1 #define PERL_NO_GET_CONTEXT
10 # include <sys/types.h>
13 # include <sys/socket.h>
15 # if defined(USE_SOCKS) && defined(I_SOCKS)
19 # define PF_INET AF_INET
20 # define PF_UNIX AF_UNIX
26 /* XXX Configure test for <netinet/in_systm.h needed XXX */
27 # if defined(NeXT) || defined(__NeXT__)
28 # include <netinet/in_systm.h>
30 # if defined(__sgi) && !defined(AF_LINK) && defined(PF_LINK) && PF_LINK == AF_LNK
34 # include <netinet/in.h>
40 # include <arpa/inet.h>
43 # include <netinet/tcp.h>
46 # include "sockadapt.h"
51 NETINET_DEFINE_CONTEXT
67 # define INADDR_NONE 0xffffffff
68 #endif /* INADDR_NONE */
69 #ifndef INADDR_BROADCAST
70 # define INADDR_BROADCAST 0xffffffff
71 #endif /* INADDR_BROADCAST */
72 #ifndef INADDR_LOOPBACK
73 # define INADDR_LOOPBACK 0x7F000001
74 #endif /* INADDR_LOOPBACK */
79 * Check whether "cp" is a valid ascii representation
80 * of an Internet address and convert to a binary address.
81 * Returns 1 if the address is valid, 0 if not.
82 * This replaces inet_addr, the return value from which
83 * cannot distinguish between failure and a local broadcast address.
86 my_inet_aton(register const char *cp, struct in_addr *addr)
94 unsigned int parts[4];
95 register unsigned int *pp = parts;
101 * Collect number up to ``.''.
102 * Values are specified as for C:
103 * 0x=hex, 0=octal, other=decimal.
107 if (*++cp == 'x' || *cp == 'X')
112 while ((c = *cp) != '\0') {
114 val = (val * base) + (c - '0');
118 if (base == 16 && (s=strchr(PL_hexdigit,c))) {
120 ((s - PL_hexdigit) & 15);
130 * a.b.c (with c treated as 16-bits)
131 * a.b (with b treated as 24 bits)
133 if (pp >= parts + 3 || val > 0xff)
140 * Check for trailing characters.
142 if (*cp && !isSPACE(*cp))
145 * Concoct the address according to
146 * the number of parts specified.
148 nparts = pp - parts + 1; /* force to an int for switch() */
151 case 1: /* a -- 32 bits */
154 case 2: /* a.b -- 8.24 bits */
157 val |= parts[0] << 24;
160 case 3: /* a.b.c -- 8.8.16 bits */
163 val |= (parts[0] << 24) | (parts[1] << 16);
166 case 4: /* a.b.c.d -- 8.8.8.8 bits */
169 val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8);
172 addr->s_addr = htonl(val);
177 #define inet_aton my_inet_aton
179 #endif /* ! HAS_INET_ATON */
185 croak("Socket::%s not implemented on this architecture", s);
189 #define PERL_IN_ADDR_S_ADDR_SIZE 4
192 * Bad assumptions possible here.
194 * Bad Assumption 1: struct in_addr has no other fields
195 * than the s_addr (which is the field we care about
196 * in here, really). However, we can be fed either 4-byte
197 * addresses (from pack("N", ...), or va.b.c.d, or ...),
198 * or full struct in_addrs (from e.g. pack_sockaddr_in()),
199 * which may or may not be 4 bytes in size.
201 * Bad Assumption 2: the s_addr field is a simple type
202 * (such as an int, u_int32_t). It can be a bit field,
203 * in which case using & (address-of) on it or taking sizeof()
204 * wouldn't go over too well. (Those are not attempted
205 * now but in case someone thinks to change the below code
206 * to use addr.s_addr instead of addr, you have been warned.)
208 * Bad Assumption 3: the s_addr is the first field in
209 * an in_addr, or that its bytes are the first bytes in
212 * These bad assumptions are wrong in UNICOS which has
213 * struct in_addr { struct { u_long st_addr:32; } s_da };
214 * #define s_addr s_da.st_addr
215 * and u_long is 64 bits.
219 #include "const-c.inc"
221 MODULE = Socket PACKAGE = Socket
223 INCLUDE: const-xs.inc
230 struct in_addr ip_address;
231 struct hostent * phe;
235 inet_aton(host, &ip_address);
237 if (!ok && (phe = gethostbyname(host))) {
238 Copy( phe->h_addr, &ip_address, phe->h_length, char );
242 ST(0) = sv_newmortal();
244 sv_setpvn( ST(0), (char *)&ip_address, sizeof ip_address );
248 inet_ntoa(ip_address_sv)
256 if (DO_UTF8(ip_address_sv) && !sv_utf8_downgrade(ip_address_sv, 1))
257 croak("Wide character in Socket::inet_ntoa");
258 ip_address = SvPVbyte(ip_address_sv, addrlen);
259 if (addrlen == sizeof(addr) || addrlen == 4)
261 (ip_address[0] & 0xFF) << 24 |
262 (ip_address[1] & 0xFF) << 16 |
263 (ip_address[2] & 0xFF) << 8 |
264 (ip_address[3] & 0xFF);
266 croak("Bad arg length for %s, length is %d, should be %d",
268 addrlen, sizeof(addr));
269 /* We could use inet_ntoa() but that is broken
270 * in HP-UX + GCC + 64bitint (returns "0.0.0.0"),
271 * so let's use this sprintf() workaround everywhere.
272 * This is also more threadsafe than using inet_ntoa(). */
273 New(1138, addr_str, 4 * 3 + 3 + 1, char); /* IPv6? */
274 sprintf(addr_str, "%d.%d.%d.%d",
275 ((addr.s_addr >> 24) & 0xFF),
276 ((addr.s_addr >> 16) & 0xFF),
277 ((addr.s_addr >> 8) & 0xFF),
278 ( addr.s_addr & 0xFF));
279 ST(0) = sv_2mortal(newSVpvn(addr_str, strlen(addr_str)));
284 sockaddr_family(sockaddr)
288 char *sockaddr_pv = SvPVbyte(sockaddr, sockaddr_len);
290 if (sockaddr_len < offsetof(struct sockaddr, sa_data)) {
291 croak("Bad arg length for %s, length is %d, should be at least %d",
292 "Socket::sockaddr_family", sockaddr_len,
293 offsetof(struct sockaddr, sa_data));
295 ST(0) = sv_2mortal(newSViv(((struct sockaddr*)sockaddr_pv)->sa_family));
298 pack_sockaddr_un(pathname)
303 struct sockaddr_un sun_ad; /* fear using sun */
306 Zero( &sun_ad, sizeof sun_ad, char );
307 sun_ad.sun_family = AF_UNIX;
308 len = strlen(pathname);
309 if (len > sizeof(sun_ad.sun_path))
310 len = sizeof(sun_ad.sun_path);
311 # ifdef OS2 /* Name should start with \socket\ and contain backslashes! */
316 if (pathname[0] != '/' && pathname[0] != '\\')
317 croak("Relative UNIX domain socket name '%s' unsupported", pathname);
319 || pathname[7] != '/' && pathname[7] != '\\'
320 || !strnicmp(pathname + 1, "socket", 6))
323 off = 0; /* Preserve names starting with \socket\ */
324 Copy( "\\socket", sun_ad.sun_path, off, char);
325 Copy( pathname, sun_ad.sun_path + off, len, char );
327 s = sun_ad.sun_path + off - 1;
333 # else /* !( defined OS2 ) */
334 Copy( pathname, sun_ad.sun_path, len, char );
336 if (0) not_here("dummy");
337 ST(0) = sv_2mortal(newSVpvn((char *)&sun_ad, sizeof sun_ad));
339 ST(0) = (SV *) not_here("pack_sockaddr_un");
345 unpack_sockaddr_un(sun_sv)
350 struct sockaddr_un addr;
352 char * sun_ad = SvPVbyte(sun_sv,sockaddrlen);
355 /* On Linux sockaddrlen on sockets returned by accept, recvfrom,
356 getpeername and getsockname is not equal to sizeof(addr). */
357 if (sockaddrlen != sizeof(addr)) {
358 croak("Bad arg length for %s, length is %d, should be %d",
359 "Socket::unpack_sockaddr_un",
360 sockaddrlen, sizeof(addr));
364 Copy( sun_ad, &addr, sizeof addr, char );
366 if ( addr.sun_family != AF_UNIX ) {
367 croak("Bad address family for %s, got %d, should be %d",
368 "Socket::unpack_sockaddr_un",
373 while (*e && e < addr.sun_path + sizeof addr.sun_path)
375 ST(0) = sv_2mortal(newSVpvn(addr.sun_path, e - addr.sun_path));
377 ST(0) = (SV *) not_here("unpack_sockaddr_un");
382 pack_sockaddr_in(port, ip_address_sv)
387 struct sockaddr_in sin;
391 if (DO_UTF8(ip_address_sv) && !sv_utf8_downgrade(ip_address_sv, 1))
392 croak("Wide character in Socket::pack_sockaddr_in");
393 ip_address = SvPVbyte(ip_address_sv, addrlen);
394 if (addrlen == sizeof(addr) || addrlen == 4)
396 (ip_address[0] & 0xFF) << 24 |
397 (ip_address[1] & 0xFF) << 16 |
398 (ip_address[2] & 0xFF) << 8 |
399 (ip_address[3] & 0xFF);
401 croak("Bad arg length for %s, length is %d, should be %d",
402 "Socket::pack_sockaddr_in",
403 addrlen, sizeof(addr));
404 Zero( &sin, sizeof sin, char );
405 sin.sin_family = AF_INET;
406 sin.sin_port = htons(port);
407 sin.sin_addr.s_addr = htonl(addr.s_addr);
408 ST(0) = sv_2mortal(newSVpvn((char *)&sin, sizeof sin));
412 unpack_sockaddr_in(sin_sv)
417 struct sockaddr_in addr;
419 struct in_addr ip_address;
420 char * sin = SvPVbyte(sin_sv,sockaddrlen);
421 if (sockaddrlen != sizeof(addr)) {
422 croak("Bad arg length for %s, length is %d, should be %d",
423 "Socket::unpack_sockaddr_in",
424 sockaddrlen, sizeof(addr));
426 Copy( sin, &addr,sizeof addr, char );
427 if ( addr.sin_family != AF_INET ) {
428 croak("Bad address family for %s, got %d, should be %d",
429 "Socket::unpack_sockaddr_in",
433 port = ntohs(addr.sin_port);
434 ip_address = addr.sin_addr;
437 PUSHs(sv_2mortal(newSViv((IV) port)));
438 PUSHs(sv_2mortal(newSVpvn((char *)&ip_address, sizeof ip_address)));