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/* Implementation of the UNLINK intrinsic.
Copyright (C) 2004, 2005, 2007, 2009 Free Software Foundation, Inc.
Contributed by Steven G. Kargl <kargls@comcast.net>.
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 <string.h>
#include <errno.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
/* SUBROUTINE UNLINK(NAME, STATUS)
CHARACTER(LEN= ), INTENT(IN) :: NAME
INTEGER, INTENT(OUT), OPTIONAL :: STATUS) */
extern void unlink_i4_sub (char *name, GFC_INTEGER_4 *status,
gfc_charlen_type name_len);
iexport_proto(unlink_i4_sub);
void
unlink_i4_sub (char *name, GFC_INTEGER_4 *status, gfc_charlen_type name_len)
{
char *str;
GFC_INTEGER_4 stat;
/* Trim trailing spaces from name. */
while (name_len > 0 && name[name_len - 1] == ' ')
name_len--;
/* Make a null terminated copy of the string. */
str = gfc_alloca (name_len + 1);
memcpy (str, name, name_len);
str[name_len] = '\0';
stat = unlink (str);
if (status != NULL)
*status = (stat == 0) ? stat : errno;
}
iexport(unlink_i4_sub);
extern void unlink_i8_sub (char *name, GFC_INTEGER_8 *status,
gfc_charlen_type name_len);
export_proto(unlink_i8_sub);
void
unlink_i8_sub (char *name, GFC_INTEGER_8 *status, gfc_charlen_type name_len)
{
GFC_INTEGER_4 status4;
unlink_i4_sub (name, &status4, name_len);
if (status)
*status = status4;
}
/* INTEGER FUNCTION UNLINK(NAME)
CHARACTER(LEN= ), INTENT(IN) :: NAME */
extern GFC_INTEGER_4 PREFIX(unlink) (char *, gfc_charlen_type);
export_proto_np(PREFIX(unlink));
GFC_INTEGER_4
PREFIX(unlink) (char *name, gfc_charlen_type name_len)
{
GFC_INTEGER_4 status;
unlink_i4_sub (name, &status, name_len);
return status;
}
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