1 #define PERL_NO_GET_CONTEXT
10 # include <sys/types.h>
12 # if !defined(ultrix) /* Avoid double definition. */
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
33 # if defined(I_NETINET_IN) || defined(__ultrix__)
34 # include <netinet/in.h>
37 # if !defined(ultrix) /* Avoid double definition. */
42 # include <arpa/inet.h>
45 # include <netinet/tcp.h>
48 # include "sockadapt.h"
53 NETINET_DEFINE_CONTEXT
69 # define INADDR_NONE 0xffffffff
70 #endif /* INADDR_NONE */
71 #ifndef INADDR_BROADCAST
72 # define INADDR_BROADCAST 0xffffffff
73 #endif /* INADDR_BROADCAST */
74 #ifndef INADDR_LOOPBACK
75 # define INADDR_LOOPBACK 0x7F000001
76 #endif /* INADDR_LOOPBACK */
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.
88 my_inet_aton(register const char *cp, struct in_addr *addr)
96 unsigned int parts[4];
97 register unsigned int *pp = parts;
103 * Collect number up to ``.''.
104 * Values are specified as for C:
105 * 0x=hex, 0=octal, other=decimal.
109 if (*++cp == 'x' || *cp == 'X')
114 while ((c = *cp) != '\0') {
116 val = (val * base) + (c - '0');
120 if (base == 16 && (s=strchr(PL_hexdigit,c))) {
122 ((s - PL_hexdigit) & 15);
132 * a.b.c (with c treated as 16-bits)
133 * a.b (with b treated as 24 bits)
135 if (pp >= parts + 3 || val > 0xff)
142 * Check for trailing characters.
144 if (*cp && !isSPACE(*cp))
147 * Concoct the address according to
148 * the number of parts specified.
150 nparts = pp - parts + 1; /* force to an int for switch() */
153 case 1: /* a -- 32 bits */
156 case 2: /* a.b -- 8.24 bits */
159 val |= parts[0] << 24;
162 case 3: /* a.b.c -- 8.8.16 bits */
165 val |= (parts[0] << 24) | (parts[1] << 16);
168 case 4: /* a.b.c.d -- 8.8.8.8 bits */
171 val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8);
174 addr->s_addr = htonl(val);
179 #define inet_aton my_inet_aton
181 #endif /* ! HAS_INET_ATON */
187 croak("Socket::%s not implemented on this architecture", s);
191 #define PERL_IN_ADDR_S_ADDR_SIZE 4
194 * Bad assumptions possible here.
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.
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.)
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
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.
221 #include "const-c.inc"
223 MODULE = Socket PACKAGE = Socket
225 INCLUDE: const-xs.inc
232 struct in_addr ip_address;
233 struct hostent * phe;
234 int ok = (*host != '\0') && inet_aton(host, &ip_address);
236 if (!ok && (phe = gethostbyname(host))) {
237 Copy( phe->h_addr, &ip_address, phe->h_length, char );
241 ST(0) = sv_newmortal();
243 sv_setpvn( ST(0), (char *)&ip_address, sizeof ip_address );
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 = SvPVbyte(ip_address_sv, addrlen);
258 if (addrlen == sizeof(addr) || addrlen == 4)
260 (ip_address[0] & 0xFF) << 24 |
261 (ip_address[1] & 0xFF) << 16 |
262 (ip_address[2] & 0xFF) << 8 |
263 (ip_address[3] & 0xFF);
265 croak("Bad arg length for %s, length is %d, should be %d",
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"),
270 * so let's use this sprintf() workaround everywhere.
271 * This is also more threadsafe than using inet_ntoa(). */
272 Newx(addr_str, 4 * 3 + 3 + 1, char); /* IPv6? */
273 sprintf(addr_str, "%d.%d.%d.%d",
274 ((addr.s_addr >> 24) & 0xFF),
275 ((addr.s_addr >> 16) & 0xFF),
276 ((addr.s_addr >> 8) & 0xFF),
277 ( addr.s_addr & 0xFF));
278 ST(0) = sv_2mortal(newSVpvn(addr_str, strlen(addr_str)));
283 sockaddr_family(sockaddr)
287 char *sockaddr_pv = SvPVbyte(sockaddr, sockaddr_len);
289 if (sockaddr_len < offsetof(struct sockaddr, sa_data)) {
290 croak("Bad arg length for %s, length is %d, should be at least %d",
291 "Socket::sockaddr_family", sockaddr_len,
292 offsetof(struct sockaddr, sa_data));
294 ST(0) = sv_2mortal(newSViv(((struct sockaddr*)sockaddr_pv)->sa_family));
297 pack_sockaddr_un(pathname)
302 struct sockaddr_un sun_ad; /* fear using sun */
306 Zero( &sun_ad, sizeof sun_ad, char );
307 sun_ad.sun_family = AF_UNIX;
308 pathname_pv = SvPV(pathname,len);
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_pv[0] != '/' && pathname_pv[0] != '\\')
317 croak("Relative UNIX domain socket name '%s' unsupported",
320 || pathname_pv[7] != '/' && pathname_pv[7] != '\\'
321 || !strnicmp(pathname_pv + 1, "socket", 6))
324 off = 0; /* Preserve names starting with \socket\ */
325 Copy( "\\socket", sun_ad.sun_path, off, char);
326 Copy( pathname_pv, sun_ad.sun_path + off, len, char );
328 s = sun_ad.sun_path + off - 1;
334 # else /* !( defined OS2 ) */
335 Copy( pathname_pv, sun_ad.sun_path, len, char );
337 if (0) not_here("dummy");
338 ST(0) = sv_2mortal(newSVpvn((char *)&sun_ad, sizeof sun_ad));
340 ST(0) = (SV *) not_here("pack_sockaddr_un");
346 unpack_sockaddr_un(sun_sv)
351 struct sockaddr_un addr;
353 char * sun_ad = SvPVbyte(sun_sv,sockaddrlen);
356 /* On Linux sockaddrlen on sockets returned by accept, recvfrom,
357 getpeername and getsockname is not equal to sizeof(addr). */
358 if (sockaddrlen != sizeof(addr)) {
359 croak("Bad arg length for %s, length is %d, should be %d",
360 "Socket::unpack_sockaddr_un",
361 sockaddrlen, sizeof(addr));
365 Copy( sun_ad, &addr, sizeof addr, char );
367 if ( addr.sun_family != AF_UNIX ) {
368 croak("Bad address family for %s, got %d, should be %d",
369 "Socket::unpack_sockaddr_un",
373 e = (char*)addr.sun_path;
374 /* On Linux, the name of abstract unix domain sockets begins
375 * with a '\0', so allow this. */
376 while ((*e || (e == addr.sun_path && e[1] && sockaddrlen > 1))
377 && e < (char*)addr.sun_path + sizeof addr.sun_path)
379 ST(0) = sv_2mortal(newSVpvn(addr.sun_path, e - (char*)addr.sun_path));
381 ST(0) = (SV *) not_here("unpack_sockaddr_un");
386 pack_sockaddr_in(port, ip_address_sv)
391 struct sockaddr_in sin;
395 if (DO_UTF8(ip_address_sv) && !sv_utf8_downgrade(ip_address_sv, 1))
396 croak("Wide character in Socket::pack_sockaddr_in");
397 ip_address = SvPVbyte(ip_address_sv, addrlen);
398 if (addrlen == sizeof(addr) || addrlen == 4)
400 (ip_address[0] & 0xFF) << 24 |
401 (ip_address[1] & 0xFF) << 16 |
402 (ip_address[2] & 0xFF) << 8 |
403 (ip_address[3] & 0xFF);
405 croak("Bad arg length for %s, length is %d, should be %d",
406 "Socket::pack_sockaddr_in",
407 addrlen, sizeof(addr));
408 Zero( &sin, sizeof sin, char );
409 sin.sin_family = AF_INET;
410 sin.sin_port = htons(port);
411 sin.sin_addr.s_addr = htonl(addr.s_addr);
412 ST(0) = sv_2mortal(newSVpvn((char *)&sin, sizeof sin));
416 unpack_sockaddr_in(sin_sv)
421 struct sockaddr_in addr;
423 struct in_addr ip_address;
424 char * sin = SvPVbyte(sin_sv,sockaddrlen);
425 if (sockaddrlen != sizeof(addr)) {
426 croak("Bad arg length for %s, length is %d, should be %d",
427 "Socket::unpack_sockaddr_in",
428 sockaddrlen, sizeof(addr));
430 Copy( sin, &addr,sizeof addr, char );
431 if ( addr.sin_family != AF_INET ) {
432 croak("Bad address family for %s, got %d, should be %d",
433 "Socket::unpack_sockaddr_in",
437 port = ntohs(addr.sin_port);
438 ip_address = addr.sin_addr;
441 PUSHs(sv_2mortal(newSViv((IV) port)));
442 PUSHs(sv_2mortal(newSVpvn((char *)&ip_address, sizeof ip_address)));