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add uip git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1125 bbd45198-f89e-11dd-88c7-29a3b14d5316
2010-11-27 00:27:45 +08:00
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<title>uIP 1.0: The uIP TCP/IP stack</title>
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<h1>The uIP TCP/IP stack</h1><hr><a name="_details"></a><h2>Detailed Description</h2>
uIP is an implementation of the TCP/IP protocol stack intended for small 8-bit and 16-bit microcontrollers.
<p>
uIP provides the necessary protocols for Internet communication, with a very small code footprint and RAM requirements - the uIP code size is on the order of a few kilobytes and RAM usage is on the order of a few hundred bytes.
<p>
<table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Files</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">file &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00136.html">uip.h</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Header file for the uIP TCP/IP stack. <br></td></tr>
<p>
<tr><td class="memItemLeft" nowrap align="right" valign="top">file &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00135.html">uip.c</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">The uIP TCP/IP stack code. <br></td></tr>
<p>
<tr><td colspan="2"><br><h2>Modules</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00144.html">uIP configuration functions</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">The uIP configuration functions are used for setting run-time parameters in uIP such as IP addresses. <br></td></tr>
<p>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00145.html">uIP initialization functions</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">The uIP initialization functions are used for booting uIP. <br></td></tr>
<p>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00146.html">uIP device driver functions</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">These functions are used by a network device driver for interacting with uIP. <br></td></tr>
<p>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00147.html">uIP application functions</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Functions used by an application running of top of uIP. <br></td></tr>
<p>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00148.html">uIP conversion functions</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">These functions can be used for converting between different data formats used by uIP. <br></td></tr>
<p>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00149.html">Variables used in uIP device drivers</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">uIP has a few global variables that are used in device drivers for uIP. <br></td></tr>
<p>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00152.html">uIP Address Resolution Protocol</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">The Address Resolution Protocol ARP is used for mapping between IP addresses and link level addresses such as the Ethernet MAC addresses. <br></td></tr>
<p>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00154.html">uIP TCP throughput booster hack</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">The basic uIP TCP implementation only allows each TCP connection to have a single TCP segment in flight at any given time. <br></td></tr>
<p>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00151.html">Architecture specific uIP functions</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">The functions in the architecture specific module implement the IP check sum and 32-bit additions. <br></td></tr>
<p>
<tr><td colspan="2"><br><h2>Data Structures</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">struct &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00088.html">uip_conn</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Representation of a uIP TCP connection. <a href="a00088.html#_details">More...</a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">struct &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00095.html">uip_udp_conn</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Representation of a uIP UDP connection. <a href="a00095.html#_details">More...</a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">struct &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00093.html">uip_stats</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">The structure holding the TCP/IP statistics that are gathered if UIP_STATISTICS is set to 1. <a href="a00093.html#_details">More...</a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">struct &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00094.html">uip_tcpip_hdr</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">struct &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00091.html">uip_icmpip_hdr</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">struct &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00096.html">uip_udpip_hdr</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">struct &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00089.html">uip_eth_addr</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Representation of a 48-bit Ethernet address. <a href="a00089.html#_details">More...</a><br></td></tr>
<tr><td colspan="2"><br><h2>Defines</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g6bfa488f87f68a6f7f4a3efb9e45eaf8"></a><!-- doxytag: member="uip::UIP_ACKDATA" ref="g6bfa488f87f68a6f7f4a3efb9e45eaf8" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g6bfa488f87f68a6f7f4a3efb9e45eaf8">UIP_ACKDATA</a>&nbsp;&nbsp;&nbsp;1</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g39ce739bd352d7e348e37395ce903e43"></a><!-- doxytag: member="uip::UIP_NEWDATA" ref="g39ce739bd352d7e348e37395ce903e43" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g39ce739bd352d7e348e37395ce903e43">UIP_NEWDATA</a>&nbsp;&nbsp;&nbsp;2</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gf848ce44c810492e7a35c2d23a429f45"></a><!-- doxytag: member="uip::UIP_REXMIT" ref="gf848ce44c810492e7a35c2d23a429f45" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gf848ce44c810492e7a35c2d23a429f45">UIP_REXMIT</a>&nbsp;&nbsp;&nbsp;4</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gf0ed78fd2be24d849cdd5af75e3b2674"></a><!-- doxytag: member="uip::UIP_POLL" ref="gf0ed78fd2be24d849cdd5af75e3b2674" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gf0ed78fd2be24d849cdd5af75e3b2674">UIP_POLL</a>&nbsp;&nbsp;&nbsp;8</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g57e6dc1d58a36d0ed53a3dd29ccc5798"></a><!-- doxytag: member="uip::UIP_CLOSE" ref="g57e6dc1d58a36d0ed53a3dd29ccc5798" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g57e6dc1d58a36d0ed53a3dd29ccc5798">UIP_CLOSE</a>&nbsp;&nbsp;&nbsp;16</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ga4c4310e54f18541b09e1e251fe7b22d"></a><!-- doxytag: member="uip::UIP_ABORT" ref="ga4c4310e54f18541b09e1e251fe7b22d" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#ga4c4310e54f18541b09e1e251fe7b22d">UIP_ABORT</a>&nbsp;&nbsp;&nbsp;32</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gf84316f469ce0726985c0702db49a989"></a><!-- doxytag: member="uip::UIP_CONNECTED" ref="gf84316f469ce0726985c0702db49a989" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gf84316f469ce0726985c0702db49a989">UIP_CONNECTED</a>&nbsp;&nbsp;&nbsp;64</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g2d3ba4b14d6d2f6576f9b547800b7945"></a><!-- doxytag: member="uip::UIP_TIMEDOUT" ref="g2d3ba4b14d6d2f6576f9b547800b7945" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g2d3ba4b14d6d2f6576f9b547800b7945">UIP_TIMEDOUT</a>&nbsp;&nbsp;&nbsp;128</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gabc40c09f49d15acb1b1a7f02bb3a807"></a><!-- doxytag: member="uip::UIP_DATA" ref="gabc40c09f49d15acb1b1a7f02bb3a807" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gabc40c09f49d15acb1b1a7f02bb3a807">UIP_DATA</a>&nbsp;&nbsp;&nbsp;1</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g041aea91aa6ef84dcc6cac3c51db9b2f"></a><!-- doxytag: member="uip::UIP_TIMER" ref="g041aea91aa6ef84dcc6cac3c51db9b2f" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g041aea91aa6ef84dcc6cac3c51db9b2f">UIP_TIMER</a>&nbsp;&nbsp;&nbsp;2</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gd605357e29affb0d3104294c90f09905"></a><!-- doxytag: member="uip::UIP_POLL_REQUEST" ref="gd605357e29affb0d3104294c90f09905" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gd605357e29affb0d3104294c90f09905">UIP_POLL_REQUEST</a>&nbsp;&nbsp;&nbsp;3</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g5c97ae587595b5444be80f5ecc1d3382"></a><!-- doxytag: member="uip::UIP_UDP_SEND_CONN" ref="g5c97ae587595b5444be80f5ecc1d3382" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g5c97ae587595b5444be80f5ecc1d3382">UIP_UDP_SEND_CONN</a>&nbsp;&nbsp;&nbsp;4</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gf0ccbc3bb2a3ba1ebc255c7b3fcedd24"></a><!-- doxytag: member="uip::UIP_UDP_TIMER" ref="gf0ccbc3bb2a3ba1ebc255c7b3fcedd24" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gf0ccbc3bb2a3ba1ebc255c7b3fcedd24">UIP_UDP_TIMER</a>&nbsp;&nbsp;&nbsp;5</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g28eda870cff3d8e3cf2949e6f57a502b"></a><!-- doxytag: member="uip::UIP_CLOSED" ref="g28eda870cff3d8e3cf2949e6f57a502b" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g28eda870cff3d8e3cf2949e6f57a502b">UIP_CLOSED</a>&nbsp;&nbsp;&nbsp;0</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ga5e3c856b86725125d19fccc34cd9eb5"></a><!-- doxytag: member="uip::UIP_SYN_RCVD" ref="ga5e3c856b86725125d19fccc34cd9eb5" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#ga5e3c856b86725125d19fccc34cd9eb5">UIP_SYN_RCVD</a>&nbsp;&nbsp;&nbsp;1</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g8af482dec973db57d8b3bd3f69461488"></a><!-- doxytag: member="uip::UIP_SYN_SENT" ref="g8af482dec973db57d8b3bd3f69461488" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g8af482dec973db57d8b3bd3f69461488">UIP_SYN_SENT</a>&nbsp;&nbsp;&nbsp;2</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gae59b70658f28ee6e998eaaab05e423f"></a><!-- doxytag: member="uip::UIP_ESTABLISHED" ref="gae59b70658f28ee6e998eaaab05e423f" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gae59b70658f28ee6e998eaaab05e423f">UIP_ESTABLISHED</a>&nbsp;&nbsp;&nbsp;3</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ga533c394b1fa0030205534befa31c525"></a><!-- doxytag: member="uip::UIP_FIN_WAIT_1" ref="ga533c394b1fa0030205534befa31c525" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#ga533c394b1fa0030205534befa31c525">UIP_FIN_WAIT_1</a>&nbsp;&nbsp;&nbsp;4</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g160128ab5d2ea3cc497b91ee4eb4ef99"></a><!-- doxytag: member="uip::UIP_FIN_WAIT_2" ref="g160128ab5d2ea3cc497b91ee4eb4ef99" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g160128ab5d2ea3cc497b91ee4eb4ef99">UIP_FIN_WAIT_2</a>&nbsp;&nbsp;&nbsp;5</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g64d9affc680a445d708234e70450477b"></a><!-- doxytag: member="uip::UIP_CLOSING" ref="g64d9affc680a445d708234e70450477b" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g64d9affc680a445d708234e70450477b">UIP_CLOSING</a>&nbsp;&nbsp;&nbsp;6</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gfff0ed43201bf1e2020de1a0d6cac070"></a><!-- doxytag: member="uip::UIP_TIME_WAIT" ref="gfff0ed43201bf1e2020de1a0d6cac070" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gfff0ed43201bf1e2020de1a0d6cac070">UIP_TIME_WAIT</a>&nbsp;&nbsp;&nbsp;7</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gd135fb0cfdfb2c212f0f51865a3640e4"></a><!-- doxytag: member="uip::UIP_LAST_ACK" ref="gd135fb0cfdfb2c212f0f51865a3640e4" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gd135fb0cfdfb2c212f0f51865a3640e4">UIP_LAST_ACK</a>&nbsp;&nbsp;&nbsp;8</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g13dfcb4a5f920e108253ade527a66cc2"></a><!-- doxytag: member="uip::UIP_TS_MASK" ref="g13dfcb4a5f920e108253ade527a66cc2" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g13dfcb4a5f920e108253ade527a66cc2">UIP_TS_MASK</a>&nbsp;&nbsp;&nbsp;15</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gde29ec025e6754afd8cc24c954a8dec8"></a><!-- doxytag: member="uip::UIP_STOPPED" ref="gde29ec025e6754afd8cc24c954a8dec8" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gde29ec025e6754afd8cc24c954a8dec8">UIP_STOPPED</a>&nbsp;&nbsp;&nbsp;16</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#ge0825474feee11b4e038bfe71757875f">UIP_APPDATA_SIZE</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">The buffer size available for user data in the <a class="el" href="a00150.html#gb81e78f890dbbee50c533a9734b74fd9">uip_buf</a> buffer. <a href="#ge0825474feee11b4e038bfe71757875f"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g359951eecd80541c2101f628a9da9146"></a><!-- doxytag: member="uip::UIP_PROTO_ICMP" ref="g359951eecd80541c2101f628a9da9146" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g359951eecd80541c2101f628a9da9146">UIP_PROTO_ICMP</a>&nbsp;&nbsp;&nbsp;1</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g517c770991459cc62dc009c0d3875c6a"></a><!-- doxytag: member="uip::UIP_PROTO_TCP" ref="g517c770991459cc62dc009c0d3875c6a" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g517c770991459cc62dc009c0d3875c6a">UIP_PROTO_TCP</a>&nbsp;&nbsp;&nbsp;6</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gf72d7b9a737707dcfb2c41fec2b6792e"></a><!-- doxytag: member="uip::UIP_PROTO_UDP" ref="gf72d7b9a737707dcfb2c41fec2b6792e" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gf72d7b9a737707dcfb2c41fec2b6792e">UIP_PROTO_UDP</a>&nbsp;&nbsp;&nbsp;17</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gad0321f4c570f9983c6de81ece3ddc20"></a><!-- doxytag: member="uip::UIP_PROTO_ICMP6" ref="gad0321f4c570f9983c6de81ece3ddc20" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gad0321f4c570f9983c6de81ece3ddc20">UIP_PROTO_ICMP6</a>&nbsp;&nbsp;&nbsp;58</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g6bc12c6c7b56f73ce5d57abfdcdc6eb5"></a><!-- doxytag: member="uip::UIP_IPH_LEN" ref="g6bc12c6c7b56f73ce5d57abfdcdc6eb5" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g6bc12c6c7b56f73ce5d57abfdcdc6eb5">UIP_IPH_LEN</a>&nbsp;&nbsp;&nbsp;20</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gb948296aea6b6b3aa1f156799c4d479c"></a><!-- doxytag: member="uip::UIP_UDPH_LEN" ref="gb948296aea6b6b3aa1f156799c4d479c" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gb948296aea6b6b3aa1f156799c4d479c">UIP_UDPH_LEN</a>&nbsp;&nbsp;&nbsp;8</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g17d111686f98e4c09db73a770ac3f1a4"></a><!-- doxytag: member="uip::UIP_TCPH_LEN" ref="g17d111686f98e4c09db73a770ac3f1a4" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g17d111686f98e4c09db73a770ac3f1a4">UIP_TCPH_LEN</a>&nbsp;&nbsp;&nbsp;20</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g6f2b90c597ec23f39ec716ccec11233c"></a><!-- doxytag: member="uip::UIP_IPUDPH_LEN" ref="g6f2b90c597ec23f39ec716ccec11233c" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g6f2b90c597ec23f39ec716ccec11233c">UIP_IPUDPH_LEN</a>&nbsp;&nbsp;&nbsp;(UIP_UDPH_LEN + UIP_IPH_LEN)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g15f2617f7dc1713f9d10282125c6027b"></a><!-- doxytag: member="uip::UIP_IPTCPH_LEN" ref="g15f2617f7dc1713f9d10282125c6027b" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g15f2617f7dc1713f9d10282125c6027b">UIP_IPTCPH_LEN</a>&nbsp;&nbsp;&nbsp;(UIP_TCPH_LEN + UIP_IPH_LEN)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gee37386b2ab828787c05227eb109def7"></a><!-- doxytag: member="uip::UIP_TCPIP_HLEN" ref="gee37386b2ab828787c05227eb109def7" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gee37386b2ab828787c05227eb109def7">UIP_TCPIP_HLEN</a>&nbsp;&nbsp;&nbsp;UIP_IPTCPH_LEN</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g88e60aa2cf23e1c65d630701db08c743"></a><!-- doxytag: member="uip::TCP_FIN" ref="g88e60aa2cf23e1c65d630701db08c743" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g88e60aa2cf23e1c65d630701db08c743">TCP_FIN</a>&nbsp;&nbsp;&nbsp;0x01</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g6020613f5062417d9811cfa837215c83"></a><!-- doxytag: member="uip::TCP_SYN" ref="g6020613f5062417d9811cfa837215c83" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g6020613f5062417d9811cfa837215c83">TCP_SYN</a>&nbsp;&nbsp;&nbsp;0x02</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g5ca559def464ef20d8b1f7d32f2f160d"></a><!-- doxytag: member="uip::TCP_RST" ref="g5ca559def464ef20d8b1f7d32f2f160d" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g5ca559def464ef20d8b1f7d32f2f160d">TCP_RST</a>&nbsp;&nbsp;&nbsp;0x04</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g1320fd0006a2f70138bc2d0018dda829"></a><!-- doxytag: member="uip::TCP_PSH" ref="g1320fd0006a2f70138bc2d0018dda829" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g1320fd0006a2f70138bc2d0018dda829">TCP_PSH</a>&nbsp;&nbsp;&nbsp;0x08</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g44b3b1ab31a403ba28ec135adfcbefef"></a><!-- doxytag: member="uip::TCP_ACK" ref="g44b3b1ab31a403ba28ec135adfcbefef" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g44b3b1ab31a403ba28ec135adfcbefef">TCP_ACK</a>&nbsp;&nbsp;&nbsp;0x10</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gc84f499cba8a02fc0e306c10b2acabf0"></a><!-- doxytag: member="uip::TCP_URG" ref="gc84f499cba8a02fc0e306c10b2acabf0" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gc84f499cba8a02fc0e306c10b2acabf0">TCP_URG</a>&nbsp;&nbsp;&nbsp;0x20</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g1425d4a0c2760adb653a04c0fb137a8d"></a><!-- doxytag: member="uip::TCP_CTL" ref="g1425d4a0c2760adb653a04c0fb137a8d" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g1425d4a0c2760adb653a04c0fb137a8d">TCP_CTL</a>&nbsp;&nbsp;&nbsp;0x3f</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g1215163245304bad20d6c5608ad75ab7"></a><!-- doxytag: member="uip::TCP_OPT_END" ref="g1215163245304bad20d6c5608ad75ab7" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g1215163245304bad20d6c5608ad75ab7">TCP_OPT_END</a>&nbsp;&nbsp;&nbsp;0</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g9f1822e1d231235edacad691f3cb7bbb"></a><!-- doxytag: member="uip::TCP_OPT_NOOP" ref="g9f1822e1d231235edacad691f3cb7bbb" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g9f1822e1d231235edacad691f3cb7bbb">TCP_OPT_NOOP</a>&nbsp;&nbsp;&nbsp;1</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g691688604655ea8943d15f14c60027d8"></a><!-- doxytag: member="uip::TCP_OPT_MSS" ref="g691688604655ea8943d15f14c60027d8" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g691688604655ea8943d15f14c60027d8">TCP_OPT_MSS</a>&nbsp;&nbsp;&nbsp;2</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g12f3bf821224b8e7b48a57ed3cea15cf"></a><!-- doxytag: member="uip::TCP_OPT_MSS_LEN" ref="g12f3bf821224b8e7b48a57ed3cea15cf" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g12f3bf821224b8e7b48a57ed3cea15cf">TCP_OPT_MSS_LEN</a>&nbsp;&nbsp;&nbsp;4</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g5c5b1834e497f53ad0ef947bbe9777fa"></a><!-- doxytag: member="uip::ICMP_ECHO_REPLY" ref="g5c5b1834e497f53ad0ef947bbe9777fa" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g5c5b1834e497f53ad0ef947bbe9777fa">ICMP_ECHO_REPLY</a>&nbsp;&nbsp;&nbsp;0</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gd58231410d58e34b455328b888a9e73c"></a><!-- doxytag: member="uip::ICMP_ECHO" ref="gd58231410d58e34b455328b888a9e73c" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gd58231410d58e34b455328b888a9e73c">ICMP_ECHO</a>&nbsp;&nbsp;&nbsp;8</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g207d17b633cd095120a74bc1f2257b17"></a><!-- doxytag: member="uip::ICMP6_ECHO_REPLY" ref="g207d17b633cd095120a74bc1f2257b17" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g207d17b633cd095120a74bc1f2257b17">ICMP6_ECHO_REPLY</a>&nbsp;&nbsp;&nbsp;129</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g4cc3e223b63f27b546d62e9a258dba5a"></a><!-- doxytag: member="uip::ICMP6_ECHO" ref="g4cc3e223b63f27b546d62e9a258dba5a" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g4cc3e223b63f27b546d62e9a258dba5a">ICMP6_ECHO</a>&nbsp;&nbsp;&nbsp;128</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g1cea57e3ea526f210b1068e6dcf7b4f4"></a><!-- doxytag: member="uip::ICMP6_NEIGHBOR_SOLICITATION" ref="g1cea57e3ea526f210b1068e6dcf7b4f4" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g1cea57e3ea526f210b1068e6dcf7b4f4">ICMP6_NEIGHBOR_SOLICITATION</a>&nbsp;&nbsp;&nbsp;135</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g62c03e0a308cc23929a80fe8d8f9dc1e"></a><!-- doxytag: member="uip::ICMP6_NEIGHBOR_ADVERTISEMENT" ref="g62c03e0a308cc23929a80fe8d8f9dc1e" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g62c03e0a308cc23929a80fe8d8f9dc1e">ICMP6_NEIGHBOR_ADVERTISEMENT</a>&nbsp;&nbsp;&nbsp;136</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g1d3211dbbdfb22d6a47b60dddcf945e8"></a><!-- doxytag: member="uip::ICMP6_FLAG_S" ref="g1d3211dbbdfb22d6a47b60dddcf945e8" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g1d3211dbbdfb22d6a47b60dddcf945e8">ICMP6_FLAG_S</a>&nbsp;&nbsp;&nbsp;(1 &lt;&lt; 6)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g42288d5c3cf4b10becefec657f441e54"></a><!-- doxytag: member="uip::ICMP6_OPTION_SOURCE_LINK_ADDRESS" ref="g42288d5c3cf4b10becefec657f441e54" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g42288d5c3cf4b10becefec657f441e54">ICMP6_OPTION_SOURCE_LINK_ADDRESS</a>&nbsp;&nbsp;&nbsp;1</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g8387881de3a8bfd3c0d57b9d04ac9b7e"></a><!-- doxytag: member="uip::ICMP6_OPTION_TARGET_LINK_ADDRESS" ref="g8387881de3a8bfd3c0d57b9d04ac9b7e" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g8387881de3a8bfd3c0d57b9d04ac9b7e">ICMP6_OPTION_TARGET_LINK_ADDRESS</a>&nbsp;&nbsp;&nbsp;2</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g24f52ac52d6e714cb04a5aa01be3bdd0"></a><!-- doxytag: member="uip::BUF" ref="g24f52ac52d6e714cb04a5aa01be3bdd0" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g24f52ac52d6e714cb04a5aa01be3bdd0">BUF</a>&nbsp;&nbsp;&nbsp;((struct <a class="el" href="a00094.html">uip_tcpip_hdr</a> *)&amp;<a class="el" href="a00150.html#gb81e78f890dbbee50c533a9734b74fd9">uip_buf</a>[UIP_LLH_LEN])</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g96544dedc1cdc71ad2ad54bf1d5e5433"></a><!-- doxytag: member="uip::FBUF" ref="g96544dedc1cdc71ad2ad54bf1d5e5433" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g96544dedc1cdc71ad2ad54bf1d5e5433">FBUF</a>&nbsp;&nbsp;&nbsp;((struct <a class="el" href="a00094.html">uip_tcpip_hdr</a> *)&amp;uip_reassbuf[0])</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g4309376690872fa4beb4f025f5cc199b"></a><!-- doxytag: member="uip::ICMPBUF" ref="g4309376690872fa4beb4f025f5cc199b" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g4309376690872fa4beb4f025f5cc199b">ICMPBUF</a>&nbsp;&nbsp;&nbsp;((struct <a class="el" href="a00091.html">uip_icmpip_hdr</a> *)&amp;<a class="el" href="a00150.html#gb81e78f890dbbee50c533a9734b74fd9">uip_buf</a>[UIP_LLH_LEN])</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gb9435261753469accec0c9bf8a5a2686"></a><!-- doxytag: member="uip::UDPBUF" ref="gb9435261753469accec0c9bf8a5a2686" args="" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gb9435261753469accec0c9bf8a5a2686">UDPBUF</a>&nbsp;&nbsp;&nbsp;((struct <a class="el" href="a00096.html">uip_udpip_hdr</a> *)&amp;<a class="el" href="a00150.html#gb81e78f890dbbee50c533a9734b74fd9">uip_buf</a>[UIP_LLH_LEN])</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g9c0814ed491fa452ec97910c0728d410"></a><!-- doxytag: member="uip::UIP_STAT" ref="g9c0814ed491fa452ec97910c0728d410" args="(s)" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g9c0814ed491fa452ec97910c0728d410">UIP_STAT</a>(s)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g013c3a06a8b58589a77f4a3442f89c2a"></a><!-- doxytag: member="uip::UIP_LOG" ref="g013c3a06a8b58589a77f4a3442f89c2a" args="(m)" -->
#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g013c3a06a8b58589a77f4a3442f89c2a">UIP_LOG</a>(m)</td></tr>
<tr><td colspan="2"><br><h2>Typedefs</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g20ceef9d0868d391c2f33041b02cb1f1"></a><!-- doxytag: member="uip::uip_ip4addr_t" ref="g20ceef9d0868d391c2f33041b02cb1f1" args="[2]" -->
typedef <a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g20ceef9d0868d391c2f33041b02cb1f1">uip_ip4addr_t</a> [2]</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Repressentation of an IP address. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g9ebb4dac683163840eab9c6c41ad61f7"></a><!-- doxytag: member="uip::uip_ip6addr_t" ref="g9ebb4dac683163840eab9c6c41ad61f7" args="[8]" -->
typedef <a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g9ebb4dac683163840eab9c6c41ad61f7">uip_ip6addr_t</a> [8]</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g1ef35301f43a5bbb9f89f07b5a36b9a0"></a><!-- doxytag: member="uip::uip_ipaddr_t" ref="g1ef35301f43a5bbb9f89f07b5a36b9a0" args="" -->
typedef <a class="el" href="a00150.html#g20ceef9d0868d391c2f33041b02cb1f1">uip_ip4addr_t</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g1ef35301f43a5bbb9f89f07b5a36b9a0">uip_ipaddr_t</a></td></tr>
<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g266263ac78a1361a2b1d15741d3b0675"></a><!-- doxytag: member="uip::uip_process" ref="g266263ac78a1361a2b1d15741d3b0675" args="(u8_t flag)" -->
void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g266263ac78a1361a2b1d15741d3b0675">uip_process</a> (<a class="el" href="a00153.html#g4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> flag)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gb6683dd83fe1c8de9a24086d4b69e907">uip_chksum</a> (<a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a> *buf, <a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a> len)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Calculate the Internet checksum over a buffer. <a href="#gb6683dd83fe1c8de9a24086d4b69e907"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g2addf34c7d457c1a7899a7e2171ef1e9">uip_ipchksum</a> (void)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Calculate the IP header checksum of the packet header in uip_buf. <a href="#g2addf34c7d457c1a7899a7e2171ef1e9"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g85b65e38aa74eba18979156f97a94a87">uip_tcpchksum</a> (void)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Calculate the TCP checksum of the packet in uip_buf and uip_appdata. <a href="#g85b65e38aa74eba18979156f97a94a87"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g7023a34ba9e9d03b5fbedbcb32924453">uip_udpchksum</a> (void)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Calculate the UDP checksum of the packet in uip_buf and uip_appdata. <a href="#g7023a34ba9e9d03b5fbedbcb32924453"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g22f140b02c354dfebcc7ad481c3bcd68">uip_setipid</a> (<a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a> id)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">uIP initialization function. <a href="#g22f140b02c354dfebcc7ad481c3bcd68"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g6832e4d2d046536b6472f7ac92340f68">uip_add32</a> (<a class="el" href="a00153.html#g4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *op32, <a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a> op16)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Carry out a 32-bit addition. <a href="#g6832e4d2d046536b6472f7ac92340f68"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gc48ed5f0d27721ef62a3ed02a5ad8d2e">uip_init</a> (void)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">uIP initialization function. <a href="#gc48ed5f0d27721ef62a3ed02a5ad8d2e"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a00088.html">uip_conn</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g9c24fba2cd8f7f62accb0a0d5bbe4dad">uip_connect</a> (<a class="el" href="a00150.html#g1ef35301f43a5bbb9f89f07b5a36b9a0">uip_ipaddr_t</a> *ripaddr, <a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a> rport)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Connect to a remote host using TCP. <a href="#g9c24fba2cd8f7f62accb0a0d5bbe4dad"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a00095.html">uip_udp_conn</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g79c4110211247df3fb30b8cf1c4c02af">uip_udp_new</a> (<a class="el" href="a00150.html#g1ef35301f43a5bbb9f89f07b5a36b9a0">uip_ipaddr_t</a> *ripaddr, <a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a> rport)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Set up a new UDP connection. <a href="#g79c4110211247df3fb30b8cf1c4c02af"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gaa585784b0914cac1d37f07f85457008">uip_unlisten</a> (<a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a> port)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Stop listening to the specified port. <a href="#gaa585784b0914cac1d37f07f85457008"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gdd1ab3704ecd4900eec61a6897d32dc8">uip_listen</a> (<a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a> port)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Start listening to the specified port. <a href="#gdd1ab3704ecd4900eec61a6897d32dc8"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#ga22b04cac8cf283ca12f028578bebc06">htons</a> (<a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a> val)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Convert 16-bit quantity from host byte order to network byte order. <a href="#ga22b04cac8cf283ca12f028578bebc06"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g04b053a623aac7cd4195157d470661b3">uip_send</a> (const void *data, int len)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Send data on the current connection. <a href="#g04b053a623aac7cd4195157d470661b3"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Variables</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g561b8eda32e059d4e7397f776268cc63">uip_appdata</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Pointer to the application data in the packet buffer. <a href="#g561b8eda32e059d4e7397f776268cc63"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a00088.html">uip_conn</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g788ffac72342f6172343d7f8099cbe1a">uip_conn</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Pointer to the current TCP connection. <a href="#g788ffac72342f6172343d7f8099cbe1a"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gf703683056d2bfa5c81fa157dcb20fe2"></a><!-- doxytag: member="uip::uip_conns" ref="gf703683056d2bfa5c81fa157dcb20fe2" args="[UIP_CONNS]" -->
<a class="el" href="a00088.html">uip_conn</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gf703683056d2bfa5c81fa157dcb20fe2">uip_conns</a> [UIP_CONNS]</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g210f227119fc972e6222c9cb452e15a9"></a><!-- doxytag: member="uip::uip_udp_conn" ref="g210f227119fc972e6222c9cb452e15a9" args="" -->
<a class="el" href="a00095.html">uip_udp_conn</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g210f227119fc972e6222c9cb452e15a9">uip_udp_conn</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">The current UDP connection. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="geb533744817cf6695d75293369c2248b"></a><!-- doxytag: member="uip::uip_udp_conns" ref="geb533744817cf6695d75293369c2248b" args="[UIP_UDP_CONNS]" -->
<a class="el" href="a00095.html">uip_udp_conn</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#geb533744817cf6695d75293369c2248b">uip_udp_conns</a> [UIP_UDP_CONNS]</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a00093.html">uip_stats</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g9ee50a40597e67fce96541ab56c3b712">uip_stat</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">The uIP TCP/IP statistics. <a href="#g9ee50a40597e67fce96541ab56c3b712"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gb4ef6b00924990e7a293f66715b6d1d1"></a><!-- doxytag: member="uip::uip_flags" ref="gb4ef6b00924990e7a293f66715b6d1d1" args="" -->
<a class="el" href="a00153.html#g4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gb4ef6b00924990e7a293f66715b6d1d1">uip_flags</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g7d3673f52f5846b6961d23b150decd54"></a><!-- doxytag: member="uip::uip_hostaddr" ref="g7d3673f52f5846b6961d23b150decd54" args="" -->
<a class="el" href="a00150.html#g1ef35301f43a5bbb9f89f07b5a36b9a0">uip_ipaddr_t</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g7d3673f52f5846b6961d23b150decd54">uip_hostaddr</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g3237be0d9ec457de0177689ee23c0d5c"></a><!-- doxytag: member="uip::uip_netmask" ref="g3237be0d9ec457de0177689ee23c0d5c" args="" -->
<a class="el" href="a00150.html#g1ef35301f43a5bbb9f89f07b5a36b9a0">uip_ipaddr_t</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g3237be0d9ec457de0177689ee23c0d5c">uip_netmask</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g20df5c82f2a15a508c19e505b5d9de2b"></a><!-- doxytag: member="uip::uip_draddr" ref="g20df5c82f2a15a508c19e505b5d9de2b" args="" -->
<a class="el" href="a00150.html#g1ef35301f43a5bbb9f89f07b5a36b9a0">uip_ipaddr_t</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g20df5c82f2a15a508c19e505b5d9de2b">uip_draddr</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g7d3673f52f5846b6961d23b150decd54"></a><!-- doxytag: member="uip::uip_hostaddr" ref="g7d3673f52f5846b6961d23b150decd54" args="" -->
<a class="el" href="a00150.html#g1ef35301f43a5bbb9f89f07b5a36b9a0">uip_ipaddr_t</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g7d3673f52f5846b6961d23b150decd54">uip_hostaddr</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g20df5c82f2a15a508c19e505b5d9de2b"></a><!-- doxytag: member="uip::uip_draddr" ref="g20df5c82f2a15a508c19e505b5d9de2b" args="" -->
<a class="el" href="a00150.html#g1ef35301f43a5bbb9f89f07b5a36b9a0">uip_ipaddr_t</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g20df5c82f2a15a508c19e505b5d9de2b">uip_draddr</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g3237be0d9ec457de0177689ee23c0d5c"></a><!-- doxytag: member="uip::uip_netmask" ref="g3237be0d9ec457de0177689ee23c0d5c" args="" -->
<a class="el" href="a00150.html#g1ef35301f43a5bbb9f89f07b5a36b9a0">uip_ipaddr_t</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g3237be0d9ec457de0177689ee23c0d5c">uip_netmask</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g499bb98a0b4ae9a98553ede81317606d"></a><!-- doxytag: member="uip::uip_ethaddr" ref="g499bb98a0b4ae9a98553ede81317606d" args="" -->
<a class="el" href="a00089.html">uip_eth_addr</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g499bb98a0b4ae9a98553ede81317606d">uip_ethaddr</a> = {{0,0,0,0,0,0}}</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a00153.html#g4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gb81e78f890dbbee50c533a9734b74fd9">uip_buf</a> [UIP_BUFSIZE+2]</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">The uIP packet buffer. <a href="#gb81e78f890dbbee50c533a9734b74fd9"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g561b8eda32e059d4e7397f776268cc63">uip_appdata</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Pointer to the application data in the packet buffer. <a href="#g561b8eda32e059d4e7397f776268cc63"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ga05a3dde2048480fa3ab2a5961898d18"></a><!-- doxytag: member="uip::uip_sappdata" ref="ga05a3dde2048480fa3ab2a5961898d18" args="" -->
void *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#ga05a3dde2048480fa3ab2a5961898d18">uip_sappdata</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g12a33f0c09711167bdf3dd7d7cf8c5a1">uip_len</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">The length of the packet in the uip_buf buffer. <a href="#g12a33f0c09711167bdf3dd7d7cf8c5a1"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g5b5615dc240daed20949c0fded2b4679"></a><!-- doxytag: member="uip::uip_slen" ref="g5b5615dc240daed20949c0fded2b4679" args="" -->
<a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g5b5615dc240daed20949c0fded2b4679">uip_slen</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gb4ef6b00924990e7a293f66715b6d1d1"></a><!-- doxytag: member="uip::uip_flags" ref="gb4ef6b00924990e7a293f66715b6d1d1" args="" -->
<a class="el" href="a00153.html#g4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gb4ef6b00924990e7a293f66715b6d1d1">uip_flags</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a00088.html">uip_conn</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g788ffac72342f6172343d7f8099cbe1a">uip_conn</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Pointer to the current TCP connection. <a href="#g788ffac72342f6172343d7f8099cbe1a"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gf703683056d2bfa5c81fa157dcb20fe2"></a><!-- doxytag: member="uip::uip_conns" ref="gf703683056d2bfa5c81fa157dcb20fe2" args="[UIP_CONNS]" -->
<a class="el" href="a00088.html">uip_conn</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#gf703683056d2bfa5c81fa157dcb20fe2">uip_conns</a> [UIP_CONNS]</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g236d5c7872f59c8fe7b701c7252b976e"></a><!-- doxytag: member="uip::uip_listenports" ref="g236d5c7872f59c8fe7b701c7252b976e" args="[UIP_LISTENPORTS]" -->
<a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g236d5c7872f59c8fe7b701c7252b976e">uip_listenports</a> [UIP_LISTENPORTS]</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g210f227119fc972e6222c9cb452e15a9"></a><!-- doxytag: member="uip::uip_udp_conn" ref="g210f227119fc972e6222c9cb452e15a9" args="" -->
<a class="el" href="a00095.html">uip_udp_conn</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g210f227119fc972e6222c9cb452e15a9">uip_udp_conn</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">The current UDP connection. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="geb533744817cf6695d75293369c2248b"></a><!-- doxytag: member="uip::uip_udp_conns" ref="geb533744817cf6695d75293369c2248b" args="[UIP_UDP_CONNS]" -->
<a class="el" href="a00095.html">uip_udp_conn</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#geb533744817cf6695d75293369c2248b">uip_udp_conns</a> [UIP_UDP_CONNS]</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g2a0cf5d86c58fab216414ce59bf1fea1"></a><!-- doxytag: member="uip::uip_acc32" ref="g2a0cf5d86c58fab216414ce59bf1fea1" args="[4]" -->
<a class="el" href="a00153.html#g4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00150.html#g2a0cf5d86c58fab216414ce59bf1fea1">uip_acc32</a> [4]</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">4-byte array used for the 32-bit sequence number calculations. <br></td></tr>
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<hr><h2>Define Documentation</h2>
<a class="anchor" name="ge0825474feee11b4e038bfe71757875f"></a><!-- doxytag: member="uip.h::UIP_APPDATA_SIZE" ref="ge0825474feee11b4e038bfe71757875f" args="" --><p>
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<td class="md" nowrap valign="top">#define UIP_APPDATA_SIZE </td>
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<p>
The buffer size available for user data in the <a class="el" href="a00150.html#gb81e78f890dbbee50c533a9734b74fd9">uip_buf</a> buffer.
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This macro holds the available size for user data in the <a class="el" href="a00150.html#gb81e78f890dbbee50c533a9734b74fd9">uip_buf</a> buffer. The macro is intended to be used for checking bounds of available user data.<p>
Example: <div class="fragment"><pre class="fragment"> snprintf(<a class="code" href="a00150.html#g561b8eda32e059d4e7397f776268cc63">uip_appdata</a>, <a class="code" href="a00150.html#ge0825474feee11b4e038bfe71757875f">UIP_APPDATA_SIZE</a>, <span class="stringliteral">"%u\n"</span>, i);
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<p>
Definition at line <a class="el" href="a00202.html#l01506">1506</a> of file <a class="el" href="a00202.html">uip.h</a>. </td>
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<hr><h2>Function Documentation</h2>
<a class="anchor" name="ga22b04cac8cf283ca12f028578bebc06"></a><!-- doxytag: member="uip.c::htons" ref="ga22b04cac8cf283ca12f028578bebc06" args="(u16_t val)" --><p>
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<td class="md" nowrap valign="top"><a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a> htons </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top"><a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a>&nbsp;</td>
<td class="mdname1" valign="top" nowrap> <em>val</em> </td>
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<p>
Convert 16-bit quantity from host byte order to network byte order.
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This function is primarily used for converting variables from host byte order to network byte order. For converting constants to network byte order, use the <a class="el" href="a00148.html#g69a7a4951ff21b302267532c21ee78fc">HTONS()</a> macro instead.
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Definition at line <a class="el" href="a00201.html#l01882">1882</a> of file <a class="el" href="a00201.html">uip.c</a>.
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References <a class="el" href="a00202.html#l01070">HTONS</a>.
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Referenced by <a class="el" href="a00201.html#l00311">uip_chksum()</a>, <a class="el" href="a00201.html#l00407">uip_connect()</a>, <a class="el" href="a00201.html#l00318">uip_ipchksum()</a>, <a class="el" href="a00201.html#l00473">uip_udp_new()</a>, and <a class="el" href="a00180.html#l00140">webclient_get()</a>. </td>
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<a class="anchor" name="g6832e4d2d046536b6472f7ac92340f68"></a><!-- doxytag: member="uip.c::uip_add32" ref="g6832e4d2d046536b6472f7ac92340f68" args="(u8_t *op32, u16_t op16)" --><p>
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<td class="md" nowrap valign="top">void uip_add32 </td>
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<td class="md" nowrap valign="top"><a class="el" href="a00153.html#g4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *&nbsp;</td>
<td class="mdname" nowrap> <em>op32</em>, </td>
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<td class="md" nowrap><a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a>&nbsp;</td>
<td class="mdname" nowrap> <em>op16</em></td>
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<td class="md"></td>
<td class="md">)&nbsp;</td>
<td class="md" colspan="2"></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<p>
Carry out a 32-bit addition.
<p>
Because not all architectures for which uIP is intended has native 32-bit arithmetic, uIP uses an external C function for doing the required 32-bit additions in the TCP protocol processing. This function should add the two arguments and place the result in the global variable uip_acc32.<p>
<dl compact><dt><b>Note:</b></dt><dd>The 32-bit integer pointed to by the op32 parameter and the result in the uip_acc32 variable are in network byte order (big endian).</dd></dl>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>op32</em>&nbsp;</td><td>A pointer to a 4-byte array representing a 32-bit integer in network byte order (big endian).</td></tr>
<tr><td valign="top"></td><td valign="top"><em>op16</em>&nbsp;</td><td>A 16-bit integer in host byte order. </td></tr>
</table>
</dl>
<p>
Definition at line <a class="el" href="a00201.html#l00249">249</a> of file <a class="el" href="a00201.html">uip.c</a>.
<p>
Referenced by <a class="el" href="a00199.html#l00049">uip_split_output()</a>. </td>
</tr>
</table>
<a class="anchor" name="gb6683dd83fe1c8de9a24086d4b69e907"></a><!-- doxytag: member="uip.h::uip_chksum" ref="gb6683dd83fe1c8de9a24086d4b69e907" args="(u16_t *buf, u16_t len)" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
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<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"><a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a> uip_chksum </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top"><a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a> *&nbsp;</td>
<td class="mdname" nowrap> <em>buf</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td class="md"></td>
<td class="md" nowrap><a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a>&nbsp;</td>
<td class="mdname" nowrap> <em>len</em></td>
</tr>
<tr>
<td class="md"></td>
<td class="md">)&nbsp;</td>
<td class="md" colspan="2"></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<p>
Calculate the Internet checksum over a buffer.
<p>
The Internet checksum is the one's complement of the one's complement sum of all 16-bit words in the buffer.<p>
See RFC1071.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>buf</em>&nbsp;</td><td>A pointer to the buffer over which the checksum is to be computed.</td></tr>
<tr><td valign="top"></td><td valign="top"><em>len</em>&nbsp;</td><td>The length of the buffer over which the checksum is to be computed.</td></tr>
</table>
</dl>
<dl compact><dt><b>Returns:</b></dt><dd>The Internet checksum of the buffer. </dd></dl>
<p>
Definition at line <a class="el" href="a00201.html#l00311">311</a> of file <a class="el" href="a00201.html">uip.c</a>.
<p>
References <a class="el" href="a00201.html#l01882">htons()</a>. </td>
</tr>
</table>
<a class="anchor" name="g9c24fba2cd8f7f62accb0a0d5bbe4dad"></a><!-- doxytag: member="uip.c::uip_connect" ref="g9c24fba2cd8f7f62accb0a0d5bbe4dad" args="(uip_ipaddr_t *ripaddr, u16_t rport)" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
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<td class="md" nowrap valign="top">struct <a class="el" href="a00088.html">uip_conn</a>* uip_connect </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top"><a class="el" href="a00150.html#g1ef35301f43a5bbb9f89f07b5a36b9a0">uip_ipaddr_t</a> *&nbsp;</td>
<td class="mdname" nowrap> <em>ripaddr</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td class="md"></td>
<td class="md" nowrap><a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a>&nbsp;</td>
<td class="mdname" nowrap> <em>port</em></td>
</tr>
<tr>
<td class="md"></td>
<td class="md">)&nbsp;</td>
<td class="md" colspan="2"></td>
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</td>
</tr>
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<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<p>
Connect to a remote host using TCP.
<p>
This function is used to start a new connection to the specified port on the specied host. It allocates a new connection identifier, sets the connection to the SYN_SENT state and sets the retransmission timer to 0. This will cause a TCP SYN segment to be sent out the next time this connection is periodically processed, which usually is done within 0.5 seconds after the call to <a class="el" href="a00147.html#g8096b0c4b543dc408f4dd031ddae7240">uip_connect()</a>.<p>
<dl compact><dt><b>Note:</b></dt><dd>This function is avaliable only if support for active open has been configured by defining UIP_ACTIVE_OPEN to 1 in <a class="el" href="a00140.html">uipopt.h</a>.<p>
Since this function requires the port number to be in network byte order, a conversion using <a class="el" href="a00148.html#g69a7a4951ff21b302267532c21ee78fc">HTONS()</a> or <a class="el" href="a00148.html#ga22b04cac8cf283ca12f028578bebc06">htons()</a> is necessary.</dd></dl>
<div class="fragment"><pre class="fragment"> <a class="code" href="a00150.html#g1ef35301f43a5bbb9f89f07b5a36b9a0">uip_ipaddr_t</a> ipaddr;
<a class="code" href="a00148.html#g87f0b54ade0d159fba495089128a4932">uip_ipaddr</a>(&amp;ipaddr, 192,168,1,2);
<a class="code" href="a00147.html#g8096b0c4b543dc408f4dd031ddae7240">uip_connect</a>(&amp;ipaddr, <a class="code" href="a00148.html#g69a7a4951ff21b302267532c21ee78fc">HTONS</a>(80));
</pre></div><p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>ripaddr</em>&nbsp;</td><td>The IP address of the remote hot.</td></tr>
<tr><td valign="top"></td><td valign="top"><em>port</em>&nbsp;</td><td>A 16-bit port number in network byte order.</td></tr>
</table>
</dl>
<dl compact><dt><b>Returns:</b></dt><dd>A pointer to the uIP connection identifier for the new connection, or NULL if no connection could be allocated. </dd></dl>
<p>
Definition at line <a class="el" href="a00201.html#l00407">407</a> of file <a class="el" href="a00201.html">uip.c</a>.
<p>
References <a class="el" href="a00201.html#l01882">htons()</a>, <a class="el" href="a00202.html#l01156">uip_conn::lport</a>, <a class="el" href="a00202.html#l01174">uip_conn::tcpstateflags</a>, <a class="el" href="a00202.html#l01372">UIP_CLOSED</a>, <a class="el" href="a00201.html#l00163">uip_conn</a>, <a class="el" href="a00201.html#l00166">uip_conns</a>, and <a class="el" href="a00206.html#l00245">UIP_CONNS</a>.
<p>
Referenced by <a class="el" href="a00174.html#l00233">smtp_send()</a>, and <a class="el" href="a00180.html#l00140">webclient_get()</a>. </td>
</tr>
</table>
<a class="anchor" name="gc48ed5f0d27721ef62a3ed02a5ad8d2e"></a><!-- doxytag: member="uip.c::uip_init" ref="gc48ed5f0d27721ef62a3ed02a5ad8d2e" args="(void)" --><p>
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<td class="mdRow">
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<tr>
<td class="md" nowrap valign="top">void uip_init </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">void&nbsp;</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
<td class="md" nowrap></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<p>
uIP initialization function.
<p>
This function should be called at boot up to initilize the uIP TCP/IP stack.
<p>
Definition at line <a class="el" href="a00201.html#l00379">379</a> of file <a class="el" href="a00201.html">uip.c</a>.
<p>
References <a class="el" href="a00206.html#l00259">UIP_LISTENPORTS</a>. </td>
</tr>
</table>
<a class="anchor" name="g2addf34c7d457c1a7899a7e2171ef1e9"></a><!-- doxytag: member="uip.h::uip_ipchksum" ref="g2addf34c7d457c1a7899a7e2171ef1e9" args="(void)" --><p>
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<tr>
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<td class="md" nowrap valign="top"><a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a> uip_ipchksum </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">void&nbsp;</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
<td class="md" nowrap></td>
</tr>
</table>
</td>
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<table cellspacing="5" cellpadding="0" border="0">
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<td>
&nbsp;
</td>
<td>
<p>
Calculate the IP header checksum of the packet header in uip_buf.
<p>
The IP header checksum is the Internet checksum of the 20 bytes of the IP header.<p>
<dl compact><dt><b>Returns:</b></dt><dd>The IP header checksum of the IP header in the uip_buf buffer. </dd></dl>
<p>
Definition at line <a class="el" href="a00201.html#l00318">318</a> of file <a class="el" href="a00201.html">uip.c</a>.
<p>
References <a class="el" href="a00201.html#l00001">DEBUG_PRINTF</a>, <a class="el" href="a00201.html#l01882">htons()</a>, <a class="el" href="a00202.html#l01518">UIP_IPH_LEN</a>, and <a class="el" href="a00206.html#l00448">UIP_LLH_LEN</a>.
<p>
Referenced by <a class="el" href="a00201.html#l00682">uip_process()</a>, and <a class="el" href="a00199.html#l00049">uip_split_output()</a>. </td>
</tr>
</table>
<a class="anchor" name="gdd1ab3704ecd4900eec61a6897d32dc8"></a><!-- doxytag: member="uip.c::uip_listen" ref="gdd1ab3704ecd4900eec61a6897d32dc8" args="(u16_t port)" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top">void uip_listen </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top"><a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a>&nbsp;</td>
<td class="mdname1" valign="top" nowrap> <em>port</em> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
<td class="md" nowrap></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<p>
Start listening to the specified port.
<p>
<dl compact><dt><b>Note:</b></dt><dd>Since this function expects the port number in network byte order, a conversion using <a class="el" href="a00148.html#g69a7a4951ff21b302267532c21ee78fc">HTONS()</a> or <a class="el" href="a00148.html#ga22b04cac8cf283ca12f028578bebc06">htons()</a> is necessary.</dd></dl>
<div class="fragment"><pre class="fragment"> <a class="code" href="a00147.html#gdd1ab3704ecd4900eec61a6897d32dc8">uip_listen</a>(<a class="code" href="a00148.html#g69a7a4951ff21b302267532c21ee78fc">HTONS</a>(80));
</pre></div><p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>port</em>&nbsp;</td><td>A 16-bit port number in network byte order. </td></tr>
</table>
</dl>
<p>
Definition at line <a class="el" href="a00201.html#l00529">529</a> of file <a class="el" href="a00201.html">uip.c</a>.
<p>
References <a class="el" href="a00206.html#l00259">UIP_LISTENPORTS</a>.
<p>
Referenced by <a class="el" href="a00170.html#l00041">hello_world_init()</a>, and <a class="el" href="a00184.html#l00333">httpd_init()</a>. </td>
</tr>
</table>
<a class="anchor" name="g04b053a623aac7cd4195157d470661b3"></a><!-- doxytag: member="uip.c::uip_send" ref="g04b053a623aac7cd4195157d470661b3" args="(const void *data, int len)" --><p>
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<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
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<td class="md" nowrap valign="top">void uip_send </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">const void *&nbsp;</td>
<td class="mdname" nowrap> <em>data</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td class="md"></td>
<td class="md" nowrap>int&nbsp;</td>
<td class="mdname" nowrap> <em>len</em></td>
</tr>
<tr>
<td class="md"></td>
<td class="md">)&nbsp;</td>
<td class="md" colspan="2"></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<p>
Send data on the current connection.
<p>
This function is used to send out a single segment of TCP data. Only applications that have been invoked by uIP for event processing can send data.<p>
The amount of data that actually is sent out after a call to this funcion is determined by the maximum amount of data TCP allows. uIP will automatically crop the data so that only the appropriate amount of data is sent. The function <a class="el" href="a00147.html#gb5fecbc62edd128012cea0f47b57ab9f">uip_mss()</a> can be used to query uIP for the amount of data that actually will be sent.<p>
<dl compact><dt><b>Note:</b></dt><dd>This function does not guarantee that the sent data will arrive at the destination. If the data is lost in the network, the application will be invoked with the <a class="el" href="a00147.html#ga8933ad15a2e2947dae4a5cff50e6007">uip_rexmit()</a> event being set. The application will then have to resend the data using this function.</dd></dl>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>data</em>&nbsp;</td><td>A pointer to the data which is to be sent.</td></tr>
<tr><td valign="top"></td><td valign="top"><em>len</em>&nbsp;</td><td>The maximum amount of data bytes to be sent. </td></tr>
</table>
</dl>
<p>
Definition at line <a class="el" href="a00201.html#l01888">1888</a> of file <a class="el" href="a00201.html">uip.c</a>.
<p>
References <a class="el" href="a00201.html#l00145">uip_sappdata</a>, and <a class="el" href="a00201.html#l00155">uip_slen</a>. </td>
</tr>
</table>
<a class="anchor" name="g22f140b02c354dfebcc7ad481c3bcd68"></a><!-- doxytag: member="uip.c::uip_setipid" ref="g22f140b02c354dfebcc7ad481c3bcd68" args="(u16_t id)" --><p>
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<table cellpadding="0" cellspacing="0" border="0">
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<td class="md" nowrap valign="top">void uip_setipid </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top"><a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a>&nbsp;</td>
<td class="mdname1" valign="top" nowrap> <em>id</em> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
<td class="md" nowrap></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<p>
uIP initialization function.
<p>
This function may be used at boot time to set the initial ip_id.
<p>
Definition at line <a class="el" href="a00201.html#l00181">181</a> of file <a class="el" href="a00201.html">uip.c</a>. </td>
</tr>
</table>
<a class="anchor" name="g85b65e38aa74eba18979156f97a94a87"></a><!-- doxytag: member="uip.h::uip_tcpchksum" ref="g85b65e38aa74eba18979156f97a94a87" args="(void)" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
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<td class="md" nowrap valign="top"><a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a> uip_tcpchksum </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">void&nbsp;</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
<td class="md" nowrap></td>
</tr>
</table>
</td>
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<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<p>
Calculate the TCP checksum of the packet in uip_buf and uip_appdata.
<p>
The TCP checksum is the Internet checksum of data contents of the TCP segment, and a pseudo-header as defined in RFC793.<p>
<dl compact><dt><b>Returns:</b></dt><dd>The TCP checksum of the TCP segment in uip_buf and pointed to by uip_appdata. </dd></dl>
<p>
Definition at line <a class="el" href="a00201.html#l00364">364</a> of file <a class="el" href="a00201.html">uip.c</a>.
<p>
References <a class="el" href="a00202.html#l01510">UIP_PROTO_TCP</a>.
<p>
Referenced by <a class="el" href="a00199.html#l00049">uip_split_output()</a>. </td>
</tr>
</table>
<a class="anchor" name="g79c4110211247df3fb30b8cf1c4c02af"></a><!-- doxytag: member="uip.c::uip_udp_new" ref="g79c4110211247df3fb30b8cf1c4c02af" args="(uip_ipaddr_t *ripaddr, u16_t rport)" --><p>
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<td class="md" nowrap valign="top">struct <a class="el" href="a00095.html">uip_udp_conn</a>* uip_udp_new </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top"><a class="el" href="a00150.html#g1ef35301f43a5bbb9f89f07b5a36b9a0">uip_ipaddr_t</a> *&nbsp;</td>
<td class="mdname" nowrap> <em>ripaddr</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td class="md"></td>
<td class="md" nowrap><a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a>&nbsp;</td>
<td class="mdname" nowrap> <em>rport</em></td>
</tr>
<tr>
<td class="md"></td>
<td class="md">)&nbsp;</td>
<td class="md" colspan="2"></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<p>
Set up a new UDP connection.
<p>
This function sets up a new UDP connection. The function will automatically allocate an unused local port for the new connection. However, another port can be chosen by using the <a class="el" href="a00147.html#ga20812098a4663c8a9fc4ce8e95391b6">uip_udp_bind()</a> call, after the <a class="el" href="a00147.html#g79c4110211247df3fb30b8cf1c4c02af">uip_udp_new()</a> function has been called.<p>
Example: <div class="fragment"><pre class="fragment"> <a class="code" href="a00150.html#g1ef35301f43a5bbb9f89f07b5a36b9a0">uip_ipaddr_t</a> addr;
<span class="keyword">struct </span><a class="code" href="a00095.html">uip_udp_conn</a> *c;
<a class="code" href="a00148.html#g87f0b54ade0d159fba495089128a4932">uip_ipaddr</a>(&amp;addr, 192,168,2,1);
c = <a class="code" href="a00147.html#g79c4110211247df3fb30b8cf1c4c02af">uip_udp_new</a>(&amp;addr, <a class="code" href="a00148.html#g69a7a4951ff21b302267532c21ee78fc">HTONS</a>(12345));
<span class="keywordflow">if</span>(c != <a class="code" href="a00160.html#g070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {
<a class="code" href="a00147.html#ga20812098a4663c8a9fc4ce8e95391b6">uip_udp_bind</a>(c, <a class="code" href="a00148.html#g69a7a4951ff21b302267532c21ee78fc">HTONS</a>(12344));
}
</pre></div> <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>ripaddr</em>&nbsp;</td><td>The IP address of the remote host.</td></tr>
<tr><td valign="top"></td><td valign="top"><em>rport</em>&nbsp;</td><td>The remote port number in network byte order.</td></tr>
</table>
</dl>
<dl compact><dt><b>Returns:</b></dt><dd>The <a class="el" href="a00095.html">uip_udp_conn</a> structure for the new connection or NULL if no connection could be allocated. </dd></dl>
<p>
Definition at line <a class="el" href="a00201.html#l00473">473</a> of file <a class="el" href="a00201.html">uip.c</a>.
<p>
References <a class="el" href="a00201.html#l01882">htons()</a>, <a class="el" href="a00202.html#l01212">uip_udp_conn::lport</a>, <a class="el" href="a00201.html#l00173">uip_udp_conn</a>, <a class="el" href="a00201.html#l00174">uip_udp_conns</a>, and <a class="el" href="a00206.html#l00206">UIP_UDP_CONNS</a>.
<p>
Referenced by <a class="el" href="a00172.html#l00438">resolv_conf()</a>. </td>
</tr>
</table>
<a class="anchor" name="g7023a34ba9e9d03b5fbedbcb32924453"></a><!-- doxytag: member="uip.h::uip_udpchksum" ref="g7023a34ba9e9d03b5fbedbcb32924453" args="(void)" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"><a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a> uip_udpchksum </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">void&nbsp;</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
<td class="md" nowrap></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<p>
Calculate the UDP checksum of the packet in uip_buf and uip_appdata.
<p>
The UDP checksum is the Internet checksum of data contents of the UDP segment, and a pseudo-header as defined in RFC768.<p>
<dl compact><dt><b>Returns:</b></dt><dd>The UDP checksum of the UDP segment in uip_buf and pointed to by uip_appdata. </dd></dl>
<p>
Referenced by <a class="el" href="a00201.html#l00682">uip_process()</a>. </td>
</tr>
</table>
<a class="anchor" name="gaa585784b0914cac1d37f07f85457008"></a><!-- doxytag: member="uip.c::uip_unlisten" ref="gaa585784b0914cac1d37f07f85457008" args="(u16_t port)" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top">void uip_unlisten </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top"><a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a>&nbsp;</td>
<td class="mdname1" valign="top" nowrap> <em>port</em> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
<td class="md" nowrap></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<p>
Stop listening to the specified port.
<p>
<dl compact><dt><b>Note:</b></dt><dd>Since this function expects the port number in network byte order, a conversion using <a class="el" href="a00148.html#g69a7a4951ff21b302267532c21ee78fc">HTONS()</a> or <a class="el" href="a00148.html#ga22b04cac8cf283ca12f028578bebc06">htons()</a> is necessary.</dd></dl>
<div class="fragment"><pre class="fragment"> <a class="code" href="a00147.html#gaa585784b0914cac1d37f07f85457008">uip_unlisten</a>(<a class="code" href="a00148.html#g69a7a4951ff21b302267532c21ee78fc">HTONS</a>(80));
</pre></div><p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>port</em>&nbsp;</td><td>A 16-bit port number in network byte order. </td></tr>
</table>
</dl>
<p>
Definition at line <a class="el" href="a00201.html#l00518">518</a> of file <a class="el" href="a00201.html">uip.c</a>.
<p>
References <a class="el" href="a00206.html#l00259">UIP_LISTENPORTS</a>. </td>
</tr>
</table>
<hr><h2>Variable Documentation</h2>
<a class="anchor" name="g561b8eda32e059d4e7397f776268cc63"></a><!-- doxytag: member="uip.c::uip_appdata" ref="g561b8eda32e059d4e7397f776268cc63" args="" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top">void* <a class="el" href="a00150.html#g561b8eda32e059d4e7397f776268cc63">uip_appdata</a> </td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<p>
Pointer to the application data in the packet buffer.
<p>
This pointer points to the application data when the application is called. If the application wishes to send data, the application may use this space to write the data into before calling <a class="el" href="a00147.html#g04b053a623aac7cd4195157d470661b3">uip_send()</a>.
<p>
Definition at line <a class="el" href="a00201.html#l00143">143</a> of file <a class="el" href="a00201.html">uip.c</a>.
<p>
Referenced by <a class="el" href="a00201.html#l00682">uip_process()</a>, and <a class="el" href="a00199.html#l00049">uip_split_output()</a>. </td>
</tr>
</table>
<a class="anchor" name="g561b8eda32e059d4e7397f776268cc63"></a><!-- doxytag: member="uip.h::uip_appdata" ref="g561b8eda32e059d4e7397f776268cc63" args="" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top">void* <a class="el" href="a00150.html#g561b8eda32e059d4e7397f776268cc63">uip_appdata</a> </td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<p>
Pointer to the application data in the packet buffer.
<p>
This pointer points to the application data when the application is called. If the application wishes to send data, the application may use this space to write the data into before calling <a class="el" href="a00147.html#g04b053a623aac7cd4195157d470661b3">uip_send()</a>. <dl compact><dt><b>Examples: </b></dt><dd>
<a class="el" href="a00048.html#a9">dhcpc.c</a>, <a class="el" href="a00046.html#a136">resolv.c</a>, <a class="el" href="a00044.html#a224">telnetd.c</a>, and <a class="el" href="a00040.html#a275">webclient.c</a>.</dl>
<p>
Definition at line <a class="el" href="a00201.html#l00143">143</a> of file <a class="el" href="a00201.html">uip.c</a>.
<p>
Referenced by <a class="el" href="a00201.html#l00682">uip_process()</a>, and <a class="el" href="a00199.html#l00049">uip_split_output()</a>. </td>
</tr>
</table>
<a class="anchor" name="gb81e78f890dbbee50c533a9734b74fd9"></a><!-- doxytag: member="uip.c::uip_buf" ref="gb81e78f890dbbee50c533a9734b74fd9" args="[UIP_BUFSIZE+2]" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"><a class="el" href="a00153.html#g4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> <a class="el" href="a00150.html#gb81e78f890dbbee50c533a9734b74fd9">uip_buf</a>[UIP_BUFSIZE+2] </td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<p>
The uIP packet buffer.
<p>
The uip_buf array is used to hold incoming and outgoing packets. The device driver should place incoming data into this buffer. When sending data, the device driver should read the link level headers and the TCP/IP headers from this buffer. The size of the link level headers is configured by the UIP_LLH_LEN define.<p>
<dl compact><dt><b>Note:</b></dt><dd>The application data need not be placed in this buffer, so the device driver must read it from the place pointed to by the uip_appdata pointer as illustrated by the following example: <div class="fragment"><pre class="fragment"> <span class="keywordtype">void</span>
devicedriver_send(<span class="keywordtype">void</span>)
{
hwsend(&amp;<a class="code" href="a00146.html#gb81e78f890dbbee50c533a9734b74fd9">uip_buf</a>[0], <a class="code" href="a00153.html#ge6f4a2453dbd8bc60e6a82774552366a">UIP_LLH_LEN</a>);
<span class="keywordflow">if</span>(<a class="code" href="a00149.html#g12a33f0c09711167bdf3dd7d7cf8c5a1">uip_len</a> &lt;= <a class="code" href="a00153.html#ge6f4a2453dbd8bc60e6a82774552366a">UIP_LLH_LEN</a> + <a class="code" href="a00150.html#gee37386b2ab828787c05227eb109def7">UIP_TCPIP_HLEN</a>) {
hwsend(&amp;<a class="code" href="a00146.html#gb81e78f890dbbee50c533a9734b74fd9">uip_buf</a>[<a class="code" href="a00153.html#ge6f4a2453dbd8bc60e6a82774552366a">UIP_LLH_LEN</a>], <a class="code" href="a00149.html#g12a33f0c09711167bdf3dd7d7cf8c5a1">uip_len</a> - UIP_LLH_LEN);
} <span class="keywordflow">else</span> {
hwsend(&amp;<a class="code" href="a00146.html#gb81e78f890dbbee50c533a9734b74fd9">uip_buf</a>[<a class="code" href="a00153.html#ge6f4a2453dbd8bc60e6a82774552366a">UIP_LLH_LEN</a>], <a class="code" href="a00150.html#gee37386b2ab828787c05227eb109def7">UIP_TCPIP_HLEN</a>);
hwsend(<a class="code" href="a00150.html#g561b8eda32e059d4e7397f776268cc63">uip_appdata</a>, <a class="code" href="a00149.html#g12a33f0c09711167bdf3dd7d7cf8c5a1">uip_len</a> - <a class="code" href="a00150.html#gee37386b2ab828787c05227eb109def7">UIP_TCPIP_HLEN</a> - <a class="code" href="a00153.html#ge6f4a2453dbd8bc60e6a82774552366a">UIP_LLH_LEN</a>);
}
}
</pre></div> </dd></dl>
<p>
Definition at line <a class="el" href="a00201.html#l00139">139</a> of file <a class="el" href="a00201.html">uip.c</a>.
<p>
Referenced by <a class="el" href="a00201.html#l00682">uip_process()</a>. </td>
</tr>
</table>
<a class="anchor" name="g788ffac72342f6172343d7f8099cbe1a"></a><!-- doxytag: member="uip.c::uip_conn" ref="g788ffac72342f6172343d7f8099cbe1a" args="" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top">struct <a class="el" href="a00088.html">uip_conn</a>* <a class="el" href="a00088.html">uip_conn</a> </td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<p>
Pointer to the current TCP connection.
<p>
The <a class="el" href="a00088.html">uip_conn</a> pointer can be used to access the current TCP connection.
<p>
Definition at line <a class="el" href="a00201.html#l00163">163</a> of file <a class="el" href="a00201.html">uip.c</a>.
<p>
Referenced by <a class="el" href="a00201.html#l00407">uip_connect()</a>. </td>
</tr>
</table>
<a class="anchor" name="g788ffac72342f6172343d7f8099cbe1a"></a><!-- doxytag: member="uip.h::uip_conn" ref="g788ffac72342f6172343d7f8099cbe1a" args="" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top">struct <a class="el" href="a00088.html">uip_conn</a>* <a class="el" href="a00088.html">uip_conn</a> </td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<p>
Pointer to the current TCP connection.
<p>
The <a class="el" href="a00088.html">uip_conn</a> pointer can be used to access the current TCP connection. <dl compact><dt><b>Examples: </b></dt><dd>
<a class="el" href="a00036.html#a105">hello-world.c</a>, <a class="el" href="a00038.html#a189">smtp.c</a>, and <a class="el" href="a00040.html#a269">webclient.c</a>.</dl>
<p>
Definition at line <a class="el" href="a00201.html#l00163">163</a> of file <a class="el" href="a00201.html">uip.c</a>.
<p>
Referenced by <a class="el" href="a00201.html#l00407">uip_connect()</a>. </td>
</tr>
</table>
<a class="anchor" name="g12a33f0c09711167bdf3dd7d7cf8c5a1"></a><!-- doxytag: member="uip.c::uip_len" ref="g12a33f0c09711167bdf3dd7d7cf8c5a1" args="" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"><a class="el" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a> <a class="el" href="a00150.html#g12a33f0c09711167bdf3dd7d7cf8c5a1">uip_len</a> </td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<p>
The length of the packet in the uip_buf buffer.
<p>
The global variable uip_len holds the length of the packet in the uip_buf buffer.<p>
When the network device driver calls the uIP input function, uip_len should be set to the length of the packet in the uip_buf buffer.<p>
When sending packets, the device driver should use the contents of the uip_len variable to determine the length of the outgoing packet.
<p>
Definition at line <a class="el" href="a00201.html#l00155">155</a> of file <a class="el" href="a00201.html">uip.c</a>.
<p>
Referenced by <a class="el" href="a00204.html#l00278">uip_arp_arpin()</a>, <a class="el" href="a00201.html#l00682">uip_process()</a>, and <a class="el" href="a00199.html#l00049">uip_split_output()</a>. </td>
</tr>
</table>
<a class="anchor" name="g9ee50a40597e67fce96541ab56c3b712"></a><!-- doxytag: member="uip.h::uip_stat" ref="g9ee50a40597e67fce96541ab56c3b712" args="" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top">struct <a class="el" href="a00093.html">uip_stats</a> <a class="el" href="a00150.html#g9ee50a40597e67fce96541ab56c3b712">uip_stat</a> </td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<p>
The uIP TCP/IP statistics.
<p>
This is the variable in which the uIP TCP/IP statistics are gathered.
<p>
Referenced by <a class="el" href="a00201.html#l00682">uip_process()</a>. </td>
</tr>
</table>
<hr size="1"><address style="align: right;"><small>Generated on Mon Jun 12 10:23:02 2006 for uIP 1.0 by&nbsp;
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.6 </small></address>
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