gcc/f/runtime/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 "f2c.h"
  30
  31 #if HAVE_GETCWD
  32
  33 #ifdef HAVE_UNISTD_H
  34 #  include <unistd.h>
  35 #else
  36   extern char *getcwd ();
  37 #endif
  38
  39 #ifdef KR_headers
  40 extern void s_copy ();
  41 integer G77_getcwd_0 (str, Lstr)
  42      char *str; ftnlen Lstr;
  43 #else
  44 extern void s_copy(register char *a, register char *b, ftnlen la, ftnlen lb);
  45 integer G77_getcwd_0 (char *str, const ftnlen Lstr)
  46 #endif
  47 {
  48     int i;
  49     char *ret;
  50
  51     ret = getcwd (str, Lstr);
  52     if (ret == NULL) return errno;
  53     for (i=strlen(str); i<Lstr; i++)
  54         str[i] = ' ';
  55     return 0;
  56 }
  57
  58 #elif HAVE_GETWD                /* HAVE_GETCWD */
  59
  60 /* getwd usage taken from SunOS4 man */
  61
  62 #  include <sys/param.h>
  63   extern char *getwd ();
  64 #ifdef KR_headers
  65 extern VOID s_copy ();
  66 integer G77_getcwd_0 (str, Lstr)
  67      char *str; ftnlen Lstr;
  68 #else
  69 extern void s_copy(register char *a, register char *b, ftnlen la, ftnlen lb);
  70 integer G77_getcwd_0 (char *str, const ftnlen Lstr)
  71 #endif
  72 {
  73   char pathname[MAXPATHLEN];
  74   size_t l;
  75
  76   if (getwd (pathname) == NULL) {
  77     return errno;
  78   } else {
  79     s_copy (str, pathname, Lstr, strlen (str));
  80     return 0;
  81   }
  82 }
  83
  84 #else  /* !HAVE_GETWD && !HAVE_GETCWD */
  85
  86 #ifdef KR_headers
  87 extern VOID s_copy ();
  88 integer G77_getcwd_0 (str, Lstr)
  89      char *str; ftnlen Lstr;
  90 #else
  91 extern void s_copy(register char *a, register char *b, ftnlen la, ftnlen lb);
  92 integer G77_getcwd_0 (char *str, const ftnlen Lstr)
  93 #endif
  94 {
  95   return errno = ENOSYS;
  96 }
  97
  98 #endif