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| -rw-r--r-- | src/c-ares/ares_set_local_dev.3 | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/src/c-ares/ares_set_local_dev.3 b/src/c-ares/ares_set_local_dev.3 new file mode 100644 index 00000000..f4468888 --- /dev/null +++ b/src/c-ares/ares_set_local_dev.3 @@ -0,0 +1,39 @@ +.\" +.\" Copyright 2010 by Ben Greear <greearb@candelatech.com> +.\" +.\" Permission to use, copy, modify, and distribute this +.\" software and its documentation for any purpose and without +.\" fee is hereby granted, provided that the above copyright +.\" notice appear in all copies and that both that copyright +.\" notice and this permission notice appear in supporting +.\" documentation, and that the name of M.I.T. not be used in +.\" advertising or publicity pertaining to distribution of the +.\" software without specific, written prior permission. +.\" M.I.T. makes no representations about the suitability of +.\" this software for any purpose. It is provided "as is" +.\" without express or implied warranty. +.\" +.TH ARES_SET_LOCAL_DEV 3 "30 June 2010" +.SH NAME +ares_set_local_dev \- Bind to a specific network device when creating sockets. +.SH SYNOPSIS +.nf +.B #include <ares.h> +.PP +.B void ares_set_local_dev(ares_channel \fIchannel\fP, const char* \fIlocal_dev_name\fP) +.fi +.SH DESCRIPTION +The \fBares_set_local_dev\fP function causes all future sockets +to be bound to this device with SO_BINDTODEVICE. This forces communications +to go over a certain interface, which can be useful on multi-homed machines. +This option is only supported on Linux, and root privileges are required +for the option to work. If SO_BINDTODEVICE is not supported or the +setsocktop call fails (probably because of permissions), the error is +silently ignored. +.SH SEE ALSO +.BR ares_set_local_ipv4 (3) +.BR ares_set_local_ipv6 (3) +.SH NOTES +This function was added in c-ares 1.7.4 +.SH AUTHOR +Ben Greear |