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authorUlrich Drepper <drepper@redhat.com>2004-10-23 06:12:20 +0000
committerUlrich Drepper <drepper@redhat.com>2004-10-23 06:12:20 +0000
commit3bc99c11580a246a92cc179af6566da622a998ef (patch)
tree32f3807285c09ec4f3d20e10a497e1fdec9e2378 /resolv
parent3fd352b01bad515b552e8dc4db4049335398267e (diff)
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Remove compatibility code which is unused in glibc and probably bitrotten.
Diffstat (limited to 'resolv')
-rw-r--r--resolv/res_send.c200
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