#define PERL_NO_GET_CONTEXT
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#include <stddef.h>
#ifndef VMS
# ifdef I_SYS_TYPES
# include <sys/types.h>
# endif
# if !defined(ultrix) /* Avoid double definition. */
# include <sys/socket.h>
# endif
# if defined(USE_SOCKS) && defined(I_SOCKS)
# include <socks.h>
# endif
# ifdef MPE
# define PF_INET AF_INET
# define PF_UNIX AF_UNIX
# define SOCK_RAW 3
# endif
# ifdef I_SYS_UN
# include <sys/un.h>
# endif
/* XXX Configure test for <netinet/in_systm.h needed XXX */
# if defined(NeXT) || defined(__NeXT__)
# include <netinet/in_systm.h>
# endif
# if defined(__sgi) && !defined(AF_LINK) && defined(PF_LINK) && PF_LINK == AF_LNK
# undef PF_LINK
# endif
# if defined(I_NETINET_IN) || defined(__ultrix__)
# include <netinet/in.h>
# endif
# ifdef I_NETDB
# if !defined(ultrix) /* Avoid double definition. */
# include <netdb.h>
# endif
# endif
# ifdef I_ARPA_INET
# include <arpa/inet.h>
# endif
# ifdef I_NETINET_TCP
# include <netinet/tcp.h>
# endif
#else
# include "sockadapt.h"
#endif
#ifdef NETWARE
NETDB_DEFINE_CONTEXT
NETINET_DEFINE_CONTEXT
#endif
#ifdef I_SYSUIO
# include <sys/uio.h>
#endif
#ifndef AF_NBS
# undef PF_NBS
#endif
#ifndef AF_X25
# undef PF_X25
#endif
#ifndef INADDR_NONE
# define INADDR_NONE 0xffffffff
#endif /* INADDR_NONE */
#ifndef INADDR_BROADCAST
# define INADDR_BROADCAST 0xffffffff
#endif /* INADDR_BROADCAST */
#ifndef INADDR_LOOPBACK
# define INADDR_LOOPBACK 0x7F000001
#endif /* INADDR_LOOPBACK */
#ifndef HAS_INET_ATON
/*
* Check whether "cp" is a valid ascii representation
* of an Internet address and convert to a binary address.
* Returns 1 if the address is valid, 0 if not.
* This replaces inet_addr, the return value from which
* cannot distinguish between failure and a local broadcast address.
*/
static int
my_inet_aton(register const char *cp, struct in_addr *addr)
{
dTHX;
register U32 val;
register int base;
register char c;
int nparts;
const char *s;
unsigned int parts[4];
register unsigned int *pp = parts;
if (!cp || !*cp)
return 0;
for (;;) {
/*
* Collect number up to ``.''.
* Values are specified as for C:
* 0x=hex, 0=octal, other=decimal.
*/
val = 0; base = 10;
if (*cp == '0') {
if (*++cp == 'x' || *cp == 'X')
base = 16, cp++;
else
base = 8;
}
while ((c = *cp) != '\0') {
if (isDIGIT(c)) {
val = (val * base) + (c - '0');
cp++;
continue;
}
if (base == 16 && (s=strchr(PL_hexdigit,c))) {
val = (val << 4) +
((s - PL_hexdigit) & 15);
cp++;
continue;
}
break;
}
if (*cp == '.') {
/*
* Internet format:
* a.b.c.d
* a.b.c (with c treated as 16-bits)
* a.b (with b treated as 24 bits)
*/
if (pp >= parts + 3 || val > 0xff)
return 0;
*pp++ = val, cp++;
} else
break;
}
/*
* Check for trailing characters.
*/
if (*cp && !isSPACE(*cp))
return 0;
/*
* Concoct the address according to
* the number of parts specified.
*/
nparts = pp - parts + 1; /* force to an int for switch() */
switch (nparts) {
case 1: /* a -- 32 bits */
break;
case 2: /* a.b -- 8.24 bits */
if (val > 0xffffff)
return 0;
val |= parts[0] << 24;
break;
case 3: /* a.b.c -- 8.8.16 bits */
if (val > 0xffff)
return 0;
val |= (parts[0] << 24) | (parts[1] << 16);
break;
case 4: /* a.b.c.d -- 8.8.8.8 bits */
if (val > 0xff)
return 0;
val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8);
break;
}
addr->s_addr = htonl(val);
return 1;
}
#undef inet_aton
#define inet_aton my_inet_aton
#endif /* ! HAS_INET_ATON */
static int
not_here(const char *s)
{
croak("Socket::%s not implemented on this architecture", s);
return -1;
}
#define PERL_IN_ADDR_S_ADDR_SIZE 4
/*
* Bad assumptions possible here.
*
* Bad Assumption 1: struct in_addr has no other fields
* than the s_addr (which is the field we care about
* in here, really). However, we can be fed either 4-byte
* addresses (from pack("N", ...), or va.b.c.d, or ...),
* or full struct in_addrs (from e.g. pack_sockaddr_in()),
* which may or may not be 4 bytes in size.
*
* Bad Assumption 2: the s_addr field is a simple type
* (such as an int, u_int32_t). It can be a bit field,
* in which case using & (address-of) on it or taking sizeof()
* wouldn't go over too well. (Those are not attempted
* now but in case someone thinks to change the below code
* to use addr.s_addr instead of addr, you have been warned.)
*
* Bad Assumption 3: the s_addr is the first field in
* an in_addr, or that its bytes are the first bytes in
* an in_addr.
*
* These bad assumptions are wrong in UNICOS which has
* struct in_addr { struct { u_long st_addr:32; } s_da };
* #define s_addr s_da.st_addr
* and u_long is 64 bits.
*
* --jhi */
#include "const-c.inc"
#ifdef HAS_GETADDRINFO
static SV *err_to_SV(pTHX_ int err)
{
SV *ret = sv_newmortal();
SvUPGRADE(ret, SVt_PVNV);
if(err) {
const char *error = gai_strerror(err);
sv_setpv(ret, error);
}
else {
sv_setpv(ret, "");
}
SvIV_set(ret, err); SvIOK_on(ret);
return ret;
}
static void xs_getaddrinfo(pTHX_ CV *cv)
{
dVAR;
dXSARGS;
SV *host;
SV *service;
SV *hints;
char *hostname = NULL;
char *servicename = NULL;
STRLEN len;
struct addrinfo hints_s;
struct addrinfo *res;
struct addrinfo *res_iter;
int err;
int n_res;
if(items > 3)
croak_xs_usage(cv, "host, service, hints");
SP -= items;
if(items < 1)
host = &PL_sv_undef;
else
host = ST(0);
if(items < 2)
service = &PL_sv_undef;
else
service = ST(1);
if(items < 3)
hints = NULL;
else
hints = ST(2);
SvGETMAGIC(host);
if(SvOK(host)) {
hostname = SvPV_nomg(host, len);
if (!len)
hostname = NULL;
}
SvGETMAGIC(service);
if(SvOK(service)) {
servicename = SvPV_nomg(service, len);
if (!len)
servicename = NULL;
}
Zero(&hints_s, sizeof hints_s, char);
hints_s.ai_family = PF_UNSPEC;
if(hints && SvOK(hints)) {
HV *hintshash;
SV **valp;
if(!SvROK(hints) || SvTYPE(SvRV(hints)) != SVt_PVHV)
croak("hints is not a HASH reference");
hintshash = (HV*)SvRV(hints);
if((valp = hv_fetch(hintshash, "flags", 5, 0)) != NULL)
hints_s.ai_flags = SvIV(*valp);
if((valp = hv_fetch(hintshash, "family", 6, 0)) != NULL)
hints_s.ai_family = SvIV(*valp);
if((valp = hv_fetch(hintshash, "socktype", 8, 0)) != NULL)
hints_s.ai_socktype = SvIV(*valp);
if((valp = hv_fetch(hintshash, "protocol", 8, 0)) != NULL)
hints_s.ai_protocol = SvIV(*valp);
}
err = getaddrinfo(hostname, servicename, &hints_s, &res);
XPUSHs(err_to_SV(aTHX_ err));
if(err)
XSRETURN(1);
n_res = 0;
for(res_iter = res; res_iter; res_iter = res_iter->ai_next) {
HV *res_hv = newHV();
(void)hv_stores(res_hv, "family", newSViv(res_iter->ai_family));
(void)hv_stores(res_hv, "socktype", newSViv(res_iter->ai_socktype));
(void)hv_stores(res_hv, "protocol", newSViv(res_iter->ai_protocol));
(void)hv_stores(res_hv, "addr", newSVpvn((char*)res_iter->ai_addr, res_iter->ai_addrlen));
if(res_iter->ai_canonname)
(void)hv_stores(res_hv, "canonname", newSVpv(res_iter->ai_canonname, 0));
else
(void)hv_stores(res_hv, "canonname", newSV(0));
XPUSHs(sv_2mortal(newRV_noinc((SV*)res_hv)));
n_res++;
}
freeaddrinfo(res);
XSRETURN(1 + n_res);
}
#endif
#ifdef HAS_GETNAMEINFO
static void xs_getnameinfo(pTHX_ CV *cv)
{
dVAR;
dXSARGS;
SV *addr;
int flags;
char host[1024];
char serv[256];
char *sa; /* we'll cast to struct sockaddr * when necessary */
STRLEN addr_len;
int err;
if(items < 1 || items > 2)
croak_xs_usage(cv, "addr, flags=0");
SP -= items;
addr = ST(0);
if(items < 2)
flags = 0;
else
flags = SvIV(ST(1));
if(!SvPOK(addr))
croak("addr is not a string");
addr_len = SvCUR(addr);
/* We need to ensure the sockaddr is aligned, because a random SvPV might
* not be due to SvOOK */
Newx(sa, addr_len, char);
Copy(SvPV_nolen(addr), sa, addr_len, char);
#ifdef HAS_SOCKADDR_SA_LEN
((struct sockaddr *)sa)->sa_len = addr_len;
#endif
err = getnameinfo((struct sockaddr *)sa, addr_len,
host, sizeof(host),
serv, sizeof(serv),
flags);
Safefree(sa);
XPUSHs(err_to_SV(aTHX_ err));
if(err)
XSRETURN(1);
XPUSHs(sv_2mortal(newSVpv(host, 0)));
XPUSHs(sv_2mortal(newSVpv(serv, 0)));
XSRETURN(3);
}
#endif
MODULE = Socket PACKAGE = Socket
INCLUDE: const-xs.inc
BOOT:
#ifdef HAS_GETADDRINFO
newXS("Socket::getaddrinfo", xs_getaddrinfo, __FILE__);
#endif
#ifdef HAS_GETNAMEINFO
newXS("Socket::getnameinfo", xs_getnameinfo, __FILE__);
#endif
void
inet_aton(host)
char * host
CODE:
{
struct in_addr ip_address;
struct hostent * phe;
if ((*host != '\0') && inet_aton(host, &ip_address)) {
ST(0) = newSVpvn_flags((char *)&ip_address, sizeof ip_address, SVs_TEMP);
XSRETURN(1);
}
phe = gethostbyname(host);
if (phe && phe->h_addrtype == AF_INET && phe->h_length == 4) {
ST(0) = newSVpvn_flags((char *)phe->h_addr, phe->h_length, SVs_TEMP);
XSRETURN(1);
}
XSRETURN_UNDEF;
}
void
inet_ntoa(ip_address_sv)
SV * ip_address_sv
CODE:
{
STRLEN addrlen;
struct in_addr addr;
char * ip_address;
if (DO_UTF8(ip_address_sv) && !sv_utf8_downgrade(ip_address_sv, 1))
croak("Wide character in %s", "Socket::inet_ntoa");
ip_address = SvPVbyte(ip_address_sv, addrlen);
if (addrlen == sizeof(addr) || addrlen == 4)
addr.s_addr =
(ip_address[0] & 0xFF) << 24 |
(ip_address[1] & 0xFF) << 16 |
(ip_address[2] & 0xFF) << 8 |
(ip_address[3] & 0xFF);
else
croak("Bad arg length for %s, length is %d, should be %d",
"Socket::inet_ntoa",
addrlen, sizeof(addr));
/* We could use inet_ntoa() but that is broken
* in HP-UX + GCC + 64bitint (returns "0.0.0.0"),
* so let's use this sprintf() workaround everywhere.
* This is also more threadsafe than using inet_ntoa(). */
ST(0) = sv_2mortal(Perl_newSVpvf(aTHX_ "%d.%d.%d.%d", /* IPv6? */
((addr.s_addr >> 24) & 0xFF),
((addr.s_addr >> 16) & 0xFF),
((addr.s_addr >> 8) & 0xFF),
( addr.s_addr & 0xFF)));
}
void
sockaddr_family(sockaddr)
SV * sockaddr
PREINIT:
STRLEN sockaddr_len;
char *sockaddr_pv = SvPVbyte(sockaddr, sockaddr_len);
CODE:
if (sockaddr_len < offsetof(struct sockaddr, sa_data)) {
croak("Bad arg length for %s, length is %d, should be at least %d",
"Socket::sockaddr_family", sockaddr_len,
offsetof(struct sockaddr, sa_data));
}
ST(0) = sv_2mortal(newSViv(((struct sockaddr*)sockaddr_pv)->sa_family));
void
pack_sockaddr_un(pathname)
SV * pathname
CODE:
{
#ifdef I_SYS_UN
struct sockaddr_un sun_ad; /* fear using sun */
STRLEN len;
char * pathname_pv;
int addr_len;
Zero( &sun_ad, sizeof sun_ad, char );
sun_ad.sun_family = AF_UNIX;
pathname_pv = SvPV(pathname,len);
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_pv[0] != '/' && pathname_pv[0] != '\\')
croak("Relative UNIX domain socket name '%s' unsupported",
pathname_pv);
else if (len < 8
|| pathname_pv[7] != '/' && pathname_pv[7] != '\\'
|| !strnicmp(pathname_pv + 1, "socket", 6))
off = 7;
else
off = 0; /* Preserve names starting with \socket\ */
Copy( "\\socket", sun_ad.sun_path, off, char);
Copy( pathname_pv, 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_pv, sun_ad.sun_path, len, char );
# endif
if (0) not_here("dummy");
if (len > 1 && sun_ad.sun_path[0] == '\0') {
/* Linux-style abstract-namespace socket.
* The name is not a file name, but an array of arbitrary
* character, starting with \0 and possibly including \0s,
* therefore the length of the structure must denote the
* end of that character array */
addr_len = (char *)&(sun_ad.sun_path) - (char *)&sun_ad + len;
} else {
addr_len = sizeof sun_ad;
}
# ifdef HAS_SOCKADDR_SA_LEN
sun_ad.sun_len = addr_len;
# endif
ST(0) = newSVpvn_flags((char *)&sun_ad, addr_len, SVs_TEMP);
#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 = SvPVbyte(sun_sv,sockaddrlen);
int addr_len;
# 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);
}
if (addr.sun_path[0] == '\0') {
/* Linux-style abstract socket address begins with a nul
* and can contain nuls. */
addr_len = (char *)&addr - (char *)&(addr.sun_path) + sockaddrlen;
} else {
for (addr_len = 0; addr.sun_path[addr_len]
&& addr_len < (int)sizeof(addr.sun_path); addr_len++);
}
ST(0) = newSVpvn_flags(addr.sun_path, addr_len, SVs_TEMP);
#else
ST(0) = (SV *) not_here("unpack_sockaddr_un");
#endif
}
void
pack_sockaddr_in(port, ip_address_sv)
unsigned short port
SV * ip_address_sv
CODE:
{
struct sockaddr_in sin;
struct in_addr addr;
STRLEN addrlen;
char * ip_address;
if (DO_UTF8(ip_address_sv) && !sv_utf8_downgrade(ip_address_sv, 1))
croak("Wide character in %s", "Socket::pack_sockaddr_in");
ip_address = SvPVbyte(ip_address_sv, addrlen);
if (addrlen == sizeof(addr) || addrlen == 4)
addr.s_addr =
(ip_address[0] & 0xFF) << 24 |
(ip_address[1] & 0xFF) << 16 |
(ip_address[2] & 0xFF) << 8 |
(ip_address[3] & 0xFF);
else
croak("Bad arg length for %s, length is %d, should be %d",
"Socket::pack_sockaddr_in",
addrlen, sizeof(addr));
Zero( &sin, sizeof sin, char );
sin.sin_family = AF_INET;
sin.sin_port = htons(port);
sin.sin_addr.s_addr = htonl(addr.s_addr);
# ifdef HAS_SOCKADDR_SA_LEN
sin.sin_len = sizeof (sin);
# endif
ST(0) = newSVpvn_flags((char *)&sin, sizeof (sin), SVs_TEMP);
}
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 = SvPVbyte(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(newSVpvn_flags((char *)&ip_address, sizeof(ip_address), SVs_TEMP));
}
void
pack_sockaddr_in6(port, sin6_addr, scope_id=0, flowinfo=0)
unsigned short port
SV * sin6_addr
unsigned long scope_id
unsigned long flowinfo
CODE:
{
#ifdef AF_INET6
struct sockaddr_in6 sin6;
char * addrbytes;
STRLEN addrlen;
if (DO_UTF8(sin6_addr) && !sv_utf8_downgrade(sin6_addr, 1))
croak("Wide character in %s", "Socket::pack_sockaddr_in6");
addrbytes = SvPVbyte(sin6_addr, addrlen);
if(addrlen != sizeof(sin6.sin6_addr))
croak("Bad arg length %s, length is %d, should be %d",
"Socket::pack_sockaddr_in6", addrlen, sizeof(sin6.sin6_addr));
Zero(&sin6, sizeof(sin6), char);
sin6.sin6_family = AF_INET6;
sin6.sin6_port = htons(port);
sin6.sin6_flowinfo = htonl(flowinfo);
Copy(addrbytes, &sin6.sin6_addr, sizeof(sin6.sin6_addr), char);
# ifdef HAS_SIN6_SCOPE_ID
sin6.sin6_scope_id = scope_id;
# else
if(scope_id != 0)
warn("%s cannot represent non-zero scope_id %d",
"Socket::pack_sockaddr_in6", scope_id);
# endif
# ifdef HAS_SOCKADDR_SA_LEN
sin6.sin6_len = sizeof(sin6);
# endif
ST(0) = newSVpvn_flags((char *)&sin6, sizeof(sin6), SVs_TEMP);
#else
ST(0) = (SV*)not_here("pack_sockaddr_in6");
#endif
}
void
unpack_sockaddr_in6(sin6_sv)
SV * sin6_sv
PPCODE:
{
#ifdef AF_INET6
STRLEN addrlen;
struct sockaddr_in6 sin6;
char * addrbytes = SvPVbyte(sin6_sv, addrlen);
if (addrlen != sizeof(sin6))
croak("Bad arg length for %s, length is %d, should be %d",
"Socket::unpack_sockaddr_in6",
addrlen, sizeof(sin6));
Copy(addrbytes, &sin6, sizeof(sin6), char);
if(sin6.sin6_family != AF_INET6)
croak("Bad address family for %s, got %d, should be %d",
"Socket::unpack_sockaddr_in6",
sin6.sin6_family, AF_INET6);
EXTEND(SP, 4);
mPUSHi(ntohs(sin6.sin6_port));
mPUSHp((char *)&sin6.sin6_addr, sizeof(sin6.sin6_addr));
# ifdef HAS_SIN6_SCOPE_ID
mPUSHi(sin6.sin6_scope_id);
# else
mPUSHi(0);
# endif
mPUSHi(ntohl(sin6.sin6_flowinfo));
#else
ST(0) = (SV*)not_here("pack_sockaddr_in6");
#endif
}
void
inet_ntop(af, ip_address_sv)
int af
SV * ip_address_sv
CODE:
#ifdef HAS_INETNTOP
STRLEN addrlen, struct_size;
#ifdef AF_INET6
struct in6_addr addr;
char str[INET6_ADDRSTRLEN];
#else
struct in_addr addr;
char str[INET_ADDRSTRLEN];
#endif
char *ip_address = SvPV(ip_address_sv, addrlen);
struct_size = sizeof(addr);
if(af != AF_INET
#ifdef AF_INET6
&& af != AF_INET6
#endif
) {
croak("Bad address family for %s, got %d, should be"
#ifdef AF_INET6
" either AF_INET or AF_INET6",
#else
" AF_INET",
#endif
"Socket::inet_ntop",
af);
}
Copy( ip_address, &addr, sizeof addr, char );
inet_ntop(af, &addr, str, sizeof str);
ST(0) = newSVpvn_flags(str, strlen(str), SVs_TEMP);
#else
ST(0) = (SV *)not_here("inet_ntop");
#endif
void
inet_pton(af, host)
int af
const char * host
CODE:
#ifdef HAS_INETPTON
int ok;
#ifdef AF_INET6
struct in6_addr ip_address;
#else
struct in_addr ip_address;
#endif
if(af != AF_INET
#ifdef AF_INET6
&& af != AF_INET6
#endif
) {
croak("Bad address family for %s, got %d, should be"
#ifdef AF_INET6
" either AF_INET or AF_INET6",
#else
" AF_INET",
#endif
"Socket::inet_pton",
af);
}
ok = (*host != '\0') && inet_pton(af, host, &ip_address);
ST(0) = sv_newmortal();
if (ok) {
sv_setpvn( ST(0), (char *)&ip_address, sizeof(ip_address) );
}
#else
ST(0) = (SV *)not_here("inet_pton");
#endif