| /* Implementation of the SYMLNK intrinsic. |
| 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., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #include "config.h" |
| #include "libgfortran.h" |
| |
| #include <errno.h> |
| |
| #include "../io/io.h" |
| |
| #ifdef HAVE_STRING_H |
| #include <string.h> |
| #endif |
| #ifdef HAVE_UNISTD_H |
| #include <unistd.h> |
| #endif |
| |
| /* SUBROUTINE SYMLNK(PATH1, PATH2, STATUS) |
| CHARACTER(len=*), INTENT(IN) :: PATH1, PATH2 |
| INTEGER, INTENT(OUT), OPTIONAL :: STATUS */ |
| |
| #ifdef HAVE_SYMLINK |
| extern void symlnk_i4_sub (char *, char *, GFC_INTEGER_4 *, gfc_charlen_type, |
| gfc_charlen_type); |
| iexport_proto(symlnk_i4_sub); |
| |
| void |
| symlnk_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 = symlink (str1, str2); |
| |
| if (status != NULL) |
| *status = (val == 0) ? 0 : errno; |
| } |
| iexport(symlnk_i4_sub); |
| |
| extern void symlnk_i8_sub (char *, char *, GFC_INTEGER_8 *, gfc_charlen_type, |
| gfc_charlen_type); |
| iexport_proto(symlnk_i8_sub); |
| |
| void |
| symlnk_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 = symlink (str1, str2); |
| |
| if (status != NULL) |
| *status = (val == 0) ? 0 : errno; |
| } |
| iexport(symlnk_i8_sub); |
| |
| extern GFC_INTEGER_4 symlnk_i4 (char *, char *, gfc_charlen_type, |
| gfc_charlen_type); |
| export_proto(symlnk_i4); |
| |
| GFC_INTEGER_4 |
| symlnk_i4 (char *path1, char *path2, gfc_charlen_type path1_len, |
| gfc_charlen_type path2_len) |
| { |
| GFC_INTEGER_4 val; |
| symlnk_i4_sub (path1, path2, &val, path1_len, path2_len); |
| return val; |
| } |
| |
| extern GFC_INTEGER_8 symlnk_i8 (char *, char *, gfc_charlen_type, |
| gfc_charlen_type); |
| export_proto(symlnk_i8); |
| |
| GFC_INTEGER_8 |
| symlnk_i8 (char *path1, char *path2, gfc_charlen_type path1_len, |
| gfc_charlen_type path2_len) |
| { |
| GFC_INTEGER_8 val; |
| symlnk_i8_sub (path1, path2, &val, path1_len, path2_len); |
| return val; |
| } |
| #endif |