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Clear up a documentation confusion noticed by Xiaoyun Wu
[perl5.git] / ext / Socket / Socket.xs
CommitLineData
c5be433b 1#define PERL_NO_GET_CONTEXT
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2#include "EXTERN.h"
3#include "perl.h"
4#include "XSUB.h"
5
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6#ifndef VMS
7# ifdef I_SYS_TYPES
8# include <sys/types.h>
9# endif
9cc6feab 10# include <sys/socket.h>
29209bc5 11# if defined(USE_SOCKS) && defined(I_SOCKS)
86959918 12# include <socks.h>
a062834f 13# endif
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JH
14# ifdef MPE
15# define PF_INET AF_INET
16# define PF_UNIX AF_UNIX
17# define SOCK_RAW 3
18# endif
19# ifdef I_SYS_UN
20# include <sys/un.h>
21# endif
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JH
22/* XXX Configure test for <netinet/in_systm.h needed XXX */
23# if defined(NeXT) || defined(__NeXT__)
24# include <netinet/in_systm.h>
25# endif
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26# ifdef I_NETINET_IN
27# include <netinet/in.h>
28# endif
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29# ifdef I_NETDB
30# include <netdb.h>
31# endif
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32# ifdef I_ARPA_INET
33# include <arpa/inet.h>
34# endif
35# ifdef I_NETINET_TCP
36# include <netinet/tcp.h>
37# endif
8e07c86e 38#else
9cc6feab 39# include "sockadapt.h"
8e07c86e 40#endif
a0d0e21e 41
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42#ifdef NETWARE
43NETDB_DEFINE_CONTEXT
44NETINET_DEFINE_CONTEXT
45#endif
46
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47#ifdef I_SYSUIO
48# include <sys/uio.h>
49#endif
50
a0d0e21e 51#ifndef AF_NBS
9cc6feab 52# undef PF_NBS
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53#endif
54
55#ifndef AF_X25
9cc6feab 56# undef PF_X25
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57#endif
58
8e07c86e 59#ifndef INADDR_NONE
9cc6feab 60# define INADDR_NONE 0xffffffff
8e07c86e 61#endif /* INADDR_NONE */
7e1af8bc 62#ifndef INADDR_BROADCAST
9cc6feab 63# define INADDR_BROADCAST 0xffffffff
7e1af8bc 64#endif /* INADDR_BROADCAST */
8e07c86e 65#ifndef INADDR_LOOPBACK
9cc6feab 66# define INADDR_LOOPBACK 0x7F000001
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67#endif /* INADDR_LOOPBACK */
68
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PP
69#ifndef HAS_INET_ATON
70
a062834f 71/*
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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.
77 */
78static int
f0f333f4 79my_inet_aton(register const char *cp, struct in_addr *addr)
7e1af8bc 80{
c5be433b 81 dTHX;
0caed002 82 register U32 val;
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PP
83 register int base;
84 register char c;
85 int nparts;
86 const char *s;
87 unsigned int parts[4];
88 register unsigned int *pp = parts;
89
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CS
90 if (!cp)
91 return 0;
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PP
92 for (;;) {
93 /*
94 * Collect number up to ``.''.
95 * Values are specified as for C:
96 * 0x=hex, 0=octal, other=decimal.
97 */
98 val = 0; base = 10;
99 if (*cp == '0') {
100 if (*++cp == 'x' || *cp == 'X')
101 base = 16, cp++;
102 else
103 base = 8;
104 }
105 while ((c = *cp) != '\0') {
106 if (isDIGIT(c)) {
107 val = (val * base) + (c - '0');
108 cp++;
109 continue;
110 }
3280af22 111 if (base == 16 && (s=strchr(PL_hexdigit,c))) {
a062834f 112 val = (val << 4) +
3280af22 113 ((s - PL_hexdigit) & 15);
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PP
114 cp++;
115 continue;
116 }
117 break;
118 }
119 if (*cp == '.') {
120 /*
121 * Internet format:
122 * a.b.c.d
123 * a.b.c (with c treated as 16-bits)
124 * a.b (with b treated as 24 bits)
125 */
126 if (pp >= parts + 3 || val > 0xff)
127 return 0;
128 *pp++ = val, cp++;
129 } else
130 break;
131 }
132 /*
133 * Check for trailing characters.
134 */
135 if (*cp && !isSPACE(*cp))
136 return 0;
137 /*
138 * Concoct the address according to
139 * the number of parts specified.
140 */
141 nparts = pp - parts + 1; /* force to an int for switch() */
142 switch (nparts) {
143
144 case 1: /* a -- 32 bits */
145 break;
146
147 case 2: /* a.b -- 8.24 bits */
148 if (val > 0xffffff)
149 return 0;
150 val |= parts[0] << 24;
151 break;
152
153 case 3: /* a.b.c -- 8.8.16 bits */
154 if (val > 0xffff)
155 return 0;
156 val |= (parts[0] << 24) | (parts[1] << 16);
157 break;
158
159 case 4: /* a.b.c.d -- 8.8.8.8 bits */
160 if (val > 0xff)
161 return 0;
162 val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8);
163 break;
164 }
165 addr->s_addr = htonl(val);
166 return 1;
167}
168
169#undef inet_aton
170#define inet_aton my_inet_aton
171
172#endif /* ! HAS_INET_ATON */
173
8e07c86e 174
a0d0e21e 175static int
f0f333f4 176not_here(char *s)
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177{
178 croak("Socket::%s not implemented on this architecture", s);
179 return -1;
180}
181
ee96af8f 182#include "constants.c"
8e07c86e 183
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184MODULE = Socket PACKAGE = Socket
185
ee96af8f 186INCLUDE: constants.xs
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187
188void
189inet_aton(host)
190 char * host
191 CODE:
192 {
193 struct in_addr ip_address;
194 struct hostent * phe;
ac9fe1c2 195 int ok = inet_aton(host, &ip_address);
8e07c86e 196
ac9fe1c2 197 if (!ok && (phe = gethostbyname(host))) {
8e07c86e 198 Copy( phe->h_addr, &ip_address, phe->h_length, char );
7e1af8bc 199 ok = 1;
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200 }
201
202 ST(0) = sv_newmortal();
7e1af8bc 203 if (ok) {
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204 sv_setpvn( ST(0), (char *)&ip_address, sizeof ip_address );
205 }
206 }
207
208void
209inet_ntoa(ip_address_sv)
210 SV * ip_address_sv
211 CODE:
212 {
213 STRLEN addrlen;
214 struct in_addr addr;
215 char * addr_str;
216 char * ip_address = SvPV(ip_address_sv,addrlen);
217 if (addrlen != sizeof(addr)) {
218 croak("Bad arg length for %s, length is %d, should be %d",
219 "Socket::inet_ntoa",
220 addrlen, sizeof(addr));
221 }
222
223 Copy( ip_address, &addr, sizeof addr, char );
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224#if defined(__hpux) && defined(__GNUC__) && defined(USE_64_BIT_INT)
225 /* GCC on HP_UX breaks the call to inet_ntoa, // sky*/
226 addr_str = (char *) malloc(16);
227 sprintf(addr_str, "%d.%d.%d.%d", ((addr.s_addr >> 24) & 0xFF) , ((addr.s_addr >> 16) & 0xFF), ((addr.s_addr >> 8) & 0xFF), (addr.s_addr & 0xFF));
228#else
8e07c86e 229 addr_str = inet_ntoa(addr);
df8513eb 230#endif
79cb57f6 231 ST(0) = sv_2mortal(newSVpvn(addr_str, strlen(addr_str)));
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232 }
233
234void
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235pack_sockaddr_un(pathname)
236 char * pathname
237 CODE:
238 {
25f94b33 239#ifdef I_SYS_UN
4633a7c4 240 struct sockaddr_un sun_ad; /* fear using sun */
fcdb74fc 241 STRLEN len;
202975e6 242
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243 Zero( &sun_ad, sizeof sun_ad, char );
244 sun_ad.sun_family = AF_UNIX;
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245 len = strlen(pathname);
246 if (len > sizeof(sun_ad.sun_path))
247 len = sizeof(sun_ad.sun_path);
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248# ifdef OS2 /* Name should start with \socket\ and contain backslashes! */
249 {
250 int off;
251 char *s, *e;
252
253 if (pathname[0] != '/' && pathname[0] != '\\')
254 croak("Relative UNIX domain socket name '%s' unsupported", pathname);
a062834f 255 else if (len < 8
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256 || pathname[7] != '/' && pathname[7] != '\\'
257 || !strnicmp(pathname + 1, "socket", 6))
258 off = 7;
259 else
260 off = 0; /* Preserve names starting with \socket\ */
261 Copy( "\\socket", sun_ad.sun_path, off, char);
262 Copy( pathname, sun_ad.sun_path + off, len, char );
263
264 s = sun_ad.sun_path + off - 1;
265 e = s + len + 1;
266 while (++s < e)
267 if (*s = '/')
268 *s = '\\';
269 }
a062834f 270# else /* !( defined OS2 ) */
20408e3c 271 Copy( pathname, sun_ad.sun_path, len, char );
202975e6 272# endif
a062834f 273 if (0) not_here("dummy");
79cb57f6 274 ST(0) = sv_2mortal(newSVpvn((char *)&sun_ad, sizeof sun_ad));
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275#else
276 ST(0) = (SV *) not_here("pack_sockaddr_un");
277#endif
278
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279 }
280
281void
282unpack_sockaddr_un(sun_sv)
283 SV * sun_sv
f13e1b2f 284 CODE:
4633a7c4 285 {
25f94b33 286#ifdef I_SYS_UN
4633a7c4 287 struct sockaddr_un addr;
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288 STRLEN sockaddrlen;
289 char * sun_ad = SvPV(sun_sv,sockaddrlen);
290 char * e;
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291# ifndef __linux__
292 /* On Linux sockaddrlen on sockets returned by accept, recvfrom,
293 getpeername and getsockname is not equal to sizeof(addr). */
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294 if (sockaddrlen != sizeof(addr)) {
295 croak("Bad arg length for %s, length is %d, should be %d",
296 "Socket::unpack_sockaddr_un",
297 sockaddrlen, sizeof(addr));
298 }
36902e12 299# endif
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300
301 Copy( sun_ad, &addr, sizeof addr, char );
302
303 if ( addr.sun_family != AF_UNIX ) {
304 croak("Bad address family for %s, got %d, should be %d",
305 "Socket::unpack_sockaddr_un",
306 addr.sun_family,
307 AF_UNIX);
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TB
308 }
309 e = addr.sun_path;
310 while (*e && e < addr.sun_path + sizeof addr.sun_path)
311 ++e;
79cb57f6 312 ST(0) = sv_2mortal(newSVpvn(addr.sun_path, e - addr.sun_path));
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313#else
314 ST(0) = (SV *) not_here("unpack_sockaddr_un");
315#endif
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316 }
317
318void
319pack_sockaddr_in(port,ip_address)
2c129a17 320 unsigned short port
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321 char * ip_address
322 CODE:
323 {
324 struct sockaddr_in sin;
325
326 Zero( &sin, sizeof sin, char );
4633a7c4 327 sin.sin_family = AF_INET;
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328 sin.sin_port = htons(port);
329 Copy( ip_address, &sin.sin_addr, sizeof sin.sin_addr, char );
330
79cb57f6 331 ST(0) = sv_2mortal(newSVpvn((char *)&sin, sizeof sin));
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332 }
333
334void
335unpack_sockaddr_in(sin_sv)
336 SV * sin_sv
337 PPCODE:
338 {
339 STRLEN sockaddrlen;
340 struct sockaddr_in addr;
2c129a17 341 unsigned short port;
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342 struct in_addr ip_address;
343 char * sin = SvPV(sin_sv,sockaddrlen);
344 if (sockaddrlen != sizeof(addr)) {
345 croak("Bad arg length for %s, length is %d, should be %d",
346 "Socket::unpack_sockaddr_in",
347 sockaddrlen, sizeof(addr));
348 }
8e07c86e 349 Copy( sin, &addr,sizeof addr, char );
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LW
350 if ( addr.sin_family != AF_INET ) {
351 croak("Bad address family for %s, got %d, should be %d",
352 "Socket::unpack_sockaddr_in",
353 addr.sin_family,
354 AF_INET);
a062834f 355 }
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AD
356 port = ntohs(addr.sin_port);
357 ip_address = addr.sin_addr;
358
924508f0 359 EXTEND(SP, 2);
2c129a17 360 PUSHs(sv_2mortal(newSViv((IV) port)));
79cb57f6 361 PUSHs(sv_2mortal(newSVpvn((char *)&ip_address,sizeof ip_address)));
8e07c86e 362 }