Date: Tue, 27 Aug 2002 18:00:15 -0700 (PDT) From: Archie Cobbs <archie@packetdesign.com> To: freebsd-bugs@FreeBSD.org Subject: Re: bin/42100: libc_r: accept(2) can't handle descriptor being closed/shutdown Message-ID: <200208280100.g7S10Fmv032732@freefall.freebsd.org>
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The following reply was made to PR bin/42100; it has been noted by GNATS.
From: Archie Cobbs <archie@packetdesign.com>
To: freebsd-gnats-submit@FreeBSD.org
Cc:
Subject: Re: bin/42100: libc_r: accept(2) can't handle descriptor being
closed/shutdown
Date: Tue, 27 Aug 2002 17:51:37 -0700
Hmm.. guess I forgot to include the test program! Here it is.
============================== CUT HERE ========================
/* Set to "1" to abort on signal, or "0" for thread-based delayed abort */
#ifndef SIGNAL_TEST
#define SIGNAL_TEST 1
#endif
#ifdef __linux__
#define _XOPEN_SOURCE 600
#define _GNU_SOURCE 1
#define _BSD_SOURCE 1
#define _ISOC99_SOURCE 1
#endif
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <signal.h>
#include <errno.h>
#include <unistd.h>
#include <time.h>
#include <err.h>
#if SIGNAL_TEST
static void signal_handler(int sig);
#else
#include <pthread.h>
static void *thread_entry(void *arg);
static pthread_t tid;
#endif
static int sock;
int
main(int ac, char **av)
{
struct sockaddr_in sin;
socklen_t slen;
/* Create socket */
if ((sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1)
err(1, "socket");
memset(&sin, 0, sizeof(sin));
#ifndef __linux__
sin.sin_len = sizeof(sin);
#endif
sin.sin_family = AF_INET;
if (bind(sock, (struct sockaddr *)&sin, sizeof(sin)) == -1)
err(1, "socket");
slen = sizeof(sin);
if (listen(sock, 10) == -1)
err(1, "listen");
#if SIGNAL_TEST
/* Register signal handler */
signal(SIGINT, signal_handler);
signal(SIGTERM, signal_handler);
#else
/* Spawn thread */
if ((errno = pthread_create(&tid, NULL, thread_entry, NULL)) != 0)
err(1, "pthread_create");
#endif
/* Listen for connections on socket */
printf("main: waiting for connection...\n");
if (accept(sock, (struct sockaddr *)&sin, &slen) == -1)
err(1, "main: accept");
printf("main: got connection?\n");
return (0);
}
#if SIGNAL_TEST
static void
signal_handler(int sig)
#else
static void *
thread_entry(void *arg)
#endif
{
#if SIGNAL_TEST
printf("%s: rec'd signal %d...\n", __FUNCTION__, sig);
#else
printf("%s: sleeping 2 seconds...\n", __FUNCTION__);
sleep(2);
#endif
srandom(getpid() ^ time(NULL));
if ((random() & 0x00400000) != 0) {
printf("%s: shutdown()'ing socket...\n", __FUNCTION__);
if (shutdown(sock, SHUT_RDWR) == -1)
err(1, "thread: shutdown");
} else {
printf("%s: close()'ing socket...\n", __FUNCTION__);
if (close(sock) == -1)
err(1, "thread: shutdown");
}
#if !SIGNAL_TEST
return (NULL);
#endif
}
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