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sockutils.h

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00001 /*
00002  * Copyright (c) 2002 - 2003
00003  * NetGroup, Politecnico di Torino (Italy)
00004  * All rights reserved.
00005  * 
00006  * Redistribution and use in source and binary forms, with or without 
00007  * modification, are permitted provided that the following conditions 
00008  * are met:
00009  * 
00010  * 1. Redistributions of source code must retain the above copyright 
00011  * notice, this list of conditions and the following disclaimer.
00012  * 2. Redistributions in binary form must reproduce the above copyright 
00013  * notice, this list of conditions and the following disclaimer in the 
00014  * documentation and/or other materials provided with the distribution. 
00015  * 3. Neither the name of the Politecnico di Torino nor the names of its 
00016  * contributors may be used to endorse or promote products derived from 
00017  * this software without specific prior written permission. 
00018  * 
00019  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
00020  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
00021  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
00022  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
00023  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
00024  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
00025  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
00026  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
00027  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
00028  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
00029  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00030  * 
00031  */
00032 
00033 
00034 #ifndef __SOCKUTILS_H__
00035 #define __SOCKUTILS_H__
00036 
00037 
00038 
00039 // Definition for Microsoft Visual Studio
00040 #if _MSC_VER > 1000
00041 #pragma once
00042 #endif
00043 
00044 #ifdef WIN32
00045 #include <winsock2.h>
00046 #include <ws2tcpip.h>
00047 #else
00048 #include <sys/types.h>
00049 #include <sys/socket.h>
00050 #include <netdb.h>  /* DNS lookup */
00051 #include <unistd.h> /* close() */
00052 #endif
00053 
00054 
00055 
00056 // Some minor differences between UNIX and Win32
00057 #ifdef WIN32
00058 
00063     #define SOCKET unsigned int 
00064 #else
00065 
00071     #define SOCKET int
00072 
00078     #define closesocket(a) close(a) 
00079 #endif
00080 
00081 
00082 
00083 
00084 
00085 // All this stuff is private
00107 #ifdef NDEBUG
00108 #define SOCK_ASSERT(msg, expr) ((void)0)
00109 #else
00110     #include <assert.h>
00111     #if (defined(WIN32) && defined(_MSC_VER))
00112         #include <crtdbg.h>             // for _CrtDbgReport
00113         // Use MessageBox(NULL, msg, "warning", MB_OK)' instead of the other calls if you want to debug a Win32 service
00114         // Remember to activate the 'allow service to interact with desktop' flag of the service
00115         #define SOCK_ASSERT(msg, expr) { _CrtDbgReport(_CRT_WARN, NULL, 0, NULL, "%s\n", msg); fprintf(stderr, "%s\n", msg); assert(expr); }
00116     #else
00117         #define SOCK_ASSERT(msg, expr) { fprintf(stderr, "%s\n", msg); assert(expr); }
00118     #endif
00119 #endif
00120 
00121 
00122 
00123 
00124 /****************************************************
00125  *                                                  *
00126  * Exported functions / definitions                 *
00127  *                                                  *
00128  ****************************************************/
00129 
00130 #define SOCKBUF_CHECKONLY 1     
00131 #define SOCKBUF_BUFFERIZE 0     
00133 #define SOCKOPEN_CLIENT 0       
00134 #define SOCKOPEN_SERVER 1       
00136 #define SOCK_ERRBUF_SIZE 256     // end of private documentation
00141 
00142 
00143 #ifdef __cplusplus
00144 extern "C" {
00145 #endif
00146 
00147 
00148 void sock_geterror(const char *caller, char *string, int size);
00149 int sock_init(char *errbuf);
00150 void sock_cleanup();
00151 int sock_validaddr(const char *address, const char *port,
00152                         struct addrinfo *hints, struct addrinfo **addrinfo, char *errbuf);
00153 int sock_recv(SOCKET socket, char *buffer, int size, char *errbuf);
00154 int sock_recv_dgram(SOCKET sock, char *buffer, int size, char *errbuf);
00155 int sock_open(struct addrinfo *addrinfo, int server, int nconn, char *errbuf);
00156 int sock_close(SOCKET sock, char *errbuf);
00157 
00158 int sock_send(SOCKET socket, const char *buffer, int size, char *errbuf);
00159 int sock_bufferize(const char *buffer, int size, char *tempbuf, int *offset, int totsize, int checkonly, char *errbuf);
00160 int sock_discard(SOCKET socket, int size, char *errbuf);
00161 int sock_check_hostlist(char *hostlist, const char *sep, struct sockaddr_storage *from, char *errbuf);
00162 int sock_cmpaddr(struct sockaddr_storage *first, struct sockaddr_storage *second);
00163 
00164 
00165 #ifdef __cplusplus
00166 }
00167 #endif
00168 
00169 
00170 #endif
00171 

documentation. Copyright (c) 2002-2003 Politecnico di Torino. All rights reserved.