libf2c/libU77/getcwd_.c

   1 /* Copyright (C) 1995, 1996 Free Software Foundation, Inc.
   2 This file is part of GNU Fortran libU77 library.
   3
   4 This library 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 #include <errno.h>
  23 #if HAVE_STRING_H
  24 #  include <string.h>
  25 #else
  26 #  include <strings.h>
  27 #endif
  28 #include <stdio.h>              /* for NULL */
  29 #include <errno.h>              /* for ENOSYS */
  30 #include "f2c.h"
  31
  32 #if HAVE_GETCWD
  33
  34 #ifdef HAVE_UNISTD_H
  35 #  include <unistd.h>
  36 #else
  37 extern char *getcwd ();
  38 #endif
  39
  40 extern void s_copy (register char *a, register char *b, ftnlen la, ftnlen lb);
  41 integer
  42 G77_getcwd_0 (char *str, const ftnlen Lstr)
  43 {
  44   int i;
  45   char *ret;
  46
  47   ret = getcwd (str, Lstr);
  48   if (ret == NULL)
  49     return errno;
  50   for (i = strlen (str); i < Lstr; i++)
  51     str[i] = ' ';
  52   return 0;
  53 }
  54
  55 #elif HAVE_GETWD                /* HAVE_GETCWD */
  56
  57 /* getwd usage taken from SunOS4 man */
  58
  59 #  include <sys/param.h>
  60 extern char *getwd ();
  61 extern void s_copy (register char *a, register char *b, ftnlen la, ftnlen lb);
  62 integer
  63 G77_getcwd_0 (char *str, const ftnlen Lstr)
  64 {
  65   char pathname[MAXPATHLEN];
  66   size_t l;
  67
  68   if (getwd (pathname) == NULL)
  69     {
  70       return errno;
  71     }
  72   else
  73     {
  74       s_copy (str, pathname, Lstr, strlen (str));
  75       return 0;
  76     }
  77 }
  78
  79 #else /* !HAVE_GETWD && !HAVE_GETCWD */
  80
  81 extern void s_copy (register char *a, register char *b, ftnlen la, ftnlen lb);
  82 integer
  83 G77_getcwd_0 (char *str, const ftnlen Lstr)
  84 {
  85   return errno = ENOSYS;
  86 }
  87
  88 #endif