fix error returns in gethostby*_r functions

[musl] / src / network / recvmsg.c

#include <sys/socket.h>
#include <limits.h>
#include "syscall.h"
#include "libc.h"

ssize_t recvmsg(int fd, struct msghdr *msg, int flags)
{
        ssize_t r;
#if LONG_MAX > INT_MAX
        struct msghdr h, *orig = msg;
        if (msg) {
                h = *msg;
                h.__pad1 = h.__pad2 = 0;
                msg = &h;
        }
#endif
        r = socketcall_cp(recvmsg, fd, msg, flags, 0, 0, 0);
#if LONG_MAX > INT_MAX
        if (orig) *orig = h;
#endif
        return r;
}