1#include <sys/socket.h>
2#include <limits.h>
3#include <string.h>
4#include <errno.h>
5#include "syscall.h"
6#include "libc.h"
7
8ssize_t sendmsg(int fd, const struct msghdr *msg, int flags)
9{
10#if LONG_MAX > INT_MAX
11	struct msghdr h;
12	struct cmsghdr chbuf[1024/sizeof(struct cmsghdr)+1], *c;
13	if (msg) {
14		h = *msg;
15		h.__pad1 = h.__pad2 = 0;
16		msg = &h;
17		if (h.msg_controllen) {
18			if (h.msg_controllen > 1024) {
19				errno = ENOMEM;
20				return -1;
21			}
22			memcpy(chbuf, h.msg_control, h.msg_controllen);
23			h.msg_control = chbuf;
24			for (c=CMSG_FIRSTHDR(&h); c; c=CMSG_NXTHDR(&h,c))
25				c->__pad1 = 0;
26		}
27	}
28#endif
29	return socketcall_cp(sendmsg, fd, msg, flags, 0, 0, 0);
30}
31