1 #define PERL_NO_GET_CONTEXT
10 # include <sys/types.h>
12 # include <sys/socket.h>
13 # if defined(USE_SOCKS) && defined(I_SOCKS)
17 # define PF_INET AF_INET
18 # define PF_UNIX AF_UNIX
24 /* XXX Configure test for <netinet/in_systm.h needed XXX */
25 # if defined(NeXT) || defined(__NeXT__)
26 # include <netinet/in_systm.h>
28 # if defined(__sgi) && !defined(AF_LINK) && defined(PF_LINK) && PF_LINK == AF_LNK
32 # include <netinet/in.h>
38 # include <arpa/inet.h>
41 # include <netinet/tcp.h>
44 # include "sockadapt.h"
49 NETINET_DEFINE_CONTEXT
65 # define INADDR_NONE 0xffffffff
66 #endif /* INADDR_NONE */
67 #ifndef INADDR_BROADCAST
68 # define INADDR_BROADCAST 0xffffffff
69 #endif /* INADDR_BROADCAST */
70 #ifndef INADDR_LOOPBACK
71 # define INADDR_LOOPBACK 0x7F000001
72 #endif /* INADDR_LOOPBACK */
77 * Check whether "cp" is a valid ascii representation
78 * of an Internet address and convert to a binary address.
79 * Returns 1 if the address is valid, 0 if not.
80 * This replaces inet_addr, the return value from which
81 * cannot distinguish between failure and a local broadcast address.
84 my_inet_aton(register const char *cp, struct in_addr *addr)
92 unsigned int parts[4];
93 register unsigned int *pp = parts;
99 * Collect number up to ``.''.
100 * Values are specified as for C:
101 * 0x=hex, 0=octal, other=decimal.
105 if (*++cp == 'x' || *cp == 'X')
110 while ((c = *cp) != '\0') {
112 val = (val * base) + (c - '0');
116 if (base == 16 && (s=strchr(PL_hexdigit,c))) {
118 ((s - PL_hexdigit) & 15);
128 * a.b.c (with c treated as 16-bits)
129 * a.b (with b treated as 24 bits)
131 if (pp >= parts + 3 || val > 0xff)
138 * Check for trailing characters.
140 if (*cp && !isSPACE(*cp))
143 * Concoct the address according to
144 * the number of parts specified.
146 nparts = pp - parts + 1; /* force to an int for switch() */
149 case 1: /* a -- 32 bits */
152 case 2: /* a.b -- 8.24 bits */
155 val |= parts[0] << 24;
158 case 3: /* a.b.c -- 8.8.16 bits */
161 val |= (parts[0] << 24) | (parts[1] << 16);
164 case 4: /* a.b.c.d -- 8.8.8.8 bits */
167 val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8);
170 addr->s_addr = htonl(val);
175 #define inet_aton my_inet_aton
177 #endif /* ! HAS_INET_ATON */
183 croak("Socket::%s not implemented on this architecture", s);
187 #define PERL_IN_ADDR_S_ADDR_SIZE 4
190 * Bad assumptions possible here.
192 * Bad Assumption 1: struct in_addr has no other fields
193 * than the s_addr (which is the field we care about
194 * in here, really). However, we can be fed either 4-byte
195 * addresses (from pack("N", ...), or va.b.c.d, or ...),
196 * or full struct in_addrs (from e.g. pack_sockaddr_in()),
197 * which may or may not be 4 bytes in size.
199 * Bad Assumption 2: the s_addr field is a simple type
200 * (such as an int, u_int32_t). It can be a bit field,
201 * in which case using & (address-of) on it or taking sizeof()
202 * wouldn't go over too well. (Those are not attempted
203 * now but in case someone thinks to change the below code
204 * to use addr.s_addr instead of addr, you have been warned.)
206 * Bad Assumption 3: the s_addr is the first field in
207 * an in_addr, or that its bytes are the first bytes in
210 * These bad assumptions are wrong in UNICOS which has
211 * struct in_addr { struct { u_long st_addr:32; } s_da };
212 * #define s_addr s_da.st_addr
213 * and u_long is 64 bits.
217 #include "const-c.inc"
219 MODULE = Socket PACKAGE = Socket
221 INCLUDE: const-xs.inc
228 struct in_addr ip_address;
229 struct hostent * phe;
233 inet_aton(host, &ip_address);
235 if (!ok && (phe = gethostbyname(host))) {
236 Copy( phe->h_addr, &ip_address, phe->h_length, char );
240 ST(0) = sv_newmortal();
242 sv_setpvn( ST(0), (char *)&ip_address, sizeof ip_address );
246 inet_ntoa(ip_address_sv)
254 if (DO_UTF8(ip_address_sv) && !sv_utf8_downgrade(ip_address_sv, 1))
255 croak("Wide character in Socket::inet_ntoa");
256 ip_address = SvPVbyte(ip_address_sv, addrlen);
257 if (addrlen == sizeof(addr) || addrlen == 4)
259 (ip_address[0] & 0xFF) << 24 |
260 (ip_address[1] & 0xFF) << 16 |
261 (ip_address[2] & 0xFF) << 8 |
262 (ip_address[3] & 0xFF);
264 croak("Bad arg length for %s, length is %d, should be %d",
266 addrlen, sizeof(addr));
267 /* We could use inet_ntoa() but that is broken
268 * in HP-UX + GCC + 64bitint (returns "0.0.0.0"),
269 * so let's use this sprintf() workaround everywhere.
270 * This is also more threadsafe than using inet_ntoa(). */
271 New(1138, addr_str, 4 * 3 + 3 + 1, char); /* IPv6? */
272 sprintf(addr_str, "%d.%d.%d.%d",
273 ((addr.s_addr >> 24) & 0xFF),
274 ((addr.s_addr >> 16) & 0xFF),
275 ((addr.s_addr >> 8) & 0xFF),
276 ( addr.s_addr & 0xFF));
277 ST(0) = sv_2mortal(newSVpvn(addr_str, strlen(addr_str)));
282 sockaddr_family(sockaddr)
286 char *sockaddr_pv = SvPVbyte(sockaddr, sockaddr_len);
288 if (sockaddr_len < offsetof(struct sockaddr, sa_data)) {
289 croak("Bad arg length for %s, length is %d, should be at least %d",
290 "Socket::sockaddr_family", sockaddr_len,
291 offsetof(struct sockaddr, sa_data));
293 ST(0) = sv_2mortal(newSViv(((struct sockaddr*)sockaddr_pv)->sa_family));
296 pack_sockaddr_un(pathname)
301 struct sockaddr_un sun_ad; /* fear using sun */
304 Zero( &sun_ad, sizeof sun_ad, char );
305 sun_ad.sun_family = AF_UNIX;
306 len = strlen(pathname);
307 if (len > sizeof(sun_ad.sun_path))
308 len = sizeof(sun_ad.sun_path);
309 # ifdef OS2 /* Name should start with \socket\ and contain backslashes! */
314 if (pathname[0] != '/' && pathname[0] != '\\')
315 croak("Relative UNIX domain socket name '%s' unsupported", pathname);
317 || pathname[7] != '/' && pathname[7] != '\\'
318 || !strnicmp(pathname + 1, "socket", 6))
321 off = 0; /* Preserve names starting with \socket\ */
322 Copy( "\\socket", sun_ad.sun_path, off, char);
323 Copy( pathname, sun_ad.sun_path + off, len, char );
325 s = sun_ad.sun_path + off - 1;
331 # else /* !( defined OS2 ) */
332 Copy( pathname, sun_ad.sun_path, len, char );
334 if (0) not_here("dummy");
335 ST(0) = sv_2mortal(newSVpvn((char *)&sun_ad, sizeof sun_ad));
337 ST(0) = (SV *) not_here("pack_sockaddr_un");
343 unpack_sockaddr_un(sun_sv)
348 struct sockaddr_un addr;
350 char * sun_ad = SvPVbyte(sun_sv,sockaddrlen);
353 /* On Linux sockaddrlen on sockets returned by accept, recvfrom,
354 getpeername and getsockname is not equal to sizeof(addr). */
355 if (sockaddrlen != sizeof(addr)) {
356 croak("Bad arg length for %s, length is %d, should be %d",
357 "Socket::unpack_sockaddr_un",
358 sockaddrlen, sizeof(addr));
362 Copy( sun_ad, &addr, sizeof addr, char );
364 if ( addr.sun_family != AF_UNIX ) {
365 croak("Bad address family for %s, got %d, should be %d",
366 "Socket::unpack_sockaddr_un",
371 while (*e && e < addr.sun_path + sizeof addr.sun_path)
373 ST(0) = sv_2mortal(newSVpvn(addr.sun_path, e - addr.sun_path));
375 ST(0) = (SV *) not_here("unpack_sockaddr_un");
380 pack_sockaddr_in(port, ip_address_sv)
385 struct sockaddr_in sin;
389 if (DO_UTF8(ip_address_sv) && !sv_utf8_downgrade(ip_address_sv, 1))
390 croak("Wide character in Socket::pack_sockaddr_in");
391 ip_address = SvPVbyte(ip_address_sv, addrlen);
392 if (addrlen == sizeof(addr) || addrlen == 4)
394 (ip_address[0] & 0xFF) << 24 |
395 (ip_address[1] & 0xFF) << 16 |
396 (ip_address[2] & 0xFF) << 8 |
397 (ip_address[3] & 0xFF);
399 croak("Bad arg length for %s, length is %d, should be %d",
400 "Socket::pack_sockaddr_in",
401 addrlen, sizeof(addr));
402 Zero( &sin, sizeof sin, char );
403 sin.sin_family = AF_INET;
404 sin.sin_port = htons(port);
405 sin.sin_addr.s_addr = htonl(addr.s_addr);
406 ST(0) = sv_2mortal(newSVpvn((char *)&sin, sizeof sin));
410 unpack_sockaddr_in(sin_sv)
415 struct sockaddr_in addr;
417 struct in_addr ip_address;
418 char * sin = SvPVbyte(sin_sv,sockaddrlen);
419 if (sockaddrlen != sizeof(addr)) {
420 croak("Bad arg length for %s, length is %d, should be %d",
421 "Socket::unpack_sockaddr_in",
422 sockaddrlen, sizeof(addr));
424 Copy( sin, &addr,sizeof addr, char );
425 if ( addr.sin_family != AF_INET ) {
426 croak("Bad address family for %s, got %d, should be %d",
427 "Socket::unpack_sockaddr_in",
431 port = ntohs(addr.sin_port);
432 ip_address = addr.sin_addr;
435 PUSHs(sv_2mortal(newSViv((IV) port)));
436 PUSHs(sv_2mortal(newSVpvn((char *)&ip_address, sizeof ip_address)));