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#include <sys/socket.h>
#include <sys/time.h>
#include <errno.h>
#include "syscall.h"
#define IS32BIT(x) !((x)+0x80000000ULL>>32)
#define CLAMP(x) (int)(IS32BIT(x) ? (x) : 0x7fffffffU+((0ULL+(x))>>63))
int setsockopt(int fd, int level, int optname, const void *optval, socklen_t optlen)
{
const struct timeval *tv;
time_t s;
suseconds_t us;
int r = __socketcall(setsockopt, fd, level, optname, optval, optlen, 0);
if (r==-ENOPROTOOPT) switch (level) {
case SOL_SOCKET:
switch (optname) {
case SO_RCVTIMEO:
case SO_SNDTIMEO:
if (SO_RCVTIMEO == SO_RCVTIMEO_OLD) break;
if (optlen < sizeof *tv) return __syscall_ret(-EINVAL);
tv = optval;
s = tv->tv_sec;
us = tv->tv_usec;
if (!IS32BIT(s)) return __syscall_ret(-ENOTSUP);
if (optname==SO_RCVTIMEO) optname=SO_RCVTIMEO_OLD;
if (optname==SO_SNDTIMEO) optname=SO_SNDTIMEO_OLD;
r = __socketcall(setsockopt, fd, level, optname,
((long[]){s, CLAMP(us)}), 2*sizeof(long), 0);
}
}
return __syscall_ret(r);
}
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