c85bf83e88
check for ssize_t to make it possible to use that when receiving the send() error code. This is necessary to prevent compiler warnings on some systems. - Made configure create config.h, and all source files now include setup.h that might include the proper config.h (or a handicrafted alternative). - Switched to 'ares_socket_t' type for sockets in ares, since Windows don't use 'int' for that. - automake-ified and libool-ified c-ares. Now it builds libcares as a shared lib on most platforms if wanted. (This bloated the size of the release archive with another 200K!) - Makefile.am now uses Makefile.inc for the c sources, h headers and man pages, to make it easier for other makefiles to use the exact same set of files. - Adjusted 'maketgz' to use the new automake magic when building distribution archives.
58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
/* Copyright 1998 by the Massachusetts Institute of Technology.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include "setup.h"
|
|
#include <sys/types.h>
|
|
|
|
#ifdef WIN32
|
|
|
|
#else
|
|
#include <sys/time.h>
|
|
#endif
|
|
|
|
#include "ares.h"
|
|
#include "ares_private.h"
|
|
|
|
int ares_fds(ares_channel channel, fd_set *read_fds, fd_set *write_fds)
|
|
{
|
|
struct server_state *server;
|
|
int i, nfds;
|
|
|
|
/* No queries, no file descriptors. */
|
|
if (!channel->queries)
|
|
return 0;
|
|
|
|
nfds = 0;
|
|
for (i = 0; i < channel->nservers; i++)
|
|
{
|
|
server = &channel->servers[i];
|
|
if (server->udp_socket != ARES_SOCKET_BAD)
|
|
{
|
|
FD_SET(server->udp_socket, read_fds);
|
|
if (server->udp_socket >= nfds)
|
|
nfds = server->udp_socket + 1;
|
|
}
|
|
if (server->tcp_socket != ARES_SOCKET_BAD)
|
|
{
|
|
FD_SET(server->tcp_socket, read_fds);
|
|
if (server->qhead)
|
|
FD_SET(server->tcp_socket, write_fds);
|
|
if (server->tcp_socket >= nfds)
|
|
nfds = server->tcp_socket + 1;
|
|
}
|
|
}
|
|
return nfds;
|
|
}
|