systemtap - getsockname

======= script code start =======

%{
#include <stdlib.h>
#include <sys/socket.h>
%}

function sockname:string(sock:long)
%{
        struct sockaddr *addr = (struct sockaddr *) malloc (sizeof (struct sockaddr))
        if (addr != NULL) {
                size_t *addrlen = sizeof (struct sockaddr)

                ret = getsockname (sock, addr, addrlen)
                if (ret < 0) {
                        print ("error\n")
                }
        }
%}

probe syscall.connect.return {
        if ($return >= 0) {
                sockname ($return)
        }
}

======= script code end =======

======= run start =======

[root@rhel5-stap stps]# stap -g strace-connect.stp -c "curl www.google.com"
Pass 4: compilation failed.  Try again with another '--vp 0001' option.

[root@rhel5-stap stps]# stap -g --vp 0001 strace-connect.stp -c "curl www.google.com"
Pass 4: compiled C into "stap_b7800dfc97ca81afbd4921aaa452d856_6437.ko" in 740usr/190sys/932real ms.
Pass 4: compilation failed.  Try again with another '--vp 0001' option.

======= run end =======