| /* Implementation of the UNLINK intrinsic. |
| Copyright (C) 2004 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 2 of the License, or (at your option) any later version. |
| |
| In addition to the permissions in the GNU General Public License, the |
| Free Software Foundation gives you unlimited permission to link the |
| compiled version of this file into combinations with other programs, |
| and to distribute those combinations without any restriction coming |
| from the use of this file. (The General Public License restrictions |
| do apply in other respects; for example, they cover modification of |
| the file, and distribution when not linked into a combine |
| executable.) |
| |
| 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. |
| |
| You should have received a copy of the GNU General Public |
| License along with libgfortran; see the file COPYING. If not, |
| write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #include "config.h" |
| #include "libgfortran.h" |
| |
| #ifdef HAVE_UNISTD_H |
| #include <unistd.h> |
| #endif |
| #ifdef HAVE_STRING_H |
| #include <string.h> |
| #endif |
| |
| #include <errno.h> |
| |
| /* 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, *s; |
| 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; |
| } |