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Code Issues Releases Activity

Ignore EINPROGRESS error on TCP connect(), and pick up the result of the

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non-blocking connect later using select().  This case didn't trigger on
my UP test box, but did on Peter's SMP test box.

Spotted by:	peter
This commit is contained in:
Robert Watson 2007-01-12 22:17:31 +00:00
parent b0c521e29c
commit 0b71cfd780
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=165984
1 changed files with 23 additions and 4 deletions
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27
tools/regression/sockets/zerosend/zerosend.c
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@ -26,6 +26,7 @@
* $FreeBSD$
*/
#include <sys/select.h>
#include <sys/socket.h>
#include <sys/stat.h>
@ -34,6 +35,7 @@
#include <arpa/inet.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <stdio.h>
@ -91,7 +93,7 @@ setup_udp(const char *test, int *fdp)
inet_ntoa(sin.sin_addr), PORT1);
sin.sin_port = htons(PORT2);
if (connect(sock1, (struct sockaddr *)&sin, sizeof(sin)) < 0)
err(-1, "%s: setup_udp: bind(%s, %d)", test,
err(-1, "%s: setup_udp: connect(%s, %d)", test,
inet_ntoa(sin.sin_addr), PORT2);
sock2 = socket(PF_INET, SOCK_DGRAM, 0);
@ -102,7 +104,7 @@ setup_udp(const char *test, int *fdp)
inet_ntoa(sin.sin_addr), PORT2);
sin.sin_port = htons(PORT1);
if (connect(sock2, (struct sockaddr *)&sin, sizeof(sin)) < 0)
err(-1, "%s: setup_udp: bind(%s, %d)", test,
err(-1, "%s: setup_udp: connect(%s, %d)", test,
inet_ntoa(sin.sin_addr), PORT1);
fdp[0] = sock1;
@ -112,8 +114,10 @@ setup_udp(const char *test, int *fdp)
static void
setup_tcp(const char *test, int *fdp)
{
fd_set writefds, exceptfds;
struct sockaddr_in sin;
int sock1, sock2, sock3;
int ret, sock1, sock2, sock3;
struct timeval tv;
bzero(&sin, sizeof(sin));
sin.sin_len = sizeof(sin);
@ -142,7 +146,8 @@ setup_tcp(const char *test, int *fdp)
err(-1, "%s: setup_tcp: socket", test);
if (fcntl(sock2, F_SETFL, O_NONBLOCK) < 0)
err(-1, "%s: setup_tcp: fcntl(O_NONBLOCK)", test);
if (connect(sock2, (struct sockaddr *)&sin, sizeof(sin)) < 0)
if (connect(sock2, (struct sockaddr *)&sin, sizeof(sin)) < 0 &&
errno != EINPROGRESS)
err(-1, "%s: setup_tcp: connect(%s, %d)", test,
inet_ntoa(sin.sin_addr), PORT1);
@ -158,6 +163,20 @@ setup_tcp(const char *test, int *fdp)
if (sleep(1) < 0)
err(-1, "%s: sleep(1)", test);
FD_ZERO(&writefds);
FD_SET(sock2, &writefds);
FD_ZERO(&exceptfds);
FD_SET(sock2, &exceptfds);
tv.tv_sec = 1;
tv.tv_usec = 0;
ret = select(sock2 + 1, NULL, &writefds, &exceptfds, &tv);
if (ret < 0)
err(-1, "%s: setup_tcp: select", test);
if (FD_ISSET(sock2, &exceptfds))
errx(-1, "%s: setup_tcp: select: exception", test);
if (!FD_ISSET(sock2, &writefds))
errx(-1, "%s: setup_tcp: select: not writable", test);
close(sock1);
fdp[0] = sock2;
fdp[1] = sock3;