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SubjectPROBLEM: select() says closed socket readable
Date
For linux 2.4.2, select() indicates socket ready for read on a
socket that's never been connected. This is inconsistent with
other versions of Unix including Linux 2.2.

The following program demonstrates:

#include <stdio.h>
#include <unistd.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/socket.h>

main(int argc, char *argv[])
{
fd_set rfds;
int retval;
int sock;
struct timeval tv;
sock = socket(AF_INET, SOCK_STREAM, 0);
if (sock == -1) abort();
FD_ZERO(&rfds);
FD_SET(sock, &rfds);
tv.tv_sec = 0;
tv.tv_usec = 0;

retval = select(sock + 1, &rfds, NULL, NULL, &tv);
printf("retval from select(): %d\n", retval);

exit(0);
} /* end main program */
Output from "ver_linux" follows:

Linux costarica 2.4.2-2 #1 Sun Apr 8 20:41:30 EDT 2001 i686 unknown

Gnu C 2.96
Gnu make 3.79.1
binutils 2.10.91.0.2
util-linux 2.10r
modutils 2.4.2
e2fsprogs 1.19
reiserfsprogs 3.x.0f
pcmcia-cs 3.1.22
PPP 2.4.0
Linux C Library 2.2.2
Dynamic linker (ldd) 2.2.2
Procps 2.0.7
Net-tools 1.57
Console-tools 0.3.3
Sh-utils 2.0
Modules Loaded nfs lockd sunrpc nls_iso8859-1 ide-cd cdrom autofs 3c59x ipchains usb-uhci usbcore
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