enum nss_status
_nss_nisplus_setnetgrent (const char *group, struct __netgrent *netgrp)
{
char buf[strlen (group) + 25];
if (group == NULL || group[0] == '\0')
return NSS_STATUS_UNAVAIL;
enum nss_status status = NSS_STATUS_SUCCESS;
snprintf (buf, sizeof (buf), "[name=%s],netgroup.org_dir", group);
netgrp->data = (char *) nis_list (buf, EXPAND_NAME, NULL, NULL);
if (netgrp->data == NULL)
{
__set_errno (ENOMEM);
status = NSS_STATUS_TRYAGAIN;
}
else if (niserr2nss (((nis_result *) netgrp->data)->status)
!= NSS_STATUS_SUCCESS)
{
status = niserr2nss (((nis_result *) netgrp->data)->status);
internal_endnetgrent (netgrp);
}
else
{
netgrp->data_size = ((nis_result *) netgrp->data)->objects.objects_len;
netgrp->position = 0;
netgrp->first = 1;
}
return status;
}
enum nss_status
_nss_nisplus_getgrnam_r (const char *name, struct group *gr,
char *buffer, size_t buflen, int *errnop)
{
int parse_res;
if (grp_tablename_val == NULL)
{
enum nss_status status = _nss_grp_create_tablename (errnop);
if (status != NSS_STATUS_SUCCESS)
return status;
}
if (name == NULL)
{
*errnop = EINVAL;
return NSS_STATUS_NOTFOUND;
}
nis_result *result;
char buf[strlen (name) + 9 + grp_tablename_len];
int olderr = errno;
snprintf (buf, sizeof (buf), "[name=%s],%s", name, grp_tablename_val);
result = nis_list (buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL);
if (result == NULL)
{
*errnop = ENOMEM;
return NSS_STATUS_TRYAGAIN;
}
if (__glibc_unlikely (niserr2nss (result->status) != NSS_STATUS_SUCCESS))
{
enum nss_status status = niserr2nss (result->status);
nis_freeresult (result);
return status;
}
parse_res = _nss_nisplus_parse_grent (result, gr, buffer, buflen, errnop);
nis_freeresult (result);
if (__glibc_unlikely (parse_res < 1))
{
if (parse_res == -1)
{
*errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
else
{
__set_errno (olderr);
return NSS_STATUS_NOTFOUND;
}
}
return NSS_STATUS_SUCCESS;
}
static enum nss_status
internal_nisplus_getspent_r (struct spwd *sp, char *buffer, size_t buflen,
int *errnop)
{
int parse_res;
/* Get the next entry until we found a correct one. */
do
{
nis_result *saved_res;
if (result == NULL)
{
saved_res = NULL;
if (tablename_val == NULL)
{
enum nss_status status = _nss_create_tablename (errnop);
if (status != NSS_STATUS_SUCCESS)
return status;
}
result = nis_first_entry (tablename_val);
if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
return niserr2nss (result->status);
}
else
{
nis_result *res;
saved_res = result;
res = nis_next_entry (tablename_val, &result->cookie);
result = res;
if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
{
nis_freeresult (saved_res);
return niserr2nss (result->status);
}
}
parse_res = _nss_nisplus_parse_spent (result, sp, buffer,
buflen, errnop);
if (parse_res == -1)
{
nis_freeresult (result);
result = saved_res;
*errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
else
{
if (saved_res)
nis_freeresult (saved_res);
}
} while (!parse_res);
return NSS_STATUS_SUCCESS;
}
enum nss_status
_nss_nisplus_getpwuid_r (const uid_t uid, struct passwd *pw,
char *buffer, size_t buflen, int *errnop)
{
if (pwd_tablename_val == NULL)
{
enum nss_status status = _nss_pwd_create_tablename (errnop);
if (status != NSS_STATUS_SUCCESS)
return status;
}
int parse_res;
nis_result *result;
char buf[8 + 3 * sizeof (unsigned long int) + pwd_tablename_len];
int olderr = errno;
snprintf (buf, sizeof (buf), "[uid=%lu],%s",
(unsigned long int) uid, pwd_tablename_val);
result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS | USE_DGRAM, NULL, NULL);
if (result == NULL)
{
*errnop = ENOMEM;
return NSS_STATUS_TRYAGAIN;
}
if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
{
enum nss_status status = niserr2nss (result->status);
errno = olderr;
nis_freeresult (result);
return status;
}
parse_res = _nss_nisplus_parse_pwent (result, pw, buffer, buflen, errnop);
nis_freeresult (result);
if (parse_res < 1)
{
if (parse_res == -1)
{
*errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
else
{
errno = olderr;
return NSS_STATUS_NOTFOUND;
}
}
return NSS_STATUS_SUCCESS;
}
enum nss_status
_nss_nisplus_gethostton_r (const char *name, struct etherent *eth,
char *buffer, size_t buflen, int *errnop)
{
if (tablename_val == NULL)
{
enum nss_status status = _nss_create_tablename (errnop);
if (status != NSS_STATUS_SUCCESS)
return status;
}
if (name == NULL)
{
*errnop = EINVAL;
return NSS_STATUS_UNAVAIL;
}
char buf[strlen (name) + 9 + tablename_len];
int olderr = errno;
snprintf (buf, sizeof (buf), "[name=%s],%s", name, tablename_val);
nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS | USE_DGRAM,
NULL, NULL);
if (result == NULL)
{
*errnop = ENOMEM;
return NSS_STATUS_TRYAGAIN;
}
if (__glibc_unlikely (niserr2nss (result->status) != NSS_STATUS_SUCCESS))
{
enum nss_status status = niserr2nss (result->status);
nis_freeresult (result);
return status;
}
int parse_res = _nss_nisplus_parse_etherent (result, eth, buffer,
buflen, errnop);
/* We do not need the lookup result anymore. */
nis_freeresult (result);
if (__glibc_unlikely (parse_res < 1))
{
__set_errno (olderr);
if (parse_res == -1)
return NSS_STATUS_TRYAGAIN;
return NSS_STATUS_NOTFOUND;
}
return NSS_STATUS_SUCCESS;
}
enum nss_status
_nss_nisplus_getgrgid_r (const gid_t gid, struct group *gr,
char *buffer, size_t buflen, int *errnop)
{
if (grp_tablename_val == NULL)
{
enum nss_status status = _nss_grp_create_tablename (errnop);
if (status != NSS_STATUS_SUCCESS)
return status;
}
int parse_res;
nis_result *result;
char buf[8 + 3 * sizeof (unsigned long int) + grp_tablename_len];
int olderr = errno;
snprintf (buf, sizeof (buf), "[gid=%lu],%s",
(unsigned long int) gid, grp_tablename_val);
result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
if (result == NULL)
{
*errnop = ENOMEM;
return NSS_STATUS_TRYAGAIN;
}
if (__glibc_unlikely (niserr2nss (result->status) != NSS_STATUS_SUCCESS))
{
enum nss_status status = niserr2nss (result->status);
__set_errno (olderr);
nis_freeresult (result);
return status;
}
parse_res = _nss_nisplus_parse_grent (result, gr, buffer, buflen, errnop);
nis_freeresult (result);
if (__glibc_unlikely (parse_res < 1))
{
__set_errno (olderr);
if (parse_res == -1)
{
*errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
else
return NSS_STATUS_NOTFOUND;
}
return NSS_STATUS_SUCCESS;
}
enum nss_status
_nss_nisplus_getpwnam_r (const char *name, struct passwd *pw,
char *buffer, size_t buflen, int *errnop)
{
int parse_res;
if (tablename_val == NULL)
{
enum nss_status status = _nss_create_tablename (errnop);
if (status != NSS_STATUS_SUCCESS)
return status;
}
if (name == NULL)
{
*errnop = EINVAL;
return NSS_STATUS_UNAVAIL;
}
else
{
nis_result *result;
char buf[strlen (name) + 24 + tablename_len];
sprintf (buf, "[name=%s],%s", name, tablename_val);
result = nis_list(buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
{
enum nss_status status = niserr2nss (result->status);
nis_freeresult (result);
return status;
}
parse_res = _nss_nisplus_parse_pwent (result, pw, buffer, buflen,
errnop);
nis_freeresult (result);
if (parse_res < 1)
{
if (parse_res == -1)
{
*errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
else
return NSS_STATUS_NOTFOUND;
}
return NSS_STATUS_SUCCESS;
}
}
static enum nss_status
internal_setgrent (int *errnop)
{
enum nss_status status = NSS_STATUS_SUCCESS;
if (grp_tablename_val == NULL)
status = _nss_grp_create_tablename (errnop);
if (status == NSS_STATUS_SUCCESS)
{
ibreq = __create_ib_request (grp_tablename_val, 0);
if (ibreq == NULL)
{
*errnop = errno;
return NSS_STATUS_TRYAGAIN;
}
nis_error retcode = __prepare_niscall (grp_tablename_val, &dir, &bptr, 0);
if (retcode != NIS_SUCCESS)
{
nis_free_request (ibreq);
ibreq = NULL;
status = niserr2nss (retcode);
}
}
return status;
}
static enum nss_status
internal_nisplus_getgrent_r (struct group *gr, char *buffer, size_t buflen,
int *errnop)
{
int parse_res = -1;
enum nss_status retval = NSS_STATUS_SUCCESS;
/* Get the next entry until we found a correct one. */
do
{
nis_error status;
nis_result result;
memset (&result, '\0', sizeof (result));
if (cursor.n_bytes == NULL)
{
if (ibreq == NULL)
{
retval = internal_setgrent (errnop);
if (retval != NSS_STATUS_SUCCESS)
return retval;
}
status = __do_niscall3 (&bptr, NIS_IBFIRST,
(xdrproc_t) _xdr_ib_request,
(caddr_t) ibreq,
(xdrproc_t) _xdr_nis_result,
(caddr_t) &result,
0, NULL);
}
else
{
ibreq->ibr_cookie.n_bytes = cursor.n_bytes;
ibreq->ibr_cookie.n_len = cursor.n_len;
status = __do_niscall3 (&bptr, NIS_IBNEXT,
(xdrproc_t) _xdr_ib_request,
(caddr_t) ibreq,
(xdrproc_t) _xdr_nis_result,
(caddr_t) &result,
0, NULL);
ibreq->ibr_cookie.n_bytes = NULL;
ibreq->ibr_cookie.n_len = 0;
}
if (status != NIS_SUCCESS)
return niserr2nss (status);
if (NIS_RES_STATUS (&result) == NIS_NOTFOUND)
{
/* No more entries on this server. This means we have to go
to the next server on the path. */
status = __follow_path (&tablepath, &tableptr, ibreq, &bptr);
if (status != NIS_SUCCESS)
return niserr2nss (status);
directory_obj *newdir = NULL;
dir_binding newbptr;
status = __prepare_niscall (ibreq->ibr_name, &newdir, &newbptr, 0);
if (status != NIS_SUCCESS)
return niserr2nss (status);
nis_free_directory (dir);
dir = newdir;
__nisbind_destroy (&bptr);
bptr = newbptr;
xdr_free ((xdrproc_t) xdr_netobj, (char *) &result.cookie);
result.cookie.n_bytes = NULL;
result.cookie.n_len = 0;
parse_res = 0;
goto next;
}
else if (NIS_RES_STATUS (&result) != NIS_SUCCESS)
return niserr2nss (NIS_RES_STATUS (&result));
parse_res = _nss_nisplus_parse_grent (&result, gr,
buffer, buflen, errnop);
if (__glibc_unlikely (parse_res == -1))
{
*errnop = ERANGE;
retval = NSS_STATUS_TRYAGAIN;
goto freeres;
}
next:
/* Free the old cursor. */
xdr_free ((xdrproc_t) xdr_netobj, (char *) &cursor);
/* Remember the new one. */
cursor.n_bytes = result.cookie.n_bytes;
cursor.n_len = result.cookie.n_len;
/* Free the result structure. NB: we do not remove the cookie. */
result.cookie.n_bytes = NULL;
result.cookie.n_len = 0;
freeres:
xdr_free ((xdrproc_t) _xdr_nis_result, (char *) &result);
memset (&result, '\0', sizeof (result));
}
while (!parse_res);
return retval;
}
enum nss_status
_nss_nisplus_getntohost_r (const struct ether_addr *addr, struct etherent *eth,
char *buffer, size_t buflen, int *errnop)
{
if (tablename_val == NULL)
{
__libc_lock_lock (lock);
enum nss_status status = _nss_create_tablename (errnop);
__libc_lock_unlock (lock);
if (status != NSS_STATUS_SUCCESS)
return status;
}
if (addr == NULL)
{
*errnop = EINVAL;
return NSS_STATUS_UNAVAIL;
}
char buf[26 + tablename_len];
snprintf (buf, sizeof (buf),
"[addr=%" PRIx8 ":%" PRIx8 ":%" PRIx8 ":%" PRIx8 ":%" PRIx8
":%" PRIx8 "],%s",
addr->ether_addr_octet[0], addr->ether_addr_octet[1],
addr->ether_addr_octet[2], addr->ether_addr_octet[3],
addr->ether_addr_octet[4], addr->ether_addr_octet[5],
tablename_val);
nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS | USE_DGRAM,
NULL, NULL);
if (result == NULL)
{
*errnop = ENOMEM;
return NSS_STATUS_TRYAGAIN;
}
if (__glibc_unlikely (niserr2nss (result->status) != NSS_STATUS_SUCCESS))
{
enum nss_status status = niserr2nss (result->status);
nis_freeresult (result);
return status;
}
int parse_res = _nss_nisplus_parse_etherent (result, eth, buffer,
buflen, errnop);
/* We do not need the lookup result anymore. */
nis_freeresult (result);
if (__glibc_unlikely (parse_res < 1))
{
if (parse_res == -1)
return NSS_STATUS_TRYAGAIN;
return NSS_STATUS_NOTFOUND;
}
return NSS_STATUS_SUCCESS;
}
enum nss_status
_nss_nisplus_getspnam_r (const char *name, struct spwd *sp,
char *buffer, size_t buflen, int *errnop)
{
int parse_res;
if (pwd_tablename_val == NULL)
{
enum nss_status status = _nss_pwd_create_tablename (errnop);
if (status != NSS_STATUS_SUCCESS)
return status;
}
if (name == NULL)
{
*errnop = EINVAL;
return NSS_STATUS_NOTFOUND;
}
nis_result *result;
char buf[strlen (name) + 9 + pwd_tablename_len];
int olderr = errno;
snprintf (buf, sizeof (buf), "[name=%s],%s", name, pwd_tablename_val);
result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
if (result == NULL)
{
*errnop = ENOMEM;
return NSS_STATUS_TRYAGAIN;
}
if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0))
{
enum nss_status status = niserr2nss (result->status);
__set_errno (olderr);
nis_freeresult (result);
return status;
}
parse_res = _nss_nisplus_parse_spent (result, sp, buffer, buflen, errnop);
nis_freeresult (result);
if (__builtin_expect (parse_res < 1, 0))
{
if (parse_res == -1)
{
*errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
else
{
__set_errno (olderr);
return NSS_STATUS_NOTFOUND;
}
}
return NSS_STATUS_SUCCESS;
}
enum nss_status
_nss_nisplus_initgroups_dyn (const char *user, gid_t group, long int *start,
long int *size, gid_t **groupsp, long int limit,
int *errnop)
{
if (grp_tablename_val == NULL)
{
enum nss_status status = _nss_grp_create_tablename (errnop);
if (status != NSS_STATUS_SUCCESS)
return status;
}
nis_result *result;
char buf[strlen (user) + 12 + grp_tablename_len];
snprintf (buf, sizeof (buf), "[members=%s],%s", user, grp_tablename_val);
result = nis_list (buf, FOLLOW_LINKS | FOLLOW_PATH | ALL_RESULTS, NULL, NULL);
if (result == NULL)
{
*errnop = ENOMEM;
return NSS_STATUS_TRYAGAIN;
}
if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0))
{
enum nss_status status = niserr2nss (result->status);
nis_freeresult (result);
return status;
}
if (NIS_RES_NUMOBJ (result) == 0)
{
errout:
nis_freeresult (result);
return NSS_STATUS_NOTFOUND;
}
gid_t *groups = *groupsp;
nis_object *obj = NIS_RES_OBJECT (result);
for (unsigned int cnt = 0; cnt < NIS_RES_NUMOBJ (result); ++cnt, ++obj)
{
if (__type_of (obj) != NIS_ENTRY_OBJ
|| strcmp (obj->EN_data.en_type, "group_tbl") != 0
|| obj->EN_data.en_cols.en_cols_len < 4)
continue;
char *numstr = NISOBJVAL (2, obj);
size_t len = NISOBJLEN (2, obj);
if (len == 0 || numstr[0] == '\0')
continue;
gid_t gid;
char *endp;
if (__builtin_expect (numstr[len - 1] != '\0', 0))
{
char numstrbuf[len + 1];
memcpy (numstrbuf, numstr, len);
numstrbuf[len] = '\0';
gid = strtoul (numstrbuf, &endp, 10);
if (*endp)
continue;
}
else
{
gid = strtoul (numstr, &endp, 10);
if (*endp)
continue;
}
if (gid == group)
continue;
/* Insert this group. */
if (*start == *size)
{
/* Need a bigger buffer. */
long int newsize;
if (limit > 0 && *size == limit)
/* We reached the maximum. */
break;
if (limit <= 0)
newsize = 2 * *size;
else
newsize = MIN (limit, 2 * *size);
gid_t *newgroups = realloc (groups, newsize * sizeof (*groups));
if (newgroups == NULL)
goto errout;
*groupsp = groups = newgroups;
*size = newsize;
}
groups[*start] = gid;
*start += 1;
}
nis_freeresult (result);
return NSS_STATUS_SUCCESS;
}