1#include <sys/socket.h>
2#include <sys/time.h>
3#include <errno.h>
4#include "syscall.h"
5
6int getsockopt(int fd, int level, int optname, void *restrict optval, socklen_t *restrict optlen)
7{
8 long tv32[2];
9 struct timeval *tv;
10
11 int r = __socketcall(getsockopt, fd, level, optname, optval, optlen, 0);
12
13 if (r==-ENOPROTOOPT) switch (level) {
14 case SOL_SOCKET:
15 switch (optname) {
16 case SO_RCVTIMEO:
17 case SO_SNDTIMEO:
18 if (SO_RCVTIMEO == SO_RCVTIMEO_OLD) break;
19 if (*optlen < sizeof *tv) return __syscall_ret(-EINVAL);
20 if (optname==SO_RCVTIMEO) optname=SO_RCVTIMEO_OLD;
21 if (optname==SO_SNDTIMEO) optname=SO_SNDTIMEO_OLD;
22 r = __socketcall(getsockopt, fd, level, optname,
23 tv32, (socklen_t[]){sizeof tv32}, 0);
24 if (r<0) break;
25 tv = optval;
26 tv->tv_sec = tv32[0];
27 tv->tv_usec = tv32[1];
28 *optlen = sizeof *tv;
29 break;
30 case SO_TIMESTAMP:
31 case SO_TIMESTAMPNS:
32 if (SO_TIMESTAMP == SO_TIMESTAMP_OLD) break;
33 if (optname==SO_TIMESTAMP) optname=SO_TIMESTAMP_OLD;
34 if (optname==SO_TIMESTAMPNS) optname=SO_TIMESTAMPNS_OLD;
35 r = __socketcall(getsockopt, fd, level,
36 optname, optval, optlen, 0);
37 break;
38 }
39 }
40 return __syscall_ret(r);
41}