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Diffstat (limited to 'nis/nss_nisplus/nisplus-service.c')
-rw-r--r--nis/nss_nisplus/nisplus-service.c253
1 files changed, 153 insertions, 100 deletions
diff --git a/nis/nss_nisplus/nisplus-service.c b/nis/nss_nisplus/nisplus-service.c
index 6cad42d4f6..50bc7e24c1 100644
--- a/nis/nss_nisplus/nisplus-service.c
+++ b/nis/nss_nisplus/nisplus-service.c
@@ -31,107 +31,154 @@
__libc_lock_define_initialized (static, lock);
static nis_result *result = NULL;
-static nis_name *names = NULL;
-
-#define ENTNAME servent
-#define DATABASE "services"
-#define TRAILING_LIST_MEMBER s_aliases
-#define TRAILING_LIST_SEPARATOR_P isspace
-#include "../../nss/nss_files/files-parse.c"
-#define ISSLASH(c) ((c) == '/')
-LINE_PARSER
-("#",
- STRING_FIELD (result->s_name, isspace, 1);
- INT_FIELD (result->s_port, ISSLASH, 10, 0, htons);
- STRING_FIELD (result->s_proto, isspace, 1);
- )
-
+static nis_name tablename_val = NULL;
+static u_long tablename_len = 0;
#define NISENTRYVAL(idx,col,res) \
- ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val)
+ ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val)
#define NISENTRYLEN(idx,col,res) \
- ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len)
+ ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len)
static int
_nss_nisplus_parse_servent (nis_result *result, struct servent *serv,
char *buffer, size_t buflen)
{
- char *p = buffer;
+ char *first_unused = buffer;
size_t room_left = buflen;
unsigned int i;
- struct parser_data *data = (void *) buffer;
+ char *p, *line;
if (result == NULL)
return 0;
if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) ||
- result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ ||
- strcmp (result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type,
- "services_tbl") != 0 ||
- result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 4)
+ __type_of (result->objects.objects_val) != ENTRY_OBJ ||
+ strcmp (result->objects.objects_val->EN_data.en_type,
+ "services_tbl") != 0 ||
+ result->objects.objects_val->EN_data.en_cols.en_cols_len < 4)
return 0;
- memset (p, '\0', room_left);
-
- /* Generate the services entry format and use the normal parser */
- if (NISENTRYLEN (0, 0, result) + 1 > room_left)
+ if (NISENTRYLEN (0, 0, result) >= room_left)
{
+ no_more_room:
__set_errno (ERANGE);
return 0;
}
- strncpy (p, NISENTRYVAL (0, 0, result), NISENTRYLEN (0, 0, result));
- room_left -= (NISENTRYLEN (0, 0, result) + 1);
-
- if (NISENTRYLEN (0, 3, result) + 1 > room_left)
+ strncpy (first_unused, NISENTRYVAL (0, 0, result),
+ NISENTRYLEN (0, 0, result));
+ first_unused[NISENTRYLEN (0, 0, result)] = '\0';
+ serv->s_name = first_unused;
+ room_left -= (strlen (first_unused) +1);
+ first_unused += strlen (first_unused) +1;
+
+ if (NISENTRYLEN (0, 2, result) >= room_left)
+ goto no_more_room;
+ strncpy (first_unused, NISENTRYVAL (0, 2, result),
+ NISENTRYLEN (0, 2, result));
+ first_unused[NISENTRYLEN (0, 2, result)] = '\0';
+ serv->s_proto = first_unused;
+ room_left -= (strlen (first_unused) +1);
+ first_unused += strlen (first_unused) +1;
+
+ serv->s_port = atoi (NISENTRYVAL (0, 3, result));
+ p = first_unused;
+
+ line = p;
+ for (i = 0; i < result->objects.objects_len; i++)
{
- __set_errno (ERANGE);
- return 0;
+ if (strcmp (NISENTRYVAL (i, 1, result), serv->s_name) != 0)
+ {
+ if (NISENTRYLEN (i, 1, result) + 2 > room_left)
+ goto no_more_room;
+ p = stpcpy(p, " ");
+ p = stpncpy (p, NISENTRYVAL (i, 1, result),
+ NISENTRYLEN (i, 1, result));
+ *p = '\0';
+ room_left -= (NISENTRYLEN (i, 1, result) + 1);
+ }
}
- strcat (p, "\t");
- strncat (p, NISENTRYVAL (0, 3, result), NISENTRYLEN (0, 3, result));
- room_left -= (NISENTRYLEN (0, 3, result) + 1);
- if (NISENTRYLEN (0, 2, result) + 1 > room_left)
+ ++p;
+ first_unused = p;
+
+ /* Adjust the pointer so it is aligned for
+ storing pointers. */
+ first_unused += __alignof__ (char *) - 1;
+ first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *));
+ serv->s_aliases = (char **) first_unused;
+ if (room_left < sizeof (char *))
+ goto no_more_room;
+ room_left -= (sizeof (char *));
+ serv->s_aliases[0] = NULL;
+
+ i = 0;
+ while (*line != '\0')
{
- __set_errno (ERANGE);
- return 0;
- }
- strcat (p, "/");
- strncat (p, NISENTRYVAL (0, 2, result), NISENTRYLEN (0, 2, result));
- room_left -= (NISENTRYLEN (0, 2, result) + 1);
+ /* Skip leading blanks. */
+ while (isspace (*line))
+ line++;
- for (i = 1; i < result->objects.objects_len; i++)
- {
- if (NISENTRYLEN (i, 1, result) + 1 > room_left)
- {
- __set_errno (ERANGE);
- return 0;
+ if (*line == '\0')
+ break;
+
+ if (room_left < sizeof (char *))
+ goto no_more_room;
+
+ room_left -= sizeof (char *);
+ serv->s_aliases[i] = line;
+
+ while (*line != '\0' && *line != ' ')
+ ++line;
+
+ if (*line == ' ')
+ {
+ *line = '\0';
+ ++line;
+ ++i;
}
- strcat (p, " ");
- strcat (p, NISENTRYVAL (i, 1, result));
- room_left -= (NISENTRYLEN (i, 1, result) + 1);
+ else
+ serv->s_aliases[i+1] = NULL;
}
- return _nss_files_parse_servent (p, serv, data, buflen);
+ return 1;
+}
+
+static enum nss_status
+_nss_create_tablename (void)
+{
+ if (tablename_val == NULL)
+ {
+ char buf [40 + strlen (nis_local_directory ())];
+ char *p;
+
+ p = stpcpy (buf, "services.org_dir.");
+ p = stpcpy (p, nis_local_directory ());
+ tablename_val = strdup (buf);
+ if (tablename_val == NULL)
+ return NSS_STATUS_TRYAGAIN;
+ tablename_len = strlen (tablename_val);
+ }
+ return NSS_STATUS_SUCCESS;
}
+
enum nss_status
_nss_nisplus_setservent (void)
{
+ enum nss_status status = NSS_STATUS_SUCCESS;
+
__libc_lock_lock (lock);
if (result)
nis_freeresult (result);
result = NULL;
- if (names)
- {
- nis_freenames (names);
- names = NULL;
- }
+
+ if (tablename_val == NULL)
+ status = _nss_create_tablename ();
__libc_lock_unlock (lock);
- return NSS_STATUS_SUCCESS;
+ return status;
}
enum nss_status
@@ -142,11 +189,6 @@ _nss_nisplus_endservent (void)
if (result)
nis_freeresult (result);
result = NULL;
- if (names)
- {
- nis_freenames (names);
- names = NULL;
- }
__libc_lock_unlock (lock);
@@ -164,11 +206,11 @@ internal_nisplus_getservent_r (struct servent *serv, char *buffer,
{
if (result == NULL)
{
- names = nis_getnames ("services.org_dir");
- if (names == NULL || names[0] == NULL)
- return NSS_STATUS_UNAVAIL;
+ if (tablename_val == NULL)
+ if (_nss_create_tablename () != NSS_STATUS_SUCCESS)
+ return NSS_STATUS_UNAVAIL;
- result = nis_first_entry (names[0]);
+ result = nis_first_entry (tablename_val);
if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
return niserr2nss (result->status);
}
@@ -176,7 +218,7 @@ internal_nisplus_getservent_r (struct servent *serv, char *buffer,
{
nis_result *res;
- res = nis_next_entry (names[0], &result->cookie);
+ res = nis_next_entry (tablename_val, &result->cookie);
nis_freeresult (result);
result = res;
if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
@@ -212,6 +254,10 @@ _nss_nisplus_getservbyname_r (const char *name, const char *protocol,
{
int parse_res;
+ if (tablename_val == NULL)
+ if (_nss_create_tablename () != NSS_STATUS_SUCCESS)
+ return NSS_STATUS_UNAVAIL;
+
if (name == NULL || protocol == NULL)
{
__set_errno (EINVAL);
@@ -220,29 +266,30 @@ _nss_nisplus_getservbyname_r (const char *name, const char *protocol,
else
{
nis_result *result;
- char buf[strlen (name) + 255];
+ char buf[strlen (name) + 255 + tablename_len];
/* Search at first in the alias list, and use the correct name
for the next search */
- sprintf (buf, "[name=%s,proto=%s],services.org_dir", name,
- protocol);
- result = nis_list (buf, EXPAND_NAME, NULL, NULL);
+ sprintf (buf, "[name=%s,proto=%s],%s", name, protocol,
+ tablename_val);
+ result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
/* If we do not find it, try it as original name. But if the
database is correct, we should find it in the first case, too */
if ((result->status != NIS_SUCCESS &&
result->status != NIS_S_SUCCESS) ||
- result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ ||
- strcmp (result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type,
+ __type_of (result->objects.objects_val) != ENTRY_OBJ ||
+ strcmp (result->objects.objects_val->EN_data.en_type,
"services_tbl") != 0 ||
- result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 4)
- sprintf (buf, "[cname=%s,proto=%s],services.org_dir", name, protocol);
+ result->objects.objects_val->EN_data.en_cols.en_cols_len < 4)
+ sprintf (buf, "[cname=%s,proto=%s],%s", name, protocol,
+ tablename_val);
else
- sprintf (buf, "[cname=%s,proto=%s],services.org_dir",
- NISENTRYVAL (0, 0, result), protocol);
+ sprintf (buf, "[cname=%s,proto=%s],%s",
+ NISENTRYVAL (0, 0, result), protocol, tablename_val);
nis_freeresult (result);
- result = nis_list (buf, EXPAND_NAME, NULL, NULL);
+ result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
{
@@ -271,38 +318,44 @@ _nss_nisplus_getservbynumber_r (const int number, const char *protocol,
struct servent *serv,
char *buffer, size_t buflen)
{
- int parse_res;
- nis_result *result;
- char buf[60 + strlen (protocol)];
+ if (tablename_val == NULL)
+ if (_nss_create_tablename () != NSS_STATUS_SUCCESS)
+ return NSS_STATUS_UNAVAIL;
if (protocol == NULL)
{
__set_errno (EINVAL);
return NSS_STATUS_NOTFOUND;
}
+ else
+ {
+ int parse_res;
+ nis_result *result;
+ char buf[60 + strlen (protocol) + tablename_len];
- snprintf (buf, sizeof (buf), "[number=%d,proto=%s],services.org_dir",
- number, protocol);
+ snprintf (buf, sizeof (buf), "[number=%d,proto=%s],%s",
+ number, protocol, tablename_val);
- result = nis_list (buf, EXPAND_NAME, NULL, NULL);
+ result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
- if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
- {
- enum nss_status status = niserr2nss (result->status);
+ if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
+ {
+ enum nss_status status = niserr2nss (result->status);
- nis_freeresult (result);
- return status;
- }
+ nis_freeresult (result);
+ return status;
+ }
- parse_res = _nss_nisplus_parse_servent (result, serv, buffer, buflen);
+ parse_res = _nss_nisplus_parse_servent (result, serv, buffer, buflen);
- nis_freeresult (result);
+ nis_freeresult (result);
- if (parse_res)
- return NSS_STATUS_SUCCESS;
+ if (parse_res)
+ return NSS_STATUS_SUCCESS;
- if (!parse_res && errno == ERANGE)
- return NSS_STATUS_TRYAGAIN;
- else
- return NSS_STATUS_NOTFOUND;
+ if (!parse_res && errno == ERANGE)
+ return NSS_STATUS_TRYAGAIN;
+ else
+ return NSS_STATUS_NOTFOUND;
+ }
}