PERFORCE change 99627 for review

Michael Bushkov bushman at FreeBSD.org
Mon Jun 19 17:37:05 UTC 2006


http://perforce.freebsd.org/chv.cgi?CH=99627

Change 99627 by bushman at bushman_nss_ldap_cached on 2006/06/19 17:36:35

	Nss-modules development is almost done. nss_compat module added. It uses dirty hack by including files_serv.c file from the nss_files module to avoid massive code duplication. nss_icmp builds normally - not tested at all, though. libnssutil extended with __copy_netent, __rpcent_unpack and __servent_unpack. __copy_hostent() is also in libnssutil, but gethostby***() functions uses its own local copy at the moment.

Affected files ...

.. //depot/projects/soc2006/nss_ldap_cached/src/lib/libnssutil/Makefile#3 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/libnssutil/copyhtent.c#2 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/libnssutil/copyhtent.h#2 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/libnssutil/rpcunpack.c#1 add
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/libnssutil/rpcunpack.h#1 add
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/libnssutil/servunpack.c#1 add
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/libnssutil/servunpack.h#1 add
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_compat/Makefile#1 add
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_compat/compat_group.c#1 add
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_compat/compat_group.h#1 add
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_compat/compat_passwd.c#1 add
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_compat/compat_passwd.h#1 add
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_compat/compat_serv.c#1 add
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_compat/compat_serv.h#1 add
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_compat/nss_compat.c#1 add
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_compat/nss_compat.h#1 add
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_dns/Makefile#3 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_dns/dns_group.c#2 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_dns/dns_hosts_namadr.c#5 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_dns/dns_hosts_namadr.h#2 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_dns/dns_net.c#2 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_dns/dns_net.h#2 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_dns/dns_passwd.c#2 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_dns/nss_dns.c#4 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_dns/nss_dns.h#2 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_files/Makefile#3 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_files/files_hosts_namadr.h#2 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_files/files_net.c#3 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_files/files_passwd.c#2 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_files/files_proto.c#2 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_files/files_rpc.c#2 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_files/files_rpc.h#2 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_files/files_serv.c#2 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_files/nss_files.c#6 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_files/nss_files.h#4 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_icmp/Makefile#2 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_nis/Makefile#3 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_nis/nis_net.c#2 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_nis/nis_net.h#2 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_nis/nis_rpc.c#1 add
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_nis/nis_rpc.h#1 add
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_nis/nis_serv.c#1 add
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_nis/nis_serv.h#1 add
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_nis/nss_nis.c#3 edit
.. //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_nis/nss_nis.h#2 edit

Differences ...

==== //depot/projects/soc2006/nss_ldap_cached/src/lib/libnssutil/Makefile#3 (text+ko) ====

@@ -1,7 +1,9 @@
 # $FreeBSD$
 
 LIB=	nssutil
-SRCS=	copynetent.c copyhtent.c gr_scan.c pw_scan.c
+SRCS=	copynetent.c copyhtent.c gr_scan.c pw_scan.c rpcunpack.c\
+	servunpack.c
+INTERNAL=
 NO_PIC=
 
 .include <bsd.lib.mk>

==== //depot/projects/soc2006/nss_ldap_cached/src/lib/libnssutil/copyhtent.c#2 (text+ko) ====

@@ -1,26 +1,18 @@
-/*-
- * Copyright (c) 1994, Garrett Wollman
+/*
+ * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (c) 1998-1999 by Internet Software Consortium.
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
  *
- * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+ * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
 #include <sys/cdefs.h>

==== //depot/projects/soc2006/nss_ldap_cached/src/lib/libnssutil/copyhtent.h#2 (text+ko) ====

@@ -1,4 +1,3 @@
-
 /*-
  * Copyright (c) 2006 Michael Bushkov <bushman at rsu.ru>
  * All rights reserved.

==== //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_dns/Makefile#3 (text+ko) ====

@@ -1,14 +1,28 @@
 #	$FreeBSD$
 
-LIB=	nss_dns
-SHLIB_MAJOR= 1
-SHLIBDIR?= /lib
-PROG= nss_dns
+.include <bsd.own.mk>
+
+SHLIB_MAJOR=	1
+SHLIB_NAME=	nss_dns.so.${SHLIB_MAJOR}
+SHLIBDIR?=	/lib
+
+SRCS=	nss_dns.c dns_hosts_namadr.c dns_hosts_addrinfo.c dns_passwd.c\
+	dns_group.c dns_net.c
 CFLAGS+=-I${.CURDIR} -I${.CURDIR}/../libc/gen -I${.CURDIR}/../libc/include\
-	-I${.CURDIR}/../libc/net
-SRCS=	nss_dns.c dns_hosts_namadr.c dns_hosts_addrinfo.c dns_passwd.c
+	-I${.CURDIR}/../libc/net -I${.CURDIR}/../libnssutil
+CFLAGS+=-DINET6
+
+.if ${MK_NIS} != "no"
+CFLAGS+= -DYP
+.endif
+.if ${MK_HESIOD} != "no"
+CFLAGS+= -DHESIOD
+.endif
+
+LDADD+= -lnssutil
+LDFLAGS+= -L${.CURDIR}/../libnssutil
+
 INCS=	
-
 MAN=	
 
 .include <bsd.lib.mk>

==== //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_dns/dns_group.c#2 (text+ko) ====

@@ -37,7 +37,9 @@
 #include <sys/param.h>
 #include <ctype.h>
 #include <errno.h>
-#include <hesiod.h> /* we don't need to #ifdef it anymore */
+#ifdef HESIOD
+#include <hesiod.h>
+#endif
 #include <grp.h>
 #include <nsswitch.h>
 #include <pthread.h>
@@ -50,6 +52,9 @@
 #include "nss_tls.h"
 #include "gr_scan.h"
 
+#ifdef HESIOD
+#define HESIOD_NAME_MAX 256
+
 struct dns_state {
 	long	counter;
 };
@@ -62,11 +67,13 @@
 
 	free(p);
 }
+#endif
 
 
 int
 __dns_setgrent(void *retval, void *cb_data, va_list ap)
 {
+#ifdef HESIOD
 	struct dns_state	*st;
 	int			 rv;
 
@@ -74,6 +81,7 @@
 	if (rv != 0)
 		return (NS_UNAVAIL);
 	st->counter = 0;
+#endif
 	return (NS_UNAVAIL);
 }
 
@@ -81,6 +89,7 @@
 int
 __dns_group(void *retval, void *mdata, va_list ap)
 {
+#ifdef HESIOD
 	char			 buf[HESIOD_NAME_MAX];
 	struct dns_state	*st;
 	struct group		*grp;
@@ -181,4 +190,7 @@
 	if (rv == NS_SUCCESS && retval != NULL)
 		*(struct group **)retval = grp;
 	return (rv);
+#else
+	return (NS_UNAVAIL);
+#endif		
 }

==== //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_dns/dns_hosts_namadr.c#5 (text+ko) ====

@@ -78,8 +78,77 @@
 #include "netdb_private.h"
 #include "nss_dns.h"
 
+#define SPRINTF(x) ((size_t)sprintf x)
+
+static const char AskedForGot[] =
+		"gethostby*.gethostanswer: asked for \"%s\", got \"%s\"";
+
+#ifdef RESOLVSORT
+static void addrsort(char **, int, res_state);
+#endif
+
+#ifdef DEBUG
+static void dprintf(char *, int, res_state) __printflike(1, 0);
+#endif
+
+#define MAXPACKET	(64*1024)
+
+typedef union {
+    HEADER hdr;
+    u_char buf[MAXPACKET];
+} querybuf;
+
+typedef union {
+    int32_t al;
+    char ac;
+} align;
+
+int _dns_ttl_;
+
+#ifdef DEBUG
+static void
+dprintf(msg, num, res)
+	char *msg;
+	int num;
+	res_state res;
+{
+	if (res->options & RES_DEBUG) {
+		int save = errno;
+
+		printf(msg, num);
+		errno = save;
+	}
+}
+#else
+# define dprintf(msg, num, res) /*nada*/
+#endif
+
+#define BOUNDED_INCR(x) \
+	do { \
+		cp += x; \
+		if (cp > eom) { \
+			RES_SET_H_ERRNO(statp, NO_RECOVERY); \
+			return (-1); \
+		} \
+	} while (0)
+
+#define BOUNDS_CHECK(ptr, count) \
+	do { \
+		if ((ptr) + (count) > eom) { \
+			RES_SET_H_ERRNO(statp, NO_RECOVERY); \
+			return (-1); \
+		} \
+	} while (0)
+
 NETDB_THREAD_ALLOC(hostent)
 NETDB_THREAD_ALLOC(dns_hostent_data)
+	
+static int __copy_hostent(struct hostent *, struct hostent *, char *,
+    size_t);
+static void dns_hostent_data_free(void *);
+static int gethostanswer(const querybuf *, int, const char *, int,
+    struct hostent *, struct dns_hostent_data *, res_state);
+static void hostent_free(void *);
 
 static void
 hostent_free(void *ptr)
@@ -160,68 +229,6 @@
 	return (0);
 }
 
-#define SPRINTF(x) ((size_t)sprintf x)
-
-static const char AskedForGot[] =
-		"gethostby*.gethostanswer: asked for \"%s\", got \"%s\"";
-
-#ifdef RESOLVSORT
-static void addrsort(char **, int, res_state);
-#endif
-
-#ifdef DEBUG
-static void dprintf(char *, int, res_state) __printflike(1, 0);
-#endif
-
-#define MAXPACKET	(64*1024)
-
-typedef union {
-    HEADER hdr;
-    u_char buf[MAXPACKET];
-} querybuf;
-
-typedef union {
-    int32_t al;
-    char ac;
-} align;
-
-int _dns_ttl_;
-
-#ifdef DEBUG
-static void
-dprintf(msg, num, res)
-	char *msg;
-	int num;
-	res_state res;
-{
-	if (res->options & RES_DEBUG) {
-		int save = errno;
-
-		printf(msg, num);
-		errno = save;
-	}
-}
-#else
-# define dprintf(msg, num, res) /*nada*/
-#endif
-
-#define BOUNDED_INCR(x) \
-	do { \
-		cp += x; \
-		if (cp > eom) { \
-			RES_SET_H_ERRNO(statp, NO_RECOVERY); \
-			return (-1); \
-		} \
-	} while (0)
-
-#define BOUNDS_CHECK(ptr, count) \
-	do { \
-		if ((ptr) + (count) > eom) { \
-			RES_SET_H_ERRNO(statp, NO_RECOVERY); \
-			return (-1); \
-		} \
-	} while (0)
-
 static int
 gethostanswer(const querybuf *answer, int anslen, const char *qname, int qtype,
     struct hostent *he, struct dns_hostent_data *hed, res_state statp)
@@ -817,24 +824,38 @@
 }
 #endif
 
-void
-__dns_sethostent(int stayopen)
+/* ARGSUSED */
+int 
+__dns_gethostent_r(void *rval, void *cb_data, va_list ap)
+{
+	return (NS_UNAVAIL);	
+}
+
+int 
+__dns_sethostent(void *rval, void *cb_data, va_list ap)
 {
 	res_state statp;
+	int f;
+	
+	f = va_arg(ap, int);	
 
 	statp = __res_state();
 	if ((statp->options & RES_INIT) == 0 && res_ninit(statp) == -1)
 		return;
-	if (stayopen)
+	if (f)
 		statp->options |= RES_STAYOPEN | RES_USEVC;
+		
+	return (NS_UNAVAIL);
 }
 
-void
-__dns_endhostent()
+int 
+__dns_endhostent(void *rval, void *cb_data, va_list ap)
 {
 	res_state statp;
 
 	statp = __res_state();
 	statp->options &= ~(RES_STAYOPEN | RES_USEVC);
 	res_nclose(statp);
+
+	return (NS_UNAVAIL);
 }

==== //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_dns/dns_hosts_namadr.h#2 (text+ko) ====

@@ -28,5 +28,6 @@
  
 int __dns_gethostbyname2_r(void *rval, void *cb_data, va_list ap);
 int __dns_gethostbyaddr_r(void *rval, void *cb_data, va_list ap);
-void __dns_sethostent(int stayopen);
-void __dns_endhostent();
+int __dns_gethostent_r(void *rval, void *cb_data, va_list ap);
+int __dns_sethostent(void *rval, void *cb_data, va_list ap);
+int __dns_endhostent(void *rval, void *cb_data, va_list ap);

==== //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_dns/dns_net.c#2 (text+ko) ====

@@ -1,0 +1,496 @@
+/*-
+ * Copyright (c) 1985, 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * -
+ * Portions Copyright (c) 1993 by Digital Equipment Corporation.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies, and that
+ * the name of Digital Equipment Corporation not be used in advertising or
+ * publicity pertaining to distribution of the document or software without
+ * specific, written prior permission.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
+ * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ * -
+ * --Copyright--
+ */
+/* Portions Copyright (c) 1993 Carlos Leandro and Rui Salgueiro
+ *	Dep. Matematica Universidade de Coimbra, Portugal, Europe
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ */
+ 
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <arpa/nameser.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <netdb.h>
+#include <resolv.h>
+#include <ctype.h>
+#include <string.h>
+#include <unistd.h>
+#include <syslog.h>
+#include <stdarg.h>
+#include <nsswitch.h>
+#include "netdb_private.h"
+#include "nss_dns.h"
+#include "reentrant.h"
+#include "res_config.h"
+#include "copynetent.h"
+
+#define BYADDR 0
+#define BYNAME 1
+
+#define MAXPACKET	(64*1024)
+
+typedef union {
+	HEADER	hdr;
+	u_char	buf[MAXPACKET];
+} querybuf;
+
+typedef union {
+	long	al;
+	char	ac;
+} align;
+
+NETDB_THREAD_ALLOC(dns_netent_data)
+
+static void dns_netent_data_free(void *);
+static void ipreverse(char *, char *);
+static int getnetanswer(querybuf *, int, int, struct netent *,
+	struct dns_netent_data *, res_state);
+
+static void
+dns_netent_data_free(void *ptr)
+{
+	struct dns_netent_data *ned = ptr;
+
+	if (ned == NULL)
+		return;
+	free(ned);
+}
+
+
+/*
+ * Reverse the order of first four dotted entries of in.
+ * Out must contain space for at least strlen(in) characters.
+ * The result does not include any leading 0s of in.
+ */
+static void
+ipreverse(char *in, char *out)
+{
+	char *pos[4];
+	int len[4];
+	char *p, *start;
+	int i = 0;
+	int leading = 1;
+
+	/* Fill-in element positions and lengths: pos[], len[]. */
+	start = p = in;
+	for (;;) {
+		if (*p == '.' || *p == '\0') {
+			/* Leading 0? */
+			if (leading && p - start == 1 && *start == '0')
+				len[i] = 0;
+			else {
+				len[i] = p - start;
+				leading = 0;
+			}
+			pos[i] = start;
+			start = p + 1;
+			i++;
+		}
+		if (i == 4)
+			break;
+		if (*p == 0) {
+			for (; i < 4; i++) {
+				pos[i] = p;
+				len[i] = 0;
+			}
+			break;
+		}
+		p++;
+	}
+
+	/* Copy the entries in reverse order */
+	p = out;
+	leading = 1;
+	for (i = 3; i >= 0; i--) {
+		memcpy(p, pos[i], len[i]);
+		if (len[i])
+			leading = 0;
+		p += len[i];
+		/* Need a . separator? */
+		if (!leading && i > 0 && len[i - 1])
+			*p++ = '.';
+	}
+	*p = '\0';
+}
+
+static int
+getnetanswer(querybuf *answer, int anslen, int net_i, struct netent *ne,
+    struct dns_netent_data *ned, res_state statp)
+{
+
+	HEADER *hp;
+	u_char *cp;
+	int n;
+	u_char *eom;
+	int type, class, ancount, qdcount, haveanswer;
+	char aux[MAXHOSTNAMELEN];
+	char ans[MAXHOSTNAMELEN];
+	char *in, *bp, *ep, **ap;
+
+	/*
+	 * find first satisfactory answer
+	 *
+	 *      answer --> +------------+  ( MESSAGE )
+	 *		   |   Header   |
+	 *		   +------------+
+	 *		   |  Question  | the question for the name server
+	 *		   +------------+
+	 *		   |   Answer   | RRs answering the question
+	 *		   +------------+
+	 *		   | Authority  | RRs pointing toward an authority
+	 *		   | Additional | RRs holding additional information
+	 *		   +------------+
+	 */
+	eom = answer->buf + anslen;
+	hp = &answer->hdr;
+	ancount = ntohs(hp->ancount); /* #/records in the answer section */
+	qdcount = ntohs(hp->qdcount); /* #/entries in the question section */
+	bp = ned->netbuf;
+	ep = ned->netbuf + sizeof(ned->netbuf);
+	cp = answer->buf + HFIXEDSZ;
+	if (!qdcount) {
+		if (hp->aa)
+			RES_SET_H_ERRNO(statp, HOST_NOT_FOUND);
+		else
+			RES_SET_H_ERRNO(statp, TRY_AGAIN);
+		return (-1);
+	}
+	while (qdcount-- > 0)
+		cp += __dn_skipname(cp, eom) + QFIXEDSZ;
+	ap = ned->net_aliases;
+	*ap = NULL;
+	ne->n_aliases = ned->net_aliases;
+	haveanswer = 0;
+	while (--ancount >= 0 && cp < eom) {
+		n = dn_expand(answer->buf, eom, cp, bp, ep - bp);
+		if ((n < 0) || !res_dnok(bp))
+			break;
+		cp += n;
+		ans[0] = '\0';
+		(void)strncpy(&ans[0], bp, sizeof(ans) - 1);
+		ans[sizeof(ans) - 1] = '\0';
+		GETSHORT(type, cp);
+		GETSHORT(class, cp);
+		cp += INT32SZ;		/* TTL */
+		GETSHORT(n, cp);
+		if (class == C_IN && type == T_PTR) {
+			n = dn_expand(answer->buf, eom, cp, bp, ep - bp);
+			if ((n < 0) || !res_hnok(bp)) {
+				cp += n;
+				return (-1);
+			}
+			cp += n;
+			*ap++ = bp;
+			n = strlen(bp) + 1;
+			bp += n;
+			ne->n_addrtype = (class == C_IN) ? AF_INET : AF_UNSPEC;
+			haveanswer++;
+		}
+	}
+	if (haveanswer) {
+		*ap = NULL;
+		switch (net_i) {
+		case BYADDR:
+			ne->n_name = *ne->n_aliases;
+			ne->n_net = 0L;
+			break;
+		case BYNAME:
+			in = *ne->n_aliases;
+			n = strlen(ans) + 1;
+			if (ep - bp < n) {
+				RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
+				errno = ENOBUFS;
+				return (-1);
+			}
+			strlcpy(bp, ans, ep - bp);
+			ne->n_name = bp;
+			if (strlen(in) + 1 > sizeof(aux)) {
+				RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
+				errno = ENOBUFS;
+				return (-1);
+			}
+			ipreverse(in, aux);
+			ne->n_net = inet_network(aux);
+			break;
+		}
+		ne->n_aliases++;
+		return (0);
+	}
+	RES_SET_H_ERRNO(statp, TRY_AGAIN);
+	return (-1);
+}
+
+int
+__dns_getnetbyaddr_r(void *rval, void *cb_data, va_list ap)
+{
+	uint32_t net;
+	int net_type;
+	char *buffer;
+	size_t buflen;
+	int *errnop, *h_errnop;
+	struct netent *nptr, ne;
+	struct dns_netent_data *ned;
+	unsigned int netbr[4];
+	int nn, anslen, error;
+	querybuf *buf;
+	char qbuf[MAXDNAME];
+	uint32_t net2;
+	res_state statp;
+
+	net = va_arg(ap, uint32_t);
+	net_type = va_arg(ap, int);
+	nptr = va_arg(ap, struct netent *);
+	buffer = va_arg(ap, char *);
+	buflen = va_arg(ap, size_t);
+	errnop = va_arg(ap, int *);
+	h_errnop = va_arg(ap, int *);
+
+	statp = __res_state();
+	if ((statp->options & RES_INIT) == 0 && res_ninit(statp) == -1) {
+		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
+		*h_errnop = statp->res_h_errno;
+		return (NS_UNAVAIL);
+	}
+
+	if ((ned = __dns_netent_data_init()) == NULL) {
+		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
+		*h_errnop = statp->res_h_errno;
+		return (NS_UNAVAIL);
+	}
+
+	*((struct netent **)rval) = NULL;
+
+	if (net_type != AF_INET) {
+		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
+		*h_errnop = statp->res_h_errno;
+		return (NS_UNAVAIL);
+	}
+
+	for (nn = 4, net2 = net; net2; net2 >>= 8)
+		netbr[--nn] = net2 & 0xff;
+	switch (nn) {
+	case 3: 	/* Class A */
+		sprintf(qbuf, "0.0.0.%u.in-addr.arpa", netbr[3]);
+		break;
+	case 2: 	/* Class B */
+		sprintf(qbuf, "0.0.%u.%u.in-addr.arpa", netbr[3], netbr[2]);
+		break;
+	case 1: 	/* Class C */
+		sprintf(qbuf, "0.%u.%u.%u.in-addr.arpa", netbr[3], netbr[2],
+		    netbr[1]);
+		break;
+	case 0: 	/* Class D - E */
+		sprintf(qbuf, "%u.%u.%u.%u.in-addr.arpa", netbr[3], netbr[2],
+		    netbr[1], netbr[0]);
+		break;
+	}
+	if ((buf = malloc(sizeof(*buf))) == NULL) {
+		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
+		*h_errnop = statp->res_h_errno;
+		return (NS_NOTFOUND);
+	}
+	anslen = res_nquery(statp, qbuf, C_IN, T_PTR, (u_char *)buf,
+	    sizeof(*buf));
+	if (anslen < 0) {
+		free(buf);
+#ifdef DEBUG
+		if (statp->options & RES_DEBUG)
+			printf("res_nsearch failed\n");
+#endif
+		*h_errnop = statp->res_h_errno;
+		return (NS_UNAVAIL);
+	} else if (anslen > sizeof(*buf)) {
+		free(buf);
+#ifdef DEBUG
+		if (statp->options & RES_DEBUG)
+			printf("res_nsearch static buffer too small\n");
+#endif
+		*h_errnop = statp->res_h_errno;
+		return (NS_UNAVAIL);
+	}
+	error = getnetanswer(buf, anslen, BYADDR, &ne, ned, statp);
+	free(buf);
+	if (error == 0) {
+		/* Strip trailing zeros */
+		while ((net & 0xff) == 0 && net != 0)
+			net >>= 8;
+		ne.n_net = net;
+		if (__copy_netent(&ne, nptr, buffer, buflen) != 0) {
+			*h_errnop = statp->res_h_errno;
+			return (NS_NOTFOUND);
+		}
+		*((struct netent **)rval) = nptr;
+		return (NS_SUCCESS);
+	}
+	*h_errnop = statp->res_h_errno;
+	return (NS_NOTFOUND);
+}
+
+int
+__dns_getnetbyname_r(void *rval, void *cb_data, va_list ap)
+{
+	const char *net;
+	char *buffer;
+	size_t buflen;
+	int *errnop, *h_errnop;
+	struct netent *nptr, ne;
+	struct dns_netent_data *ned;
+	int anslen, error;
+	querybuf *buf;
+	char qbuf[MAXDNAME];
+	res_state statp;
+
+	net = va_arg(ap, const char *);
+	nptr = va_arg(ap, struct netent *);
+	buffer = va_arg(ap, char *);
+	buflen = va_arg(ap, size_t);
+	errnop = va_arg(ap, int *);
+	h_errnop = va_arg(ap, int *);
+
+	statp = __res_state();
+	if ((statp->options & RES_INIT) == 0 && res_ninit(statp) == -1) {
+		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
+		*h_errnop = statp->res_h_errno;
+		return (NS_UNAVAIL);
+	}
+	if ((ned = __dns_netent_data_init()) == NULL) {
+		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
+		*h_errnop = statp->res_h_errno;
+		return (NS_UNAVAIL);
+	}
+	if ((buf = malloc(sizeof(*buf))) == NULL) {
+		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
+		*h_errnop = statp->res_h_errno;
+		return (NS_NOTFOUND);
+	}
+
+	*((struct netent **)rval) = NULL;
+
+	strncpy(qbuf, net, sizeof(qbuf) - 1);
+	qbuf[sizeof(qbuf) - 1] = '\0';
+	anslen = res_nsearch(statp, qbuf, C_IN, T_PTR, (u_char *)buf,
+	    sizeof(*buf));
+	if (anslen < 0) {
+		free(buf);
+#ifdef DEBUG
+		if (statp->options & RES_DEBUG)
+			printf("res_nsearch failed\n");
+#endif
+		return (NS_UNAVAIL);
+	} else if (anslen > sizeof(*buf)) {
+		free(buf);
+#ifdef DEBUG
+		if (statp->options & RES_DEBUG)
+			printf("res_search static buffer too small\n");
+#endif
+		return (NS_UNAVAIL);
+	}
+	error = getnetanswer(buf, anslen, BYNAME, &ne, ned, statp);
+	free(buf);
+	if (error != 0) {
+		*h_errnop = statp->res_h_errno;
+		return (NS_NOTFOUND);
+	}
+	if (__copy_netent(&ne, nptr, buffer, buflen) != 0) {
+		*h_errnop = statp->res_h_errno;
+		return (NS_NOTFOUND);
+	}
+	*((struct netent **)rval) = nptr;
+	return (NS_SUCCESS);
+}
+
+/* ARGSUSED */
+int
+__dns_getnetent_r(void *rval, void *cb_data, va_list ap)
+{
+	return (NS_UNAVAIL);
+}
+
+int
+__dns_setnetent(void *rval, void *cb_data, va_list ap)
+{
+	res_state statp;
+	int f;
+	
+	f = va_arg(ap, int);
+	
+	statp = __res_state();
+	if ((statp->options & RES_INIT) == 0 && res_ninit(statp) == -1)
+		return;
+	if (f)
+		statp->options |= RES_STAYOPEN | RES_USEVC;
+		
+	return (NS_UNAVAIL);	
+}
+
+int
+__dns_endnetent(void *rval, void *cb_data, va_list ap)
+{
+	res_state statp;
+
+	statp = __res_state();
+	statp->options &= ~(RES_STAYOPEN | RES_USEVC);
+	res_nclose(statp);
+		
+	return (NS_UNAVAIL);	
+}

==== //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_dns/dns_net.h#2 (text+ko) ====

@@ -1,0 +1,33 @@
+/*-
+ * Copyright (c) 2006 Michael Bushkov <bushman at freebsd.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+int __dns_getnetbyname_r(void *rval, void *cb_data, va_list ap);
+int __dns_getnetbyaddr_r(void *rval, void *cb_data, va_list ap);
+int __dns_getnetent_r(void *rval, void *cb_data, va_list ap);
+int __dns_setnetent(void *rval, void *cb_data, va_list ap);
+int __dns_endnetent(void *rval, void *cb_data, va_list ap);

==== //depot/projects/soc2006/nss_ldap_cached/src/lib/nss_dns/dns_passwd.c#2 (text+ko) ====

@@ -38,7 +38,9 @@
 #include <arpa/inet.h>
 #include <errno.h>
 #include <fcntl.h>
-#include <hesiod.h> /* there's no need to #ifdef it anymore */
+#ifdef HESIOD
+#include <hesiod.h>
+#endif
 #include <netdb.h>
 #include <nsswitch.h>
 #include <pthread.h>
@@ -56,24 +58,25 @@
 
 #define HESIOD_NAME_MAX	256
 
+#ifdef HESIOD
 struct dns_state {
 	long	counter;
 };
 static	void	dns_endstate(void *);
 NSS_TLS_HANDLING(dns);
-static	int	 dns_setpwent(void *, void *, va_list);
-static	int	 dns_passwd(void *, void *, va_list);
 
 static void
 dns_endstate(void *p)
 {
 	free(p);
 }
+#endif
 
 
 int
 __dns_setpwent(void *retval, void *mdata, va_list ap)
 {

>>> TRUNCATED FOR MAIL (1000 lines) <<<


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