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0ad3c26c JG |
1 | /* |
2 | * Copyright (C) 2018 - Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License, version 2 only, as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
11 | * more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License along with | |
14 | * this program; if not, write to the Free Software Foundation, Inc., 51 | |
15 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
16 | */ | |
17 | ||
18 | #include <unistd.h> | |
3abcca27 JG |
19 | #include <stdio.h> |
20 | #include <stdlib.h> | |
0ad3c26c | 21 | #include <common/fd-tracker/utils.h> |
3abcca27 JG |
22 | #include <common/utils.h> |
23 | ||
24 | static | |
25 | int open_pipe_cloexec(void *data, int *fds) | |
26 | { | |
27 | int ret; | |
28 | ||
29 | ret = utils_create_pipe_cloexec(fds); | |
30 | if (ret < 0) { | |
31 | goto end; | |
32 | } | |
33 | end: | |
34 | return ret; | |
35 | } | |
36 | ||
37 | static | |
38 | int close_pipe(void *data, int *pipe) | |
39 | { | |
40 | utils_close_pipe(pipe); | |
41 | pipe[0] = pipe[1] = -1; | |
42 | return 0; | |
43 | } | |
0ad3c26c JG |
44 | |
45 | int fd_tracker_util_close_fd(void *unused, int *fd) | |
46 | { | |
47 | return close(*fd); | |
48 | } | |
3abcca27 JG |
49 | |
50 | int fd_tracker_util_pipe_open_cloexec(struct fd_tracker *tracker, | |
51 | const char *name, int *pipe) | |
52 | { | |
53 | int ret; | |
54 | const char *name_prefix; | |
55 | char *names[2]; | |
56 | ||
57 | name_prefix = name ? name : "Unknown pipe"; | |
58 | ret = asprintf(&names[0], "%s (read end)", name_prefix); | |
59 | if (ret < 0) { | |
60 | goto end; | |
61 | } | |
62 | ret = asprintf(&names[1], "%s (write end)", name_prefix); | |
63 | if (ret < 0) { | |
64 | goto end; | |
65 | } | |
66 | ||
67 | ret = fd_tracker_open_unsuspendable_fd(tracker, pipe, | |
68 | (const char **) names, 2, open_pipe_cloexec, NULL); | |
69 | free(names[0]); | |
70 | free(names[1]); | |
71 | end: | |
72 | return ret; | |
73 | } | |
74 | ||
75 | int fd_tracker_util_pipe_close(struct fd_tracker *tracker, int *pipe) | |
76 | { | |
77 | return fd_tracker_close_unsuspendable_fd(tracker, | |
78 | pipe, 2, close_pipe, NULL); | |
79 | } |