_PUBLIC_ ssize_t swrap_recvfrom(int s, void *buf, size_t len, int flags, struct sockaddr *from, socklen_t *fromlen)
{
struct sockaddr_un un_addr;
socklen_t un_addrlen = sizeof(un_addr);
int ret;
struct socket_info *si = find_socket_info(s);
struct sockaddr_storage ss;
socklen_t ss_len = sizeof(ss);
if (!si) {
return real_recvfrom(s, buf, len, flags, from, fromlen);
}
if (!from) {
from = (struct sockaddr *)&ss;
fromlen = &ss_len;
}
len = MIN(len, 1500);
/* irix 6.4 forgets to null terminate the sun_path string :-( */
memset(&un_addr, 0, sizeof(un_addr));
ret = real_recvfrom(s, buf, len, flags, (struct sockaddr *)&un_addr, &un_addrlen);
if (ret == -1)
return ret;
if (sockaddr_convert_from_un(si, &un_addr, un_addrlen,
si->family, from, fromlen) == -1) {
return -1;
}
swrap_dump_packet(si, from, SWRAP_RECVFROM, buf, ret);
return ret;
}
ssize_t
recvfrom(int s, void *buf, size_t len, int flags, struct sockaddr *from, socklen_t *fromlen)
{
ssize_t retval;
print_trace ("%*srecvfrom(%d, %p, %d, %d, %p, %p)=...\n", indent, "",
s, buf, len, flags, from, fromlen);
indent+=2;
/* call the real recvfrom function */
retval = real_recvfrom (s, buf, len, flags, from, fromlen);
indent-=2;
print_trace ("%*srecvfrom(%d, %p, %d, %d, %p, %p)=%d\n", indent, "",
s, buf, len, flags, from, fromlen, retval);
return retval;
}
ssize_t recvfrom(int socket, void *buffer, size_t length, int flags,
struct sockaddr *address, socklen_t *address_len)
{
static struct sockaddr_in *address_in;
address_in = (struct sockaddr_in *)address;
if (address_in != NULL && address_in->sin_port == old_port) {
address_in->sin_port = new_port;
}
ssize_t res;
res = real_recvfrom(socket, buffer, length, flags, address,
address_len);
if (address_in != NULL && address_in->sin_port == new_port) {
address_in->sin_port = old_port;
}
return res;
}
