void
nis_ping(nis_name name, uint32_t mtime, nis_object *obj)
{
nis_server **srvs;
nis_server *s, *list;
int i, ns;
nis_name thishost = nis_local_host();
if (obj) {
if (name == 0)
name = obj->DI_data.do_name;
list = obj->DI_data.do_servers.do_servers_val;
ns = obj->DI_data.do_servers.do_servers_len;
for (i = 0, s = &(list[0]); i < ns; i++, s = &(list[i])) {
if (nis_dir_cmp(s->name, thishost) == SAME_NAME) {
continue;
}
__nis_pingproc(s, name, mtime);
}
} else {
srvs = nis_getservlist(name);
if (! srvs)
return;
for (i = 0, s = srvs[0]; s; i++, s = srvs[i]) {
if (nis_dir_cmp(s->name, thishost) == SAME_NAME) {
continue;
}
__nis_pingproc(s, name, mtime);
}
nis_freeservlist(srvs);
}
}
/* Check that someone else don't have the same auth information already */
static
nis_error
auth_exists(char *princname, char *auth_name, char *auth_type, char *domain)
{
char sname[NIS_MAXNAMELEN+MAXHOSTNAMELEN+64];
nis_result *res;
nis_error status;
char *foundprinc;
(void) sprintf(sname, "[auth_name=%s,auth_type=%s],%s.%s",
auth_name, auth_type, CRED_TABLE, domain);
if (sname[strlen(sname)-1] != '.')
strcat(sname, ".");
/* Don't want FOLLOW_PATH here */
res = nis_list(sname,
MASTER_ONLY+USE_DGRAM+NO_AUTHINFO+FOLLOW_LINKS,
NULL, NULL);
status = res->status;
switch (res->status) {
case NIS_NOTFOUND:
break;
case NIS_TRYAGAIN :
(void) fprintf(stderr,
"%s: NIS+ server busy, try again later.\n",
program_name);
exit(1);
case NIS_PERMISSION :
(void) fprintf(stderr,
"%s: insufficient permission to look up old credentials.\n",
program_name);
exit(1);
case NIS_SUCCESS:
foundprinc = ENTRY_VAL(res->objects.objects_val, 0);
if (nis_dir_cmp(foundprinc, princname) != SAME_NAME) {
(void) fprintf(stderr,
"%s: %s credentials with auth_name '%s' already belong to '%s'.\n",
program_name, auth_type, auth_name, foundprinc);
exit(1);
}
break;
default:
(void) fprintf(stderr,
"%s: error looking at cred table, NIS+ error: %s\n",
program_name, nis_sperrno(res->status));
exit(1);
}
nis_freeresult(res);
return (status);
}
/*
* __nis_path
*
* Given two path strings, *from and *to, work out the list of names
* between them. The length of that path and the pointer to the list
* of pointers to the name strings are returned to the caller using
* path_length and namesp. As the names list is a pointer to a list of
* pointers, the caller must pass the address of the pointer to the
* pointer to the list of pointers, hence the unusual "char ***"
* type. It is the callers responsibility to free **namesp.
*/
nis_error
__nis_path(char *from, char *to, int *path_length, char ***namesp)
{
int i;
int n;
int start;
int end;
int st, dircmp, lastdircmp;
char *tfrom = from;
char *tto = to;
char **names;
dircmp = st = nis_dir_cmp(from, to);
if (st == BAD_NAME)
return (NIS_BADNAME);
/* figure out how long path is */
n = 0;
if (st == HIGHER_NAME) {
while ((dircmp = nis_dir_cmp(from, to)) == HIGHER_NAME) {
n++;
to = nis_domain_of(to);
}
if (dircmp != SAME_NAME) {
/* Unrecoverable error */
dircmp = BAD_NAME;
}
} else if (st == LOWER_NAME) {
from = nis_domain_of(from);
while ((dircmp = nis_dir_cmp(from, to)) == LOWER_NAME) {
n++;
from = nis_domain_of(from);
}
if (dircmp != SAME_NAME) {
/* Unrecoverable error */
dircmp = BAD_NAME;
}
n++; /* include actual target */
} else if (st == NOT_SEQUENTIAL) {
/* names are not sequential */
from = nis_domain_of(from);
while ((dircmp = nis_dir_cmp(from, to)) == NOT_SEQUENTIAL) {
n++;
from = nis_domain_of(from);
}
n++; /* include common parent */
lastdircmp = dircmp; /* Handle HIGHER or LOWER */
while ((dircmp = nis_dir_cmp(from, to)) == lastdircmp) {
n++;
lastdircmp = dircmp;
to = nis_domain_of(to);
}
if (dircmp != SAME_NAME) {
/* Unrecoverable error */
dircmp = BAD_NAME;
}
}
if (dircmp == BAD_NAME) {
syslog(LOG_WARNING, "__nis_path: Unable to walk "
"from %s to %s", tfrom, tto);
return (NIS_BADNAME);
}
names = malloc(n * sizeof (char *));
if (names == NULL)
return (NIS_NOMEMORY);
start = 0;
end = n;
from = tfrom;
to = tto;
/*
* Go through again, this time storing names.
* We shouldn't need to check the loops will terminate
* on the SAME_NAME condition as we've already checked for
* errors in the previous loop.
*/
if (st == HIGHER_NAME) {
while (nis_dir_cmp(from, to) != SAME_NAME) {
names[--end] = strdup(to);
to = nis_domain_of(to);
}
} else if (st == LOWER_NAME) {
from = nis_domain_of(from);
while (nis_dir_cmp(from, to) != SAME_NAME) {
names[start++] = strdup(from);
from = nis_domain_of(from);
}
names[start++] = strdup(to); /* include actual target */
} else if (st == NOT_SEQUENTIAL) {
/* names are not sequential */
from = nis_domain_of(from);
while (nis_dir_cmp(from, to) == NOT_SEQUENTIAL) {
names[start++] = strdup(from);
from = nis_domain_of(from);
}
names[start++] = strdup(from); /* include common parent */
while (nis_dir_cmp(from, to) != SAME_NAME) {
names[--end] = strdup(to);
to = nis_domain_of(to);
}
}
/* make sure all of the allocations were successful */
for (i = 0; i < n; i++) {
if (names[i] == NULL) {
__nis_path_free(names, n);
names = NULL;
break;
}
}
/* Set the return values */
*path_length = n;
*namesp = names;
return (NIS_SUCCESS);
}
