Antonio Querubin wrote:
I've run into a problem where getsockname() doesn't work as expected.
Below is a test program where it fails under cygwin but runs on any
other Unix/Linux system. I searched the mail archives for any
limitations
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <stdio.h>
int main() {
struct sockaddr_in sa;
socklen_t len = sizeof sa;
int s, rc;
s = socket(AF_INET, SOCK_RAW, IPPROTO_ICMP);
printf("socket = %d\nlength = %d\n", s, len);
rc = getsockname(s, (struct sockaddr *) &sa, &len);
printf("getsockname rc = %d\nreturned length = %d\n", rc, len);
perror("getsockname");
return rc;
}
well,,, not 'any' other linux system...
$ ./getsockname
socket = -1
length = 16
getsockname rc = -1
returned length = 16
getsockname: Bad file descriptor
[EMAIL PROTECTED] /home/rthompso
$ uname -a
Linux wasteland 2.4.18-18.7.x #1 Wed Nov 13 20:29:30 EST 2002 i686 unknown
similar failed response on WinXP
$ ./getsockname
socket = 3
length = 16
getsockname rc = -1
returned length = 16
getsockname: Invalid argument
WS-XP-4960[08:38:46]: /home/rthompso>
perhaps a re-coding is in order...
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