Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 1 | /*********************************************************** |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 2 | Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum, |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 3 | Amsterdam, The Netherlands. |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 4 | |
| 5 | All Rights Reserved |
| 6 | |
| 7 | Permission to use, copy, modify, and distribute this software and its |
| 8 | documentation for any purpose and without fee is hereby granted, |
| 9 | provided that the above copyright notice appear in all copies and that |
| 10 | both that copyright notice and this permission notice appear in |
| 11 | supporting documentation, and that the names of Stichting Mathematisch |
| 12 | Centrum or CWI not be used in advertising or publicity pertaining to |
| 13 | distribution of the software without specific, written prior permission. |
| 14 | |
| 15 | STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO |
| 16 | THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| 17 | FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE |
| 18 | FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 19 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 20 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT |
| 21 | OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 22 | |
| 23 | ******************************************************************/ |
| 24 | |
| 25 | /* Socket module */ |
| 26 | |
| 27 | /* |
| 28 | This module provides an interface to Berkeley socket IPC. |
| 29 | |
| 30 | Limitations: |
| 31 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 32 | - only AF_INET and AF_UNIX address families are supported |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 33 | - no asynchronous I/O (but you can use select() on sockets) |
Guido van Rossum | 8119447 | 1991-07-27 21:42:02 +0000 | [diff] [blame] | 34 | - no read/write operations (use send/recv or makefile instead) |
Guido van Rossum | 0e69587d | 1992-06-05 15:11:30 +0000 | [diff] [blame] | 35 | - setsockopt() and getsockopt() only support integer options |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 36 | |
| 37 | Interface: |
| 38 | |
Guido van Rossum | 8119447 | 1991-07-27 21:42:02 +0000 | [diff] [blame] | 39 | - socket.gethostname() --> host name (string) |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 40 | - socket.gethostbyname(hostname) --> host IP address (string: 'dd.dd.dd.dd') |
Guido van Rossum | 4dd2a7e | 1991-07-01 18:51:33 +0000 | [diff] [blame] | 41 | - socket.getservbyname(servername, protocolname) --> port number |
| 42 | - socket.socket(family, type [, proto]) --> new socket object |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 43 | - family and type constants from <socket.h> are accessed as socket.AF_INET etc. |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 44 | - errors are reported as the exception socket.error |
| 45 | - an Internet socket address is a pair (hostname, port) |
| 46 | where hostname can be anything recognized by gethostbyname() |
| 47 | (including the dd.dd.dd.dd notation) and port is in host byte order |
| 48 | - where a hostname is returned, the dd.dd.dd.dd notation is used |
| 49 | - a UNIX domain socket is a string specifying the pathname |
| 50 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 51 | Socket methods: |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 52 | |
Guido van Rossum | 8119447 | 1991-07-27 21:42:02 +0000 | [diff] [blame] | 53 | - s.accept() --> new socket object, sockaddr |
Guido van Rossum | 0e69587d | 1992-06-05 15:11:30 +0000 | [diff] [blame] | 54 | - s.setsockopt(level, optname, flag) --> None |
| 55 | - s.getsockopt(level, optname) --> flag |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 56 | - s.bind(sockaddr) --> None |
| 57 | - s.connect(sockaddr) --> None |
Guido van Rossum | c89705d | 1992-11-26 08:54:07 +0000 | [diff] [blame] | 58 | - s.getsockname() --> sockaddr |
| 59 | - s.getpeername() --> sockaddr |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 60 | - s.listen(n) --> None |
| 61 | - s.makefile(mode) --> file object |
Guido van Rossum | eb6b33a | 1993-05-25 09:38:27 +0000 | [diff] [blame] | 62 | - s.recv(nbytes [,flags]) --> string |
Guido van Rossum | 18c9a4f | 1993-05-25 12:16:29 +0000 | [diff] [blame] | 63 | - s.recvfrom(nbytes [,flags]) --> string, sockaddr |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 64 | - s.send(string [,flags]) --> nbytes |
| 65 | - s.sendto(string, [flags,] sockaddr) --> nbytes |
Guido van Rossum | e4485b0 | 1994-09-07 14:32:49 +0000 | [diff] [blame] | 66 | - s.setblocking(1 | 0) --> None |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 67 | - s.shutdown(how) --> None |
| 68 | - s.close() --> None |
| 69 | |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 70 | */ |
| 71 | |
| 72 | #include "allobjects.h" |
| 73 | #include "modsupport.h" |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 74 | #include "ceval.h" |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 75 | |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 76 | #include <sys/types.h> |
| 77 | #include "mytime.h" |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 78 | |
Guido van Rossum | 8119447 | 1991-07-27 21:42:02 +0000 | [diff] [blame] | 79 | #include <signal.h> |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 80 | #ifndef NT |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 81 | #include <netdb.h> |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 82 | #include <sys/socket.h> |
| 83 | #include <netinet/in.h> |
Guido van Rossum | e4485b0 | 1994-09-07 14:32:49 +0000 | [diff] [blame] | 84 | #include <fcntl.h> |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 85 | #else |
| 86 | #include <winsock.h> |
| 87 | #endif |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 88 | #ifdef HAVE_SYS_UN_H |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 89 | #include <sys/un.h> |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 90 | #else |
| 91 | #undef AF_UNIX |
Guido van Rossum | 9575a44 | 1993-04-07 14:06:14 +0000 | [diff] [blame] | 92 | #endif |
| 93 | |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 94 | /* Here we have some hacks to choose between K&R or ANSI style function |
| 95 | definitions. For NT to build this as an extension module (ie, DLL) |
| 96 | it must be compiled by the C++ compiler, as it takes the address of |
| 97 | a static data item exported from the main Python DLL. |
| 98 | */ |
| 99 | #ifdef NT |
| 100 | /* seem to be a few differences in the API */ |
| 101 | #define close closesocket |
| 102 | #define NO_DUP /* I wont trust passing a socket to NT's RTL!! */ |
| 103 | #define FORCE_ANSI_FUNC_DEFS |
| 104 | #endif |
| 105 | |
| 106 | #ifdef FORCE_ANSI_FUNC_DEFS |
| 107 | #define BUILD_FUNC_DEF_1( fnname, arg1type, arg1name ) \ |
| 108 | fnname( arg1type arg1name ) |
| 109 | |
| 110 | #define BUILD_FUNC_DEF_2( fnname, arg1type, arg1name, arg2type, arg2name ) \ |
| 111 | fnname( arg1type arg1name, arg2type arg2name ) |
| 112 | |
| 113 | #define BUILD_FUNC_DEF_3( fnname, arg1type, arg1name, arg2type, arg2name , arg3type, arg3name ) \ |
| 114 | fnname( arg1type arg1name, arg2type arg2name, arg3type arg3name ) |
| 115 | |
| 116 | #define BUILD_FUNC_DEF_4( fnname, arg1type, arg1name, arg2type, arg2name , arg3type, arg3name, arg4type, arg4name ) \ |
| 117 | fnname( arg1type arg1name, arg2type arg2name, arg3type arg3name, arg4type arg4name ) |
| 118 | |
| 119 | #else /* !FORCE_ANSI_FN_DEFS */ |
| 120 | #define BUILD_FUNC_DEF_1( fnname, arg1type, arg1name ) \ |
| 121 | fnname( arg1name ) \ |
| 122 | arg1type arg1name; |
| 123 | |
| 124 | #define BUILD_FUNC_DEF_2( fnname, arg1type, arg1name, arg2type, arg2name ) \ |
| 125 | fnname( arg1name, arg2name ) \ |
| 126 | arg1type arg1name; \ |
| 127 | arg2type arg2name; |
| 128 | |
| 129 | #define BUILD_FUNC_DEF_3( fnname, arg1type, arg1name, arg2type, arg2name, arg3type, arg3name ) \ |
| 130 | fnname( arg1name, arg2name, arg3name ) \ |
| 131 | arg1type arg1name; \ |
| 132 | arg2type arg2name; \ |
| 133 | arg3type arg3name; |
| 134 | |
| 135 | #define BUILD_FUNC_DEF_4( fnname, arg1type, arg1name, arg2type, arg2name, arg3type, arg3name, arg4type, arg4name ) \ |
| 136 | fnname( arg1name, arg2name, arg3name, arg4name ) \ |
| 137 | arg1type arg1name; \ |
| 138 | arg2type arg2name; \ |
| 139 | arg3type arg3name; \ |
| 140 | arg4type arg4name; |
| 141 | |
| 142 | #endif /* !FORCE_ANSI_FN_DEFS */ |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 143 | |
| 144 | /* Global variable holding the exception type for errors detected |
| 145 | by this module (but not argument type or memory errors, etc.). */ |
| 146 | |
| 147 | static object *SocketError; |
| 148 | |
| 149 | |
| 150 | /* Convenience function to raise an error according to errno |
| 151 | and return a NULL pointer from a function. */ |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 152 | |
| 153 | static object * |
| 154 | socket_error() |
| 155 | { |
Guido van Rossum | 14ed0b2 | 1994-09-29 09:50:09 +0000 | [diff] [blame^] | 156 | #ifdef NT |
| 157 | if (WSAGetLastError()) { |
| 158 | object *v; |
| 159 | v = mkvalue("(is)", WSAGetLastError(), "winsock error"); |
| 160 | if (v != NULL) { |
| 161 | err_setval(SocketError, v); |
| 162 | DECREF(v); |
| 163 | } |
| 164 | return NULL; |
| 165 | } |
| 166 | else |
| 167 | #endif |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 168 | return err_errno(SocketError); |
| 169 | } |
| 170 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 171 | |
| 172 | /* The object holding a socket. It holds some extra information, |
| 173 | like the address family, which is used to decode socket address |
| 174 | arguments properly. */ |
| 175 | |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 176 | typedef struct { |
| 177 | OB_HEAD |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 178 | int sock_fd; /* Socket file descriptor */ |
| 179 | int sock_family; /* Address family, e.g., AF_INET */ |
| 180 | int sock_type; /* Socket type, e.g., SOCK_STREAM */ |
| 181 | int sock_proto; /* Protocol type, usually 0 */ |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 182 | } sockobject; |
| 183 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 184 | |
| 185 | /* A forward reference to the Socktype type object. |
| 186 | The Socktype variable contains pointers to various functions, |
| 187 | some of which call newsocobject(), which uses Socktype, so |
Guido van Rossum | 54ba21b | 1991-09-10 14:57:12 +0000 | [diff] [blame] | 188 | there has to be a circular reference. */ |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 189 | |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 190 | staticforward typeobject Socktype; |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 191 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 192 | |
| 193 | /* Create a new socket object. |
| 194 | This just creates the object and initializes it. |
| 195 | If the creation fails, return NULL and set an exception (implicit |
| 196 | in NEWOBJ()). */ |
| 197 | |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 198 | static sockobject * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 199 | BUILD_FUNC_DEF_4(newsockobject, int, fd, int, family, int, type, int, proto) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 200 | { |
| 201 | sockobject *s; |
| 202 | s = NEWOBJ(sockobject, &Socktype); |
| 203 | if (s != NULL) { |
| 204 | s->sock_fd = fd; |
| 205 | s->sock_family = family; |
| 206 | s->sock_type = type; |
| 207 | s->sock_proto = proto; |
| 208 | } |
| 209 | return s; |
| 210 | } |
| 211 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 212 | |
| 213 | /* Convert a string specifying a host name or one of a few symbolic |
| 214 | names to a numeric IP address. This usually calls gethostbyname() |
| 215 | to do the work; the names "" and "<broadcast>" are special. |
| 216 | Return the length (should always be 4 bytes), or negative if |
| 217 | an error occurred; then an exception is raised. */ |
| 218 | |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 219 | static int |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 220 | BUILD_FUNC_DEF_2(setipaddr, char*, name, struct sockaddr_in *, addr_ret) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 221 | { |
| 222 | struct hostent *hp; |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 223 | int d1, d2, d3, d4; |
| 224 | char ch; |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 225 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 226 | if (name[0] == '\0') { |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 227 | addr_ret->sin_addr.s_addr = INADDR_ANY; |
| 228 | return 4; |
| 229 | } |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 230 | if (name[0] == '<' && strcmp(name, "<broadcast>") == 0) { |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 231 | addr_ret->sin_addr.s_addr = INADDR_BROADCAST; |
| 232 | return 4; |
| 233 | } |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 234 | if (sscanf(name, "%d.%d.%d.%d%c", &d1, &d2, &d3, &d4, &ch) == 4 && |
| 235 | 0 <= d1 && d1 <= 255 && 0 <= d2 && d2 <= 255 && |
| 236 | 0 <= d3 && d3 <= 255 && 0 <= d4 && d4 <= 255) { |
| 237 | addr_ret->sin_addr.s_addr = htonl( |
| 238 | ((long) d1 << 24) | ((long) d2 << 16) | |
| 239 | ((long) d3 << 8) | ((long) d4 << 0)); |
| 240 | return 4; |
| 241 | } |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 242 | BGN_SAVE |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 243 | hp = gethostbyname(name); |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 244 | END_SAVE |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 245 | if (hp == NULL) { |
| 246 | err_setstr(SocketError, "host not found"); |
| 247 | return -1; |
| 248 | } |
| 249 | memcpy((char *) &addr_ret->sin_addr, hp->h_addr, hp->h_length); |
| 250 | return hp->h_length; |
| 251 | } |
| 252 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 253 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 254 | /* Create a string object representing an IP address. |
| 255 | This is always a string of the form 'dd.dd.dd.dd' (with variable |
| 256 | size numbers). */ |
| 257 | |
| 258 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 259 | BUILD_FUNC_DEF_1(makeipaddr, struct sockaddr_in *,addr) |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 260 | { |
| 261 | long x = ntohl(addr->sin_addr.s_addr); |
| 262 | char buf[100]; |
| 263 | sprintf(buf, "%d.%d.%d.%d", |
| 264 | (int) (x>>24) & 0xff, (int) (x>>16) & 0xff, |
| 265 | (int) (x>> 8) & 0xff, (int) (x>> 0) & 0xff); |
| 266 | return newstringobject(buf); |
| 267 | } |
| 268 | |
| 269 | |
| 270 | /* Create an object representing the given socket address, |
| 271 | suitable for passing it back to bind(), connect() etc. |
| 272 | The family field of the sockaddr structure is inspected |
| 273 | to determine what kind of address it really is. */ |
| 274 | |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 275 | /*ARGSUSED*/ |
| 276 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 277 | BUILD_FUNC_DEF_2(makesockaddr,struct sockaddr *, addr, int, addrlen) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 278 | { |
Guido van Rossum | 25bec8c | 1992-08-05 19:00:45 +0000 | [diff] [blame] | 279 | if (addrlen == 0) { |
| 280 | /* No address -- may be recvfrom() from known socket */ |
| 281 | INCREF(None); |
| 282 | return None; |
| 283 | } |
| 284 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 285 | switch (addr->sa_family) { |
| 286 | |
| 287 | case AF_INET: |
| 288 | { |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 289 | struct sockaddr_in *a = (struct sockaddr_in *) addr; |
Guido van Rossum | 6f5afc9 | 1993-02-05 09:46:15 +0000 | [diff] [blame] | 290 | object *addr = makeipaddr(a); |
| 291 | object *ret = mkvalue("Oi", addr, ntohs(a->sin_port)); |
| 292 | XDECREF(addr); |
| 293 | return ret; |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 294 | } |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 295 | |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 296 | #ifdef AF_UNIX |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 297 | case AF_UNIX: |
| 298 | { |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 299 | struct sockaddr_un *a = (struct sockaddr_un *) addr; |
| 300 | return newstringobject(a->sun_path); |
| 301 | } |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 302 | #endif /* AF_UNIX */ |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 303 | |
| 304 | /* More cases here... */ |
| 305 | |
| 306 | default: |
| 307 | err_setstr(SocketError, "return unknown socket address type"); |
| 308 | return NULL; |
Guido van Rossum | 25bec8c | 1992-08-05 19:00:45 +0000 | [diff] [blame] | 309 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 310 | } |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 311 | } |
| 312 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 313 | |
| 314 | /* Parse a socket address argument according to the socket object's |
| 315 | address family. Return 1 if the address was in the proper format, |
| 316 | 0 of not. The address is returned through addr_ret, its length |
| 317 | through len_ret. */ |
| 318 | |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 319 | static int |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 320 | BUILD_FUNC_DEF_4( |
| 321 | getsockaddrarg,sockobject *,s, object *,args, struct sockaddr **,addr_ret, int *,len_ret) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 322 | { |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 323 | switch (s->sock_family) { |
| 324 | |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 325 | #ifdef AF_UNIX |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 326 | case AF_UNIX: |
| 327 | { |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 328 | static struct sockaddr_un addr; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 329 | char *path; |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 330 | int len; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 331 | if (!getargs(args, "s#", &path, &len)) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 332 | return 0; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 333 | if (len > sizeof addr.sun_path) { |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 334 | err_setstr(SocketError, "AF_UNIX path too long"); |
| 335 | return 0; |
| 336 | } |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 337 | addr.sun_family = AF_UNIX; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 338 | memcpy(addr.sun_path, path, len); |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 339 | *addr_ret = (struct sockaddr *) &addr; |
| 340 | *len_ret = len + sizeof addr.sun_family; |
| 341 | return 1; |
| 342 | } |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 343 | #endif /* AF_UNIX */ |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 344 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 345 | case AF_INET: |
| 346 | { |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 347 | static struct sockaddr_in addr; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 348 | char *host; |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 349 | int port; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 350 | if (!getargs(args, "(si)", &host, &port)) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 351 | return 0; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 352 | if (setipaddr(host, &addr) < 0) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 353 | return 0; |
| 354 | addr.sin_family = AF_INET; |
| 355 | addr.sin_port = htons(port); |
| 356 | *addr_ret = (struct sockaddr *) &addr; |
| 357 | *len_ret = sizeof addr; |
| 358 | return 1; |
| 359 | } |
| 360 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 361 | /* More cases here... */ |
| 362 | |
| 363 | default: |
| 364 | err_setstr(SocketError, "getsockaddrarg: bad family"); |
| 365 | return 0; |
| 366 | |
| 367 | } |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 368 | } |
| 369 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 370 | |
Guido van Rossum | 710e1df | 1992-06-12 10:39:36 +0000 | [diff] [blame] | 371 | /* Get the address length according to the socket object's address family. |
| 372 | Return 1 if the family is known, 0 otherwise. The length is returned |
| 373 | through len_ret. */ |
| 374 | |
| 375 | static int |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 376 | BUILD_FUNC_DEF_2(getsockaddrlen,sockobject *,s, int *,len_ret) |
Guido van Rossum | 710e1df | 1992-06-12 10:39:36 +0000 | [diff] [blame] | 377 | { |
| 378 | switch (s->sock_family) { |
| 379 | |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 380 | #ifdef AF_UNIX |
Guido van Rossum | 710e1df | 1992-06-12 10:39:36 +0000 | [diff] [blame] | 381 | case AF_UNIX: |
| 382 | { |
| 383 | *len_ret = sizeof (struct sockaddr_un); |
| 384 | return 1; |
| 385 | } |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 386 | #endif /* AF_UNIX */ |
Guido van Rossum | 710e1df | 1992-06-12 10:39:36 +0000 | [diff] [blame] | 387 | |
| 388 | case AF_INET: |
| 389 | { |
| 390 | *len_ret = sizeof (struct sockaddr_in); |
| 391 | return 1; |
| 392 | } |
| 393 | |
| 394 | /* More cases here... */ |
| 395 | |
| 396 | default: |
| 397 | err_setstr(SocketError, "getsockaddrarg: bad family"); |
| 398 | return 0; |
| 399 | |
| 400 | } |
| 401 | } |
| 402 | |
| 403 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 404 | /* s.accept() method */ |
| 405 | |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 406 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 407 | BUILD_FUNC_DEF_2(sock_accept,sockobject *,s, object *,args) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 408 | { |
| 409 | char addrbuf[256]; |
| 410 | int addrlen, newfd; |
Guido van Rossum | 6f5afc9 | 1993-02-05 09:46:15 +0000 | [diff] [blame] | 411 | object *sock, *addr, *res; |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 412 | if (!getnoarg(args)) |
| 413 | return NULL; |
Guido van Rossum | 710e1df | 1992-06-12 10:39:36 +0000 | [diff] [blame] | 414 | if (!getsockaddrlen(s, &addrlen)) |
| 415 | return NULL; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 416 | BGN_SAVE |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 417 | newfd = accept(s->sock_fd, (struct sockaddr *) addrbuf, &addrlen); |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 418 | END_SAVE |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 419 | if (newfd < 0) |
| 420 | return socket_error(); |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 421 | /* Create the new object with unspecified family, |
| 422 | to avoid calls to bind() etc. on it. */ |
Guido van Rossum | 6f5afc9 | 1993-02-05 09:46:15 +0000 | [diff] [blame] | 423 | sock = (object *) newsockobject(newfd, |
| 424 | s->sock_family, |
| 425 | s->sock_type, |
| 426 | s->sock_proto); |
| 427 | if (sock == NULL) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 428 | close(newfd); |
Guido van Rossum | 6f5afc9 | 1993-02-05 09:46:15 +0000 | [diff] [blame] | 429 | addr = makesockaddr((struct sockaddr *) addrbuf, addrlen); |
| 430 | res = mkvalue("OO", sock, addr); |
| 431 | XDECREF(sock); |
| 432 | XDECREF(addr); |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 433 | return res; |
| 434 | } |
| 435 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 436 | |
Guido van Rossum | c65a525 | 1994-08-05 13:44:50 +0000 | [diff] [blame] | 437 | #if 0 |
Guido van Rossum | e0e5edc | 1991-10-20 20:22:28 +0000 | [diff] [blame] | 438 | /* s.allowbroadcast() method */ |
Guido van Rossum | 0e69587d | 1992-06-05 15:11:30 +0000 | [diff] [blame] | 439 | /* XXX obsolete -- will disappear in next release */ |
Guido van Rossum | e0e5edc | 1991-10-20 20:22:28 +0000 | [diff] [blame] | 440 | |
| 441 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 442 | BUILD_FUNC_DEF_2(sock_allowbroadcast,sockobject *,s, object *,args) |
Guido van Rossum | e0e5edc | 1991-10-20 20:22:28 +0000 | [diff] [blame] | 443 | { |
| 444 | int flag; |
| 445 | int res; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 446 | if (!getargs(args, "i", &flag)) |
Guido van Rossum | e0e5edc | 1991-10-20 20:22:28 +0000 | [diff] [blame] | 447 | return NULL; |
| 448 | res = setsockopt(s->sock_fd, SOL_SOCKET, SO_BROADCAST, |
Guido van Rossum | b376a4a | 1993-11-23 17:53:17 +0000 | [diff] [blame] | 449 | (ANY *)&flag, sizeof flag); |
Guido van Rossum | e0e5edc | 1991-10-20 20:22:28 +0000 | [diff] [blame] | 450 | if (res < 0) |
| 451 | return socket_error(); |
| 452 | INCREF(None); |
| 453 | return None; |
| 454 | } |
Guido van Rossum | c65a525 | 1994-08-05 13:44:50 +0000 | [diff] [blame] | 455 | #endif |
Guido van Rossum | e0e5edc | 1991-10-20 20:22:28 +0000 | [diff] [blame] | 456 | |
| 457 | |
Guido van Rossum | e4485b0 | 1994-09-07 14:32:49 +0000 | [diff] [blame] | 458 | #ifndef NT |
| 459 | |
| 460 | /* s.setblocking(1 | 0) method */ |
| 461 | |
| 462 | static object * |
| 463 | sock_setblocking(s, args) |
| 464 | sockobject *s; |
| 465 | object *args; |
| 466 | { |
| 467 | int block; |
| 468 | int delay_flag; |
| 469 | if (!getintarg(args, &block)) |
| 470 | return NULL; |
| 471 | BGN_SAVE |
| 472 | delay_flag = fcntl (s->sock_fd, F_GETFL, 0); |
| 473 | if (block) |
| 474 | delay_flag &= (~O_NDELAY); |
| 475 | else |
| 476 | delay_flag |= O_NDELAY; |
| 477 | fcntl (s->sock_fd, F_SETFL, delay_flag); |
| 478 | END_SAVE |
| 479 | |
| 480 | INCREF(None); |
| 481 | return None; |
| 482 | } |
| 483 | #endif |
| 484 | |
| 485 | |
Guido van Rossum | aee0879 | 1992-09-08 09:05:33 +0000 | [diff] [blame] | 486 | /* s.setsockopt() method. |
| 487 | With an integer third argument, sets an integer option. |
| 488 | With a string third argument, sets an option from a buffer; |
| 489 | use optional built-in module 'struct' to encode the string. */ |
Guido van Rossum | 0e69587d | 1992-06-05 15:11:30 +0000 | [diff] [blame] | 490 | |
| 491 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 492 | BUILD_FUNC_DEF_2(sock_setsockopt,sockobject *,s, object *,args) |
Guido van Rossum | 0e69587d | 1992-06-05 15:11:30 +0000 | [diff] [blame] | 493 | { |
| 494 | int level; |
| 495 | int optname; |
Guido van Rossum | 0e69587d | 1992-06-05 15:11:30 +0000 | [diff] [blame] | 496 | int res; |
Guido van Rossum | aee0879 | 1992-09-08 09:05:33 +0000 | [diff] [blame] | 497 | char *buf; |
| 498 | int buflen; |
| 499 | int flag; |
Guido van Rossum | 0e69587d | 1992-06-05 15:11:30 +0000 | [diff] [blame] | 500 | |
Guido van Rossum | aee0879 | 1992-09-08 09:05:33 +0000 | [diff] [blame] | 501 | if (getargs(args, "(iii)", &level, &optname, &flag)) { |
| 502 | buf = (char *) &flag; |
| 503 | buflen = sizeof flag; |
| 504 | } |
| 505 | else { |
| 506 | err_clear(); |
| 507 | if (!getargs(args, "(iis#)", &level, &optname, &buf, &buflen)) |
| 508 | return NULL; |
| 509 | } |
Guido van Rossum | b376a4a | 1993-11-23 17:53:17 +0000 | [diff] [blame] | 510 | res = setsockopt(s->sock_fd, level, optname, (ANY *)buf, buflen); |
Guido van Rossum | 0e69587d | 1992-06-05 15:11:30 +0000 | [diff] [blame] | 511 | if (res < 0) |
| 512 | return socket_error(); |
| 513 | INCREF(None); |
| 514 | return None; |
| 515 | } |
| 516 | |
| 517 | |
Guido van Rossum | aee0879 | 1992-09-08 09:05:33 +0000 | [diff] [blame] | 518 | /* s.getsockopt() method. |
| 519 | With two arguments, retrieves an integer option. |
| 520 | With a third integer argument, retrieves a string buffer of that size; |
| 521 | use optional built-in module 'struct' to decode the string. */ |
Guido van Rossum | 0e69587d | 1992-06-05 15:11:30 +0000 | [diff] [blame] | 522 | |
| 523 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 524 | BUILD_FUNC_DEF_2(sock_getsockopt,sockobject *,s, object *,args) |
Guido van Rossum | 0e69587d | 1992-06-05 15:11:30 +0000 | [diff] [blame] | 525 | { |
| 526 | int level; |
| 527 | int optname; |
Guido van Rossum | 0e69587d | 1992-06-05 15:11:30 +0000 | [diff] [blame] | 528 | int res; |
Guido van Rossum | aee0879 | 1992-09-08 09:05:33 +0000 | [diff] [blame] | 529 | object *buf; |
| 530 | int buflen; |
| 531 | int flag; |
Guido van Rossum | 0e69587d | 1992-06-05 15:11:30 +0000 | [diff] [blame] | 532 | |
Guido van Rossum | aee0879 | 1992-09-08 09:05:33 +0000 | [diff] [blame] | 533 | if (getargs(args, "(ii)", &level, &optname)) { |
| 534 | int flag = 0; |
| 535 | int flagsize = sizeof flag; |
Guido van Rossum | b376a4a | 1993-11-23 17:53:17 +0000 | [diff] [blame] | 536 | res = getsockopt(s->sock_fd, level, optname, |
| 537 | (ANY *)&flag, &flagsize); |
Guido van Rossum | aee0879 | 1992-09-08 09:05:33 +0000 | [diff] [blame] | 538 | if (res < 0) |
| 539 | return socket_error(); |
| 540 | return newintobject(flag); |
| 541 | } |
| 542 | err_clear(); |
| 543 | if (!getargs(args, "(iii)", &level, &optname, &buflen)) |
Guido van Rossum | 0e69587d | 1992-06-05 15:11:30 +0000 | [diff] [blame] | 544 | return NULL; |
Guido van Rossum | aee0879 | 1992-09-08 09:05:33 +0000 | [diff] [blame] | 545 | if (buflen <= 0 || buflen > 1024) { |
| 546 | err_setstr(SocketError, "getsockopt buflen out of range"); |
| 547 | return NULL; |
| 548 | } |
| 549 | buf = newsizedstringobject((char *)NULL, buflen); |
| 550 | if (buf == NULL) |
| 551 | return NULL; |
Guido van Rossum | b376a4a | 1993-11-23 17:53:17 +0000 | [diff] [blame] | 552 | res = getsockopt(s->sock_fd, level, optname, |
| 553 | (ANY *)getstringvalue(buf), &buflen); |
Guido van Rossum | aee0879 | 1992-09-08 09:05:33 +0000 | [diff] [blame] | 554 | if (res < 0) { |
| 555 | DECREF(buf); |
Guido van Rossum | 0e69587d | 1992-06-05 15:11:30 +0000 | [diff] [blame] | 556 | return socket_error(); |
Guido van Rossum | aee0879 | 1992-09-08 09:05:33 +0000 | [diff] [blame] | 557 | } |
| 558 | resizestring(&buf, buflen); |
| 559 | return buf; |
Guido van Rossum | 0e69587d | 1992-06-05 15:11:30 +0000 | [diff] [blame] | 560 | } |
| 561 | |
| 562 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 563 | /* s.bind(sockaddr) method */ |
| 564 | |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 565 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 566 | BUILD_FUNC_DEF_2(sock_bind,sockobject *,s, object *,args) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 567 | { |
| 568 | struct sockaddr *addr; |
| 569 | int addrlen; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 570 | int res; |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 571 | if (!getsockaddrarg(s, args, &addr, &addrlen)) |
| 572 | return NULL; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 573 | BGN_SAVE |
| 574 | res = bind(s->sock_fd, addr, addrlen); |
| 575 | END_SAVE |
| 576 | if (res < 0) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 577 | return socket_error(); |
| 578 | INCREF(None); |
| 579 | return None; |
| 580 | } |
| 581 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 582 | |
| 583 | /* s.close() method. |
| 584 | Set the file descriptor to -1 so operations tried subsequently |
| 585 | will surely fail. */ |
| 586 | |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 587 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 588 | BUILD_FUNC_DEF_2(sock_close,sockobject *,s, object *,args) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 589 | { |
| 590 | if (!getnoarg(args)) |
| 591 | return NULL; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 592 | BGN_SAVE |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 593 | (void) close(s->sock_fd); |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 594 | END_SAVE |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 595 | s->sock_fd = -1; |
| 596 | INCREF(None); |
| 597 | return None; |
| 598 | } |
| 599 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 600 | |
| 601 | /* s.connect(sockaddr) method */ |
| 602 | |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 603 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 604 | BUILD_FUNC_DEF_2(sock_connect,sockobject *,s, object *,args) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 605 | { |
| 606 | struct sockaddr *addr; |
| 607 | int addrlen; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 608 | int res; |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 609 | if (!getsockaddrarg(s, args, &addr, &addrlen)) |
| 610 | return NULL; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 611 | BGN_SAVE |
| 612 | res = connect(s->sock_fd, addr, addrlen); |
| 613 | END_SAVE |
| 614 | if (res < 0) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 615 | return socket_error(); |
| 616 | INCREF(None); |
| 617 | return None; |
| 618 | } |
| 619 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 620 | |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 621 | /* s.fileno() method */ |
| 622 | |
| 623 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 624 | BUILD_FUNC_DEF_2(sock_fileno,sockobject *,s, object *,args) |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 625 | { |
| 626 | if (!getnoarg(args)) |
| 627 | return NULL; |
| 628 | return newintobject((long) s->sock_fd); |
| 629 | } |
| 630 | |
| 631 | |
Guido van Rossum | c89705d | 1992-11-26 08:54:07 +0000 | [diff] [blame] | 632 | /* s.getsockname() method */ |
| 633 | |
| 634 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 635 | BUILD_FUNC_DEF_2(sock_getsockname,sockobject *,s, object *,args) |
Guido van Rossum | c89705d | 1992-11-26 08:54:07 +0000 | [diff] [blame] | 636 | { |
| 637 | char addrbuf[256]; |
| 638 | int addrlen, res; |
| 639 | if (!getnoarg(args)) |
| 640 | return NULL; |
| 641 | if (!getsockaddrlen(s, &addrlen)) |
| 642 | return NULL; |
| 643 | BGN_SAVE |
| 644 | res = getsockname(s->sock_fd, (struct sockaddr *) addrbuf, &addrlen); |
| 645 | END_SAVE |
| 646 | if (res < 0) |
| 647 | return socket_error(); |
| 648 | return makesockaddr((struct sockaddr *) addrbuf, addrlen); |
| 649 | } |
| 650 | |
| 651 | |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 652 | #ifdef HAVE_GETPEERNAME /* Cray APP doesn't have this :-( */ |
Guido van Rossum | c89705d | 1992-11-26 08:54:07 +0000 | [diff] [blame] | 653 | /* s.getpeername() method */ |
| 654 | |
| 655 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 656 | BUILD_FUNC_DEF_2(sock_getpeername,sockobject *,s, object *,args) |
Guido van Rossum | c89705d | 1992-11-26 08:54:07 +0000 | [diff] [blame] | 657 | { |
| 658 | char addrbuf[256]; |
| 659 | int addrlen, res; |
| 660 | if (!getnoarg(args)) |
| 661 | return NULL; |
| 662 | if (!getsockaddrlen(s, &addrlen)) |
| 663 | return NULL; |
| 664 | BGN_SAVE |
| 665 | res = getpeername(s->sock_fd, (struct sockaddr *) addrbuf, &addrlen); |
| 666 | END_SAVE |
| 667 | if (res < 0) |
| 668 | return socket_error(); |
| 669 | return makesockaddr((struct sockaddr *) addrbuf, addrlen); |
| 670 | } |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 671 | #endif /* HAVE_GETPEERNAME */ |
Guido van Rossum | c89705d | 1992-11-26 08:54:07 +0000 | [diff] [blame] | 672 | |
| 673 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 674 | /* s.listen(n) method */ |
| 675 | |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 676 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 677 | BUILD_FUNC_DEF_2(sock_listen,sockobject *,s, object *,args) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 678 | { |
| 679 | int backlog; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 680 | int res; |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 681 | if (!getintarg(args, &backlog)) |
| 682 | return NULL; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 683 | BGN_SAVE |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 684 | if (backlog < 1) |
| 685 | backlog = 1; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 686 | res = listen(s->sock_fd, backlog); |
| 687 | END_SAVE |
| 688 | if (res < 0) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 689 | return socket_error(); |
| 690 | INCREF(None); |
| 691 | return None; |
| 692 | } |
| 693 | |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 694 | #ifndef NO_DUP |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 695 | /* s.makefile(mode) method. |
| 696 | Create a new open file object referring to a dupped version of |
| 697 | the socket's file descriptor. (The dup() call is necessary so |
| 698 | that the open file and socket objects may be closed independent |
| 699 | of each other.) |
| 700 | The mode argument specifies 'r' or 'w' passed to fdopen(). */ |
| 701 | |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 702 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 703 | BUILD_FUNC_DEF_2(sock_makefile,sockobject *,s, object *,args) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 704 | { |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 705 | extern int fclose PROTO((FILE *)); |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 706 | char *mode; |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 707 | int fd; |
| 708 | FILE *fp; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 709 | if (!getargs(args, "s", &mode)) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 710 | return NULL; |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 711 | if ((fd = dup(s->sock_fd)) < 0 || |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 712 | (fp = fdopen(fd, mode)) == NULL) |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 713 | return socket_error(); |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 714 | return newopenfileobject(fp, "<socket>", mode, fclose); |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 715 | } |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 716 | #endif /* NO_DUP */ |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 717 | |
Guido van Rossum | eb6b33a | 1993-05-25 09:38:27 +0000 | [diff] [blame] | 718 | /* s.recv(nbytes [,flags]) method */ |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 719 | |
| 720 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 721 | BUILD_FUNC_DEF_2(sock_recv,sockobject *,s, object *,args) |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 722 | { |
| 723 | int len, n, flags; |
| 724 | object *buf; |
Guido van Rossum | eb6b33a | 1993-05-25 09:38:27 +0000 | [diff] [blame] | 725 | flags = 0; |
| 726 | if (!getargs(args, "i", &len)) { |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 727 | err_clear(); |
Guido van Rossum | eb6b33a | 1993-05-25 09:38:27 +0000 | [diff] [blame] | 728 | if (!getargs(args, "(ii)", &len, &flags)) |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 729 | return NULL; |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 730 | } |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 731 | buf = newsizedstringobject((char *) 0, len); |
| 732 | if (buf == NULL) |
| 733 | return NULL; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 734 | BGN_SAVE |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 735 | n = recv(s->sock_fd, getstringvalue(buf), len, flags); |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 736 | END_SAVE |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 737 | if (n < 0) |
| 738 | return socket_error(); |
| 739 | if (resizestring(&buf, n) < 0) |
| 740 | return NULL; |
| 741 | return buf; |
| 742 | } |
| 743 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 744 | |
Guido van Rossum | eb6b33a | 1993-05-25 09:38:27 +0000 | [diff] [blame] | 745 | /* s.recvfrom(nbytes [,flags]) method */ |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 746 | |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 747 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 748 | BUILD_FUNC_DEF_2(sock_recvfrom,sockobject *,s, object *,args) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 749 | { |
| 750 | char addrbuf[256]; |
Guido van Rossum | 6f5afc9 | 1993-02-05 09:46:15 +0000 | [diff] [blame] | 751 | object *buf, *addr, *ret; |
Guido van Rossum | eb6b33a | 1993-05-25 09:38:27 +0000 | [diff] [blame] | 752 | int addrlen, len, n, flags; |
| 753 | flags = 0; |
| 754 | if (!getargs(args, "i", &len)) { |
| 755 | err_clear(); |
| 756 | if (!getargs(args, "(ii)", &len, &flags)) |
| 757 | return NULL; |
| 758 | } |
Guido van Rossum | 18c9a4f | 1993-05-25 12:16:29 +0000 | [diff] [blame] | 759 | if (!getsockaddrlen(s, &addrlen)) |
| 760 | return NULL; |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 761 | buf = newsizedstringobject((char *) 0, len); |
Guido van Rossum | 18c9a4f | 1993-05-25 12:16:29 +0000 | [diff] [blame] | 762 | if (buf == NULL) |
| 763 | return NULL; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 764 | BGN_SAVE |
Guido van Rossum | eb6b33a | 1993-05-25 09:38:27 +0000 | [diff] [blame] | 765 | n = recvfrom(s->sock_fd, getstringvalue(buf), len, flags, |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 766 | #ifndef NT |
Guido van Rossum | b376a4a | 1993-11-23 17:53:17 +0000 | [diff] [blame] | 767 | (ANY *)addrbuf, &addrlen); |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 768 | #else |
| 769 | (struct sockaddr *)addrbuf, &addrlen); |
| 770 | #endif |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 771 | END_SAVE |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 772 | if (n < 0) |
| 773 | return socket_error(); |
| 774 | if (resizestring(&buf, n) < 0) |
| 775 | return NULL; |
Guido van Rossum | 6f5afc9 | 1993-02-05 09:46:15 +0000 | [diff] [blame] | 776 | addr = makesockaddr((struct sockaddr *)addrbuf, addrlen); |
| 777 | ret = mkvalue("OO", buf, addr); |
| 778 | XDECREF(addr); |
| 779 | XDECREF(buf); |
| 780 | return ret; |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 781 | } |
| 782 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 783 | |
Guido van Rossum | eb6b33a | 1993-05-25 09:38:27 +0000 | [diff] [blame] | 784 | /* s.send(data [,flags]) method */ |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 785 | |
| 786 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 787 | BUILD_FUNC_DEF_2(sock_send,sockobject *,s, object *,args) |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 788 | { |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 789 | char *buf; |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 790 | int len, n, flags; |
Guido van Rossum | eb6b33a | 1993-05-25 09:38:27 +0000 | [diff] [blame] | 791 | flags = 0; |
Guido van Rossum | 234f942 | 1993-06-17 12:35:49 +0000 | [diff] [blame] | 792 | if (!getargs(args, "s#", &buf, &len)) { |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 793 | err_clear(); |
Guido van Rossum | 234f942 | 1993-06-17 12:35:49 +0000 | [diff] [blame] | 794 | if (!getargs(args, "(s#i)", &buf, &len, &flags)) |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 795 | return NULL; |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 796 | } |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 797 | BGN_SAVE |
| 798 | n = send(s->sock_fd, buf, len, flags); |
| 799 | END_SAVE |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 800 | if (n < 0) |
| 801 | return socket_error(); |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 802 | return newintobject((long)n); |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 803 | } |
| 804 | |
| 805 | |
Guido van Rossum | eb6b33a | 1993-05-25 09:38:27 +0000 | [diff] [blame] | 806 | /* s.sendto(data, [flags,] sockaddr) method */ |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 807 | |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 808 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 809 | BUILD_FUNC_DEF_2(sock_sendto,sockobject *,s, object *,args) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 810 | { |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 811 | object *addro; |
| 812 | char *buf; |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 813 | struct sockaddr *addr; |
Guido van Rossum | eb6b33a | 1993-05-25 09:38:27 +0000 | [diff] [blame] | 814 | int addrlen, len, n, flags; |
| 815 | flags = 0; |
| 816 | if (!getargs(args, "(s#O)", &buf, &len, &addro)) { |
| 817 | err_clear(); |
| 818 | if (!getargs(args, "(s#iO)", &buf, &len, &flags, &addro)) |
| 819 | return NULL; |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 820 | } |
Guido van Rossum | eb6b33a | 1993-05-25 09:38:27 +0000 | [diff] [blame] | 821 | if (!getsockaddrarg(s, addro, &addr, &addrlen)) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 822 | return NULL; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 823 | BGN_SAVE |
Guido van Rossum | eb6b33a | 1993-05-25 09:38:27 +0000 | [diff] [blame] | 824 | n = sendto(s->sock_fd, buf, len, flags, addr, addrlen); |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 825 | END_SAVE |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 826 | if (n < 0) |
| 827 | return socket_error(); |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 828 | return newintobject((long)n); |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 829 | } |
| 830 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 831 | |
| 832 | /* s.shutdown(how) method */ |
| 833 | |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 834 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 835 | BUILD_FUNC_DEF_2(sock_shutdown,sockobject *,s, object *,args) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 836 | { |
| 837 | int how; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 838 | int res; |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 839 | if (!getintarg(args, &how)) |
| 840 | return NULL; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 841 | BGN_SAVE |
| 842 | res = shutdown(s->sock_fd, how); |
| 843 | END_SAVE |
| 844 | if (res < 0) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 845 | return socket_error(); |
| 846 | INCREF(None); |
| 847 | return None; |
| 848 | } |
| 849 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 850 | |
| 851 | /* List of methods for socket objects */ |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 852 | |
| 853 | static struct methodlist sock_methods[] = { |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 854 | {"accept", (method)sock_accept}, |
Guido van Rossum | c65a525 | 1994-08-05 13:44:50 +0000 | [diff] [blame] | 855 | #if 0 |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 856 | {"allowbroadcast", (method)sock_allowbroadcast}, |
Guido van Rossum | c65a525 | 1994-08-05 13:44:50 +0000 | [diff] [blame] | 857 | #endif |
Guido van Rossum | e4485b0 | 1994-09-07 14:32:49 +0000 | [diff] [blame] | 858 | #ifndef NT |
| 859 | {"setblocking", (method)sock_setblocking}, |
| 860 | #endif |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 861 | {"setsockopt", (method)sock_setsockopt}, |
| 862 | {"getsockopt", (method)sock_getsockopt}, |
| 863 | {"bind", (method)sock_bind}, |
| 864 | {"close", (method)sock_close}, |
| 865 | {"connect", (method)sock_connect}, |
| 866 | {"fileno", (method)sock_fileno}, |
| 867 | {"getsockname", (method)sock_getsockname}, |
| 868 | #ifdef HAVE_GETPEERNAME |
| 869 | {"getpeername", (method)sock_getpeername}, |
Guido van Rossum | 9575a44 | 1993-04-07 14:06:14 +0000 | [diff] [blame] | 870 | #endif |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 871 | {"listen", (method)sock_listen}, |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 872 | #ifndef NO_DUP |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 873 | {"makefile", (method)sock_makefile}, |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 874 | #endif |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 875 | {"recv", (method)sock_recv}, |
| 876 | {"recvfrom", (method)sock_recvfrom}, |
| 877 | {"send", (method)sock_send}, |
| 878 | {"sendto", (method)sock_sendto}, |
| 879 | {"shutdown", (method)sock_shutdown}, |
| 880 | {NULL, NULL} /* sentinel */ |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 881 | }; |
| 882 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 883 | |
| 884 | /* Deallocate a socket object in response to the last DECREF(). |
| 885 | First close the file description. */ |
| 886 | |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 887 | static void |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 888 | BUILD_FUNC_DEF_1(sock_dealloc, sockobject *,s) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 889 | { |
| 890 | (void) close(s->sock_fd); |
| 891 | DEL(s); |
| 892 | } |
| 893 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 894 | |
| 895 | /* Return a socket object's named attribute. */ |
| 896 | |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 897 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 898 | BUILD_FUNC_DEF_2(sock_getattr,sockobject *,s, char *,name) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 899 | { |
| 900 | return findmethod(sock_methods, (object *) s, name); |
| 901 | } |
| 902 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 903 | |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 904 | /* Type object for socket objects. */ |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 905 | |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 906 | static typeobject Socktype = { |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 907 | OB_HEAD_INIT(&Typetype) |
| 908 | 0, |
| 909 | "socket", |
| 910 | sizeof(sockobject), |
| 911 | 0, |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 912 | (destructor)sock_dealloc, /*tp_dealloc*/ |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 913 | 0, /*tp_print*/ |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 914 | (getattrfunc)sock_getattr, /*tp_getattr*/ |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 915 | 0, /*tp_setattr*/ |
| 916 | 0, /*tp_compare*/ |
| 917 | 0, /*tp_repr*/ |
| 918 | 0, /*tp_as_number*/ |
| 919 | 0, /*tp_as_sequence*/ |
| 920 | 0, /*tp_as_mapping*/ |
| 921 | }; |
| 922 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 923 | |
Guido van Rossum | 8119447 | 1991-07-27 21:42:02 +0000 | [diff] [blame] | 924 | /* Python interface to gethostname(). */ |
| 925 | |
| 926 | /*ARGSUSED*/ |
| 927 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 928 | BUILD_FUNC_DEF_2(socket_gethostname,object *,self, object *,args) |
Guido van Rossum | 8119447 | 1991-07-27 21:42:02 +0000 | [diff] [blame] | 929 | { |
| 930 | char buf[1024]; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 931 | int res; |
Guido van Rossum | 8119447 | 1991-07-27 21:42:02 +0000 | [diff] [blame] | 932 | if (!getnoarg(args)) |
| 933 | return NULL; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 934 | BGN_SAVE |
| 935 | res = gethostname(buf, (int) sizeof buf - 1); |
| 936 | END_SAVE |
| 937 | if (res < 0) |
Guido van Rossum | 8119447 | 1991-07-27 21:42:02 +0000 | [diff] [blame] | 938 | return socket_error(); |
| 939 | buf[sizeof buf - 1] = '\0'; |
| 940 | return newstringobject(buf); |
| 941 | } |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 942 | |
| 943 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 944 | /* Python interface to gethostbyname(name). */ |
| 945 | |
| 946 | /*ARGSUSED*/ |
| 947 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 948 | BUILD_FUNC_DEF_2(socket_gethostbyname,object *,self, object *,args) |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 949 | { |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 950 | char *name; |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 951 | struct sockaddr_in addrbuf; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 952 | if (!getargs(args, "s", &name)) |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 953 | return NULL; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 954 | if (setipaddr(name, &addrbuf) < 0) |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 955 | return NULL; |
| 956 | return makeipaddr(&addrbuf); |
| 957 | } |
| 958 | |
| 959 | |
| 960 | /* Python interface to getservbyname(name). |
| 961 | This only returns the port number, since the other info is already |
| 962 | known or not useful (like the list of aliases). */ |
| 963 | |
| 964 | /*ARGSUSED*/ |
| 965 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 966 | BUILD_FUNC_DEF_2(socket_getservbyname,object *,self, object *,args) |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 967 | { |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 968 | char *name, *proto; |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 969 | struct servent *sp; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 970 | if (!getargs(args, "(ss)", &name, &proto)) |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 971 | return NULL; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 972 | BGN_SAVE |
| 973 | sp = getservbyname(name, proto); |
| 974 | END_SAVE |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 975 | if (sp == NULL) { |
| 976 | err_setstr(SocketError, "service/proto not found"); |
| 977 | return NULL; |
| 978 | } |
| 979 | return newintobject((long) ntohs(sp->s_port)); |
| 980 | } |
| 981 | |
| 982 | |
| 983 | /* Python interface to socket(family, type, proto). |
| 984 | The third (protocol) argument is optional. |
| 985 | Return a new socket object. */ |
| 986 | |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 987 | /*ARGSUSED*/ |
| 988 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 989 | BUILD_FUNC_DEF_2(socket_socket,object *,self,object *,args) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 990 | { |
| 991 | sockobject *s; |
Guido van Rossum | 2a7178e | 1992-12-08 13:38:24 +0000 | [diff] [blame] | 992 | int fd, family, type, proto; |
| 993 | proto = 0; |
| 994 | if (!getargs(args, "(ii)", &family, &type)) { |
| 995 | err_clear(); |
| 996 | if (!getargs(args, "(iii)", &family, &type, &proto)) |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 997 | return NULL; |
| 998 | } |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 999 | BGN_SAVE |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 1000 | fd = socket(family, type, proto); |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 1001 | END_SAVE |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 1002 | if (fd < 0) |
| 1003 | return socket_error(); |
| 1004 | s = newsockobject(fd, family, type, proto); |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 1005 | /* If the object can't be created, don't forget to close the |
| 1006 | file descriptor again! */ |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 1007 | if (s == NULL) |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 1008 | (void) close(fd); |
Guido van Rossum | 8119447 | 1991-07-27 21:42:02 +0000 | [diff] [blame] | 1009 | /* From now on, ignore SIGPIPE and let the error checking |
| 1010 | do the work. */ |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 1011 | #ifdef SIGPIPE |
Guido van Rossum | 8119447 | 1991-07-27 21:42:02 +0000 | [diff] [blame] | 1012 | (void) signal(SIGPIPE, SIG_IGN); |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 1013 | #endif |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 1014 | return (object *) s; |
| 1015 | } |
| 1016 | |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 1017 | #ifndef NO_DUP |
Guido van Rossum | 2a7178e | 1992-12-08 13:38:24 +0000 | [diff] [blame] | 1018 | /* Create a socket object from a numeric file description. |
| 1019 | Useful e.g. if stdin is a socket. |
| 1020 | Additional arguments as for socket(). */ |
| 1021 | |
| 1022 | /*ARGSUSED*/ |
| 1023 | static object * |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 1024 | BUILD_FUNC_DEF_2(socket_fromfd,object *,self,object *,args) |
Guido van Rossum | 2a7178e | 1992-12-08 13:38:24 +0000 | [diff] [blame] | 1025 | { |
| 1026 | sockobject *s; |
| 1027 | int fd, family, type, proto; |
| 1028 | proto = 0; |
| 1029 | if (!getargs(args, "(iii)", &fd, &family, &type)) { |
| 1030 | err_clear(); |
| 1031 | if (!getargs(args, "(iiii)", &fd, &family, &type, &proto)) |
| 1032 | return NULL; |
| 1033 | } |
Guido van Rossum | 5f59d60 | 1992-12-14 16:59:51 +0000 | [diff] [blame] | 1034 | /* Dup the fd so it and the socket can be closed independently */ |
| 1035 | fd = dup(fd); |
| 1036 | if (fd < 0) |
| 1037 | return socket_error(); |
Guido van Rossum | 2a7178e | 1992-12-08 13:38:24 +0000 | [diff] [blame] | 1038 | s = newsockobject(fd, family, type, proto); |
| 1039 | /* From now on, ignore SIGPIPE and let the error checking |
| 1040 | do the work. */ |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 1041 | #ifdef SIGPIPE |
Guido van Rossum | 2a7178e | 1992-12-08 13:38:24 +0000 | [diff] [blame] | 1042 | (void) signal(SIGPIPE, SIG_IGN); |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 1043 | #endif |
Guido van Rossum | 2a7178e | 1992-12-08 13:38:24 +0000 | [diff] [blame] | 1044 | return (object *) s; |
| 1045 | } |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 1046 | #endif /* NO_DUP */ |
Guido van Rossum | 2a7178e | 1992-12-08 13:38:24 +0000 | [diff] [blame] | 1047 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 1048 | /* List of functions exported by this module. */ |
| 1049 | |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 1050 | static struct methodlist socket_methods[] = { |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 1051 | {"gethostbyname", socket_gethostbyname}, |
Guido van Rossum | 8119447 | 1991-07-27 21:42:02 +0000 | [diff] [blame] | 1052 | {"gethostname", socket_gethostname}, |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 1053 | {"getservbyname", socket_getservbyname}, |
| 1054 | {"socket", socket_socket}, |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 1055 | #ifndef NO_DUP |
Guido van Rossum | 2a7178e | 1992-12-08 13:38:24 +0000 | [diff] [blame] | 1056 | {"fromfd", socket_fromfd}, |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 1057 | #endif |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 1058 | {NULL, NULL} /* Sentinel */ |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 1059 | }; |
| 1060 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 1061 | |
| 1062 | /* Convenience routine to export an integer value. |
| 1063 | For simplicity, errors (which are unlikely anyway) are ignored. */ |
| 1064 | |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 1065 | static void |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 1066 | BUILD_FUNC_DEF_3(insint,object *,d,char *,name,int,value) |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 1067 | { |
| 1068 | object *v = newintobject((long) value); |
| 1069 | if (v == NULL) { |
| 1070 | /* Don't bother reporting this error */ |
| 1071 | err_clear(); |
| 1072 | } |
| 1073 | else { |
| 1074 | dictinsert(d, name, v); |
| 1075 | DECREF(v); |
| 1076 | } |
| 1077 | } |
| 1078 | |
Guido van Rossum | 30a685f | 1991-06-27 15:51:29 +0000 | [diff] [blame] | 1079 | |
| 1080 | /* Initialize this module. |
| 1081 | This is called when the first 'import socket' is done, |
| 1082 | via a table in config.c, if config.c is compiled with USE_SOCKET |
| 1083 | defined. */ |
| 1084 | |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 1085 | void |
| 1086 | initsocket() |
| 1087 | { |
| 1088 | object *m, *d; |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 1089 | m = initmodule("socket", socket_methods); |
| 1090 | d = getmoduledict(m); |
| 1091 | SocketError = newstringobject("socket.error"); |
| 1092 | if (SocketError == NULL || dictinsert(d, "error", SocketError) != 0) |
| 1093 | fatal("can't define socket.error"); |
| 1094 | insint(d, "AF_INET", AF_INET); |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 1095 | #ifdef AF_UNIX |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 1096 | insint(d, "AF_UNIX", AF_UNIX); |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 1097 | #endif /* AF_UNIX */ |
Guido van Rossum | 6574b3e | 1991-06-25 21:36:08 +0000 | [diff] [blame] | 1098 | insint(d, "SOCK_STREAM", SOCK_STREAM); |
| 1099 | insint(d, "SOCK_DGRAM", SOCK_DGRAM); |
| 1100 | insint(d, "SOCK_RAW", SOCK_RAW); |
| 1101 | insint(d, "SOCK_SEQPACKET", SOCK_SEQPACKET); |
| 1102 | insint(d, "SOCK_RDM", SOCK_RDM); |
| 1103 | } |
Guido van Rossum | 6a3eb5f | 1994-08-18 15:42:46 +0000 | [diff] [blame] | 1104 | |
| 1105 | #ifdef NT |
| 1106 | BOOL WINAPI DllMain (HANDLE hInst, |
| 1107 | ULONG ul_reason_for_call, |
| 1108 | LPVOID lpReserved) |
| 1109 | { |
| 1110 | switch (ul_reason_for_call) |
| 1111 | { |
| 1112 | case DLL_PROCESS_ATTACH: |
| 1113 | WSADATA WSAData; |
| 1114 | if (WSAStartup(MAKEWORD(2,0), &WSAData)) { |
| 1115 | OutputDebugString("Python can't initialize Windows Sockets DLL!"); |
| 1116 | return FALSE; |
| 1117 | } |
| 1118 | break; |
| 1119 | case DLL_PROCESS_DETACH: |
| 1120 | WSACleanup(); |
| 1121 | break; |
| 1122 | |
| 1123 | } |
| 1124 | return TRUE; |
| 1125 | } |
| 1126 | #endif /* NT */ |