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<div class="title">kdesu_pty.cpp</div> </div>
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<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"> * $Id$</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"> * pty.cpp: Access to PTY's on different systems a la UNIX98.</span>
<a name="l00016"></a>00016 <span class="comment"> */</span>
<a name="l00017"></a>00017
<a name="l00018"></a>00018
<a name="l00019"></a>00019 <span class="preprocessor">#ifndef _GNU_SOURCE</span>
<a name="l00020"></a>00020 <span class="preprocessor"></span><span class="preprocessor">#define _GNU_SOURCE </span><span class="comment">/* Needed for getpt, ptsname in glibc 2.1.x systems */</span>
<a name="l00021"></a>00021 <span class="preprocessor">#endif</span>
<a name="l00022"></a>00022 <span class="preprocessor"></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <config.h></span>
<a name="l00024"></a>00024
<a name="l00025"></a>00025 <span class="preprocessor">#include <stdio.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <fcntl.h></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <unistd.h></span>
<a name="l00028"></a>00028 <span class="preprocessor">#include <string.h></span>
<a name="l00029"></a>00029 <span class="preprocessor">#include <stdlib.h></span>
<a name="l00030"></a>00030 <span class="preprocessor">#include <errno.h></span>
<a name="l00031"></a>00031
<a name="l00032"></a>00032 <span class="preprocessor">#include <sys/types.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/wait.h></span>
<a name="l00035"></a>00035 <span class="preprocessor">#include <sys/ioctl.h></span>
<a name="l00036"></a>00036 <span class="preprocessor">#if defined(__osf__) || defined(__CYGWIN__)</span>
<a name="l00037"></a>00037 <span class="preprocessor"></span><span class="preprocessor">#include <pty.h></span>
<a name="l00038"></a>00038 <span class="preprocessor">#endif</span>
<a name="l00039"></a>00039 <span class="preprocessor"></span>
<a name="l00040"></a>00040 <span class="preprocessor">#include <qglobal.h></span>
<a name="l00041"></a>00041 <span class="preprocessor">#include <qcstring.h></span>
<a name="l00042"></a>00042
<a name="l00043"></a>00043 <span class="preprocessor">#include <kdebug.h></span>
<a name="l00044"></a>00044 <span class="preprocessor">#include <kstandarddirs.h></span>
<a name="l00045"></a>00045 <span class="preprocessor">#include "kdesu_pty.h"</span>
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <span class="comment">// stdlib.h is meant to declare the prototypes but doesn't :(</span>
<a name="l00048"></a>00048 <span class="preprocessor">#ifndef __THROW</span>
<a name="l00049"></a>00049 <span class="preprocessor"></span><span class="preprocessor">#define __THROW</span>
<a name="l00050"></a>00050 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00051"></a>00051 <span class="preprocessor"></span>
<a name="l00052"></a>00052 <span class="preprocessor">#ifdef HAVE_GRANTPT</span>
<a name="l00053"></a>00053 <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> <span class="keywordtype">int</span> grantpt(<span class="keywordtype">int</span> fd) __THROW;
<a name="l00054"></a>00054 <span class="preprocessor">#endif</span>
<a name="l00055"></a>00055 <span class="preprocessor"></span>
<a name="l00056"></a>00056 <span class="preprocessor">#ifdef HAVE_PTSNAME</span>
<a name="l00057"></a>00057 <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> <span class="keywordtype">char</span> * ptsname(<span class="keywordtype">int</span> fd) __THROW;
<a name="l00058"></a>00058 <span class="preprocessor">#endif</span>
<a name="l00059"></a>00059 <span class="preprocessor"></span>
<a name="l00060"></a>00060 <span class="preprocessor">#ifdef HAVE_UNLOCKPT</span>
<a name="l00061"></a>00061 <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> <span class="keywordtype">int</span> unlockpt(<span class="keywordtype">int</span> fd) __THROW;
<a name="l00062"></a>00062 <span class="preprocessor">#endif</span>
<a name="l00063"></a>00063 <span class="preprocessor"></span>
<a name="l00064"></a>00064 <span class="preprocessor">#ifdef HAVE__GETPTY</span>
<a name="l00065"></a>00065 <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> <span class="keywordtype">char</span> *_getpty(<span class="keywordtype">int</span> *, <span class="keywordtype">int</span>, mode_t, <span class="keywordtype">int</span>);
<a name="l00066"></a>00066 <span class="preprocessor">#endif</span>
<a name="l00067"></a>00067 <span class="preprocessor"></span>
<a name="l00068"></a>00068 <span class="preprocessor">#ifdef HAVE_PTY_H</span>
<a name="l00069"></a>00069 <span class="preprocessor"></span><span class="preprocessor"> #include <pty.h></span>
<a name="l00070"></a>00070 <span class="preprocessor">#endif</span>
<a name="l00071"></a>00071 <span class="preprocessor"></span>
<a name="l00072"></a>00072 <span class="preprocessor">#include <termios.h></span>
<a name="l00073"></a>00073
<a name="l00074"></a>00074 <span class="preprocessor">#ifdef HAVE_LIBUTIL_H</span>
<a name="l00075"></a>00075 <span class="preprocessor"></span><span class="preprocessor"> #include <libutil.h></span>
<a name="l00076"></a>00076 <span class="preprocessor">#elif defined(HAVE_UTIL_H)</span>
<a name="l00077"></a>00077 <span class="preprocessor"></span><span class="preprocessor"> #include <util.h></span>
<a name="l00078"></a>00078 <span class="preprocessor">#endif</span>
<a name="l00079"></a>00079 <span class="preprocessor"></span>
<a name="l00080"></a><a class="code" href="classPTY.html#a4f239f71081712661e74e7db66e6c4ae">00080</a> <a class="code" href="classPTY.html#a4f239f71081712661e74e7db66e6c4ae" title="Construct a PTY object.">PTY::PTY</a>()
<a name="l00081"></a>00081 {
<a name="l00082"></a>00082 ptyfd = -1;
<a name="l00083"></a>00083 }
<a name="l00084"></a>00084
<a name="l00085"></a><a class="code" href="classPTY.html#ae7f216f9b99e433692ad0cebb6f6d3c2">00085</a> <a class="code" href="classPTY.html#ae7f216f9b99e433692ad0cebb6f6d3c2" title="Destructs the object.">PTY::~PTY</a>()
<a name="l00086"></a>00086 {
<a name="l00087"></a>00087 <span class="keywordflow">if</span> (ptyfd >= 0)
<a name="l00088"></a>00088 close(ptyfd);
<a name="l00089"></a>00089 }
<a name="l00090"></a>00090
<a name="l00091"></a>00091
<a name="l00092"></a>00092 <span class="comment">// Opens a pty master and returns its filedescriptor.</span>
<a name="l00093"></a>00093
<a name="l00094"></a><a class="code" href="classPTY.html#af38d9791c999dd7a86dfd2444c1eaf1c">00094</a> <span class="keywordtype">int</span> <a class="code" href="classPTY.html#af38d9791c999dd7a86dfd2444c1eaf1c" title="Allocate a pty.">PTY::getpt</a>()
<a name="l00095"></a>00095 {
<a name="l00096"></a>00096
<a name="l00097"></a>00097 <span class="preprocessor">#if defined(HAVE_GETPT) && defined(HAVE_PTSNAME)</span>
<a name="l00098"></a>00098 <span class="preprocessor"></span>
<a name="l00099"></a>00099 <span class="comment">// 1: UNIX98: preferred way</span>
<a name="l00100"></a>00100 ptyfd =<a class="code" href="classPTY.html#af38d9791c999dd7a86dfd2444c1eaf1c" title="Allocate a pty."> ::getpt</a>();
<a name="l00101"></a>00101 ttyname =<a class="code" href="classPTY.html#a076241ed7bb6c66a4a5d642ff08b3a5a" title="Get the slave name."> ::ptsname</a>(ptyfd);
<a name="l00102"></a>00102 <span class="keywordflow">return</span> ptyfd;
<a name="l00103"></a>00103
<a name="l00104"></a>00104 <span class="preprocessor">#elif defined(HAVE_OPENPTY)</span>
<a name="l00105"></a>00105 <span class="preprocessor"></span> <span class="comment">// 2: BSD interface</span>
<a name="l00106"></a>00106 <span class="comment">// More preferred than the linux hacks</span>
<a name="l00107"></a>00107 <span class="keywordtype">char</span> name[30];
<a name="l00108"></a>00108 <span class="keywordtype">int</span> master_fd, slave_fd;
<a name="l00109"></a>00109 <span class="keywordflow">if</span> (openpty(&master_fd, &slave_fd, name, 0L, 0L) != -1) {
<a name="l00110"></a>00110 ttyname = name;
<a name="l00111"></a>00111 name[5]=<span class="charliteral">'p'</span>;
<a name="l00112"></a>00112 ptyname = name;
<a name="l00113"></a>00113 close(slave_fd); <span class="comment">// We don't need this yet // Yes, we do.</span>
<a name="l00114"></a>00114 ptyfd = master_fd;
<a name="l00115"></a>00115 <span class="keywordflow">return</span> ptyfd;
<a name="l00116"></a>00116 }
<a name="l00117"></a>00117 ptyfd = -1;
<a name="l00118"></a>00118 kdDebug(900) << k_lineinfo << <span class="stringliteral">"Opening pty failed.\n"</span>;
<a name="l00119"></a>00119 <span class="keywordflow">return</span> -1;
<a name="l00120"></a>00120
<a name="l00121"></a>00121 <span class="preprocessor">#elif defined(HAVE__GETPTY)</span>
<a name="l00122"></a>00122 <span class="preprocessor"></span> <span class="comment">// 3: Irix interface</span>
<a name="l00123"></a>00123 <span class="keywordtype">int</span> master_fd;
<a name="l00124"></a>00124 ttyname = _getpty(&master_fd,O_RDWR,0600,0);
<a name="l00125"></a>00125 <span class="keywordflow">if</span> (ttyname)
<a name="l00126"></a>00126 ptyfd = master_fd;
<a name="l00127"></a>00127 <span class="keywordflow">else</span>{
<a name="l00128"></a>00128 ptyfd = -1;
<a name="l00129"></a>00129 kdDebug(900) << k_lineinfo << <span class="stringliteral">"Opening pty failed.error"</span> << errno << <span class="charliteral">'\n'</span>;
<a name="l00130"></a>00130 }
<a name="l00131"></a>00131 <span class="keywordflow">return</span> ptyfd;
<a name="l00132"></a>00132
<a name="l00133"></a>00133 <span class="preprocessor">#else</span>
<a name="l00134"></a>00134 <span class="preprocessor"></span>
<a name="l00135"></a>00135 <span class="comment">// 4: Open terminal device directly</span>
<a name="l00136"></a>00136 <span class="comment">// 4.1: Try /dev/ptmx first. (Linux w/ Unix98 PTYs, Solaris)</span>
<a name="l00137"></a>00137
<a name="l00138"></a>00138 ptyfd = open(<span class="stringliteral">"/dev/ptmx"</span>, O_RDWR);
<a name="l00139"></a>00139 <span class="keywordflow">if</span> (ptyfd >= 0) {
<a name="l00140"></a>00140 ptyname = <span class="stringliteral">"/dev/ptmx"</span>;
<a name="l00141"></a>00141 <span class="preprocessor">#ifdef HAVE_PTSNAME</span>
<a name="l00142"></a>00142 <span class="preprocessor"></span> ttyname =<a class="code" href="classPTY.html#a076241ed7bb6c66a4a5d642ff08b3a5a" title="Get the slave name."> ::ptsname</a>(ptyfd);
<a name="l00143"></a>00143 <span class="keywordflow">return</span> ptyfd;
<a name="l00144"></a>00144 <span class="preprocessor">#elif defined (TIOCGPTN)</span>
<a name="l00145"></a>00145 <span class="preprocessor"></span> <span class="keywordtype">int</span> ptyno;
<a name="l00146"></a>00146 <span class="keywordflow">if</span> (ioctl(ptyfd, TIOCGPTN, &ptyno) == 0) {
<a name="l00147"></a>00147 ttyname.<a class="codeRef" href="qcstring.html#sprintf">sprintf</a>(<span class="stringliteral">"/dev/pts/%d"</span>, ptyno);
<a name="l00148"></a>00148 <span class="keywordflow">return</span> ptyfd;
<a name="l00149"></a>00149 }
<a name="l00150"></a>00150 <span class="preprocessor">#endif</span>
<a name="l00151"></a>00151 <span class="preprocessor"></span> close(ptyfd);
<a name="l00152"></a>00152 }
<a name="l00153"></a>00153
<a name="l00154"></a>00154 <span class="comment">// 4.2: Try /dev/pty[p-e][0-f] (Linux w/o UNIX98 PTY's)</span>
<a name="l00155"></a>00155
<a name="l00156"></a>00156 <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">char</span> *c1 = <span class="stringliteral">"pqrstuvwxyzabcde"</span>; *c1 != <span class="charliteral">'\0'</span>; c1++)
<a name="l00157"></a>00157 {
<a name="l00158"></a>00158 <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">char</span> *c2 = <span class="stringliteral">"0123456789abcdef"</span>; *c2 != <span class="charliteral">'\0'</span>; c2++)
<a name="l00159"></a>00159 {
<a name="l00160"></a>00160 ptyname.<a class="codeRef" href="qcstring.html#sprintf">sprintf</a>(<span class="stringliteral">"/dev/pty%c%c"</span>, *c1, *c2);
<a name="l00161"></a>00161 ttyname.sprintf(<span class="stringliteral">"/dev/tty%c%c"</span>, *c1, *c2);
<a name="l00162"></a>00162 <span class="keywordflow">if</span> (access(ptyname, F_OK) < 0)
<a name="l00163"></a>00163 <span class="keywordflow">goto</span> linux_out;
<a name="l00164"></a>00164 ptyfd = open(ptyname, O_RDWR);
<a name="l00165"></a>00165 <span class="keywordflow">if</span> (ptyfd >= 0)
<a name="l00166"></a>00166 <span class="keywordflow">return</span> ptyfd;
<a name="l00167"></a>00167 }
<a name="l00168"></a>00168 }
<a name="l00169"></a>00169 linux_out:
<a name="l00170"></a>00170
<a name="l00171"></a>00171 <span class="comment">// 4.3: Try /dev/pty%d (SCO, Unixware)</span>
<a name="l00172"></a>00172
<a name="l00173"></a>00173 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<256; i++)
<a name="l00174"></a>00174 {
<a name="l00175"></a>00175 ptyname.<a class="codeRef" href="qcstring.html#sprintf">sprintf</a>(<span class="stringliteral">"/dev/ptyp%d"</span>, i);
<a name="l00176"></a>00176 ttyname.sprintf(<span class="stringliteral">"/dev/ttyp%d"</span>, i);
<a name="l00177"></a>00177 <span class="keywordflow">if</span> (access(ptyname, F_OK) < 0)
<a name="l00178"></a>00178 <span class="keywordflow">break</span>;
<a name="l00179"></a>00179 ptyfd = open(ptyname, O_RDWR);
<a name="l00180"></a>00180 <span class="keywordflow">if</span> (ptyfd >= 0)
<a name="l00181"></a>00181 <span class="keywordflow">return</span> ptyfd;
<a name="l00182"></a>00182 }
<a name="l00183"></a>00183
<a name="l00184"></a>00184
<a name="l00185"></a>00185 <span class="comment">// Other systems ??</span>
<a name="l00186"></a>00186 ptyfd = -1;
<a name="l00187"></a>00187 kdDebug(900) << k_lineinfo << <span class="stringliteral">"Unknown system or all methods failed.\n"</span>;
<a name="l00188"></a>00188 <span class="keywordflow">return</span> -1;
<a name="l00189"></a>00189
<a name="l00190"></a>00190 <span class="preprocessor">#endif // HAVE_GETPT && HAVE_PTSNAME</span>
<a name="l00191"></a>00191 <span class="preprocessor"></span>
<a name="l00192"></a>00192 }
<a name="l00193"></a>00193
<a name="l00194"></a>00194
<a name="l00195"></a><a class="code" href="classPTY.html#a6adc9b83c6f996dac1d1741774ad6d71">00195</a> <span class="keywordtype">int</span> <a class="code" href="classPTY.html#a6adc9b83c6f996dac1d1741774ad6d71" title="Grant access to the slave side.">PTY::grantpt</a>()
<a name="l00196"></a>00196 {
<a name="l00197"></a>00197 <span class="keywordflow">if</span> (ptyfd < 0)
<a name="l00198"></a>00198 <span class="keywordflow">return</span> -1;
<a name="l00199"></a>00199
<a name="l00200"></a>00200 <span class="preprocessor">#ifdef HAVE_GRANTPT</span>
<a name="l00201"></a>00201 <span class="preprocessor"></span>
<a name="l00202"></a>00202 <a class="code" href="classPTY.html#a6adc9b83c6f996dac1d1741774ad6d71" title="Grant access to the slave side.">return ::grantpt</a>(ptyfd);
<a name="l00203"></a>00203
<a name="l00204"></a>00204 <span class="preprocessor">#elif defined(HAVE_OPENPTY)</span>
<a name="l00205"></a>00205 <span class="preprocessor"></span>
<a name="l00206"></a>00206 <span class="comment">// the BSD openpty() interface chowns the devices properly for us,</span>
<a name="l00207"></a>00207 <span class="comment">// no need to do this at all</span>
<a name="l00208"></a>00208 <span class="keywordflow">return</span> 0;
<a name="l00209"></a>00209
<a name="l00210"></a>00210 <span class="preprocessor">#else</span>
<a name="l00211"></a>00211 <span class="preprocessor"></span>
<a name="l00212"></a>00212 <span class="comment">// konsole_grantpty only does /dev/pty??</span>
<a name="l00213"></a>00213 <span class="keywordflow">if</span> (ptyname.<a class="codeRef" href="qcstring.html#left">left</a>(8) != <span class="stringliteral">"/dev/pty"</span>)
<a name="l00214"></a>00214 <span class="keywordflow">return</span> 0;
<a name="l00215"></a>00215
<a name="l00216"></a>00216 <span class="comment">// Use konsole_grantpty:</span>
<a name="l00217"></a>00217 <span class="keywordflow">if</span> (KStandardDirs::findExe(<span class="stringliteral">"konsole_grantpty"</span>).isEmpty())
<a name="l00218"></a>00218 {
<a name="l00219"></a>00219 kdError(900) << k_lineinfo << <span class="stringliteral">"konsole_grantpty not found.\n"</span>;
<a name="l00220"></a>00220 <span class="keywordflow">return</span> -1;
<a name="l00221"></a>00221 }
<a name="l00222"></a>00222
<a name="l00223"></a>00223 <span class="comment">// As defined in konsole_grantpty.c</span>
<a name="l00224"></a>00224 <span class="keyword">const</span> <span class="keywordtype">int</span> pty_fileno = 3;
<a name="l00225"></a>00225
<a name="l00226"></a>00226 pid_t pid;
<a name="l00227"></a>00227 <span class="keywordflow">if</span> ((pid = fork()) == -1)
<a name="l00228"></a>00228 {
<a name="l00229"></a>00229 kdError(900) << k_lineinfo << <span class="stringliteral">"fork(): "</span> << perror << <span class="stringliteral">"\n"</span>;
<a name="l00230"></a>00230 <span class="keywordflow">return</span> -1;
<a name="l00231"></a>00231 }
<a name="l00232"></a>00232
<a name="l00233"></a>00233 <span class="keywordflow">if</span> (pid)
<a name="l00234"></a>00234 {
<a name="l00235"></a>00235 <span class="comment">// Parent: wait for child</span>
<a name="l00236"></a>00236 <span class="keywordtype">int</span> ret;
<a name="l00237"></a>00237 waitpid(pid, &ret, 0);
<a name="l00238"></a>00238 <span class="keywordflow">if</span> (WIFEXITED(ret) && !WEXITSTATUS(ret))
<a name="l00239"></a>00239 <span class="keywordflow">return</span> 0;
<a name="l00240"></a>00240 kdError(900) << k_lineinfo << <span class="stringliteral">"konsole_grantpty returned with error: "</span>
<a name="l00241"></a>00241 << WEXITSTATUS(ret) << <span class="stringliteral">"\n"</span>;
<a name="l00242"></a>00242 <span class="keywordflow">return</span> -1;
<a name="l00243"></a>00243 } <span class="keywordflow">else</span>
<a name="l00244"></a>00244 {
<a name="l00245"></a>00245 <span class="comment">// Child: exec konsole_grantpty</span>
<a name="l00246"></a>00246 <span class="keywordflow">if</span> (ptyfd != pty_fileno && dup2(ptyfd, pty_fileno) < 0)
<a name="l00247"></a>00247 _exit(1);
<a name="l00248"></a>00248 execlp(<span class="stringliteral">"konsole_grantpty"</span>, <span class="stringliteral">"konsole_grantpty"</span>, <span class="stringliteral">"--grant"</span>, (<span class="keywordtype">void</span> *)0);
<a name="l00249"></a>00249 kdError(900) << k_lineinfo << <span class="stringliteral">"exec(): "</span> << perror << <span class="stringliteral">"\n"</span>;
<a name="l00250"></a>00250 _exit(1);
<a name="l00251"></a>00251 }
<a name="l00252"></a>00252
<a name="l00253"></a>00253 <span class="comment">// shut up, gcc</span>
<a name="l00254"></a>00254 <span class="keywordflow">return</span> 0;
<a name="l00255"></a>00255
<a name="l00256"></a>00256 <span class="preprocessor">#endif // HAVE_GRANTPT</span>
<a name="l00257"></a>00257 <span class="preprocessor"></span>}
<a name="l00258"></a>00258
<a name="l00259"></a>00259
<a name="l00264"></a><a class="code" href="classPTY.html#a3232c6b84835017f190b0ff05069e8d4">00264</a> <span class="keywordtype">int</span> <a class="code" href="classPTY.html#a3232c6b84835017f190b0ff05069e8d4" title="Unlock the slave side.">PTY::unlockpt</a>()
<a name="l00265"></a>00265 {
<a name="l00266"></a>00266 <span class="keywordflow">if</span> (ptyfd < 0)
<a name="l00267"></a>00267 <span class="keywordflow">return</span> -1;
<a name="l00268"></a>00268
<a name="l00269"></a>00269 <span class="preprocessor">#ifdef HAVE_UNLOCKPT</span>
<a name="l00270"></a>00270 <span class="preprocessor"></span>
<a name="l00271"></a>00271 <span class="comment">// (Linux w/ glibc 2.1, Solaris, ...)</span>
<a name="l00272"></a>00272
<a name="l00273"></a>00273 <a class="code" href="classPTY.html#a3232c6b84835017f190b0ff05069e8d4" title="Unlock the slave side.">return ::unlockpt</a>(ptyfd);
<a name="l00274"></a>00274
<a name="l00275"></a>00275 <span class="preprocessor">#elif defined(TIOCSPTLCK)</span>
<a name="l00276"></a>00276 <span class="preprocessor"></span>
<a name="l00277"></a>00277 <span class="comment">// Unlock pty (Linux w/ UNIX98 PTY's & glibc 2.0)</span>
<a name="l00278"></a>00278 <span class="keywordtype">int</span> flag = 0;
<a name="l00279"></a>00279 <span class="keywordflow">return</span> ioctl(ptyfd, TIOCSPTLCK, &flag);
<a name="l00280"></a>00280
<a name="l00281"></a>00281 <span class="preprocessor">#else</span>
<a name="l00282"></a>00282 <span class="preprocessor"></span>
<a name="l00283"></a>00283 <span class="comment">// Other systems (Linux w/o UNIX98 PTY's, ...)</span>
<a name="l00284"></a>00284 <span class="keywordflow">return</span> 0;
<a name="l00285"></a>00285
<a name="l00286"></a>00286 <span class="preprocessor">#endif</span>
<a name="l00287"></a>00287 <span class="preprocessor"></span>
<a name="l00288"></a>00288 }
<a name="l00289"></a>00289
<a name="l00290"></a>00290
<a name="l00295"></a><a class="code" href="classPTY.html#a076241ed7bb6c66a4a5d642ff08b3a5a">00295</a> <a class="codeRef" href="qcstring.html">QCString</a> <a class="code" href="classPTY.html#a076241ed7bb6c66a4a5d642ff08b3a5a" title="Get the slave name.">PTY::ptsname</a>()
<a name="l00296"></a>00296 {
<a name="l00297"></a>00297 <span class="keywordflow">if</span> (ptyfd < 0)
<a name="l00298"></a>00298 <span class="keywordflow">return</span> 0;
<a name="l00299"></a>00299
<a name="l00300"></a>00300 <span class="keywordflow">return</span> ttyname;
<a name="l00301"></a>00301 }
<a name="l00302"></a>00302
</pre></div></div>
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