeof(obuf));
-}
-
-/*
- * reader: read from remote: line -> 1
- */
-#define READING 1
-#define WRITING 2
-
-jmp_buf rcvtop;
-int ppid, rcvcnt, rcvstate;
-char rcvbuf[8 * 1024];
-
-void
-oob()
-{
- struct sgttyb sb;
- int atmark, n, out, rcvd;
- char waste[BUFSIZ], mark;
-
- out = O_RDWR;
- rcvd = 0;
- while (recv(rem, &mark, 1, MSG_OOB) < 0)
- switch (errno) {
- case EWOULDBLOCK:
- /*
- * Urgent data not here yet. It may not be possible
- * to send it yet if we are blocked for output and
- * our input buffer is full.
- */
- if (rcvcnt < sizeof(rcvbuf)) {
- n = read(rem, rcvbuf + rcvcnt,
- sizeof(rcvbuf) - rcvcnt);
- if (n <= 0)
- return;
- rcvd += n;
- } else {
- n = read(rem, waste, sizeof(waste));
- if (n <= 0)
- return;
- }
- continue;
- default:
- return;
- }
- if (mark & TIOCPKT_WINDOW) {
- /* Let server know about window size changes */
- (void)kill(ppid, SIGUSR1);
- }
- if (!eight && (mark & TIOCPKT_NOSTOP)) {
- (void)ioctl(0, TIOCGETP, (char *)&sb);
- sb.sg_flags &= ~CBREAK;
- sb.sg_flags |= RAW;
- (void)ioctl(0, TIOCSETN, (char *)&sb);
- notc.t_stopc = -1;
- notc.t_startc = -1;
- (void)ioctl(0, TIOCSETC, (char *)&notc);
- }
- if (!eight && (mark & TIOCPKT_DOSTOP)) {
- (void)ioctl(0, TIOCGETP, (char *)&sb);
- sb.sg_flags &= ~RAW;
- sb.sg_flags |= CBREAK;
- (void)ioctl(0, TIOCSETN, (char *)&sb);
- notc.t_stopc = deftc.t_stopc;
- notc.t_startc = deftc.t_startc;
- (void)ioctl(0, TIOCSETC, (char *)&notc);
- }
- if (mark & TIOCPKT_FLUSHWRITE) {
- (void)ioctl(1, TIOCFLUSH, (char *)&out);
- for (;;) {
- if (ioctl(rem, SIOCATMARK, &atmark) < 0) {
- (void)fprintf(stderr, "rlogin: ioctl: errno %d.\n",
- errno);
- break;
- }
- if (atmark)
- break;
- n = read(rem, waste, sizeof (waste));
- if (n <= 0)
- break;
- }
- /*
- * Don't want any pending data to be output, so clear the recv
- * buffer. If we were hanging on a write when interrupted,
- * don't want it to restart. If we were reading, restart
- * anyway.
- */
- rcvcnt = 0;
- longjmp(rcvtop, 1);
- }
-
- /* oob does not do FLUSHREAD (alas!) */
-
- /*
- * If we filled the receive buffer while a read was pending, longjmp
- * to the top to restart appropriately. Don't abort a pending write,
- * however, or we won't know how much was written.
- */
- if (rcvd && rcvstate == READING)
- longjmp(rcvtop, 1);
-}
-
-/* reader: read from remote: line -> 1 */
-reader(omask)
- int omask;
-{
- void oob();
-
-#if !defined(BSD) || BSD < 43
- int pid = -getpid();
-#else
- int pid = getpid();
-#endif
- int n, remaining;
- char *bufp = rcvbuf;
-
- (void)signal(SIGTTOU, SIG_IGN);
- (void)signal(SIGURG, oob);
- ppid = getppid();
- (void)fcntl(rem, F_SETOWN, pid);
- (void)setjmp(rcvtop);
- (void)sigsetmask(omask);
- for (;;) {
- while ((remaining = rcvcnt - (bufp - rcvbuf)) > 0) {
- rcvstate = WRITING;
- n = write(1, bufp, remaining);
- if (n < 0) {
- if (errno != EINTR)
- return(-1);
- continue;
- }
- bufp += n;
- }
- bufp = rcvbuf;
- rcvcnt = 0;
- rcvstate = READING;
-
- rcvcnt = read(rem, rcvbuf, sizeof (rcvbuf));
- if (rcvcnt == 0)
- return (0);
- if (rcvcnt < 0) {
- if (errno == EINTR)
- continue;
- (void)fprintf(stderr, "rlogin: read: errno %d.\n",
- errno);
- return(-1);
- }
- }
-}
-
-mode(f)
-{
- struct ltchars *ltc;
- struct sgttyb sb;
- struct tchars *tc;
- int lflags;
-
- (void)ioctl(0, TIOCGETP, (char *)&sb);
- (void)ioctl(0, TIOCLGET, (char *)&lflags);
- switch(f) {
- case 0:
- sb.sg_flags &= ~(CBREAK|RAW|TBDELAY);
- sb.sg_flags |= defflags|tabflag;
- tc = &deftc;
- ltc = &defltc;
- sb.sg_kill = defkill;
- sb.sg_erase = deferase;
- lflags = deflflags;
- break;
- case 1:
- sb.sg_flags |= (eight ? RAW : CBREAK);
- sb.sg_flags &= ~defflags;
- /* preserve tab delays, but turn off XTABS */
- if ((sb.sg_flags & TBDELAY) == XTABS)
- sb.sg_flags &= ~TBDELAY;
- tc = &notc;
- ltc = &noltc;
- sb.sg_kill = sb.sg_erase = -1;
- if (litout)
- lflags |= LLITOUT;
- break;
- default:
- return;
- }
- (void)ioctl(0, TIOCSLTC, (char *)ltc);
- (void)ioctl(0, TIOCSETC, (char *)tc);
- (void)ioctl(0, TIOCSETN, (char *)&sb);
- (void)ioctl(0, TIOCLSET, (char *)&lflags);
-}
-
-void
-lostpeer()
-{
- (void)signal(SIGPIPE, SIG_IGN);
- msg("\007connection closed.");
- done(1);
-}
-
-/* copy SIGURGs to the child process. */
-void
-copytochild()
-{
- (void)kill(child, SIGURG);
-}
-
-msg(str)
- char *str;
-{
- (void)fprintf(stderr, "flogin: %s\r\n", str);
-}
-
-warning(msg)
-char *msg;
-{
- (void) fprintf(stderr, msg);
- fflush(stderr);
-}
-
-
-usage()
-{
- (void)fprintf(stderr,
- "usage: rlogin [ -%s]%s[-e char] [ -l username ] host\n",
- "8L", " ");
- exit(1);
-}
-
-/*
- * The following routine provides compatibility (such as it is) between 4.2BSD
- * Suns and others. Suns have only a `ttysize', so we convert it to a winsize.
- */
-#ifdef sun
-int
-get_window_size(fd, wp)
- int fd;
- struct winsize *wp;
-{
- struct ttysize ts;
- int error;
-
- if ((error = ioctl(0, TIOCGSIZE, &ts)) != 0)
- return(error);
- wp->ws_row = ts.ts_lines;
- wp->ws_col = ts.ts_cols;
- wp->ws_xpixel = 0;
- wp->ws_ypixel = 0;
- return(0);
-}
-#endif