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-rw-r--r--nss/Makefile2
-rw-r--r--nss/databases.def1
-rw-r--r--nss/db-Makefile10
-rw-r--r--nss/getXXent_r.c6
-rw-r--r--nss/netgrp-lookup.c22
-rw-r--r--nss/nss.h1
-rw-r--r--nss/nss_db/db-XXX.c10
-rw-r--r--nss/nss_db/db-netgrp.c108
-rw-r--r--nss/nss_dns/dns-network.c7
-rw-r--r--nss/nss_files/files-netgrp.c262
-rw-r--r--nss/nsswitch.c3
-rw-r--r--nss/nsswitch.conf2
-rw-r--r--nss/nsswitch.h2
13 files changed, 420 insertions, 16 deletions
diff --git a/nss/Makefile b/nss/Makefile
index b900e96..319bad5 100644
--- a/nss/Makefile
+++ b/nss/Makefile
@@ -33,7 +33,7 @@ routines = nsswitch $(addsuffix -lookup,$(databases))
# Caution: if you add a database here, you must add its real name
# in databases.def, too.
databases = proto service hosts network grp pwd rpc ethers \
- spwd
+ spwd netgrp
# Specify rules for the nss_* modules. We have some services.
services := files dns db
diff --git a/nss/databases.def b/nss/databases.def
index 98772ba..8a5ede2 100644
--- a/nss/databases.def
+++ b/nss/databases.def
@@ -23,6 +23,7 @@ Boston, MA 02111-1307, USA. */
DEFINE_DATABASE (ethers)
DEFINE_DATABASE (group)
DEFINE_DATABASE (hosts)
+DEFINE_DATABASE (netgroup)
DEFINE_DATABASE (networks)
DEFINE_DATABASE (passwd)
DEFINE_DATABASE (protocols)
diff --git a/nss/db-Makefile b/nss/db-Makefile
index 55edd66..756f4c6 100644
--- a/nss/db-Makefile
+++ b/nss/db-Makefile
@@ -1,5 +1,5 @@
DATABASES = $(wildcard /etc/passwd /etc/group /etc/ethers /etc/protocols \
- /etc/rpc /etc/services /etc/shadow)
+ /etc/rpc /etc/services /etc/shadow /etc/netgroup)
VAR_DB = /var/db
@@ -67,3 +67,11 @@ $(VAR_DB)/shadow.db: /etc/shadow
/^[^#]/ { printf ".%s ", $$1; print }' $^ | \
$(MAKEDB) -o $@ -
@echo "done."
+
+$(VAR_DB)/netgroup.db: /etc/netgroup
+ @echo -n "$(patsubst %.db,%,$(@F))... "
+ @$(AWK) '/^[^#]/ { end=sub(/\\/, " "); \
+ gsub(/[ \t]+/, " "); \
+ if(end == 1) printf "%s", $$0; else print }' $^ | \
+ $(MAKEDB) -o $@ -
+ @echo "done."
diff --git a/nss/getXXent_r.c b/nss/getXXent_r.c
index ea391fe..6bff863 100644
--- a/nss/getXXent_r.c
+++ b/nss/getXXent_r.c
@@ -136,7 +136,7 @@ SETFUNC_NAME (STAYOPEN)
#ifdef NEED__RES
if ((_res.options & RES_INIT) == 0 && res_init () == -1)
{
- h_errno = NETDB_INTERNAL;
+ __set_h_errno (NETDB_INTERNAL);
return NULL;
}
#endif /* need _res */
@@ -166,7 +166,7 @@ ENDFUNC_NAME (void)
#ifdef NEED__RES
if ((_res.options & RES_INIT) == 0 && res_init () == -1)
{
- h_errno = NETDB_INTERNAL;
+ __set_h_errno (NETDB_INTERNAL);
return NULL;
}
#endif /* need _res */
@@ -198,7 +198,7 @@ INTERNAL (REENTRANT_GETNAME) (LOOKUP_TYPE *result, char *buffer, int buflen
#ifdef NEED__RES
if ((_res.options & RES_INIT) == 0 && res_init () == -1)
{
- h_errno = NETDB_INTERNAL;
+ __set_h_errno (NETDB_INTERNAL);
return NULL;
}
#endif /* need _res */
diff --git a/nss/netgrp-lookup.c b/nss/netgrp-lookup.c
new file mode 100644
index 0000000..b7ea374
--- /dev/null
+++ b/nss/netgrp-lookup.c
@@ -0,0 +1,22 @@
+/* Copyright (C) 1996 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+#define DATABASE_NAME netgroup
+
+#include "XXX-lookup.c"
diff --git a/nss/nss.h b/nss/nss.h
index e9acb93..8246719 100644
--- a/nss/nss.h
+++ b/nss/nss.h
@@ -37,6 +37,7 @@ enum nss_status
NSS_STATUS_UNAVAIL,
NSS_STATUS_NOTFOUND,
NSS_STATUS_SUCCESS,
+ NSS_STATUS_RETURN
};
diff --git a/nss/nss_db/db-XXX.c b/nss/nss_db/db-XXX.c
index e2bab51..0c41761 100644
--- a/nss/nss_db/db-XXX.c
+++ b/nss/nss_db/db-XXX.c
@@ -56,10 +56,10 @@ static int keep_db;
static unsigned int entidx; /* Index for `getENTNAME'. */
/* Open database file if not already opened. */
-static int
+static enum nss_status
internal_setent (int stayopen)
{
- int status = NSS_STATUS_SUCCESS;
+ enum nss_status status = NSS_STATUS_SUCCESS;
if (db == NULL)
{
@@ -78,10 +78,10 @@ internal_setent (int stayopen)
/* Thread-safe, exported version of that. */
-int
+enum nss_status
CONCAT(_nss_db_set,ENTNAME) (int stayopen)
{
- int status;
+ enum nss_status status;
__libc_lock_lock (lock);
@@ -109,7 +109,7 @@ internal_endent (void)
/* Thread-safe, exported version of that. */
-int
+enum nss_status
CONCAT(_nss_db_end,ENTNAME) (void)
{
__libc_lock_lock (lock);
diff --git a/nss/nss_db/db-netgrp.c b/nss/nss_db/db-netgrp.c
new file mode 100644
index 0000000..441a0bd
--- /dev/null
+++ b/nss/nss_db/db-netgrp.c
@@ -0,0 +1,108 @@
+/* Netgroup file parser in nss_db modules.
+Copyright (C) 1996 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+#include <db.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <libc-lock.h>
+#include <paths.h>
+#include "nsswitch.h"
+#include "netgroup.h"
+
+
+#define DBFILE _PATH_VARDB "netgroup.db"
+
+
+/* Locks the static variables in this file. */
+__libc_lock_define_initialized (static, lock)
+
+/* Maintenance of the shared handle open on the database. */
+static DB *db;
+static char *entry;
+static char *cursor;
+
+enum nss_status
+_nss_db_setnetgrent (const char *group)
+{
+ enum nss_status status = NSS_STATUS_SUCCESS;
+
+ __libc_lock_lock (lock);
+
+ /* Make sure the data base file is open. */
+ if (db == NULL)
+ {
+ db = dbopen (DBFILE, O_RDONLY, 0, DB_BTREE, NULL);
+
+ if (db == NULL)
+ status = errno = EAGAIN ? NSS_STATUS_TRYAGAIN : NSS_STATUS_UNAVAIL;
+ }
+
+ if (status == NSS_STATUS_SUCCESS)
+ {
+ DBT key = { data: (void *) group, size: strlen (group) };
+ DBT value;
+
+ if ((*db->get) (db, &key, &value, 0) != 0)
+ status = NSS_STATUS_NOTFOUND;
+ else
+ cursor = entry = value.data;
+ }
+
+ __libc_lock_unlock (lock);
+
+ return status;
+
+}
+
+
+enum nss_status
+_nss_db_endnetgrent (void)
+{
+ __libc_lock_lock (lock);
+
+ if (db != NULL)
+ {
+ (*db->close) (db);
+ db = NULL;
+ }
+
+ __libc_lock_unlock (lock);
+
+ return NSS_STATUS_SUCCESS;
+}
+
+
+extern enum nss_status _nss_netgroup_parseline (char **cursor,
+ struct __netgrent *result,
+ char *buffer, int buflen);
+
+enum nss_status
+_nss_db_getnetgrent_r (struct __netgrent *result, char *buffer, int buflen)
+{
+ int status;
+
+ __libc_lock_lock (lock);
+
+ status = _nss_netgroup_parseline (&cursor, result, buffer, buflen);
+
+ __libc_lock_unlock (lock);
+
+ return status;
+}
diff --git a/nss/nss_dns/dns-network.c b/nss/nss_dns/dns-network.c
index 1b5d0ce..a2d9d28 100644
--- a/nss/nss_dns/dns-network.c
+++ b/nss/nss_dns/dns-network.c
@@ -236,12 +236,12 @@ getanswer_r (const querybuf *answer, int anslen, struct netent *result,
OSF/1 has a per-thread h_errno variable. */
if (header_pointer->aa != 0)
{
- h_errno = HOST_NOT_FOUND;
+ __set_h_errno (HOST_NOT_FOUND);
return NSS_STATUS_NOTFOUND;
}
else
{
- h_errno = TRY_AGAIN;
+ __set_h_errno (TRY_AGAIN);
return NSS_STATUS_TRYAGAIN;
}
@@ -338,7 +338,6 @@ getanswer_r (const querybuf *answer, int anslen, struct netent *result,
return NSS_STATUS_SUCCESS;
}
- /* XXX Really use global variable??? */
- h_errno = TRY_AGAIN;
+ __set_h_errno (TRY_AGAIN);
return NSS_STATUS_TRYAGAIN;
}
diff --git a/nss/nss_files/files-netgrp.c b/nss/nss_files/files-netgrp.c
new file mode 100644
index 0000000..8af55f2
--- /dev/null
+++ b/nss/nss_files/files-netgrp.c
@@ -0,0 +1,262 @@
+/* Netgroup file parser in nss_files modules.
+Copyright (C) 1996 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+#include <ctype.h>
+#include <errno.h>
+#include <libc-lock.h>
+#include <netdb.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "nsswitch.h"
+#include "netgroup.h"
+
+#define DATAFILE "/etc/netgroup"
+
+
+/* Locks the static variables in this file. */
+__libc_lock_define_initialized (static, lock)
+
+/* We share a single place where we store the data for the current
+ netgroup. This buffer is allocated by `setnetgrent' and freed on
+ the next call of this function or when calling `endnetgrent'. */
+static char *data;
+static size_t data_size;
+static char *cursor;
+static int first;
+
+
+#define EXPAND(needed) \
+ do \
+ { \
+ size_t old_cursor = cursor - data; \
+ \
+ data_size += 512 > 2 * needed ? 512 : 2 * needed; \
+ data = realloc (data, data_size); \
+ \
+ if (data == NULL) \
+ { \
+ status = NSS_STATUS_UNAVAIL; \
+ goto the_end; \
+ } \
+ \
+ cursor = data + old_cursor; \
+ } \
+ while (0)
+
+
+enum nss_status
+_nss_files_setnetgrent (const char *group)
+{
+ FILE *fp;
+ enum nss_status status;
+
+ if (group[0] == '\0')
+ return NSS_STATUS_UNAVAIL;
+
+ __libc_lock_lock (lock);
+
+ /* Find the netgroups file and open it. */
+ fp = fopen (DATAFILE, "r");
+ if (fp == NULL)
+ status = errno == EAGAIN ? NSS_STATUS_TRYAGAIN : NSS_STATUS_UNAVAIL;
+ else
+ {
+ /* Read the file line by line and try to find the description
+ GROUP. We must take care for long lines. */
+ char *line = NULL;
+ size_t line_len = 0;
+ const ssize_t group_len = strlen (group);
+
+ status = NSS_STATUS_NOTFOUND;
+ cursor = data;
+
+ while (!feof (fp))
+ {
+ ssize_t curlen = getline (&line, &line_len, fp);
+ int found;
+
+ if (curlen < 0)
+ {
+ status = NSS_STATUS_NOTFOUND;
+ break;
+ }
+
+ found = (curlen > group_len && strncmp (line, group, group_len) == 0
+ && isspace (line[group_len]));
+
+ /* Read the whole line (including continuation) and store it
+ if FOUND in nonzero. Otherwise we don't need it. */
+ if (found)
+ {
+ /* Store the data from the first line. */
+ EXPAND (curlen - group_len);
+ memcpy (cursor, &line[group_len + 1], curlen - group_len);
+ cursor += (curlen - group_len) - 1;
+ }
+
+ while (line[curlen - 1] == '\n' && line[curlen - 2] == '\\')
+ {
+ /* Yes, we have a continuation line. */
+ if (found)
+ /* Remove these characters from the stored line. */
+ cursor -= 2;
+
+ /* Get netxt line. */
+ curlen = getline (&line, &line_len, fp);
+ if (curlen <= 0)
+ break;
+
+ if (found)
+ {
+ /* Make sure we have enough room. */
+ EXPAND (1 + curlen + 1);
+
+ /* Add separator in case next line starts immediately. */
+ *cursor++ = ' ';
+
+ /* Copy new line. */
+ memcpy (cursor, line, curlen + 1);
+ cursor += curlen;
+ }
+ }
+
+ if (found)
+ {
+ /* Now we have read the line. */
+ status = NSS_STATUS_SUCCESS;
+ cursor = data;
+ first = 1;
+ break;
+ }
+ }
+
+ the_end:
+ /* We don't need the file and the line buffer anymore. */
+ free (line);
+ fclose (fp);
+ }
+
+ __libc_lock_unlock (lock);
+
+ return status;
+}
+
+
+int
+_nss_files_endnetgrent (void)
+{
+ __libc_lock_lock (lock);
+
+ /* Free allocated memory for data if some is present. */
+ if (data != NULL)
+ {
+ free (data);
+ data = NULL;
+ data_size = 0;
+ cursor = NULL;
+ }
+
+ __libc_lock_unlock (lock);
+
+ return NSS_STATUS_SUCCESS;
+}
+
+
+enum nss_status
+_nss_netgroup_parseline (char **cursor, struct __netgrent *result,
+ char *buffer, int buflen)
+{
+ enum nss_status status;
+ const char *host, *user, *domain;
+ char *cp = *cursor;
+
+ /* First skip leading spaces. */
+ while (isspace (*cp))
+ ++cp;
+
+ if (*cp != '(')
+ return first ? NSS_STATUS_NOTFOUND : NSS_STATUS_RETURN;
+
+ /* Match host name. */
+ host = ++cp;
+ while (*cp != ',')
+ if (*cp++ == '\0')
+ return first ? NSS_STATUS_NOTFOUND : NSS_STATUS_RETURN;
+
+ /* Match user name. */
+ user = ++cp;
+ while (*cp != ',')
+ if (*cp++ == '\0')
+ return first ? NSS_STATUS_NOTFOUND : NSS_STATUS_RETURN;
+
+ /* Match domain name. */
+ domain = ++cp;
+ while (*cp != ')')
+ if (*cp++ == '\0')
+ return first ? NSS_STATUS_NOTFOUND : NSS_STATUS_RETURN;
+ ++cp;
+
+
+ /* When we got here we have found an entry. Before we can copy it
+ to the private buffer we have to make sure it is big enough. */
+ if (cp - host > buflen)
+ {
+ __set_errno (ERANGE);
+ status = NSS_STATUS_UNAVAIL;
+ }
+ else
+ {
+ memcpy (buffer, host, cp - host);
+
+ buffer[(user - host) - 1] = '\0';
+ result->host = *host == ',' ? NULL : buffer;
+
+ buffer[(domain - host) - 1] = '\0';
+ result->user = *user == ',' ? NULL : buffer + (user - host);
+
+ buffer[(cp - host) - 1] = '\0';
+ result->domain = *domain == ')' ? NULL : buffer + (domain - host);
+
+ status = NSS_STATUS_SUCCESS;
+
+ /* Rememember where we stopped reading. */
+ *cursor = cp;
+
+ first = 0;
+ }
+
+ return status;
+}
+
+
+enum nss_status
+_nss_files_getnetgrent_r (struct __netgrent *result, char *buffer, int buflen)
+{
+ enum nss_status status;
+
+ __libc_lock_lock (lock);
+
+ status = _nss_netgroup_parseline (&cursor, result, buffer, buflen);
+
+ __libc_lock_unlock (lock);
+
+ return status;
+}
diff --git a/nss/nsswitch.c b/nss/nsswitch.c
index f49ddb9..9f27ef80f 100644
--- a/nss/nsswitch.c
+++ b/nss/nsswitch.c
@@ -158,7 +158,7 @@ __nss_next (service_user **ni, const char *fct_name, void **fctp, int status,
else
{
/* This is really only for debugging. */
- if (NSS_STATUS_TRYAGAIN > status || status > NSS_STATUS_SUCCESS)
+ if (NSS_STATUS_TRYAGAIN > status || status > NSS_STATUS_RETURN)
__libc_fatal ("illegal status in " __FUNCTION__);
if (nss_next_action (*ni, status) == NSS_ACTION_RETURN)
@@ -503,6 +503,7 @@ nss_parse_service_list (const char *line)
new_service->actions[2 + NSS_STATUS_UNAVAIL] = NSS_ACTION_CONTINUE;
new_service->actions[2 + NSS_STATUS_NOTFOUND] = NSS_ACTION_CONTINUE;
new_service->actions[2 + NSS_STATUS_SUCCESS] = NSS_ACTION_RETURN;
+ new_service->actions[2 + NSS_STATUS_RETURN] = NSS_ACTION_RETURN;
new_service->library = NULL;
new_service->known = NULL;
new_service->next = NULL;
diff --git a/nss/nsswitch.conf b/nss/nsswitch.conf
index 08bd96e..63a7875 100644
--- a/nss/nsswitch.conf
+++ b/nss/nsswitch.conf
@@ -14,3 +14,5 @@ protocols: db files
services: db files
ethers: db files
rpc: db files
+
+netgroup: db files
diff --git a/nss/nsswitch.h b/nss/nsswitch.h
index 0c99f14..df4e0f7 100644
--- a/nss/nsswitch.h
+++ b/nss/nsswitch.h
@@ -62,7 +62,7 @@ typedef struct service_user
/* Name of the service (`files', `dns', `nis', ...). */
const char *name;
/* Action according to result. */
- lookup_actions actions[4];
+ lookup_actions actions[5];
/* Link to the underlying library object. */
service_library *library;
/* Collection of known functions. */