Date: Fri, 13 Aug 2004 02:29:02 +0300 From: Giorgos Keramidas <keramida@ceid.upatras.gr> To: Nicolas B?rard Nault <nicobn@quebecbsd.org> Cc: freebsd-hackers@freebsd.org Subject: Re: inet_ntop( ) Message-ID: <20040812232902.GC7173@gothmog.gr> In-Reply-To: <4962.69.70.227.33.1092276363.squirrel@webmail.north-zone.net> References: <4962.69.70.227.33.1092276363.squirrel@webmail.north-zone.net>
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On 2004-08-12 02:06, Nicolas B?rard Nault <nicobn@quebecbsd.org> wrote:
>
> I wondered, why does inet_ntop() returns addresses in the format
> x:x:x:x:x:x:x.x.x.x ? This can be very annoying if that's not what you
> want. Is there another standard function, other than inet_ntop(), to do
> the same work ?
Can you show us a minimal program that exhibits this behavior? The
function seems to work as expected here. The only case where the format
you describe is used is with AF_INET6 addresses, which is not a bug AFAIK.
For instance, the following program:
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#define BUFLEN 100
int
main(void)
{
struct in_addr ia;
char buf[BUFLEN];
ia.s_addr = htonl(0x7f000001);
if (inet_ntop(AF_INET, &ia, buf, BUFLEN - 1) == NULL)
err(1, "inet_ntop");
printf("inet: %s\n", buf);
return EXIT_SUCCESS;
}
Prints the following output (note that the inet6 address output is probably
an invalid address but still gets printed in the usual format):
$ ./foo
inet: 127.0.0.1
$
Are you sure you're calling inet_ntop() as you should?
- Giorgos
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