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diff --git a/man/man3/udpread.html b/man/man3/udpread.html new file mode 100644 index 00000000..e8f0d37b --- /dev/null +++ b/man/man3/udpread.html @@ -0,0 +1,105 @@ +<head> +<title>udpread(3) - Plan 9 from User Space</title> +<meta content="text/html; charset=utf-8" http-equiv=Content-Type> +</head> +<body bgcolor=#ffffff> +<table border=0 cellpadding=0 cellspacing=0 width=100%> +<tr height=10><td> +<tr><td width=20><td> +<tr><td width=20><td><b>UDPREAD(3)</b><td align=right><b>UDPREAD(3)</b> +<tr><td width=20><td colspan=2> + <br> +<p><font size=+1><b>NAME </b></font><br> + +<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> + + udpread, udpwrite – read and write UDP packets<br> + +</table> +<p><font size=+1><b>SYNOPSIS </b></font><br> + +<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> + + <tt><font size=+1>#include <u.h> + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + </font></tt> + <tt><font size=+1>#include <libc.h> + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + </font></tt> + <tt><font size=+1>#include <ip.h> + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + </font></tt> + <tt><font size=+1>typedef struct Udphdr Udphdr;<br> + </font></tt>struct Udphdr<br> + {<br> + + <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> + + uchar raddr[IPaddrlen];/* remote address and port */<br> + uchar laddr[IPaddrlen];/* local address and port */<br> + uchar rport[2];<br> + uchar lport[2];<br> + + </table> + };<br> + + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + + <tt><font size=+1>long udpread(int fd, Udphdr *hdr, void *data, long n)<br> + + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + </font></tt> + <tt><font size=+1>long udpwrite(int fd, Udphdr *hdr, void *data, long n)<br> + </font></tt> +</table> +<p><font size=+1><b>DESCRIPTION </b></font><br> + +<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> + + <i>Udpread</i> and <i>udpwrite</i> read and write UDP packets from the UDP network + connection established on file descriptor <i>fd</i>. + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + + <i>Udpread</i> reads at most <i>n</i> bytes of packet body into <i>data ,</i> stores + the header in <i>hdr</i>, and returns the number of bytes stored in <i>data</i>. + + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + + <i>Udpwrite</i> writes the <i>n</i> bytes stored in <i>data</i> in a UDP packet with + header <i>hdr</i>. + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + + Note that the <tt><font size=+1>Udphdr</font></tt> frames the addresses as local and remote + instead of source and destination. Thus the <i>hdr</i> filled in for + a packet read by <i>udpread</i> can be used unchanged in <i>udpwrite</i> to + send a response back to the sender of the original packet.<br> + +</table> +<p><font size=+1><b>SOURCE </b></font><br> + +<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> + + <tt><font size=+1>/usr/local/plan9/src/lib9/udp.c<br> + </font></tt> +</table> +<p><font size=+1><b>SEE ALSO </b></font><br> + +<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> + + <a href="../man3/ip.html"><i>ip</i>(3)</a><br> + +</table> + +<td width=20> +<tr height=20><td> +</table> +<!-- TRAILER --> +<table border=0 cellpadding=0 cellspacing=0 width=100%> +<tr height=15><td width=10><td><td width=10> +<tr><td><td> +<center> +<a href="../../"><img src="../../dist/spaceglenda100.png" alt="Space Glenda" border=1></a> +</center> +</table> +<!-- TRAILER --> +</body></html> |