diff options
Diffstat (limited to 'src/network/recvmmsg.c')
| -rw-r--r-- | src/network/recvmmsg.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/network/recvmmsg.c b/src/network/recvmmsg.c index 58b1b2f6..1dc67932 100644 --- a/src/network/recvmmsg.c +++ b/src/network/recvmmsg.c @@ -1,8 +1,13 @@ #define _GNU_SOURCE #include <sys/socket.h> #include <limits.h> +#include <errno.h> +#include <time.h> #include "syscall.h" +#define IS32BIT(x) !((x)+0x80000000ULL>>32) +#define CLAMP(x) (int)(IS32BIT(x) ? (x) : 0x7fffffffU+((0ULL+(x))>>63)) + int recvmmsg(int fd, struct mmsghdr *msgvec, unsigned int vlen, unsigned int flags, struct timespec *timeout) { #if LONG_MAX > INT_MAX @@ -11,5 +16,18 @@ int recvmmsg(int fd, struct mmsghdr *msgvec, unsigned int vlen, unsigned int fla for (i = vlen; i; i--, mh++) mh->msg_hdr.__pad1 = mh->msg_hdr.__pad2 = 0; #endif +#ifdef SYS_recvmmsg_time64 + time_t s = timeout ? timeout->tv_sec : 0; + long ns = timeout ? timeout->tv_nsec : 0; + int r = -ENOSYS; + if (SYS_recvmmsg == SYS_recvmmsg_time64 || !IS32BIT(s)) + r = __syscall_cp(SYS_recvmmsg_time64, fd, msgvec, vlen, flags, + ((long long[]){s, ns})); + if (SYS_recvmmsg == SYS_recvmmsg_time64 || r!=-ENOSYS) + return __syscall_ret(r); + return syscall_cp(SYS_recvmmsg, fd, msgvec, vlen, flags, + timeout ? ((long[]){CLAMP(s), ns}) : 0); +#else return syscall_cp(SYS_recvmmsg, fd, msgvec, vlen, flags, timeout); +#endif } |