121 lines
3.0 KiB
C
121 lines
3.0 KiB
C
/************************************************
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constants.c -
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created at: Thu Mar 31 12:21:29 JST 1994
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Copyright (C) 1993-2007 Yukihiro Matsumoto
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************************************************/
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#include "rubysocket.h"
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static void sock_define_const(const char *name, int value, VALUE mConst);
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static void sock_define_uconst(const char *name, unsigned int value, VALUE mConst);
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#define sock_define_const(name, value) sock_define_const(name, value, mConst)
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#define sock_define_uconst(name, value) sock_define_uconst(name, value, mConst)
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#include "constdefs.c"
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#undef sock_define_const
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#undef sock_define_uconst
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static int
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constant_arg(VALUE arg, int (*str_to_int)(const char*, int, int*), const char *errmsg)
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{
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VALUE tmp;
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char *ptr;
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int ret;
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if (SYMBOL_P(arg)) {
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arg = rb_sym_to_s(arg);
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goto str;
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}
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else if (!NIL_P(tmp = rb_check_string_type(arg))) {
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arg = tmp;
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str:
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rb_check_safe_obj(arg);
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ptr = RSTRING_PTR(arg);
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if (str_to_int(ptr, RSTRING_LEN(arg), &ret) == -1)
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rb_raise(rb_eSocket, "%s: %s", errmsg, ptr);
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}
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else {
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ret = NUM2INT(arg);
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}
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return ret;
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}
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int
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family_arg(VALUE domain)
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{
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/* convert AF_INET, etc. */
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return constant_arg(domain, family_to_int, "unknown socket domain");
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}
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int
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socktype_arg(VALUE type)
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{
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/* convert SOCK_STREAM, etc. */
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return constant_arg(type, socktype_to_int, "unknown socket type");
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}
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int
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level_arg(VALUE level)
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{
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/* convert SOL_SOCKET, IPPROTO_TCP, etc. */
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return constant_arg(level, level_to_int, "unknown protocol level");
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}
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int
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optname_arg(int level, VALUE optname)
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{
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switch (level) {
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case SOL_SOCKET:
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return constant_arg(optname, so_optname_to_int, "unknown socket level option name");
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case IPPROTO_IP:
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return constant_arg(optname, ip_optname_to_int, "unknown IP level option name");
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#ifdef IPPROTO_IPV6
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case IPPROTO_IPV6:
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return constant_arg(optname, ipv6_optname_to_int, "unknown IPv6 level option name");
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#endif
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case IPPROTO_TCP:
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return constant_arg(optname, tcp_optname_to_int, "unknown TCP level option name");
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case IPPROTO_UDP:
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return constant_arg(optname, udp_optname_to_int, "unknown UDP level option name");
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default:
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return NUM2INT(optname);
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}
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}
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int
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shutdown_how_arg(VALUE how)
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{
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/* convert SHUT_RD, SHUT_WR, SHUT_RDWR. */
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return constant_arg(how, shutdown_how_to_int, "unknown shutdown argument");
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}
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static void
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sock_define_const(const char *name, int value, VALUE mConst)
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{
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rb_define_const(rb_cSocket, name, INT2NUM(value));
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rb_define_const(mConst, name, INT2NUM(value));
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}
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static void
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sock_define_uconst(const char *name, unsigned int value, VALUE mConst)
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{
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rb_define_const(rb_cSocket, name, UINT2NUM(value));
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rb_define_const(mConst, name, UINT2NUM(value));
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}
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/*
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* Socket::Constants module
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*/
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void
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Init_socket_constants(void)
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{
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VALUE mConst;
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/* constants */
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mConst = rb_define_module_under(rb_cSocket, "Constants");
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init_constants(mConst);
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}
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