<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en_US" xml:lang="en_US">
<head>
<title>kdesu: process.cpp Source File (kdesu)</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta http-equiv="Content-Style-Type" content="text/css" />
<meta http-equiv="pics-label" content='(pics-1.1 "http://www.icra.org/ratingsv02.html" comment "ICRAonline DE v2.0" l gen true for "http://www.kde.org" r (nz 1 vz 1 lz 1 oz 1 cb 1) "http://www.rsac.org/ratingsv01.html" l gen true for "http://www.kde.org" r (n 0 s 0 v 0 l 0))' />
<meta name="trademark" content="KDE e.V." />
<meta name="description" content="K Desktop Environment Homepage, KDE.org" />
<meta name="MSSmartTagsPreventParsing" content="true" />
<meta name="robots" content="all" />
<link rel="shortcut icon" href="../../favicon.ico" />
<link rel="stylesheet" media="screen" type="text/css" title="APIDOX" href="doxygen.css" />
</head>
<body>
<div id="nav_header_top" align="right">
<a href="#content" class="doNotDisplay" accesskey="2">Skip to main content ::</a>
<a href="../.."><img id="nav_header_logo" alt="Home" align="left" src="../../kde_gear_64.png" border="0" /></a>
<span class="doNotDisplay">::</span>
<div id="nav_header_title" align="left">KDE API Reference</div>
</div>
<div id="nav_header_bottom" align="right">
<span class="doNotDisplay">:: <a href="#navigation" accesskey="5">Skip to Link Menu</a><br/></span>
<div id="nav_header_bottom_right" style="text-align: left;">
/ <a href="../..">API Reference</a>
/ <a href=".">kdesu</a>
</div>
</div>
<table id="main" border="0" cellpadding="0" cellspacing="0" width="100%">
<tr>
<td valign="top" class="menuheader" height="0"></td>
<td id="contentcolumn" valign="top" rowspan="2" >
<div id="content" style="padding-top: 0px;"><div style="width:100%; margin: 0px; padding: 0px;">
<a name="content"></a>
<!-- Generated by Doxygen 1.7.4 -->
<div class="header">
<div class="headertitle">
<div class="title">process.cpp</div> </div>
</div>
<div class="contents">
<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* vi: ts=8 sts=4 sw=4</span>
<a name="l00002"></a>00002 <span class="comment"> *</span>
<a name="l00003"></a>00003 <span class="comment"> * $Id: process.cpp 802658 2008-04-30 08:30:03Z lunakl $</span>
<a name="l00004"></a>00004 <span class="comment"> *</span>
<a name="l00005"></a>00005 <span class="comment"> * This file is part of the KDE project, module kdesu.</span>
<a name="l00006"></a>00006 <span class="comment"> * Copyright (C) 1999,2000 Geert Jansen <jansen@kde.org></span>
<a name="l00007"></a>00007 <span class="comment"> * </span>
<a name="l00008"></a>00008 <span class="comment"> * This file contains code from TEShell.C of the KDE konsole. </span>
<a name="l00009"></a>00009 <span class="comment"> * Copyright (c) 1997,1998 by Lars Doelle <lars.doelle@on-line.de> </span>
<a name="l00010"></a>00010 <span class="comment"> *</span>
<a name="l00011"></a>00011 <span class="comment"> * This is free software; you can use this library under the GNU Library </span>
<a name="l00012"></a>00012 <span class="comment"> * General Public License, version 2. See the file "COPYING.LIB" for the </span>
<a name="l00013"></a>00013 <span class="comment"> * exact licensing terms.</span>
<a name="l00014"></a>00014 <span class="comment"> *</span>
<a name="l00015"></a>00015 <span class="comment"> * process.cpp: Functionality to build a front end to password asking</span>
<a name="l00016"></a>00016 <span class="comment"> * terminal programs.</span>
<a name="l00017"></a>00017 <span class="comment"> */</span>
<a name="l00018"></a>00018
<a name="l00019"></a>00019 <span class="preprocessor">#include <config.h></span>
<a name="l00020"></a>00020
<a name="l00021"></a>00021 <span class="preprocessor">#include <stdio.h></span>
<a name="l00022"></a>00022 <span class="preprocessor">#include <stdlib.h></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <unistd.h></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include <fcntl.h></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <signal.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <errno.h></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <string.h></span>
<a name="l00028"></a>00028 <span class="preprocessor">#include <termios.h></span>
<a name="l00029"></a>00029 <span class="preprocessor">#include <signal.h></span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="preprocessor">#include <sys/types.h></span>
<a name="l00032"></a>00032 <span class="preprocessor">#include <sys/wait.h></span>
<a name="l00033"></a>00033 <span class="preprocessor">#include <sys/stat.h></span>
<a name="l00034"></a>00034 <span class="preprocessor">#include <sys/time.h></span>
<a name="l00035"></a>00035 <span class="preprocessor">#include <sys/resource.h></span>
<a name="l00036"></a>00036 <span class="preprocessor">#include <sys/ioctl.h></span>
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <span class="preprocessor">#if defined(__SVR4) && defined(sun)</span>
<a name="l00039"></a>00039 <span class="preprocessor"></span><span class="preprocessor">#include <stropts.h></span>
<a name="l00040"></a>00040 <span class="preprocessor">#include <sys/stream.h></span>
<a name="l00041"></a>00041 <span class="preprocessor">#endif</span>
<a name="l00042"></a>00042 <span class="preprocessor"></span>
<a name="l00043"></a>00043 <span class="preprocessor">#ifdef HAVE_SYS_SELECT_H</span>
<a name="l00044"></a>00044 <span class="preprocessor"></span><span class="preprocessor">#include <sys/select.h></span> <span class="comment">// Needed on some systems.</span>
<a name="l00045"></a>00045 <span class="preprocessor">#endif</span>
<a name="l00046"></a>00046 <span class="preprocessor"></span>
<a name="l00047"></a>00047 <span class="preprocessor">#include <qglobal.h></span>
<a name="l00048"></a>00048 <span class="preprocessor">#include <qcstring.h></span>
<a name="l00049"></a>00049 <span class="preprocessor">#include <qfile.h></span>
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="preprocessor">#include <kconfig.h></span>
<a name="l00052"></a>00052 <span class="preprocessor">#include <kdebug.h></span>
<a name="l00053"></a>00053 <span class="preprocessor">#include <kstandarddirs.h></span>
<a name="l00054"></a>00054
<a name="l00055"></a>00055 <span class="preprocessor">#include "process.h"</span>
<a name="l00056"></a>00056 <span class="preprocessor">#include "kdesu_pty.h"</span>
<a name="l00057"></a>00057 <span class="preprocessor">#include "kcookie.h"</span>
<a name="l00058"></a>00058
<a name="l00059"></a><a class="code" href="classPtyProcess.html#a131b9711d9b7940e23a8453f56619bfa">00059</a> <span class="keywordtype">int</span> <a class="code" href="classPtyProcess.html#a131b9711d9b7940e23a8453f56619bfa" title="Wait ms miliseconds (ie.">PtyProcess::waitMS</a>(<span class="keywordtype">int</span> fd,<span class="keywordtype">int</span> ms)
<a name="l00060"></a>00060 {
<a name="l00061"></a>00061 <span class="keyword">struct </span>timeval tv;
<a name="l00062"></a>00062 tv.tv_sec = 0;
<a name="l00063"></a>00063 tv.tv_usec = 1000*ms;
<a name="l00064"></a>00064
<a name="l00065"></a>00065 fd_set fds;
<a name="l00066"></a>00066 FD_ZERO(&fds);
<a name="l00067"></a>00067 FD_SET(fd,&fds);
<a name="l00068"></a>00068 <span class="keywordflow">return</span> select(fd+1, &fds, 0L, 0L, &tv);
<a name="l00069"></a>00069 }
<a name="l00070"></a>00070
<a name="l00071"></a>00071 <span class="comment">/*</span>
<a name="l00072"></a>00072 <span class="comment">** Basic check for the existence of @p pid.</span>
<a name="l00073"></a>00073 <span class="comment">** Returns true iff @p pid is an extant process.</span>
<a name="l00074"></a>00074 <span class="comment">*/</span>
<a name="l00075"></a><a class="code" href="classPtyProcess.html#a6c8c5e6eb93c0c9378bf21d94f60d1aa">00075</a> <span class="keywordtype">bool</span> <a class="code" href="classPtyProcess.html#a6c8c5e6eb93c0c9378bf21d94f60d1aa" title="Basic check for the existence of pid.">PtyProcess::checkPid</a>(pid_t pid)
<a name="l00076"></a>00076 {
<a name="l00077"></a>00077 KConfig* config = KGlobal::config();
<a name="l00078"></a>00078 config->setGroup(<span class="stringliteral">"super-user-command"</span>);
<a name="l00079"></a>00079 <a class="codeRef" href="qstring.html">QString</a> superUserCommand = config->readEntry(<span class="stringliteral">"super-user-command"</span>, DEFAULT_SUPER_USER_COMMAND);
<a name="l00080"></a>00080 <span class="comment">//sudo does not accept signals from user so we except it</span>
<a name="l00081"></a>00081 <span class="keywordflow">if</span> (superUserCommand == <span class="stringliteral">"sudo"</span>) {
<a name="l00082"></a>00082 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00083"></a>00083 } <span class="keywordflow">else</span> {
<a name="l00084"></a>00084 <span class="keywordflow">return</span> kill(pid,0) == 0;
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086 }
<a name="l00087"></a>00087
<a name="l00088"></a>00088 <span class="comment">/*</span>
<a name="l00089"></a>00089 <span class="comment">** Check process exit status for process @p pid.</span>
<a name="l00090"></a>00090 <span class="comment">** On error (no child, no exit), return Error (-1).</span>
<a name="l00091"></a>00091 <span class="comment">** If child @p pid has exited, return its exit status,</span>
<a name="l00092"></a>00092 <span class="comment">** (which may be zero).</span>
<a name="l00093"></a>00093 <span class="comment">** If child @p has not exited, return NotExited (-2).</span>
<a name="l00094"></a>00094 <span class="comment">*/</span>
<a name="l00095"></a>00095
<a name="l00096"></a>00096 <span class="keywordtype">int</span> PtyProcess::checkPidExited(pid_t pid)
<a name="l00097"></a>00097 {
<a name="l00098"></a>00098 <span class="keywordtype">int</span> state, ret;
<a name="l00099"></a>00099 ret = waitpid(pid, &state, WNOHANG);
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="keywordflow">if</span> (ret < 0)
<a name="l00102"></a>00102 {
<a name="l00103"></a>00103 kdError(900) << k_lineinfo << <span class="stringliteral">"waitpid(): "</span> << perror << <span class="stringliteral">"\n"</span>;
<a name="l00104"></a>00104 <span class="keywordflow">return</span> Error;
<a name="l00105"></a>00105 }
<a name="l00106"></a>00106 <span class="keywordflow">if</span> (ret == pid)
<a name="l00107"></a>00107 {
<a name="l00108"></a>00108 <span class="keywordflow">if</span> (WIFEXITED(state))
<a name="l00109"></a>00109 <span class="keywordflow">return</span> WEXITSTATUS(state);
<a name="l00110"></a>00110 <span class="keywordflow">return</span> Killed;
<a name="l00111"></a>00111 }
<a name="l00112"></a>00112
<a name="l00113"></a>00113 <span class="keywordflow">return</span> NotExited;
<a name="l00114"></a>00114 }
<a name="l00115"></a>00115
<a name="l00116"></a>00116
<a name="l00117"></a>00117 <span class="keyword">class </span>PtyProcess::PtyProcessPrivate
<a name="l00118"></a>00118 {
<a name="l00119"></a>00119 <span class="keyword">public</span>:
<a name="l00120"></a>00120 <a class="codeRef" href="qvaluelist.html">QCStringList</a> env;
<a name="l00121"></a>00121 };
<a name="l00122"></a>00122
<a name="l00123"></a>00123
<a name="l00124"></a>00124 PtyProcess::PtyProcess()
<a name="l00125"></a>00125 {
<a name="l00126"></a>00126 m_bTerminal = <span class="keyword">false</span>;
<a name="l00127"></a>00127 m_bErase = <span class="keyword">false</span>;
<a name="l00128"></a>00128 m_pPTY = 0L;
<a name="l00129"></a>00129 d = <span class="keyword">new</span> PtyProcessPrivate;
<a name="l00130"></a>00130 }
<a name="l00131"></a>00131
<a name="l00132"></a>00132
<a name="l00133"></a>00133 <span class="keywordtype">int</span> PtyProcess::init()
<a name="l00134"></a>00134 {
<a name="l00135"></a>00135 <span class="keyword">delete</span> m_pPTY;
<a name="l00136"></a>00136 m_pPTY = <span class="keyword">new</span> <a class="code" href="classPTY.html" title="PTY compatibility routines.">PTY</a>();
<a name="l00137"></a>00137 m_Fd = m_pPTY-><a class="code" href="classPTY.html#af38d9791c999dd7a86dfd2444c1eaf1c" title="Allocate a pty.">getpt</a>();
<a name="l00138"></a>00138 <span class="keywordflow">if</span> (m_Fd < 0)
<a name="l00139"></a>00139 <span class="keywordflow">return</span> -1;
<a name="l00140"></a>00140 <span class="keywordflow">if</span> ((m_pPTY-><a class="code" href="classPTY.html#a6adc9b83c6f996dac1d1741774ad6d71" title="Grant access to the slave side.">grantpt</a>() < 0) || (m_pPTY-><a class="code" href="classPTY.html#a3232c6b84835017f190b0ff05069e8d4" title="Unlock the slave side.">unlockpt</a>() < 0))
<a name="l00141"></a>00141 {
<a name="l00142"></a>00142 kdError(900) << k_lineinfo << <span class="stringliteral">"Master setup failed.\n"</span>;
<a name="l00143"></a>00143 m_Fd = -1;
<a name="l00144"></a>00144 <span class="keywordflow">return</span> -1;
<a name="l00145"></a>00145 }
<a name="l00146"></a>00146 m_TTY = m_pPTY-><a class="code" href="classPTY.html#a076241ed7bb6c66a4a5d642ff08b3a5a" title="Get the slave name.">ptsname</a>();
<a name="l00147"></a>00147 m_Inbuf.<a class="codeRef" href="qcstring.html#resize">resize</a>(0);
<a name="l00148"></a>00148 <span class="keywordflow">return</span> 0;
<a name="l00149"></a>00149 }
<a name="l00150"></a>00150
<a name="l00151"></a>00151
<a name="l00152"></a>00152 PtyProcess::~PtyProcess()
<a name="l00153"></a>00153 {
<a name="l00154"></a>00154 <span class="keyword">delete</span> m_pPTY;
<a name="l00155"></a>00155 <span class="keyword">delete</span> d;
<a name="l00156"></a>00156 }
<a name="l00157"></a>00157
<a name="l00159"></a><a class="code" href="classPtyProcess.html#ab0ac90d35272df6dc67a9fed3e9cea47">00159</a> <span class="keywordtype">void</span> <a class="code" href="classPtyProcess.html#ab0ac90d35272df6dc67a9fed3e9cea47" title="Set additinal environment variables.">PtyProcess::setEnvironment</a>( <span class="keyword">const</span> <a class="codeRef" href="qvaluelist.html">QCStringList</a> &env )
<a name="l00160"></a>00160 {
<a name="l00161"></a>00161 d->env = env;
<a name="l00162"></a>00162 }
<a name="l00163"></a>00163
<a name="l00164"></a>00164 <span class="keyword">const</span> <a class="codeRef" href="qvaluelist.html">QCStringList</a>& PtyProcess::environment()<span class="keyword"> const</span>
<a name="l00165"></a>00165 <span class="keyword"></span>{
<a name="l00166"></a>00166 <span class="keywordflow">return</span> d->env;
<a name="l00167"></a>00167 }
<a name="l00168"></a>00168
<a name="l00169"></a>00169 <span class="comment">/*</span>
<a name="l00170"></a>00170 <span class="comment"> * Read one line of input. The terminal is in canonical mode, so you always</span>
<a name="l00171"></a>00171 <span class="comment"> * read a line at at time, but it's possible to receive multiple lines in</span>
<a name="l00172"></a>00172 <span class="comment"> * one time.</span>
<a name="l00173"></a>00173 <span class="comment"> */</span>
<a name="l00174"></a>00174
<a name="l00175"></a><a class="code" href="classPtyProcess.html#a390666b66acce75e8d1baf3df72422fe">00175</a> <a class="codeRef" href="qcstring.html">QCString</a> <a class="code" href="classPtyProcess.html#a390666b66acce75e8d1baf3df72422fe" title="Reads a line from the program's standard out.">PtyProcess::readLine</a>(<span class="keywordtype">bool</span> block)
<a name="l00176"></a>00176 {
<a name="l00177"></a>00177 <span class="keywordtype">int</span> pos;
<a name="l00178"></a>00178 <a class="codeRef" href="qcstring.html">QCString</a> ret;
<a name="l00179"></a>00179
<a name="l00180"></a>00180 <span class="keywordflow">if</span> (!m_Inbuf.<a class="codeRef" href="qcstring.html#isEmpty">isEmpty</a>())
<a name="l00181"></a>00181 {
<a name="l00182"></a>00182 pos = m_Inbuf.<a class="codeRef" href="qcstring.html#find">find</a>(<span class="charliteral">'\n'</span>);
<a name="l00183"></a>00183 <span class="keywordflow">if</span> (pos == -1)
<a name="l00184"></a>00184 {
<a name="l00185"></a>00185 ret = m_Inbuf;
<a name="l00186"></a>00186 m_Inbuf.<a class="codeRef" href="qcstring.html#resize">resize</a>(0);
<a name="l00187"></a>00187 } <span class="keywordflow">else</span>
<a name="l00188"></a>00188 {
<a name="l00189"></a>00189 ret = m_Inbuf.<a class="codeRef" href="qcstring.html#left">left</a>(pos);
<a name="l00190"></a>00190 m_Inbuf = m_Inbuf.<a class="codeRef" href="qcstring.html#mid">mid</a>(pos+1);
<a name="l00191"></a>00191 }
<a name="l00192"></a>00192 <span class="keywordflow">return</span> ret;
<a name="l00193"></a>00193 }
<a name="l00194"></a>00194
<a name="l00195"></a>00195 <span class="keywordtype">int</span> flags = fcntl(m_Fd, F_GETFL);
<a name="l00196"></a>00196 <span class="keywordflow">if</span> (flags < 0)
<a name="l00197"></a>00197 {
<a name="l00198"></a>00198 kdError(900) << k_lineinfo << <span class="stringliteral">"fcntl(F_GETFL): "</span> << perror << <span class="stringliteral">"\n"</span>;
<a name="l00199"></a>00199 <span class="keywordflow">return</span> ret;
<a name="l00200"></a>00200 }
<a name="l00201"></a>00201 <span class="keywordtype">int</span> oflags = flags;
<a name="l00202"></a>00202 <span class="keywordflow">if</span> (block)
<a name="l00203"></a>00203 flags &= ~O_NONBLOCK;
<a name="l00204"></a>00204 <span class="keywordflow">else</span>
<a name="l00205"></a>00205 flags |= O_NONBLOCK;
<a name="l00206"></a>00206
<a name="l00207"></a>00207 <span class="keywordflow">if</span> ((flags != oflags) && (fcntl(m_Fd, F_SETFL, flags) < 0))
<a name="l00208"></a>00208 {
<a name="l00209"></a>00209 <span class="comment">// We get an error here when the child process has closed </span>
<a name="l00210"></a>00210 <span class="comment">// the file descriptor already.</span>
<a name="l00211"></a>00211 <span class="keywordflow">return</span> ret;
<a name="l00212"></a>00212 }
<a name="l00213"></a>00213
<a name="l00214"></a>00214 <span class="keywordtype">int</span> nbytes;
<a name="l00215"></a>00215 <span class="keywordtype">char</span> buf[256];
<a name="l00216"></a>00216 <span class="keywordflow">while</span> (1)
<a name="l00217"></a>00217 {
<a name="l00218"></a>00218 nbytes = read(m_Fd, buf, 255);
<a name="l00219"></a>00219 <span class="keywordflow">if</span> (nbytes == -1)
<a name="l00220"></a>00220 {
<a name="l00221"></a>00221 <span class="keywordflow">if</span> (errno == EINTR)
<a name="l00222"></a>00222 <span class="keywordflow">continue</span>;
<a name="l00223"></a>00223 <span class="keywordflow">else</span> <span class="keywordflow">break</span>;
<a name="l00224"></a>00224 }
<a name="l00225"></a>00225 <span class="keywordflow">if</span> (nbytes == 0)
<a name="l00226"></a>00226 <span class="keywordflow">break</span>; <span class="comment">// eof</span>
<a name="l00227"></a>00227
<a name="l00228"></a>00228 buf[nbytes] = <span class="charliteral">'\000'</span>;
<a name="l00229"></a>00229 m_Inbuf += buf;
<a name="l00230"></a>00230
<a name="l00231"></a>00231 pos = m_Inbuf.<a class="codeRef" href="qcstring.html#find">find</a>(<span class="charliteral">'\n'</span>);
<a name="l00232"></a>00232 <span class="keywordflow">if</span> (pos == -1)
<a name="l00233"></a>00233 {
<a name="l00234"></a>00234 ret = m_Inbuf;
<a name="l00235"></a>00235 m_Inbuf.<a class="codeRef" href="qcstring.html#resize">resize</a>(0);
<a name="l00236"></a>00236 } <span class="keywordflow">else</span>
<a name="l00237"></a>00237 {
<a name="l00238"></a>00238 ret = m_Inbuf.<a class="codeRef" href="qcstring.html#left">left</a>(pos);
<a name="l00239"></a>00239 m_Inbuf = m_Inbuf.<a class="codeRef" href="qcstring.html#mid">mid</a>(pos+1);
<a name="l00240"></a>00240 }
<a name="l00241"></a>00241 <span class="keywordflow">break</span>;
<a name="l00242"></a>00242 }
<a name="l00243"></a>00243
<a name="l00244"></a>00244 <span class="keywordflow">return</span> ret;
<a name="l00245"></a>00245 }
<a name="l00246"></a>00246
<a name="l00247"></a><a class="code" href="classPtyProcess.html#a62a56a6754de03722ebf598f4b03ef5f">00247</a> <a class="codeRef" href="qcstring.html">QCString</a> <a class="code" href="classPtyProcess.html#a62a56a6754de03722ebf598f4b03ef5f" title="Read all available output from the program's standard out.">PtyProcess::readAll</a>(<span class="keywordtype">bool</span> block)
<a name="l00248"></a>00248 {
<a name="l00249"></a>00249 <a class="codeRef" href="qcstring.html">QCString</a> ret;
<a name="l00250"></a>00250
<a name="l00251"></a>00251 <span class="keywordflow">if</span> (!m_Inbuf.<a class="codeRef" href="qcstring.html#isEmpty">isEmpty</a>())
<a name="l00252"></a>00252 {
<a name="l00253"></a>00253 <span class="comment">// if there is still something in the buffer, we need not block.</span>
<a name="l00254"></a>00254 <span class="comment">// we should still try to read any further output, from the fd, though.</span>
<a name="l00255"></a>00255 block = <span class="keyword">false</span>;
<a name="l00256"></a>00256 ret = m_Inbuf;
<a name="l00257"></a>00257 m_Inbuf.<a class="codeRef" href="qcstring.html#resize">resize</a>(0);
<a name="l00258"></a>00258 }
<a name="l00259"></a>00259
<a name="l00260"></a>00260 <span class="keywordtype">int</span> flags = fcntl(m_Fd, F_GETFL);
<a name="l00261"></a>00261 <span class="keywordflow">if</span> (flags < 0)
<a name="l00262"></a>00262 {
<a name="l00263"></a>00263 kdError(900) << k_lineinfo << <span class="stringliteral">"fcntl(F_GETFL): "</span> << perror << <span class="stringliteral">"\n"</span>;
<a name="l00264"></a>00264 <span class="keywordflow">return</span> ret;
<a name="l00265"></a>00265 }
<a name="l00266"></a>00266 <span class="keywordtype">int</span> oflags = flags;
<a name="l00267"></a>00267 <span class="keywordflow">if</span> (block)
<a name="l00268"></a>00268 flags &= ~O_NONBLOCK;
<a name="l00269"></a>00269 <span class="keywordflow">else</span>
<a name="l00270"></a>00270 flags |= O_NONBLOCK;
<a name="l00271"></a>00271
<a name="l00272"></a>00272 <span class="keywordflow">if</span> ((flags != oflags) && (fcntl(m_Fd, F_SETFL, flags) < 0))
<a name="l00273"></a>00273 {
<a name="l00274"></a>00274 <span class="comment">// We get an error here when the child process has closed </span>
<a name="l00275"></a>00275 <span class="comment">// the file descriptor already.</span>
<a name="l00276"></a>00276 <span class="keywordflow">return</span> ret;
<a name="l00277"></a>00277 }
<a name="l00278"></a>00278
<a name="l00279"></a>00279 <span class="keywordtype">int</span> nbytes;
<a name="l00280"></a>00280 <span class="keywordtype">char</span> buf[256];
<a name="l00281"></a>00281 <span class="keywordflow">while</span> (1)
<a name="l00282"></a>00282 {
<a name="l00283"></a>00283 nbytes = read(m_Fd, buf, 255);
<a name="l00284"></a>00284 <span class="keywordflow">if</span> (nbytes == -1)
<a name="l00285"></a>00285 {
<a name="l00286"></a>00286 <span class="keywordflow">if</span> (errno == EINTR)
<a name="l00287"></a>00287 <span class="keywordflow">continue</span>;
<a name="l00288"></a>00288 <span class="keywordflow">else</span> <span class="keywordflow">break</span>;
<a name="l00289"></a>00289 }
<a name="l00290"></a>00290 <span class="keywordflow">if</span> (nbytes == 0)
<a name="l00291"></a>00291 <span class="keywordflow">break</span>; <span class="comment">// eof</span>
<a name="l00292"></a>00292
<a name="l00293"></a>00293 buf[nbytes] = <span class="charliteral">'\000'</span>;
<a name="l00294"></a>00294 ret += buf;
<a name="l00295"></a>00295 <span class="keywordflow">break</span>;
<a name="l00296"></a>00296 }
<a name="l00297"></a>00297
<a name="l00298"></a>00298 <span class="keywordflow">return</span> ret;
<a name="l00299"></a>00299 }
<a name="l00300"></a>00300
<a name="l00301"></a>00301
<a name="l00302"></a><a class="code" href="classPtyProcess.html#a2ad2d5259cef57e4b6907e26176999ec">00302</a> <span class="keywordtype">void</span> <a class="code" href="classPtyProcess.html#a2ad2d5259cef57e4b6907e26176999ec" title="Writes a line of text to the program's standard in.">PtyProcess::writeLine</a>(<span class="keyword">const</span> <a class="codeRef" href="qcstring.html">QCString</a> &line, <span class="keywordtype">bool</span> addnl)
<a name="l00303"></a>00303 {
<a name="l00304"></a>00304 <span class="keywordflow">if</span> (!line.<a class="codeRef" href="qcstring.html#isEmpty">isEmpty</a>())
<a name="l00305"></a>00305 write(m_Fd, line, line.<a class="codeRef" href="qcstring.html#length">length</a>());
<a name="l00306"></a>00306 <span class="keywordflow">if</span> (addnl)
<a name="l00307"></a>00307 write(m_Fd, <span class="stringliteral">"\n"</span>, 1);
<a name="l00308"></a>00308 }
<a name="l00309"></a>00309
<a name="l00310"></a>00310
<a name="l00311"></a><a class="code" href="classPtyProcess.html#a8befae498020dd0dd25faedb58eca808">00311</a> <span class="keywordtype">void</span> <a class="code" href="classPtyProcess.html#a8befae498020dd0dd25faedb58eca808" title="Puts back a line of input.">PtyProcess::unreadLine</a>(<span class="keyword">const</span> <a class="codeRef" href="qcstring.html">QCString</a> &line, <span class="keywordtype">bool</span> addnl)
<a name="l00312"></a>00312 {
<a name="l00313"></a>00313 <a class="codeRef" href="qcstring.html">QCString</a> tmp = line;
<a name="l00314"></a>00314 <span class="keywordflow">if</span> (addnl)
<a name="l00315"></a>00315 tmp += <span class="charliteral">'\n'</span>;
<a name="l00316"></a>00316 <span class="keywordflow">if</span> (!tmp.<a class="codeRef" href="qcstring.html#isEmpty">isEmpty</a>())
<a name="l00317"></a>00317 m_Inbuf.<a class="codeRef" href="qcstring.html#prepend">prepend</a>(tmp);
<a name="l00318"></a>00318 }
<a name="l00319"></a>00319
<a name="l00320"></a>00320 <span class="comment">/*</span>
<a name="l00321"></a>00321 <span class="comment"> * Fork and execute the command. This returns in the parent.</span>
<a name="l00322"></a>00322 <span class="comment"> */</span>
<a name="l00323"></a>00323
<a name="l00324"></a><a class="code" href="classPtyProcess.html#a109647b1399b9815dad3cb67e1bd86e1">00324</a> <span class="keywordtype">int</span> <a class="code" href="classPtyProcess.html#a109647b1399b9815dad3cb67e1bd86e1" title="Forks off and execute a command.">PtyProcess::exec</a>(<span class="keyword">const</span> <a class="codeRef" href="qcstring.html">QCString</a> &command, <span class="keyword">const</span> <a class="codeRef" href="qvaluelist.html">QCStringList</a> &args)
<a name="l00325"></a>00325 {
<a name="l00326"></a>00326 kdDebug(900) << k_lineinfo << <span class="stringliteral">"Running `"</span> << command << <span class="stringliteral">"'\n"</span>;
<a name="l00327"></a>00327
<a name="l00328"></a>00328 <span class="keywordflow">if</span> (init() < 0)
<a name="l00329"></a>00329 <span class="keywordflow">return</span> -1;
<a name="l00330"></a>00330
<a name="l00331"></a>00331 <span class="comment">// Open the pty slave before forking. See SetupTTY()</span>
<a name="l00332"></a>00332 <span class="keywordtype">int</span> slave = open(m_TTY, O_RDWR);
<a name="l00333"></a>00333 <span class="keywordflow">if</span> (slave < 0)
<a name="l00334"></a>00334 {
<a name="l00335"></a>00335 kdError(900) << k_lineinfo << <span class="stringliteral">"Could not open slave pty.\n"</span>;
<a name="l00336"></a>00336 <span class="keywordflow">return</span> -1;
<a name="l00337"></a>00337 }
<a name="l00338"></a>00338
<a name="l00339"></a>00339 <span class="keywordflow">if</span> ((m_Pid = fork()) == -1)
<a name="l00340"></a>00340 {
<a name="l00341"></a>00341 kdError(900) << k_lineinfo << <span class="stringliteral">"fork(): "</span> << perror << <span class="stringliteral">"\n"</span>;
<a name="l00342"></a>00342 <span class="keywordflow">return</span> -1;
<a name="l00343"></a>00343 }
<a name="l00344"></a>00344
<a name="l00345"></a>00345 <span class="comment">// Parent</span>
<a name="l00346"></a>00346 <span class="keywordflow">if</span> (m_Pid)
<a name="l00347"></a>00347 {
<a name="l00348"></a>00348 close(slave);
<a name="l00349"></a>00349 <span class="keywordflow">return</span> 0;
<a name="l00350"></a>00350 }
<a name="l00351"></a>00351
<a name="l00352"></a>00352 <span class="comment">// Child</span>
<a name="l00353"></a>00353 <span class="keywordflow">if</span> (SetupTTY(slave) < 0)
<a name="l00354"></a>00354 _exit(1);
<a name="l00355"></a>00355
<a name="l00356"></a>00356 <span class="keywordflow">for</span>(<a class="codeRef" href="qvaluelist.html#ConstIterator">QCStringList::ConstIterator</a> it = d->env.begin();
<a name="l00357"></a>00357 it != d->env.end(); it++)
<a name="l00358"></a>00358 {
<a name="l00359"></a>00359 putenv((*it).data());
<a name="l00360"></a>00360 }
<a name="l00361"></a>00361 unsetenv(<span class="stringliteral">"KDE_FULL_SESSION"</span>);
<a name="l00362"></a>00362
<a name="l00363"></a>00363 <span class="comment">// set temporarily LC_ALL to C, for su (to be able to parse "Password:")</span>
<a name="l00364"></a>00364 <span class="keyword">const</span> <span class="keywordtype">char</span>* old_lc_all = getenv( <span class="stringliteral">"LC_ALL"</span> );
<a name="l00365"></a>00365 <span class="keywordflow">if</span>( old_lc_all != NULL )
<a name="l00366"></a>00366 setenv( <span class="stringliteral">"KDESU_LC_ALL"</span>, old_lc_all, 1 );
<a name="l00367"></a>00367 <span class="keywordflow">else</span>
<a name="l00368"></a>00368 unsetenv( <span class="stringliteral">"KDESU_LC_ALL"</span> );
<a name="l00369"></a>00369 setenv(<span class="stringliteral">"LC_ALL"</span>, <span class="stringliteral">"C"</span>, 1);
<a name="l00370"></a>00370
<a name="l00371"></a>00371 <span class="comment">// From now on, terminal output goes through the tty.</span>
<a name="l00372"></a>00372
<a name="l00373"></a>00373 <a class="codeRef" href="qcstring.html">QCString</a> path;
<a name="l00374"></a>00374 <span class="keywordflow">if</span> (command.contains(<span class="charliteral">'/'</span>))
<a name="l00375"></a>00375 path = command;
<a name="l00376"></a>00376 <span class="keywordflow">else</span>
<a name="l00377"></a>00377 {
<a name="l00378"></a>00378 <a class="codeRef" href="qstring.html">QString</a> file = KStandardDirs::findExe(command);
<a name="l00379"></a>00379 <span class="keywordflow">if</span> (file.<a class="codeRef" href="qstring.html#isEmpty">isEmpty</a>())
<a name="l00380"></a>00380 {
<a name="l00381"></a>00381 kdError(900) << k_lineinfo << command << <span class="stringliteral">" not found\n"</span>;
<a name="l00382"></a>00382 _exit(1);
<a name="l00383"></a>00383 }
<a name="l00384"></a>00384 path = <a class="codeRef" href="qfile.html#encodeName">QFile::encodeName</a>(file);
<a name="l00385"></a>00385 }
<a name="l00386"></a>00386
<a name="l00387"></a>00387 <span class="keyword">const</span> <span class="keywordtype">char</span> **argp = (<span class="keyword">const</span> <span class="keywordtype">char</span> **)malloc((args.<a class="codeRef" href="qvaluelist.html#count">count</a>()+2)*<span class="keyword">sizeof</span>(<span class="keywordtype">char</span> *));
<a name="l00388"></a>00388 <span class="keywordtype">int</span> i = 0;
<a name="l00389"></a>00389 argp[i++] = path;
<a name="l00390"></a>00390 <span class="keywordflow">for</span> (<a class="codeRef" href="qvaluelist.html#ConstIterator">QCStringList::ConstIterator</a> it=args.<a class="codeRef" href="qvaluelist.html#begin">begin</a>(); it!=args.<a class="codeRef" href="qvaluelist.html#end">end</a>(); ++it)
<a name="l00391"></a>00391 argp[i++] = *it;
<a name="l00392"></a>00392
<a name="l00393"></a>00393 argp[i] = 0L;
<a name="l00394"></a>00394
<a name="l00395"></a>00395 execv(path, (<span class="keywordtype">char</span> * <span class="keyword">const</span> *)argp);
<a name="l00396"></a>00396 kdError(900) << k_lineinfo << <span class="stringliteral">"execv(\""</span> << path << <span class="stringliteral">"\"): "</span> << perror << <span class="stringliteral">"\n"</span>;
<a name="l00397"></a>00397 _exit(1);
<a name="l00398"></a>00398 <span class="keywordflow">return</span> -1; <span class="comment">// Shut up compiler. Never reached.</span>
<a name="l00399"></a>00399 }
<a name="l00400"></a>00400
<a name="l00401"></a>00401
<a name="l00402"></a>00402 <span class="comment">/*</span>
<a name="l00403"></a>00403 <span class="comment"> * Wait until the terminal is set into no echo mode. At least one su </span>
<a name="l00404"></a>00404 <span class="comment"> * (RH6 w/ Linux-PAM patches) sets noecho mode AFTER writing the Password: </span>
<a name="l00405"></a>00405 <span class="comment"> * prompt, using TCSAFLUSH. This flushes the terminal I/O queues, possibly </span>
<a name="l00406"></a>00406 <span class="comment"> * taking the password with it. So we wait until no echo mode is set </span>
<a name="l00407"></a>00407 <span class="comment"> * before writing the password.</span>
<a name="l00408"></a>00408 <span class="comment"> * Note that this is done on the slave fd. While Linux allows tcgetattr() on</span>
<a name="l00409"></a>00409 <span class="comment"> * the master side, Solaris doesn't.</span>
<a name="l00410"></a>00410 <span class="comment"> */</span>
<a name="l00411"></a>00411
<a name="l00412"></a><a class="code" href="classPtyProcess.html#abce600589977c5b7aaee94bf4c8cd112">00412</a> <span class="keywordtype">int</span> <a class="code" href="classPtyProcess.html#abce600589977c5b7aaee94bf4c8cd112" title="Waits until the pty has cleared the ECHO flag.">PtyProcess::WaitSlave</a>()
<a name="l00413"></a>00413 {
<a name="l00414"></a>00414 <span class="keywordtype">int</span> slave = open(m_TTY, O_RDWR);
<a name="l00415"></a>00415 <span class="keywordflow">if</span> (slave < 0)
<a name="l00416"></a>00416 {
<a name="l00417"></a>00417 kdError(900) << k_lineinfo << <span class="stringliteral">"Could not open slave tty.\n"</span>;
<a name="l00418"></a>00418 <span class="keywordflow">return</span> -1;
<a name="l00419"></a>00419 }
<a name="l00420"></a>00420
<a name="l00421"></a>00421 kdDebug(900) << k_lineinfo << <span class="stringliteral">"Child pid "</span> << m_Pid << endl;
<a name="l00422"></a>00422
<a name="l00423"></a>00423 <span class="keyword">struct </span>termios tio;
<a name="l00424"></a>00424 <span class="keywordflow">while</span> (1)
<a name="l00425"></a>00425 {
<a name="l00426"></a>00426 <span class="keywordflow">if</span> (!<a class="code" href="classPtyProcess.html#a6c8c5e6eb93c0c9378bf21d94f60d1aa" title="Basic check for the existence of pid.">checkPid</a>(m_Pid))
<a name="l00427"></a>00427 {
<a name="l00428"></a>00428 close(slave);
<a name="l00429"></a>00429 <span class="keywordflow">return</span> -1;
<a name="l00430"></a>00430 }
<a name="l00431"></a>00431 <span class="keywordflow">if</span> (tcgetattr(slave, &tio) < 0)
<a name="l00432"></a>00432 {
<a name="l00433"></a>00433 kdError(900) << k_lineinfo << <span class="stringliteral">"tcgetattr(): "</span> << perror << <span class="stringliteral">"\n"</span>;
<a name="l00434"></a>00434 close(slave);
<a name="l00435"></a>00435 <span class="keywordflow">return</span> -1;
<a name="l00436"></a>00436 }
<a name="l00437"></a>00437 <span class="keywordflow">if</span> (tio.c_lflag & ECHO)
<a name="l00438"></a>00438 {
<a name="l00439"></a>00439 kdDebug(900) << k_lineinfo << <span class="stringliteral">"Echo mode still on.\n"</span>;
<a name="l00440"></a>00440 <a class="code" href="classPtyProcess.html#a131b9711d9b7940e23a8453f56619bfa" title="Wait ms miliseconds (ie.">waitMS</a>(slave,100);
<a name="l00441"></a>00441 <span class="keywordflow">continue</span>;
<a name="l00442"></a>00442 }
<a name="l00443"></a>00443 <span class="keywordflow">break</span>;
<a name="l00444"></a>00444 }
<a name="l00445"></a>00445 close(slave);
<a name="l00446"></a>00446 <span class="keywordflow">return</span> 0;
<a name="l00447"></a>00447 }
<a name="l00448"></a>00448
<a name="l00449"></a>00449
<a name="l00450"></a><a class="code" href="classPtyProcess.html#aab496808dbc7aee1d2571faa27921607">00450</a> <span class="keywordtype">int</span> <a class="code" href="classPtyProcess.html#aab496808dbc7aee1d2571faa27921607" title="Enables/disables local echo on the pseudo tty.">PtyProcess::enableLocalEcho</a>(<span class="keywordtype">bool</span> enable)
<a name="l00451"></a>00451 {
<a name="l00452"></a>00452 <span class="keywordtype">int</span> slave = open(m_TTY, O_RDWR);
<a name="l00453"></a>00453 <span class="keywordflow">if</span> (slave < 0)
<a name="l00454"></a>00454 {
<a name="l00455"></a>00455 kdError(900) << k_lineinfo << <span class="stringliteral">"Could not open slave tty.\n"</span>;
<a name="l00456"></a>00456 <span class="keywordflow">return</span> -1;
<a name="l00457"></a>00457 }
<a name="l00458"></a>00458 <span class="keyword">struct </span>termios tio;
<a name="l00459"></a>00459 <span class="keywordflow">if</span> (tcgetattr(slave, &tio) < 0)
<a name="l00460"></a>00460 {
<a name="l00461"></a>00461 kdError(900) << k_lineinfo << <span class="stringliteral">"tcgetattr(): "</span> << perror << <span class="stringliteral">"\n"</span>;
<a name="l00462"></a>00462 close(slave); <span class="keywordflow">return</span> -1;
<a name="l00463"></a>00463 }
<a name="l00464"></a>00464 <span class="keywordflow">if</span> (enable)
<a name="l00465"></a>00465 tio.c_lflag |= ECHO;
<a name="l00466"></a>00466 <span class="keywordflow">else</span>
<a name="l00467"></a>00467 tio.c_lflag &= ~ECHO;
<a name="l00468"></a>00468 <span class="keywordflow">if</span> (tcsetattr(slave, TCSANOW, &tio) < 0)
<a name="l00469"></a>00469 {
<a name="l00470"></a>00470 kdError(900) << k_lineinfo << <span class="stringliteral">"tcsetattr(): "</span> << perror << <span class="stringliteral">"\n"</span>;
<a name="l00471"></a>00471 close(slave); <span class="keywordflow">return</span> -1;
<a name="l00472"></a>00472 }
<a name="l00473"></a>00473 close(slave);
<a name="l00474"></a>00474 <span class="keywordflow">return</span> 0;
<a name="l00475"></a>00475 }
<a name="l00476"></a>00476
<a name="l00477"></a>00477
<a name="l00478"></a>00478 <span class="comment">/*</span>
<a name="l00479"></a>00479 <span class="comment"> * Copy output to stdout until the child process exists, or a line of output</span>
<a name="l00480"></a>00480 <span class="comment"> * matches `m_Exit'.</span>
<a name="l00481"></a>00481 <span class="comment"> * We have to use waitpid() to test for exit. Merely waiting for EOF on the</span>
<a name="l00482"></a>00482 <span class="comment"> * pty does not work, because the target process may have children still</span>
<a name="l00483"></a>00483 <span class="comment"> * attached to the terminal.</span>
<a name="l00484"></a>00484 <span class="comment"> */</span>
<a name="l00485"></a>00485
<a name="l00486"></a><a class="code" href="classPtyProcess.html#a6355fbb06209004a5925bfcd5190fbaa">00486</a> <span class="keywordtype">int</span> <a class="code" href="classPtyProcess.html#a6355fbb06209004a5925bfcd5190fbaa" title="Waits for the child to exit.">PtyProcess::waitForChild</a>()
<a name="l00487"></a>00487 {
<a name="l00488"></a>00488 <span class="keywordtype">int</span> retval = 1;
<a name="l00489"></a>00489
<a name="l00490"></a>00490 fd_set fds;
<a name="l00491"></a>00491 FD_ZERO(&fds);
<a name="l00492"></a>00492
<a name="l00493"></a>00493 <span class="keywordflow">while</span> (1)
<a name="l00494"></a>00494 {
<a name="l00495"></a>00495 FD_SET(m_Fd, &fds);
<a name="l00496"></a>00496 <span class="keywordtype">int</span> ret = select(m_Fd+1, &fds, 0L, 0L, 0L);
<a name="l00497"></a>00497 <span class="keywordflow">if</span> (ret == -1)
<a name="l00498"></a>00498 {
<a name="l00499"></a>00499 <span class="keywordflow">if</span> (errno != EINTR)
<a name="l00500"></a>00500 {
<a name="l00501"></a>00501 kdError(900) << k_lineinfo << <span class="stringliteral">"select(): "</span> << perror << <span class="stringliteral">"\n"</span>;
<a name="l00502"></a>00502 <span class="keywordflow">return</span> -1;
<a name="l00503"></a>00503 }
<a name="l00504"></a>00504 ret = 0;
<a name="l00505"></a>00505 }
<a name="l00506"></a>00506
<a name="l00507"></a>00507 <span class="keywordflow">if</span> (ret)
<a name="l00508"></a>00508 {
<a name="l00509"></a>00509 <a class="codeRef" href="qcstring.html">QCString</a> output = <a class="code" href="classPtyProcess.html#a62a56a6754de03722ebf598f4b03ef5f" title="Read all available output from the program's standard out.">readAll</a>(<span class="keyword">false</span>);
<a name="l00510"></a>00510 <span class="keywordtype">bool</span> lineStart = <span class="keyword">true</span>;
<a name="l00511"></a>00511 <span class="keywordflow">while</span> (!output.<a class="codeRef" href="qcstring.html#isNull">isNull</a>())
<a name="l00512"></a>00512 {
<a name="l00513"></a>00513 <span class="keywordflow">if</span> (!m_Exit.<a class="codeRef" href="qcstring.html#isEmpty">isEmpty</a>())
<a name="l00514"></a>00514 {
<a name="l00515"></a>00515 <span class="comment">// match exit string only at line starts</span>
<a name="l00516"></a>00516 <span class="keywordtype">int</span> pos = output.<a class="codeRef" href="qcstring.html#find">find</a>(m_Exit);
<a name="l00517"></a>00517 <span class="keywordflow">if</span> ((pos >= 0) && ((pos == 0 && lineStart) || (output.at (pos - 1) == <span class="charliteral">'\n'</span>)))
<a name="l00518"></a>00518 {
<a name="l00519"></a>00519 kill(m_Pid, SIGTERM);
<a name="l00520"></a>00520 }
<a name="l00521"></a>00521 }
<a name="l00522"></a>00522 <span class="keywordflow">if</span> (m_bTerminal)
<a name="l00523"></a>00523 {
<a name="l00524"></a>00524 fputs(output, stdout);
<a name="l00525"></a>00525 fflush(stdout);
<a name="l00526"></a>00526 }
<a name="l00527"></a>00527 lineStart = output.at( output.<a class="codeRef" href="qcstring.html#length">length</a>() - 1 ) == <span class="charliteral">'\n'</span>;
<a name="l00528"></a>00528 output = <a class="code" href="classPtyProcess.html#a62a56a6754de03722ebf598f4b03ef5f" title="Read all available output from the program's standard out.">readAll</a>(<span class="keyword">false</span>);
<a name="l00529"></a>00529 }
<a name="l00530"></a>00530 }
<a name="l00531"></a>00531
<a name="l00532"></a>00532 ret = checkPidExited(m_Pid);
<a name="l00533"></a>00533 <span class="keywordflow">if</span> (ret == Error)
<a name="l00534"></a>00534 {
<a name="l00535"></a>00535 <span class="keywordflow">if</span> (errno == ECHILD) retval = 0;
<a name="l00536"></a>00536 <span class="keywordflow">else</span> retval = 1;
<a name="l00537"></a>00537 <span class="keywordflow">break</span>;
<a name="l00538"></a>00538 }
<a name="l00539"></a>00539 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (ret == Killed)
<a name="l00540"></a>00540 {
<a name="l00541"></a>00541 retval = 0;
<a name="l00542"></a>00542 <span class="keywordflow">break</span>;
<a name="l00543"></a>00543 }
<a name="l00544"></a>00544 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (ret == NotExited)
<a name="l00545"></a>00545 {
<a name="l00546"></a>00546 <span class="comment">// keep checking</span>
<a name="l00547"></a>00547 }
<a name="l00548"></a>00548 <span class="keywordflow">else</span>
<a name="l00549"></a>00549 {
<a name="l00550"></a>00550 retval = ret;
<a name="l00551"></a>00551 <span class="keywordflow">break</span>;
<a name="l00552"></a>00552 }
<a name="l00553"></a>00553 }
<a name="l00554"></a>00554 <span class="keywordflow">return</span> retval;
<a name="l00555"></a>00555 }
<a name="l00556"></a>00556
<a name="l00557"></a>00557 <span class="comment">/*</span>
<a name="l00558"></a>00558 <span class="comment"> * SetupTTY: Creates a new session. The filedescriptor "fd" should be</span>
<a name="l00559"></a>00559 <span class="comment"> * connected to the tty. It is closed after the tty is reopened to make it</span>
<a name="l00560"></a>00560 <span class="comment"> * our controlling terminal. This way the tty is always opened at least once</span>
<a name="l00561"></a>00561 <span class="comment"> * so we'll never get EIO when reading from it.</span>
<a name="l00562"></a>00562 <span class="comment"> */</span>
<a name="l00563"></a>00563
<a name="l00564"></a>00564 <span class="keywordtype">int</span> PtyProcess::SetupTTY(<span class="keywordtype">int</span> fd)
<a name="l00565"></a>00565 {
<a name="l00566"></a>00566 <span class="comment">// Reset signal handlers</span>
<a name="l00567"></a>00567 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> sig = 1; sig < NSIG; sig++)
<a name="l00568"></a>00568 signal(sig, SIG_DFL);
<a name="l00569"></a>00569 signal(SIGHUP, SIG_IGN);
<a name="l00570"></a>00570
<a name="l00571"></a>00571 <span class="comment">// Close all file handles</span>
<a name="l00572"></a>00572 <span class="keyword">struct </span>rlimit rlp;
<a name="l00573"></a>00573 getrlimit(RLIMIT_NOFILE, &rlp);
<a name="l00574"></a>00574 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < (int)rlp.rlim_cur; i++)
<a name="l00575"></a>00575 <span class="keywordflow">if</span> (i != fd) close(i);
<a name="l00576"></a>00576
<a name="l00577"></a>00577 <span class="comment">// Create a new session.</span>
<a name="l00578"></a>00578 setsid();
<a name="l00579"></a>00579
<a name="l00580"></a>00580 <span class="comment">// Open slave. This will make it our controlling terminal</span>
<a name="l00581"></a>00581 <span class="keywordtype">int</span> slave = open(m_TTY, O_RDWR);
<a name="l00582"></a>00582 <span class="keywordflow">if</span> (slave < 0)
<a name="l00583"></a>00583 {
<a name="l00584"></a>00584 kdError(900) << k_lineinfo << <span class="stringliteral">"Could not open slave side: "</span> << perror << <span class="stringliteral">"\n"</span>;
<a name="l00585"></a>00585 <span class="keywordflow">return</span> -1;
<a name="l00586"></a>00586 }
<a name="l00587"></a>00587 close(fd);
<a name="l00588"></a>00588
<a name="l00589"></a>00589 <span class="preprocessor">#if defined(__SVR4) && defined(sun)</span>
<a name="l00590"></a>00590 <span class="preprocessor"></span>
<a name="l00591"></a>00591 <span class="comment">// Solaris STREAMS environment.</span>
<a name="l00592"></a>00592 <span class="comment">// Push these modules to make the stream look like a terminal.</span>
<a name="l00593"></a>00593 ioctl(slave, I_PUSH, <span class="stringliteral">"ptem"</span>);
<a name="l00594"></a>00594 ioctl(slave, I_PUSH, <span class="stringliteral">"ldterm"</span>);
<a name="l00595"></a>00595
<a name="l00596"></a>00596 <span class="preprocessor">#endif</span>
<a name="l00597"></a>00597 <span class="preprocessor"></span>
<a name="l00598"></a>00598 <span class="preprocessor">#ifdef TIOCSCTTY</span>
<a name="l00599"></a>00599 <span class="preprocessor"></span> ioctl(slave, TIOCSCTTY, NULL);
<a name="l00600"></a>00600 <span class="preprocessor">#endif</span>
<a name="l00601"></a>00601 <span class="preprocessor"></span>
<a name="l00602"></a>00602 <span class="comment">// Connect stdin, stdout and stderr</span>
<a name="l00603"></a>00603 dup2(slave, 0); dup2(slave, 1); dup2(slave, 2);
<a name="l00604"></a>00604 <span class="keywordflow">if</span> (slave > 2)
<a name="l00605"></a>00605 close(slave);
<a name="l00606"></a>00606
<a name="l00607"></a>00607 <span class="comment">// Disable OPOST processing. Otherwise, '\n' are (on Linux at least)</span>
<a name="l00608"></a>00608 <span class="comment">// translated to '\r\n'.</span>
<a name="l00609"></a>00609 <span class="keyword">struct </span>termios tio;
<a name="l00610"></a>00610 <span class="keywordflow">if</span> (tcgetattr(0, &tio) < 0)
<a name="l00611"></a>00611 {
<a name="l00612"></a>00612 kdError(900) << k_lineinfo << <span class="stringliteral">"tcgetattr(): "</span> << perror << <span class="stringliteral">"\n"</span>;
<a name="l00613"></a>00613 <span class="keywordflow">return</span> -1;
<a name="l00614"></a>00614 }
<a name="l00615"></a>00615 tio.c_oflag &= ~OPOST;
<a name="l00616"></a>00616 <span class="keywordflow">if</span> (tcsetattr(0, TCSANOW, &tio) < 0)
<a name="l00617"></a>00617 {
<a name="l00618"></a>00618 kdError(900) << k_lineinfo << <span class="stringliteral">"tcsetattr(): "</span> << perror << <span class="stringliteral">"\n"</span>;
<a name="l00619"></a>00619 <span class="keywordflow">return</span> -1;
<a name="l00620"></a>00620 }
<a name="l00621"></a>00621
<a name="l00622"></a>00622 <span class="keywordflow">return</span> 0;
<a name="l00623"></a>00623 }
<a name="l00624"></a>00624
<a name="l00625"></a>00625 <span class="keywordtype">void</span> PtyProcess::virtual_hook( <span class="keywordtype">int</span>, <span class="keywordtype">void</span>* )
<a name="l00626"></a>00626 { <span class="comment">/*BASE::virtual_hook( id, data );*/</span> }
</pre></div></div>
</div>
</div></div>
</td>
</tr>
<tr>
<td valign="top" id="leftmenu" width="25%">
<a name="navigation"></a>
<div class="menu_box"><h2>kdesu</h2>
<div class="nav_list">
<ul><li><a href="index.html">Main Page</a></li><li><a href="hierarchy.html">Class Hierarchy</a></li><li><a href="classes.html">Alphabetical List</a></li><li><a href="annotated.html">Class List</a></li><li><a href="files.html">File List</a></li><li><a href="functions.html">Class Members</a></li><li><a href="pages.html">Related Pages</a></li></ul>
<!--
<h2>Class Picker</h2>
<div style="text-align: center;">
<form name="guideform">
<select name="guidelinks" style="width:100%;" onChange="window.location=document.guideform.guidelinks.options[document.guideform.guidelinks.selectedIndex].value">
<option value="annotated.html">-- Choose --</option>
<option value="classKCookie.html">kcookie</option>, <option value="classKDEsuClient.html">kdesuclient</option>, <option value="classPTY.html">pty</option>, <option value="classPtyProcess.html">ptyprocess</option>, <option value="classSshProcess.html">sshprocess</option>, <option value="classStubProcess.html">stubprocess</option>, <option value="classSuProcess.html">suprocess</option>,
</select>
</form>
</div>
-->
</div></div>
<div class="menu_box"><h2>API Dox</h2>
<div class="nav_list">
<ul>
<li><a href="../../arts/html/index.html">arts</a></li><li><a href="../../dcop/html/index.html">dcop</a></li><li><a href="../../dnssd/html/index.html">dnssd</a></li><li><a href="../../interfaces/html/index.html">interfaces</a></li><li> <a href="../../interfaces/kimproxy/interface/html/index.html">interface</a></li><li> <a href="../../interfaces/kimproxy/library/html/index.html">library</a></li><li> <a href="../../interfaces/kspeech/html/index.html">kspeech</a></li><li> <a href="../../interfaces/ktexteditor/html/index.html">ktexteditor</a></li><li><a href="../../kabc/html/index.html">kabc</a></li><li><a href="../../kate/html/index.html">kate</a></li><li><a href="../../kcmshell/html/index.html">kcmshell</a></li><li><a href="../../kdecore/html/index.html">kdecore</a></li><li><a href="../../kded/html/index.html">kded</a></li><li><a href="../../kdefx/html/index.html">kdefx</a></li><li><a href="../../kdeprint/html/index.html">kdeprint</a></li><li><a href="../../kdesu/html/index.html">kdesu</a></li><li><a href="../../kdeui/html/index.html">kdeui</a></li><li><a href="../../kdoctools/html/index.html">kdoctools</a></li><li><a href="../../khtml/html/index.html">khtml</a></li><li><a href="../../kimgio/html/index.html">kimgio</a></li><li><a href="../../kinit/html/index.html">kinit</a></li><li><a href="../../kio/html/index.html">kio</a></li><li> <a href="../../kio/bookmarks/html/index.html">bookmarks</a></li><li> <a href="../../kio/httpfilter/html/index.html">httpfilter</a></li><li> <a href="../../kio/kfile/html/index.html">kfile</a></li><li> <a href="../../kio/kio/html/index.html">kio</a></li><li> <a href="../../kio/kioexec/html/index.html">kioexec</a></li><li> <a href="../../kio/kpasswdserver/html/index.html">kpasswdserver</a></li><li> <a href="../../kio/kssl/html/index.html">kssl</a></li><li><a href="../../kioslave/html/index.html">kioslave</a></li><li> <a href="../../kioslave/http/html/index.html">http</a></li><li><a href="../../kjs/html/index.html">kjs</a></li><li><a href="../../kmdi/html/index.html">kmdi</a></li><li> <a href="../../kmdi/kmdi/html/index.html">kmdi</a></li><li><a href="../../knewstuff/html/index.html">knewstuff</a></li><li><a href="../../kparts/html/index.html">kparts</a></li><li><a href="../../kresources/html/index.html">kresources</a></li><li><a href="../../kspell2/html/index.html">kspell2</a></li><li><a href="../../kunittest/html/index.html">kunittest</a></li><li><a href="../../kutils/html/index.html">kutils</a></li><li><a href="../../kwallet/html/index.html">kwallet</a></li><li><a href="../../libkmid/html/index.html">libkmid</a></li><li><a href="../../libkscreensaver/html/index.html">libkscreensaver</a></li>
</ul></div></div>
</td>
</tr>
</table>
<span class="doNotDisplay">
<a href="http://www.kde.org/" accesskey="8">KDE Home</a> |
<a href="http://accessibility.kde.org/" accesskey="9">KDE Accessibility Home</a> |
<a href="http://www.kde.org/media/accesskeys.php" accesskey="0">Description of Access Keys</a>
</span>
<div style="height: 8px"></div>
<div id="footer">
<div id="footer_left">
Maintained by <a href="mailto:groot@kde.org">Adriaan de Groot</a>
and
<a href="mailto:winter@kde.org">Allen Winter</a>.
<br/>
KDE and K Desktop Environment are trademarks of <a href="http://www.kde.org/areas/kde-ev/" title="Homepage of the KDE non-profit Organization">KDE e.V.</a> |
<a href="http://www.kde.org/contact/impressum.php">Legal</a>
</div>
<div id="footer_right"><img src="/media/images/footer_right.png" style="margin: 0px" alt="" /></div>
</div>
<!--
WARNING: DO NOT SEND MAIL TO THE FOLLOWING EMAIL ADDRESS! YOU WILL
BE BLOCKED INSTANTLY AND PERMANENTLY!
<a href="mailto:aaaatrap-425acc3b5374943f@kde.org">Block me</a>
WARNING END
-->
</body>
</html>
