osprey/libU77/link_.c

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/*
 * Copyright 2004, 2005 PathScale, Inc.  All Rights Reserved.
 */

/* Copyright (C) 1995, 1997 Free Software Foundation, Inc.
This file is part of GNU Fortran libU77 library.

This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Library General Public License as published
by the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

GNU Fortran 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
Library General Public License for more details.

You should have received a copy of the GNU Library General Public
License along with GNU Fortran; see the file COPYING.LIB.  If
not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

#include "config.h"
#if HAVE_STDLIB_H
#  include <stdlib.h>
#else
#  include <stdio.h>
#endif
#if HAVE_UNISTD_H
#  include <unistd.h>
#endif
#include <errno.h>
#if HAVE_SYS_PARAM_H
#  include <sys/param.h>
#endif
#include <errno.h>    /* for ENOSYS */
#include "f2c.h"

void g_char (const char *a, ftnlen alen, char *b);

integer
G77_link_0 (const char *path1, const char *path2, const ftnlen Lpath1,
      const ftnlen Lpath2)
{
#if defined (HAVE_LINK) || defined(KEY) /* Bug 1683 */
  char *buff1, *buff2;
  int i;

  buff1 = malloc (Lpath1 + 1);
  if (buff1 == NULL)
    return -1;
  g_char (path1, Lpath1, buff1);
  buff2 = malloc (Lpath2 + 1);
  if (buff2 == NULL)
    return -1;
  g_char (path2, Lpath2, buff2);
  i = link (buff1, buff2);
  free (buff1);
  free (buff2);
  return i ? errno : 0;
#else /* ! HAVE_LINK */
  errno = ENOSYS;
  return -1;
#endif
}

#ifdef KEY /* Bug 1683 */
/* Provide subroutine interface too */
void
pathf90_link(const char *path1, const char *path2, int *status,
  const ftnlen Lpath1, const ftnlen Lpath2)
{
  int junk;
  status = (0 == status) ? (&junk) : status;
  *status = G77_link_0(path1, path2, Lpath1, Lpath2);
}
#endif /* KEY Bug 1683 */

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