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1998-06-25    Andi Kleen <ak@muc.de>

	* inet/rcmd.c (rcmd): Change to use __poll instead of select.
	* resolv/res_send.c (res_send): Likewise.
This commit is contained in:
Ulrich Drepper 1998-06-27 13:29:37 +00:00
parent 19c36e3337
commit cd68221f28
3 changed files with 25 additions and 29 deletions
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5
ChangeLog
View File

@ -1,3 +1,8 @@
1998-06-25 Andi Kleen <ak@muc.de>
* inet/rcmd.c (rcmd): Change to use __poll instead of select.
* resolv/res_send.c (res_send): Likewise.
1998-06-27 12:58 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/bsd/poll.c: Define __poll, make poll weak alias.

18
inet/rcmd.c
View File

@ -36,6 +36,7 @@ static char sccsid[] = "@(#)rcmd.c 8.3 (Berkeley) 3/26/94";
#endif /* LIBC_SCCS and not lint */
#include <sys/param.h>
#include <sys/poll.h>
#include <sys/socket.h>
#include <sys/stat.h>
@ -68,7 +69,7 @@ rcmd(ahost, rport, locuser, remuser, cmd, fd2p)
size_t hstbuflen;
char *tmphstbuf;
struct sockaddr_in sin, from;
fd_set reads;
struct pollfd pfd[2];
int32_t oldmask;
pid_t pid;
int s, lport, timo;
@ -94,6 +95,9 @@ rcmd(ahost, rport, locuser, remuser, cmd, fd2p)
tmphstbuf = __alloca (hstbuflen);
}
pfd[0].events = POLLIN;
pfd[1].events = POLLIN;
*ahost = hp->h_name;
oldmask = sigblock(sigmask(SIGURG));
for (timo = 1, lport = IPPORT_RESERVED - 1;;) {
@ -161,18 +165,16 @@ rcmd(ahost, rport, locuser, remuser, cmd, fd2p)
(void)close(s2);
goto bad;
}
FD_ZERO(&reads);
FD_SET(s, &reads);
FD_SET(s2, &reads);
pfd[0].fd = s;
pfd[1].fd = s2;
__set_errno (0);
if (select(1 + (s > s2 ? s : s2), &reads, 0, 0, 0) < 1 ||
!FD_ISSET(s2, &reads)) {
if (__poll (pfd, 2, -1) < 1 || (pfd[1].revents & POLLIN) == 0){
if (errno != 0)
(void)fprintf(stderr,
_("rcmd: select (setting up stderr): %m\n"));
_("rcmd: poll (setting up stderr): %m\n"));
else
(void)fprintf(stderr,
_("select: protocol failure in circuit setup\n"));
_("poll: protocol failure in circuit setup\n"));
(void)close(s2);
goto bad;
}

31
resolv/res_send.c
View File

@ -71,6 +71,7 @@ static char rcsid[] = "$Id$";
#include <sys/types.h>
#include <sys/param.h>
#include <sys/poll.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <sys/uio.h>
@ -98,16 +99,6 @@ static int s = -1; /* socket used for communications */
static int connected = 0; /* is the socket connected */
static int vc = 0; /* is the socket a virtual circuit? */
#ifndef FD_SET
/* XXX - should be in portability.h */
#define NFDBITS 32
#define FD_SETSIZE 32
#define FD_SET(n, p) ((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS)))
#define FD_CLR(n, p) ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS)))
#define FD_ISSET(n, p) ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS)))
#define FD_ZERO(p) bzero((char *)(p), sizeof(*(p)))
#endif
/* XXX - this should be done in portability.h */
#if (defined(BSD) && (BSD >= 199103)) || defined(linux)
# define CAN_RECONNECT 1
@ -519,7 +510,7 @@ read_len:
/*
* Use datagrams.
*/
struct timeval timeout;
int timeout;
fd_set dsmask;
struct sockaddr_in from;
socklen_t fromlen;
@ -619,26 +610,24 @@ read_len:
/*
* Wait for reply
*/
timeout.tv_sec = (_res.retrans << try);
timeout = (_res.retrans << try) * 1000;
if (try > 0)
timeout.tv_sec /= _res.nscount;
if ((long) timeout.tv_sec <= 0)
timeout.tv_sec = 1;
timeout.tv_usec = 0;
timeout /= _res.nscount;
if (timeout <= 0)
timeout = 1000;
wait:
if (s < 0 || s >= FD_SETSIZE) {
Perror(stderr, "s out-of-bounds", EMFILE);
res_close();
goto next_ns;
}
FD_ZERO(&dsmask);
FD_SET(s, &dsmask);
n = select(s+1, &dsmask, (fd_set *)NULL,
(fd_set *)NULL, &timeout);
pfd[0].fd = s;
pfd[0].events = POLLIN;
n = __poll(pfd, 1, timeout);
if (n < 0) {
if (errno == EINTR)
goto wait;
Perror(stderr, "select", errno);
Perror(stderr, "poll", errno);
res_close();
goto next_ns;
}