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