diff options
Diffstat (limited to 'nis/nis_table.c')
| -rw-r--r-- | nis/nis_table.c | 813 |
1 files changed, 0 insertions, 813 deletions
diff --git a/nis/nis_table.c b/nis/nis_table.c deleted file mode 100644 index 88eb6797e6..0000000000 --- a/nis/nis_table.c +++ /dev/null @@ -1,813 +0,0 @@ -/* Copyright (c) 1997-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Thorsten Kukuk <kukuk@suse.de>, 1997. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <assert.h> -#include <string.h> -#include <rpcsvc/nis.h> -#include <libc-diag.h> -#include <shlib-compat.h> - -#include "nis_xdr.h" -#include "nis_intern.h" -#include "libnsl.h" - - -struct ib_request * -__create_ib_request (const_nis_name name, unsigned int flags) -{ - struct ib_request *ibreq = calloc (1, sizeof (struct ib_request)); - nis_attr *search_val = NULL; - size_t search_len = 0; - size_t size = 0; - - if (ibreq == NULL) - return NULL; - - ibreq->ibr_flags = flags; - - char *cptr = strdupa (name); - - /* Not of "[key=value,key=value,...],foo.." format? */ - if (cptr[0] != '[') - { - ibreq->ibr_name = strdup (cptr); - if (ibreq->ibr_name == NULL) - { - free (ibreq); - return NULL; - } - return ibreq; - } - - /* "[key=value,...],foo" format */ - ibreq->ibr_name = strchr (cptr, ']'); - if (ibreq->ibr_name == NULL || ibreq->ibr_name[1] != ',') - { - /* The object has not really been built yet so we use free. */ - free (ibreq); - return NULL; - } - - /* Check if we have an entry of "[key=value,],bar". If, remove the "," */ - if (ibreq->ibr_name[-1] == ',') - ibreq->ibr_name[-1] = '\0'; - else - ibreq->ibr_name[0] = '\0'; - ibreq->ibr_name += 2; - ibreq->ibr_name = strdup (ibreq->ibr_name); - if (ibreq->ibr_name == NULL) - { - free_null: - while (search_len-- > 0) - { - free (search_val[search_len].zattr_ndx); - free (search_val[search_len].zattr_val.zattr_val_val); - } - free (search_val); - nis_free_request (ibreq); - return NULL; - } - - ++cptr; /* Remove "[" */ - - while (cptr != NULL && cptr[0] != '\0') - { - char *key = cptr; - char *val = strchr (cptr, '='); - - cptr = strchr (key, ','); - if (cptr != NULL) - *cptr++ = '\0'; - - if (__glibc_unlikely (val == NULL)) - { - nis_free_request (ibreq); - return NULL; - } - *val++ = '\0'; - if (search_len + 1 >= size) - { - size += 1; - nis_attr *newp = realloc (search_val, size * sizeof (nis_attr)); - if (newp == NULL) - goto free_null; - search_val = newp; - } - search_val[search_len].zattr_ndx = strdup (key); - if (search_val[search_len].zattr_ndx == NULL) - goto free_null; - - search_val[search_len].zattr_val.zattr_val_len = strlen (val) + 1; - search_val[search_len].zattr_val.zattr_val_val = strdup (val); - if (search_val[search_len].zattr_val.zattr_val_val == NULL) - { - free (search_val[search_len].zattr_ndx); - goto free_null; - } - - ++search_len; - } - - ibreq->ibr_srch.ibr_srch_val = search_val; - ibreq->ibr_srch.ibr_srch_len = search_len; - - return ibreq; -} -libnsl_hidden_nolink_def (__create_ib_request, GLIBC_PRIVATE) - -static const struct timeval RPCTIMEOUT = {10, 0}; - -static char * -get_tablepath (char *name, dir_binding *bptr) -{ - enum clnt_stat result; - nis_result res; - struct ns_request req; - - memset (&res, '\0', sizeof (res)); - - req.ns_name = name; - req.ns_object.ns_object_len = 0; - req.ns_object.ns_object_val = NULL; - - result = clnt_call (bptr->clnt, NIS_LOOKUP, (xdrproc_t) _xdr_ns_request, - (caddr_t) &req, (xdrproc_t) _xdr_nis_result, - (caddr_t) &res, RPCTIMEOUT); - - const char *cptr; - if (result == RPC_SUCCESS && NIS_RES_STATUS (&res) == NIS_SUCCESS - && __type_of (NIS_RES_OBJECT (&res)) == NIS_TABLE_OBJ) - cptr = NIS_RES_OBJECT (&res)->TA_data.ta_path; - else - cptr = ""; - - char *str = strdup (cptr); - - if (result == RPC_SUCCESS) - xdr_free ((xdrproc_t) _xdr_nis_result, (char *) &res); - - return str; -} - - -nis_error -__follow_path (char **tablepath, char **tableptr, struct ib_request *ibreq, - dir_binding *bptr) -{ - if (*tablepath == NULL) - { - *tablepath = get_tablepath (ibreq->ibr_name, bptr); - if (*tablepath == NULL) - return NIS_NOMEMORY; - - *tableptr = *tablepath; - } - - /* Since tableptr is only set here, and it's set when tablepath is NULL, - which it is initially defined as, we know it will always be set here. */ - DIAG_PUSH_NEEDS_COMMENT; - DIAG_IGNORE_NEEDS_COMMENT (4.7, "-Wmaybe-uninitialized"); - - if (*tableptr == NULL) - return NIS_NOTFOUND; - - char *newname = strsep (tableptr, ":"); - if (newname[0] == '\0') - return NIS_NOTFOUND; - - DIAG_POP_NEEDS_COMMENT; - - newname = strdup (newname); - if (newname == NULL) - return NIS_NOMEMORY; - - free (ibreq->ibr_name); - ibreq->ibr_name = newname; - - return NIS_SUCCESS; -} -libnsl_hidden_nolink_def (__follow_path, GLIBC_PRIVATE) - - -nis_result * -nis_list (const_nis_name name, unsigned int flags, - int (*callback) (const_nis_name name, - const nis_object *object, - const void *userdata), - const void *userdata) -{ - nis_result *res = malloc (sizeof (nis_result)); - ib_request *ibreq; - int status; - enum clnt_stat clnt_status; - int count_links = 0; /* We will only follow NIS_MAXLINKS links! */ - int done = 0; - nis_name *names; - nis_name namebuf[2] = {NULL, NULL}; - int name_nr = 0; - nis_cb *cb = NULL; - char *tableptr; - char *tablepath = NULL; - int first_try = 0; /* Do we try the old binding at first ? */ - nis_result *allres = NULL; - - if (res == NULL) - return NULL; - - if (name == NULL) - { - status = NIS_BADNAME; - err_out: - nis_freeresult (allres); - memset (res, '\0', sizeof (nis_result)); - NIS_RES_STATUS (res) = status; - return res; - } - - ibreq = __create_ib_request (name, flags); - if (ibreq == NULL) - { - status = NIS_BADNAME; - goto err_out; - } - - if ((flags & EXPAND_NAME) - && ibreq->ibr_name[strlen (ibreq->ibr_name) - 1] != '.') - { - names = nis_getnames (ibreq->ibr_name); - free (ibreq->ibr_name); - ibreq->ibr_name = NULL; - if (names == NULL) - { - nis_free_request (ibreq); - status = NIS_BADNAME; - goto err_out; - } - ibreq->ibr_name = strdup (names[name_nr]); - if (ibreq->ibr_name == NULL) - { - nis_freenames (names); - nis_free_request (ibreq); - status = NIS_NOMEMORY; - goto err_out; - } - } - else - { - names = namebuf; - names[name_nr] = ibreq->ibr_name; - } - - cb = NULL; - - while (!done) - { - dir_binding bptr; - directory_obj *dir = NULL; - - memset (res, '\0', sizeof (nis_result)); - - status = __nisfind_server (ibreq->ibr_name, - ibreq->ibr_srch.ibr_srch_val != NULL, - &dir, &bptr, flags & ~MASTER_ONLY); - if (status != NIS_SUCCESS) - { - NIS_RES_STATUS (res) = status; - goto fail3; - } - - while (__nisbind_connect (&bptr) != NIS_SUCCESS) - if (__glibc_unlikely (__nisbind_next (&bptr) != NIS_SUCCESS)) - { - NIS_RES_STATUS (res) = NIS_NAMEUNREACHABLE; - goto fail; - } - - if (callback != NULL) - { - assert (cb == NULL); - cb = __nis_create_callback (callback, userdata, flags); - ibreq->ibr_cbhost.ibr_cbhost_len = 1; - ibreq->ibr_cbhost.ibr_cbhost_val = cb->serv; - } - - again: - clnt_status = clnt_call (bptr.clnt, NIS_IBLIST, - (xdrproc_t) _xdr_ib_request, (caddr_t) ibreq, - (xdrproc_t) _xdr_nis_result, - (caddr_t) res, RPCTIMEOUT); - - if (__glibc_unlikely (clnt_status != RPC_SUCCESS)) - NIS_RES_STATUS (res) = NIS_RPCERROR; - else - switch (NIS_RES_STATUS (res)) - { /* start switch */ - case NIS_PARTIAL: - case NIS_SUCCESS: - case NIS_S_SUCCESS: - if (__type_of (NIS_RES_OBJECT (res)) == NIS_LINK_OBJ - && (flags & FOLLOW_LINKS)) /* We are following links. */ - { - free (ibreq->ibr_name); - ibreq->ibr_name = NULL; - /* If we hit the link limit, bail. */ - if (__glibc_unlikely (count_links > NIS_MAXLINKS)) - { - NIS_RES_STATUS (res) = NIS_LINKNAMEERROR; - ++done; - break; - } - ++count_links; - ibreq->ibr_name = - strdup (NIS_RES_OBJECT (res)->LI_data.li_name); - if (ibreq->ibr_name == NULL) - { - NIS_RES_STATUS (res) = NIS_NOMEMORY; - fail: - __nisbind_destroy (&bptr); - nis_free_directory (dir); - fail3: - free (tablepath); - if (cb) - { - __nis_destroy_callback (cb); - ibreq->ibr_cbhost.ibr_cbhost_len = 0; - ibreq->ibr_cbhost.ibr_cbhost_val = NULL; - } - if (names != namebuf) - nis_freenames (names); - nis_free_request (ibreq); - nis_freeresult (allres); - return res; - } - if (NIS_RES_OBJECT (res)->LI_data.li_attrs.li_attrs_len) - if (ibreq->ibr_srch.ibr_srch_len == 0) - { - ibreq->ibr_srch.ibr_srch_len = - NIS_RES_OBJECT (res)->LI_data.li_attrs.li_attrs_len; - ibreq->ibr_srch.ibr_srch_val = - NIS_RES_OBJECT (res)->LI_data.li_attrs.li_attrs_val; - } - /* The following is a non-obvious optimization. A - nis_freeresult call would call xdr_free as the - following code. But it also would unnecessarily - free the result structure. We avoid this here - along with the necessary tests. */ - xdr_free ((xdrproc_t) _xdr_nis_result, (char *)res); - memset (res, '\0', sizeof (*res)); - first_try = 1; /* Try at first the old binding */ - goto again; - } - else if ((flags & FOLLOW_PATH) - && NIS_RES_STATUS (res) == NIS_PARTIAL) - { - enum nis_error err = __follow_path (&tablepath, &tableptr, - ibreq, &bptr); - if (err != NIS_SUCCESS) - { - if (err == NIS_NOMEMORY) - NIS_RES_STATUS (res) = err; - ++done; - } - else - { - /* The following is a non-obvious optimization. A - nis_freeresult call would call xdr_free as the - following code. But it also would unnecessarily - free the result structure. We avoid this here - along with the necessary tests. */ - xdr_free ((xdrproc_t) _xdr_nis_result, (char *) res); - memset (res, '\0', sizeof (*res)); - first_try = 1; - goto again; - } - } - else if ((flags & (FOLLOW_PATH | ALL_RESULTS)) - == (FOLLOW_PATH | ALL_RESULTS)) - { - if (allres == NULL) - { - allres = res; - res = malloc (sizeof (nis_result)); - if (res == NULL) - { - res = allres; - allres = NULL; - NIS_RES_STATUS (res) = NIS_NOMEMORY; - goto fail; - } - NIS_RES_STATUS (res) = NIS_RES_STATUS (allres); - } - else - { - nis_object *objects_val - = realloc (NIS_RES_OBJECT (allres), - (NIS_RES_NUMOBJ (allres) - + NIS_RES_NUMOBJ (res)) - * sizeof (nis_object)); - if (objects_val == NULL) - { - NIS_RES_STATUS (res) = NIS_NOMEMORY; - goto fail; - } - NIS_RES_OBJECT (allres) = objects_val; - memcpy (NIS_RES_OBJECT (allres) + NIS_RES_NUMOBJ (allres), - NIS_RES_OBJECT (res), - NIS_RES_NUMOBJ (res) * sizeof (nis_object)); - NIS_RES_NUMOBJ (allres) += NIS_RES_NUMOBJ (res); - NIS_RES_NUMOBJ (res) = 0; - free (NIS_RES_OBJECT (res)); - NIS_RES_OBJECT (res) = NULL; - NIS_RES_STATUS (allres) = NIS_RES_STATUS (res); - xdr_free ((xdrproc_t) _xdr_nis_result, (char *) res); - } - enum nis_error err = __follow_path (&tablepath, &tableptr, - ibreq, &bptr); - if (err != NIS_SUCCESS) - { - /* Prepare for the nis_freeresult call. */ - memset (res, '\0', sizeof (*res)); - - if (err == NIS_NOMEMORY) - NIS_RES_STATUS (allres) = err; - ++done; - } - } - else - ++done; - break; - case NIS_CBRESULTS: - if (cb != NULL) - { - __nis_do_callback (&bptr, &res->cookie, cb); - NIS_RES_STATUS (res) = cb->result; - - if (!(flags & ALL_RESULTS)) - ++done; - else - { - enum nis_error err - = __follow_path (&tablepath, &tableptr, ibreq, &bptr); - if (err != NIS_SUCCESS) - { - if (err == NIS_NOMEMORY) - NIS_RES_STATUS (res) = err; - ++done; - } - } - } - break; - case NIS_SYSTEMERROR: - case NIS_NOSUCHNAME: - case NIS_NOT_ME: - /* If we had first tried the old binding, do nothing, but - get a new binding */ - if (!first_try) - { - if (__nisbind_next (&bptr) != NIS_SUCCESS) - { - ++done; - break; /* No more servers to search */ - } - while (__nisbind_connect (&bptr) != NIS_SUCCESS) - { - if (__nisbind_next (&bptr) != NIS_SUCCESS) - { - ++done; - break; /* No more servers to search */ - } - } - goto again; - } - break; - default: - if (!first_try) - { - /* Try the next domainname if we don't follow a link. */ - free (ibreq->ibr_name); - ibreq->ibr_name = NULL; - if (__glibc_unlikely (count_links)) - { - NIS_RES_STATUS (res) = NIS_LINKNAMEERROR; - ++done; - break; - } - ++name_nr; - if (names[name_nr] == NULL) - { - ++done; - break; - } - ibreq->ibr_name = strdup (names[name_nr]); - if (ibreq->ibr_name == NULL) - { - NIS_RES_STATUS (res) = NIS_NOMEMORY; - goto fail; - } - first_try = 1; /* Try old binding at first */ - goto again; - } - break; - } - first_try = 0; - - if (cb) - { - __nis_destroy_callback (cb); - ibreq->ibr_cbhost.ibr_cbhost_len = 0; - ibreq->ibr_cbhost.ibr_cbhost_val = NULL; - cb = NULL; - } - - __nisbind_destroy (&bptr); - nis_free_directory (dir); - } - - free (tablepath); - - if (names != namebuf) - nis_freenames (names); - - nis_free_request (ibreq); - - if (allres) - { - nis_freeresult (res); - return allres; - } - - return res; -} -libnsl_hidden_nolink_def (nis_list, GLIBC_2_1) - -nis_result * -nis_add_entry (const_nis_name name, const nis_object *obj2, unsigned int flags) -{ - nis_result *res = calloc (1, sizeof (nis_result)); - if (res == NULL) - return NULL; - - if (name == NULL) - { - NIS_RES_STATUS (res) = NIS_BADNAME; - return res; - } - - ib_request *ibreq = __create_ib_request (name, flags); - if (ibreq == NULL) - { - NIS_RES_STATUS (res) = NIS_BADNAME; - return res; - } - - nis_object obj; - memcpy (&obj, obj2, sizeof (nis_object)); - - size_t namelen = strlen (name); - char buf1[namelen + 20]; - char buf4[namelen + 20]; - - if (obj.zo_name == NULL || strlen (obj.zo_name) == 0) - obj.zo_name = nis_leaf_of_r (name, buf1, sizeof (buf1)); - - if (obj.zo_owner == NULL || strlen (obj.zo_owner) == 0) - obj.zo_owner = nis_local_principal (); - - if (obj.zo_group == NULL || strlen (obj.zo_group) == 0) - obj.zo_group = nis_local_group (); - - obj.zo_domain = nis_domain_of_r (name, buf4, sizeof (buf4)); - - ibreq->ibr_obj.ibr_obj_val = nis_clone_object (&obj, NULL); - if (ibreq->ibr_obj.ibr_obj_val == NULL) - { - nis_free_request (ibreq); - NIS_RES_STATUS (res) = NIS_NOMEMORY; - return res; - } - ibreq->ibr_obj.ibr_obj_len = 1; - - nis_error status = __do_niscall (ibreq->ibr_name, NIS_IBADD, - (xdrproc_t) _xdr_ib_request, - (caddr_t) ibreq, - (xdrproc_t) _xdr_nis_result, - (caddr_t) res, 0, NULL); - if (__glibc_unlikely (status != NIS_SUCCESS)) - NIS_RES_STATUS (res) = status; - - nis_free_request (ibreq); - - return res; -} -libnsl_hidden_nolink_def (nis_add_entry, GLIBC_2_1) - -nis_result * -nis_modify_entry (const_nis_name name, const nis_object *obj2, - unsigned int flags) -{ - nis_object obj; - nis_result *res; - nis_error status; - ib_request *ibreq; - size_t namelen = strlen (name); - char buf1[namelen + 20]; - char buf4[namelen + 20]; - - res = calloc (1, sizeof (nis_result)); - if (res == NULL) - return NULL; - - ibreq = __create_ib_request (name, flags); - if (ibreq == NULL) - { - NIS_RES_STATUS (res) = NIS_BADNAME; - return res; - } - - memcpy (&obj, obj2, sizeof (nis_object)); - - if (obj.zo_name == NULL || strlen (obj.zo_name) == 0) - obj.zo_name = nis_leaf_of_r (name, buf1, sizeof (buf1)); - - if (obj.zo_owner == NULL || strlen (obj.zo_owner) == 0) - obj.zo_owner = nis_local_principal (); - - if (obj.zo_group == NULL || strlen (obj.zo_group) == 0) - obj.zo_group = nis_local_group (); - - obj.zo_domain = nis_domain_of_r (name, buf4, sizeof (buf4)); - - ibreq->ibr_obj.ibr_obj_val = nis_clone_object (&obj, NULL); - if (ibreq->ibr_obj.ibr_obj_val == NULL) - { - nis_free_request (ibreq); - NIS_RES_STATUS (res) = NIS_NOMEMORY; - return res; - } - ibreq->ibr_obj.ibr_obj_len = 1; - - status = __do_niscall (ibreq->ibr_name, NIS_IBMODIFY, - (xdrproc_t) _xdr_ib_request, - (caddr_t) ibreq, (xdrproc_t) _xdr_nis_result, - (caddr_t) res, 0, NULL); - if (__glibc_unlikely (status != NIS_SUCCESS)) - NIS_RES_STATUS (res) = status; - - nis_free_request (ibreq); - - return res; -} -libnsl_hidden_nolink_def (nis_modify_entry, GLIBC_2_1) - -nis_result * -nis_remove_entry (const_nis_name name, const nis_object *obj, - unsigned int flags) -{ - nis_result *res; - ib_request *ibreq; - nis_error status; - - res = calloc (1, sizeof (nis_result)); - if (res == NULL) - return NULL; - - if (name == NULL) - { - NIS_RES_STATUS (res) = NIS_BADNAME; - return res; - } - - ibreq = __create_ib_request (name, flags); - if (ibreq == NULL) - { - NIS_RES_STATUS (res) = NIS_BADNAME; - return res; - } - - if (obj != NULL) - { - ibreq->ibr_obj.ibr_obj_val = nis_clone_object (obj, NULL); - if (ibreq->ibr_obj.ibr_obj_val == NULL) - { - nis_free_request (ibreq); - NIS_RES_STATUS (res) = NIS_NOMEMORY; - return res; - } - ibreq->ibr_obj.ibr_obj_len = 1; - } - - if ((status = __do_niscall (ibreq->ibr_name, NIS_IBREMOVE, - (xdrproc_t) _xdr_ib_request, - (caddr_t) ibreq, (xdrproc_t) _xdr_nis_result, - (caddr_t) res, 0, NULL)) != NIS_SUCCESS) - NIS_RES_STATUS (res) = status; - - nis_free_request (ibreq); - - return res; -} -libnsl_hidden_nolink_def (nis_remove_entry, GLIBC_2_1) - -nis_result * -nis_first_entry (const_nis_name name) -{ - nis_result *res; - ib_request *ibreq; - nis_error status; - - res = calloc (1, sizeof (nis_result)); - if (res == NULL) - return NULL; - - if (name == NULL) - { - NIS_RES_STATUS (res) = NIS_BADNAME; - return res; - } - - ibreq = __create_ib_request (name, 0); - if (ibreq == NULL) - { - NIS_RES_STATUS (res) = NIS_BADNAME; - return res; - } - - status = __do_niscall (ibreq->ibr_name, NIS_IBFIRST, - (xdrproc_t) _xdr_ib_request, - (caddr_t) ibreq, (xdrproc_t) _xdr_nis_result, - (caddr_t) res, 0, NULL); - - if (__glibc_unlikely (status != NIS_SUCCESS)) - NIS_RES_STATUS (res) = status; - - nis_free_request (ibreq); - - return res; -} -libnsl_hidden_nolink_def (nis_first_entry, GLIBC_2_1) - -nis_result * -nis_next_entry (const_nis_name name, const netobj *cookie) -{ - nis_result *res; - ib_request *ibreq; - nis_error status; - - res = calloc (1, sizeof (nis_result)); - if (res == NULL) - return NULL; - - if (name == NULL) - { - NIS_RES_STATUS (res) = NIS_BADNAME; - return res; - } - - ibreq = __create_ib_request (name, 0); - if (ibreq == NULL) - { - NIS_RES_STATUS (res) = NIS_BADNAME; - return res; - } - - if (cookie != NULL) - { - ibreq->ibr_cookie.n_bytes = cookie->n_bytes; - ibreq->ibr_cookie.n_len = cookie->n_len; - } - - status = __do_niscall (ibreq->ibr_name, NIS_IBNEXT, - (xdrproc_t) _xdr_ib_request, - (caddr_t) ibreq, (xdrproc_t) _xdr_nis_result, - (caddr_t) res, 0, NULL); - - if (__glibc_unlikely (status != NIS_SUCCESS)) - NIS_RES_STATUS (res) = status; - - if (cookie != NULL) - { - /* Don't give cookie free, it is not from us */ - ibreq->ibr_cookie.n_bytes = NULL; - ibreq->ibr_cookie.n_len = 0; - } - - nis_free_request (ibreq); - - return res; -} -libnsl_hidden_nolink_def (nis_next_entry, GLIBC_2_1) |