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| author | rsc <devnull@localhost> | 2005-01-14 03:45:44 +0000 |
|---|---|---|
| committer | rsc <devnull@localhost> | 2005-01-14 03:45:44 +0000 |
| commit | 78e51a8c6678b6e3dff3d619aa786669f531f4bc (patch) | |
| tree | 015e00fde4fc837fd31b705e18d17dc913829388 /man/man3/sendfd.html | |
| parent | 2634795b5f0053bc0ff08e5d7bbc0eda8efea061 (diff) | |
| download | plan9port-78e51a8c6678b6e3dff3d619aa786669f531f4bc.tar.gz plan9port-78e51a8c6678b6e3dff3d619aa786669f531f4bc.tar.bz2 plan9port-78e51a8c6678b6e3dff3d619aa786669f531f4bc.zip | |
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diff --git a/man/man3/sendfd.html b/man/man3/sendfd.html new file mode 100644 index 00000000..37007603 --- /dev/null +++ b/man/man3/sendfd.html @@ -0,0 +1,85 @@ +<head> +<title>sendfd(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>SENDFD(3)</b><td align=right><b>SENDFD(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> + + sendfd, recvfd – pass file descriptors along Unix domain sockets<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>int sendfd(int socket, int fd) + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + </font></tt> + <tt><font size=+1>int recvfd(int socket)<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>Recvfd</i> and <i>sendfd</i> can be used to pass an open file descriptor + over a Unix domain socket from one process to another. Since <a href="../man3/pipe.html"><i>pipe</i>(3)</a> + is implemented with <a href="../man2/socketpair.html"><i>socketpair</i>(2)</a> instead of <a href="../man2/pipe.html"><i>pipe</i>(2)</a>, <i>socket</i> can + be a file descriptor obtained from <a href="../man3/pipe.html"><i>pipe</i>(3)</a>. + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + + <i>Sendfd</i> sends the file descriptor <i>fd</i> along the socket to a process + calling <i>recvfd</i> on the other end. + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + + It is assumed that the two sides have coordinated and agreed to + transfer a file descriptor already, so that the <i>sendfd</i> is met + with a <i>recvfd</i> instead of an ordinary <i>read</i>. + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + + The file descriptor number may change on its way between processes, + but the kernel structure it represents will not.<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/sendfd.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="../man2/socketpair.html"><i>socketpair</i>(2)</a>, <i>sendmsg</i> in <a href="../man2/send.html"><i>send</i>(2)</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> |