socket.xs

UNIX下perl实现代码

#endif
	if (strEQ(name, "PF_LAT"))
#ifdef PF_LAT
	    return PF_LAT;
#else
	    goto not_there;
#endif
	if (strEQ(name, "PF_MAX"))
#ifdef PF_MAX
	    return PF_MAX;
#else
	    goto not_there;
#endif
	if (strEQ(name, "PF_NBS"))
#ifdef PF_NBS
	    return PF_NBS;
#else
	    goto not_there;
#endif
	if (strEQ(name, "PF_NIT"))
#ifdef PF_NIT
	    return PF_NIT;
#else
	    goto not_there;
#endif
	if (strEQ(name, "PF_NS"))
#ifdef PF_NS
	    return PF_NS;
#else
	    goto not_there;
#endif
	if (strEQ(name, "PF_OSI"))
#ifdef PF_OSI
	    return PF_OSI;
#else
	    goto not_there;
#endif
	if (strEQ(name, "PF_OSINET"))
#ifdef PF_OSINET
	    return PF_OSINET;
#else
	    goto not_there;
#endif
	if (strEQ(name, "PF_PUP"))
#ifdef PF_PUP
	    return PF_PUP;
#else
	    goto not_there;
#endif
	if (strEQ(name, "PF_SNA"))
#ifdef PF_SNA
	    return PF_SNA;
#else
	    goto not_there;
#endif
	if (strEQ(name, "PF_UNIX"))
#ifdef PF_UNIX
	    return PF_UNIX;
#else
	    goto not_there;
#endif
	if (strEQ(name, "PF_UNSPEC"))
#ifdef PF_UNSPEC
	    return PF_UNSPEC;
#else
	    goto not_there;
#endif
	if (strEQ(name, "PF_X25"))
#ifdef PF_X25
	    return PF_X25;
#else
	    goto not_there;
#endif
	break;
    case 'Q':
	break;
    case 'R':
	break;
    case 'S':
	if (strEQ(name, "SCM_CONNECT"))
#ifdef SCM_CONNECT
	    return SCM_CONNECT;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SCM_CREDENTIALS"))
#ifdef SCM_CREDENTIALS
	    return SCM_CREDENTIALS;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SCM_CREDS"))
#ifdef SCM_CREDS
	    return SCM_CREDS;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SCM_RIGHTS"))
#if defined(SCM_RIGHTS) || defined(HAS_SCM_RIGHTS) /* might be an enum */
	    return SCM_RIGHTS;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SCM_TIMESTAMP"))
#ifdef SCM_TIMESTAMP
	    return SCM_TIMESTAMP;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SHUT_RD"))
#ifdef SHUT_RD
	    return SHUT_RD;
#else
	    return 0;
#endif
	if (strEQ(name, "SHUT_RDWR"))
#ifdef SHUT_RDWR
	    return SHUT_RDWR;
#else
	    return 2;
#endif
	if (strEQ(name, "SHUT_WR"))
#ifdef SHUT_WR
	    return SHUT_WR;
#else
	    return 1;
#endif
	if (strEQ(name, "SOCK_DGRAM"))
#ifdef SOCK_DGRAM
	    return SOCK_DGRAM;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SOCK_RAW"))
#ifdef SOCK_RAW
	    return SOCK_RAW;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SOCK_RDM"))
#ifdef SOCK_RDM
	    return SOCK_RDM;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SOCK_SEQPACKET"))
#ifdef SOCK_SEQPACKET
	    return SOCK_SEQPACKET;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SOCK_STREAM"))
#ifdef SOCK_STREAM
	    return SOCK_STREAM;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SOL_SOCKET"))
#ifdef SOL_SOCKET
	    return SOL_SOCKET;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SOMAXCONN"))
#ifdef SOMAXCONN
	    return SOMAXCONN;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SO_ACCEPTCONN"))
#ifdef SO_ACCEPTCONN
	    return SO_ACCEPTCONN;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SO_BROADCAST"))
#ifdef SO_BROADCAST
	    return SO_BROADCAST;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SO_DEBUG"))
#ifdef SO_DEBUG
	    return SO_DEBUG;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SO_DONTLINGER"))
#ifdef SO_DONTLINGER
	    return SO_DONTLINGER;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SO_DONTROUTE"))
#ifdef SO_DONTROUTE
	    return SO_DONTROUTE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SO_ERROR"))
#ifdef SO_ERROR
	    return SO_ERROR;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SO_KEEPALIVE"))
#ifdef SO_KEEPALIVE
	    return SO_KEEPALIVE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SO_LINGER"))
#ifdef SO_LINGER
	    return SO_LINGER;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SO_OOBINLINE"))
#ifdef SO_OOBINLINE
	    return SO_OOBINLINE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SO_RCVBUF"))
#ifdef SO_RCVBUF
	    return SO_RCVBUF;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SO_RCVLOWAT"))
#ifdef SO_RCVLOWAT
	    return SO_RCVLOWAT;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SO_RCVTIMEO"))
#ifdef SO_RCVTIMEO
	    return SO_RCVTIMEO;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SO_REUSEADDR"))
#ifdef SO_REUSEADDR
	    return SO_REUSEADDR;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SO_REUSEPORT"))
#ifdef SO_REUSEPORT
	    return SO_REUSEPORT;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SO_SNDBUF"))
#ifdef SO_SNDBUF
	    return SO_SNDBUF;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SO_SNDLOWAT"))
#ifdef SO_SNDLOWAT
	    return SO_SNDLOWAT;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SO_SNDTIMEO"))
#ifdef SO_SNDTIMEO
	    return SO_SNDTIMEO;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SO_TYPE"))
#ifdef SO_TYPE
	    return SO_TYPE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "SO_USELOOPBACK"))
#ifdef SO_USELOOPBACK
	    return SO_USELOOPBACK;
#else
	    goto not_there;
#endif
	break;
    case 'T':
	if (strEQ(name, "TCP_KEEPALIVE"))
#ifdef TCP_KEEPALIVE
	    return TCP_KEEPALIVE;
#else
	    goto not_there;
#endif
	if (strEQ(name, "TCP_MAXRT"))
#ifdef TCP_MAXRT
	    return TCP_MAXRT;
#else
	    goto not_there;
#endif
	if (strEQ(name, "TCP_MAXSEG"))
#ifdef TCP_MAXSEG
	    return TCP_MAXSEG;
#else
	    goto not_there;
#endif
	if (strEQ(name, "TCP_NODELAY"))
#ifdef TCP_NODELAY
	    return TCP_NODELAY;
#else
	    goto not_there;
#endif
	if (strEQ(name, "TCP_STDURG"))
#ifdef TCP_STDURG
	    return TCP_STDURG;
#else
	    goto not_there;
#endif
	break;
    case 'U':
	if (strEQ(name, "UIO_MAXIOV"))
#ifdef UIO_MAXIOV
	    return UIO_MAXIOV;
#else
	    goto not_there;
#endif
	break;
    case 'V':
	break;
    case 'W':
	break;
    case 'X':
	break;
    case 'Y':
	break;
    case 'Z':
	break;
    }
    errno = EINVAL;
    return 0;

not_there:
    errno = ENOENT;
    return 0;
}


MODULE = Socket		PACKAGE = Socket

double
constant(name,arg)
	char *		name
	int		arg


void
inet_aton(host)
	char *	host
	CODE:
	{
	struct in_addr ip_address;
	struct hostent * phe;
	int ok = inet_aton(host, &ip_address);

	if (!ok && (phe = gethostbyname(host))) {
		Copy( phe->h_addr, &ip_address, phe->h_length, char );
		ok = 1;
	}

	ST(0) = sv_newmortal();
	if (ok) {
		sv_setpvn( ST(0), (char *)&ip_address, sizeof ip_address );
	}
	}

void
inet_ntoa(ip_address_sv)
	SV *	ip_address_sv
	CODE:
	{
	STRLEN addrlen;
	struct in_addr addr;
	char * addr_str;
	char * ip_address = SvPV(ip_address_sv,addrlen);
	if (addrlen != sizeof(addr)) {
	    croak("Bad arg length for %s, length is %d, should be %d",
			"Socket::inet_ntoa",
			addrlen, sizeof(addr));
	}

	Copy( ip_address, &addr, sizeof addr, char );
	addr_str = inet_ntoa(addr);

	ST(0) = sv_2mortal(newSVpvn(addr_str, strlen(addr_str)));
	}

void
pack_sockaddr_un(pathname)
	char *	pathname
	CODE:
	{
#ifdef I_SYS_UN
	struct sockaddr_un sun_ad; /* fear using sun */
	STRLEN len;

	Zero( &sun_ad, sizeof sun_ad, char );
	sun_ad.sun_family = AF_UNIX;
	len = strlen(pathname);
	if (len > sizeof(sun_ad.sun_path))
	    len = sizeof(sun_ad.sun_path);
#  ifdef OS2	/* Name should start with \socket\ and contain backslashes! */
	{
	    int off;
	    char *s, *e;

	    if (pathname[0] != '/' && pathname[0] != '\\')
		croak("Relative UNIX domain socket name '%s' unsupported", pathname);
	    else if (len < 8 
		     || pathname[7] != '/' && pathname[7] != '\\'
		     || !strnicmp(pathname + 1, "socket", 6))
		off = 7;
	    else
		off = 0;		/* Preserve names starting with \socket\ */
	    Copy( "\\socket", sun_ad.sun_path, off, char);
	    Copy( pathname, sun_ad.sun_path + off, len, char );

	    s = sun_ad.sun_path + off - 1;
	    e = s + len + 1;
	    while (++s < e)
		if (*s = '/')
		    *s = '\\';
	}
#  else	/* !( defined OS2 ) */ 
	Copy( pathname, sun_ad.sun_path, len, char );
#  endif
	ST(0) = sv_2mortal(newSVpvn((char *)&sun_ad, sizeof sun_ad));
#else
	ST(0) = (SV *) not_here("pack_sockaddr_un");
#endif
	
	}

void
unpack_sockaddr_un(sun_sv)
	SV *	sun_sv
	CODE:
	{
#ifdef I_SYS_UN
	struct sockaddr_un addr;
	STRLEN sockaddrlen;
	char * sun_ad = SvPV(sun_sv,sockaddrlen);
	char * e;
#   ifndef __linux__
	/* On Linux sockaddrlen on sockets returned by accept, recvfrom,
	   getpeername and getsockname is not equal to sizeof(addr). */
	if (sockaddrlen != sizeof(addr)) {
	    croak("Bad arg length for %s, length is %d, should be %d",
			"Socket::unpack_sockaddr_un",
			sockaddrlen, sizeof(addr));
	}
#   endif

	Copy( sun_ad, &addr, sizeof addr, char );

	if ( addr.sun_family != AF_UNIX ) {
	    croak("Bad address family for %s, got %d, should be %d",
			"Socket::unpack_sockaddr_un",
			addr.sun_family,
			AF_UNIX);
	}
	e = addr.sun_path;
	while (*e && e < addr.sun_path + sizeof addr.sun_path)
	    ++e;
	ST(0) = sv_2mortal(newSVpvn(addr.sun_path, e - addr.sun_path));
#else
	ST(0) = (SV *) not_here("unpack_sockaddr_un");
#endif
	}

void
pack_sockaddr_in(port,ip_address)
	unsigned short	port
	char *	ip_address
	CODE:
	{
	struct sockaddr_in sin;

	Zero( &sin, sizeof sin, char );
	sin.sin_family = AF_INET;
	sin.sin_port = htons(port);
	Copy( ip_address, &sin.sin_addr, sizeof sin.sin_addr, char );

	ST(0) = sv_2mortal(newSVpvn((char *)&sin, sizeof sin));
	}

void
unpack_sockaddr_in(sin_sv)
	SV *	sin_sv
	PPCODE:
	{
	STRLEN sockaddrlen;
	struct sockaddr_in addr;
	unsigned short	port;
	struct in_addr	ip_address;
	char *	sin = SvPV(sin_sv,sockaddrlen);
	if (sockaddrlen != sizeof(addr)) {
	    croak("Bad arg length for %s, length is %d, should be %d",
			"Socket::unpack_sockaddr_in",
			sockaddrlen, sizeof(addr));
	}
	Copy( sin, &addr,sizeof addr, char );
	if ( addr.sin_family != AF_INET ) {
	    croak("Bad address family for %s, got %d, should be %d",
			"Socket::unpack_sockaddr_in",
			addr.sin_family,
			AF_INET);
	} 
	port = ntohs(addr.sin_port);
	ip_address = addr.sin_addr;

	EXTEND(SP, 2);
	PUSHs(sv_2mortal(newSViv((IV) port)));
	PUSHs(sv_2mortal(newSVpvn((char *)&ip_address,sizeof ip_address)));
	}

void
INADDR_ANY()
	CODE:
	{
	struct in_addr	ip_address;
	ip_address.s_addr = htonl(INADDR_ANY);
	ST(0) = sv_2mortal(newSVpvn((char *)&ip_address,sizeof ip_address ));
	}

void
INADDR_LOOPBACK()
	CODE:
	{
	struct in_addr	ip_address;
	ip_address.s_addr = htonl(INADDR_LOOPBACK);
	ST(0) = sv_2mortal(newSVpvn((char *)&ip_address,sizeof ip_address));
	}

void
INADDR_NONE()
	CODE:
	{
	struct in_addr	ip_address;
	ip_address.s_addr = htonl(INADDR_NONE);
	ST(0) = sv_2mortal(newSVpvn((char *)&ip_address,sizeof ip_address));
	}

void
INADDR_BROADCAST()
	CODE:
	{
	struct in_addr	ip_address;
	ip_address.s_addr = htonl(INADDR_BROADCAST);
	ST(0) = sv_2mortal(newSVpvn((char *)&ip_address,sizeof ip_address));
	}