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/* General utility routines for the remote server for GDB.

   Copyright (C) 1986, 1989, 1993, 1995, 1996, 1997, 1999, 2000, 2002, 2003,

   2007, 2008 Free Software Foundation, Inc.

   This file is part of GDB.

   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 3 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, see <http://www.gnu.org/licenses/>.  */

#include "server.h"

#include <stdio.h>

#include <string.h>

#include <stdlib.h>

#if HAVE_ERRNO_H

#include <errno.h>

#endif

#if HAVE_MALLOC_H

#include <malloc.h>

#endif

/* Generally useful subroutines used throughout the program.  */

/* Print the system error message for errno, and also mention STRING

   as the file name for which the error was encountered.

   Then return to command level.  */

void

perror_with_name (char *string)

{

  const char *err;

  char *combined;

  err = strerror (errno);

  if (err == NULL)

    err = "unknown error";

  combined = (char *) alloca (strlen (err) + strlen (string) + 3);

  strcpy (combined, string);

  strcat (combined, ": ");

  strcat (combined, err);

  error ("%s.", combined);

}

/* Print an error message and return to command level.

   STRING is the error message, used as a fprintf string,

   and ARG is passed as an argument to it.  */

void

error (const char *string,...)

{

  extern jmp_buf toplevel;

  va_list args;

  va_start (args, string);

  fflush (stdout);

  vfprintf (stderr, string, args);

  fprintf (stderr, "\n");

  longjmp (toplevel, 1);

}

/* Print an error message and exit reporting failure.

   This is for a error that we cannot continue from.

   STRING and ARG are passed to fprintf.  */

/* VARARGS */

void

fatal (const char *string,...)

{

  va_list args;

  va_start (args, string);

  fprintf (stderr, "gdbserver: ");

  vfprintf (stderr, string, args);

  fprintf (stderr, "\n");

  va_end (args);

  exit (1);

}

/* VARARGS */

void

warning (const char *string,...)

{

  va_list args;

  va_start (args, string);

  fprintf (stderr, "gdbserver: ");

  vfprintf (stderr, string, args);

  fprintf (stderr, "\n");

  va_end (args);

}