mirror of
https://github.com/autc04/Retro68.git
synced 2024-12-17 15:29:43 +00:00
132 lines
3.7 KiB
C
132 lines
3.7 KiB
C
/* Implementation of the LINK intrinsic.
|
|
Copyright (C) 2005, 2007, 2009 Free Software Foundation, Inc.
|
|
Contributed by François-Xavier Coudert <coudert@clipper.ens.fr>
|
|
|
|
This file is part of the GNU Fortran 95 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>
|
|
#include <string.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
|
|
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;
|
|
char *str1, *str2;
|
|
|
|
/* Trim trailing spaces from paths. */
|
|
while (path1_len > 0 && path1[path1_len - 1] == ' ')
|
|
path1_len--;
|
|
while (path2_len > 0 && path2[path2_len - 1] == ' ')
|
|
path2_len--;
|
|
|
|
/* Make a null terminated copy of the strings. */
|
|
str1 = gfc_alloca (path1_len + 1);
|
|
memcpy (str1, path1, path1_len);
|
|
str1[path1_len] = '\0';
|
|
|
|
str2 = gfc_alloca (path2_len + 1);
|
|
memcpy (str2, path2, path2_len);
|
|
str2[path2_len] = '\0';
|
|
|
|
val = link (str1, str2);
|
|
|
|
if (status != NULL)
|
|
*status = (val == 0) ? 0 : errno;
|
|
}
|
|
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;
|
|
char *str1, *str2;
|
|
|
|
/* Trim trailing spaces from paths. */
|
|
while (path1_len > 0 && path1[path1_len - 1] == ' ')
|
|
path1_len--;
|
|
while (path2_len > 0 && path2[path2_len - 1] == ' ')
|
|
path2_len--;
|
|
|
|
/* Make a null terminated copy of the strings. */
|
|
str1 = gfc_alloca (path1_len + 1);
|
|
memcpy (str1, path1, path1_len);
|
|
str1[path1_len] = '\0';
|
|
|
|
str2 = gfc_alloca (path2_len + 1);
|
|
memcpy (str2, path2, path2_len);
|
|
str2[path2_len] = '\0';
|
|
|
|
val = link (str1, str2);
|
|
|
|
if (status != NULL)
|
|
*status = (val == 0) ? 0 : errno;
|
|
}
|
|
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)
|
|
{
|
|
GFC_INTEGER_4 val;
|
|
link_i4_sub (path1, path2, &val, path1_len, path2_len);
|
|
return val;
|
|
}
|
|
|
|
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)
|
|
{
|
|
GFC_INTEGER_8 val;
|
|
link_i8_sub (path1, path2, &val, path1_len, path2_len);
|
|
return val;
|
|
}
|
|
#endif
|