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 #if _MSC_VER > 1000 00039 #pragma once 00040 #endif 00041 00042 00043 #ifdef WIN32 00044 /* Prevents a compiler warning in case this was already defined (to avoid that */ 00045 /* windows.h includes winsock.h */ 00046 #ifdef _WINSOCKAPI_ 00047 #undef _WINSOCKAPI_ 00048 #endif 00049 #include <winsock2.h> 00050 #include <ws2tcpip.h> 00051 #else 00052 #include <stdio.h> 00053 #include <string.h> /* for memset() */ 00054 #include <sys/types.h> 00055 #include <sys/socket.h> 00056 #include <netdb.h> /* DNS lookup */ 00057 #include <unistd.h> /* close() */ 00058 #include <errno.h> /* errno() */ 00059 #include <netinet/in.h> /* for sockaddr_in, in BSD at least */ 00060 #include <arpa/inet.h> 00061 #include <net/if.h> 00062 #endif 00063 00064 00087 // Some minor differences between UNIX and Win32 00088 #ifdef WIN32 00089 00094 #define SOCKET unsigned int 00095 #else 00096 00102 #define SOCKET int 00103 00109 #define closesocket(a) close(a) 00110 #endif 00111 00112 00113 00114 00115 00132 #ifdef NDEBUG 00133 #define SOCK_ASSERT(msg, expr) ((void)0) 00134 #else 00135 #include <assert.h> 00136 #if (defined(WIN32) && defined(_MSC_VER)) 00137 #include <crtdbg.h> // for _CrtDbgReport 00138 // Use MessageBox(NULL, msg, "warning", MB_OK)' instead of the other calls if you want to debug a Win32 service 00139 // Remember to activate the 'allow service to interact with desktop' flag of the service 00140 #define SOCK_ASSERT(msg, expr) { _CrtDbgReport(_CRT_WARN, NULL, 0, NULL, "%s\n", msg); fprintf(stderr, "%s\n", msg); assert(expr); } 00141 #else 00142 #define SOCK_ASSERT(msg, expr) { fprintf(stderr, "%s\n", msg); assert(expr); } 00143 #endif 00144 #endif 00145 00146 00147 00148 00149 /**************************************************** 00150 * * 00151 * Exported functions / definitions * 00152 * * 00153 ****************************************************/ 00154 00156 #define SOCKBUF_CHECKONLY 1 00157 00158 #define SOCKBUF_BUFFERIZE 0 00159 00161 #define SOCKOPEN_CLIENT 0 00162 00163 #define SOCKOPEN_SERVER 1 00164 00166 #define SOCK_RECEIVEALL_NO 0 00167 00168 #define SOCK_RECEIVEALL_YES 1 00169 00170 00177 #ifdef __cplusplus 00178 extern "C" { 00179 #endif 00180 00181 00182 00192 int sock_init(char *errbuf, int errbuflen); 00193 void sock_cleanup(); 00194 // It is 'public' because there are calls (like accept() ) which are not managed from inside the sockutils files 00195 void sock_geterror(const char *caller, char *errbuf, int errbufsize); 00196 int sock_initaddress(const char *address, const char *port, 00197 struct addrinfo *hints, struct addrinfo **addrinfo, char *errbuf, int errbuflen); 00198 int sock_recv(SOCKET socket, char *buffer, int size, int receiveall, char *errbuf, int errbuflen); 00199 SOCKET sock_open(struct addrinfo *addrinfo, int server, int nconn, char *errbuf, int errbuflen); 00200 int sock_close(SOCKET sock, char *errbuf, int errbuflen); 00201 00202 int sock_send(SOCKET socket, const char *buffer, int size, char *errbuf, int errbuflen); 00203 int sock_bufferize(const char *buffer, int size, char *tempbuf, int *offset, int totsize, int checkonly, char *errbuf, int errbuflen); 00204 int sock_discard(SOCKET socket, int size, char *errbuf, int errbuflen); 00205 int sock_check_hostlist(char *hostlist, const char *sep, struct sockaddr_storage *from, char *errbuf, int errbuflen); 00206 int sock_cmpaddr(struct sockaddr_storage *first, struct sockaddr_storage *second); 00207 00208 int sock_getmyinfo(SOCKET sock, char *address, int addrlen, char *port, int portlen, int flags, char *errbuf, int errbuflen); 00209 00210 int sock_getascii_addrport(const struct sockaddr_storage *sockaddr, char *address, int addrlen, char *port, int portlen, int flags, char *errbuf, int errbuflen); 00211 int sock_present2network(const char *address, struct sockaddr_storage *sockaddr, int addr_family, char *errbuf, int errbuflen); 00212 00213 00214 #ifdef __cplusplus 00215 } 00216 #endif 00217 00218 00231 #endif
documentation. Copyright (c) 2002-2003 Politecnico di Torino. All rights reserved.