ssize_t sendmsg(int sock, const struct msghdr *msg, int flags)
{
int r;
int uds_sotype;
if (msg == NULL) {
errno= EFAULT;
return -1;
}
r= ioctl(sock, NWIOGUDSSOTYPE, &uds_sotype);
if (r != -1 || errno != ENOTTY) {
if (r == -1) {
return r;
}
if (uds_sotype == SOCK_DGRAM) {
return _uds_sendmsg_dgram(sock, msg, flags);
} else {
return _uds_sendmsg_conn(sock, msg, flags);
}
}
#if DEBUG
fprintf(stderr, "sendmsg: not implemented for fd %d\n", sock);
#endif
errno= ENOSYS;
return -1;
}
ssize_t sendmsg(int sock, const struct msghdr *msg, int flags)
{
int r;
int uds_sotype;
r = __sendmsg(sock, msg, flags);
if (r != -1 || (errno != ENOTSOCK && errno != ENOSYS))
return r;
if (msg == NULL) {
errno= EFAULT;
return -1;
}
/* For old socket driver implementations, this flag is the default. */
flags &= ~MSG_NOSIGNAL;
r= ioctl(sock, NWIOGUDSSOTYPE, &uds_sotype);
if (r != -1 || errno != ENOTTY) {
if (r == -1) {
return r;
}
if (uds_sotype == SOCK_DGRAM) {
return _uds_sendmsg_dgram(sock, msg, flags);
} else {
return _uds_sendmsg_conn(sock, msg, flags);
}
}
errno = ENOTSOCK;
return -1;
}