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Commit | Line | Data |
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0ad19a3f | 1 | /* |
2 | * lxc: linux Container library | |
3 | * | |
4 | * (C) Copyright IBM Corp. 2007, 2008 | |
5 | * | |
6 | * Authors: | |
7 | * Daniel Lezcano <dlezcano at fr.ibm.com> | |
8 | * | |
9 | * This library is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU Lesser General Public | |
11 | * License as published by the Free Software Foundation; either | |
12 | * version 2.1 of the License, or (at your option) any later version. | |
13 | * | |
14 | * This library is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | * Lesser General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU Lesser General Public | |
20 | * License along with this library; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | */ | |
0ad19a3f | 23 | #include <stdio.h> |
0ad19a3f | 24 | #include <stdlib.h> |
25 | #include <string.h> | |
0ad19a3f | 26 | #include <errno.h> |
06efeb5c | 27 | #include <unistd.h> |
28 | #include <sys/param.h> | |
29 | #include <sys/signal.h> | |
0ad19a3f | 30 | #include <sys/types.h> |
31 | #include <sys/stat.h> | |
06efeb5c | 32 | #include <fcntl.h> |
0ad19a3f | 33 | |
b113348e | 34 | #include <lxc/lxc.h> |
0ad19a3f | 35 | |
2aa79ee7 | 36 | #define MAXPIDLEN 20 |
37 | ||
0ad19a3f | 38 | int lxc_stop(const char *name) |
39 | { | |
40 | char init[MAXPATHLEN]; | |
41 | char val[MAXPIDLEN]; | |
e2bcd7db | 42 | int fd, lock, ret = -LXC_ERROR_INTERNAL; |
0ad19a3f | 43 | size_t pid; |
44 | ||
45 | lock = lxc_get_lock(name); | |
1f3da8f8 | 46 | if (lock >= 0) { |
0ad19a3f | 47 | lxc_put_lock(lock); |
b0a33c1e | 48 | return -LXC_ERROR_ESRCH; |
0ad19a3f | 49 | } |
50 | ||
b0a33c1e | 51 | if (lock < 0 && lock != -LXC_ERROR_EBUSY) |
52 | return lock; | |
0ad19a3f | 53 | |
54 | snprintf(init, MAXPATHLEN, LXCPATH "/%s/init", name); | |
55 | fd = open(init, O_RDONLY); | |
56 | if (fd < 0) { | |
57 | lxc_log_syserror("failed to open init file for %s", name); | |
b0a33c1e | 58 | goto out_close; |
0ad19a3f | 59 | } |
60 | ||
61 | if (read(fd, val, sizeof(val)) < 0) { | |
62 | lxc_log_syserror("failed to read %s", init); | |
63 | goto out_close; | |
64 | } | |
65 | ||
66 | pid = atoi(val); | |
67 | ||
68 | if (kill(pid, SIGKILL)) { | |
69 | lxc_log_syserror("failed to kill %zd", pid); | |
70 | goto out_close; | |
71 | } | |
72 | ||
73 | if (unlink(init)) { | |
74 | lxc_log_syserror("failed to unlink %s", init); | |
75 | goto out_close; | |
76 | } | |
77 | ||
78 | ret = 0; | |
79 | ||
80 | out_close: | |
81 | close(fd); | |
0ad19a3f | 82 | return ret; |
83 | } |