libf2c/libU77/symlnk_.c

   1 /* Copyright (C) 1995, 1997 Free Software Foundation, Inc.
   2 This file is part of GNU Fortran.
   3
   4 GNU Fortran is free software; you can redistribute it and/or modify it
   5 under the terms of the GNU Library General Public License as published
   6 by the Free Software Foundation; either version 2 of the License, or
   7 (at your option) any later version.
   8
   9 GNU Fortran is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 Library General Public License for more details.
  13
  14 You should have received a copy of the GNU Library General Public
  15 License along with GNU Fortran; see the file COPYING.LIB.  If
  16 not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17 Boston, MA 02111-1307, USA.  */
  18
  19 #ifdef HAVE_CONFIG_H
  20 #include "config.h"
  21 #endif
  22 #if HAVE_STDLIB_H
  23 #  include <stdlib.h>
  24 #else
  25 #  include <stdio.h>
  26 #endif
  27 #if HAVE_UNISTD_H
  28 #  include <unistd.h>
  29 #endif
  30 #include <errno.h>
  31 #if HAVE_SYS_PARAM_H
  32 #  include <sys/param.h>
  33 #endif
  34 #include "f2c.h"
  35
  36 void g_char (const char *a, ftnlen alen, char *b);
  37
  38 integer
  39 G77_symlnk_0 (const char *path1, const char *path2, const ftnlen Lpath1,
  40               const ftnlen Lpath2)
  41 {
  42 #if HAVE_SYMLINK
  43   char *buff1, *buff2;
  44   int i;
  45
  46   buff1 = (char *) malloc (Lpath1 + 1);
  47   if (buff1 == NULL)
  48     return -1;
  49   g_char (path1, Lpath1, buff1);
  50   buff2 = (char *) malloc (Lpath2 + 1);
  51   if (buff2 == NULL)
  52     return -1;
  53   g_char (path2, Lpath2, buff2);
  54   i = symlink (buff1, buff2);
  55   free (buff1);
  56   free (buff2);
  57   return i ? errno : 0;
  58 #else /* !HAVE_SYMLINK */
  59   return errno = ENOSYS;
  60 #endif /* !HAVE_SYMLINK */
  61 }