Date: Sun, 25 Jun 2000 10:28:03 -0700 (PDT) From: jan.grant@bristol.ac.uk To: freebsd-gnats-submit@FreeBSD.org Subject: kern/19505: bind(2) erroneously complains EADDRNOTAVAIL Message-ID: <20000625172803.A7B0937B582@hub.freebsd.org>
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>Number: 19505
>Category: kern
>Synopsis: bind(2) erroneously complains EADDRNOTAVAIL
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sun Jun 25 10:30:00 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator: jan grant
>Release: 4.0-stable
>Organization:
university of bristol
>Environment:
FreeBSD tribble.ilrt.bris.ac.uk 4.0-STABLE FreeBSD 4.0-STABLE #0: Wed Jun 7 09:34:59 BS
T 2000 cmjg@tribble.ilrt.bris.ac.uk:/usr/src/sys/compile/JAN i386
>Description:
I've got a trivial little ip4-only program which I want to listen on
127.0.0.1.5999 only, as opposed to *.5999 (tcp socket)
It fails at the call to bind: complaining that EADDRNOTAVAIL. The same
program (modulo sin_len - missing on that system) works on Solaris,
which leads me to believe the problem isn't with my source, but with bind.
Running the program using INADDR_ANY works correctly.
I've marked this as high-priority since there are some programs (named)
that need this functionality.
>How-To-Repeat:
Trivial little program repeats the bug: compile with gcc -o test test.cc.
Email me for source.
#include <stdio.h>
#include <sys/types.h>
#include <netinet/in.h> /* for struct sockaddr_in */
#include <netdb.h> /* For getprotobyname */
#include <sys/param.h> /* For the ntohs, etc. */
#include <arpa/inet.h> /* For inet_ntoa */
#include <netdb.h> // gethostbyname
#include <unistd.h>
#include <unistd.h>
#include <sys/socket.h>
#include <errno.h> //errno, EINTR
unsigned short sport = 5999;
int main(int argc, char *argv[]) {
struct protoent * pep = getprotobyname("tcp");
if (!pep) {
perror("cannot getprotobyname tcp");
return 1;
}
int sd = socket(PF_INET, SOCK_STREAM, pep->p_proto);
if (sd == -1) {
perror("socket");
return 1;
}
struct hostent *he = gethostbyname("localhost");
if (!he) {
perror("gethostbyname localhost");
return 2;
}
struct sockaddr_in addr;
addr.sin_len = sizeof(addr);
addr.sin_family = AF_INET;
addr.sin_port = htons(sport);
memcpy(&addr.sin_addr.s_addr, he->h_addr_list[0], sizeof(addr.sin_addr.s_addr));
//addr.sin_addr.s_addr = htonl(INADDR_ANY); // this works!
printf("%lx\n", addr.sin_addr.s_addr); // quick check
int one = 1;
if (setsockopt(sd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one))) {
perror("setsockopt");
return 2;
}
if (bind(sd, (const struct sockaddr *) &addr, sizeof addr)) {
perror("bind");
close(sd);
return 3;
}
// ...and listen...
if (listen(sd, 5)) {
perror("listen");
return 4;
}
close(sd);
return 0;
}
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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