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annotate lib/getsockopt.c @ 40231:9b3c79fdfe0b

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strtod: fix clash with strtold Problem reported for RHEL 5 by Jesse Caldwell (Bug#34817). * lib/strtod.c (compute_minus_zero, minus_zero): Simplify by remving the macro / external variable, and having just a function. User changed. This avoids the need for an external variable that might clash.
author Paul Eggert <eggert@cs.ucla.edu>
date Mon, 11 Mar 2019 16:40:29 -0700
parents b06060465f09
children
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1 /* getsockopt.c --- wrappers for Windows getsockopt function
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2
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3 Copyright (C) 2008-2019 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 <https://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 struct timeval. */
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27 #include <sys/time.h>
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28
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29 /* Get memcpy. */
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30 #include <string.h>
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31
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32 /* Get set_winsock_errno, FD_TO_SOCKET etc. */
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33 #include "w32sock.h"
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34
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35 #undef getsockopt
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36
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37 int
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38 rpl_getsockopt (int fd, int level, int optname, void *optval, socklen_t *optlen)
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39 {
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40 SOCKET sock = FD_TO_SOCKET (fd);
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41
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42 if (sock == INVALID_SOCKET)
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43 {
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44 errno = EBADF;
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45 return -1;
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46 }
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47 else
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48 {
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49 int r;
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50
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51 if (level == SOL_SOCKET
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52 && (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO))
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53 {
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54 int milliseconds;
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55 int milliseconds_len = sizeof (int);
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56 struct timeval tv;
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57 size_t n;
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58
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59 r = getsockopt (sock, level, optname, (char *) &milliseconds,
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60 &milliseconds_len);
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61 tv.tv_sec = milliseconds / 1000;
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62 tv.tv_usec = (milliseconds - 1000 * tv.tv_sec) * 1000;
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63 n = sizeof (struct timeval);
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64 if (n > *optlen)
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65 n = *optlen;
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66 memcpy (optval, &tv, n);
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67 *optlen = n;
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68 }
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69 else
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70 {
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71 r = getsockopt (sock, level, optname, optval, optlen);
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72 }
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73
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74 if (r < 0)
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75 set_winsock_errno ();
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76
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77 return r;
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78 }
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79 }