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99dee823 | 1 | /* Copyright (C) 2002-2021 Free Software Foundation, Inc. |
6de9cd9a DN |
2 | Contributed by Andy Vaught |
3 | ||
4 | This file is part of the GNU Fortran 95 runtime library (libgfortran). | |
5 | ||
6 | Libgfortran is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
748086b7 | 8 | the Free Software Foundation; either version 3, or (at your option) |
6de9cd9a DN |
9 | any later version. |
10 | ||
11 | Libgfortran is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
748086b7 JJ |
16 | Under Section 7 of GPL version 3, you are granted additional |
17 | permissions described in the GCC Runtime Library Exception, version | |
18 | 3.1, as published by the Free Software Foundation. | |
19 | ||
20 | You should have received a copy of the GNU General Public License and | |
21 | a copy of the GCC Runtime Library Exception along with this program; | |
22 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
23 | <http://www.gnu.org/licenses/>. */ | |
6de9cd9a | 24 | |
6de9cd9a | 25 | #include "io.h" |
92cbdb68 | 26 | #include "unix.h" |
2b4c9065 | 27 | #include "async.h" |
10c682a0 | 28 | #include <limits.h> |
ff504cc2 GP |
29 | #if !HAVE_UNLINK_OPEN_FILE |
30 | #include <string.h> | |
31 | #endif | |
6de9cd9a DN |
32 | |
33 | typedef enum | |
cdc34b50 | 34 | { CLOSE_INVALID = - 1, CLOSE_DELETE, CLOSE_KEEP, CLOSE_UNSPECIFIED } |
6de9cd9a DN |
35 | close_status; |
36 | ||
09003779 | 37 | static const st_option status_opt[] = { |
6de9cd9a DN |
38 | {"keep", CLOSE_KEEP}, |
39 | {"delete", CLOSE_DELETE}, | |
4b6903ec | 40 | {NULL, 0} |
6de9cd9a DN |
41 | }; |
42 | ||
43 | ||
5e805e44 | 44 | extern void st_close (st_parameter_close *); |
7d7b8bfe RH |
45 | export_proto(st_close); |
46 | ||
6de9cd9a | 47 | void |
5e805e44 | 48 | st_close (st_parameter_close *clp) |
6de9cd9a DN |
49 | { |
50 | close_status status; | |
909087e0 | 51 | gfc_unit *u; |
10c682a0 | 52 | #if !HAVE_UNLINK_OPEN_FILE |
f29876bb | 53 | char *path; |
10c682a0 FXC |
54 | |
55 | path = NULL; | |
56 | #endif | |
6de9cd9a | 57 | |
5e805e44 | 58 | library_start (&clp->common); |
6de9cd9a | 59 | |
5e805e44 JJ |
60 | status = !(clp->common.flags & IOPARM_CLOSE_HAS_STATUS) ? CLOSE_UNSPECIFIED : |
61 | find_option (&clp->common, clp->status, clp->status_len, | |
62 | status_opt, "Bad STATUS parameter in CLOSE statement"); | |
6de9cd9a | 63 | |
cdc34b50 TK |
64 | if (status == CLOSE_INVALID) |
65 | { | |
66 | library_end (); | |
67 | return; | |
68 | } | |
69 | ||
2b4c9065 NK |
70 | u = find_unit (clp->common.unit); |
71 | ||
72 | if (ASYNC_IO && u && u->au) | |
73 | if (async_wait (&(clp->common), u->au)) | |
74 | { | |
75 | library_end (); | |
76 | return; | |
77 | } | |
78 | ||
5e805e44 | 79 | if ((clp->common.flags & IOPARM_LIBRETURN_MASK) != IOPARM_LIBRETURN_OK) |
e0fd73d4 FXC |
80 | { |
81 | library_end (); | |
6de9cd9a | 82 | return; |
e0fd73d4 | 83 | } |
6de9cd9a | 84 | |
6de9cd9a DN |
85 | if (u != NULL) |
86 | { | |
0ef33d44 FR |
87 | if (close_share (u) < 0) |
88 | generate_error (&clp->common, LIBERROR_OS, "Problem in CLOSE"); | |
6de9cd9a DN |
89 | if (u->flags.status == STATUS_SCRATCH) |
90 | { | |
91 | if (status == CLOSE_KEEP) | |
d74b97cc | 92 | generate_error (&clp->common, LIBERROR_BAD_OPTION, |
6de9cd9a | 93 | "Can't KEEP a scratch file on CLOSE"); |
10c682a0 | 94 | #if !HAVE_UNLINK_OPEN_FILE |
0e05c303 | 95 | path = strdup (u->filename); |
10c682a0 | 96 | #endif |
6de9cd9a DN |
97 | } |
98 | else | |
99 | { | |
100 | if (status == CLOSE_DELETE) | |
0ef33d44 FR |
101 | { |
102 | if (u->flags.readonly) | |
103 | generate_warning (&clp->common, "STATUS set to DELETE on CLOSE" | |
104 | " but file protected by READONLY specifier"); | |
105 | else | |
106 | { | |
10c682a0 | 107 | #if HAVE_UNLINK_OPEN_FILE |
0e34715e JD |
108 | |
109 | if (remove (u->filename)) | |
110 | generate_error (&clp->common, LIBERROR_OS, | |
9faf6e70 | 111 | "File cannot be deleted"); |
10c682a0 | 112 | #else |
0ef33d44 | 113 | path = strdup (u->filename); |
10c682a0 | 114 | #endif |
0ef33d44 FR |
115 | } |
116 | } | |
6de9cd9a DN |
117 | } |
118 | ||
119 | close_unit (u); | |
10c682a0 FXC |
120 | |
121 | #if !HAVE_UNLINK_OPEN_FILE | |
122 | if (path != NULL) | |
4269f19c | 123 | { |
2ee43ae6 | 124 | if (remove (path)) |
0e34715e | 125 | generate_error (&clp->common, LIBERROR_OS, |
9faf6e70 | 126 | "File cannot be deleted"); |
4269f19c JB |
127 | free (path); |
128 | } | |
10c682a0 | 129 | #endif |
6de9cd9a | 130 | } |
b8d403b4 JD |
131 | |
132 | /* CLOSE on unconnected unit is legal and a no-op: F95 std., 9.3.5. */ | |
6de9cd9a DN |
133 | library_end (); |
134 | } |