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
|
/*
* support/export/rmntab.c
*
* Interface to the rmnt file.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "xmalloc.h"
#include "misc.h"
#include "nfslib.h"
#include "exportfs.h"
#include "xio.h"
#include "xlog.h"
int
rmtab_read(void)
{
struct rmtabent *rep;
nfs_export *exp = NULL;
setrmtabent("r");
while ((rep = getrmtabent(1, NULL)) != NULL) {
struct hostent *hp = NULL;
int htype;
htype = client_gettype(rep->r_client);
if ((htype == MCL_FQDN || htype == MCL_SUBNETWORK)
&& (hp = gethostbyname (rep->r_client))
&& (hp = hostent_dup (hp),
exp = export_allowed (hp, rep->r_path))) {
/* see if the entry already exists, otherwise this was an instantiated
* wild card, and we must add it
*/
nfs_export *exp2 = export_lookup(rep->r_client,
exp->m_export.e_path, 0);
if (!exp2) {
struct exportent ee;
dupexportent(&ee, &exp->m_export);
ee.e_hostname = rep->r_client;
exp2 = export_create(&ee, 0);
exp2->m_changed = exp->m_changed;
}
free (hp);
exp2->m_mayexport = 1;
} else if (hp) /* export_allowed failed */
free(hp);
}
if (errno == EINVAL) {
/* Something goes wrong. We need to fix the rmtab
file. */
int lockid;
FILE *fp;
if ((lockid = xflock(_PATH_RMTABLCK, "w")) < 0)
return -1;
rewindrmtabent();
if (!(fp = fsetrmtabent(_PATH_RMTABTMP, "w"))) {
endrmtabent ();
xfunlock(lockid);
return -1;
}
while ((rep = getrmtabent(0, NULL)) != NULL) {
fputrmtabent(fp, rep, NULL);
}
if (rename(_PATH_RMTABTMP, _PATH_RMTAB) < 0) {
xlog(L_ERROR, "couldn't rename %s to %s",
_PATH_RMTABTMP, _PATH_RMTAB);
}
endrmtabent();
fendrmtabent(fp);
xfunlock(lockid);
}
else {
endrmtabent();
}
return 0;
}
|
