| /* Implementation of the LINK intrinsic. |
| Copyright (C) 2005-2021 Free Software Foundation, Inc. |
| Contributed by François-Xavier Coudert <coudert@clipper.ens.fr> |
| |
| This file is part of the GNU Fortran runtime library (libgfortran). |
| |
| Libgfortran 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. |
| |
| Libgfortran 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. |
| |
| Under Section 7 of GPL version 3, you are granted additional |
| permissions described in the GCC Runtime Library Exception, version |
| 3.1, as published by the Free Software Foundation. |
| |
| You should have received a copy of the GNU General Public License and |
| a copy of the GCC Runtime Library Exception along with this program; |
| see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include "libgfortran.h" |
| |
| #include <errno.h> |
| |
| #ifdef HAVE_UNISTD_H |
| #include <unistd.h> |
| #endif |
| |
| /* SUBROUTINE LINK(PATH1, PATH2, STATUS) |
| CHARACTER(len=*), INTENT(IN) :: PATH1, PATH2 |
| INTEGER, INTENT(OUT), OPTIONAL :: STATUS */ |
| |
| #ifdef HAVE_LINK |
| |
| static int |
| link_internal (char *path1, char *path2, gfc_charlen_type path1_len, |
| gfc_charlen_type path2_len) |
| { |
| int val; |
| char *str1, *str2; |
| |
| /* Make a null terminated copy of the strings. */ |
| str1 = fc_strdup (path1, path1_len); |
| str2 = fc_strdup (path2, path2_len); |
| |
| val = link (str1, str2); |
| |
| free (str1); |
| free (str2); |
| |
| return ((val == 0) ? 0 : errno); |
| } |
| |
| |
| extern void link_i4_sub (char *, char *, GFC_INTEGER_4 *, gfc_charlen_type, |
| gfc_charlen_type); |
| iexport_proto(link_i4_sub); |
| |
| void |
| link_i4_sub (char *path1, char *path2, GFC_INTEGER_4 *status, |
| gfc_charlen_type path1_len, gfc_charlen_type path2_len) |
| { |
| int val = link_internal (path1, path2, path1_len, path2_len); |
| |
| if (status != NULL) |
| *status = val; |
| } |
| iexport(link_i4_sub); |
| |
| extern void link_i8_sub (char *, char *, GFC_INTEGER_8 *, gfc_charlen_type, |
| gfc_charlen_type); |
| iexport_proto(link_i8_sub); |
| |
| void |
| link_i8_sub (char *path1, char *path2, GFC_INTEGER_8 *status, |
| gfc_charlen_type path1_len, gfc_charlen_type path2_len) |
| { |
| int val = link_internal (path1, path2, path1_len, path2_len); |
| |
| if (status != NULL) |
| *status = val; |
| } |
| iexport(link_i8_sub); |
| |
| extern GFC_INTEGER_4 link_i4 (char *, char *, gfc_charlen_type, |
| gfc_charlen_type); |
| export_proto(link_i4); |
| |
| GFC_INTEGER_4 |
| link_i4 (char *path1, char *path2, gfc_charlen_type path1_len, |
| gfc_charlen_type path2_len) |
| { |
| return link_internal (path1, path2, path1_len, path2_len); |
| } |
| |
| extern GFC_INTEGER_8 link_i8 (char *, char *, gfc_charlen_type, |
| gfc_charlen_type); |
| export_proto(link_i8); |
| |
| GFC_INTEGER_8 |
| link_i8 (char *path1, char *path2, gfc_charlen_type path1_len, |
| gfc_charlen_type path2_len) |
| { |
| return link_internal (path1, path2, path1_len, path2_len); |
| } |
| #endif |