Remove compatibility code which is unused in glibc and probably bitrotten.

1 files changed, 2 insertions, 198 deletions

diff --git a/resolv/res_send.c b/resolv/res_send.c
index 7773a2f..ca3e630 100644
--- a/resolv/res_send.c
+++ b/resolv/res_send.c
@@ -78,9 +78,7 @@ static const char rcsid[] = "$BINDId: res_send.c,v 8.38 2000/03/30 20:16:51 vixi
 #include <sys/time.h>
 #include <sys/socket.h>
 #include <sys/uio.h>
-#ifdef _LIBC
 #include <sys/poll.h>
-#endif
 
 #include <netinet/in.h>
 #include <arpa/nameser.h>
@@ -103,9 +101,6 @@ static const char rcsid[] = "$BINDId: res_send.c,v 8.38 2000/03/30 20:16:51 vixi
 #define MAXPACKET       65536
 #endif
 
-#ifndef _LIBC
-#include <isc/eventlib.h>
-#else
 
 /* From ev_streams.c.  */
 
@@ -170,7 +165,6 @@ evNowTime(struct timespec *res) {
 		TIMEVAL_TO_TIMESPEC (&now, res);
 }
 
-#endif
 
 /* Options.  Leave them on. */
 /* #undef DEBUG */
@@ -178,10 +172,6 @@ evNowTime(struct timespec *res) {
 
 #define EXT(res) ((res)->_u._ext)
 
-#ifndef _LIBC
-static const int highestFD = FD_SETSIZE - 1;
-#endif
-
 /* Forward. */
 
 static int		send_vc(res_state, const u_char *, int,
@@ -194,22 +184,11 @@ static void		Aerror(const res_state, FILE *, const char *, int,
 			       const struct sockaddr *);
 static void		Perror(const res_state, FILE *, const char *, int);
 #endif
-#ifdef _LIBC
 static int		sock_eq(struct sockaddr_in6 *, struct sockaddr_in6 *);
-#else
-static int		sock_eq(struct sockaddr_in *, struct sockaddr_in *);
-#endif
-#ifdef NEED_PSELECT
-static int		pselect(int, void *, void *, void *,
-				struct timespec *,
-				const sigset_t *);
-#endif
 
 /* Reachover. */
 
-#ifdef _LIBC
 static void convaddr4to6(struct sockaddr_in6 *sa);
-#endif
 void res_pquery(const res_state, const u_char *, int, FILE *);
 
 /* Public. */
@@ -224,15 +203,10 @@ void res_pquery(const res_state, const u_char *, int, FILE *);
  *	paul vixie, 29may94
  */
 int
-#ifdef _LIBC
 res_ourserver_p(const res_state statp, const struct sockaddr_in6 *inp)
-#else
-res_ourserver_p(const res_state statp, const struct sockaddr_in *inp)
-#endif
 {
 	int ns;
 
-#ifdef _LIBC
         if (inp->sin6_family == AF_INET) {
             struct sockaddr_in *in4p = (struct sockaddr_in *) inp;
 	    in_port_t port = in4p->sin_port;
@@ -260,18 +234,6 @@ res_ourserver_p(const res_state statp, const struct sockaddr_in *inp)
                     return (1);
             }
         }
-#else
-	struct sockaddr_in ina = *inp;
-	for (ns = 0; ns < statp->nscount; ns++) {
-		const struct sockaddr_in *srv = &statp->nsaddr_list[ns];
-
-		if (srv->sin_family == ina.sin_family &&
-		    srv->sin_port == ina.sin_port &&
-		    (srv->sin_addr.s_addr == INADDR_ANY ||
-		     srv->sin_addr.s_addr == ina.sin_addr.s_addr))
-			return (1);
-	}
-#endif
 	return (0);
 }
 
@@ -406,18 +368,12 @@ __libc_res_nsend(res_state statp, const u_char *buf, int buflen,
 		if (EXT(statp).nscount != statp->nscount)
 			needclose++;
 		else
-#ifdef _LIBC
 			for (ns = 0; ns < MAXNS; ns++) {
 				unsigned int map = EXT(statp).nsmap[ns];
 				if (map < MAXNS
 				    && !sock_eq((struct sockaddr_in6 *)
 						&statp->nsaddr_list[map],
 						EXT(statp).nsaddrs[ns]))
-#else
-			for (ns = 0; ns < statp->nscount; ns++) {
-				if (!sock_eq(&statp->nsaddr_list[ns],
-					     &EXT(statp).nsaddrs[ns]))
-#endif
 				{
 					needclose++;
 					break;
@@ -431,7 +387,6 @@ __libc_res_nsend(res_state statp, const u_char *buf, int buflen,
 	 * Maybe initialize our private copy of the ns_addr_list.
 	 */
 	if (EXT(statp).nsinit == 0) {
-#ifdef _LIBC
 		unsigned char map[MAXNS];
 
 		memset (map, MAXNS, sizeof (map));
@@ -471,13 +426,6 @@ __libc_res_nsend(res_state statp, const u_char *buf, int buflen,
 				n++;
 			}
 		}
-#else
-		for (ns = 0; ns < statp->nscount; ns++) {
-			EXT(statp).nsaddrs[ns] = statp->nsaddr_list[ns];
-			EXT(statp).nssocks[ns] = -1;
-		}
-		EXT(statp).nscount = ns;
-#endif
 		EXT(statp).nsinit = 1;
 	}
 
@@ -487,7 +435,6 @@ __libc_res_nsend(res_state statp, const u_char *buf, int buflen,
 	 */
 	if ((statp->options & RES_ROTATE) != 0 &&
 	    (statp->options & RES_BLAST) == 0) {
-#ifdef _LIBC
 		struct sockaddr_in6 *ina;
 		unsigned int map;
 
@@ -511,35 +458,18 @@ __libc_res_nsend(res_state statp, const u_char *buf, int buflen,
 			EXT(statp).nsaddrs[n] = ina;
 			EXT(statp).nsmap[n] = map;
 		}
-#else
-		struct sockaddr_in ina;
-		int lastns = statp->nscount - 1;
-
-		ina = statp->nsaddr_list[0];
-		for (ns = 0; ns < lastns; ns++)
-			statp->nsaddr_list[ns] = statp->nsaddr_list[ns + 1];
-		statp->nsaddr_list[lastns] = ina;
-#endif
 	}
 
 	/*
 	 * Send request, RETRY times, or until successful.
 	 */
 	for (try = 0; try < statp->retry; try++) {
-#ifdef _LIBC
 	    for (ns = 0; ns < MAXNS; ns++)
-#else
-	    for (ns = 0; ns < statp->nscount; ns++)
-#endif
 	    {
-#ifdef _LIBC
 		struct sockaddr_in6 *nsap = EXT(statp).nsaddrs[ns];
 
 		if (nsap == NULL)
 			goto next_ns;
-#else
-		struct sockaddr_in *nsap = &statp->nsaddr_list[ns];
-#endif
  same_ns:
 		if (statp->qhook) {
 			int done = 0, loops = 0;
@@ -547,16 +477,11 @@ __libc_res_nsend(res_state statp, const u_char *buf, int buflen,
 			do {
 				res_sendhookact act;
 
-#ifdef _LIBC
 				struct sockaddr_in *nsap4;
 				nsap4 = (struct sockaddr_in *) nsap;
 				act = (*statp->qhook)(&nsap4, &buf, &buflen,
 						      ans, anssiz, &resplen);
 				nsap = (struct sockaddr_in6 *) nsap4;
-#else
-				act = (*statp->qhook)(&nsap, &buf, &buflen,
-						      ans, anssiz, &resplen);
-#endif
 				switch (act) {
 				case res_goahead:
 					done = 1;
@@ -579,19 +504,13 @@ __libc_res_nsend(res_state statp, const u_char *buf, int buflen,
 			} while (!done);
 		}
 
-#ifdef _LIBC
-# ifdef DEBUG
+#ifdef DEBUG
 		char tmpbuf[40];
-# endif
+#endif
 		Dprint(statp->options & RES_DEBUG,
 		       (stdout, ";; Querying server (# %d) address = %s\n",
 			ns + 1, inet_ntop(AF_INET6, &nsap->sin6_addr,
 					  tmpbuf, sizeof (tmpbuf))));
-#else
-		Dprint(statp->options & RES_DEBUG,
-		       (stdout, ";; Querying server (# %d) address = %s\n",
-			ns + 1, inet_ntoa(nsap->sin_addr)));
-#endif
 
 		if (v_circuit) {
 			/* Use VC; at most one attempt per server. */
@@ -641,14 +560,9 @@ __libc_res_nsend(res_state statp, const u_char *buf, int buflen,
 			do {
 				res_sendhookact act;
 
-#ifdef _LIBC
 				act = (*statp->rhook)((struct sockaddr_in *)
 						      nsap, buf, buflen,
 						      ans, anssiz, &resplen);
-#else
-				act = (*statp->rhook)(nsap, buf, buflen,
-						      ans, anssiz, &resplen);
-#endif
 				switch (act) {
 				case res_goahead:
 				case res_done:
@@ -704,11 +618,7 @@ send_vc(res_state statp,
 	u_char *ans = *ansp;
 	int anssiz = *anssizp;
 	HEADER *anhp = (HEADER *) ans;
-#ifdef _LIBC
 	struct sockaddr_in6 *nsap = EXT(statp).nsaddrs[ns];
-#else
-	struct sockaddr_in *nsap = &statp->nsaddr_list[ns];
-#endif
 	int truncating, connreset, resplen, n;
 	struct iovec iov[2];
 	u_short len;
@@ -720,11 +630,7 @@ send_vc(res_state statp,
 
 	/* Are we still talking to whom we want to talk to? */
 	if (statp->_vcsock >= 0 && (statp->_flags & RES_F_VC) != 0) {
-#ifdef _LIBC
 		struct sockaddr_in6 peer;
-#else
-		struct sockaddr_in peer;
-#endif
 		int size = sizeof peer;
 
 		if (getpeername(statp->_vcsock,
@@ -739,15 +645,7 @@ send_vc(res_state statp,
 		if (statp->_vcsock >= 0)
 			res_nclose(statp);
 
-#ifdef _LIBC
 		statp->_vcsock = socket(nsap->sin6_family, SOCK_STREAM, 0);
-#else
-		statp->_vcsock = socket(PF_INET, SOCK_STREAM, 0);
-		if (statp->_vcsock > highestFD) {
-			res_nclose(statp);
-			__set_errno (ENOTSOCK);
-		}
-#endif
 		if (statp->_vcsock < 0) {
 			*terrno = errno;
 			Perror(statp, stderr, "socket(vc)", errno);
@@ -904,25 +802,15 @@ send_dg(res_state statp,
 	u_char *ans = *ansp;
 	int anssiz = *anssizp;
 	HEADER *anhp = (HEADER *) ans;
-#ifdef _LIBC
 	struct sockaddr_in6 *nsap = EXT(statp).nsaddrs[ns];
-#else
-	const struct sockaddr_in *nsap = &statp->nsaddr_list[ns];
-#endif
 	struct timespec now, timeout, finish;
-#ifdef _LIBC
 	struct pollfd pfd[1];
         int ptimeout;
 	struct sockaddr_in6 from;
 	static int socket_pf = 0;
-#else
-	fd_set dsmask;
-	struct sockaddr_in from;
-#endif
 	int fromlen, resplen, seconds, n, s;
 
 	if (EXT(statp).nssocks[ns] == -1) {
-#ifdef _LIBC
 		/* only try IPv6 if IPv6 NS and if not failed before */
 		if ((EXT(statp).nscount6 > 0) && (socket_pf != PF_INET)) {
 			EXT(statp).nssocks[ns] =
@@ -932,24 +820,14 @@ send_dg(res_state statp,
 		}
 		if (EXT(statp).nssocks[ns] < 0)
 			EXT(statp).nssocks[ns] = socket(PF_INET, SOCK_DGRAM, 0);
-#else
-		EXT(statp).nssocks[ns] = socket(PF_INET, SOCK_DGRAM, 0);
-		if (EXT(statp).nssocks[ns] > highestFD) {
-			res_nclose(statp);
-			__set_errno (ENOTSOCK);
-		}
-#endif
 		if (EXT(statp).nssocks[ns] < 0) {
 			*terrno = errno;
 			Perror(statp, stderr, "socket(dg)", errno);
 			return (-1);
 		}
-#ifndef CANNOT_CONNECT_DGRAM
-#ifdef _LIBC
 		/* If IPv6 socket and nsap is IPv4, make it IPv4-mapped */
 		if ((socket_pf == PF_INET6) && (nsap->sin6_family == AF_INET))
 			convaddr4to6(nsap);
-#endif
 		/*
 		 * On a 4.3BSD+ machine (client and server,
 		 * actually), sending to a nameserver datagram
@@ -968,7 +846,6 @@ send_dg(res_state statp,
 			res_nclose(statp);
 			return (0);
 		}
-#endif /* !CANNOT_CONNECT_DGRAM */
 		/* Make socket non-blocking.  */
 		int fl = __fcntl (EXT(statp).nssocks[ns], F_GETFL);
 		if  (fl != -1)
@@ -991,7 +868,6 @@ send_dg(res_state statp,
 	evAddTime(&finish, &now, &timeout);
 	int need_recompute = 0;
  resend:
-#ifdef _LIBC
         /* Convert struct timespec in milliseconds.  */
 	ptimeout = timeout.tv_sec * 1000 + timeout.tv_nsec / 1000000;
 
@@ -1002,16 +878,6 @@ send_dg(res_state statp,
 		n = __poll (pfd, 1, ptimeout);
 		need_recompute = 1;
 	}
-#else
-	FD_ZERO(&dsmask);
-	FD_SET(s, &dsmask);
-	struct timeval zerotime = { 0, 0 };
-	n = pselect(s + 1, NULL, &dsmask, NULL, &zerotime, NULL);
-	if (n == 0) {
-		n = pselect(s + 1, NULL, &dsmask, NULL, &timeout, NULL);
-		need_recompute = 1;
-	}
-#endif
 	if (n == 0) {
 		Dprint(statp->options & RES_DEBUG, (stdout,
 						    ";; timeout sending\n"));
@@ -1032,7 +898,6 @@ send_dg(res_state statp,
 		return (0);
 	}
 	__set_errno (0);
-#ifndef CANNOT_CONNECT_DGRAM
 	if (send(s, (char*)buf, buflen, 0) != buflen) {
 		if (errno == EINTR || errno == EAGAIN)
 			goto recompute_resend;
@@ -1040,23 +905,6 @@ send_dg(res_state statp,
 		res_nclose(statp);
 		return (0);
 	}
-#else /* !CANNOT_CONNECT_DGRAM */
-#ifdef _LIBC
-	/* If IPv6 socket and nsap is IPv4, make it IPv4-mapped */
-	if ((socket_pf == PF_INET6) && (nsap->sin6_family == AF_INET))
-		convaddr4to6(nsap);
-#endif
-	if (sendto(s, (char*)buf, buflen, 0,
-		   (struct sockaddr *)nsap, sizeof *nsap) != buflen)
-	{
-		if (errno == EINTR || errno == EAGAIN)
-			goto recompute_resend;
-		Aerror(statp, stderr, "sendto", errno,
-		       (struct sockaddr *) nsap);
-		res_nclose(statp);
-		return (0);
-	}
-#endif /* !CANNOT_CONNECT_DGRAM */
 
  wait:
 	if (need_recompute) {
@@ -1069,15 +917,11 @@ send_dg(res_state statp,
 		}
 		evSubTime(&timeout, &finish, &now);
 	}
-#ifdef _LIBC
         /* Convert struct timespec in milliseconds.  */
 	ptimeout = timeout.tv_sec * 1000 + timeout.tv_nsec / 1000000;
 
 	pfd[0].events = POLLIN;
 	n = __poll (pfd, 1, ptimeout);
-#else
-	n = pselect(s + 1, &dsmask, NULL, NULL, &timeout, NULL);
-#endif
 	if (n == 0) {
 		Dprint(statp->options & RES_DEBUG, (stdout,
 						    ";; timeout receiving\n"));
@@ -1092,11 +936,7 @@ send_dg(res_state statp,
 		goto err_return;
 	}
 	__set_errno (0);
-#ifdef _LIBC
 	fromlen = sizeof(struct sockaddr_in6);
-#else
-	fromlen = sizeof(struct sockaddr_in);
-#endif
 	if (anssiz < MAXPACKET
 	    && anscp
 	    && (ioctl (s, FIONREAD, &resplen) < 0
@@ -1239,7 +1079,6 @@ Perror(const res_state statp, FILE *file, const char *string, int error) {
 #endif
 
 static int
-#ifdef _LIBC
 sock_eq(struct sockaddr_in6 *a1, struct sockaddr_in6 *a2) {
 	if (a1->sin6_family == a2->sin6_family) {
 		if (a1->sin6_family == AF_INET)
@@ -1262,15 +1101,7 @@ sock_eq(struct sockaddr_in6 *a1, struct sockaddr_in6 *a2) {
 		(a1->sin6_addr.s6_addr32[3] ==
 		 ((struct sockaddr_in *)a2)->sin_addr.s_addr));
 }
-#else
-sock_eq(struct sockaddr_in *a1, struct sockaddr_in *a2) {
-	return ((a1->sin_family == a2->sin_family) &&
-		(a1->sin_port == a2->sin_port) &&
-		(a1->sin_addr.s_addr == a2->sin_addr.s_addr));
-}
-#endif
 
-#ifdef _LIBC
 /*
  * Converts IPv4 family, address and port to
  * IPv6 family, IPv4-mapped IPv6 address and port.
@@ -1289,30 +1120,3 @@ convaddr4to6(struct sockaddr_in6 *sa)
     sa->sin6_addr.s6_addr32[2] = htonl(0xFFFF);
     sa->sin6_addr.s6_addr32[3] = addr;
 }
-#endif
-
-#ifdef NEED_PSELECT
-/* XXX needs to move to the porting library. */
-static int
-pselect(int nfds, void *rfds, void *wfds, void *efds,
-	struct timespec *tsp, const sigset_t *sigmask)
-{
-	struct timeval tv, *tvp;
-	sigset_t sigs;
-	int n;
-
-	if (tsp) {
-		tvp = &tv;
-		tv = evTimeVal(*tsp);
-	} else
-		tvp = NULL;
-	if (sigmask)
-		sigprocmask(SIG_SETMASK, sigmask, &sigs);
-	n = select(nfds, rfds, wfds, efds, tvp);
-	if (sigmask)
-		sigprocmask(SIG_SETMASK, &sigs, NULL);
-	if (tsp)
-		TIMEVAL_TO_TIMESPEC (tv, *tsp);
-	return (n);
-}
-#endif