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28 results

debug.c

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  • Niels Möller's avatar
    Niels Möller authored
    Rev: src/abstract_io.h:1.17
    Rev: src/blocking_write.c:1.6
    Rev: src/connection.c:1.15
    Rev: src/debug.c:1.15
    Rev: src/encrypt.c:1.14
    Rev: src/pad.c:1.17
    Rev: src/unpad.c:1.13
    Rev: src/write_buffer.c:1.11
    59824561
    History
    debug.c 3.21 KiB
    /* debug.c
     *
     *
     *
     * $Id$ */
    
    /* lsh, an implementation of the ssh protocol
     *
     * Copyright (C) 1998 Niels Mller
     *
     * This program is free software; you can redistribute it and/or
     * modify it under the terms of the GNU General Public License as
     * published by the Free Software Foundation; either version 2 of the
     * License, or (at your option) any later version.
     *
     * This program is distributed in the hope that it will be useful, but
     * WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
     * General Public License for more details.
     *
     * 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 "debug.h"
    
    #include "connection.h"
    #include "format.h"
    #include "parse.h"
    #include "ssh.h"
    #include "xalloc.h"
    #include "werror.h"
    
    struct packet_debug
    {
      struct abstract_write_pipe super;
      char *prefix;
    };
    
    static int do_debug(struct abstract_write *w,
    		    struct lsh_string *packet)
    {
      struct packet_debug *closure
        = (struct packet_debug *) w;
      
      MDEBUG(closure);
    
      debug("DEBUG: recieved packet");
      debug_hex(packet->length, packet->data);
      debug("\n");
      
      return A_WRITE(closure->super.next, packet);
    }
    
    struct abstract_write *
    make_packet_debug(struct abstract_write *continuation, char *prefix)
    {
      struct packet_debug *closure;
    
      NEW(closure);
    
      closure->super.super.write = do_debug;
      closure->super.next = continuation;
      closure->prefix = prefix;
    
      return &closure->super.super;
    }
    
    static struct lsh_string *make_debug_packet(char *msg, int always_display)
    {
      return ssh_format("%c%c%z%z",
    		    SSH_MSG_DEBUG,
    		    always_display,
    		    msg,
    		    /* Empty language tag */ 
    		    "");
    }
    
    /* Send a debug message to the other end. */
    int send_debug(struct abstract_write *write, char *msg, int always_display)
    {
      return (debug_flag)
        ? A_WRITE(write, make_debug_packet(msg, always_display))
        : LSH_OK | LSH_GOON;
      
    }
    
    int send_verbose(struct abstract_write *write, char *msg, int always_display)
    {
      return (verbose_flag)
        ? A_WRITE(write, make_debug_packet(msg, always_display))
        : LSH_OK | LSH_GOON;
    }
    
    static int do_rec_debug(struct packet_handler *self,
    			struct ssh_connection *connection,
    			struct lsh_string *packet)
    {
      struct simple_buffer buffer;
      int msg_number;
      int always_display;
      UINT32 length;
      UINT8 *msg;
      int language;
      
      simple_buffer_init(&buffer, packet->length, packet->data);
    
      if (!(parse_uint8(&buffer, &msg_number)
    	&& parse_uint8(&buffer, &always_display)
    	&& parse_string(&buffer, &length, &msg)
    	&& parse_atom(&buffer, &language)
    	&& parse_eod(&buffer)))
        {
          lsh_string_free(packet);
          return LSH_FAIL | LSH_DIE;
        }
    
      if (always_display)
        {
          werror("Recieved debug: ");
          werror_utf8(length, msg);
          werror("\n");
        }
      else
        {
          verbose("Recieved debug: ");
          verbose_utf8(length, msg);
          verbose("\n");
        }
    
      lsh_string_free(packet);
      return LSH_OK | LSH_GOON;
    }
    
    struct packet_handler *make_rec_debug_handler(void)
    {
      struct packet_handler *self;
    
      NEW(self);
    
      self->handler = do_rec_debug;
    
      return self;
    }