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>
29 # include <netinet/in.h>
35 # include <arpa/inet.h>
38 # include <netinet/tcp.h>
41 # include "sockadapt.h"
46 NETINET_DEFINE_CONTEXT
62 # define INADDR_NONE 0xffffffff
63 #endif /* INADDR_NONE */
64 #ifndef INADDR_BROADCAST
65 # define INADDR_BROADCAST 0xffffffff
66 #endif /* INADDR_BROADCAST */
67 #ifndef INADDR_LOOPBACK
68 # define INADDR_LOOPBACK 0x7F000001
69 #endif /* INADDR_LOOPBACK */
74 * Check whether "cp" is a valid ascii representation
75 * of an Internet address and convert to a binary address.
76 * Returns 1 if the address is valid, 0 if not.
77 * This replaces inet_addr, the return value from which
78 * cannot distinguish between failure and a local broadcast address.
81 my_inet_aton(register const char *cp, struct in_addr *addr)
89 unsigned int parts[4];
90 register unsigned int *pp = parts;
96 * Collect number up to ``.''.
97 * Values are specified as for C:
98 * 0x=hex, 0=octal, other=decimal.
102 if (*++cp == 'x' || *cp == 'X')
107 while ((c = *cp) != '\0') {
109 val = (val * base) + (c - '0');
113 if (base == 16 && (s=strchr(PL_hexdigit,c))) {
115 ((s - PL_hexdigit) & 15);
125 * a.b.c (with c treated as 16-bits)
126 * a.b (with b treated as 24 bits)
128 if (pp >= parts + 3 || val > 0xff)
135 * Check for trailing characters.
137 if (*cp && !isSPACE(*cp))
140 * Concoct the address according to
141 * the number of parts specified.
143 nparts = pp - parts + 1; /* force to an int for switch() */
146 case 1: /* a -- 32 bits */
149 case 2: /* a.b -- 8.24 bits */
152 val |= parts[0] << 24;
155 case 3: /* a.b.c -- 8.8.16 bits */
158 val |= (parts[0] << 24) | (parts[1] << 16);
161 case 4: /* a.b.c.d -- 8.8.8.8 bits */
164 val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8);
167 addr->s_addr = htonl(val);
172 #define inet_aton my_inet_aton
174 #endif /* ! HAS_INET_ATON */
180 croak("Socket::%s not implemented on this architecture", s);
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 #include "const-c.inc"
216 MODULE = Socket PACKAGE = Socket
218 INCLUDE: const-xs.inc
225 struct in_addr ip_address;
226 struct hostent * phe;
230 inet_aton(host, &ip_address);
232 if (!ok && (phe = gethostbyname(host))) {
233 Copy( phe->h_addr, &ip_address, phe->h_length, char );
237 ST(0) = sv_newmortal();
239 sv_setpvn( ST(0), (char *)&ip_address, sizeof ip_address );
243 inet_ntoa(ip_address_sv)
251 if (DO_UTF8(ip_address_sv) && !sv_utf8_downgrade(ip_address_sv, 1))
252 croak("Wide character in Socket::inet_ntoa");
253 ip_address = SvPVbyte(ip_address_sv, addrlen);
254 if (addrlen == sizeof(addr) || addrlen == 4)
256 (ip_address[0] & 0xFF) << 24 |
257 (ip_address[1] & 0xFF) << 16 |
258 (ip_address[2] & 0xFF) << 8 |
259 (ip_address[3] & 0xFF);
261 croak("Bad arg length for %s, length is %d, should be %d",
263 addrlen, sizeof(addr));
264 /* We could use inet_ntoa() but that is broken
265 * in HP-UX + GCC + 64bitint (returns "0.0.0.0"),
266 * so let's use this sprintf() workaround everywhere.
267 * This is also more threadsafe than using inet_ntoa(). */
268 New(1138, addr_str, 4 * 3 + 3 + 1, char); /* IPv6? */
269 sprintf(addr_str, "%d.%d.%d.%d",
270 ((addr.s_addr >> 24) & 0xFF),
271 ((addr.s_addr >> 16) & 0xFF),
272 ((addr.s_addr >> 8) & 0xFF),
273 ( addr.s_addr & 0xFF));
274 ST(0) = sv_2mortal(newSVpvn(addr_str, strlen(addr_str)));
279 sockaddr_family(sockaddr)
283 char *sockaddr_pv = SvPVbyte(sockaddr, sockaddr_len);
285 if (sockaddr_len < offsetof(struct sockaddr, sa_data)) {
286 croak("Bad arg length for %s, length is %d, should be at least %d",
287 "Socket::sockaddr_family", sockaddr_len,
288 offsetof(struct sockaddr, sa_data));
290 ST(0) = sv_2mortal(newSViv(((struct sockaddr*)sockaddr_pv)->sa_family));
293 pack_sockaddr_un(pathname)
298 struct sockaddr_un sun_ad; /* fear using sun */
301 Zero( &sun_ad, sizeof sun_ad, char );
302 sun_ad.sun_family = AF_UNIX;
303 len = strlen(pathname);
304 if (len > sizeof(sun_ad.sun_path))
305 len = sizeof(sun_ad.sun_path);
306 # ifdef OS2 /* Name should start with \socket\ and contain backslashes! */
311 if (pathname[0] != '/' && pathname[0] != '\\')
312 croak("Relative UNIX domain socket name '%s' unsupported", pathname);
314 || pathname[7] != '/' && pathname[7] != '\\'
315 || !strnicmp(pathname + 1, "socket", 6))
318 off = 0; /* Preserve names starting with \socket\ */
319 Copy( "\\socket", sun_ad.sun_path, off, char);
320 Copy( pathname, sun_ad.sun_path + off, len, char );
322 s = sun_ad.sun_path + off - 1;
328 # else /* !( defined OS2 ) */
329 Copy( pathname, sun_ad.sun_path, len, char );
331 if (0) not_here("dummy");
332 ST(0) = sv_2mortal(newSVpvn((char *)&sun_ad, sizeof sun_ad));
334 ST(0) = (SV *) not_here("pack_sockaddr_un");
340 unpack_sockaddr_un(sun_sv)
345 struct sockaddr_un addr;
347 char * sun_ad = SvPVbyte(sun_sv,sockaddrlen);
350 /* On Linux sockaddrlen on sockets returned by accept, recvfrom,
351 getpeername and getsockname is not equal to sizeof(addr). */
352 if (sockaddrlen != sizeof(addr)) {
353 croak("Bad arg length for %s, length is %d, should be %d",
354 "Socket::unpack_sockaddr_un",
355 sockaddrlen, sizeof(addr));
359 Copy( sun_ad, &addr, sizeof addr, char );
361 if ( addr.sun_family != AF_UNIX ) {
362 croak("Bad address family for %s, got %d, should be %d",
363 "Socket::unpack_sockaddr_un",
368 while (*e && e < addr.sun_path + sizeof addr.sun_path)
370 ST(0) = sv_2mortal(newSVpvn(addr.sun_path, e - addr.sun_path));
372 ST(0) = (SV *) not_here("unpack_sockaddr_un");
377 pack_sockaddr_in(port, ip_address_sv)
382 struct sockaddr_in sin;
386 if (DO_UTF8(ip_address_sv) && !sv_utf8_downgrade(ip_address_sv, 1))
387 croak("Wide character in Socket::pack_sockaddr_in");
388 ip_address = SvPVbyte(ip_address_sv, addrlen);
389 if (addrlen == sizeof(addr) || addrlen == 4)
391 (ip_address[0] & 0xFF) << 24 |
392 (ip_address[1] & 0xFF) << 16 |
393 (ip_address[2] & 0xFF) << 8 |
394 (ip_address[3] & 0xFF);
396 croak("Bad arg length for %s, length is %d, should be %d",
397 "Socket::pack_sockaddr_in",
398 addrlen, sizeof(addr));
399 Zero( &sin, sizeof sin, char );
400 sin.sin_family = AF_INET;
401 sin.sin_port = htons(port);
402 sin.sin_addr.s_addr = htonl(addr.s_addr);
403 ST(0) = sv_2mortal(newSVpvn((char *)&sin, sizeof sin));
407 unpack_sockaddr_in(sin_sv)
412 struct sockaddr_in addr;
414 struct in_addr ip_address;
415 char * sin = SvPVbyte(sin_sv,sockaddrlen);
416 if (sockaddrlen != sizeof(addr)) {
417 croak("Bad arg length for %s, length is %d, should be %d",
418 "Socket::unpack_sockaddr_in",
419 sockaddrlen, sizeof(addr));
421 Copy( sin, &addr,sizeof addr, char );
422 if ( addr.sin_family != AF_INET ) {
423 croak("Bad address family for %s, got %d, should be %d",
424 "Socket::unpack_sockaddr_in",
428 port = ntohs(addr.sin_port);
429 ip_address = addr.sin_addr;
432 PUSHs(sv_2mortal(newSViv((IV) port)));
433 PUSHs(sv_2mortal(newSVpvn((char *)&ip_address, sizeof ip_address)));