This is a live mirror of the Perl 5 development currently hosted at https://github.com/perl/perl5
Conditionally set sa_len-type fields when packing sockaddr addresses
[perl5.git] / ext / Socket / Socket.xs
CommitLineData
c5be433b 1#define PERL_NO_GET_CONTEXT
a0d0e21e
LW
2#include "EXTERN.h"
3#include "perl.h"
4#include "XSUB.h"
5
fc87b71c
NIS
6#include <stddef.h>
7
8e07c86e
AD
8#ifndef VMS
9# ifdef I_SYS_TYPES
10# include <sys/types.h>
11# endif
87edd446 12# if !defined(ultrix) /* Avoid double definition. */
43db6828
JH
13# include <sys/socket.h>
14# endif
29209bc5 15# if defined(USE_SOCKS) && defined(I_SOCKS)
86959918 16# include <socks.h>
a062834f 17# endif
9cc6feab
JH
18# ifdef MPE
19# define PF_INET AF_INET
20# define PF_UNIX AF_UNIX
21# define SOCK_RAW 3
22# endif
23# ifdef I_SYS_UN
24# include <sys/un.h>
25# endif
bf9b2f8f
JH
26/* XXX Configure test for <netinet/in_systm.h needed XXX */
27# if defined(NeXT) || defined(__NeXT__)
28# include <netinet/in_systm.h>
29# endif
3b8fd1d5
JH
30# if defined(__sgi) && !defined(AF_LINK) && defined(PF_LINK) && PF_LINK == AF_LNK
31# undef PF_LINK
32# endif
5518ecd4 33# if defined(I_NETINET_IN) || defined(__ultrix__)
8e07c86e
AD
34# include <netinet/in.h>
35# endif
86959918 36# ifdef I_NETDB
87edd446
JH
37# if !defined(ultrix) /* Avoid double definition. */
38# include <netdb.h>
39# endif
86959918 40# endif
9cc6feab
JH
41# ifdef I_ARPA_INET
42# include <arpa/inet.h>
43# endif
44# ifdef I_NETINET_TCP
45# include <netinet/tcp.h>
46# endif
8e07c86e 47#else
9cc6feab 48# include "sockadapt.h"
8e07c86e 49#endif
a0d0e21e 50
2986a63f
JH
51#ifdef NETWARE
52NETDB_DEFINE_CONTEXT
53NETINET_DEFINE_CONTEXT
54#endif
55
6b1016b5
JH
56#ifdef I_SYSUIO
57# include <sys/uio.h>
58#endif
59
a0d0e21e 60#ifndef AF_NBS
9cc6feab 61# undef PF_NBS
a0d0e21e
LW
62#endif
63
64#ifndef AF_X25
9cc6feab 65# undef PF_X25
a0d0e21e
LW
66#endif
67
8e07c86e 68#ifndef INADDR_NONE
9cc6feab 69# define INADDR_NONE 0xffffffff
8e07c86e 70#endif /* INADDR_NONE */
7e1af8bc 71#ifndef INADDR_BROADCAST
9cc6feab 72# define INADDR_BROADCAST 0xffffffff
7e1af8bc 73#endif /* INADDR_BROADCAST */
8e07c86e 74#ifndef INADDR_LOOPBACK
9cc6feab 75# define INADDR_LOOPBACK 0x7F000001
8e07c86e
AD
76#endif /* INADDR_LOOPBACK */
77
7e1af8bc
PP
78#ifndef HAS_INET_ATON
79
a062834f 80/*
7e1af8bc
PP
81 * Check whether "cp" is a valid ascii representation
82 * of an Internet address and convert to a binary address.
83 * Returns 1 if the address is valid, 0 if not.
84 * This replaces inet_addr, the return value from which
85 * cannot distinguish between failure and a local broadcast address.
86 */
87static int
f0f333f4 88my_inet_aton(register const char *cp, struct in_addr *addr)
7e1af8bc 89{
c5be433b 90 dTHX;
0caed002 91 register U32 val;
7e1af8bc
PP
92 register int base;
93 register char c;
94 int nparts;
95 const char *s;
96 unsigned int parts[4];
97 register unsigned int *pp = parts;
98
dfb6a7ef 99 if (!cp || !*cp)
0caed002 100 return 0;
7e1af8bc
PP
101 for (;;) {
102 /*
103 * Collect number up to ``.''.
104 * Values are specified as for C:
105 * 0x=hex, 0=octal, other=decimal.
106 */
107 val = 0; base = 10;
108 if (*cp == '0') {
109 if (*++cp == 'x' || *cp == 'X')
110 base = 16, cp++;
111 else
112 base = 8;
113 }
114 while ((c = *cp) != '\0') {
115 if (isDIGIT(c)) {
116 val = (val * base) + (c - '0');
117 cp++;
118 continue;
119 }
3280af22 120 if (base == 16 && (s=strchr(PL_hexdigit,c))) {
a062834f 121 val = (val << 4) +
3280af22 122 ((s - PL_hexdigit) & 15);
7e1af8bc
PP
123 cp++;
124 continue;
125 }
126 break;
127 }
128 if (*cp == '.') {
129 /*
130 * Internet format:
131 * a.b.c.d
132 * a.b.c (with c treated as 16-bits)
133 * a.b (with b treated as 24 bits)
134 */
135 if (pp >= parts + 3 || val > 0xff)
136 return 0;
137 *pp++ = val, cp++;
138 } else
139 break;
140 }
141 /*
142 * Check for trailing characters.
143 */
144 if (*cp && !isSPACE(*cp))
145 return 0;
146 /*
147 * Concoct the address according to
148 * the number of parts specified.
149 */
150 nparts = pp - parts + 1; /* force to an int for switch() */
151 switch (nparts) {
152
153 case 1: /* a -- 32 bits */
154 break;
155
156 case 2: /* a.b -- 8.24 bits */
157 if (val > 0xffffff)
158 return 0;
159 val |= parts[0] << 24;
160 break;
161
162 case 3: /* a.b.c -- 8.8.16 bits */
163 if (val > 0xffff)
164 return 0;
165 val |= (parts[0] << 24) | (parts[1] << 16);
166 break;
167
168 case 4: /* a.b.c.d -- 8.8.8.8 bits */
169 if (val > 0xff)
170 return 0;
171 val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8);
172 break;
173 }
174 addr->s_addr = htonl(val);
175 return 1;
176}
177
178#undef inet_aton
179#define inet_aton my_inet_aton
180
181#endif /* ! HAS_INET_ATON */
182
8e07c86e 183
a0d0e21e 184static int
d3f5e399 185not_here(const char *s)
a0d0e21e
LW
186{
187 croak("Socket::%s not implemented on this architecture", s);
188 return -1;
189}
190
2528d3bc
JH
191#define PERL_IN_ADDR_S_ADDR_SIZE 4
192
193/*
194* Bad assumptions possible here.
195*
196* Bad Assumption 1: struct in_addr has no other fields
197* than the s_addr (which is the field we care about
198* in here, really). However, we can be fed either 4-byte
199* addresses (from pack("N", ...), or va.b.c.d, or ...),
200* or full struct in_addrs (from e.g. pack_sockaddr_in()),
201* which may or may not be 4 bytes in size.
202*
203* Bad Assumption 2: the s_addr field is a simple type
204* (such as an int, u_int32_t). It can be a bit field,
205* in which case using & (address-of) on it or taking sizeof()
206* wouldn't go over too well. (Those are not attempted
207* now but in case someone thinks to change the below code
208* to use addr.s_addr instead of addr, you have been warned.)
209*
210* Bad Assumption 3: the s_addr is the first field in
211* an in_addr, or that its bytes are the first bytes in
212* an in_addr.
213*
214* These bad assumptions are wrong in UNICOS which has
215* struct in_addr { struct { u_long st_addr:32; } s_da };
216* #define s_addr s_da.st_addr
217* and u_long is 64 bits.
218*
219* --jhi */
220
1cb0fb50 221#include "const-c.inc"
8e07c86e 222
a0d0e21e
LW
223MODULE = Socket PACKAGE = Socket
224
1cb0fb50 225INCLUDE: const-xs.inc
8e07c86e
AD
226
227void
228inet_aton(host)
229 char * host
230 CODE:
231 {
fbf77aee 232 struct in_addr ip_address;
8e07c86e 233 struct hostent * phe;
6e110628 234 int ok = (*host != '\0') && inet_aton(host, &ip_address);
8e07c86e 235
2130c338 236 if (!ok && (phe = gethostbyname(host)) &&
237 phe->h_addrtype == AF_INET && phe->h_length == 4) {
fbf77aee 238 Copy( phe->h_addr, &ip_address, phe->h_length, char );
7e1af8bc 239 ok = 1;
8e07c86e
AD
240 }
241
242 ST(0) = sv_newmortal();
2528d3bc 243 if (ok)
fbf77aee 244 sv_setpvn( ST(0), (char *)&ip_address, sizeof ip_address );
8e07c86e 245 }
8e07c86e
AD
246
247void
248inet_ntoa(ip_address_sv)
249 SV * ip_address_sv
250 CODE:
251 {
252 STRLEN addrlen;
253 struct in_addr addr;
1d68b939
JH
254 char * ip_address;
255 if (DO_UTF8(ip_address_sv) && !sv_utf8_downgrade(ip_address_sv, 1))
bc354c70 256 croak("Wide character in %s", "Socket::inet_ntoa");
f780604f 257 ip_address = SvPVbyte(ip_address_sv, addrlen);
2528d3bc
JH
258 if (addrlen == sizeof(addr) || addrlen == 4)
259 addr.s_addr =
260 (ip_address[0] & 0xFF) << 24 |
261 (ip_address[1] & 0xFF) << 16 |
262 (ip_address[2] & 0xFF) << 8 |
263 (ip_address[3] & 0xFF);
264 else
265 croak("Bad arg length for %s, length is %d, should be %d",
266 "Socket::inet_ntoa",
267 addrlen, sizeof(addr));
268 /* We could use inet_ntoa() but that is broken
269 * in HP-UX + GCC + 64bitint (returns "0.0.0.0"),
1d88b533
JH
270 * so let's use this sprintf() workaround everywhere.
271 * This is also more threadsafe than using inet_ntoa(). */
8063d419
NC
272 ST(0) = sv_2mortal(Perl_newSVpvf(aTHX_ "%d.%d.%d.%d", /* IPv6? */
273 ((addr.s_addr >> 24) & 0xFF),
274 ((addr.s_addr >> 16) & 0xFF),
275 ((addr.s_addr >> 8) & 0xFF),
276 ( addr.s_addr & 0xFF)));
8e07c86e
AD
277 }
278
279void
2a84dff3
GA
280sockaddr_family(sockaddr)
281 SV * sockaddr
282 PREINIT:
283 STRLEN sockaddr_len;
f780604f 284 char *sockaddr_pv = SvPVbyte(sockaddr, sockaddr_len);
2a84dff3
GA
285 CODE:
286 if (sockaddr_len < offsetof(struct sockaddr, sa_data)) {
287 croak("Bad arg length for %s, length is %d, should be at least %d",
288 "Socket::sockaddr_family", sockaddr_len,
289 offsetof(struct sockaddr, sa_data));
290 }
291 ST(0) = sv_2mortal(newSViv(((struct sockaddr*)sockaddr_pv)->sa_family));
292
293void
4633a7c4 294pack_sockaddr_un(pathname)
7513c55b 295 SV * pathname
4633a7c4
LW
296 CODE:
297 {
25f94b33 298#ifdef I_SYS_UN
4633a7c4 299 struct sockaddr_un sun_ad; /* fear using sun */
fcdb74fc 300 STRLEN len;
7513c55b 301 char * pathname_pv;
99f13d4c 302 int addr_len;
202975e6 303
4633a7c4
LW
304 Zero( &sun_ad, sizeof sun_ad, char );
305 sun_ad.sun_family = AF_UNIX;
7513c55b 306 pathname_pv = SvPV(pathname,len);
20408e3c
GS
307 if (len > sizeof(sun_ad.sun_path))
308 len = sizeof(sun_ad.sun_path);
202975e6
IZ
309# ifdef OS2 /* Name should start with \socket\ and contain backslashes! */
310 {
311 int off;
312 char *s, *e;
313
7513c55b
RGS
314 if (pathname_pv[0] != '/' && pathname_pv[0] != '\\')
315 croak("Relative UNIX domain socket name '%s' unsupported",
316 pathname_pv);
a062834f 317 else if (len < 8
7513c55b
RGS
318 || pathname_pv[7] != '/' && pathname_pv[7] != '\\'
319 || !strnicmp(pathname_pv + 1, "socket", 6))
202975e6
IZ
320 off = 7;
321 else
322 off = 0; /* Preserve names starting with \socket\ */
323 Copy( "\\socket", sun_ad.sun_path, off, char);
7513c55b 324 Copy( pathname_pv, sun_ad.sun_path + off, len, char );
202975e6
IZ
325
326 s = sun_ad.sun_path + off - 1;
327 e = s + len + 1;
328 while (++s < e)
329 if (*s = '/')
330 *s = '\\';
331 }
a062834f 332# else /* !( defined OS2 ) */
7513c55b 333 Copy( pathname_pv, sun_ad.sun_path, len, char );
202975e6 334# endif
a062834f 335 if (0) not_here("dummy");
99f13d4c
LR
336 if (len > 1 && sun_ad.sun_path[0] == '\0') {
337 /* Linux-style abstract-namespace socket.
338 * The name is not a file name, but an array of arbitrary
339 * character, starting with \0 and possibly including \0s,
340 * therefore the length of the structure must denote the
341 * end of that character array */
178e6016 342 addr_len = (char *)&(sun_ad.sun_path) - (char *)&sun_ad + len;
99f13d4c
LR
343 } else {
344 addr_len = sizeof sun_ad;
345 }
5897b17c
PLE
346# ifdef HAS_SOCKADDR_SA_LEN
347 sun_ad.sun_len = addr_len;
348# endif
d3d34884 349 ST(0) = newSVpvn_flags((char *)&sun_ad, addr_len, SVs_TEMP);
25f94b33
AD
350#else
351 ST(0) = (SV *) not_here("pack_sockaddr_un");
352#endif
353
4633a7c4
LW
354 }
355
356void
357unpack_sockaddr_un(sun_sv)
358 SV * sun_sv
f13e1b2f 359 CODE:
4633a7c4 360 {
25f94b33 361#ifdef I_SYS_UN
4633a7c4 362 struct sockaddr_un addr;
fcdb74fc 363 STRLEN sockaddrlen;
f780604f 364 char * sun_ad = SvPVbyte(sun_sv,sockaddrlen);
89904c08 365 int addr_len;
36902e12
RG
366# ifndef __linux__
367 /* On Linux sockaddrlen on sockets returned by accept, recvfrom,
368 getpeername and getsockname is not equal to sizeof(addr). */
4633a7c4
LW
369 if (sockaddrlen != sizeof(addr)) {
370 croak("Bad arg length for %s, length is %d, should be %d",
371 "Socket::unpack_sockaddr_un",
372 sockaddrlen, sizeof(addr));
373 }
36902e12 374# endif
4633a7c4
LW
375
376 Copy( sun_ad, &addr, sizeof addr, char );
377
378 if ( addr.sun_family != AF_UNIX ) {
379 croak("Bad address family for %s, got %d, should be %d",
380 "Socket::unpack_sockaddr_un",
381 addr.sun_family,
382 AF_UNIX);
fcdb74fc 383 }
89904c08
LR
384
385 if (addr.sun_path[0] == '\0') {
386 /* Linux-style abstract socket address begins with a nul
387 * and can contain nuls. */
178e6016 388 addr_len = (char *)&addr - (char *)&(addr.sun_path) + sockaddrlen;
89904c08
LR
389 } else {
390 for (addr_len = 0; addr.sun_path[addr_len]
c33e8be1 391 && addr_len < (int)sizeof(addr.sun_path); addr_len++);
89904c08
LR
392 }
393
d3d34884 394 ST(0) = newSVpvn_flags(addr.sun_path, addr_len, SVs_TEMP);
25f94b33
AD
395#else
396 ST(0) = (SV *) not_here("unpack_sockaddr_un");
397#endif
4633a7c4
LW
398 }
399
400void
2528d3bc 401pack_sockaddr_in(port, ip_address_sv)
2c129a17 402 unsigned short port
2528d3bc 403 SV * ip_address_sv
8e07c86e
AD
404 CODE:
405 {
406 struct sockaddr_in sin;
2528d3bc
JH
407 struct in_addr addr;
408 STRLEN addrlen;
409 char * ip_address;
410 if (DO_UTF8(ip_address_sv) && !sv_utf8_downgrade(ip_address_sv, 1))
bc354c70 411 croak("Wide character in %s", "Socket::pack_sockaddr_in");
f780604f 412 ip_address = SvPVbyte(ip_address_sv, addrlen);
2528d3bc
JH
413 if (addrlen == sizeof(addr) || addrlen == 4)
414 addr.s_addr =
415 (ip_address[0] & 0xFF) << 24 |
416 (ip_address[1] & 0xFF) << 16 |
417 (ip_address[2] & 0xFF) << 8 |
418 (ip_address[3] & 0xFF);
419 else
420 croak("Bad arg length for %s, length is %d, should be %d",
421 "Socket::pack_sockaddr_in",
422 addrlen, sizeof(addr));
8e07c86e 423 Zero( &sin, sizeof sin, char );
4633a7c4 424 sin.sin_family = AF_INET;
8e07c86e 425 sin.sin_port = htons(port);
2528d3bc 426 sin.sin_addr.s_addr = htonl(addr.s_addr);
5897b17c
PLE
427# ifdef HAS_SOCKADDR_SA_LEN
428 sin.sin_len = sizeof (sin);
429# endif
d3d34884 430 ST(0) = newSVpvn_flags((char *)&sin, sizeof (sin), SVs_TEMP);
8e07c86e
AD
431 }
432
433void
434unpack_sockaddr_in(sin_sv)
435 SV * sin_sv
436 PPCODE:
437 {
438 STRLEN sockaddrlen;
439 struct sockaddr_in addr;
2c129a17 440 unsigned short port;
2528d3bc 441 struct in_addr ip_address;
f780604f 442 char * sin = SvPVbyte(sin_sv,sockaddrlen);
8e07c86e
AD
443 if (sockaddrlen != sizeof(addr)) {
444 croak("Bad arg length for %s, length is %d, should be %d",
445 "Socket::unpack_sockaddr_in",
446 sockaddrlen, sizeof(addr));
447 }
8e07c86e 448 Copy( sin, &addr,sizeof addr, char );
4633a7c4
LW
449 if ( addr.sin_family != AF_INET ) {
450 croak("Bad address family for %s, got %d, should be %d",
451 "Socket::unpack_sockaddr_in",
452 addr.sin_family,
453 AF_INET);
a062834f 454 }
8e07c86e
AD
455 port = ntohs(addr.sin_port);
456 ip_address = addr.sin_addr;
457
924508f0 458 EXTEND(SP, 2);
2c129a17 459 PUSHs(sv_2mortal(newSViv((IV) port)));
d3d34884 460 PUSHs(newSVpvn_flags((char *)&ip_address, sizeof(ip_address), SVs_TEMP));
8e07c86e 461 }
036d8bd4
SP
462
463void
9987e04d
PLE
464pack_sockaddr_in6(port, sin6_addr, scope_id=0, flowinfo=0)
465 unsigned short port
466 SV * sin6_addr
467 unsigned long scope_id
468 unsigned long flowinfo
469 CODE:
470 {
471#ifdef AF_INET6
472 struct sockaddr_in6 sin6;
473 char * addrbytes;
474 STRLEN addrlen;
475 if (DO_UTF8(sin6_addr) && !sv_utf8_downgrade(sin6_addr, 1))
476 croak("Wide character in %s", "Socket::pack_sockaddr_in6");
477 addrbytes = SvPVbyte(sin6_addr, addrlen);
478 if(addrlen != sizeof(sin6.sin6_addr))
479 croak("Bad arg length %s, length is %d, should be %d",
480 "Socket::pack_sockaddr_in6", addrlen, sizeof(sin6.sin6_addr));
481 Zero(&sin6, sizeof(sin6), char);
482 sin6.sin6_family = AF_INET6;
483 sin6.sin6_port = htons(port);
484 sin6.sin6_flowinfo = htonl(flowinfo);
485 Copy(addrbytes, &sin6.sin6_addr, sizeof(sin6.sin6_addr), char);
8b079db6 486#if !defined(__GLIBC__) || (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)
9987e04d 487 sin6.sin6_scope_id = scope_id;
8b079db6 488#endif
5897b17c
PLE
489# ifdef HAS_SOCKADDR_SA_LEN
490 sin6.sin6_len = sizeof(sin6);
491# endif
9987e04d
PLE
492 ST(0) = newSVpvn_flags((char *)&sin6, sizeof(sin6), SVs_TEMP);
493#else
494 ST(0) = (SV*)not_here("pack_sockaddr_in6");
495#endif
496 }
497
498void
499unpack_sockaddr_in6(sin6_sv)
500 SV * sin6_sv
501 PPCODE:
502 {
503#ifdef AF_INET6
504 STRLEN addrlen;
505 struct sockaddr_in6 sin6;
506 char * addrbytes = SvPVbyte(sin6_sv, addrlen);
507 if (addrlen != sizeof(sin6))
508 croak("Bad arg length for %s, length is %d, should be %d",
509 "Socket::unpack_sockaddr_in6",
510 addrlen, sizeof(sin6));
511 Copy(addrbytes, &sin6, sizeof(sin6), char);
512 if(sin6.sin6_family != AF_INET6)
513 croak("Bad address family for %s, got %d, should be %d",
514 "Socket::unpack_sockaddr_in6",
515 sin6.sin6_family, AF_INET6);
516 EXTEND(SP, 4);
517 mPUSHi(ntohs(sin6.sin6_port));
518 mPUSHp((char *)&sin6.sin6_addr, sizeof(sin6.sin6_addr));
8b079db6 519#if !defined(__GLIBC__) || (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)
9987e04d 520 mPUSHi(sin6.sin6_scope_id);
8b079db6
DL
521#else
522 mPUSHi(0);
523#endif
9987e04d
PLE
524 mPUSHi(ntohl(sin6.sin6_flowinfo));
525#else
526 ST(0) = (SV*)not_here("pack_sockaddr_in6");
527#endif
528 }
529
530void
036d8bd4
SP
531inet_ntop(af, ip_address_sv)
532 int af
533 SV * ip_address_sv
534 CODE:
535#ifdef HAS_INETNTOP
536 STRLEN addrlen, struct_size;
a5addb16 537#ifdef AF_INET6
036d8bd4
SP
538 struct in6_addr addr;
539 char str[INET6_ADDRSTRLEN];
a5addb16
PG
540#else
541 struct in_addr addr;
542 char str[INET_ADDRSTRLEN];
543#endif
036d8bd4
SP
544 char *ip_address = SvPV(ip_address_sv, addrlen);
545
a5addb16
PG
546 struct_size = sizeof(addr);
547
548 if(af != AF_INET
549#ifdef AF_INET6
550 && af != AF_INET6
551#endif
552 ) {
553 croak("Bad address family for %s, got %d, should be"
554#ifdef AF_INET6
555 " either AF_INET or AF_INET6",
556#else
557 " AF_INET",
558#endif
bc354c70 559 "Socket::inet_ntop",
036d8bd4
SP
560 af);
561 }
562
563 Copy( ip_address, &addr, sizeof addr, char );
a5addb16 564 inet_ntop(af, &addr, str, sizeof str);
036d8bd4 565
d3d34884 566 ST(0) = newSVpvn_flags(str, strlen(str), SVs_TEMP);
036d8bd4
SP
567#else
568 ST(0) = (SV *)not_here("inet_ntop");
569#endif
570
571void
572inet_pton(af, host)
573 int af
574 const char * host
575 CODE:
576#ifdef HAS_INETPTON
5a8cf367 577 int ok;
a5addb16
PG
578#ifdef AF_INET6
579 struct in6_addr ip_address;
580#else
581 struct in_addr ip_address;
582#endif
583
584 if(af != AF_INET
585#ifdef AF_INET6
586 && af != AF_INET6
587#endif
588 ) {
589 croak("Bad address family for %s, got %d, should be"
590#ifdef AF_INET6
591 " either AF_INET or AF_INET6",
592#else
593 " AF_INET",
594#endif
036d8bd4
SP
595 "Socket::inet_pton",
596 af);
597 }
5a8cf367 598 ok = (*host != '\0') && inet_pton(af, host, &ip_address);
036d8bd4
SP
599
600 ST(0) = sv_newmortal();
601 if (ok) {
a5addb16 602 sv_setpvn( ST(0), (char *)&ip_address, sizeof(ip_address) );
036d8bd4
SP
603 }
604#else
605 ST(0) = (SV *)not_here("inet_pton");
606#endif