annotate lib/recvfrom.c @ 17102:9e72d3927af1

binary-io, eealloc, mbfile, mbiter, mbutil, xsize: better 'inline' * lib/binary-io.c, lib/eealloc.c, lib/mbfile.c, lib/mbiter.c: * lib/mbuiter.c, lib/xsize.c: New files. * lib/binary-io.h (BINARY_IO_INLINE): * lib/eealloc.h (EEALLOC_INLINE): * lib/mbfile.h (MBFILE_INLINE): * lib/mbiter.h (MBITER_INLINE): * lib/mbuiter.h (MBUITER_INLINE): * lib/xsize.h (XSIZE_INLINE): New macros. Replace all uses of 'static inline' with them. Use _GL_INLINE_HEADER_BEGIN, _GL_INLINE_HEADER_END. * m4/eealloc.m4 (gl_EEALLOC): * m4/mbfile.m4 (gl_MBFILE): * m4/mbiter.m4 (gl_MBITER): * m4/xsize.m4 (gl_XSIZE): Do not require AC_C_INLINE. * modules/binary-io (Files, lib_SOURCES): Add lib/binary-io.c * modules/eealloc (Files, lib_SOURCES): Add lib/eealloc.c. * modules/mbfile (Files, lib_SOURCES): Add lib/mbfile.c. * modules/mbiter (Files, lib_SOURCES): Add lib/mbiter.c. * modules/mbuiter (Files, lib_SOURCES): Add lib/mbuiter.c. * modules/xsize (Files, lib_SOURCES): Add lib/xsize.c. * modules/binary-io, modules/eealloc, modules/mbfile: * modules/mbiter, modules/mbuiter: (Depends-on): Add extern-inline.
author Paul Eggert <eggert@cs.ucla.edu>
date Wed, 29 Aug 2012 23:13:42 -0700
parents 8250f2777afc
children e542fd46ad6f
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1 /* recvfrom.c --- wrappers for Windows recvfrom function
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2
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3 Copyright (C) 2008-2012 Free Software Foundation, Inc.
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4
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5 This program is free software: you can redistribute it and/or modify
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6 it under the terms of the GNU General Public License as published by
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7 the Free Software Foundation; either version 3 of the License, or
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8 (at your option) any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU General Public License for more details.
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14
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15 You should have received a copy of the GNU General Public License
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16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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17
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18 /* Written by Paolo Bonzini */
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19
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20 #include <config.h>
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21
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22 #define WIN32_LEAN_AND_MEAN
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23 /* Get winsock2.h. */
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24 #include <sys/socket.h>
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25
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26 /* Get set_winsock_errno, FD_TO_SOCKET etc. */
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27 #include "w32sock.h"
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28
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29 #undef recvfrom
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30
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31 ssize_t
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32 rpl_recvfrom (int fd, void *buf, size_t len, int flags, struct sockaddr *from,
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33 socklen_t *fromlen)
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34 {
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35 SOCKET sock = FD_TO_SOCKET (fd);
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36
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37 if (sock == INVALID_SOCKET)
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38 {
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39 errno = EBADF;
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40 return -1;
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41 }
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42 else
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43 {
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44 int frombufsize = (from != NULL ? *fromlen : 0);
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45 int r = recvfrom (sock, buf, len, flags, from, fromlen);
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46
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47 if (r < 0)
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48 set_winsock_errno ();
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49
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50 /* Winsock recvfrom() only returns a valid 'from' when the socket is
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51 connectionless. POSIX gives a valid 'from' for all types of
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52 sockets. */
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53 else if (from != NULL && *fromlen == frombufsize)
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54 rpl_getpeername (fd, from, fromlen);
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55
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56 return r;
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57 }
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58 }