Mercurial > luasocket

annotate src/udp.c @ 1:cf0892e34f45

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Resyncing with Git repo
author Eric Wing <ewing . public |-at-| gmail . com>
date Wed, 27 Aug 2008 22:44:22 -0700
parents 4b915342e2a8
children
rev   line source
0
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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1 /*=========================================================================*\
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2 * UDP object
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3 * LuaSocket toolkit
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4 *
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5 * RCS ID: $Id: udp.c,v 1.29 2005/10/07 04:40:59 diego Exp $
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6 \*=========================================================================*/
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7 #include <string.h>
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8
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9 #include "lua.h"
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10 #include "lauxlib.h"
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11
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12 #include "auxiliar.h"
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13 #include "socket.h"
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14 #include "inet.h"
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15 #include "options.h"
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16 #include "udp.h"
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17
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18 /* min and max macros */
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19 #ifndef MIN
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20 #define MIN(x, y) ((x) < (y) ? x : y)
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21 #endif
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22 #ifndef MAX
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23 #define MAX(x, y) ((x) > (y) ? x : y)
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24 #endif
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25
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26 /*=========================================================================*\
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27 * Internal function prototypes
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28 \*=========================================================================*/
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29 static int global_create(lua_State *L);
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30 static int meth_send(lua_State *L);
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31 static int meth_sendto(lua_State *L);
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32 static int meth_receive(lua_State *L);
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33 static int meth_receivefrom(lua_State *L);
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34 static int meth_getsockname(lua_State *L);
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35 static int meth_getpeername(lua_State *L);
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36 static int meth_setsockname(lua_State *L);
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37 static int meth_setpeername(lua_State *L);
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38 static int meth_close(lua_State *L);
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39 static int meth_setoption(lua_State *L);
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40 static int meth_settimeout(lua_State *L);
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41 static int meth_getfd(lua_State *L);
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42 static int meth_setfd(lua_State *L);
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43 static int meth_dirty(lua_State *L);
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44
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45 /* udp object methods */
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46 static luaL_reg udp[] = {
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47 {"__gc", meth_close},
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48 {"__tostring", auxiliar_tostring},
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49 {"close", meth_close},
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50 {"dirty", meth_dirty},
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51 {"getfd", meth_getfd},
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52 {"getpeername", meth_getpeername},
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53 {"getsockname", meth_getsockname},
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54 {"receive", meth_receive},
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55 {"receivefrom", meth_receivefrom},
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56 {"send", meth_send},
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57 {"sendto", meth_sendto},
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58 {"setfd", meth_setfd},
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59 {"setoption", meth_setoption},
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60 {"setpeername", meth_setpeername},
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61 {"setsockname", meth_setsockname},
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62 {"settimeout", meth_settimeout},
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63 {NULL, NULL}
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64 };
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65
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66 /* socket options */
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67 static t_opt opt[] = {
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68 {"dontroute", opt_dontroute},
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69 {"broadcast", opt_broadcast},
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70 {"reuseaddr", opt_reuseaddr},
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71 {"ip-multicast-ttl", opt_ip_multicast_ttl},
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72 {"ip-multicast-loop", opt_ip_multicast_loop},
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73 {"ip-add-membership", opt_ip_add_membership},
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74 {"ip-drop-membership", opt_ip_drop_membersip},
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75 {NULL, NULL}
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76 };
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77
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78 /* functions in library namespace */
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79 static luaL_reg func[] = {
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80 {"udp", global_create},
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81 {NULL, NULL}
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82 };
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83
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84 /*-------------------------------------------------------------------------*\
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85 * Initializes module
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86 \*-------------------------------------------------------------------------*/
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87 int udp_open(lua_State *L)
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88 {
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89 /* create classes */
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90 auxiliar_newclass(L, "udp{connected}", udp);
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91 auxiliar_newclass(L, "udp{unconnected}", udp);
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92 /* create class groups */
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93 auxiliar_add2group(L, "udp{connected}", "udp{any}");
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94 auxiliar_add2group(L, "udp{unconnected}", "udp{any}");
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95 auxiliar_add2group(L, "udp{connected}", "select{able}");
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96 auxiliar_add2group(L, "udp{unconnected}", "select{able}");
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97 /* define library functions */
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98 luaL_openlib(L, NULL, func, 0);
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99 return 0;
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100 }
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101
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102 /*=========================================================================*\
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103 * Lua methods
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104 \*=========================================================================*/
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105 const char *udp_strerror(int err) {
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106 /* a 'closed' error on an unconnected means the target address was not
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107 * accepted by the transport layer */
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108 if (err == IO_CLOSED) return "refused";
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109 else return socket_strerror(err);
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110 }
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111
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112 /*-------------------------------------------------------------------------*\
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113 * Send data through connected udp socket
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114 \*-------------------------------------------------------------------------*/
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115 static int meth_send(lua_State *L) {
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116 p_udp udp = (p_udp) auxiliar_checkclass(L, "udp{connected}", 1);
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117 p_timeout tm = &udp->tm;
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118 size_t count, sent = 0;
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119 int err;
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120 const char *data = luaL_checklstring(L, 2, &count);
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121 timeout_markstart(tm);
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122 err = socket_send(&udp->sock, data, count, &sent, tm);
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123 if (err != IO_DONE) {
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124 lua_pushnil(L);
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125 lua_pushstring(L, udp_strerror(err));
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126 return 2;
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
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127 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
128 lua_pushnumber(L, sent);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
129 return 1;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
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130 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
131
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
132 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
133 * Send data through unconnected udp socket
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
134 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
135 static int meth_sendto(lua_State *L) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
136 p_udp udp = (p_udp) auxiliar_checkclass(L, "udp{unconnected}", 1);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
137 size_t count, sent = 0;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
138 const char *data = luaL_checklstring(L, 2, &count);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
139 const char *ip = luaL_checkstring(L, 3);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
140 unsigned short port = (unsigned short) luaL_checknumber(L, 4);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
141 p_timeout tm = &udp->tm;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
142 struct sockaddr_in addr;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
143 int err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
144 memset(&addr, 0, sizeof(addr));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
145 if (!inet_aton(ip, &addr.sin_addr))
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
146 luaL_argerror(L, 3, "invalid ip address");
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
147 addr.sin_family = AF_INET;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
148 addr.sin_port = htons(port);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
149 timeout_markstart(tm);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
150 err = socket_sendto(&udp->sock, data, count, &sent,
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
151 (SA *) &addr, sizeof(addr), tm);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
152 if (err != IO_DONE) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
153 lua_pushnil(L);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
154 lua_pushstring(L, udp_strerror(err));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
155 return 2;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
156 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
157 lua_pushnumber(L, sent);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
158 return 1;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
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159 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
160
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
161 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
162 * Receives data from a UDP socket
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
163 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
164 static int meth_receive(lua_State *L) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
165 p_udp udp = (p_udp) auxiliar_checkgroup(L, "udp{any}", 1);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
166 char buffer[UDP_DATAGRAMSIZE];
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
167 size_t got, count = (size_t) luaL_optnumber(L, 2, sizeof(buffer));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
168 int err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
169 p_timeout tm = &udp->tm;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
170 count = MIN(count, sizeof(buffer));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
171 timeout_markstart(tm);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
172 err = socket_recv(&udp->sock, buffer, count, &got, tm);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
173 if (err != IO_DONE) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
174 lua_pushnil(L);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
175 lua_pushstring(L, udp_strerror(err));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
176 return 2;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
177 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
178 lua_pushlstring(L, buffer, got);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
179 return 1;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
180 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
181
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
182 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
183 * Receives data and sender from a UDP socket
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
184 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
185 static int meth_receivefrom(lua_State *L) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
186 p_udp udp = (p_udp) auxiliar_checkclass(L, "udp{unconnected}", 1);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
187 struct sockaddr_in addr;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
188 socklen_t addr_len = sizeof(addr);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
189 char buffer[UDP_DATAGRAMSIZE];
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
190 size_t got, count = (size_t) luaL_optnumber(L, 2, sizeof(buffer));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
191 int err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
192 p_timeout tm = &udp->tm;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
193 timeout_markstart(tm);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
194 count = MIN(count, sizeof(buffer));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
195 err = socket_recvfrom(&udp->sock, buffer, count, &got,
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
196 (SA *) &addr, &addr_len, tm);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
197 if (err == IO_DONE) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
198 lua_pushlstring(L, buffer, got);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
199 lua_pushstring(L, inet_ntoa(addr.sin_addr));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
200 lua_pushnumber(L, ntohs(addr.sin_port));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
201 return 3;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
202 } else {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
203 lua_pushnil(L);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
204 lua_pushstring(L, udp_strerror(err));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
205 return 2;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
206 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
207 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
208
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
209 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
210 * Select support methods
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
211 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
212 static int meth_getfd(lua_State *L) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
213 p_udp udp = (p_udp) auxiliar_checkgroup(L, "udp{any}", 1);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
214 lua_pushnumber(L, (int) udp->sock);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
215 return 1;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
216 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
217
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
218 /* this is very dangerous, but can be handy for those that are brave enough */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
219 static int meth_setfd(lua_State *L) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
220 p_udp udp = (p_udp) auxiliar_checkgroup(L, "udp{any}", 1);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
221 udp->sock = (t_socket) luaL_checknumber(L, 2);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
222 return 0;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
223 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
224
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
225 static int meth_dirty(lua_State *L) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
226 p_udp udp = (p_udp) auxiliar_checkgroup(L, "udp{any}", 1);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
227 (void) udp;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
228 lua_pushboolean(L, 0);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
229 return 1;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
230 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
231
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
232 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
233 * Just call inet methods
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
234 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
235 static int meth_getpeername(lua_State *L) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
236 p_udp udp = (p_udp) auxiliar_checkclass(L, "udp{connected}", 1);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
237 return inet_meth_getpeername(L, &udp->sock);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
238 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
239
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
240 static int meth_getsockname(lua_State *L) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
241 p_udp udp = (p_udp) auxiliar_checkgroup(L, "udp{any}", 1);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
242 return inet_meth_getsockname(L, &udp->sock);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
243 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
244
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
245 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
246 * Just call option handler
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
247 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
248 static int meth_setoption(lua_State *L) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
249 p_udp udp = (p_udp) auxiliar_checkgroup(L, "udp{any}", 1);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
250 return opt_meth_setoption(L, opt, &udp->sock);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
251 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
252
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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253 /*-------------------------------------------------------------------------*\
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254 * Just call tm methods
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255 \*-------------------------------------------------------------------------*/
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256 static int meth_settimeout(lua_State *L) {
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257 p_udp udp = (p_udp) auxiliar_checkgroup(L, "udp{any}", 1);
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258 return timeout_meth_settimeout(L, &udp->tm);
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259 }
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260
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261 /*-------------------------------------------------------------------------*\
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262 * Turns a master udp object into a client object.
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263 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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264 static int meth_setpeername(lua_State *L) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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265 p_udp udp = (p_udp) auxiliar_checkgroup(L, "udp{any}", 1);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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266 p_timeout tm = &udp->tm;
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267 const char *address = luaL_checkstring(L, 2);
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268 int connecting = strcmp(address, "*");
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269 unsigned short port = connecting ?
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270 (unsigned short) luaL_checknumber(L, 3) :
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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271 (unsigned short) luaL_optnumber(L, 3, 0);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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272 const char *err = inet_tryconnect(&udp->sock, address, port, tm);
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273 if (err) {
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274 lua_pushnil(L);
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275 lua_pushstring(L, err);
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276 return 2;
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277 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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278 /* change class to connected or unconnected depending on address */
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279 if (connecting) auxiliar_setclass(L, "udp{connected}", 1);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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280 else auxiliar_setclass(L, "udp{unconnected}", 1);
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281 lua_pushnumber(L, 1);
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282 return 1;
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283 }
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284
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285 /*-------------------------------------------------------------------------*\
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286 * Closes socket used by object
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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287 \*-------------------------------------------------------------------------*/
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288 static int meth_close(lua_State *L) {
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289 p_udp udp = (p_udp) auxiliar_checkgroup(L, "udp{any}", 1);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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290 socket_destroy(&udp->sock);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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291 lua_pushnumber(L, 1);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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292 return 1;
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293 }
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294
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295 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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296 * Turns a master object into a server object
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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297 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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298 static int meth_setsockname(lua_State *L) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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299 p_udp udp = (p_udp) auxiliar_checkclass(L, "udp{unconnected}", 1);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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300 const char *address = luaL_checkstring(L, 2);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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301 unsigned short port = (unsigned short) luaL_checknumber(L, 3);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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302 const char *err = inet_trybind(&udp->sock, address, port);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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303 if (err) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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304 lua_pushnil(L);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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305 lua_pushstring(L, err);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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306 return 2;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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307 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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308 lua_pushnumber(L, 1);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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309 return 1;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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310 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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311
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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312 /*=========================================================================*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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313 * Library functions
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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314 \*=========================================================================*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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315 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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316 * Creates a master udp object
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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317 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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318 static int global_create(lua_State *L) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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319 t_socket sock;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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320 const char *err = inet_trycreate(&sock, SOCK_DGRAM);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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321 /* try to allocate a system socket */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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diff changeset
322 if (!err) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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diff changeset
323 /* allocate tcp object */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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diff changeset
324 p_udp udp = (p_udp) lua_newuserdata(L, sizeof(t_udp));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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diff changeset
325 auxiliar_setclass(L, "udp{unconnected}", -1);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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parents:
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326 /* initialize remaining structure fields */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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327 socket_setnonblocking(&sock);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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diff changeset
328 udp->sock = sock;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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diff changeset
329 timeout_init(&udp->tm, -1, -1);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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diff changeset
330 return 1;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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diff changeset
331 } else {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
332 lua_pushnil(L);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
333 lua_pushstring(L, err);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
334 return 2;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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335 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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diff changeset
336 }