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<HTML><HEAD><TITLE>NETBOOK - Code Sample EXM2</TITLE></HEAD><BODY BGCOLOR="#FFFFFF"><P><TABLE BORDER="0" CELLPADDING="5" CELLSPACING="0" WIDTH="600"><TR> <TD WIDTH="112" VALIGN="TOP" BGCOLOR="#759AC4" CELLPADDING="0"><img src="../pgmatrls/sidebar.gif" width="112" height="410" usemap="#sidebar" ismap alt="" border="0" ><map name="sidebar"><area shape="rect" coords="0,325,100,364" href="../othrpags/page22.htm" ><area shape="rect" coords="0,287,100,326" href="../othrpags/page17.htm" ><area shape="rect" coords="0,248,100,287" href="../othrpags/page18.htm" ><area shape="rect" coords="0,364,100,404" href="../othrpags/code.htm" ><area shape="rect" coords="0,210,100,248" href="../othrpags/page15.htm" ><area shape="rect" coords="0,170,100,210" href="../othrpags/page03.htm" ><area shape="rect" coords="0,132,100,170" href="../othrpags/page10.htm" ><area shape="rect" coords="0,93,100,132" href="../index.htm" ><AREA SHAPE="DEFAULT" NOHREF></map> </TD><TD WIDTH="420" VALIGN="TOP" BGCOLOR="#FFFFFF"><CENTER><H1>Code Sample EXM2</H1></CENTER><PRE>/* chatserver.c */#include <stdlib.h>#include <stdio.h>#include <cnaiapi.h>#define BUFFSIZE 256#define INPUT_PROMPT "Input > "#define RECEIVED_PROMPT "Received> "int recvln(connection, char *, int);int readln(char *, int);/*----------------------------------------------------------------------- * * Program: chatserver * Purpose: wait for a connection from a chatclient & allow users to chat * Usage: chatserver <appnum> * *----------------------------------------------------------------------- */intmain(int argc, char *argv[]){ connection conn; int len; char buff[BUFFSIZE]; if (argc != 2) { (void) fprintf(stderr, "usage: %s <appnum>\n", argv[0]); exit(1); } (void) printf("Chat Server Waiting For Connection.\n"); /* wait for a connection from a chatclient */ conn = await_contact((appnum) atoi(argv[1])); if (conn < 0) exit(1); (void) printf("Chat Connection Established.\n"); /* iterate, reading from the client and the local user */ while((len = recvln(conn, buff, BUFFSIZE)) > 0) { (void) printf(RECEIVED_PROMPT); (void) fflush(stdout); (void) write(STDOUT_FILENO, buff, len); /* send a line to the chatclient */ (void) printf(INPUT_PROMPT); (void) fflush(stdout); if ((len = readln(buff, BUFFSIZE)) < 1) break; buff[len - 1] = '\n'; (void) send(conn, buff, len, 0); } /* iteration ends when EOF found on stdin or chat connection */ (void) send_eof(conn); (void) printf("\nChat Connection Closed.\n\n"); return 0;}</PRE><p><p><p><HR WIDTH=89% ALIGN=CENTER SIZE=2><center><h2>Item information</h2></center><p><TABLE CELLSPACING="0"><TD ALIGN="LEFT" VALIGN="TOP">Caption:</TD><TD ALIGN="LEFT"></TD><TR><TD ALIGN="LEFT">Code sample:</TD><TD ALIGN="LEFT">EXM2</td><tr><TD ALIGN="LEFT">Type:</TD><TD ALIGN="LEFT">code sample</TD><TR><TD ALIGN="LEFT">Item:</TD><TD ALIGN="LEFT"><A HREF="./codeEXM2.txt">Code sample EXM2</A> without caption</TD><TR><TD ALIGN="LEFT">Keywords:</TD><TD ALIGN="LEFT">network API</TR></TABLE></tr></TABLE></BODY></HTML>⌨️ 快捷键说明
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