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/*
* support/export/rmntab.c
*
* Interface to the rmnt file.
*
*/
#include "config.h"
#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;
setrmtabent("r");
while ((rep = getrmtabent(1)) != NULL) {
exp = export_lookup(rep->r_client, rep->r_path);
if (!exp) {
struct exportent *xp;
struct hostent *hp;
int htype;
htype = client_gettype(rep->r_client);
if (htype == MCL_FQDN
&& (hp = gethostbyname (rep->r_client), hp)
&& (hp = hostent_dup (hp),
xp = export_allowed (hp, rep->r_path))) {
strncpy (xp->e_hostname, rep->r_client,
sizeof (xp->e_hostname) - 1);
xp->e_hostname[sizeof (xp->e_hostname) -1] = '\0';
exp = export_create(xp);
free (hp);
}
if (!exp)
continue;
exp->m_mayexport = 1;
}
}
if (errno == EINVAL) {
/* Something goes wrong. We need to fix the rmtab
file. */
int lockid;
FILE *fp;
if ((lockid = xflock(_PATH_RMTAB, "w")) < 0)
return -1;
rewindrmtabent();
if (!(fp = fsetrmtabent(_PATH_RMTABTMP, "w"))) {
endrmtabent ();
xfunlock(lockid);
return -1;
}
while ((rep = getrmtabent(0)) != NULL) {
fputrmtabent(fp, rep);
}
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;
}
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