/src/proftpd/src/pidfile.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * ProFTPD - FTP server daemon |
3 | | * Copyright (c) 2007-2020 The ProFTPD Project team |
4 | | * |
5 | | * This program is free software; you can redistribute it and/or modify |
6 | | * it under the terms of the GNU General Public License as published by |
7 | | * the Free Software Foundation; either version 2 of the License, or |
8 | | * (at your option) any later version. |
9 | | * |
10 | | * This program is distributed in the hope that it will be useful, |
11 | | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | | * GNU General Public License for more details. |
14 | | * |
15 | | * You should have received a copy of the GNU General Public License |
16 | | * along with this program; if not, write to the Free Software |
17 | | * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA. |
18 | | * |
19 | | * As a special exemption, The ProFTPD Project team and other respective |
20 | | * copyright holders give permission to link this program with OpenSSL, and |
21 | | * distribute the resulting executable, without including the source code for |
22 | | * OpenSSL in the source distribution. |
23 | | */ |
24 | | |
25 | | /* Pidfile management */ |
26 | | |
27 | | #include "conf.h" |
28 | | #include "privs.h" |
29 | | |
30 | | static const char *pidfile_path = PR_PID_FILE_PATH; |
31 | | |
32 | 0 | const char *pr_pidfile_get(void) { |
33 | 0 | return pidfile_path; |
34 | 0 | } |
35 | | |
36 | 0 | int pr_pidfile_set(const char *path) { |
37 | 0 | if (path == NULL) { |
38 | 0 | errno = EINVAL; |
39 | 0 | return -1; |
40 | 0 | } |
41 | | |
42 | | /* Do not allow relative paths. */ |
43 | 0 | if (*path != '/') { |
44 | 0 | errno = EINVAL; |
45 | 0 | return -1; |
46 | 0 | } |
47 | | |
48 | 0 | pidfile_path = pstrdup(permanent_pool, path); |
49 | 0 | return 0; |
50 | 0 | } |
51 | | |
52 | 0 | int pr_pidfile_write(void) { |
53 | 0 | int fd, res, xerrno; |
54 | 0 | mode_t mode = 0644; |
55 | |
|
56 | 0 | PRIVS_ROOT |
57 | 0 | fd = open(pidfile_path, O_WRONLY|O_CREAT|O_TRUNC, mode); |
58 | 0 | xerrno = errno; |
59 | 0 | PRIVS_RELINQUISH |
60 | |
|
61 | 0 | if (fd < 0) { |
62 | 0 | errno = xerrno; |
63 | 0 | return -1; |
64 | 0 | } |
65 | | |
66 | | /* Ensure that our permissions are as desired, regardless of umask. */ |
67 | 0 | PRIVS_ROOT |
68 | 0 | res = fchmod(fd, mode); |
69 | 0 | xerrno = errno; |
70 | 0 | PRIVS_RELINQUISH |
71 | |
|
72 | 0 | if (res < 0) { |
73 | 0 | fprintf(stderr, "error setting permissions for PidFile '%s': %s\n", |
74 | 0 | pidfile_path, strerror(xerrno)); |
75 | 0 | } |
76 | |
|
77 | 0 | dprintf(fd, "%lu\n", (unsigned long) getpid()); |
78 | 0 | if (close(fd) < 0) { |
79 | 0 | fprintf(stderr, "error writing PidFile '%s': %s\n", pidfile_path, |
80 | 0 | strerror(errno)); |
81 | 0 | } |
82 | |
|
83 | 0 | return 0; |
84 | 0 | } |
85 | | |
86 | 0 | int pr_pidfile_remove(void) { |
87 | 0 | return unlink(pidfile_path); |
88 | 0 | } |