]>
Commit | Line | Data |
---|---|---|
b43c6fe2 BP |
1 | #line 2 "@srcdir@/lib/dirs.c.in" |
2 | /* | |
3 | * Copyright (c) 2008, 2009, 2010 Nicira Networks. | |
4 | * | |
5 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
6 | * you may not use this file except in compliance with the License. | |
7 | * You may obtain a copy of the License at: | |
8 | * | |
9 | * http://www.apache.org/licenses/LICENSE-2.0 | |
10 | * | |
11 | * Unless required by applicable law or agreed to in writing, software | |
12 | * distributed under the License is distributed on an "AS IS" BASIS, | |
13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
14 | * See the License for the specific language governing permissions and | |
15 | * limitations under the License. | |
16 | */ | |
17 | ||
18 | #include <config.h> | |
19 | #include "dirs.h" | |
20 | #include <stdlib.h> | |
21 | ||
22 | struct directory { | |
23 | const char *value; /* Actual value; NULL if not yet determined. */ | |
24 | const char *default_value; /* Default value. */ | |
25 | const char *var_name; /* Environment variable to override default. */ | |
26 | }; | |
27 | ||
28 | static const char * | |
29 | get_dir(struct directory *d) | |
30 | { | |
31 | if (!d->value) { | |
32 | d->value = getenv(d->var_name); | |
33 | if (!d->value || !d->value[0]) { | |
34 | d->value = d->default_value; | |
35 | } | |
36 | } | |
37 | return d->value; | |
38 | } | |
39 | ||
40 | const char * | |
41 | ovs_pkgdatadir(void) | |
42 | { | |
43 | static struct directory d = { NULL, @pkgdatadir@, "OVS_PKGDATADIR" }; | |
44 | return get_dir(&d); | |
45 | } | |
46 | ||
47 | const char * | |
48 | ovs_rundir(void) | |
49 | { | |
50 | static struct directory d = { NULL, @RUNDIR@, "OVS_RUNDIR" }; | |
51 | return get_dir(&d); | |
52 | } | |
53 | ||
54 | const char * | |
55 | ovs_logdir(void) | |
56 | { | |
57 | static struct directory d = { NULL, @LOGDIR@, "OVS_LOGDIR" }; | |
58 | return get_dir(&d); | |
59 | } | |
60 | ||
61 | const char * | |
62 | ovs_bindir(void) | |
63 | { | |
64 | static struct directory d = { NULL, @bindir@, "OVS_BINDIR" }; | |
65 | return get_dir(&d); | |
66 | } |