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
|
#include <sys/param.h>
#include <sys/mount.h>
#include <err.h>
#include <sysexits.h>
#include <unistd.h>
#include <stdlib.h>
#include <signal.h>
static void usage(void);
int
main(int argc, char** argv)
{
struct statfs* mntbuf;
int mntcount, i;
int aflag=0;
int ch;
while ( (ch = getopt(argc, argv, "a")) != -1) {
switch (ch) {
case 'a':
aflag=1;
break;
case '?':
default:
usage();
}
}
argc -= optind;
argv += optind;
if (aflag && argc != 0)
usage();
if (!aflag && argc == 0)
usage();
for (; argc>0 || aflag; aflag?(void)(aflag=0):(void)(argc--, argv++)) {
char abspath[MAXPATHLEN];
pid_t pid=0;
if (argc > 0) {
if (realpath(argv[0], abspath) == 0) {
warn(abspath);
continue;
}
}
mntcount=getmntinfo(&mntbuf, MNT_NOWAIT);
if (mntcount < 0)
err(EX_OSERR, "getmntinfo");
for (i=0; i<mntcount; i++) {
char* s;
int error;
if (argc > 0 && strcmp(abspath, mntbuf[i].f_mntonname) != 0) continue;
if (mntbuf[i].f_type != MOUNT_NFS) continue;
if (strncmp(mntbuf[i].f_mntfromname, "rumba-", 6) != 0) continue;
pid=strtoul(mntbuf[i].f_mntfromname+6, &s, 10);
if (*s) continue;
error = unmount (mntbuf[i].f_mntonname, 0);
if (error == 0) {
kill (pid, SIGHUP);
} else {
warn(mntbuf[i].f_mntonname);
}
}
if (argc > 0 && !pid)
warnx("%s: not currently mounted", abspath);
}
}
void
usage(void)
{
errx(EX_USAGE, "Usage: unrumba [-a] [node]");
}
|
