1<html> 2<head><title>smfi_setconn</title></head> 3<body> 4<!-- 5$Id: smfi_setconn.html,v 1.14 2003/05/26 05:09:16 gshapiro Exp $ 6--> 7<h1>smfi_setconn</h1> 8 9<table border="0" cellspacing=4 cellpadding=4> 10<!---------- Synopsis -----------> 11<tr><th valign="top" align=left width=150>SYNOPSIS</th><td> 12<pre> 13#include <libmilter/mfapi.h> 14int smfi_setconn( 15 char *oconn; 16); 17</pre> 18Set the socket through which this filter should communicate with sendmail. 19</td></tr> 20 21<!----------- Description ----------> 22<tr><th valign="top" align=left>DESCRIPTION</th><td> 23<table border="1" cellspacing=1 cellpadding=4> 24<tr align="left" valign=top> 25<th width="80">Called When</th> 26<td>smfi_setconn must be called once before <a href="smfi_main.html">smfi_main</a>.</td> 27</tr> 28<tr align="left" valign=top> 29<th width="80">Effects</th> 30<td>Sets the socket through which the filter communicates with sendmail.</td> 31</tr> 32</table> 33 34<!----------- Arguments ----------> 35<tr><th valign="top" align=left>ARGUMENTS</th><td> 36 <table border="1" cellspacing=0> 37 <tr bgcolor="#dddddd"><th>Argument</th><th>Description</th></tr> 38 <tr valign="top"><td>oconn</td> 39 <td>The address of the desired communication socket. 40 The address should be a NULL-terminated string in "proto:address" 41 format: 42 <ul> 43 <li><code>{unix|local}:/path/to/file</code> -- A named pipe. 44 <li><code>inet:port@{hostname|ip-address}</code> -- An IPV4 socket. 45 <li><code>inet6:port@{hostname|ip-address}</code> -- An IPV6 socket. 46 </ul> 47 </td></tr> 48 </table> 49</td></tr> 50 51<!----------- Return values ----------> 52<tr> 53<th valign="top" align=left>RETURN VALUES</th> 54 55<td>smfi_setconn will not fail on an invalid address. 56The failure will only be detected in <a href="smfi_main.html">smfi_main</a></td>. 57Nevertheless, smfi_setconn may fail for other reasons, e.g., 58due to a lack of memory. 59</tr> 60 61<tr> 62<th valign="top" align=left>NOTES</th> 63 64<td> 65<ul> 66 <li>If possible, filters should not run as root when communicating 67 over unix/local domain sockets. 68 <li>Unix/local sockets should have their permissions set to 69 0600 (read/write permission only for the socket's owner) or 70 0660 (read/write permission for the socket's owner and group) 71 which is useful if the sendmail RunAsUser option is used. 72 The permissions for a unix/local domain socket are determined as 73 usual by <code>umask</code>, which should be set to 007 or 077. 74 Note some operating systems (e.g, Solaris) don't use the 75 permissions of the socket. On those systems, place the socket in a 76 protected directory. 77</ul> 78</td> 79</tr> 80 81</table> 82 83<hr size="1"> 84<font size="-1"> 85Copyright (c) 2000, 2003 Sendmail, Inc. and its suppliers. 86All rights reserved. 87<br> 88By using this file, you agree to the terms and conditions set 89forth in the LICENSE. 90</font> 91</body> 92</html> 93