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authorDavid Cantrell <dcantrell@redhat.com>2007-05-29 18:06:29 +0000
committerDavid Cantrell <dcantrell@redhat.com>2007-05-29 18:06:29 +0000
commit07647fb5b545d3dcc7c1bc1436f1f1e8c6237937 (patch)
tree7d038f66ac8a2410a61961e69b7ca395263a64c8 /loader2/telnetd.c
parentb31b75aae2cbd298b94f8188ec6369e507fc3a7a (diff)
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Get ready for a surprise... no more telnet support! SSH is it. It's 2007, update your client systems. Besides, telnet was b0rk3n in RHEL5 and only one person complained. Time to advance loader to a telnet-free world. Also, this only affects mainframes.
Diffstat (limited to 'loader2/telnetd.c')
-rw-r--r--loader2/telnetd.c250
1 files changed, 0 insertions, 250 deletions
diff --git a/loader2/telnetd.c b/loader2/telnetd.c
deleted file mode 100644
index 75bce5222..000000000
--- a/loader2/telnetd.c
+++ /dev/null
@@ -1,250 +0,0 @@
-/*
- * telnetd.c - glue to tie telnet.c from ttywatch to the loader
- *
- * Erik Troan <ewt@redhat.com>
- * Jeremy Katz <katzj@redhat.com>
- *
- * Copyright 2002 Red Hat, Inc.
- *
- * This software may be freely redistributed under the terms of the GNU
- * General Public License.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <arpa/inet.h>
-#include <ctype.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <netinet/in.h>
-#include <newt.h>
-#include <pty.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/ioctl.h>
-#include <sys/poll.h>
-#include <sys/signal.h>
-#include <sys/socket.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include "lang.h"
-#include "loader.h"
-#include "log.h"
-#include "modules.h"
-#include "net.h"
-#include "telnet.h"
-#include "windows.h"
-
-#ifndef IPPORT_TELNET
-#define IPPORT_TELNET 23
-#endif
-
-/* boot flags */
-extern int flags;
-
-/* Forks, keeping the loader as our child (so we know when it dies). */
-int beTelnet(void) {
- int sock;
- int conn;
- socklen_t addrLength;
- pid_t child;
- int i;
- int masterFd, ttyFd;
- struct sockaddr_in address;
- char buf[4096];
- struct pollfd fds[3];
- telnet_state ts = TS_DATA;
- char * termType;
- int height, width;
- struct winsize ws;
-
- if ((sock = socket(PF_INET, SOCK_STREAM, 0)) < 0) {
- logMessage(ERROR, "socket: %s", strerror(errno));
- return -1;
- }
-
- address.sin_family = AF_INET;
- address.sin_port = htons(IPPORT_TELNET);
- memset(&address.sin_addr, 0, sizeof(address.sin_addr));
- addrLength = sizeof(address);
-
- /* Let the kernel reuse the socket address. This lets us run
- twice in a row, without waiting for the (ip, port) tuple
- to time out. Makes testing much easier*/
- conn = 1;
- setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &conn, sizeof(conn));
-
- bind(sock, (struct sockaddr *) &address, sizeof(address));
- listen(sock, 5);
-
- winStatus(45, 3, _("Telnet"), _("Waiting for telnet connection..."));
-
- if ((conn = accept(sock, (struct sockaddr *) &address,
- &addrLength)) < 0) {
- newtWinMessage(_("Error"), _("OK"), "accept failed: %s",
- strerror(errno));
- close(sock);
- return -1;
- }
-
- stopNewt();
-
- close(sock);
-
- telnet_negotiate(conn, &termType, &height, &width);
-
-#ifdef DEBUG_TELNET
- printf("got term type %s\n", termType);
-#endif
-
- masterFd = open("/dev/ptmx", O_RDWR);
- if (masterFd < 0) {
- logMessage(CRITICAL, "cannot open /dev/ptmx");
- close(conn);
- return -1;
- }
-
- if (height != -1 && width != -1) {
-#ifdef DEBUG_TELNET
- printf("setting window size to %d x %d\n", width, height);
-#endif
- ws.ws_row = height;
- ws.ws_col = width;
- ioctl(masterFd, TIOCSWINSZ, &ws);
- }
-
-
- child = fork();
-
- if (child) {
-#ifndef DEBUG_TELNET
- startNewt();
- winStatus(45, 3, _("Telnet"), _("Running anaconda via telnet..."));
-#endif
-
- fds[0].events = POLLIN;
- fds[0].fd = masterFd;
-
- fds[1].events = POLLIN;
- fds[1].fd = conn;
-
- while ((i = poll(fds, 2, -1)) > 0) {
- if (fds[0].revents) {
- i = read(masterFd, buf, sizeof(buf));
-
-#ifdef DEBUG_TELNET
- {
- int j;
- int row;
-
- for (row = 0; row < (i / 12) + 1; row++) {
- printf("wrote:");
- for (j = (row * 12); j < i && j < ((row + 1) * 12); j++)
- printf(" 0x%2x", (unsigned char) buf[j]);
- printf("\n");
- printf("wrote:");
- for (j = (row * 12); j < i && j < ((row + 1) * 12); j++)
- {
- if (isprint(buf[j]))
- printf(" %c ", buf[j]);
- else
- printf(" ");
- }
- printf("\n");
- }
- }
-#endif
- /* child died */
- if (i < 0)
- break;
-
- telnet_send_output(conn, buf, i);
- }
-
- if (fds[1].revents) {
- int ret;
- i = read(conn, buf, sizeof(buf));
-
- /* connection went away */
- if (!i)
- break;
-
- i = telnet_process_input(&ts, buf, i);
- ret = write(masterFd, buf, i);
-
-#ifdef DEBUG_TELNET
- {
- int j;
-
- printf("got:");
- for (j = 0; j < i; j++)
- printf(" 0x%x", (unsigned char) buf[j]);
- printf("\n");
- }
-#endif
-
- }
- }
-
-
- if (i < 0) {
- logMessage(ERROR, "poll: %s", strerror(errno));
- }
-
-#ifndef DEBUG_TELNET
- stopNewt();
-#endif
-
- kill(child, SIGTERM);
- close(conn);
-
- exit(0);
- }
-
- unlockpt(masterFd);
- grantpt(masterFd);
- ttyFd = open(ptsname(masterFd), O_RDWR);
- close(masterFd);
- setsid();
- close(0);
- close(1);
- close(2);
-
- if (ttyFd != 0) {
- dup2(ttyFd, 0);
- close(ttyFd);
- }
- dup2(0, 1);
- dup2(0, 2);
-
- /* brand new tty! */
- setenv("TERM", termType, 1);
-
- startNewt();
-
- return 0;
-}
-
-void startTelnetd(struct loaderData_s * loaderData,
- moduleInfoSet modInfo, moduleList modLoaded,
- moduleDeps modDeps) {
- char ret[47];
- struct networkDeviceConfig netCfg;
- ip_addr_t *tip;
-
- if (kickstartNetworkUp(loaderData, &netCfg)) {
- logMessage(ERROR, "unable to bring up network");
- return;
- }
-
- tip = &(netCfg.dev.ip);
- inet_ntop(tip->sa_family, IP_ADDR(tip), ret, IP_STRLEN(tip));
- logMessage(INFO, "going to beTelnet for %s", ret);
- if (!beTelnet())
- flags |= LOADER_FLAGS_TEXT | LOADER_FLAGS_NOSHELL;
-
- return;
-}