Date: Fri, 5 Jun 1998 10:31:44 -0400 (EDT) From: "Ron G. Minnich" <rminnich@Sarnoff.COM> To: hackers@FreeBSD.ORG Subject: ECONNREFUSED on a READ? Message-ID: <Pine.SUN.3.91.980605102331.5206A-100000@terra>
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5606 telnet CALL socket(0x2,0x2,0)
5606 telnet RET socket 3
5606 telnet CALL connect(0x3,0x200ac010,0x10)
5606 telnet RET connect 0
5606 telnet CALL sendto(0x3,0xefbfcfd8,0x16,0,0,0)
5606 telnet GIO fd 3 wrote 22 bytes
"\^B\M-Z\^A\0\0\^A\0\0\0\0\0\0\^Dc126\0\0\^A\0\^A"
5606 telnet RET sendto 22/0x16
5606 telnet CALL poll(0xefbfcd88,0x1,0x2710)
5606 telnet RET poll 1
5606 telnet CALL recvfrom(0x3,0xefbfd884,0x400,0,0xefbfce10,0xefbfcd7c)
5606 telnet RET recvfrom -1 errno 61 Connection refused
5606 telnet CALL close(0x3)
So we have a socket, make a connection on it, sendto on it, then do a
recvfrom on it and get an error.
I'm seeing this on a
FreeBSD 3.0-971110-SNAP #0: Sat Jan 6 23:54:11 EST 1996
root@c064:/usr/src/sys/compile/SMP-CLUSTER
On almost any program.
Further tracing of programs I have shows that a remote client is
successfully making a connect(), and the server here is successfully
doing an accept(), but the first read() from the socket gets
ECONNREFUSED. ??
Before anyone argues that you can't use recvfrom on a connected socket:
Recvfrom() and recvmsg() are used to receive messages from a socket, and
may be used to receive data on a socket whether or not it is connection-
oriented.
In fact recv is redundant, as per the man page.
This code has been working for 2.5 years on various versions of linux and
freebsd. (it's the ZOUNDS dsm).
Any hints would be most helpful.
ron
Ron Minnich |Java: an operating-system-independent,
rminnich@sarnoff.com |architecture-independent programming language
(609)-734-3120 |for Windows/95 and Windows/NT on the Pentium
ftp://ftp.sarnoff.com/pub/mnfs/www/docs/cluster.html
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