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Diffstat (limited to 'ares/setup_once.h')
| -rw-r--r-- | ares/setup_once.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/ares/setup_once.h b/ares/setup_once.h new file mode 100644 index 000000000..065a0888e --- /dev/null +++ b/ares/setup_once.h @@ -0,0 +1,99 @@ +#ifndef __SETUP_ONCE_H +#define __SETUP_ONCE_H + +/* $Id$ */ + +/* Copyright (C) 2004 - 2006 by Daniel Stenberg et al + * + * 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. + */ + + +/* + * If we have the MSG_NOSIGNAL define, make sure we use + * it as the fourth argument of send() and recv() + */ + +#ifdef HAVE_MSG_NOSIGNAL +#define SEND_4TH_ARG MSG_NOSIGNAL +#else +#define SEND_4TH_ARG 0 +#endif + + +/* + * The definitions for the return type and arguments types + * of functions recv() and send() belong and come from the + * configuration file. Do not define them in any other place. + * + * HAVE_RECV is defined if you have a function named recv() + * which is used to read incoming data from sockets. If your + * function has another name then don't define HAVE_RECV. + * + * If HAVE_RECV is defined then RECV_TYPE_ARG1, RECV_TYPE_ARG2, + * RECV_TYPE_ARG3, RECV_TYPE_ARG4 and RECV_TYPE_RETV must also + * be defined. + * + * HAVE_SEND is defined if you have a function named send() + * which is used to write outgoing data on a connected socket. + * If yours has another name then don't define HAVE_SEND. + * + * If HAVE_SEND is defined then SEND_TYPE_ARG1, SEND_QUAL_ARG2, + * SEND_TYPE_ARG2, SEND_TYPE_ARG3, SEND_TYPE_ARG4 and + * SEND_TYPE_RETV must also be defined. + */ + +#ifdef HAVE_RECV +#if !defined(RECV_TYPE_ARG1) || \ + !defined(RECV_TYPE_ARG2) || \ + !defined(RECV_TYPE_ARG3) || \ + !defined(RECV_TYPE_ARG4) || \ + !defined(RECV_TYPE_RETV) + /* */ + Error Missing_definition_of_return_and_arguments_types_of_recv + /* */ +#else +#define sread(x,y,z) (ssize_t)recv((RECV_TYPE_ARG1)(x), \ + (RECV_TYPE_ARG2)(y), \ + (RECV_TYPE_ARG3)(z), \ + (RECV_TYPE_ARG4)(SEND_4TH_ARG)) +#endif +#else /* HAVE_RECV */ +#ifdef DJGPP +#define sread(x,y,z) (ssize_t)read_s((int)(x), (char *)(y), (int)(z)) +#endif +#endif /* HAVE_RECV */ + +#ifdef HAVE_SEND +#if !defined(SEND_TYPE_ARG1) || \ + !defined(SEND_QUAL_ARG2) || \ + !defined(SEND_TYPE_ARG2) || \ + !defined(SEND_TYPE_ARG3) || \ + !defined(SEND_TYPE_ARG4) || \ + !defined(SEND_TYPE_RETV) + /* */ + Error Missing_definition_of_return_and_arguments_types_of_send + /* */ +#else +#define swrite(x,y,z) (ssize_t)send((SEND_TYPE_ARG1)(x), \ + (SEND_TYPE_ARG2)(y), \ + (SEND_TYPE_ARG3)(z), \ + (SEND_TYPE_ARG4)(SEND_4TH_ARG)) +#endif +#else /* HAVE_SEND */ +#ifdef DJGPP +#define swrite(x,y,z) (ssize_t)write_s((int)(x), (char *)(y), (int)(z)) +#endif +#endif /* HAVE_SEND */ + + +#endif /* __SETUP_ONCE_H */ + |