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<HTML><HEAD><TITLE>NETBOOK - Code Sample API4</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 API4</H1></CENTER><PRE>/* appname_to_appnum.c */#include <cnaiapi.h>/*----------------------------------------------------------------------- * appname_to_appnum - look up a port by service name *----------------------------------------------------------------------- */appnumappname_to_appnum(char *appname){ struct servent *sp; appnum port; cnaiapi_init();#if defined(LINUX) || defined(SOLARIS) pthread_mutex_lock(&appname_mutex);#elif defined(WIN32) WaitForSingleObject(appname_mutex, INFINITE);#endif sp = getservbyname(appname, "tcp"); if (sp == NULL) {#if defined(LINUX) || defined(SOLARIS) pthread_mutex_unlock(&appname_mutex);#elif defined(WIN32) ReleaseMutex(appname_mutex);#endif return -1; } port = ntohs(sp->s_port);#if defined(LINUX) || defined(SOLARIS) pthread_mutex_unlock(&appname_mutex);#elif defined(WIN32) ReleaseMutex(appname_mutex);#endif return port;}</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">API4</td><tr><TD ALIGN="LEFT">Type:</TD><TD ALIGN="LEFT">code sample</TD><TR><TD ALIGN="LEFT">Item:</TD><TD ALIGN="LEFT"><A HREF="./codeAPI4.txt">Code sample API4</A> without caption</TD><TR><TD ALIGN="LEFT">Keywords:</TD><TD ALIGN="LEFT">Java, applet</TR></TABLE></tr></TABLE></BODY></HTML>⌨️ 快捷键说明
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