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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /nis/nis_table.c
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
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(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'nis/nis_table.c')
-rw-r--r--nis/nis_table.c380
1 files changed, 157 insertions, 223 deletions
diff --git a/nis/nis_table.c b/nis/nis_table.c
index 70b4701419..13acdfdf50 100644
--- a/nis/nis_table.c
+++ b/nis/nis_table.c
@@ -1,5 +1,4 @@
-/* Copyright (c) 1997-1999, 2003, 2004, 2005, 2006, 2007
- Free Software Foundation, Inc.
+/* Copyright (c) 1997, 1998, 1999, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@suse.de>, 1997.
@@ -18,21 +17,21 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
-#include <assert.h>
#include <string.h>
#include <rpcsvc/nis.h>
#include "nis_xdr.h"
#include "nis_intern.h"
-#include "libnsl.h"
-struct ib_request *
+static struct ib_request *
__create_ib_request (const_nis_name name, unsigned int flags)
{
- struct ib_request *ibreq = calloc (1, sizeof (struct ib_request));
+ struct ib_request *ibreq = calloc (1, sizeof (ib_request));
+ char buf[strlen (name) + 1];
nis_attr *search_val = NULL;
size_t search_len = 0;
+ char *cptr;
size_t size = 0;
if (ibreq == NULL)
@@ -40,26 +39,18 @@ __create_ib_request (const_nis_name name, unsigned int flags)
ibreq->ibr_flags = flags;
- char *cptr = strdupa (name);
+ cptr = strcpy (buf, 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;
- }
+ return (ibreq->ibr_name = strdup (cptr)) == NULL ? NULL : 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);
+ ibreq->ibr_name = NULL; /* Or the xdr_* functions will dump */
+ nis_free_request (ibreq);
return NULL;
}
@@ -94,22 +85,21 @@ __create_ib_request (const_nis_name name, unsigned int flags)
if (cptr != NULL)
*cptr++ = '\0';
- if (__builtin_expect (val == NULL, 0))
+ if (!val)
{
nis_free_request (ibreq);
return NULL;
}
*val++ = '\0';
- if (search_len + 1 >= size)
+ if ((search_len + 1) >= size)
{
size += 1;
- nis_attr *newp = realloc (search_val, size * sizeof (nis_attr));
- if (newp == NULL)
+ search_val = realloc (search_val, size * sizeof (nis_attr));
+ if (search_val == NULL)
goto free_null;
- search_val = newp;
}
search_val[search_len].zattr_ndx = strdup (key);
- if (search_val[search_len].zattr_ndx == NULL)
+ if ((search_val[search_len].zattr_ndx) == NULL)
goto free_null;
search_val[search_len].zattr_val.zattr_val_len = strlen (val) + 1;
@@ -128,18 +118,18 @@ __create_ib_request (const_nis_name name, unsigned int flags)
return ibreq;
}
-libnsl_hidden_def (__create_ib_request)
-static const struct timeval RPCTIMEOUT = {10, 0};
+static struct timeval RPCTIMEOUT = {10, 0};
static char *
-get_tablepath (char *name, dir_binding *bptr)
+__get_tablepath (char *name, dir_binding *bptr)
{
enum clnt_stat result;
- nis_result res;
+ nis_result *res = calloc (1, sizeof (nis_result));
struct ns_request req;
- memset (&res, '\0', sizeof (res));
+ if (res == NULL)
+ return NULL;
req.ns_name = name;
req.ns_object.ns_object_len = 0;
@@ -147,54 +137,21 @@ get_tablepath (char *name, dir_binding *bptr)
result = clnt_call (bptr->clnt, NIS_LOOKUP, (xdrproc_t) _xdr_ns_request,
(caddr_t) &req, (xdrproc_t) _xdr_nis_result,
- (caddr_t) &res, RPCTIMEOUT);
+ (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;
+ if (result == RPC_SUCCESS && NIS_RES_STATUS (res) == NIS_SUCCESS &&
+ __type_of (NIS_RES_OBJECT (res)) == NIS_TABLE_OBJ)
+ {
+ char *cptr = strdup (NIS_RES_OBJECT (res)->TA_data.ta_path);
+ nis_freeresult (res);
+ return cptr;
+ }
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;
+ nis_freeresult (res);
+ return strdup ("");
}
- if (*tableptr == NULL)
- return NIS_NOTFOUND;
-
- char *newname = strsep (tableptr, ":");
- if (newname[0] == '\0')
- return NIS_NOTFOUND;
-
- newname = strdup (newname);
- if (newname == NULL)
- return NIS_NOMEMORY;
-
- free (ibreq->ibr_name);
- ibreq->ibr_name = newname;
-
- return NIS_SUCCESS;
}
-libnsl_hidden_def (__follow_path)
-
nis_result *
nis_list (const_nis_name name, unsigned int flags,
@@ -203,7 +160,7 @@ nis_list (const_nis_name name, unsigned int flags,
const void *userdata),
const void *userdata)
{
- nis_result *res = malloc (sizeof (nis_result));
+ nis_result *res = calloc (1, sizeof (nis_result));
ib_request *ibreq;
int status;
enum clnt_stat clnt_status;
@@ -213,29 +170,23 @@ nis_list (const_nis_name name, unsigned int flags,
nis_name namebuf[2] = {NULL, NULL};
int name_nr = 0;
nis_cb *cb = NULL;
- char *tableptr;
- char *tablepath = NULL;
+ char *tableptr, *tablepath = NULL;
+ int have_tablepath = 0;
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;
+ NIS_RES_STATUS (res) = NIS_BADNAME;
return res;
}
- ibreq = __create_ib_request (name, flags);
- if (ibreq == NULL)
+ if ((ibreq = __create_ib_request (name, flags)) == NULL)
{
- status = NIS_BADNAME;
- goto err_out;
+ NIS_RES_STATUS (res) = NIS_BADNAME;
+ return res;
}
if ((flags & EXPAND_NAME)
@@ -247,16 +198,15 @@ nis_list (const_nis_name name, unsigned int flags,
if (names == NULL)
{
nis_free_request (ibreq);
- status = NIS_BADNAME;
- goto err_out;
+ NIS_RES_STATUS (res) = NIS_BADNAME;
+ return res;
}
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;
+ NIS_RES_STATUS (res) = NIS_NOMEMORY;
+ return res;
}
}
else
@@ -274,25 +224,36 @@ nis_list (const_nis_name name, unsigned int flags,
memset (res, '\0', sizeof (nis_result));
- status = __nisfind_server (ibreq->ibr_name,
- ibreq->ibr_srch.ibr_srch_val != NULL,
- &dir, &bptr, flags & ~MASTER_ONLY);
+ status = __nisfind_server (ibreq->ibr_name, &dir);
if (status != NIS_SUCCESS)
- {
+ {
+ nis_free_request (ibreq);
NIS_RES_STATUS (res) = status;
- goto fail3;
- }
+ return res;
+ }
+
+ status = __nisbind_create (&bptr, dir->do_servers.do_servers_val,
+ dir->do_servers.do_servers_len, flags);
+ if (status != NIS_SUCCESS)
+ {
+ nis_free_request (ibreq);
+ NIS_RES_STATUS (res) = status;
+ nis_free_directory (dir);
+ return res;
+ }
while (__nisbind_connect (&bptr) != NIS_SUCCESS)
- if (__builtin_expect (__nisbind_next (&bptr) != NIS_SUCCESS, 0))
+ if (__nisbind_next (&bptr) != NIS_SUCCESS)
{
+ __nisbind_destroy (&bptr);
+ nis_free_directory (dir);
+ nis_free_request (ibreq);
NIS_RES_STATUS (res) = NIS_NAMEUNREACHABLE;
- goto fail;
+ return res;
}
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;
@@ -304,7 +265,7 @@ nis_list (const_nis_name name, unsigned int flags,
(xdrproc_t) _xdr_nis_result,
(caddr_t) res, RPCTIMEOUT);
- if (__builtin_expect (clnt_status != RPC_SUCCESS, 0))
+ if (clnt_status != RPC_SUCCESS)
NIS_RES_STATUS (res) = NIS_RPCERROR;
else
switch (NIS_RES_STATUS (res))
@@ -312,13 +273,13 @@ nis_list (const_nis_name name, unsigned int flags,
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. */
+ 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 (__builtin_expect (count_links > NIS_MAXLINKS, 0))
+ if (count_links > NIS_MAXLINKS)
{
NIS_RES_STATUS (res) = NIS_LINKNAMEERROR;
++done;
@@ -329,22 +290,8 @@ nis_list (const_nis_name name, unsigned int flags,
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);
+ NIS_RES_STATUS (res) = NIS_NOMEMORY;
return res;
}
if (NIS_RES_OBJECT (res)->LI_data.li_attrs.li_attrs_len)
@@ -355,88 +302,63 @@ nis_list (const_nis_name name, unsigned int flags,
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));
+ nis_freeresult (res);
+ res = calloc (1, sizeof (nis_result));
+ if (res == NULL)
+ {
+ if (have_tablepath)
+ free (tablepath);
+ __nisbind_destroy (&bptr);
+ nis_free_directory (dir);
+ return NULL;
+ }
first_try = 1; /* Try at first the old binding */
goto again;
}
- else if ((flags & FOLLOW_PATH)
- && NIS_RES_STATUS (res) == NIS_PARTIAL)
+ else if ((flags & FOLLOW_PATH) &&
+ NIS_RES_STATUS (res) == NIS_PARTIAL)
{
- clnt_status = __follow_path (&tablepath, &tableptr, ibreq,
- &bptr);
- if (clnt_status != NIS_SUCCESS)
+ if (!have_tablepath)
{
- NIS_RES_STATUS (res) = clnt_status;
- ++done;
+ tablepath = __get_tablepath (ibreq->ibr_name, &bptr);
+ tableptr = tablepath;
+ have_tablepath = 1;
}
- else
+ if (tableptr == NULL)
{
- /* 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;
+ ++done;
+ break;
}
- }
- else if ((flags & (FOLLOW_PATH | ALL_RESULTS))
- == (FOLLOW_PATH | ALL_RESULTS))
- {
- if (allres == NULL)
+ free (ibreq->ibr_name);
+ ibreq->ibr_name = strsep (&tableptr, ":");
+ if (ibreq->ibr_name == NULL || ibreq->ibr_name[0] == '\0')
{
- allres = res;
- res = malloc (sizeof (nis_result));
- if (res == NULL)
+ ibreq->ibr_name = strdup ("");
+ if (ibreq->ibr_name == NULL)
{
- res = allres;
- allres = NULL;
+ nis_free_request (ibreq);
NIS_RES_STATUS (res) = NIS_NOMEMORY;
- goto fail;
+ return res;
}
- NIS_RES_STATUS (res) = NIS_RES_STATUS (allres);
+ ++done;
}
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)
+ ibreq->ibr_name = strdup (ibreq->ibr_name);
+ nis_freeresult (res);
+ res = calloc (1, sizeof (nis_result));
+ if (res == NULL || ibreq->ibr_name == NULL)
{
- NIS_RES_STATUS (res) = NIS_NOMEMORY;
- goto fail;
+ free (res);
+ nis_free_request (ibreq);
+ if (have_tablepath)
+ free (tablepath);
+ __nisbind_destroy (&bptr);
+ nis_free_directory (dir);
+ return NULL;
}
- 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);
- }
- clnt_status = __follow_path (&tablepath, &tableptr, ibreq,
- &bptr);
- if (clnt_status != NIS_SUCCESS)
- {
- /* Prepare for the nis_freeresult call. */
- memset (res, '\0', sizeof (*res));
-
- if (clnt_status == NIS_NOMEMORY)
- NIS_RES_STATUS (allres) = clnt_status;
- ++done;
+ first_try = 1;
+ goto again;
}
}
else
@@ -452,10 +374,32 @@ nis_list (const_nis_name name, unsigned int flags,
++done;
else
{
- NIS_RES_STATUS (res)
- = __follow_path (&tablepath, &tableptr, ibreq, &bptr);
- if (NIS_RES_STATUS (res) != NIS_SUCCESS)
- ++done;
+ if (!have_tablepath)
+ {
+ tablepath = __get_tablepath (ibreq->ibr_name, &bptr);
+ tableptr = tablepath;
+ have_tablepath = 1;
+ }
+ if (tableptr == NULL)
+ {
+ ++done;
+ break;
+ }
+ free (ibreq->ibr_name);
+ ibreq->ibr_name = strsep (&tableptr, ":");
+ if (ibreq->ibr_name == NULL || ibreq->ibr_name[0] == '\0')
+ {
+ ibreq->ibr_name = strdup ("");
+ ++done;
+ }
+ else
+ ibreq->ibr_name = strdup (ibreq->ibr_name);
+ if (ibreq->ibr_name == NULL)
+ {
+ nis_free_request (ibreq);
+ NIS_RES_STATUS (res) = NIS_NOMEMORY;
+ return res;
+ }
}
}
break;
@@ -488,7 +432,7 @@ nis_list (const_nis_name name, unsigned int flags,
/* Try the next domainname if we don't follow a link. */
free (ibreq->ibr_name);
ibreq->ibr_name = NULL;
- if (__builtin_expect (count_links, 0))
+ if (count_links)
{
NIS_RES_STATUS (res) = NIS_LINKNAMEERROR;
++done;
@@ -503,8 +447,9 @@ nis_list (const_nis_name name, unsigned int flags,
ibreq->ibr_name = strdup (names[name_nr]);
if (ibreq->ibr_name == NULL)
{
+ nis_free_request (ibreq);
NIS_RES_STATUS (res) = NIS_NOMEMORY;
- goto fail;
+ return res;
}
first_try = 1; /* Try old binding at first */
goto again;
@@ -518,26 +463,17 @@ nis_list (const_nis_name name, unsigned int flags,
__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_def (nis_list)
@@ -545,7 +481,15 @@ libnsl_hidden_def (nis_list)
nis_result *
nis_add_entry (const_nis_name name, const nis_object *obj2, unsigned int flags)
{
- nis_result *res = calloc (1, sizeof (nis_result));
+ 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;
@@ -555,20 +499,14 @@ nis_add_entry (const_nis_name name, const nis_object *obj2, unsigned int flags)
return res;
}
- ib_request *ibreq = __create_ib_request (name, flags);
- if (ibreq == NULL)
+ if ((ibreq = __create_ib_request (name, flags)) == 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));
@@ -589,12 +527,11 @@ nis_add_entry (const_nis_name name, const nis_object *obj2, unsigned int flags)
}
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 (__builtin_expect (status != NIS_SUCCESS, 0))
+ if ((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)) != NIS_SUCCESS)
NIS_RES_STATUS (res) = status;
nis_free_request (ibreq);
@@ -618,8 +555,7 @@ nis_modify_entry (const_nis_name name, const nis_object *obj2,
if (res == NULL)
return NULL;
- ibreq = __create_ib_request (name, flags);
- if (ibreq == NULL)
+ if (( ibreq =__create_ib_request (name, flags)) == NULL)
{
NIS_RES_STATUS (res) = NIS_BADNAME;
return res;
@@ -647,11 +583,10 @@ nis_modify_entry (const_nis_name name, const nis_object *obj2,
}
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 (__builtin_expect (status != NIS_SUCCESS, 0))
+ if ((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)) != NIS_SUCCESS)
NIS_RES_STATUS (res) = status;
nis_free_request (ibreq);
@@ -677,8 +612,7 @@ nis_remove_entry (const_nis_name name, const nis_object *obj,
return res;
}
- ibreq = __create_ib_request (name, flags);
- if (ibreq == NULL)
+ if ((ibreq =__create_ib_request (name, flags)) == NULL)
{
NIS_RES_STATUS (res) = NIS_BADNAME;
return res;
@@ -736,7 +670,7 @@ nis_first_entry (const_nis_name name)
(caddr_t) ibreq, (xdrproc_t) _xdr_nis_result,
(caddr_t) res, 0, NULL);
- if (__builtin_expect (status != NIS_SUCCESS, 0))
+ if (status != NIS_SUCCESS)
NIS_RES_STATUS (res) = status;
nis_free_request (ibreq);
@@ -779,7 +713,7 @@ nis_next_entry (const_nis_name name, const netobj *cookie)
(caddr_t) ibreq, (xdrproc_t) _xdr_nis_result,
(caddr_t) res, 0, NULL);
- if (__builtin_expect (status != NIS_SUCCESS, 0))
+ if (status != NIS_SUCCESS)
NIS_RES_STATUS (res) = status;
if (cookie != NULL)