ares_fds - return file descriptors to select on
#include <ares.h> int ares_fds(ares_channel channel, fd_set *read_fds, fd_set *write_fds)
ARES_FDS(3) Library Functions Manual ARES_FDS(3)
NAME
ares_fds - return file descriptors to select on
SYNOPSIS
#include <ares.h>
int ares_fds(ares_channel channel,
fd_set *read_fds,
fd_set *write_fds)
DESCRIPTION
The ares_fds(3) function retrieves the set of file descriptors which
the calling application should select on for reading and writing for
the processing of name service queries pending on the name service
channel identified by channel.
File descriptors will be set in the file descriptor sets pointed to by
read_fds and write_fds as appropriate. File descriptors already set in
read_fds and write_fds will remain set; initialization of the file
descriptor sets (using FD_ZERO) is the responsibility of the caller.
RETURN VALUES
ares_fds(3) returns a value that is one greater than the number of the
highest socket set in either read_fds or write_fds. If no queries are
active, ares_fds(3) returns 0.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | library/libcares |
+---------------+------------------+
|Stability | Volatile |
+---------------+------------------+
SEE ALSO
ares_timeout(3), ares_process(3)
AUTHOR
Greg Hudson, MIT Information Systems
Copyright 1998 by the Massachusetts Institute of Technology.
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from https://c-ares.haxx.se/download/c-
ares-1.17.2.tar.gz.
Further information about this software can be found on the open source
community website at https://c-ares.haxx.se/.
23 July 1998 ARES_FDS(3)