📄 tty_ioctl.c
字号:
<a name=L93 href="source/kernel/chr_drv/tty_ioctl.c#L93">93</a> <a name=L94 href="source/kernel/chr_drv/tty_ioctl.c#L94">94</a> <b><i>/*</i></b> <a name=L95 href="source/kernel/chr_drv/tty_ioctl.c#L95">95</a> <b><i> * This only works as the 386 is low-byt-first</i></b> <a name=L96 href="source/kernel/chr_drv/tty_ioctl.c#L96">96</a> <b><i> */</i></b> <a name=L97 href="source/kernel/chr_drv/tty_ioctl.c#L97">97</a> static int <a href="ident?i=set_termio">set_termio</a>(struct <a href="ident?i=tty_struct">tty_struct</a> * tty, struct <a href="ident?i=termio">termio</a> * <a href="ident?i=termio">termio</a>) <a name=L98 href="source/kernel/chr_drv/tty_ioctl.c#L98">98</a> { <a name=L99 href="source/kernel/chr_drv/tty_ioctl.c#L99">99</a> int i;<a name=L100 href="source/kernel/chr_drv/tty_ioctl.c#L100">100</a> struct <a href="ident?i=termio">termio</a> tmp_termio;<a name=L101 href="source/kernel/chr_drv/tty_ioctl.c#L101">101</a> <a name=L102 href="source/kernel/chr_drv/tty_ioctl.c#L102">102</a> for (i=0 ; i< (sizeof (*<a href="ident?i=termio">termio</a>)) ; i++)<a name=L103 href="source/kernel/chr_drv/tty_ioctl.c#L103">103</a> ((char *)&tmp_termio)[i]=<a href="ident?i=get_fs_byte">get_fs_byte</a>(i+(char *)<a href="ident?i=termio">termio</a>);<a name=L104 href="source/kernel/chr_drv/tty_ioctl.c#L104">104</a> *(unsigned short *)&tty-><a href="ident?i=termios">termios</a>.c_iflag = tmp_termio.c_iflag;<a name=L105 href="source/kernel/chr_drv/tty_ioctl.c#L105">105</a> *(unsigned short *)&tty-><a href="ident?i=termios">termios</a>.c_oflag = tmp_termio.c_oflag;<a name=L106 href="source/kernel/chr_drv/tty_ioctl.c#L106">106</a> *(unsigned short *)&tty-><a href="ident?i=termios">termios</a>.c_cflag = tmp_termio.c_cflag;<a name=L107 href="source/kernel/chr_drv/tty_ioctl.c#L107">107</a> *(unsigned short *)&tty-><a href="ident?i=termios">termios</a>.c_lflag = tmp_termio.c_lflag;<a name=L108 href="source/kernel/chr_drv/tty_ioctl.c#L108">108</a> tty-><a href="ident?i=termios">termios</a>.c_line = tmp_termio.c_line;<a name=L109 href="source/kernel/chr_drv/tty_ioctl.c#L109">109</a> for(i=0 ; i < <a href="ident?i=NCC">NCC</a> ; i++)<a name=L110 href="source/kernel/chr_drv/tty_ioctl.c#L110">110</a> tty-><a href="ident?i=termios">termios</a>.c_cc[i] = tmp_termio.c_cc[i];<a name=L111 href="source/kernel/chr_drv/tty_ioctl.c#L111">111</a> <a href="ident?i=change_speed">change_speed</a>(tty);<a name=L112 href="source/kernel/chr_drv/tty_ioctl.c#L112">112</a> return 0;<a name=L113 href="source/kernel/chr_drv/tty_ioctl.c#L113">113</a> }<a name=L114 href="source/kernel/chr_drv/tty_ioctl.c#L114">114</a> <a name=L115 href="source/kernel/chr_drv/tty_ioctl.c#L115">115</a> int <a href="ident?i=tty_ioctl">tty_ioctl</a>(int dev, int cmd, int arg)<a name=L116 href="source/kernel/chr_drv/tty_ioctl.c#L116">116</a> {<a name=L117 href="source/kernel/chr_drv/tty_ioctl.c#L117">117</a> struct <a href="ident?i=tty_struct">tty_struct</a> * tty;<a name=L118 href="source/kernel/chr_drv/tty_ioctl.c#L118">118</a> if (<a href="ident?i=MAJOR">MAJOR</a>(dev) == 5) {<a name=L119 href="source/kernel/chr_drv/tty_ioctl.c#L119">119</a> dev=<a href="ident?i=current">current</a>->tty;<a name=L120 href="source/kernel/chr_drv/tty_ioctl.c#L120">120</a> if (dev<0)<a name=L121 href="source/kernel/chr_drv/tty_ioctl.c#L121">121</a> <a href="ident?i=panic">panic</a>(<i>"tty_ioctl: dev<0"</i>);<a name=L122 href="source/kernel/chr_drv/tty_ioctl.c#L122">122</a> } else<a name=L123 href="source/kernel/chr_drv/tty_ioctl.c#L123">123</a> dev=<a href="ident?i=MINOR">MINOR</a>(dev);<a name=L124 href="source/kernel/chr_drv/tty_ioctl.c#L124">124</a> tty = dev + <a href="ident?i=tty_table">tty_table</a>;<a name=L125 href="source/kernel/chr_drv/tty_ioctl.c#L125">125</a> switch (cmd) {<a name=L126 href="source/kernel/chr_drv/tty_ioctl.c#L126">126</a> case <a href="ident?i=TCGETS">TCGETS</a>:<a name=L127 href="source/kernel/chr_drv/tty_ioctl.c#L127">127</a> return <a href="ident?i=get_termios">get_termios</a>(tty,(struct <a href="ident?i=termios">termios</a> *) arg);<a name=L128 href="source/kernel/chr_drv/tty_ioctl.c#L128">128</a> case <a href="ident?i=TCSETSF">TCSETSF</a>:<a name=L129 href="source/kernel/chr_drv/tty_ioctl.c#L129">129</a> <a href="ident?i=flush">flush</a>(&tty->read_q); <b><i>/* fallthrough */</i></b><a name=L130 href="source/kernel/chr_drv/tty_ioctl.c#L130">130</a> case <a href="ident?i=TCSETSW">TCSETSW</a>:<a name=L131 href="source/kernel/chr_drv/tty_ioctl.c#L131">131</a> <a href="ident?i=wait_until_sent">wait_until_sent</a>(tty); <b><i>/* fallthrough */</i></b><a name=L132 href="source/kernel/chr_drv/tty_ioctl.c#L132">132</a> case <a href="ident?i=TCSETS">TCSETS</a>:<a name=L133 href="source/kernel/chr_drv/tty_ioctl.c#L133">133</a> return <a href="ident?i=set_termios">set_termios</a>(tty,(struct <a href="ident?i=termios">termios</a> *) arg);<a name=L134 href="source/kernel/chr_drv/tty_ioctl.c#L134">134</a> case <a href="ident?i=TCGETA">TCGETA</a>:<a name=L135 href="source/kernel/chr_drv/tty_ioctl.c#L135">135</a> return <a href="ident?i=get_termio">get_termio</a>(tty,(struct <a href="ident?i=termio">termio</a> *) arg);<a name=L136 href="source/kernel/chr_drv/tty_ioctl.c#L136">136</a> case <a href="ident?i=TCSETAF">TCSETAF</a>:<a name=L137 href="source/kernel/chr_drv/tty_ioctl.c#L137">137</a> <a href="ident?i=flush">flush</a>(&tty->read_q); <b><i>/* fallthrough */</i></b><a name=L138 href="source/kernel/chr_drv/tty_ioctl.c#L138">138</a> case <a href="ident?i=TCSETAW">TCSETAW</a>:<a name=L139 href="source/kernel/chr_drv/tty_ioctl.c#L139">139</a> <a href="ident?i=wait_until_sent">wait_until_sent</a>(tty); <b><i>/* fallthrough */</i></b><a name=L140 href="source/kernel/chr_drv/tty_ioctl.c#L140">140</a> case <a href="ident?i=TCSETA">TCSETA</a>:<a name=L141 href="source/kernel/chr_drv/tty_ioctl.c#L141">141</a> return <a href="ident?i=set_termio">set_termio</a>(tty,(struct <a href="ident?i=termio">termio</a> *) arg);<a name=L142 href="source/kernel/chr_drv/tty_ioctl.c#L142">142</a> case <a href="ident?i=TCSBRK">TCSBRK</a>:<a name=L143 href="source/kernel/chr_drv/tty_ioctl.c#L143">143</a> if (!arg) {<a name=L144 href="source/kernel/chr_drv/tty_ioctl.c#L144">144</a> <a href="ident?i=wait_until_sent">wait_until_sent</a>(tty);<a name=L145 href="source/kernel/chr_drv/tty_ioctl.c#L145">145</a> <a href="ident?i=send_break">send_break</a>(tty);<a name=L146 href="source/kernel/chr_drv/tty_ioctl.c#L146">146</a> }<a name=L147 href="source/kernel/chr_drv/tty_ioctl.c#L147">147</a> return 0;<a name=L148 href="source/kernel/chr_drv/tty_ioctl.c#L148">148</a> case <a href="ident?i=TCXONC">TCXONC</a>:<a name=L149 href="source/kernel/chr_drv/tty_ioctl.c#L149">149</a> return -<a href="ident?i=EINVAL">EINVAL</a>; <b><i>/* not implemented */</i></b><a name=L150 href="source/kernel/chr_drv/tty_ioctl.c#L150">150</a> case <a href="ident?i=TCFLSH">TCFLSH</a>:<a name=L151 href="source/kernel/chr_drv/tty_ioctl.c#L151">151</a> if (arg==0)<a name=L152 href="source/kernel/chr_drv/tty_ioctl.c#L152">152</a> <a href="ident?i=flush">flush</a>(&tty->read_q);<a name=L153 href="source/kernel/chr_drv/tty_ioctl.c#L153">153</a> else if (arg==1)<a name=L154 href="source/kernel/chr_drv/tty_ioctl.c#L154">154</a> <a href="ident?i=flush">flush</a>(&tty->write_q);<a name=L155 href="source/kernel/chr_drv/tty_ioctl.c#L155">155</a> else if (arg==2) {<a name=L156 href="source/kernel/chr_drv/tty_ioctl.c#L156">156</a> <a href="ident?i=flush">flush</a>(&tty->read_q);<a name=L157 href="source/kernel/chr_drv/tty_ioctl.c#L157">157</a> <a href="ident?i=flush">flush</a>(&tty->write_q);<a name=L158 href="source/kernel/chr_drv/tty_ioctl.c#L158">158</a> } else<a name=L159 href="source/kernel/chr_drv/tty_ioctl.c#L159">159</a> return -<a href="ident?i=EINVAL">EINVAL</a>;<a name=L160 href="source/kernel/chr_drv/tty_ioctl.c#L160">160</a> return 0;<a name=L161 href="source/kernel/chr_drv/tty_ioctl.c#L161">161</a> case <a href="ident?i=TIOCEXCL">TIOCEXCL</a>:<a name=L162 href="source/kernel/chr_drv/tty_ioctl.c#L162">162</a> return -<a href="ident?i=EINVAL">EINVAL</a>; <b><i>/* not implemented */</i></b><a name=L163 href="source/kernel/chr_drv/tty_ioctl.c#L163">163</a> case <a href="ident?i=TIOCNXCL">TIOCNXCL</a>:<a name=L164 href="source/kernel/chr_drv/tty_ioctl.c#L164">164</a> return -<a href="ident?i=EINVAL">EINVAL</a>; <b><i>/* not implemented */</i></b><a name=L165 href="source/kernel/chr_drv/tty_ioctl.c#L165">165</a> case <a href="ident?i=TIOCSCTTY">TIOCSCTTY</a>:<a name=L166 href="source/kernel/chr_drv/tty_ioctl.c#L166">166</a> return -<a href="ident?i=EINVAL">EINVAL</a>; <b><i>/* set controlling term NI */</i></b><a name=L167 href="source/kernel/chr_drv/tty_ioctl.c#L167">167</a> case <a href="ident?i=TIOCGPGRP">TIOCGPGRP</a>:<a name=L168 href="source/kernel/chr_drv/tty_ioctl.c#L168">168</a> <a href="ident?i=verify_area">verify_area</a>((void *) arg,4);<a name=L169 href="source/kernel/chr_drv/tty_ioctl.c#L169">169</a> <a href="ident?i=put_fs_long">put_fs_long</a>(tty->pgrp,(unsigned long *) arg);<a name=L170 href="source/kernel/chr_drv/tty_ioctl.c#L170">170</a> return 0;<a name=L171 href="source/kernel/chr_drv/tty_ioctl.c#L171">171</a> case <a href="ident?i=TIOCSPGRP">TIOCSPGRP</a>:<a name=L172 href="source/kernel/chr_drv/tty_ioctl.c#L172">172</a> tty->pgrp=<a href="ident?i=get_fs_long">get_fs_long</a>((unsigned long *) arg);<a name=L173 href="source/kernel/chr_drv/tty_ioctl.c#L173">173</a> return 0;<a name=L174 href="source/kernel/chr_drv/tty_ioctl.c#L174">174</a> case <a href="ident?i=TIOCOUTQ">TIOCOUTQ</a>:<a name=L175 href="source/kernel/chr_drv/tty_ioctl.c#L175">175</a> <a href="ident?i=verify_area">verify_area</a>((void *) arg,4);<a name=L176 href="source/kernel/chr_drv/tty_ioctl.c#L176">176</a> <a href="ident?i=put_fs_long">put_fs_long</a>(<a href="ident?i=CHARS">CHARS</a>(tty->write_q),(unsigned long *) arg);<a name=L177 href="source/kernel/chr_drv/tty_ioctl.c#L177">177</a> return 0;<a name=L178 href="source/kernel/chr_drv/tty_ioctl.c#L178">178</a> case <a href="ident?i=TIOCINQ">TIOCINQ</a>:<a name=L179 href="source/kernel/chr_drv/tty_ioctl.c#L179">179</a> <a href="ident?i=verify_area">verify_area</a>((void *) arg,4);<a name=L180 href="source/kernel/chr_drv/tty_ioctl.c#L180">180</a> <a href="ident?i=put_fs_long">put_fs_long</a>(<a href="ident?i=CHARS">CHARS</a>(tty->secondary),<a name=L181 href="source/kernel/chr_drv/tty_ioctl.c#L181">181</a> (unsigned long *) arg);<a name=L182 href="source/kernel/chr_drv/tty_ioctl.c#L182">182</a> return 0;<a name=L183 href="source/kernel/chr_drv/tty_ioctl.c#L183">183</a> case <a href="ident?i=TIOCSTI">TIOCSTI</a>:<a name=L184 href="source/kernel/chr_drv/tty_ioctl.c#L184">184</a> return -<a href="ident?i=EINVAL">EINVAL</a>; <b><i>/* not implemented */</i></b><a name=L185 href="source/kernel/chr_drv/tty_ioctl.c#L185">185</a> case <a href="ident?i=TIOCGWINSZ">TIOCGWINSZ</a>:<a name=L186 href="source/kernel/chr_drv/tty_ioctl.c#L186">186</a> return -<a href="ident?i=EINVAL">EINVAL</a>; <b><i>/* not implemented */</i></b><a name=L187 href="source/kernel/chr_drv/tty_ioctl.c#L187">187</a> case <a href="ident?i=TIOCSWINSZ">TIOCSWINSZ</a>:<a name=L188 href="source/kernel/chr_drv/tty_ioctl.c#L188">188</a> return -<a href="ident?i=EINVAL">EINVAL</a>; <b><i>/* not implemented */</i></b><a name=L189 href="source/kernel/chr_drv/tty_ioctl.c#L189">189</a> case <a href="ident?i=TIOCMGET">TIOCMGET</a>:<a name=L190 href="source/kernel/chr_drv/tty_ioctl.c#L190">190</a> return -<a href="ident?i=EINVAL">EINVAL</a>; <b><i>/* not implemented */</i></b><a name=L191 href="source/kernel/chr_drv/tty_ioctl.c#L191">191</a> case <a href="ident?i=TIOCMBIS">TIOCMBIS</a>:<a name=L192 href="source/kernel/chr_drv/tty_ioctl.c#L192">192</a> return -<a href="ident?i=EINVAL">EINVAL</a>; <b><i>/* not implemented */</i></b><a name=L193 href="source/kernel/chr_drv/tty_ioctl.c#L193">193</a> case <a href="ident?i=TIOCMBIC">TIOCMBIC</a>:<a name=L194 href="source/kernel/chr_drv/tty_ioctl.c#L194">194</a> return -<a href="ident?i=EINVAL">EINVAL</a>; <b><i>/* not implemented */</i></b><a name=L195 href="source/kernel/chr_drv/tty_ioctl.c#L195">195</a> case <a href="ident?i=TIOCMSET">TIOCMSET</a>:<a name=L196 href="source/kernel/chr_drv/tty_ioctl.c#L196">196</a> return -<a href="ident?i=EINVAL">EINVAL</a>; <b><i>/* not implemented */</i></b><a name=L197 href="source/kernel/chr_drv/tty_ioctl.c#L197">197</a> case <a href="ident?i=TIOCGSOFTCAR">TIOCGSOFTCAR</a>:<a name=L198 href="source/kernel/chr_drv/tty_ioctl.c#L198">198</a> return -<a href="ident?i=EINVAL">EINVAL</a>; <b><i>/* not implemented */</i></b><a name=L199 href="source/kernel/chr_drv/tty_ioctl.c#L199">199</a> case <a href="ident?i=TIOCSSOFTCAR">TIOCSSOFTCAR</a>:<a name=L200 href="source/kernel/chr_drv/tty_ioctl.c#L200">200</a> return -<a href="ident?i=EINVAL">EINVAL</a>; <b><i>/* not implemented */</i></b><a name=L201 href="source/kernel/chr_drv/tty_ioctl.c#L201">201</a> default:<a name=L202 href="source/kernel/chr_drv/tty_ioctl.c#L202">202</a> return -<a href="ident?i=EINVAL">EINVAL</a>;<a name=L203 href="source/kernel/chr_drv/tty_ioctl.c#L203">203</a> }<a name=L204 href="source/kernel/chr_drv/tty_ioctl.c#L204">204</a> }<a name=L205 href="source/kernel/chr_drv/tty_ioctl.c#L205">205</a> </pre><hr><div align=center> [<b><i>源代码浏览</i></b>] [<a href="diff/kernel/chr_drv/tty_ioctl.c">区别标定</a>] [<a href="ident">标识符搜索</a>] [<a href="search">文本搜索</a>] [<a href="find">文件搜索</a>] </div><hr>本网页由 <a href="http:blurb.html">LXR引擎</a> 自动生成.<br></html>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -