| /* Implementation of the ISATTY and TTYNAM g77 intrinsics. |
| Copyright (C) 2005 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 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., 51 Franklin Street, Fifth Floor, |
| Boston, MA 02110-1301, USA. */ |
| |
| #include "config.h" |
| #include "libgfortran.h" |
| #include "../io/io.h" |
| |
| #include <string.h> |
| |
| /* LOGICAL FUNCTION ISATTY(UNIT) |
| INTEGER, INTENT(IN) :: UNIT */ |
| |
| extern GFC_LOGICAL_4 isatty_l4 (int *); |
| export_proto(isatty_l4); |
| |
| GFC_LOGICAL_4 |
| isatty_l4 (int *unit) |
| { |
| gfc_unit *u; |
| GFC_LOGICAL_4 ret = 0; |
| |
| u = find_unit (*unit); |
| if (u != NULL) |
| { |
| ret = (GFC_LOGICAL_4) stream_isatty (u->s); |
| unlock_unit (u); |
| } |
| return ret; |
| } |
| |
| |
| extern GFC_LOGICAL_8 isatty_l8 (int *); |
| export_proto(isatty_l8); |
| |
| GFC_LOGICAL_8 |
| isatty_l8 (int *unit) |
| { |
| gfc_unit *u; |
| GFC_LOGICAL_8 ret = 0; |
| |
| u = find_unit (*unit); |
| if (u != NULL) |
| { |
| ret = (GFC_LOGICAL_8) stream_isatty (u->s); |
| unlock_unit (u); |
| } |
| return ret; |
| } |
| |
| |
| /* SUBROUTINE TTYNAM(UNIT,NAME) |
| INTEGER,SCALAR,INTENT(IN) :: UNIT |
| CHARACTER,SCALAR,INTENT(OUT) :: NAME */ |
| |
| extern void ttynam_sub (int *, char *, gfc_charlen_type); |
| export_proto(ttynam_sub); |
| |
| void |
| ttynam_sub (int *unit, char * name, gfc_charlen_type name_len) |
| { |
| gfc_unit *u; |
| char * n; |
| int i; |
| |
| memset (name, ' ', name_len); |
| u = find_unit (*unit); |
| if (u != NULL) |
| { |
| n = stream_ttyname (u->s); |
| if (n != NULL) |
| { |
| i = 0; |
| while (*n && i < name_len) |
| name[i++] = *(n++); |
| } |
| unlock_unit (u); |
| } |
| } |
| |
| |
| extern void ttynam (char **, gfc_charlen_type *, int); |
| export_proto(ttynam); |
| |
| void |
| ttynam (char ** name, gfc_charlen_type * name_len, int unit) |
| { |
| gfc_unit *u; |
| |
| u = find_unit (unit); |
| if (u != NULL) |
| { |
| *name = stream_ttyname (u->s); |
| if (*name != NULL) |
| { |
| *name_len = strlen (*name); |
| *name = strdup (*name); |
| unlock_unit (u); |
| return; |
| } |
| unlock_unit (u); |
| } |
| |
| *name_len = 0; |
| *name = NULL; |
| } |