1 #define PERL_NO_GET_CONTEXT
8 # include <sys/types.h>
10 # include <sys/socket.h>
11 # if defined(USE_SOCKS) && defined(I_SOCKS)
15 # define PF_INET AF_INET
16 # define PF_UNIX AF_UNIX
22 /* XXX Configure test for <netinet/in_systm.h needed XXX */
23 # if defined(NeXT) || defined(__NeXT__)
24 # include <netinet/in_systm.h>
27 # include <netinet/in.h>
33 # include <arpa/inet.h>
36 # include <netinet/tcp.h>
39 # include "sockadapt.h"
44 NETINET_DEFINE_CONTEXT
60 # define INADDR_NONE 0xffffffff
61 #endif /* INADDR_NONE */
62 #ifndef INADDR_BROADCAST
63 # define INADDR_BROADCAST 0xffffffff
64 #endif /* INADDR_BROADCAST */
65 #ifndef INADDR_LOOPBACK
66 # define INADDR_LOOPBACK 0x7F000001
67 #endif /* INADDR_LOOPBACK */
72 * Check whether "cp" is a valid ascii representation
73 * of an Internet address and convert to a binary address.
74 * Returns 1 if the address is valid, 0 if not.
75 * This replaces inet_addr, the return value from which
76 * cannot distinguish between failure and a local broadcast address.
79 my_inet_aton(register const char *cp, struct in_addr *addr)
87 unsigned int parts[4];
88 register unsigned int *pp = parts;
94 * Collect number up to ``.''.
95 * Values are specified as for C:
96 * 0x=hex, 0=octal, other=decimal.
100 if (*++cp == 'x' || *cp == 'X')
105 while ((c = *cp) != '\0') {
107 val = (val * base) + (c - '0');
111 if (base == 16 && (s=strchr(PL_hexdigit,c))) {
113 ((s - PL_hexdigit) & 15);
123 * a.b.c (with c treated as 16-bits)
124 * a.b (with b treated as 24 bits)
126 if (pp >= parts + 3 || val > 0xff)
133 * Check for trailing characters.
135 if (*cp && !isSPACE(*cp))
138 * Concoct the address according to
139 * the number of parts specified.
141 nparts = pp - parts + 1; /* force to an int for switch() */
144 case 1: /* a -- 32 bits */
147 case 2: /* a.b -- 8.24 bits */
150 val |= parts[0] << 24;
153 case 3: /* a.b.c -- 8.8.16 bits */
156 val |= (parts[0] << 24) | (parts[1] << 16);
159 case 4: /* a.b.c.d -- 8.8.8.8 bits */
162 val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8);
165 addr->s_addr = htonl(val);
170 #define inet_aton my_inet_aton
172 #endif /* ! HAS_INET_ATON */
178 croak("Socket::%s not implemented on this architecture", s);
182 #include "constants.c"
184 #define PERL_IN_ADDR_S_ADDR_SIZE 4
187 * Bad assumptions possible here.
189 * Bad Assumption 1: struct in_addr has no other fields
190 * than the s_addr (which is the field we care about
191 * in here, really). However, we can be fed either 4-byte
192 * addresses (from pack("N", ...), or va.b.c.d, or ...),
193 * or full struct in_addrs (from e.g. pack_sockaddr_in()),
194 * which may or may not be 4 bytes in size.
196 * Bad Assumption 2: the s_addr field is a simple type
197 * (such as an int, u_int32_t). It can be a bit field,
198 * in which case using & (address-of) on it or taking sizeof()
199 * wouldn't go over too well. (Those are not attempted
200 * now but in case someone thinks to change the below code
201 * to use addr.s_addr instead of addr, you have been warned.)
203 * Bad Assumption 3: the s_addr is the first field in
204 * an in_addr, or that its bytes are the first bytes in
207 * These bad assumptions are wrong in UNICOS which has
208 * struct in_addr { struct { u_long st_addr:32; } s_da };
209 * #define s_addr s_da.st_addr
210 * and u_long is 64 bits.
214 MODULE = Socket PACKAGE = Socket
216 INCLUDE: constants.xs
224 char saddr[PERL_IN_ADDR_S_ADDR_SIZE];
225 struct hostent * phe;
228 ok = inet_aton(host, &addr);
230 saddr[0] = (addr.s_addr >> 24) & 0xFF;
231 saddr[1] = (addr.s_addr >> 16) & 0xFF;
232 saddr[2] = (addr.s_addr >> 8) & 0xFF;
233 saddr[3] = (addr.s_addr ) & 0xFF;
235 else if (phe = gethostbyname(host)) {
236 Copy( phe->h_addr, saddr, phe->h_length, char );
240 ST(0) = sv_newmortal();
242 sv_setpvn( ST(0), saddr, PERL_IN_ADDR_S_ADDR_SIZE);
247 inet_ntoa(ip_address_sv)
255 if (DO_UTF8(ip_address_sv) && !sv_utf8_downgrade(ip_address_sv, 1))
256 croak("Wide character in Socket::inet_ntoa");
257 ip_address = SvPV(ip_address_sv, addrlen);
258 if (addrlen == PERL_IN_ADDR_S_ADDR_SIZE) {
259 /* It must be (better be) a network-order 32-bit integer.
260 * We can't use any fancy casting of ip_address to pointer ofn
261 * some type (int or long) and the dereferencing that sincen
262 * neither int not long is guaranteed to be 32 bits. */
263 addr.s_addr = (ip_address[0] & 0xFF) << 24;
264 addr.s_addr |= (ip_address[1] & 0xFF) << 16;
265 addr.s_addr |= (ip_address[2] & 0xFF) << 8;
266 addr.s_addr |= (ip_address[3] & 0xFF);
269 /* It could be a struct in_addr that is not 32 bits. */
271 if (addrlen == sizeof(addr))
272 /* This branch could be optimized away if we knew
273 * during compile time what size is struct in_addr.
274 * If it's four, the above code should have worked. */
275 Copy( ip_address, &addr, sizeof addr, char );
277 if (PERL_IN_ADDR_S_ADDR_SIZE == sizeof(addr))
278 croak("Bad arg length for %s, length is %d, should be %d",
280 addrlen, PERL_IN_ADDR_S_ADDR_SIZE);
282 croak("Bad arg length for %s, length is %d, should be %d or %d",
284 addrlen, PERL_IN_ADDR_S_ADDR_SIZE, sizeof(addr));
287 /* We could use inet_ntoa() but that is broken
288 * in HP-UX + GCC + 64bitint (returns "0.0.0.0"),
289 * so let's use this sprintf() workaround everywhere. */
290 New(1138, addr_str, 4 * 3 + 3 + 1, char);
291 sprintf(addr_str, "%d.%d.%d.%d",
292 ((addr.s_addr >> 24) & 0xFF),
293 ((addr.s_addr >> 16) & 0xFF),
294 ((addr.s_addr >> 8) & 0xFF),
295 ( addr.s_addr & 0xFF));
296 ST(0) = sv_2mortal(newSVpvn(addr_str, strlen(addr_str)));
301 pack_sockaddr_un(pathname)
306 struct sockaddr_un sun_ad; /* fear using sun */
309 Zero( &sun_ad, sizeof sun_ad, char );
310 sun_ad.sun_family = AF_UNIX;
311 len = strlen(pathname);
312 if (len > sizeof(sun_ad.sun_path))
313 len = sizeof(sun_ad.sun_path);
314 # ifdef OS2 /* Name should start with \socket\ and contain backslashes! */
319 if (pathname[0] != '/' && pathname[0] != '\\')
320 croak("Relative UNIX domain socket name '%s' unsupported", pathname);
322 || pathname[7] != '/' && pathname[7] != '\\'
323 || !strnicmp(pathname + 1, "socket", 6))
326 off = 0; /* Preserve names starting with \socket\ */
327 Copy( "\\socket", sun_ad.sun_path, off, char);
328 Copy( pathname, sun_ad.sun_path + off, len, char );
330 s = sun_ad.sun_path + off - 1;
336 # else /* !( defined OS2 ) */
337 Copy( pathname, sun_ad.sun_path, len, char );
339 if (0) not_here("dummy");
340 ST(0) = sv_2mortal(newSVpvn((char *)&sun_ad, sizeof sun_ad));
342 ST(0) = (SV *) not_here("pack_sockaddr_un");
348 unpack_sockaddr_un(sun_sv)
353 struct sockaddr_un addr;
355 char * sun_ad = SvPV(sun_sv,sockaddrlen);
358 /* On Linux sockaddrlen on sockets returned by accept, recvfrom,
359 getpeername and getsockname is not equal to sizeof(addr). */
360 if (sockaddrlen != sizeof(addr)) {
361 croak("Bad arg length for %s, length is %d, should be %d",
362 "Socket::unpack_sockaddr_un",
363 sockaddrlen, sizeof(addr));
367 Copy( sun_ad, &addr, sizeof addr, char );
369 if ( addr.sun_family != AF_UNIX ) {
370 croak("Bad address family for %s, got %d, should be %d",
371 "Socket::unpack_sockaddr_un",
376 while (*e && e < addr.sun_path + sizeof addr.sun_path)
378 ST(0) = sv_2mortal(newSVpvn(addr.sun_path, e - addr.sun_path));
380 ST(0) = (SV *) not_here("unpack_sockaddr_un");
385 pack_sockaddr_in(port,ip_address)
390 struct sockaddr_in sin;
392 Zero( &sin, sizeof sin, char );
393 sin.sin_family = AF_INET;
394 sin.sin_port = htons(port);
395 Copy( ip_address, &sin.sin_addr, sizeof sin.sin_addr, char );
397 ST(0) = sv_2mortal(newSVpvn((char *)&sin, sizeof sin));
401 unpack_sockaddr_in(sin_sv)
406 struct sockaddr_in addr;
408 struct in_addr ip_address;
409 char saddr[PERL_IN_ADDR_S_ADDR_SIZE];
410 char * sin = SvPV(sin_sv,sockaddrlen);
411 if (sockaddrlen != sizeof(addr)) {
412 croak("Bad arg length for %s, length is %d, should be %d",
413 "Socket::unpack_sockaddr_in",
414 sockaddrlen, sizeof(addr));
416 Copy( sin, &addr,sizeof addr, char );
417 if ( addr.sin_family != AF_INET ) {
418 croak("Bad address family for %s, got %d, should be %d",
419 "Socket::unpack_sockaddr_in",
423 port = ntohs(addr.sin_port);
424 ip_address = addr.sin_addr;
425 saddr[0] = (ip_address.s_addr >> 24) & 0xFF;
426 saddr[1] = (ip_address.s_addr >> 16) & 0xFF;
427 saddr[2] = (ip_address.s_addr >> 8) & 0xFF;
428 saddr[3] = (ip_address.s_addr ) & 0xFF;
431 PUSHs(sv_2mortal(newSViv((IV) port)));
432 PUSHs(sv_2mortal(newSVpvn(saddr, PERL_IN_ADDR_S_ADDR_SIZE)));