packetstorm sync

1 files changed, 359 insertions, 0 deletions

diff --git a/other/openssh-2.1.1p4/ttymodes.c b/other/openssh-2.1.1p4/ttymodes.c
new file mode 100644
index 0000000..f4b7af5
--- /dev/null
+++ b/other/openssh-2.1.1p4/ttymodes.c
@@ -0,0 +1,359 @@
+/*
+ * Author: Tatu Ylonen <ylo@cs.hut.fi>
+ * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
+ *                    All rights reserved
+ * Created: Tue Mar 21 15:59:15 1995 ylo
+ * Encoding and decoding of terminal modes in a portable way.
+ * Much of the format is defined in ttymodes.h; it is included multiple times
+ * into this file with the appropriate macro definitions to generate the
+ * suitable code.
+ */
+
+#include "includes.h"
+RCSID("$OpenBSD: ttymodes.c,v 1.7 2000/06/20 01:39:45 markus Exp $");
+
+#include "packet.h"
+#include "ssh.h"
+
+#define TTY_OP_END      0
+#define TTY_OP_ISPEED   192     /* int follows */
+#define TTY_OP_OSPEED   193     /* int follows */
+
+/*
+ * Converts POSIX speed_t to a baud rate.  The values of the
+ * constants for speed_t are not themselves portable.
+ */
+static int
+speed_to_baud(speed_t speed)
+{
+        switch (speed) {
+        case B0:
+                return 0;
+        case B50:
+                return 50;
+        case B75:
+                return 75;
+        case B110:
+                return 110;
+        case B134:
+                return 134;
+        case B150:
+                return 150;
+        case B200:
+                return 200;
+        case B300:
+                return 300;
+        case B600:
+                return 600;
+        case B1200:
+                return 1200;
+        case B1800:
+                return 1800;
+        case B2400:
+                return 2400;
+        case B4800:
+                return 4800;
+        case B9600:
+                return 9600;
+
+#ifdef B19200
+        case B19200:
+                return 19200;
+#else /* B19200 */
+#ifdef EXTA
+        case EXTA:
+                return 19200;
+#endif /* EXTA */
+#endif /* B19200 */
+
+#ifdef B38400
+        case B38400:
+                return 38400;
+#else /* B38400 */
+#ifdef EXTB
+        case EXTB:
+                return 38400;
+#endif /* EXTB */
+#endif /* B38400 */
+
+#ifdef B7200
+        case B7200:
+                return 7200;
+#endif /* B7200 */
+#ifdef B14400
+        case B14400:
+                return 14400;
+#endif /* B14400 */
+#ifdef B28800
+        case B28800:
+                return 28800;
+#endif /* B28800 */
+#ifdef B57600
+        case B57600:
+                return 57600;
+#endif /* B57600 */
+#ifdef B76800
+        case B76800:
+                return 76800;
+#endif /* B76800 */
+#ifdef B115200
+        case B115200:
+                return 115200;
+#endif /* B115200 */
+#ifdef B230400
+        case B230400:
+                return 230400;
+#endif /* B230400 */
+        default:
+                return 9600;
+        }
+}
+
+/*
+ * Converts a numeric baud rate to a POSIX speed_t.
+ */
+static speed_t
+baud_to_speed(int baud)
+{
+        switch (baud) {
+                case 0:
+                return B0;
+        case 50:
+                return B50;
+        case 75:
+                return B75;
+        case 110:
+                return B110;
+        case 134:
+                return B134;
+        case 150:
+                return B150;
+        case 200:
+                return B200;
+        case 300:
+                return B300;
+        case 600:
+                return B600;
+        case 1200:
+                return B1200;
+        case 1800:
+                return B1800;
+        case 2400:
+                return B2400;
+        case 4800:
+                return B4800;
+        case 9600:
+                return B9600;
+
+#ifdef B19200
+        case 19200:
+                return B19200;
+#else /* B19200 */
+#ifdef EXTA
+        case 19200:
+                return EXTA;
+#endif /* EXTA */
+#endif /* B19200 */
+
+#ifdef B38400
+        case 38400:
+                return B38400;
+#else /* B38400 */
+#ifdef EXTB
+        case 38400:
+                return EXTB;
+#endif /* EXTB */
+#endif /* B38400 */
+
+#ifdef B7200
+        case 7200:
+                return B7200;
+#endif /* B7200 */
+#ifdef B14400
+        case 14400:
+                return B14400;
+#endif /* B14400 */
+#ifdef B28800
+        case 28800:
+                return B28800;
+#endif /* B28800 */
+#ifdef B57600
+        case 57600:
+                return B57600;
+#endif /* B57600 */
+#ifdef B76800
+        case 76800:
+                return B76800;
+#endif /* B76800 */
+#ifdef B115200
+        case 115200:
+                return B115200;
+#endif /* B115200 */
+#ifdef B230400
+        case 230400:
+                return B230400;
+#endif /* B230400 */
+        default:
+                return B9600;
+        }
+}
+
+/*
+ * Encodes terminal modes for the terminal referenced by fd
+ * in a portable manner, and appends the modes to a packet
+ * being constructed.
+ */
+void
+tty_make_modes(int fd)
+{
+        struct termios tio;
+        int baud;
+
+        if (tcgetattr(fd, &tio) < 0) {
+                packet_put_char(TTY_OP_END);
+                log("tcgetattr: %.100s", strerror(errno));
+                return;
+        }
+        /* Store input and output baud rates. */
+        baud = speed_to_baud(cfgetospeed(&tio));
+        packet_put_char(TTY_OP_OSPEED);
+        packet_put_int(baud);
+        baud = speed_to_baud(cfgetispeed(&tio));
+        packet_put_char(TTY_OP_ISPEED);
+        packet_put_int(baud);
+
+        /* Store values of mode flags. */
+#define TTYCHAR(NAME, OP) \
+  packet_put_char(OP); packet_put_char(tio.c_cc[NAME]);
+#define TTYMODE(NAME, FIELD, OP) \
+  packet_put_char(OP); packet_put_char((tio.FIELD & NAME) != 0);
+#define SGTTYCHAR(NAME, OP)
+#define SGTTYMODE(NAME, FIELD, OP)
+#define SGTTYMODEN(NAME, FIELD, OP)
+
+#include "ttymodes.h"
+
+#undef TTYCHAR
+#undef TTYMODE
+#undef SGTTYCHAR
+#undef SGTTYMODE
+#undef SGTTYMODEN
+
+        /* Mark end of mode data. */
+        packet_put_char(TTY_OP_END);
+}
+
+/*
+ * Decodes terminal modes for the terminal referenced by fd in a portable
+ * manner from a packet being read.
+ */
+void
+tty_parse_modes(int fd, int *n_bytes_ptr)
+{
+        struct termios tio;
+        int opcode, baud;
+        int n_bytes = 0;
+        int failure = 0;
+
+        /*
+         * Get old attributes for the terminal.  We will modify these
+         * flags. I am hoping that if there are any machine-specific
+         * modes, they will initially have reasonable values.
+         */
+        if (tcgetattr(fd, &tio) < 0)
+                failure = -1;
+
+        for (;;) {
+                n_bytes += 1;
+                opcode = packet_get_char();
+                switch (opcode) {
+                case TTY_OP_END:
+                        goto set;
+
+                case TTY_OP_ISPEED:
+                        n_bytes += 4;
+                        baud = packet_get_int();
+                        if (failure != -1 && cfsetispeed(&tio, baud_to_speed(baud)) < 0)
+                                error("cfsetispeed failed for %d", baud);
+                        break;
+
+                case TTY_OP_OSPEED:
+                        n_bytes += 4;
+                        baud = packet_get_int();
+                        if (failure != -1 && cfsetospeed(&tio, baud_to_speed(baud)) < 0)
+                                error("cfsetospeed failed for %d", baud);
+                        break;
+
+#define TTYCHAR(NAME, OP)                               \
+        case OP:                                        \
+          n_bytes += 1;                                 \
+          tio.c_cc[NAME] = packet_get_char();           \
+          break;
+#define TTYMODE(NAME, FIELD, OP)                        \
+        case OP:                                        \
+          n_bytes += 1;                                 \
+          if (packet_get_char())                        \
+            tio.FIELD |= NAME;                          \
+          else                                          \
+            tio.FIELD &= ~NAME;                         \
+          break;
+#define SGTTYCHAR(NAME, OP)
+#define SGTTYMODE(NAME, FIELD, OP)
+#define SGTTYMODEN(NAME, FIELD, OP)
+
+#include "ttymodes.h"
+
+#undef TTYCHAR
+#undef TTYMODE
+#undef SGTTYCHAR
+#undef SGTTYMODE
+#undef SGTTYMODEN
+
+                default:
+                        debug("Ignoring unsupported tty mode opcode %d (0x%x)",
+                              opcode, opcode);
+                        /*
+                         * Opcodes 0 to 127 are defined to have
+                         * a one-byte argument.
+                         */
+                        if (opcode >= 0 && opcode < 128) {
+                                n_bytes += 1;
+                                (void) packet_get_char();
+                                break;
+                        } else {
+                                /*
+                                 * Opcodes 128 to 159 are defined to have
+                                 * an integer argument.
+                                 */
+                                if (opcode >= 128 && opcode < 160) {
+                                        n_bytes += 4;
+                                        (void) packet_get_int();
+                                        break;
+                                }
+                        }
+                        /*
+                         * It is a truly undefined opcode (160 to 255).
+                         * We have no idea about its arguments.  So we
+                         * must stop parsing.  Note that some data may be
+                         * left in the packet; hopefully there is nothing
+                         * more coming after the mode data.
+                         */
+                        log("parse_tty_modes: unknown opcode %d", opcode);
+                        packet_integrity_check(0, 1, SSH_CMSG_REQUEST_PTY);
+                        goto set;
+                }
+        }
+
+set:
+        if (*n_bytes_ptr != n_bytes) {
+                *n_bytes_ptr = n_bytes;
+                return;         /* Don't process bytes passed */
+        }
+        if (failure == -1)
+                return;         /* Packet parsed ok but tty stuff failed */
+
+        /* Set the new modes for the terminal. */
+        if (tcsetattr(fd, TCSANOW, &tio) < 0)
+                log("Setting tty modes failed: %.100s", strerror(errno));
+        return;
+}