From d9ec370ac3a27fc9374c4182b7477ec0fc8473f4 Mon Sep 17 00:00:00 2001
From: Damien Miller <djm@mindrot.org>
Date: Thu, 15 May 2003 12:27:08 +1000
Subject:  - (djm) Import getrrsetbyname() function from OpenBSD libc (for DNS
 support)

---
 openbsd-compat/getrrsetbyname.c | 567 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 567 insertions(+)
 create mode 100644 openbsd-compat/getrrsetbyname.c

(limited to 'openbsd-compat/getrrsetbyname.c')

diff --git a/openbsd-compat/getrrsetbyname.c b/openbsd-compat/getrrsetbyname.c
new file mode 100644
index 000000000..03637c9ef
--- /dev/null
+++ b/openbsd-compat/getrrsetbyname.c
@@ -0,0 +1,567 @@
+/* $OpenBSD: getrrsetbyname.c,v 1.4 2001/08/16 18:16:43 ho Exp $ */
+
+/*
+ * Copyright (c) 2001 Jakob Schlyter. 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 ``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 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) 1999-2001 Internet Software Consortium.
+ *
+ * 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.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
+ * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+ * INTERNET SOFTWARE CONSORTIUM 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 "includes.h"
+
+#ifndef HAVE_GETRRSETBYNAME
+
+#include "getrrsetbyname.h"
+
+#define ANSWER_BUFFER_SIZE 1024*64
+
+struct dns_query {
+	char			*name;
+	u_int16_t		type;
+	u_int16_t		class;
+	struct dns_query	*next;
+};
+
+struct dns_rr {
+	char			*name;
+	u_int16_t		type;
+	u_int16_t		class;
+	u_int16_t		ttl;
+	u_int16_t		size;
+	void			*rdata;
+	struct dns_rr		*next;
+};
+
+struct dns_response {
+	HEADER			header;
+	struct dns_query	*query;
+	struct dns_rr		*answer;
+	struct dns_rr		*authority;
+	struct dns_rr		*additional;
+};
+
+static struct dns_response *parse_dns_response(const char *, int);
+static struct dns_query *parse_dns_qsection(const char *, int, const char **,
+    int);
+static struct dns_rr *parse_dns_rrsection(const char *, int, const char **,
+    int);
+
+static void free_dns_query(struct dns_query *);
+static void free_dns_rr(struct dns_rr *);
+static void free_dns_response(struct dns_response *);
+
+static int count_dns_rr(struct dns_rr *, u_int16_t, u_int16_t);
+
+/*
+ * Inline versions of get/put short/long.  Pointer is advanced.
+ *
+ * These macros demonstrate the property of C whereby it can be
+ * portable or it can be elegant but rarely both.
+ */
+
+#ifndef INT32SZ
+# define INT32SZ	4
+#endif
+#ifndef INT16SZ
+# define INT16SZ	2
+#endif
+
+#ifndef GETSHORT
+#define GETSHORT(s, cp) { \
+	register u_char *t_cp = (u_char *)(cp); \
+	(s) = ((u_int16_t)t_cp[0] << 8) \
+	    | ((u_int16_t)t_cp[1]) \
+	    ; \
+	(cp) += INT16SZ; \
+}
+#endif
+
+#ifndef GETLONG
+#define GETLONG(l, cp) { \
+	register u_char *t_cp = (u_char *)(cp); \
+	(l) = ((u_int32_t)t_cp[0] << 24) \
+	    | ((u_int32_t)t_cp[1] << 16) \
+	    | ((u_int32_t)t_cp[2] << 8) \
+	    | ((u_int32_t)t_cp[3]) \
+	    ; \
+	(cp) += INT32SZ; \
+}
+#endif
+
+/*
+ * Routines to insert/extract short/long's.
+ */
+
+static u_int16_t
+_getshort(msgp)
+	register const u_char *msgp;
+{
+	register u_int16_t u;
+
+	GETSHORT(u, msgp);
+	return (u);
+}
+
+static u_int32_t
+_getlong(msgp)
+	register const u_char *msgp;
+{
+	register u_int32_t u;
+
+	GETLONG(u, msgp);
+	return (u);
+}
+
+int
+getrrsetbyname(const char *hostname, unsigned int rdclass,
+    unsigned int rdtype, unsigned int flags,
+    struct rrsetinfo **res)
+{
+	int result;
+	struct rrsetinfo *rrset = NULL;
+	struct dns_response *response;
+	struct dns_rr *rr;
+	struct rdatainfo *rdata;
+	unsigned int length, index_ans, index_sig;
+	char answer[ANSWER_BUFFER_SIZE];
+
+	/* check for invalid class and type */
+	if (rdclass > 0xffff || rdtype > 0xffff) {
+		result = ERRSET_INVAL;
+		goto fail;
+	}
+
+	/* don't allow queries of class or type ANY */
+	if (rdclass == 0xff || rdtype == 0xff) {
+		result = ERRSET_INVAL;
+		goto fail;
+	}
+
+	/* don't allow flags yet, unimplemented */
+	if (flags) {
+		result = ERRSET_INVAL;
+		goto fail;
+	}
+
+	/* initialize resolver */
+	if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
+		result = ERRSET_FAIL;
+		goto fail;
+	}
+
+#ifdef DEBUG
+	_res.options |= RES_DEBUG;
+#endif /* DEBUG */
+
+#ifdef RES_USE_DNSSEC
+	/* turn on DNSSEC if EDNS0 is configured */
+	if (_res.options & RES_USE_EDNS0)
+		_res.options |= RES_USE_DNSSEC;
+#endif /* RES_USE_DNSEC */
+
+	/* make query */
+	length = res_query(hostname, rdclass, rdtype, answer, sizeof(answer));
+	if (length < 0) {
+		switch(h_errno) {
+		case HOST_NOT_FOUND:
+			result = ERRSET_NONAME;
+			goto fail;
+		case NO_DATA:
+			result = ERRSET_NODATA;
+			goto fail;
+		default:
+			result = ERRSET_FAIL;
+			goto fail;
+		}
+	}
+
+	/* parse result */
+	response = parse_dns_response(answer, length);
+	if (response == NULL) {
+		result = ERRSET_FAIL;
+		goto fail;
+	}
+
+	if (response->header.qdcount != 1) {
+		result = ERRSET_FAIL;
+		goto fail;
+	}
+
+	/* initialize rrset */
+	rrset = calloc(1, sizeof(struct rrsetinfo));
+	if (rrset == NULL) {
+		result = ERRSET_NOMEMORY;
+		goto fail;
+	}
+	rrset->rri_rdclass = response->query->class;
+	rrset->rri_rdtype = response->query->type;
+	rrset->rri_ttl = response->answer->ttl;
+	rrset->rri_nrdatas = response->header.ancount;
+
+	/* check for authenticated data */
+	if (response->header.ad == 1)
+		rrset->rri_flags |= RRSET_VALIDATED;
+
+	/* copy name from answer section */
+	length = strlen(response->answer->name);
+	rrset->rri_name = malloc(length + 1);
+	if (rrset->rri_name == NULL) {
+		result = ERRSET_NOMEMORY;
+		goto fail;
+	}
+	strlcpy(rrset->rri_name, response->answer->name, length + 1);
+
+	/* count answers */
+	rrset->rri_nrdatas = count_dns_rr(response->answer, rrset->rri_rdclass,
+	    rrset->rri_rdtype);
+	rrset->rri_nsigs = count_dns_rr(response->answer, rrset->rri_rdclass,
+	    T_SIG);
+
+	/* allocate memory for answers */
+	rrset->rri_rdatas = calloc(rrset->rri_nrdatas,
+	    sizeof(struct rdatainfo));
+	if (rrset->rri_rdatas == NULL) {
+		result = ERRSET_NOMEMORY;
+		goto fail;
+	}
+
+	/* allocate memory for signatures */
+	rrset->rri_sigs = calloc(rrset->rri_nsigs, sizeof(struct rdatainfo));
+	if (rrset->rri_sigs == NULL) {
+		result = ERRSET_NOMEMORY;
+		goto fail;
+	}
+
+	/* copy answers & signatures */
+	for (rr = response->answer, index_ans = 0, index_sig = 0;
+	    rr; rr = rr->next) {
+
+		rdata = NULL;
+
+		if (rr->class == rrset->rri_rdclass &&
+		    rr->type  == rrset->rri_rdtype)
+			rdata = &rrset->rri_rdatas[index_ans++];
+
+		if (rr->class == rrset->rri_rdclass &&
+		    rr->type  == T_SIG)
+			rdata = &rrset->rri_sigs[index_sig++];
+
+		if (rdata) {
+			rdata->rdi_length = rr->size;
+			rdata->rdi_data   = malloc(rr->size);
+
+			if (rdata->rdi_data == NULL) {
+				result = ERRSET_NOMEMORY;
+				goto fail;
+			}
+			memcpy(rdata->rdi_data, rr->rdata, rr->size);
+		}
+	}
+
+	*res = rrset;
+	return (ERRSET_SUCCESS);
+
+fail:
+	if (rrset != NULL)
+		freerrset(rrset);
+	return (result);
+}
+
+void
+freerrset(struct rrsetinfo *rrset)
+{
+	u_int16_t i;
+
+	if (rrset == NULL)
+		return;
+
+	if (rrset->rri_rdatas) {
+		for (i = 0; i < rrset->rri_nrdatas; i++) {
+			if (rrset->rri_rdatas[i].rdi_data == NULL)
+				break;
+			free(rrset->rri_rdatas[i].rdi_data);
+		}
+		free(rrset->rri_rdatas);
+	}
+
+	if (rrset->rri_sigs) {
+		for (i = 0; i < rrset->rri_nsigs; i++) {
+			if (rrset->rri_sigs[i].rdi_data == NULL)
+				break;
+			free(rrset->rri_sigs[i].rdi_data);
+		}
+		free(rrset->rri_sigs);
+	}
+
+	if (rrset->rri_name)
+		free(rrset->rri_name);
+	free(rrset);
+}
+
+/*
+ * DNS response parsing routines
+ */
+static struct dns_response *
+parse_dns_response(const char *answer, int size)
+{
+	struct dns_response *resp;
+	const char *cp;
+
+	/* allocate memory for the response */
+	resp = calloc(1, sizeof(*resp));
+	if (resp == NULL)
+		return (NULL);
+
+	/* initialize current pointer */
+	cp = answer;
+
+	/* copy header */
+	memcpy(&resp->header, cp, HFIXEDSZ);
+	cp += HFIXEDSZ;
+
+	/* fix header byte order */
+	resp->header.qdcount = ntohs(resp->header.qdcount);
+	resp->header.ancount = ntohs(resp->header.ancount);
+	resp->header.nscount = ntohs(resp->header.nscount);
+	resp->header.arcount = ntohs(resp->header.arcount);
+
+	/* there must be at least one query */
+	if (resp->header.qdcount < 1) {
+		free_dns_response(resp);
+		return (NULL);
+	}
+
+	/* parse query section */
+	resp->query = parse_dns_qsection(answer, size, &cp,
+	    resp->header.qdcount);
+	if (resp->header.qdcount && resp->query == NULL) {
+		free_dns_response(resp);
+		return (NULL);
+	}
+
+	/* parse answer section */
+	resp->answer = parse_dns_rrsection(answer, size, &cp,
+	    resp->header.ancount);
+	if (resp->header.ancount && resp->answer == NULL) {
+		free_dns_response(resp);
+		return (NULL);
+	}
+
+	/* parse authority section */
+	resp->authority = parse_dns_rrsection(answer, size, &cp,
+	    resp->header.nscount);
+	if (resp->header.nscount && resp->authority == NULL) {
+		free_dns_response(resp);
+		return (NULL);
+	}
+
+	/* parse additional section */
+	resp->additional = parse_dns_rrsection(answer, size, &cp,
+	    resp->header.arcount);
+	if (resp->header.arcount && resp->additional == NULL) {
+		free_dns_response(resp);
+		return (NULL);
+	}
+
+	return (resp);
+}
+
+static struct dns_query *
+parse_dns_qsection(const char *answer, int size, const char **cp, int count)
+{
+	struct dns_query *head, *curr, *prev;
+	int i, length;
+	char name[MAXDNAME];
+
+	for (i = 1, head = NULL, prev = NULL; i <= count; i++, prev = curr) {
+
+		/* allocate and initialize struct */
+		curr = calloc(1, sizeof(struct dns_query));
+		if (curr == NULL) {
+			free_dns_query(head);
+			return (NULL);
+		}
+		if (head == NULL)
+			head = curr;
+		if (prev != NULL)
+			prev->next = curr;
+
+		/* name */
+		length = dn_expand(answer, answer + size, *cp, name,
+		    sizeof(name));
+		if (length < 0) {
+			free_dns_query(head);
+			return (NULL);
+		}
+		curr->name = strdup(name);
+		if (curr->name == NULL) {
+			free_dns_query(head);
+			return (NULL);
+		}
+		*cp += length;
+
+		/* type */
+		curr->type = _getshort(*cp);
+		*cp += INT16SZ;
+
+		/* class */
+		curr->class = _getshort(*cp);
+		*cp += INT16SZ;
+	}
+
+	return (head);
+}
+
+static struct dns_rr *
+parse_dns_rrsection(const char *answer, int size, const char **cp, int count)
+{
+	struct dns_rr *head, *curr, *prev;
+	int i, length;
+	char name[MAXDNAME];
+
+	for (i = 1, head = NULL, prev = NULL; i <= count; i++, prev = curr) {
+
+		/* allocate and initialize struct */
+		curr = calloc(1, sizeof(struct dns_rr));
+		if (curr == NULL) {
+			free_dns_rr(head);
+			return (NULL);
+		}
+		if (head == NULL)
+			head = curr;
+		if (prev != NULL)
+			prev->next = curr;
+
+		/* name */
+		length = dn_expand(answer, answer + size, *cp, name,
+		    sizeof(name));
+		if (length < 0) {
+			free_dns_rr(head);
+			return (NULL);
+		}
+		curr->name = strdup(name);
+		if (curr->name == NULL) {
+			free_dns_rr(head);
+			return (NULL);
+		}
+		*cp += length;
+
+		/* type */
+		curr->type = _getshort(*cp);
+		*cp += INT16SZ;
+
+		/* class */
+		curr->class = _getshort(*cp);
+		*cp += INT16SZ;
+
+		/* ttl */
+		curr->ttl = _getlong(*cp);
+		*cp += INT32SZ;
+
+		/* rdata size */
+		curr->size = _getshort(*cp);
+		*cp += INT16SZ;
+
+		/* rdata itself */
+		curr->rdata = malloc(curr->size);
+		if (curr->rdata == NULL) {
+			free_dns_rr(head);
+			return (NULL);
+		}
+		memcpy(curr->rdata, *cp, curr->size);
+		*cp += curr->size;
+	}
+
+	return (head);
+}
+
+static void
+free_dns_query(struct dns_query *p)
+{
+	if (p == NULL)
+		return;
+
+	if (p->name)
+		free(p->name);
+	free_dns_query(p->next);
+	free(p);
+}
+
+static void
+free_dns_rr(struct dns_rr *p)
+{
+	if (p == NULL)
+		return;
+
+	if (p->name)
+		free(p->name);
+	if (p->rdata)
+		free(p->rdata);
+	free_dns_rr(p->next);
+	free(p);
+}
+
+static void
+free_dns_response(struct dns_response *p)
+{
+	if (p == NULL)
+		return;
+
+	free_dns_query(p->query);
+	free_dns_rr(p->answer);
+	free_dns_rr(p->authority);
+	free_dns_rr(p->additional);
+	free(p);
+}
+
+static int
+count_dns_rr(struct dns_rr *p, u_int16_t class, u_int16_t type)
+{
+	int n = 0;
+
+	while(p) {
+		if (p->class == class && p->type == type)
+			n++;
+		p = p->next;
+	}
+
+	return (n);
+}
+
+#endif /* HAVE_GETRRSETBYNAME */
-- 
cgit v1.2.3


From b10f1cd8787c4efa3a97fb6354e2e4fb2958f849 Mon Sep 17 00:00:00 2001
From: Damien Miller <djm@mindrot.org>
Date: Thu, 15 May 2003 20:55:27 +1000
Subject:  - (djm) Only build getrrsetbyname replacement when using --with-dns

---
 ChangeLog                       | 4 ++--
 openbsd-compat/getrrsetbyname.c | 4 ++--
 openbsd-compat/getrrsetbyname.h | 7 ++++---
 3 files changed, 8 insertions(+), 7 deletions(-)

(limited to 'openbsd-compat/getrrsetbyname.c')

diff --git a/ChangeLog b/ChangeLog
index bb1a2d9c5..bf783a367 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -48,7 +48,7 @@
  - (djm) Adapt README.dns for portable
  - (djm) Avoid uuencode.c warnings
  - (djm) Enable UsePAM when built --with-pam
-
+ - (djm) Only build getrrsetbyname replacement when using --with-dns
 20030514
  - (djm) Bug #117: Don't lie to PAM about username
  - (djm) RCSID sync w/ OpenBSD
@@ -1523,4 +1523,4 @@
      save auth method before monitor_reset_key_state(); bugzilla bug #284;
      ok provos@
 
-$Id: ChangeLog,v 1.2719 2003/05/15 04:17:28 djm Exp $
+$Id: ChangeLog,v 1.2720 2003/05/15 10:55:27 djm Exp $
diff --git a/openbsd-compat/getrrsetbyname.c b/openbsd-compat/getrrsetbyname.c
index 03637c9ef..1a4d9c14b 100644
--- a/openbsd-compat/getrrsetbyname.c
+++ b/openbsd-compat/getrrsetbyname.c
@@ -45,7 +45,7 @@
 
 #include "includes.h"
 
-#ifndef HAVE_GETRRSETBYNAME
+#if defined(DNS) && !defined(HAVE_GETRRSETBYNAME)
 
 #include "getrrsetbyname.h"
 
@@ -564,4 +564,4 @@ count_dns_rr(struct dns_rr *p, u_int16_t class, u_int16_t type)
 	return (n);
 }
 
-#endif /* HAVE_GETRRSETBYNAME */
+#endif /* defined(DNS) && !defined(HAVE_GETRRSETBYNAME) */
diff --git a/openbsd-compat/getrrsetbyname.h b/openbsd-compat/getrrsetbyname.h
index 048280192..9edaf0ae2 100644
--- a/openbsd-compat/getrrsetbyname.h
+++ b/openbsd-compat/getrrsetbyname.h
@@ -18,7 +18,7 @@
  * 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 BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * 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
@@ -48,7 +48,7 @@
 
 #include "config.h"
 
-#ifndef HAVE_GETRRSETBYNAME
+#if defined(DNS) && !defined(HAVE_GETRRSETBYNAME)
 
 #include <sys/types.h>
 #include <netinet/in.h>
@@ -95,5 +95,6 @@ struct rrsetinfo {
 int		getrrsetbyname(const char *, unsigned int, unsigned int, unsigned int, struct rrsetinfo **);
 void		freerrset(struct rrsetinfo *);
 
-#endif /* HAVE_GETRRSETBYNAME */
+#endif /* defined(DNS) && !defined(HAVE_GETRRSETBYNAME) */
+
 #endif /* _GETRRSETBYNAME_H */
-- 
cgit v1.2.3


From e323df6c4851b04386e747a009474f469fe97137 Mon Sep 17 00:00:00 2001
From: Damien Miller <djm@mindrot.org>
Date: Sun, 18 May 2003 22:24:09 +1000
Subject:  - (djm) Sync openbsd-compat/ with OpenBSD CVS head

---
 ChangeLog                       |  3 ++-
 openbsd-compat/getrrsetbyname.c | 37 +++++++++++++++++++++----------------
 openbsd-compat/strlcat.c        | 40 +++++++++++++---------------------------
 openbsd-compat/strlcpy.c        | 40 +++++++++++++---------------------------
 openbsd-compat/vis.c            | 36 ++++++++++++++++++++++--------------
 5 files changed, 71 insertions(+), 85 deletions(-)

(limited to 'openbsd-compat/getrrsetbyname.c')

diff --git a/ChangeLog b/ChangeLog
index c14c71d8b..b79be01f5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -16,6 +16,7 @@
      ok djm@
  - (djm) Remove IPv4 by default hack now that we can specify AF in config
  - (djm) Tidy and trim TODO
+ - (djm) Sync openbsd-compat/ with OpenBSD CVS head
 
 20030517
  - (bal) strcat -> strlcat on openbsd-compat/realpath.c (rev 1.8 OpenBSD)
@@ -1571,4 +1572,4 @@
      save auth method before monitor_reset_key_state(); bugzilla bug #284;
      ok provos@
 
-$Id: ChangeLog,v 1.2737 2003/05/18 11:45:26 djm Exp $
+$Id: ChangeLog,v 1.2738 2003/05/18 12:24:09 djm Exp $
diff --git a/openbsd-compat/getrrsetbyname.c b/openbsd-compat/getrrsetbyname.c
index 1a4d9c14b..3ba54e0da 100644
--- a/openbsd-compat/getrrsetbyname.c
+++ b/openbsd-compat/getrrsetbyname.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: getrrsetbyname.c,v 1.4 2001/08/16 18:16:43 ho Exp $ */
+/* $OpenBSD: getrrsetbyname.c,v 1.7 2003/03/07 07:34:14 itojun Exp $ */
 
 /*
  * Copyright (c) 2001 Jakob Schlyter. All rights reserved.
@@ -49,6 +49,8 @@
 
 #include "getrrsetbyname.h"
 
+/* #include "thread_private.h" */
+
 #define ANSWER_BUFFER_SIZE 1024*64
 
 struct dns_query {
@@ -76,10 +78,10 @@ struct dns_response {
 	struct dns_rr		*additional;
 };
 
-static struct dns_response *parse_dns_response(const char *, int);
-static struct dns_query *parse_dns_qsection(const char *, int, const char **,
-    int);
-static struct dns_rr *parse_dns_rrsection(const char *, int, const char **,
+static struct dns_response *parse_dns_response(const u_char *, int);
+static struct dns_query *parse_dns_qsection(const u_char *, int,
+    const u_char **, int);
+static struct dns_rr *parse_dns_rrsection(const u_char *, int, const u_char **,
     int);
 
 static void free_dns_query(struct dns_query *);
@@ -153,13 +155,15 @@ getrrsetbyname(const char *hostname, unsigned int rdclass,
     unsigned int rdtype, unsigned int flags,
     struct rrsetinfo **res)
 {
+	struct __res_state *_resp = &_res;
 	int result;
 	struct rrsetinfo *rrset = NULL;
 	struct dns_response *response;
 	struct dns_rr *rr;
 	struct rdatainfo *rdata;
-	unsigned int length, index_ans, index_sig;
-	char answer[ANSWER_BUFFER_SIZE];
+	int length;
+	unsigned int index_ans, index_sig;
+	u_char answer[ANSWER_BUFFER_SIZE];
 
 	/* check for invalid class and type */
 	if (rdclass > 0xffff || rdtype > 0xffff) {
@@ -180,23 +184,24 @@ getrrsetbyname(const char *hostname, unsigned int rdclass,
 	}
 
 	/* initialize resolver */
-	if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
+	if ((_resp->options & RES_INIT) == 0 && res_init() == -1) {
 		result = ERRSET_FAIL;
 		goto fail;
 	}
 
 #ifdef DEBUG
-	_res.options |= RES_DEBUG;
+	_resp->options |= RES_DEBUG;
 #endif /* DEBUG */
 
 #ifdef RES_USE_DNSSEC
 	/* turn on DNSSEC if EDNS0 is configured */
-	if (_res.options & RES_USE_EDNS0)
-		_res.options |= RES_USE_DNSSEC;
+	if (_resp->options & RES_USE_EDNS0)
+		_resp->options |= RES_USE_DNSSEC;
 #endif /* RES_USE_DNSEC */
 
 	/* make query */
-	length = res_query(hostname, rdclass, rdtype, answer, sizeof(answer));
+	length = res_query(hostname, (signed int) rdclass, (signed int) rdtype,
+	    answer, sizeof(answer));
 	if (length < 0) {
 		switch(h_errno) {
 		case HOST_NOT_FOUND:
@@ -338,10 +343,10 @@ freerrset(struct rrsetinfo *rrset)
  * DNS response parsing routines
  */
 static struct dns_response *
-parse_dns_response(const char *answer, int size)
+parse_dns_response(const u_char *answer, int size)
 {
 	struct dns_response *resp;
-	const char *cp;
+	const u_char *cp;
 
 	/* allocate memory for the response */
 	resp = calloc(1, sizeof(*resp));
@@ -403,7 +408,7 @@ parse_dns_response(const char *answer, int size)
 }
 
 static struct dns_query *
-parse_dns_qsection(const char *answer, int size, const char **cp, int count)
+parse_dns_qsection(const u_char *answer, int size, const u_char **cp, int count)
 {
 	struct dns_query *head, *curr, *prev;
 	int i, length;
@@ -449,7 +454,7 @@ parse_dns_qsection(const char *answer, int size, const char **cp, int count)
 }
 
 static struct dns_rr *
-parse_dns_rrsection(const char *answer, int size, const char **cp, int count)
+parse_dns_rrsection(const u_char *answer, int size, const u_char **cp, int count)
 {
 	struct dns_rr *head, *curr, *prev;
 	int i, length;
diff --git a/openbsd-compat/strlcat.c b/openbsd-compat/strlcat.c
index 3a9b5d1a7..8df757730 100644
--- a/openbsd-compat/strlcat.c
+++ b/openbsd-compat/strlcat.c
@@ -1,37 +1,26 @@
-/*	$OpenBSD: strlcat.c,v 1.8 2001/05/13 15:40:15 deraadt Exp $	*/
+/*	$OpenBSD: strlcat.c,v 1.10 2003/04/12 21:56:39 millert Exp $	*/
 
 /*
  * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
- * 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. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
+ * 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 ``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 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 TODD C. MILLER DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL TODD C. MILLER 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 "includes.h"
 #ifndef HAVE_STRLCAT
 
 #if defined(LIBC_SCCS) && !defined(lint)
-static char *rcsid = "$OpenBSD: strlcat.c,v 1.8 2001/05/13 15:40:15 deraadt Exp $";
+static char *rcsid = "$OpenBSD: strlcat.c,v 1.10 2003/04/12 21:56:39 millert Exp $";
 #endif /* LIBC_SCCS and not lint */
 
 #include <sys/types.h>
@@ -46,10 +35,7 @@ static char *rcsid = "$OpenBSD: strlcat.c,v 1.8 2001/05/13 15:40:15 deraadt Exp
  * If retval >= siz, truncation occurred.
  */
 size_t
-strlcat(dst, src, siz)
-	char *dst;
-	const char *src;
-	size_t siz;
+strlcat(char *dst, const char *src, size_t siz)
 {
 	register char *d = dst;
 	register const char *s = src;
diff --git a/openbsd-compat/strlcpy.c b/openbsd-compat/strlcpy.c
index 2f87eca44..fbb4f8ae2 100644
--- a/openbsd-compat/strlcpy.c
+++ b/openbsd-compat/strlcpy.c
@@ -1,37 +1,26 @@
-/*	$OpenBSD: strlcpy.c,v 1.5 2001/05/13 15:40:16 deraadt Exp $	*/
+/*	$OpenBSD: strlcpy.c,v 1.7 2003/04/12 21:56:39 millert Exp $	*/
 
 /*
  * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
- * 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. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
+ * 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 ``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 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 TODD C. MILLER DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL TODD C. MILLER 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 "includes.h"
 #ifndef HAVE_STRLCPY
 
 #if defined(LIBC_SCCS) && !defined(lint)
-static char *rcsid = "$OpenBSD: strlcpy.c,v 1.5 2001/05/13 15:40:16 deraadt Exp $";
+static char *rcsid = "$OpenBSD: strlcpy.c,v 1.7 2003/04/12 21:56:39 millert Exp $";
 #endif /* LIBC_SCCS and not lint */
 
 #include <sys/types.h>
@@ -44,10 +33,7 @@ static char *rcsid = "$OpenBSD: strlcpy.c,v 1.5 2001/05/13 15:40:16 deraadt Exp
  * Returns strlen(src); if retval >= siz, truncation occurred.
  */
 size_t
-strlcpy(dst, src, siz)
-	char *dst;
-	const char *src;
-	size_t siz;
+strlcpy(char *dst, const char *src, size_t siz)
 {
 	register char *d = dst;
 	register const char *s = src;
diff --git a/openbsd-compat/vis.c b/openbsd-compat/vis.c
index fc5741390..0d15886f0 100644
--- a/openbsd-compat/vis.c
+++ b/openbsd-compat/vis.c
@@ -34,7 +34,7 @@
 #if !defined(HAVE_STRNVIS)
 
 #if defined(LIBC_SCCS) && !defined(lint)
-static char rcsid[] = "$OpenBSD: vis.c,v 1.8 2002/02/19 19:39:36 millert Exp $";
+static char rcsid[] = "$OpenBSD: vis.c,v 1.11 2003/05/14 05:16:43 pjanzen Exp $";
 #endif /* LIBC_SCCS and not lint */
 
 #include <ctype.h>
@@ -47,8 +47,9 @@ static char rcsid[] = "$OpenBSD: vis.c,v 1.8 2002/02/19 19:39:36 millert Exp $";
 				((flag & VIS_SP) == 0 && (c) == ' ') ||	     \
 				((flag & VIS_TAB) == 0 && (c) == '\t') ||    \
 				((flag & VIS_NL) == 0 && (c) == '\n') ||     \
-				((flag & VIS_SAFE) &&			     \
-				((c) == '\b' || (c) == '\007' || (c) == '\r')))
+				((flag & VIS_SAFE) && ((c) == '\b' ||	     \
+				(c) == '\007' || (c) == '\r' ||		     \
+				isgraph((u_char)(c)))))
 
 /*
  * vis - visually encode characters
@@ -169,16 +170,20 @@ strvis(dst, src, flag)
 
 int
 strnvis(dst, src, siz, flag)
-	register char *dst;
-	register const char *src;
+	char *dst;
+	const char *src;
 	size_t siz;
 	int flag;
 {
-	register char c;
+	char c;
 	char *start, *end;
+	char tbuf[5];
+	int  i;
 
+	i = 0;
 	for (start = dst, end = start + siz - 1; (c = *src) && dst < end; ) {
 		if (isvisible(c)) {
+			i = 1;
 			*dst++ = c;
 			if (c == '\\' && (flag & VIS_NOSLASH) == 0) {
 				/* need space for the extra '\\' */
@@ -186,22 +191,25 @@ strnvis(dst, src, siz, flag)
 					*dst++ = '\\';
 				else {
 					dst--;
+					i = 2;
 					break;
 				}
 			}
 			src++;
 		} else {
-			/* vis(3) requires up to 4 chars */
-			if (dst + 3 < end)
-				dst = vis(dst, c, flag, *++src);
-			else
+			i = vis(tbuf, c, flag, *++src) - tbuf;
+			if (dst + i <= end) {
+				memcpy(dst, tbuf, i);
+				dst += i;
+			} else {
+				src--;
 				break;
+			}
 		}
 	}
-	*dst = '\0';
-	if (dst >= end) {
-		char tbuf[5];
-
+	if (siz > 0)
+		*dst = '\0';
+	if (dst + i > end) {
 		/* adjust return value for truncation */
 		while ((c = *src))
 			dst += vis(tbuf, c, flag, *++src) - tbuf;
-- 
cgit v1.2.3


From 0ac16a449218a88885f7b10bfb706c62e246496a Mon Sep 17 00:00:00 2001
From: Tim Rice <tim@multitalents.net>
Date: Mon, 8 Sep 2003 06:33:33 -0700
Subject: [configure.ac openbsd-compat/getrrsetbyname.c] wrap _getshort and
 _getlong in #ifndef

---
 ChangeLog                       | 6 +++++-
 configure.ac                    | 3 ++-
 openbsd-compat/getrrsetbyname.c | 4 ++++
 3 files changed, 11 insertions(+), 2 deletions(-)

(limited to 'openbsd-compat/getrrsetbyname.c')

diff --git a/ChangeLog b/ChangeLog
index 3c87cb229..9ab15b58c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+20030908
+ - (tim) [configure.ac openbsd-compat/getrrsetbyname.c] wrap _getshort and
+   _getlong in #ifndef
+
 20030907
  - (dtucker) [agent-ptrace.sh dynamic-forward.sh (all regress/)]
    Put "which" inside quotes.
@@ -1037,4 +1041,4 @@
  - Fix sshd BindAddress and -b options for systems using fake-getaddrinfo.
    Report from murple@murple.net, diagnosis from dtucker@zip.com.au
 
-$Id: ChangeLog,v 1.2969 2003/09/07 02:34:54 dtucker Exp $
+$Id: ChangeLog,v 1.2970 2003/09/08 13:33:33 tim Exp $
diff --git a/configure.ac b/configure.ac
index 9559bcb7e..58777a4ec 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-# $Id: configure.ac,v 1.145 2003/09/07 02:34:54 dtucker Exp $
+# $Id: configure.ac,v 1.146 2003/09/08 13:33:33 tim Exp $
 
 AC_INIT
 AC_CONFIG_SRCDIR([ssh.c])
@@ -1912,6 +1912,7 @@ AC_ARG_WITH(dns,
 					# Needed by our getrrsetbyname()
 					AC_SEARCH_LIBS(res_query, resolv)
 					AC_SEARCH_LIBS(dn_expand, resolv)
+					AC_CHECK_FUNCS(_getshort _getlong)
 				])
 		fi
 	]
diff --git a/openbsd-compat/getrrsetbyname.c b/openbsd-compat/getrrsetbyname.c
index 3ba54e0da..3f75590e2 100644
--- a/openbsd-compat/getrrsetbyname.c
+++ b/openbsd-compat/getrrsetbyname.c
@@ -130,6 +130,7 @@ static int count_dns_rr(struct dns_rr *, u_int16_t, u_int16_t);
  * Routines to insert/extract short/long's.
  */
 
+#ifndef HAVE__GETSHORT
 static u_int16_t
 _getshort(msgp)
 	register const u_char *msgp;
@@ -139,7 +140,9 @@ _getshort(msgp)
 	GETSHORT(u, msgp);
 	return (u);
 }
+#endif
 
+#ifndef HAVE__GETLONG
 static u_int32_t
 _getlong(msgp)
 	register const u_char *msgp;
@@ -149,6 +152,7 @@ _getlong(msgp)
 	GETLONG(u, msgp);
 	return (u);
 }
+#endif
 
 int
 getrrsetbyname(const char *hostname, unsigned int rdclass,
-- 
cgit v1.2.3


From b284e16c103bb87c444f372514fc2d1c6fb96033 Mon Sep 17 00:00:00 2001
From: Tim Rice <tim@multitalents.net>
Date: Mon, 8 Sep 2003 14:35:16 -0700
Subject: [configure.ac acconfig.h openbsd-compat/getrrsetbyname.c] test for
 HEADER.ad in arpa/nameser.h

---
 ChangeLog                       | 4 +++-
 acconfig.h                      | 5 ++++-
 configure.ac                    | 5 ++++-
 openbsd-compat/getrrsetbyname.c | 2 ++
 4 files changed, 13 insertions(+), 3 deletions(-)

(limited to 'openbsd-compat/getrrsetbyname.c')

diff --git a/ChangeLog b/ChangeLog
index 9ab15b58c..0343f2134 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,8 @@
 20030908
  - (tim) [configure.ac openbsd-compat/getrrsetbyname.c] wrap _getshort and
    _getlong in #ifndef
+ - (tim) [configure.ac acconfig.h openbsd-compat/getrrsetbyname.c] test for
+   HEADER.ad in arpa/nameser.h
 
 20030907
  - (dtucker) [agent-ptrace.sh dynamic-forward.sh (all regress/)]
@@ -1041,4 +1043,4 @@
  - Fix sshd BindAddress and -b options for systems using fake-getaddrinfo.
    Report from murple@murple.net, diagnosis from dtucker@zip.com.au
 
-$Id: ChangeLog,v 1.2970 2003/09/08 13:33:33 tim Exp $
+$Id: ChangeLog,v 1.2971 2003/09/08 21:35:16 tim Exp $
diff --git a/acconfig.h b/acconfig.h
index f6f5f27e0..ea8fcb0b4 100644
--- a/acconfig.h
+++ b/acconfig.h
@@ -1,4 +1,4 @@
-/* $Id: acconfig.h,v 1.164 2003/09/07 01:37:27 dtucker Exp $ */
+/* $Id: acconfig.h,v 1.165 2003/09/08 21:35:17 tim Exp $ */
 
 /*
  * Copyright (c) 1999-2003 Damien Miller.  All rights reserved.
@@ -418,6 +418,9 @@
 /* Define if getrrsetbyname() exists */
 #undef HAVE_GETRRSETBYNAME
 
+/* Define if HEADER.ad exists in arpa/nameser.h */
+#undef HAVE_HEADER_AD
+
 @BOTTOM@
 
 /* ******************* Shouldn't need to edit below this line ************** */
diff --git a/configure.ac b/configure.ac
index 58777a4ec..08bfdabcf 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-# $Id: configure.ac,v 1.146 2003/09/08 13:33:33 tim Exp $
+# $Id: configure.ac,v 1.147 2003/09/08 21:35:17 tim Exp $
 
 AC_INIT
 AC_CONFIG_SRCDIR([ssh.c])
@@ -1913,6 +1913,9 @@ AC_ARG_WITH(dns,
 					AC_SEARCH_LIBS(res_query, resolv)
 					AC_SEARCH_LIBS(dn_expand, resolv)
 					AC_CHECK_FUNCS(_getshort _getlong)
+					AC_CHECK_MEMBER(HEADER.ad,
+						[AC_DEFINE(HAVE_HEADER_AD)],,
+						[#include <arpa/nameser.h>])
 				])
 		fi
 	]
diff --git a/openbsd-compat/getrrsetbyname.c b/openbsd-compat/getrrsetbyname.c
index 3f75590e2..44fa2755b 100644
--- a/openbsd-compat/getrrsetbyname.c
+++ b/openbsd-compat/getrrsetbyname.c
@@ -243,9 +243,11 @@ getrrsetbyname(const char *hostname, unsigned int rdclass,
 	rrset->rri_ttl = response->answer->ttl;
 	rrset->rri_nrdatas = response->header.ancount;
 
+#ifdef HAVE_HEADER_AD
 	/* check for authenticated data */
 	if (response->header.ad == 1)
 		rrset->rri_flags |= RRSET_VALIDATED;
+#endif
 
 	/* copy name from answer section */
 	length = strlen(response->answer->name);
-- 
cgit v1.2.3