On Thu, 29 May 2008, Oliver Fromme wrote:
Hi,
> > However, I do share the concern that there's an ambiguity
> > in the syntax: "127" can be a jail ID as well as an IP
> > number (same as 0.0.0.127) or a hostname. Either the
>
> actually 127.0.0.0
I'm afraid I think it is 0.0.0.127.
127.0.0.0 would be 2130706432.
127.0.0.1 is 0x0000007f.
~/tmp> ./a.out 127
127.0.0.0
> > using 127.1 as a shotcut for 127.0.0.1.
>
> Yes. because that is 127.1.0.0 and not 127.0.0.1.
I'm pretty sure 127.1 is the same as 127.0.0.1. Last
time I used telnet 127.1 to test things it worked fine.
127.1.0.0 would be 127.65536.
re-reading the man page inet(3) it seems you would be right
for 127.0.0.1 == 127.1 -- just that our implementation of
inet_network() doesn't think you are... *sigh* I know this
function. It's from bind sources...
~/tmp> ./a.out 127.1
1.127.0.0
btw. the 3 digit version seems to be broken as well:
~/tmp> ./a.out 128.1.2
2.1.128.0
~/tmp> cat 127.c
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <err.h>
int
main(int argc, char *argv[])
{
in_addr_t ia;
char buf[16];
if (argc != 2)
errx(1, "usage: %s IP-address", argv[0]);
ia = inet_network(argv[1]);
if (ia == INADDR_NONE)
err(1, "inet_network");
if (inet_ntop(AF_INET, &ia, buf, sizeof(buf)) == NULL)
err(1, "inet_ntop");
printf("%s\n", buf);
return (0);
}
--
Bjoern A. Zeeb Stop bit received. Insert coin for new game.
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