1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
/* -*- mode: c; c-file-style: "bsd"; -*- */
/*
Copyright (C) 2004 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <limits.h>
#include <sys/mman.h>
#include "jack/unlock.h"
static char* blacklist[] = {
"/libgtk",
"/libqt",
"/libfltk",
"/wine/",
NULL
};
static char* whitelist[] = {
"/libc-",
"/libardour",
NULL
};
static char* library_roots[] = {
"/lib",
"/usr/lib",
"/usr/local/lib",
"/usr/X11R6/lib",
"/opt/lib", /* solaris-y */
"/opt/local/lib", /* common on OS X */
NULL
};
void
cleanup_mlock ()
{
FILE* map;
size_t start;
size_t end;
char path[PATH_MAX+1];
int unlock;
int i;
int whoknows;
int looks_like_library;
snprintf (path, sizeof(path), "/proc/%d/maps", getpid());
if ((map = fopen (path, "r")) == NULL) {
fprintf (stderr, "can't open map file\n");
return;
}
while (!feof (map)) {
unlock = 0;
if (fscanf (map, "%zx-%zx %*s %*x %*d:%*d %d",
&start, &end, &whoknows) != 3) {
break;
}
if (!whoknows) {
continue;
}
fscanf (map, " %[^\n]", path);
/* if it doesn't look like a library, forget it */
looks_like_library = 0;
for (i = 0; library_roots[i]; ++i) {
if ((looks_like_library = (strstr (path, library_roots[i]) == path))) {
break;
}
}
if (!looks_like_library) {
continue;
}
for (i = 0; blacklist[i]; ++i) {
if (strstr (path, blacklist[i])) {
unlock = 1;
break;
}
}
if (end - start > 1048576) {
unlock = 1;
}
for (i = 0; whitelist[i]; ++i) {
if (strstr (path, whitelist[i])) {
unlock = 0;
break;
}
}
if (unlock) {
fprintf (stderr, "unlocking %s\n", path);
munlock ((char *) start, end - start);
}
}
fclose (map);
}
|
