Update.

1999-12-03  Andreas Jaeger  <aj@suse.de>

	* nss/getXXbyYY.c: Include <resolv.h>
	(FUNCTION_NAME): Use res_ninit instead of res_init.

	* nss/getXXbyYY_r.c [NEED__RES]: Include <resolv.h> for _res
	declaration and prototypes.
	Remove extra _res declaration.
	(INTERNAL): Use thread aware res_ninit function.

	* inet/gethstbyad_r.c: Include <resolv.h>.

	* resolv/res_data.c: Update from Bind 8.2.2-P5.  Moved res_init to
	res_libc.c.  Disabled unneeded functions.

	* resolv/res_libc.c: New file.

	* Versions.def: Add version GLIBC_2.2 for libpthread.
	Add versions GLIBC_2.1 and GLIBC_2.2 for libresolv.

	* include/resolv.h: Add internal interfaces.

	* resolv/Makefile (routines): Add new files.
	(libresolv-routines): Likewise.
	(distribute): Likewise.

	* resolv/gethnamaddr.c: Use thread safe resolver functions.
	* resolv/nss_dns/dns-host.c: Likewise.
	* resolv/nss_dns/dns-network.c: Likewise.

	* resolv/arpa/nameser.h: Update from Bind 8.2.2-P5.
	* resolv/nsap_addr.c: Likewise.
	* resolv/res_comp.c: Likewise.
	* resolv/res_debug.c: Likewise.
	* resolv/res_init.c: Likewise.
	* resolv/res_mkquery.c: Likewise.
	* resolv/res_query.c: Likewise.
	* resolv/res_send.c: Likewise.
	* resolv/resolv.h: Likewise.

	* resolv/Versions: Add __res_state and __res_ninit with version
	GLIBC_2.2 to libc.
	Add new interfaces with version GLIBC_2.2 to libresolv.

	* resolv/Banner: Update.

	* include/arpa/nameser_compat.h: New file.

	* resolv/ns_name.c: New file from Bind 8.2.2-P5.
	* 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/res_debug.h: Likewise.

	Some patches are based on work done by Adam D. Bradley
	<artdodge@cs.bu.edu>.

	* sysdeps/unix/sysv/linux/configure.in: Remove check for ldconfig,
	set always use_ldconfig instead.

2 files changed, 23 insertions, 10 deletions

diff --git a/resolv/nss_dns/dns-host.c b/resolv/nss_dns/dns-host.c
index 482cbd3..483e791 100644
--- a/resolv/nss_dns/dns-host.c
+++ b/resolv/nss_dns/dns-host.c
@@ -133,6 +133,9 @@ _nss_dns_gethostbyname2_r (const char *name, int af, struct hostent *result,
   int size, type, n;
   const char *cp;
 
+  if ((_res.options & RES_INIT) == 0 && __res_ninit (&_res) == -1)
+    return NSS_STATUS_UNAVAIL;
+
   switch (af) {
   case AF_INET:
     size = INADDRSZ;
@@ -159,7 +162,8 @@ _nss_dns_gethostbyname2_r (const char *name, int af, struct hostent *result,
   if (strchr (name, '.') == NULL && (cp = __hostalias (name)) != NULL)
     name = cp;
 
-  n = res_search (name, C_IN, type, host_buffer.buf, sizeof (host_buffer.buf));
+  n = res_nsearch (&_res, name, C_IN, type, host_buffer.buf,
+		   sizeof (host_buffer.buf));
   if (n < 0)
     {
       *h_errnop = h_errno;
@@ -211,6 +215,9 @@ _nss_dns_gethostbyaddr_r (const char *addr, size_t len, int af,
   size_t size;
   int n, status;
 
+  if ((_res.options & RES_INIT) == 0 && __res_ninit (&_res) == -1)
+    return NSS_STATUS_UNAVAIL;
+
   if (af == AF_INET6 && len == IN6ADDRSZ
       && (memcmp (uaddr, mapped, sizeof mapped) == 0
 	  || (memcmp (uaddr, tunnelled, sizeof tunnelled) == 0
@@ -259,8 +266,8 @@ _nss_dns_gethostbyaddr_r (const char *addr, size_t len, int af,
       /* Cannot happen.  */
     }
 
-  n = res_query (qbuf, C_IN, T_PTR, (u_char *)host_buffer.buf,
-		 sizeof host_buffer);
+  n = res_nquery (&_res, qbuf, C_IN, T_PTR, (u_char *)host_buffer.buf,
+		  sizeof host_buffer);
   if (n < 0)
     {
       *h_errnop = h_errno;
@@ -435,11 +442,11 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype,
 	  continue;
 	}
       cp += n;				/* name */
-      type = _getshort (cp);
+      type = ns_get16 (cp);
       cp += INT16SZ;			/* type */
-      class = _getshort (cp);
+      class = ns_get16 (cp);
       cp += INT16SZ + INT32SZ;		/* class, TTL */
-      n = _getshort (cp);
+      n = ns_get16 (cp);
       cp += INT16SZ;			/* len */
       if (class != C_IN)
 	{
diff --git a/resolv/nss_dns/dns-network.c b/resolv/nss_dns/dns-network.c
index f81341c..b194852 100644
--- a/resolv/nss_dns/dns-network.c
+++ b/resolv/nss_dns/dns-network.c
@@ -113,9 +113,12 @@ _nss_dns_getnetbyname_r (const char *name, struct netent *result,
   int anslen;
   char *qbuf;
 
+  if ((_res.options & RES_INIT) == 0 && __res_ninit (&_res) == -1)
+    return NSS_STATUS_UNAVAIL;
+
   qbuf = strdupa (name);
-  anslen = res_search (qbuf, C_IN, T_PTR, (u_char *) &net_buffer,
-		       sizeof (querybuf));
+  anslen = res_nsearch (&_res, qbuf, C_IN, T_PTR, (u_char *) &net_buffer,
+			sizeof (querybuf));
   if (anslen < 0)
     {
       /* Nothing found.  */
@@ -146,6 +149,9 @@ _nss_dns_getnetbyaddr_r (long net, int type, struct netent *result,
   if (type != AF_INET)
     return NSS_STATUS_UNAVAIL;
 
+  if ((_res.options & RES_INIT) == 0 && __res_ninit (&_res) == -1)
+    return NSS_STATUS_UNAVAIL;
+  
   net2 = (u_int32_t) net;
   for (cnt = 4; net2 != 0; net2 >>= 8)
     net_bytes[--cnt] = net2 & 0xff;
@@ -172,8 +178,8 @@ _nss_dns_getnetbyaddr_r (long net, int type, struct netent *result,
       break;
     }
 
-  anslen = res_query (qbuf, C_IN, T_PTR, (u_char *) &net_buffer,
-		      sizeof (querybuf));
+  anslen = res_nquery (&_res, qbuf, C_IN, T_PTR, (u_char *) &net_buffer,
+		       sizeof (querybuf));
   if (anslen < 0)
     {
       /* Nothing found.  */