diff options
Diffstat (limited to 'cpan/Socket/Socket.xs')
| -rw-r--r-- | cpan/Socket/Socket.xs | 851 |
1 files changed, 851 insertions, 0 deletions
diff --git a/cpan/Socket/Socket.xs b/cpan/Socket/Socket.xs new file mode 100644 index 0000000000..f571ac7e71 --- /dev/null +++ b/cpan/Socket/Socket.xs @@ -0,0 +1,851 @@ +#define PERL_NO_GET_CONTEXT +#include "EXTERN.h" +#include "perl.h" +#include "XSUB.h" + +#include <stddef.h> + +#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 + +#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 croak_sv +# define croak_sv(sv) croak(SvPV_nolen(sv)) +#endif + +#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 + +void +pack_ipv6_mreq(addr, interface) + SV * addr + unsigned int interface + CODE: + { +#ifdef AF_INET6 + struct ipv6_mreq mreq; + char * addrbytes; + STRLEN addrlen; + if (DO_UTF8(addr) && !sv_utf8_downgrade(addr, 1)) + croak("Wide character in %s", "Socket::pack_ipv6_mreq"); + addrbytes = SvPVbyte(addr, addrlen); + if(addrlen != sizeof(mreq.ipv6mr_multiaddr)) + croak("Bad arg length %s, length is %d, should be %d", + "Socket::pack_ipv6_mreq", addrlen, sizeof(mreq.ipv6mr_multiaddr)); + Zero(&mreq, sizeof(mreq), char); + Copy(addrbytes, &mreq.ipv6mr_multiaddr, sizeof(mreq.ipv6mr_multiaddr), char); + mreq.ipv6mr_interface = interface; + ST(0) = newSVpvn_flags((char *)&mreq, sizeof(mreq), SVs_TEMP); +#else + ST(0) = (SV*)not_here("pack_ipv6_mreq"); +#endif + } + +void +unpack_ipv6_mreq(mreq_sv) + SV * mreq_sv + PPCODE: + { +#ifdef AF_INET6 + struct ipv6_mreq mreq; + STRLEN mreqlen; + char * mreqbytes = SvPVbyte(mreq_sv, mreqlen); + if (mreqlen != sizeof(mreq)) + croak("Bad arg length for %s, length is %d, should be %d", + "Socket::unpack_ipv6_mreq", + mreqlen, sizeof(mreq)); + Copy(mreqbytes, &mreq, sizeof(mreq), char); + EXTEND(SP, 2); + mPUSHp((char *)&mreq.ipv6mr_multiaddr, sizeof(mreq.ipv6mr_multiaddr)); + mPUSHi(mreq.ipv6mr_interface); +#else + not_here("unpack_ipv6_mreq"); +#endif + } |