* Versions.def: Add GLIBC_2.9 to libresolv.

	* include/resolv.h: Remove hidden proto declarations for __ns_*
	functions.  Add them for __dn_count_labels and __p_secstodate.
	* include/arpa/nameser.h: Add a number of hidden proto declarations.
	Define ns_msg_getflags macro here.
	* resolv/res_debug.c: Add hidden definition for __dn_count_labels
	and __p_secstodate.
	* resolv/Versions: Export functions from <arpa/nameser.h> from
	libresolv in version GLIBC_2.9.
	* resolv/ns_name.c: Integrate changes from bind 9.5.0.  Add necessary
	hidden definitions.
	* resolv/ns_netint.c: Likewise.
	* resolv/ns_parse.c: Likewise.
	* resolv/ns_print.c: Likewise.
	* resolv/ns_samedomain.c: Likewise.
	* resolv/ns_ttl.c: Likewise.
	* resolv/arpa/nameser_compat.h: Likewise.
	* resolv/arpa/nameser.h: Likewise.  Remove macros which redirect
	function calls.
	* resolv/nss_dns/dns-canon.c (_nss_dns_getcanonname_r): Use __ns_get16
	instead of ns_get16.
	* resolv/nss_dns/dns-host.c (getanswer_r): Use __ns_get16 and
	__ns_get32 instead of ns_get16 and ns_get32 respectively.
	(gaih_getanswer_slice): Likewise.
	* resolv/Makefile (libresolv-routines): Add ns_date.
	* resolv/ns_date.c: New file.

1 files changed, 35 insertions, 30 deletions

diff --git a/resolv/ns_samedomain.c b/resolv/ns_samedomain.c
index 1fb1c552d0..44b843a74b 100644
--- a/resolv/ns_samedomain.c
+++ b/resolv/ns_samedomain.c
@@ -1,4 +1,5 @@
 /*
+ * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
  * Copyright (c) 1995,1999 by Internet Software Consortium.
  *
  * Permission to use, copy, modify, and distribute this software for any
@@ -24,21 +25,22 @@ static const char rcsid[] = "$BINDId: ns_samedomain.c,v 8.9 1999/10/15 21:06:51
 #include <errno.h>
 #include <string.h>
 
-/*
- * int
- * ns_samedomain(a, b)
+/*%
  *	Check whether a name belongs to a domain.
+ *
  * Inputs:
- *	a - the domain whose ancestory is being verified
- *	b - the potential ancestor we're checking against
+ *\li	a - the domain whose ancestory is being verified
+ *\li	b - the potential ancestor we're checking against
+ *
  * Return:
- *	boolean - is a at or below b?
+ *\li	boolean - is a at or below b?
+ *
  * Notes:
- *	Trailing dots are first removed from name and domain.
+ *\li	Trailing dots are first removed from name and domain.
  *	Always compare complete subdomains, not only whether the
  *	domain name is the trailing string of the given name.
  *
- *	"host.foobar.top" lies in "foobar.top" and in "top" and in ""
+ *\li	"host.foobar.top" lies in "foobar.top" and in "top" and in ""
  *	but NOT in "bar.top"
  */
 
@@ -52,7 +54,7 @@ ns_samedomain(const char *a, const char *b) {
 	lb = strlen(b);
 
 	/* Ignore a trailing label separator (i.e. an unescaped dot) in 'a'. */
-	if (la != 0 && a[la - 1] == '.') {
+	if (la != 0U && a[la - 1] == '.') {
 		escaped = 0;
 		/* Note this loop doesn't get executed if la==1. */
 		for (i = la - 2; i >= 0; i--)
@@ -68,7 +70,7 @@ ns_samedomain(const char *a, const char *b) {
 	}
 
 	/* Ignore a trailing label separator (i.e. an unescaped dot) in 'b'. */
-	if (lb != 0 && b[lb - 1] == '.') {
+	if (lb != 0U && b[lb - 1] == '.') {
 		escaped = 0;
 		/* note this loop doesn't get executed if lb==1 */
 		for (i = lb - 2; i >= 0; i--)
@@ -84,7 +86,7 @@ ns_samedomain(const char *a, const char *b) {
 	}
 
 	/* lb == 0 means 'b' is the root domain, so 'a' must be in 'b'. */
-	if (lb == 0)
+	if (lb == 0U)
 		return (1);
 
 	/* 'b' longer than 'a' means 'a' can't be in 'b'. */
@@ -121,24 +123,23 @@ ns_samedomain(const char *a, const char *b) {
 	 */
 	escaped = 0;
 	for (i = diff - 2; i >= 0; i--)
-		if (a[i] == '\\')
+		if (a[i] == '\\') {
 			if (escaped)
 				escaped = 0;
 			else
 				escaped = 1;
-		else
+		} else
 			break;
 	if (escaped)
 		return (0);
-	  
+
 	/* Now compare aligned trailing substring. */
 	cp = a + diff;
 	return (strncasecmp(cp, b, lb) == 0);
 }
+libresolv_hidden_def (ns_samedomain)
 
-/*
- * int
- * ns_subdomain(a, b)
+/*%
  *	is "a" a subdomain of "b"?
  */
 int
@@ -146,30 +147,31 @@ ns_subdomain(const char *a, const char *b) {
 	return (ns_samename(a, b) != 1 && ns_samedomain(a, b));
 }
 
-/*
- * int
- * ns_makecanon(src, dst, dstsize)
+/*%
  *	make a canonical copy of domain name "src"
+ *
  * notes:
+ * \code
  *	foo -> foo.
  *	foo. -> foo.
  *	foo.. -> foo.
  *	foo\. -> foo\..
  *	foo\\. -> foo\\.
+ * \endcode
  */
 
 int
 ns_makecanon(const char *src, char *dst, size_t dstsize) {
 	size_t n = strlen(src);
 
-	if (n + sizeof "." > dstsize) {
+	if (n + sizeof "." > dstsize) {			/*%< Note: sizeof == 2 */
 		__set_errno (EMSGSIZE);
 		return (-1);
 	}
 	strcpy(dst, src);
-	while (n > 0 && dst[n - 1] == '.')		/* Ends in "." */
-		if (n > 1 && dst[n - 2] == '\\' &&	/* Ends in "\." */
-		    (n < 2 || dst[n - 3] != '\\'))	/* But not "\\." */
+	while (n >= 1U && dst[n - 1] == '.')		/*%< Ends in "." */
+		if (n >= 2U && dst[n - 2] == '\\' &&	/*%< Ends in "\." */
+		    (n < 3U || dst[n - 3] != '\\'))	/*%< But not "\\." */
 			break;
 		else
 			dst[--n] = '\0';
@@ -177,15 +179,15 @@ ns_makecanon(const char *src, char *dst, size_t dstsize) {
 	dst[n] = '\0';
 	return (0);
 }
+libresolv_hidden_def (ns_makecanon)
 
-/*
- * int
- * ns_samename(a, b)
+/*%
  *	determine whether domain name "a" is the same as domain name "b"
+ *
  * return:
- *	-1 on error
- *	0 if names differ
- *	1 if names are the same
+ *\li	-1 on error
+ *\li	0 if names differ
+ *\li	1 if names are the same
  */
 
 int
@@ -200,3 +202,6 @@ ns_samename(const char *a, const char *b) {
 	else
 		return (0);
 }
+libresolv_hidden_def (ns_samename)
+
+/*! \file */